Dry goods for electric vehicle travel: sharing of riding experience for ten years

           Dry goods of electric vehicles: ten years of experience sharing

[outline]

First, electric car travel: there are pains and joys, saving effort and worry.

1, the bitterness and joy of electric car travel

2. Can working people travel by electric car?

3, four factors that affect the long-distance travel of electric vehicles

4. Is it better to ride or ride alone?

5, netizens’ expectations for electric car travel and Lao Su’s comments

6. Electric vehicle travel under the epidemic situation

Second, the choice and configuration of electric vehicles: what suits you is the best.

7. What kind of electric car can travel long distances?

8, how to choose a suitable electric car

9. Why choose a small electric car?

10. Which model is suitable for girls to ride?

11. What electric car should I buy for my wife?

12, lead-acid batteries can also run long distances.

13. Choose lithium battery or lead-acid battery

14. Isn’t it better to bring more batteries on the road?

15. How to place the spare battery?

16. Is a solar tricycle feasible?

17. Is puncture prevention reliable?

18, why do you want to modify the car?

19. How to modify an electric car?

20, the benefits of adding precursors

21, the rational use of front and rear drive

22, front and rear wheel speed synchronization processing

Third, the preparation before the electric car travels: know yourself and know yourself, and plan ahead.

23, how to test the car?

24. How to make a travel plan?

25. How to determine the departure time?

26. What software is used to choose the route?

27. Do you use mobile navigation?

28. What luggage should I bring?

29, with or without spare parts for equipment and vehicles

30. How much silver should I prepare for a long trip?

31. How much cash should I take with me on the way?

32, the use of dog stick

33. Safety measures for riding in remote areas

34. Be prepared for long-distance riding.

35. Make good preparations before departure every day.

36. Power supply conditions on the road to Tibet

37. Is it necessary to change to a bigger charger?

38. How to take the first step

Fourth, common problems in electric vehicle riding: predict in advance and calmly deal with them.

39. How about replacing a small electric motor with a large one?

40. Is it hard to pedal an electric car uphill?

41, how to avoid the danger of burning the motor?

42, which car feels the best when riding?

43, where to charge halfway?

44. What if there is no electricity on the road?

45. What should I do if the car breaks down on the way?

46. What should I do if it rains when riding?

47. How to pass through wading sections and sandy roads?

48. How to ride in snowy weather?

49, how to pass through the old long tunnel

50. What should I do if I meet a dog on the road?

51, measures to deal with low temperature power loss

52, the timing of changing batteries on the way

53. How to park your car in the scenic spot?

54. Will it be a pity to miss the scenery?

55, how to find hidden unique beauty?

56, the reasons for taking less pictures of humanities

57. How to choose a suitable hotel

58. What if I can’t find a hotel?

59. How to charge when staying in a hotel?

60. How to reassure your family on the road?

61, did the traffic police stop you?

62. About riding safety

63, about property safety

Fifth, the follow-up work of electric vehicle travel: good beginning and good end, summary and improvement

64, check the car and battery

65, why not send the electric car home by express?

66, why not broadcast live on the way?

67. Why did the post text decrease?

68, the photo is blurred, what is the reason?

69, is it still a small tram to start again?

70, the landlord will not choose a mount.

71, travel narrative is too straight.

72. Last question: How can I go further by electric car?


[Preface]

    Dry goods, intuitively understood, refer to condiments and foods with water removed by air-drying and air-drying, such as dried peppers, fungus, laver and mushrooms with water removed. Dry goods are extended to all walks of life, which means that the content shared is practical and does not contain water blowing components, indicating that this knowledge, methods and skills are more important and practical.

    After many posts of Lao Su riding the motherland freely with a small electric car were published on 8264. com, many netizens expressed concern about this alternative way of riding and put forward some practical problems in traveling by electric car. Do you want to write a special post to talk about your personal experience? My heart has always been tangled. Lao Su is just an ordinary electric bicycle rider. Although he has some practical experience, he is just a little white in the technical theory of electric vehicles, and it is difficult to answer accurately and scientifically. However, recalling a lot of riding information from website platforms and netizens in the past ten years, I have benefited a lot and should be grateful for your help. Although my level and ability are limited, I can also be a paving stone for electric car travel, so that the latecomers can feel more at ease. I’d like to open my mind and feel at ease. My so-called experience is just my personal experience and understanding of electric vehicles after a long ride. Some of the solutions to the problems are handled according to their riding habits, and there are inevitably some shortcomings. Please help us correct them.

    According to the development process before, during and after, this paper divides 72 common problems of electric vehicle travel into five parts: travel, vehicle, preparation, riding and aftermath, and introduces personal experience in the form of question and answer. Careful readers will find that most of these questions are raised by netizens in the process of posting, and basically retain the original words of the questioner. Lao Su’s answer now is actually just an enhanced version of the reply at that time. This way of writing aims at strengthening pertinence and facilitating two-way communication and discussion. If netizens keep asking new questions, this article can continue to write back, and I look forward to your advice.

First, electric car travel: there are pains and joys, saving effort and worry.

    With the progress of the times, affordable electric vehicles have entered thousands of households and become popular national cars. Traveling by car is a good wish of many electric car enthusiasts, and it is also the yearning and pursuit of a happy life for ordinary people. Old Su’s dream in his later years was no more than that, so he flew first and started a free ride on the motherland with an ordinary electric car. After ten years of hardships and hardships, my friends, including cyclists, motorcyclists and friends, experienced the hardships of the journey together and enjoyed the happiness of the trip. I want to tell you with my riding experience that electric car travel is not a dream, and it is not difficult. You can do it, I can do it, and he can do it. As long as you take the first step bravely, you can experience the fun.

1. In your post, I saw the phrase "Ten years’ hard journey, experience hardships and enjoy happiness". I want to know what hardships electric bicycle travel suffers. What kind of fun do you enjoy?

    There are three pleasures in electric car travel: one is more labor-saving, the other is more money-saving, and the third is more satisfactory. Needless to say, riding an electric car saves effort. Even the elderly and infirm like me can ride the Qinghai-Tibet Plateau, and the electric car has made great achievements. Recently, I saw a cyclist playing the banner of "protecting knees, everyone is responsible", and riding an electric car may get twice the result with half the effort.

    I have personal experience of saving money. Take SUNRA purchased in 2013 as an example. The price of a new car and two batteries is 3,830 yuan. In 2014, a 12A lithium battery 800 yuan was added, and in 2015, the front wheel motor was added and three 20A lithium batteries were replaced, totaling 5,100 yuan, including the normal maintenance expenses such as tire replacement, about 10,430 yuan. This car was retired in 2016, and it ran more than 35,000 kilometers in 30 provinces and autonomous regions, and rode more than 7,000 kilometers for short-distance and daily use. At the very most, the average riding cost per kilometer did not exceed 0.25 yuan. If we consider that the lithium battery purchased in 2015 was only used for one year (it ran more than 10,000 kilometers in 2017 and will continue to be used in 2018), the average riding cost per kilometer will not exceed 0.17 yuan according to the service life of three-year replacement. Compared with other means of transportation, the cost performance of electric vehicles is still very high. Saving money is the last word, so why not?

    The pleasure of traveling is due to the convenience of riding an electric car. It is really a happy life to be able to ride the motherland freely with an electric car. As far as the outdoor travel mode is concerned, it is too slow, too tired to ride a bicycle, too fast to travel and drive by car, and too much scenery is lost. The riding speed of electric vehicles is not too slow, so you can enjoy the fun of riding and the beautiful scenery along the route when you have time. When you are interested, you can also stop to enjoy the fine products and even make some extended in-depth investigations impromptu, which is difficult for other modes of travel. On the Sichuan-Tibet road, I walked with young cyclists. Most of them were exhausted and missed a lot of scenery. At night, they will urge me, "Uncle, hurry up and get on the map, we are waiting to steal it." Can you not be happy in this situation?

    The pain of electric car travel is that it is more troublesome. This is due to the characteristics of electric vehicles and the immature riding environment. Electric vehicles are powered by their own batteries, and their endurance is limited. It also takes some time and premise to supplement electricity. Therefore, when planning the trip and arranging accommodation, we should consider the charging conditions, and even get up at night to check the charging situation to ensure safety and full charge.

    Second, you will encounter all kinds of difficulties between heaven and earth in long-distance travel. The figure of electric vehicles is relatively delicate, and the riding capacity is far behind that of bicycles and motorcycles. For example, muddy sidewalks, wading sections, rugged mountain roads and windy, rainy and snowy weather all test the condition of the car and the adaptability of the rider. Do your homework beforehand, plan ahead and prepare a plan, so as to avoid being helpless at that time.

    Third, the failure of electric vehicles in long-distance travel is inevitable. At this time, it is your luck to have a maintenance point nearby, and you can only stand on your own feet in the middle of nowhere. Therefore, it is also necessary to master some basic knowledge and practical skills of electric vehicles. Therefore, electric vehicles can only save effort, not worry. If you worry more beforehand, you will suffer less when you encounter difficulties.

2, your electric car travel is long and slow, and it seems to be only suitable for the elderly who have time. Excuse me, can working people also travel by electric car?

    Traveling slowly by electric car is suitable for people who have time, including middle-aged and elderly people and young people. I saw that most of the cyclists on the Sichuan-Tibet, Yunnan-Tibet and Qinghai-Tibet lines were young people, and it took them about 20 to 30 days to complete their trip to Tibet. Seeing that my riding is relatively easy, many young people try to ride it. Some people say that they will ride an electric car next time they enter Tibet. The outside world is wonderful, but the real life is helpless. Young people have jobs, no time, no time and no job! I understand this kind of distress that it is difficult to leave everything behind and travel far, because I have experienced it. My suggestion is to arrange the immediate work and family life first, and do some short-distance riding when you have time, so that you can warm up for the future electric car trip. Many working people take advantage of fake holidays and annual leave to participate in long-distance cycling activities. You can try it if you have the chance.

    In addition, when young people travel by electric car, they can choose faster electric cars, such as power-assisted electric cars and electric motorcycles, so as to save transit time and travel expenses. Lao Su believes that the future of young people is not a dream. Where there is a will, there is a way. I will mount a long wind some day and break the heavy waves, and set my cloudy sail straight and bridge the deep, deep sea!

3. I have been riding an electric car for more than ten years, but I have been afraid to run far, fearing that I will stop eating halfway. I really want to know what difficulties I will encounter when riding an electric car for a long trip. What preparations need to be made in advance?

    There are many people riding electric cars in our country, but few people travel by electric cars. The main reason is that they lack confidence in the long-distance travel of electric cars. What difficulties will you encounter when riding an electric car? Generally speaking, it is nothing more than weather, road conditions, cars and pedestrians.

    (1) Riding is greatly influenced by the weather, and severe cold and heat, wind, sand, rain and snow are hardships for cars and cyclists. But if you choose the right season to travel, the weather will bring much less trouble.

    (2) When riding outside, you may encounter bad road conditions and test your endurance and adaptability. Therefore, it is necessary to do your homework before going out, especially to know the latest road information of the route and choose a better road.

    (3) Problems of one kind or another will also occur during long-distance riding. It is very important to choose the right mount. Paying attention to daily maintenance inspection can reduce many hidden dangers.

    (4) The cyclist’s physical health and stamina determine how far you can travel by electric car. There are indeed many people who quit halfway because of physical discomfort. Physical fitness, skills and mental exercise are the basis of traveling by electric car. Of course, personal family and economic conditions are also important.

    Of course, the above four concerns are not superfluous. These are all part of riding life. Knowing its difficulties and moving forward persistently may be the charm of electric vehicles’ long journey. With the growth of riding experience, these difficulties are no longer obstacles on the road, so you can fully enjoy the fun of electric car travel. As for the specific preparations for riding an electric car, please refer to the introduction at the back of this post.

4. The old gentleman is used to seeing the scenery alone, and riding alone is not afraid of loneliness and homesickness? Traveling is not the best way to do scientific research alone. Don’t you want to have a playmate?

    I basically travel by myself, and seldom ride in company. Because a person’s way of traveling has the greatest freedom, there is no need to discuss or compromise, so he can leave whenever he wants, and stop whenever he wants, which is closest to my dream of riding the motherland freely. Although the way of teaming up with many people can increase the riding vitality and enliven the atmosphere on the way, everyone has different personality habits and riding concepts. If they are temporarily combined together, it will inevitably lead to various contradictions and even break up in discord. My cycling route is long, and like-minded cyclists are hard to meet, so I can only go as far as I can. On the 317 and 318 roads, I have made friends with old, middle-aged and young cyclists and walked together for a long or short journey. The premise is that we must give in to each other and give up many of our own ideas. In addition, when many people are together and charging together, they may encounter trouble in the sections with poor power supply conditions.

    Riding alone will inevitably make you feel a little lonely and homesick. On my way to the base camp in 2017, I passed the airport and saw the plane take off and land. I was sad for a while and had the idea of going home. I talked to my relatives and friends at night, and they all encouraged me to go on. The next morning the sun was shining and I was in a good mood. Instantly put together a few words:

            When the sun sets, you can see the end of the world, the tired birds return to their nests, and the wanderers are homesick.

            The sun rises, I want to ride my dream in poverty, get back on the pommel horse and point my sword at Mount Everest.

    This is indeed the feeling at that time. I wrote it down in one go, and I have no such inspiration since.

    In short, a person can ride as he pleases, and it is relatively easy to charge an electric car. If you don’t have the right teammates to walk with you on the road, and you are unwilling to be lonely, then put yourself in another’s shoes and adjust your mentality. In today’s noisy world, emptiness has become a scarce resource. It’s lucky to ride on a road with few cars and few people, or even enjoy the silence of nature alone, and cherish it!

5, netizens’ expectations for electric car travel and comments from Lao Su

Riding a small tram all over the country, I really admire it! This is our common people’s yearning for a happy life, the happy life of a small tram!

    Lao Su’s comments: It is my dream for many years to ride the motherland freely. Traveling with electric cars of ordinary people is much more labor-saving than riding bicycles and hiking. I am full of happiness and on the road.

Being able to ride an electric car through the north and south of the Yangtze River is really a happy life. Brother, the most intimate and grounded trip, has no luxury equipment and no rhetoric. Simple and unpretentious, through thick and thin, I have no struggle with the world, and I have visited China all over.

    Lao Su comments: Thank you for your praise! Riding the motherland freely with the most common electric car is my Chinese dream. Only when the civilian electric car travels will more people participate.

Your electric car trip is great! It broke the popular concept that electric bicycles can’t run long distances, and gave the old men and donkeys confidence. When they can’t ride bicycles, electric bicycles also have some fun.

    Lao Su comments: It is not difficult for electric bicycles to run long distances, and cars are not the most important. In my opinion, the key point is that people are not confident and prepared enough to travel by electric car. If you have a full understanding of the car condition and road conditions, and make a reasonable riding plan step by step, you can gradually drift away. If my electric car trip can give confidence to the old donkeys, the hardships of riding for ten years will be worth it.

When I was young, I did it for myself. When I was middle-aged, I did it for my family. Now I have to do it for myself. Generally speaking, the whole life is to give birth to our land and raise us! When you are old, you should go around this place under your feet! The old man said that everyone has a heroic dream. This is your dream! Look forward! Go further!

    Lao Su comments: Thank you for your blessing! Although happiness comes a little late, electric bicycles can help me realize my dream of cycling in my old age and frailty, and I am fortunate in my life.

Your electric car trip is wonderful, and you enjoy the journey of traveling around China. This is also my dream. I hope Niu Ge can organize a group to ride more places.

    Lao Su’s comments: Electric vehicles have become very popular in China. I think it is the most suitable travel tool for electric vehicle enthusiasts. Anyone who is interested in electric vehicles can participate in electric vehicle travel. I don’t have the energy to ride in a group, so I’d better ride along the road.

6, electric car travel under the epidemic situation

    In the last two years, the sudden epidemic has greatly troubled electric vehicle travel.

    First of all, the uncertainty of the epidemic will affect people’s confidence in traveling and weaken their desire to travel by electric vehicles. Because it is impossible to predict the whereabouts of the epidemic, many riders’ original plans for electric vehicles have been pushed back and forth, and finally they have to run aground.

    Secondly, the development of the epidemic will affect the implementation of the cycling plan. Even if you are already riding on the road, you may passively change some paths to get to the end. In 2021, Laosu originally planned to cross the sea and go to the northeast to see the black water. On the way, due to the epidemic in Bayuquan, it was changed to the north. As a result, only the water was seen, but the scenery of Changbai Mountain was not seen.

    Thirdly, some epidemic prevention measures will affect the riding mood and reduce the fun of electric car travel. For example, some scenic spots and museums have closed their doors to avoid crowds, and the station, airport and hotel have stricter management measures for passengers, so my free riding is becoming more and more uncomfortable. The decline in the pleasure of traveling will make people think about whether to continue riding.

    However, due to the recession and depression of the industry, hotels and restaurants attract customers in various ways. At this time, cyclists who travel enjoy many discounts. The direct benefit is to save accommodation expenses and reduce the cost of electric car travel.

    In the face of such an epidemic environment, as a cyclist, we should take the overall situation into consideration, and personal inconvenience should not affect the stability of the overall epidemic prevention. We should consciously abide by the relevant regulations on epidemic prevention and carry out cycling activities in areas where conditions permit. The bottom line is not to add chaos to the country. Personally, I think that, generally speaking, except for the western region where people are less mobile, the riding risk caused by the epidemic will be less, and some long-distance trips can be made, the rest of the central and eastern regions should make arrangements for short-distance riding, and in case of an emergency, they can also return to their original residence quickly to avoid risks. Good luck to everyone!


Second, the choice and configuration of electric vehicles: what suits you is the best.

    Electric vehicles are the most basic equipment for travel. It is beyond reproach to choose a car that suits your travel needs, spend money on it, and adhere to the high and low standards or the requirements of Yan Kuan. The electric cars in the specialty store are dazzling, each with its own characteristics. How to choose and configure an electric car that can meet the travel needs? Lao Su had practical experience in buying and using four electric vehicles, and his experience was that he didn’t want the best, but wanted the right one.

7. Ask the landlord: There are many kinds of electric cars running on the road at present. Can they all be used for long-distance travel?

    As its name implies, electric vehicles are powered by electricity, and two-wheeled electric vehicles can be divided into electric bicycles and electric motorcycles. Electric bicycles can be pedaled or driven by pure electricity, which has the advantages of portability, flexibility, economy and easy riding. Its limitations are low power, low load and short continuous stroke. Among them, these characteristics of folding electric bicycles are more remarkable. Power-assisted electric bicycle has a similar operation mode to ordinary bicycle. The current supply is controlled by the riding force of people, and the combination of manpower and electricity makes riding feel relaxed and saves electricity, but it requires the rider to have good physical fitness. Electric motorcycles are characterized by novel shape, higher power, faster speed, more complete functions and more comfort, but the price will be more expensive. And belongs to the management of motorcycle category.

    Lack of endurance is a common problem of electric vehicles. The power demand of the above types of electric vehicles can be met by simply taking one or two more batteries. I ran more than 6,000 kilometers in seven provinces and regions in the south by riding a folding electric bicycle that I used to go shopping everyday, and more than 16,000 kilometers in 20 provinces and regions in the central and eastern regions by riding an electric bicycle with pedal function. Both of these two cars were originally produced in batches, indicating that the quality of ordinary electric vehicles is reliable enough and can be used for long-distance riding.

8. I am going to start with an electric car for long-distance travel. I have seen the introduction of some brands of electric cars and feel that their performance and quality are good, but I don’t know where to start with which one to choose. Ask brother, how to choose a suitable electric car?

    How to choose a suitable electric car? It’s a matter of opinion. Each kind of car has its own length, which can be chosen according to individual needs and specific circumstances. The key is to meet the actual needs of your riding, and the car that suits you is the best. If you have motorcycle riding experience and are rich in silver, an electric motorcycle with fast speed and complete functions is a better choice, which will make your trip more comfortable. If you have good physical fitness and like to enjoy riding, the booster electric bicycle can meet your needs, and its price also has the choice of high, medium and low, depending on your purse. Ordinary electric bicycles and portable electric motorcycles are generally economical. Although they are low in power and slow in speed, they can be used for long-distance travel and daily life at ordinary times. Those with little money can be preferred. If you want to travel by combining riding and riding, a light and flexible foldable electric bicycle is the most suitable.

    At present, some cities implement the management mode of registration and licensing of electric vehicles, and generally set some specific standards for licensed electric vehicles. The new national standard in 2019 stipulates that electric bicycles are non-motor vehicles, and the maximum speed should not exceed 25 kilometers. Only 48V, 400W electric vehicles with pedal function can legally go on the road. If you want to meet the needs of travel and peacetime use, you must meet the requirements of these regulations.

    As far as my personal experience is concerned, the difficulty in choosing an electric car lies in how to take into account various needs. For example, if you want to have a long battery life, you need to bring more batteries, increase your weight, increase your expenses, etc. Therefore, you should proceed from your own needs and possibilities, taking into account various factors that affect each other, and make choices in a certain order. I have used four electric cars for ten years, and the last three are all bought for long-distance travel. The order of Lao Su’s choice depends on whether the body structure is solid and the size is appropriate; Secondly, understand the configuration of the motor battery; Then check whether the control is flexible and convenient and try to ride; Finally, negotiate the price or modification requirements.

    No matter which kind of electric car you choose, the reliability of long-distance travel vehicles must be put in the first place, and problems on the way are the most worrying. I have also experienced the troubles of folding shelves and broken strips on the way. In fact, these problems can be avoided if the reliability of the car structure is taken into account when choosing a car, such as choosing shelves integrated with the car body and tires without straps. Generally speaking, the selection of more mature technology or parts also increases the reliability of use. People usually trust some electric car brands, but they are optimistic that the manufacturers behind them have better production conditions and better products and maintenance services. It is suspected of advertising in this respect, so it is better not to recommend it. As for what style to choose, it is usually decided by personal preference, so there is no need to say more.

9. I can see from the cycling post that you have been riding a small electric car all the time. Why don’t you choose a bigger and more comfortable electric car?

    Choosing a mount must proceed from your own reality, and you can’t copy textbooks or other people’s practices. The four cars I have used for travel are all small electric cars, and the bigger and more comfortable electric motorcycles have never entered the eye, and the reasons are not complicated. The starting point for me to choose a small electric car is to solve the problem on my own on a long distance, and the small and light electric car is more convenient to handle. The simplest consideration is that it is easy to get up after falling off the car. Second, the car is small and unobtrusive, which is suitable for my low-key riding mentality. In jindian, the city where motorcycles are banned, it is easy for small electric cars to be lenient when they meet traffic police. Especially when staying in hotels, it is basically allowed to push the room, which reduces the trouble of baggage loading and unloading and charging. Third, according to the current traffic regulations, electric motorcycles that exceed the national standards for electric vehicles should be included in the scope of motor vehicle management and have special requirements for drivers. I don’t have this condition. Fourth, the elevator in my house is very small, and the maximum length is only 1.5 meters. If the electric car is to be placed at home, this length becomes a hard constraint, and the car can only be selected within this range. On the other hand, a small electric car is cheaper than a large electric motorcycle and saves electricity. Reducing travel costs is also an important consideration in car selection.

    A netizen commented: choosing a small battery does have a unique advantage. Even cities with power cuts can be unimpeded, and cars that meet the standards don’t have to worry about being fined or something; If there is no electricity, you can ride for a short time without the painful implementation of the scooter; When you encounter a big pit, you can also get on the bus and cross it. The capacity is very high. The disadvantage is that the shock absorption is too poor, and the hands and buttocks on the bad road hurt. It is recommended to focus on improving shock absorption and changing to high-grade seats. In addition, the speed is slow, it takes time to ride, and the amount of daily trips is less. This opinion is still relatively pertinent.

10. The landlord rode different cars in Tibet twice. The first time was an electric bicycle with pedal assistance, and the second time was a small electric motorcycle without pedal. What is the difference between these two cars? Is it better to use a small electric motorcycle? Excuse me, uncle, is this car suitable for girls to ride because of its climbing and shock absorption?

    The first Niri electric bicycle I rode in Tibet can be pedal-assisted, and the front and rear drive motors are both 48V250W. The second pure electric blue Emma electric motorcycle has a higher power, with a front drive of 250W and a rear drive of 350W W. Both cars can stand the test of entering Tibet, and there are no problems with the motor, battery and controller, and the quality is up to standard. From the personal riding experience, the first electric bicycle is relatively light and adaptable to various road conditions. Pedaling can not only help, but also achieve the purpose of exercise. The second pure electric small electric motorcycle has better power, relatively easy and comfortable riding, slightly faster speed and power consumption, and the measured data is about +10%. Due to the lack of pedal system, the faults are correspondingly reduced, but the adaptability to complex road conditions is weak and the passing capacity is insufficient.

    In the second part of my ten-year cycling summary, there is a comparison of the use effects of these two electric vehicles. Please look back. They all ran past, and Wanshui Qian Shan came, and climbing was a cinch. Among them, the pure electric small electric motorcycle once ran 700 kilometers across the northern Sichuan-Tibet line with a single motor of 350W. The shock absorber and seat bag are better. Because the car is smaller, it is more suitable for girls to ride.

11. Take a long trip with your original Niri electric bicycle. If it is a 350W motor, can it be eaten if you add a pedal when going uphill? I mainly consider that it is not good to add a precursor. There is no such shop in a place like ours, and my hands-on ability is not good. It doesn’t matter if the speed is slower, because I’m thinking about buying it for my wife. I still ride a bike. She’s not physically strong, so I’ll ride an electric one and go with her.

    Long-distance travel can be accompanied by husband and wife, which is enviable. Please send your blessings first!

    From the riding practice, I used the 250W Nippon Electric Bicycle to run more than 16,000 kilometers in 20 provinces, municipalities and autonomous regions in the eastern and central parts of China in 2013-2014. The motor, battery and controller of the bicycle are well managed without any problems, and the quality and performance of the whole vehicle can be trusted.

    Therefore, personally, I think that the original Nippon car, if it is a 350W motor, is much more powerful than the bicycle you ride. When stepping uphill, cyclists with average physical fitness can walk in most areas except Tibet and western Sichuan, while those with better physical fitness can ride into Tibet. But both of them must pay attention to let the motor rest and cool down when climbing. On some steep sections, it is inevitable to push the cart down, so take a rest in the middle of riding.

12. My existing electric car uses lead-acid batteries. According to the online inquiry, it is said that only lithium batteries can be used for long-distance running. I want to hear your opinion. Can lead-acid batteries for electric vehicles run long distances?

    Lead-acid batteries are the most widely used batteries in electric vehicles at present. It is economical, safe and reliable. The disadvantage is that the specific capacity is small, that is, under the same capacity, the weight and volume of the battery are large. Lithium batteries are small in size, light in weight and flexible in use, but they are expensive. Generally speaking, long-distance riding is a long way, and there are many luggage items to take, so it is more reasonable to choose a lithium battery with small volume and light weight. Of course, such a configuration will definitely increase a lot of expenses.

    As far as your situation is concerned, if you use the existing lead-acid battery electric car to travel far, I think it is also possible. I used two electric bicycles with lead-acid batteries more than ten years ago. One of them is a 36V10A dual battery, which runs 60 kilometers with pure electric energy and can be pedaled. Later, the same battery was added and tied to the column of the car. It can run for 90 kilometers and it feels good to ride. I just had to go to work at that time, so I couldn’t go further because of limited time. When you travel with your existing car, there are at least two advantages, besides the inevitable cumbersome trouble of the car. One is to save a sum of money, and the other is to be familiar with the car and handle it easily.

    Before departure, you should configure the battery according to your expected endurance, and the old battery can also be used, but you should carry out a load test under the condition of simulated travel to check whether the vehicle and battery meet the requirements. The long-distance travel of electric vehicles is not only a simple superposition of daily trips, but also some new problems that did not occur in the long journey of old vehicles, such as the wear and failure of some parts, etc., so we should pay attention to observing and checking the condition of vehicles and follow up in time to solve them.

13, Su Lao rode a small electric donkey and enjoyed the great rivers and mountains! I also have this dream, and I have tried it. I ran for 90 kilometers with two sets of 60V20AH lead-acid batteries, and there was no electricity. From this point of view, lithium batteries are still powerful, lead-acid batteries are too bulky, and most of the energy is spent on overcoming their own weight. However, I heard that lithium batteries are too expensive on the one hand, and their safety performance is not comparable to that of lead-acid batteries. I wonder if this is the case?

    Generally speaking, long-distance riding is a long way, and there are many luggage items to take. It is more reasonable to choose a small and light lithium battery, which will certainly increase the cost. According to the current price, two sets of 60V20AH lithium batteries will cost about 3,000 yuan. If the economic conditions do not allow, I suggest that we should continue to use the original two sets of lead-acid batteries, and it is not bad to run for 90 kilometers. As long as it is charged for 1-2 hours on the way, it is not a problem to travel 100 kilometers a day, which can meet the general requirements of electric vehicle travel.

    In terms of safety performance, I can only make some practical comparisons. I used lead-acid batteries for more than ten years before and lithium batteries for the next ten years. They were all used and charged normally, and there was never any problem. As for how to say it in theory, I don’t quite understand it. You can consult the related posts in the forum and ask other netizens. thank you

14. Isn’t it better to bring more batteries on the road? I think the batteries used by the landlord are all 48V20A, but sometimes they bring three, and sometimes they bring four or two. This arrangement makes people puzzled.

    Increasing battery capacity is the main way to improve the endurance of electric vehicles, and more batteries can run farther on the road. However, the weight of the battery itself will also increase and become the total weight burden of the car. Therefore, the battery configuration should be adapted to the expected endurance, not the more the better.

    My practice is to do a riding test according to the load standard of travel first, and get the actual battery life data of each battery (new or old). Then, according to the endurance requirements of the two farthest charging locations in the cycling plan, and then multiplied by a certain insurance factor, the endurance mileage required for this long-distance cycling is calculated. Finally, by comparing the cruising range with the actual cruising data of each battery, we can determine how many batteries we need to bring, or even which batteries we need to bring. For example, the two farthest charging places are 118 kilometers from Rumei Town to Zuogong County. After a load-bearing riding test on a mountain road with general difficulty, my 48V20A battery runs 60 kilometers with pure electric energy. Considering that this trip will cross Jueba Mountain and Dongda Mountain, and the total climbing height is about 3000 meters, it is necessary to increase the safety factor by 50%, so at least three batteries should be brought.

    All the batteries I use have a capacity of 20A, and each battery weighs about 5 kg. In 2020, if you want to go to Tibet, the road is dangerous and difficult to charge. It is guaranteed to last for 240 kilometers with 4 batteries. In 2021, it is not difficult to go to Mohe in the north. It is enough to travel 100 kilometers a day with 2 batteries. This arrangement can reduce the weight of luggage.

15, the top LS electric car goes to Tibet. When the great gods in some electric vehicle forums are still arguing about what kind of car to ride in Tibet, what kind of configuration and how many ah batteries to bring, you have set an example for them with practical actions. Like one! Also curious to ask: 48V60ah lithium battery is also very heavy, how do you carry it? What is the capacity and size of the battery on the frame?

    Long-distance travel needs to bring more batteries. How to place the batteries beyond the original configuration? We should proceed from the reality of different models and take safety and convenience as the principle. Such as electric motorcycles, it is best to use the original battery compartment, or place it after making appropriate modifications, so as to maintain the beauty of the original model and be the safest and most reliable.

    There is not much space available for electric bicycles, so it is better to use external fixation. Usually, the battery is fixed on the shelf of the car or on the inclined tube or riser of the car body with a bag of suitable size. Some put the battery in the backpack and connect the power supply when using it, which is also one of the methods. I have used both methods, and I feel that the former method is safer and more convenient. Although it is simple to put in a backpack, it is not convenient enough to use and is not conducive to battery heat dissipation.

    As for the practice that some people leave their batteries in the car at will and tie them with ropes before starting, I think it is not safe enough, and it is easy to be scattered during long-distance riding, especially on bumpy roads, which is not desirable.

    Specifically, I have equipped three 48V 20A lithium batteries, with a total capacity of 60ah, each with a size of 23x17x8.5cm and a weight of about 5kg. The battery seen on the frame is one of them, but it has become larger after being wrapped with foam board to enhance waterproof and stability. The other two pieces are packed in special boxes and put on the rear rack in the middle of the backpack. All three batteries are movable and can be moved into the room for charging.

16, brother, the biggest expense on the road is accommodation. You can make a tricycle with solar panels, and you can eat and live in the car. Isn’t it much cheaper?

    Solar electric car is a very creative new thing, and some electric car enthusiasts have begun a bold attempt. 8264.com also published their innovative cycling diaries. Thank you for your advice! So far, the technology of applying solar panels to electric vehicles is not mature and the cost is too high. My opinion is:

   

    (1) Long-distance running by electric car is not the most economical way to travel. From the point of view of convenience and labor saving, it is more reasonable to charge when staying.

    (2) Don’t expect too much to supply power to the solar panels of tricycles. It is good to provide 1/3 of the power, mainly relying on batteries and conventional charging.

    (3) The dead weight, power consumption and failure rate of tricycles are higher than those of two-wheeled vehicles. Solar electric vehicles have higher requirements for cyclists in electronic technology.

    (4) The passage of solar-powered tricycles in some sections is restricted.

    Therefore, Lao Su will not choose a tricycle with solar panels for his trip.

17. I didn’t see a spare tire hanging behind the car on this trip. Is it not necessary to bring a spare tire with anti-puncture? Do you think it is reliable to prevent puncture after your long-distance travel experience of electric vehicles over the years?

    Tire puncture is a common fault in long-distance travel of electric vehicles. Especially in Xinjiang, where there are many heavy-duty trucks, it is very troublesome to stop and repair tires frequently. In order to reduce or avoid the risk of puncture, I have tried to use solid tires, but riding feels uncomfortable. Only by using vacuum tires can we get better results. Because the front wheel can’t be equipped with vacuum tires, we can only choose real king kong tires, while the rear wheel uses brand-reinforced vacuum tires. In this way, the problem of puncture on the road that has been bothering for many years has basically been solved.

    The advantage of using tire puncture prevention is that it can reduce the failure of small iron wire puncture. Touch the puncture-proof surface with your fingers, and there will be some small residual iron wires, but the wheels will not leak. But it can’t resist sharp objects such as larger nails. When I was riding the Everest Line in 2017, I was punctured by a spike, so I had to return it and repair it before continuing my journey.

    As for whether to bring a spare tire? I will consider two points: first, the road conditions are good or bad, and second, the supply of spare parts is difficult. You don’t have to bring the conditions, but you have to bring them. That’s why you see the spare tire hanging or not hanging behind the car.

18. The electric vehicles mass-produced by manufacturers have already met the national standards. Why should they be modified?

    In the related websites of electric vehicles, there are many posts about the modification of electric vehicles, and the discussion is heated. From a practical point of view, businesses that operate electric vehicle maintenance services are also prosperous in refitting electric vehicles. Not to mention those players who think that electric cars are not only for riding, but also for tossing for fun.

    According to the national regulations, the speed, vehicle weight, motor power and voltage of electric bicycles managed by non-motor vehicles should not exceed 25km/h and 55kg, respectively. This standard is feasible for electric vehicles with pedal riding ability to travel in most parts of China. In 2012-2014, Lao Su traveled more than 23,000 kilometers in 22 provinces in eastern and central China by electric vehicles below this standard.

    However, for riding on the long slopes of the Qinghai-Tibet Plateau and the steep mountain roads of the Yunnan-Guizhou Plateau, the motor power of 400W is definitely stressful, and it is difficult to meet the requirements of long-distance travel. Therefore, from the actual needs of long-distance travel of electric vehicles, it is understandable to increase the speed and power, otherwise it will be difficult for electric vehicles to travel long distances and enter Tibet and Xinjiang. Even if the electric vehicle meets the national standards, it is necessary to modify some components, such as lighting, seat bag, stereo, etc., from the perspective of safety and comfort during long-distance travel. The improvement of the body appearance may also highlight the rider’s personality. Therefore, the modification of electric vehicles will be enjoyable.

19. How was your electric car modified? What aspects should be paid attention to when refitting electric vehicles? Where can I refit an electric car?

    In the first three years of long-distance cycling, I used the original electric bicycles mass-produced by manufacturers, which greatly enhanced my confidence in riding electric bicycles to visit the great rivers and mountains of the motherland. But at the same time, I also personally experienced that electric vehicles are limited by battery capacity, and the freedom of riding is limited; Because the motor power is small, it is difficult to climb a mountain hundreds of meters high.

    In order to realize my dream of riding on the Qinghai-Tibet Plateau, I have made some necessary modifications to the electric bicycle that has been running for two years. The original car was equipped with 48V/250W motor, with single rear wheel drive. The power for climbing the big slope of Sichuan-Tibet railway was definitely insufficient, so the front wheel drive was added in a targeted way to improve its climbing ability. The modification does not involve the operating system of the original car, but a 48V/250W motor is newly installed on the front wheel, with its controller installed on the front column and its starting handle installed on the left. After the modification, the front and rear wheels have a set of drive systems, each using a set of batteries, which are controlled by the left and right hands respectively, and can run independently or start at the same time.

   

    The problems that should be paid attention to in refitting electric vehicles are as follows: First, the clearer the target of refitting, the better, and what to change and to what extent. Second, the simpler the modification, the better, and the less impact on the structure and operation of the original car. Third, it may take a period of adaptation to get used to its operation method after modification.

    It is not complicated to modify electric vehicles, and businesses that sell electric vehicles can generally provide maintenance services and modifications.

20, brother would like to ask, you added a front motor, is it one-drive two motors or two-drive two motors? And what are the benefits of adding precursors?

    The motivation of increasing front-wheel drive is that the original 350W rear-wheel drive has insufficient power when climbing large and long slopes. The scheme of increasing the power of front drive instead of rear drive is mainly considered from three aspects:

    First of all, I have learned from many years of riding practice that the original drive system of the car is the most reliable, and there have never been any problems with the original motors, batteries and controllers of the three small trams used for long distance. The places that are prone to failure are all from the modified part. Therefore, considering the reliability, it is not appropriate to change the original drive system easily, which is the main reason for adopting two drives and two motors.

    Secondly, the independent front wheel drive system is adopted, and the circuit is simple and clear, and the installation and maintenance are convenient.

    Third, the front and rear wheels can be driven independently, which means that with backup, the east is not bright and the west is bright, which can improve the safety factor. I was on the road twice in 2015 and 2019, and the front wheel drive failed, which was to get out of the predicament by rear wheel drive.

21, I would like to ask, how can the front and rear drives be used reasonably? Does the flat road rotate back and forth? Did you turn off the power supply of the other one during the rotation? Is it dual drive when going uphill?

    It is estimated that you have driven a dual drive, because your question is very real and contains some answers. How can the front and rear drives be used reasonably? My experience is to foster strengths and avoid weaknesses, and try to give full play to its advantages. The rear drive is the original 350W Bosch motor, which has good quality and great strength, and is stable in operation. It does most dirty work, such as walking bumpy roads and climbing hills. The front drive is a 250W high-speed motor, which saves electricity and is faster, but its strength is a little weak. It is just right to arrange it to run flat roads and good roads, and it performs better. Therefore, it is necessary to rotate back and forth according to the road conditions.

    When I rotate the motors, I don’t have the habit of turning off the power supply of the other one, and I keep a state of free switching at any time to cope with the sudden situation that may occur on the road. As for going uphill, if the slope is not big, you should use single rear drive. If you can’t get up, you should use double drive. If you encounter abnormal slope, you should come down and push the cart.

22. Excuse me: After installing the front wheel motor, can the front and rear wheels be synchronized when starting at the same time? If it is not synchronized, how do you handle it?

    The power of the front and rear wheel motors of my car is different, and the speed of the front and rear wheels will be different when starting, which means that the speed is not synchronous. It will form resistance, leading to increased power loss of front and rear wheels. Synchronization technology can solve this problem pertinently, but it is costly and difficult.

    The front and rear wheels of my car have a set of independent drive systems (motor, battery, controller), which are controlled by the left and right hands respectively, and can run separately or start at the same time. At the same time, the rotation speed of the front and rear wheels is not necessarily synchronous when starting, but it is not a big problem, because the rotation of the front and rear motors can be sensed by holding the knobs with both hands. If the double motors run briskly and there is no noise, it indicates that the front and rear wheel speeds are synchronous or relatively synchronous, and no adjustment is needed at this time. If the operation of the double motors is blocked, it will produce some noises and vibrations, which indicates that the speed of the front and rear wheels is not synchronized enough. At this time, it is necessary to slightly adjust the power intake of the left handle or the right handle, so that the motors can eliminate noises and vibrations and return to light operation, which indicates that they have returned to a synchronous or relatively synchronous state. This ability to judge and adjust requires some practical experience.


Third, the preparation before the electric car travels: know yourself and know yourself, and plan ahead.

    Electric cars travel long distances, the road is long and wild, and there are many unknowns along the way. The problem to be faced is more complicated than riding a bicycle. The car condition, road conditions, weather and accommodation conditions are all restricted. It is not easy to leave when you say it. The more prepared you are before you leave, the greater the possibility of success. Sun Tzu said in the Art of War, "Know yourself and know yourself, and you will be invincible; Knowing each other and knowing each other, one wins and one loses; I don’t know each other, I don’t know my friends, and every battle will be ruined. " Do all the preparatory work before going out, know yourself and yourself, and plan ahead, so as to improve the success rate of riding and be invincible.

23. Why do you want to carry out vehicle testing? How to test the vehicle?

    How to know yourself when riding an electric vehicle? From the main requirements, the focus of knowing each other is to fully understand and master all kinds of information on the road. The key of confidant is to be familiar with the performance characteristics of the car and know what the car can and can’t do. Among them, vehicle testing is the basic method to understand the car. Pay attention to three points in the test process:

    (1) The car to be tested should ride on a mountain road with general difficulty according to the daily travel arrangement and luggage load, and it is generally appropriate to ride for about 4-5 days and 500 kilometers. In this way, you can have personal experience of loading and unloading luggage, choosing accommodation and charging, and the obtained data and experience are more practical and useful.

    (2) There are three aspects in the test. One is the dynamic situation of the car, which mainly depends on its speed and climbing ability. The second is the handling of the whole vehicle, such as steering, braking and stability. The third is the adaptability of cyclists to walking for 100 kilometers in a row.

    (3) The daily trip record should be made in the test, especially the kilometers when climbing the hill and changing the battery. After recording for many times, it will be sorted out, and some regularity of power consumption will be gradually discovered, so as to be aware of it.

    If you can really be a "bosom friend", according to Sun Tzu’s saying, "Know the enemy without knowing the other, one wins and one loses", you have already succeeded half the battle. Every time Lao Su travels with a new car, he goes through hundreds of kilometers of riding tests. Before getting on the 318 line, I specially selected lakes with similar road conditions as test sites to test the adaptability of the car and myself riding on the plateau, laying a solid foundation for riding electric cars into Tibet in the future.

24. The places my brother goes every year are wonderful and desirable. How do you make a cycling plan?

    As the saying goes, sharpening a knife does not miss the woodcutter. Spending some time collecting relevant information before going out is the basis for making a cycling plan. It is necessary to know as much as possible about the latest situation of road conditions, weather, accommodation and power supply in the planned trip, and pay special attention to the altitude changes and sudden disasters in the route. Most of this information can be found on the Internet. The latest information should pay special attention to cyclists who have just come from this section, and its information is especially timely, accurate and reliable.

    Regarding cycling routes, there are many recommendations on the Internet, such as the top ten gold cycling routes, which can be used as a reference. But before and after the starting point, we also need to supplement and improve ourselves. Lao Su yearns for free riding and likes to be arranged by his own will. The usual practice is to connect the most wanted places such as Huizhou, Hukou and other places as nodes, and then consider the rationality of the trip in combination with the supply conditions along the route and the endurance of the car. Finally, it will become a cycling route with a little adjustment.

    Riding an electric car should be within the cruising range and know the car condition and road conditions. It should be a basic common sense of electric car travel. If you are not fully prepared, don’t go where there is no electricity or no people. When riding in Xinjiang in 2018, it was originally planned to go north to Altay by National Highway 216. However, considering that there is no guarantee for accommodation and charging in the Gobi Desert, which is more than 280 kilometers from Jimsar to Qia Courtou Town, it was changed to Shihezi and headed west.

    There are many unpredictable factors for long-distance riding, such as car condition, road condition, weather and accommodation conditions. It is not easy to leave when you say it. The more prepared, the more likely you are to succeed. For example, climbing has a great influence on the endurance of electric vehicles, so pay special attention to the height change in road conditions when doing homework. In this regard, Google Satellite Maps is a good helper. There are two roads from Hami City to Barkun County to cross the Tianshan Mountains. The right line takes Provincial Highway 303 and the left line passes through Tianshan Temple. Navigation shows that the right lane is 10 kilometers longer than the left lane. However, according to the image analysis of satellite map, the right pass is about 2200 meters above sea level, and the left pass is about 2700 meters above sea level. Everyone knows the pain of climbing, so it is wiser to choose the right line.

    A good riding plan should be realistic and flexible. For electric car travel, the accommodation is not only a resting place for cyclists, but also undertakes the task of charging. According to the estimated power consumption and power supply during the trip, arrange the accommodation and charging places, and have feasible alternatives. The difficulties that may occur in key sections need to be followed up at any time and pre-judged in time. Riding the northern Sichuan-Tibet line in 2019, I originally planned to stay in Jueen Township, but when I arrived, I learned that all the hotels were closed, and the original owners had gone to dig Cordyceps. This situation was unexpected, so I had no choice but to make changes. Fortunately, time and electricity were still relatively sufficient, so I moved on to Dingqing County. Therefore, the choice of accommodation on the way also needs multiple alternative points, which makes the plan flexible. If you encounter a road section that exceeds the capacity to continue, you need to replenish electricity on the way, you must make a specific place and time arrangement for charging, so as not to be in a hurry when there is no electricity on the road.

    As for some long routes, they can also be completed in stages. For example, I took the Silk Road to Xinjiang in 2018, and rode the New Tibet Line to Kashgar in 2019. In fact, it is also a 15,000-kilometer-long Kashgar-Guangzhou Ring Road, but its line is too long and it has been completed in two years. This can reduce the route difficulty, reduce the riding pressure and improve the success probability.

(Author: suzhaoxin)

11 signs before sudden death, knowing can save lives!

Combine work and rest, take good care of yourself!

Today, Xiaobian’s Weibo was screened by a heartbreaking news-on November 27th, Taiwan Province artist Godfrey Tsao died unfortunately while recording a program, and the hospital finally declared him as a sudden cardiac death.

In recent years, the incidence of sudden death is getting higher and higher, and every time I hear such news, people can’t help sighing. In fact, although the sudden death happened suddenly, there are traces to follow.

If you are engaged in these industries, please pay attention to the combination of work and rest and take good care of yourself!

Tips: TOP7, the industry most prone to sudden death (according to network statistics)

● Shop owner (I can’t wait for you 24 hours)

● IT Cheng Xuyuan (never leaving the seat for a day, and the spirit is highly nervous)

● New media operation (366 working days, Xiaobian swallowed)

● Advertiser (overtime madman)

● Doctor (day shift and night shift)

● Front-line workers (physically tired and under great economic pressure)

● Athletes (overload exercise)

……

one

Ten "bad habits" are easy to cause sudden death.

No matter how many you win, please change it in time!

1. Excessive work pressure

Mental stress is something that can’t be seen or touched, and drugs can’t relieve it. Most young patients with myocardial infarction have been engaged in high-intensity and high-load work for a long time, and their mental stress is high, which makes the catecholamine in the blood increase continuously, causing local vascular plaque rupture and thrombosis. Like a bow, the bowstring is taut for a long time, and one day it will break with a bang …

Step 2 be sedentary

Sedentary for a long time will slow down the metabolic rate of human body, increase blood viscosity, slow down blood circulation, and make it difficult for blood to return to the heart. All these changes may induce thrombosis and increase the risk of cardiovascular diseases such as myocardial infarction and pulmonary embolism.

3. Exercise vigorously in foggy days.

Exercise in foggy days, or running or cycling on roads with dense vehicles, will inhale a lot of PM2.5 and exhaust gas, coupled with strenuous exercise of the body, which will easily lead to insufficient blood supply to the heart and induce a heart attack. Especially the high-risk group of cardiovascular disease, it is best to exercise in a quiet environment and fresh air area under the guidance of a doctor.

4. Too hard when defecating

When defecating, sudden exertion will make blood pressure rise rapidly, and the pressure on the heart will also increase sharply. Especially people with diabetes, hypertension and a history of heart disease should avoid sudden exertion during defecation to reduce accidents.

5. Heavy taste (too salty and too sweet)

Excessive taste will raise blood pressure, at the same time, it will also raise plasma cholesterol and promote the formation of atherosclerosis.

6. Depression, long-term lack of sleep

Bad mood and insomnia often coexist. Bad mood is the enemy of the heart. People who are depressed or anxious usually have poor sleep quality, the heart can’t rest, and blood pressure and heart rate will rise, which is very unfavorable to health. Therefore, staying up late (long-term lack of sleep) is also a big accomplice to myocardial infarction. Everyone should remember that good sleep is not only a good quality of sleep, but also requires sufficient sleep time.

7. Smoking (including secondhand smoke) and drinking

Harmful components such as tar in smoke can cause vasospasm, and carbon monoxide can also reduce the oxygen carrying capacity of blood, resulting in myocardial hypoxia. Therefore, long-term smokers have a much higher risk of myocardial infarction than ordinary people.

Excessive drinking may increase the heart rate and blood pressure, and increase the burden on the heart. For people who have been drinking for a long time, alcohol will destroy the heart muscle, which will develop into heart failure over time.

8. too much sex

Moderate and pleasant sex life will make people feel comfortable, but indulgence of sexual desire is also dangerous. When over-excited, the cardiovascular system will suddenly contract and spasm, resulting in myocardial ischemia, thus inducing heart disease.

9. Overeating and not loving sports

After people eat too much, the gastrointestinal tract needs a lot of blood to digest food, so the blood flowing into the heart and brain will be greatly reduced. Therefore, for people with insufficient blood supply, a full meal can easily induce myocardial infarction and cerebral infarction. In addition, if you overeat for a long time and don’t like exercise, fat will accumulate more and more, and lipid plaques will easily form in blood vessels. If it happens to grow on cardiovascular and cerebrovascular diseases, it will be very dangerous.

10. The risk of heart disease for drug addicts is also extremely high.

two

11 signs before sudden death, be sure to pay attention!

Knowing in advance can save lives!

Tips: the precursor of myocardial infarction has four symptoms!

● Recently, frequent chest tightness suddenly appeared, and the symptoms became serious.

● Frequent palpitation (rapid heartbeat)

Low syncope lasts for a few seconds, can’t recover on its own.

● Unexplained fatigue and fatigue often occur.

Tips: Precursor of cerebral infarction, 7 sudden abnormal physical phenomena!

● Sudden dizziness in the head and unsteady walking.

Suddenly feel numb on one side of the face or hands and feet.

● Sudden blurred vision (black in front of eyes)

Sudden severe headache, or headache different from usual.

● Suddenly, the words are unclear or the mouth is skewed and drooling.

● Suddenly unable to speak or unable to understand others.

● Sudden physical weakness or ineffective activities.

Time is life! Early detection is very important, don’t regret it for life in the entanglement of going to the hospital or not. So once you find yourself or people around you have the above symptoms, remember 7 words! It is urgent to go to the hospital!

The doctor suggested

In life, we can insist on moderate aerobic exercise (jogging, swimming, etc.) at least 3-5 times a week for more than 30 minutes each time, which is conducive to maintaining normal weight and enhancing cardiopulmonary function. In terms of diet, you must be punctual for three meals and be full at 7 minutes. Don’t forget to drink plenty of water to avoid thrombosis caused by increased blood viscosity.

Source: Good Doctor Online

Editor: Fang Jialu Mao Haiping

Guess you like it

Original title: "11 signs before sudden death, knowing can save lives! 》

Price increase is the only choice! Rising tariffs have made Silicon Valley high-tech enterprises "unable to sit still"

  CCTV News:Modern industry has already formed a transnational industrial chain with a highly detailed division of labor, and any problem in this industrial chain may "affect the whole body". The so-called "301 tariff list against China" of the United States has come into effect, involving 818 products worth about $34 billion. Although this figure is not very large compared with the huge trade volume and economic aggregate between China and the United States, in the United States, the industries really affected by the tariff increase far exceed this list.

  journalistThe ball made in China looks ordinary, but its precision has reached 200 nanometers. Ball bearings are used in various machines, such as vacuum cleaners. At present, both the ball and the ball bearing are called ‘ List of 301 tariffs on China ’ Above. "

 

  American Precision Parts Company is a distributor of precision bearing parts. On July 6th, the day when the United States started the 301 tariff on China, the bearings imported by this company from China were at sea, and the goods would be subject to a 25% tariff. However, Mr. Huo, the president of the company, said that he was not in a hurry.

 

  David Huo, President of American Precision Parts CompanyIf possible, customers will look for alternative sources of parts, but many varieties will take a lot of time, because some of them are used for parts with high safety requirements, and some are used for some auto parts, which need a period of testing before application. Generally speaking, it may take four years to change suppliers. "

  The rising cost caused by tariffs affects the downstream of the industrial chain.

  David Huo said that as a distributor, the business volume of precision parts companies will not be greatly affected in the short term. For his customers, at present, there is basically no choice but to continue to use China accessories. If they don’t want to stop work, they can only pay the tariffs first and start to apply for tariff exemption from the US government. The cost increase brought by tariffs will be continuously transmitted down the industrial chain, and the bearing is small, but the impact will be very large.

  David Huo, President of American Precision Parts Company"Power tools, agricultural equipment, mining equipment, all kinds of consumer products, from cars to dishwashers, and even computer hard disks have one or two bearings as long as they move."

 

  At present, the main products that the United States imposes tariffs on China are industrial products, and bearings are only one of them. Although consumers do not buy them directly, the number of products affected in the end may be ten times or a hundred times more than those on the list. Even many high-tech enterprises in Silicon Valley in the United States can’t sit still.

 

  Mourinho, Vice President of Technology and Innovation of Silicon Valley Leaders Organization: "Tariffs can’t solve any problems, but will only make it harder to do business here in Silicon Valley. As I said before, it will affect the global industrial chain and the price of accessories entering the United States."

  Affected enterprises: price increase will be the only choice.

 

  For some multinational companies, the most direct and simple way to deal with the tariff increase of accessories entering the United States is to put the finished products originally prepared for production in the United States to other countries for production, which will reduce employment in the United States; If the United States further expands the tariff list, whether it is multinational companies or small and medium-sized enterprises, price increases will be their only choice.

  David Huo, President of American Precision Parts Company: "Price increase is the only choice. To produce the same bearings as China in the United States, the increased cost is far more than 25%."

 

  In January 2018, the US government announced that it would impose a 20% tariff on imported washing machines to protect domestic industries. According to the statistics of the US Department of Labor, in the first quarter of this year, the prices of washing machines, including American domestic brands, collectively jumped by 17%. The current large-scale tariff increase measures in the United States basically took effect in June and July. Although there is a certain lag effect, the impact on consumers is coming soon.

  journalist: "The US tariff list for China deliberately removes end consumer products such as televisions, but only one bearing exists in almost all household products around me. The added cost will inevitably be reflected in these daily necessities, and the final bill will only be paid by American consumers."

Original ranking for the top 10 online dramas in 2022: "Punishing Crime" is at the bottom, and "Hunting Crime Picture Book" is only the seventh.

Looking back, from the end of each year to the beginning of the following year, there are really big dramas.

Like last year.

Only eight sets of CCTV have adopted the mode of "double drama overlapping broadcast" in prime time, and the spy war drama "Opponent" and the big IP drama "Knife in the Snow" have joined hands to offer an audio-visual feast for the audience.

Then, a set of CCTV also played the opening drama "In the World".

Not only has it received rave reviews, but it has also made a good start for the domestic drama market this year. But who would have thought that with the succession of Gentlemen in the East Eighth District and Brave and Fearless, the strong star drama in the past actually showed a trend of continuous decline in word of mouth.

Correspondingly, there is a surge in the number of online dramas.

Compared with Shangxing drama, the looser scale of online drama leads to more diversified themes and no special requirements for the schedule. In addition, the audience’s attention to online drama has greatly increased, making it grow into one of the most important components of the film and television drama market.

Next, I will bring you the best 10 domestic online dramas this year. The ranking refers to scores, ratings, themes, audience reputation, attention and many other factors. I hope to be a little reference for you when chasing dramas.

TOP10, Penalty Score: 7.0

Only from the actor configuration, assembled Li Youbin, Cheng Yu, Johnny, Yang Shining, Wang Yang and other people’s "Penalty Crime", which is completely the configuration of the star drama, but since the webcast was chosen, the natural drama side also has its own considerations.

The story of the play takes place in a place called Changwu.

Here, the Zhao family, headed by Zhao Xiaosheng, monopolized many industries such as mining and real estate by various illegal means, and the public officials who were wooed into the water were enough to scrape together a playing card.

This "Punishment for Crime" takes the confrontation between good and evil as the main line.

Speculation about the police "mole" and the undercover agent lurking in Zhao’s family is the biggest suspense in the first half of the drama, and it is the climax of the whole drama when the "King of Size" uncovers the mystery.

But later, when I saw that the "King" was Zhao Pengchao, the play had a little unfinished meaning.

The high-energy opening made the audience have high expectations for Penalty, but it was finally suspended in mid-air. The performances of Li Youbin and Cheng Yu remained stable, but Yang Shining was a pleasant surprise, and his acting skills made people sit up and take notice.

TOP9, "Kunlun Temple of God" score: 7.1

After the word-of-mouth decline of Yunnan Worm Valley last year, the series of Ghost Blowing Lights ushered in another heavyweight work, Kunlun Temple of God, which opened at 8.2 and then rushed to 8.3, which excited Pan Yueming and Yuqi Zhang.

Why is it higher than the score of Longling Cave?

In my opinion, a lot of real-life shooting, following the adaptation of the original work, including the casting of Ming Shu, A Xiang and others, are the reasons for the amazing feeling of the play, especially the Ake played by Sha Baoliang, which can’t be recognized without looking at the cast.

This season, I learned the lesson from Yunnan Worm Valley. Except for Peter Huang Zhi, there is no one character who plays a lot.

However, in the second half, this film "Kunlun Temple of God" was obviously lacking in stamina. Not only did the rhythm start to slow down, but a large number of green screen special effects began to replace the real scene, which made it easy for people to see the feeling of matting.

For a moment, I thought I was watching a crappy online movie.

Moreover, the emotional drama between Shirley Yang and Hu Bayi has also increased significantly, and even the scenes of Shirley Yang’s anger and Hu Bayi’s cold war have appeared. Coupled with the lack of some famous scenes, the score of Kunlun Temple has declined, which is expected.

TOP8, "Rock and Roll Flowers" Rating: 7.4

Domestic dramas with the theme of rock music are rare. This time, Yao Chen became the "first person to eat crabs".

The women’s rock band "Wild Flowers" had a great time. Peng Lai, played by Yao Chen, was the lead singer of the band, but faced with the betrayal of her husband and friends, she came to the United States alone in order to pursue her musical dream.

However, due to the huge cultural differences, Peng Lai was down and out during her 12 years in the United States. It was not until she received a phone call from her good friend Da Cui that she learned that her ex-husband had passed away. In order to take care of her daughter, she embarked on the road to return home.

As a 12-episode online drama, the main line of "Rock Wild Flowers" is a rock band.

But it is actually an urban family emotional drama covered with music. The emotional collision between Peng Lai’s mother and daughter, the affection between her and her mother, and the friendship with Da Cui and others all make this drama full of tender feelings.

What is particularly commendable is that smoking, drinking and swearing have not appeared in domestic dramas for a long time.

In my opinion, "Wild Flowers of Rock and Roll" may still be insufficient, but it is indeed a fresh attempt by the main creators. It represents that the online drama can completely shine differently in generate under the relatively relaxed creative environment.

TOP7, "Hunting Crime Picture Book" score: 7.5

Just like many small-budget online dramas, when "Hunting Crime Picture Book" was first broadcast, not many people cared. Until a few episodes later, the audience found that this crime-themed suspense drama seemed to be "something".

The series adopts the popular "double male host" setting.

Shen Yi, played by JC-T, is a portraitist with the special ability of "painting an old man at the age of three", that is, when you see a photo of someone at the age of three, you can draw his adult appearance, while Du Cheng, played by Jin Shijia, is a prosperous criminal police captain.

At first, Du Cheng was very critical of Shen Yi.

However, with the cooperation of the two men for many times, they have become more and more tacit. Apart from JC-T and Jin Shijia, they both contributed their due acting skills, and the stories in the series have taken into account the suspense and the depth that they are extremely suitable for social reality.

For this original work, the screenwriter Jia Dongyan encountered some difficulties:

He tried to sell the story, but Party A said that he would put the story of the portrait artist in an IP they had already bought, and only in this way would he consider cooperation.

However, Jia Dongyan’s insistence enabled the story of "Hunting Crime Picture Book" to be completely put on the screen.

TOP6. Out of Court score: 7.6

Although it is only a suspense crime online drama, Out of Court has attracted much attention since its establishment, because its main lineup is almost full, directed by Zhang Li of Ming Dynasty and Walking the Republic, and written by the fingerprint of White Night Chasing the Murder.

As for the leading role, it is Xia Yu, Luo Jin, Gao Ye, Junyan Jiao, Li Guangjie, Huo Qing and other Mesozoic powerhouses.

The play is divided into two paragraphs, Blind Area and Drowning Man, which are directed by Zhang Li and his disciple Huang Wei respectively. The former has 6 episodes and the latter has 15 episodes, making a total of 21 episodes. In my opinion, Blind Area is slightly better than Drowning Man.

Lu Nan played by Xia Yu is a judge, while Qiao Shaoting played by Luo Jin is a gold medal lawyer.

In Blind Area, Lunan is the absolute protagonist.

When he went to Nanjin for a short business trip to report to the president face to face, his superiors asked him to help pay attention to the death penalty review of a "bizarre corpse tragedy", and Lunan and Qiao Shaoting joined hands to finally solve the real mystery of the case.

But in "the drowning man", Qiao Shaoting is the protagonist.

When representing a "bizarre corpse case", Qiao Shaoting was framed and became a criminal suspect. At this time, the appearance of Xiao Zhen, a young female lawyer, became the dawn to tear open the truth of the case, and the infighting between the two law firms was also placed on the table.

The fast pace, meticulous logic, and the wonderful interpretations of the actors make this drama a masterpiece in this year’s domestic suspense drama, which is definitely worth seeing.

TOP5, Coward Rating: 7.7

The play is adapted from the novel "Raw Swallow" written by Zheng Zhi, a young writer. But it is a double-edged sword for the play itself, because the novel and the TV play are two different things, so the play is somewhat bleak.

But that’s just the only drawback.

The story takes place in the cold northeast. In the winter of 2001, Huang Shu, an 18-year-old girl, was killed and left naked in a snow pit in front of an unfinished building. The heavy snow covered up all clues related to the truth.

Ten years later, another girl’s body was thrown into the snow pit again, and the modus operandi was exactly the same as before, but the suspect in that year had already passed away, which made the old criminal police Feng Guojin fall into the fog again.

Two highly similar cases brought out the cruel and cruel youth of four boys and girls.

Compared with the original work, the online drama Coward "promoted" Qin Li to the leading role, making it run through, avoiding the problem of excessively fine narrative and timeline, and Oho Ou’s play in suspense themes has also made great progress.

In the cold winter in Northeast China, a science genius, a young poet, a ghost horse girl and a gentle beauty are entangled in the past like a mess, depicting a cruel story of youth about the North.

Finally, Yanhui Wang is 100% compatible with suspense crime dramas.

TOP4, Record of Mysteries in the Tang Dynasty: 7.7.

Yang Zhigang, who has been criticized for his broken lines, and William, who had a poor audience because of an incident, starred in The Mysteries of the Tang Dynasty. As a small-budget online drama, how much attention can they attract?

In addition to gimmicks, the most essential thing in film and television dramas is two words: quality.

It is said that Yang Zhigang can only play on the stage by his brother Guo Jingyu. This sentence is only half right. Objectively speaking, without the help of his brother Guo Jingyu, Yang Zhigang can’t have so many starring opportunities, but his acting skills are not bad.

That’s right, the producer of this "Tang Dynasty Paradox Record" is still Guo Jingyu.

The play sets the story in the reign of Li Dan in Tang Ruizong. At that time, Li Longji and his aunt Princess Taiping joined hands to break the dream that Queen Wei and Princess Anle were in charge, but after that, they became their main enemies.

Su Wuming, played by Yang Zhigang, is a close disciple of Di Renjie.

When he was a county commandant of Chang ‘an, he and Lu Lingfeng, the corps commander of Jin Wuwei, from constant friction to tacit cooperation, successively solved the strange case of Chang ‘an, uncovering those heavy "ghosts" under the night of Chang ‘an in the prosperous times.

The play has a total of 36 episodes and is divided into 8 cases.

It played down the reasoning part in the past costume suspense drama to the greatest extent, but focused on the word "paradox", reappearing the prosperity and tolerance of Chang ‘an, and Lu Lingfeng’s "three knives flow" was also quite interesting.

TOP3, "Beginning" score: 7.8

At the beginning of this year, Noon Sunshine, which has always been good at shooting drama, launched its own heavy transformation work-"Beginning", a light sci-fi online drama starring Angel and Bai Jingting, which is also the only one in Noon Sunshine this year."effectively broadcast the drama."

There are only 15 episodes of The Beginning, which tells the story of infinite flow.

Li Shiqing, a female college student, "came back from the dead" after a bus explosion. She gradually found herself in the time cycle before and after the bus explosion. In order to break this cycle, she found Xiao Heyun, a game architect, as an ally.

But the development of things, completely out of their expectation.

The old woman with all kinds of medicines, the gloomy middle-aged woman, the anchor called "Happy Brother", the old man who went to see his son with some watermelons, and the bus driver who looked strange, who is the "source of the explosion" among these people?

As a light sci-fi suspense online drama, The Beginning is undoubtedly a success.

In 15 episodes, it tells a story with clear story lines and strict logic, and under the interpretation of those "non-famous actors", one vivid character seems to break through the screen and become a fact in our lives.

In fact, the final ending of "The Beginning" did not end badly.

Many details have been suggested, including the scene of Wang Mengmeng smiling at his mother. It was Wang Mengmeng who arranged this cycle. Before that, she had been hovering over the bridge and bus that had an accident.

TOP2、《Meng Hua Lu score: 8.0

Andy, the screenwriter of Meng Hua Lu, forwarded a message praising her when it was popular. However, the attitude of "being on a par with Guan Hanqing" made Meng Hua Lu, which was already mired in the vortex of "wife literature", once again trigger a heated discussion.

The play is adapted from Guan Hanqing’s Yuan Zaju, Zhao Paner’s Romantic Salvation.

In the original work, Zhao Paner came to Tokyo by various means to save her sister Song Yinzhang, which is an important work of Guan Hanqing praising the awakening of women’s consciousness.

When it comes to TV dramas, it is obvious that female directors and screenwriters should also take the path of female themes.

But in my opinion:

Is Meng Hua Lu an excellent ancient doll?

That must be.

Is Meng Hua Lu an excellent work on women?

That’s not the designation.

Whether it is Gu Qianfan’s care for Zhao Paner, the second generation of super officials, or the awakening of women’s consciousness and the setting and lines of getting rid of the shackles of feudal male power in the play, it has nothing to do with the real female theme.

However, for the young audience who have had enough of "ugly men in ancient costumes" and "ordinary women in ancient times", the face value and acting skills of "Liu Tianxian" and Chen Xiao really set a good example for the younger generation.

TOP1The score of Foreign Material Records: 8.4

The origin of the story turned out to be such an incredible event:Shi Jian’s girlfriend drowned in a room where there was no water.

In order to find the truth, he opened a company called "Universal Brother", which specializes in "mysterious events".

Later, by chance, Shi Jian found a magic key that can reach anywhere. Then, magic items such as manipulating the fingers of objects, pendants that control water, and vanishing cream that can change shapes appeared one after another.

What kind of shocking secrets are hidden behind these things?

Some ordinary items suddenly have magical functions. This setting is not new, but Li Hongchou’s team (representing the series of Mao Cheat) picked up this setting and told a logical story.

In fact, as an early audience of Mao Cheat, I still want to talk about my feelings.

As a work of Li Hongchou’s team, the logic and the rigor of the story details of this novel are almost at the top of the domestic drama, but some of its actors can’t really interpret more complicated emotions.

Therefore, you can say that it is still a "grass-roots team" work.

However, for Li Hongchou, who pursues the ultimate creative path, maintains the stability of the team, and creates the initial heart, it is time to walk out of the spiritual home "International Village", because there is a bigger world outside.

Fighting on Seven Platforms: The Current Development Situation of Head Content of Miniature Plays

The blue word cultural industry reviews above the point pay attention to and star the standard.

Recently, the State Administration of Radio, Film and Television (SARFT) intensively issued the Notice on Further Strengthening the Management of Network Micro-short Plays and Implementing the Creation Promotion Plan (click for me to view) and the Opinions on Promoting the Prosperity and Development of Short Plays (click for me to view), making policy adjustments to micro-short plays and short plays. At present, the competition among major platforms for miniseries has entered the stage of deep involution, and seven video platforms, namely Aauto Quicker, Tik Tok, Youku, Tencent, Mango TV, bilibili and iQiyi, have entered the game one after another. This paper focuses on the introduction of micro-short plays on the heads of major platforms for friends to grasp the current development of micro-short plays.

author | Professor Zhao Hui, National Social Science Art Project "Current Status, Problems, Countermeasures and Development Trends of Miniature Plays" Team: Zhao Hui, Tian Yawen, Wang Sihan, Bao Yan, Lin Yijia.

read and edit | Time

edit | Peninsula

source | Media No.1 (ID: zcfhxy)

Micro-short plays have entered the stage of deep involution, and various platforms have entered the game one after another, showing the appearance of a hundred flowers blooming.

In terms of short video platform, Aauto Quicker was the first to enter the game, with emotion, youth, family and comedy taking turns, followed by Tik Tok, who poked the pain point of life with content and paid attention to humanistic care. In terms of long video platform, Youku has always been the leader in word-of-mouth and quantity. Tencent has built a very aesthetic theater with ten points, Mango TV emphasizes quality, and short plays frequently appear in circles. bilibili has taken the road of creative brain-burning early, and Iqiyi finally joined and is catching up.

After experiencing brutal growth and fierce competition, short plays will eventually embark on the road of quality and diversification.

Aauto Quicker: Four major content tracks take turns to debut.

Since 2019, the number of short plays in Aauto Quicker has reached 12,000, and the number of short plays with the head star has exceeded 350. According to the summary data of Aauto Quicker Short Plays page, 203 short plays were launched from January to August in 2022, with sweet pets, ancient customs and families dominating.

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2022-August 26, 2022.

By the end of 2021, among the 240+ short plays of Aauto Quicker Xingmang, more than 100 plays have exceeded 100 million, and there are more head contents such as "princess royal Up" with 350 million+plays and "Ten Thousand Slags in the Phoenix" with 420 million+plays. According to the data of Milan, from 2021 to 2022, Aauto Quicker’s short plays TOP5 were princess royal on the Top, Remarriage, Women’s Awakening, All Slags in the Morning, My Pride and Grandfather, all of which were love themes.

The four main content tracks of Aauto Quicker Xingmang short play are urban emotion, family empathy, youth inspirational and comedy. Comparing the content creation in January-March with that in April-July, we will find that the content of urban emotion is gradually declining, and more creators tend to try youth inspirational and comedy. In addition, the family empathy track has become the focus of Aauto Quicker’s short plays, and Nian Sa, Cheng Feng, Hutong Er and The Uneven Bowl of Water are broken because they are close to users’ lives.

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2022-August 7, 2022.

 

Tik Tok: Drama has gravity to release humanistic care.

Compared with Aauto Quicker, the short play track in Tik Tok started late. In 2021, Tik Tok launched a new plan. In June 2022, Tik Tok integrated and upgraded the original plan, and launched a drama gravity plan. According to the different types of creators, three tracks were built, namely, Dou+, Fenzhang and Drama Star. By August, 2022, there were 267 short plays on Tik Tok Platform in 2021-2022, with a wide range of themes, mainly urban, magical and emotional. # Tik Tok’s video content related to short plays has exceeded 30 billion.

△ Data monitoring time: January 1, 2022-August 7, 2022

According to the data of Milan, from 2021 to 2022, the short drama TOP5 on the Tik Tok platform was Night Diary, Confessions of an Evil Woman, My Landlord and Grandma, Your Motherhood Series 2 in the Future, and Strange Writer, which covered pension issues, doctor-patient disputes and real life pain points, and its content creation was full of humanistic care.

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2022-August 7, 2022.

Tencent: Very theater, very aesthetic.

In December, 2021, Tencent released the Ten Theater, covering the drama content of comedy season, suspense season, national wind season, interactive season and other categories, marking the new stage of Tencent video’s exploration of the quality of micro-short dramas.

Previously, Tencent had begun to lay out mini-dramas and achieved good results. According TOP5 statistics from Milan, in 2021, the influences of Tencent’s mini-short plays were Dream, Brother, Please Follow the Script, Roll the Pinion, Give You My Exclusive Favor, The Little Fox Fairy of the General’s Family, with more than 20,000 online media reports, 303,000 mentions by Weibo and 320 million hits by Tencent.

In the short drama influence TOP5 from January to August 2022, "Please! Don’t spoil me achieved a score of 30 million+,with 1,886 articles reported by online media, 73,000 mentioned by Weibo and 460 million hits by Tencent. In addition, the sub-accounts of "Datang Snacks" exceeded 15 million, and the sub-accounts of "Wife’s Counter-offensive" and "Give You My Exclusive Favor" exceeded 10 million, all of which achieved good results.

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2021-December 31, 2021.

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2022-August 7, 2022.

Youku: Leading word of mouth, quantity first.

Youku launched the short drama business in 2019 and has always been a leader in word-of-mouth and commercialization. In September, 2021, Youku released a plan to boost short drama, which built a bridge of cooperation between short drama producers and major literary animation IP platforms, and participated in the project creation in the form of investment and accounting.

According to statistics from Milan, the number of short plays of Youku ranks first among the five platforms, and its quality and influence are also in the forefront. In 2021, in the TOP5 of Youku’s miniseries, Weibo mentioned 390,000 pieces of Heartbeat Love, and Weibo played it 486,000 times. From the layout to the frequent head works, and then to the new exploration of profit model, Youku has explored a development path of parallel development and integration with the industry in the long-term practice, which shows the determination of Youku platform to continue to invest in micro-short dramas.

In 2022, Youku’s short plays continued to exert their strength, adhering to the fundamental principle that content is the best quality, staying awake and insisting on content first. According to the statistics of Meilande, among the top five influential short plays of Youku in 2022, Don’t Run Wild with My Sister and I Haven’t seen the Only Daughter, all reached a high online volume, with 1,299 and 2,300 online media reports respectively, and Don’t Run Wild with My Sister reached 5 million in the first round.

It can be seen that Youku focuses on and even creates user needs in content creation, expanding sporadic explosions and fine products into normalized, characteristic and high-quality mass-produced content, creating unique advantages and forming core competitiveness. Take "The Maid of a Thousand Daughters" jointly produced by Youku and Datang Star as an example. This drama won tens of millions of points with millions of investments. The reason is that it completed a series of thoughts on users, focus and track with the platform at the creative stage. From the selling point in the early stage, the male actor Su moved to create it, and to the platform giving accurate second suggestions on drama logic and production details in the later stage, Youku has formed a set of effective micro-short dramas in the long-term exploration.

 

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2021-December 31, 2021.

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2022-August 7, 2022.

Mango TV: strict quality control and diverse elements.

Mango TV devotes itself to creating Damang short plays, with love women as the main theme, and sweet pet plays as the mainstream, introducing fresh elements such as script killing, infinite flow, quick wear, etc. to avoid the homogenization of similar themes. For example, suspense elements are added to "The Woman Who Can’t Raid" to strengthen the story, and the fantasy setting is added to "The Queen of the Attack" to tell the story of the routine of chasing the wife crematorium.

Different from Tencent’s sweet pet short plays, mangoes are mostly customized, and the opinions of the platform are highly weighted, and strict quality control has achieved good results. In 2022, Mango TV launched the explosion of "Ignorance", with Douban score as high as 7, and the cumulative broadcast volume was nearly 600 million in the case of basically zero announcement.

In November 2022, Damang Project Studio reached a strategic cooperation with Tomato Fiction and Minimum Aperture Film, aiming at integrating the advantages of the three parties, building an industrial chain and promoting the symbiosis and mutual benefit of high-quality literary works and film and television dramas. It is reported that the Damang Project Studio and Tomato Fiction will jointly create 10 short plays, which will be produced by Minimum Aperture Films, among which "Lost in Ignorance 2" will be included, and drama series and novels will be launched simultaneously, so that drama series and online literature will collide with each other, transform each other, and maximize the volume and value of IP.

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2021-December 31, 2021.

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2022-August 7, 2022.

Bilibili: The Road to Creative Brain Burning

Although bilibili was a latecomer to the short play, his main light theater showed the characteristics of differentiation from the beginning. The works in the light theater tend to be younger as a whole, and almost all the contents are highly related to the current popular culture. The creativity with wide brain holes is often used to enhance the audience’s sense of gain.

In the first season of Light Theater, the masterpiece "Night Cat Express’s Dark Night Dream" and "Catch the Horse Detective", the former was shortlisted in the official short drama competition unit of Cannes International TV Festival, which is an urban fantasy story with metaphorical style, while the latter was located in the story of sand sculpture, with a large number of movie stalks such as Infernal Affairs and New never to lose added in style, and even bilibili’s characteristic stalks such as entrance examination and invitation code appeared.

In 2022, The Studio Diary, the opening work of the second season of Light Theater, went online, and landed on the hot list of Tik Tok and Zhihu and the hot post of Douban for many times. The broadcast volume of Tik Tok topic exceeded 160 million, and the total broadcast volume of bilibili exceeded 44.598 million. Sir, I want to calculate a divination, There is a peach blossom next door, and Struggle for the Dragon’s Sky, followed closely. In only two years of exploration, bilibili’s mini-plays showed uniqueness.

 

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2021-December 31, 2021.

△ Data source: Milan Communication Consulting Video Network Communication Monitoring and Research Database Data monitoring time: January 1, 2022-August 7, 2022.

Iqiyi: the new entrant of short play

Comparatively speaking, the micro-short drama creation of iQiyi platform is in a backward state among the five long video platforms. However, on November 10, 2022, iQiyi officially released the cooperation mode of network micro-short drama. For the upstream micro-short drama creators, a series with a single episode of 2 to 15 minutes and complete and coherent content can be launched on the iQiyi platform through the mode of member payment and accounting or CPM advertising. Among them, the content of a single episode with a duration of 2 to 10 minutes adopts CPM advertising accounting mode; For the content with a duration of 10 to 15 minutes in a single episode, the mode of member payment and accounting +CPM advertising accounting is adopted. In terms of the distribution of income from the payment of members, iQiyi continues the revenue statistics and sharing mechanism of the superposition of the new members, the effective viewing time of members and the advertising income, which have been applied in the online drama market, and at the same time opens seven-terminal data to the film. Aiqiyi’s inclusion of online miniseries in the platform accounting mode means that Aiqiyi hopes to attract more excellent content creators to produce diversified content, and the creators and viewers of miniseries will be able to achieve more fair and efficient content creation and consumption support.

The long video platform also actively seeks innovative development of drama forms with traditional satellite TV and other audio-visual platforms. For example, Tencent’s video and satellite TV resources are integrated to carry out drama reform with short band and long band, and Mango TV and Himalaya jointly launched the first domestic audio-video dual-platform simulcast short drama "The Rumor of Doctor Lu", and Youku’s multi-angle interactive short drama "When I Wake Up" is based on itself and pays attention to young positive energy users, and has made more explorations on the boundaries of micro-short dramas.

  

Changing the name of Beijing International Trade Fair to "speed up" and upgrading to promote the high-level cooperation and development of international service trade

  Cctv news(Reporter Liu Liang): the State Council Press Office held a press conference on May 22nd. Vice Minister of Commerce Wang Bingnan, Vice Mayor of Beijing Municipal People’s Government wang hong, Director of Service Trade and Business Services Department of Ministry of Commerce Xian Guoyi and Director of Beijing Municipal Bureau of Commerce Yan Ligang introduced the development of China’s service trade and China International Fair for Trade in Services in 2019, and answered questions from reporters.

  Wang Bingnan introduced at the meeting that the Beijing International Trade Fair will be held in Beijing from May 28th to June 1st. The theme of this year’s Beijing International Trade Fair is "Openness, Innovation, Wisdom and Integration". Enterprises and institutions from 130 countries and regions will hold exhibitions and discuss cooperation in 12 service trade fields. This year’s Beijing International Fair has four characteristics:

  One isPositioning is more accurate. Giving priority to the development of service trade is an important measure to promote China’s economic transformation and upgrading and high-quality development. Facing the new situation and new tasks, it will promote the positioning of Beijing International Trade Fair. Beijing International Trade Fair is positioned as a "service trade exhibition with global influence". Focusing on this new orientation, the China (Beijing) International Service Trade Fair will be renamed as China International Fair for Trade in Services from this session. After the renaming, the Beijing International Trade Fair will devote itself to building brands, expanding its influence and leading the innovative development of global and China service trade.

  The second isFaster frequency. Starting from this year, the Beijing International Trade Fair will be adjusted from biennial to annual, which is rare in large-scale foreign-related mechanism exhibitions other than China International Import Expo and ASEAN Expo.

  The third isOn a larger scale. This year, the exhibition area of Beijing International Trade Fair has greatly increased from 50,000 square meters in the past to 150,000 square meters. It is also the first time to try to set up a number of sub-venues, and fully incorporate Beijing’s important landmarks and functional facilities such as CBD, Forbidden City and Financial Street into the overall resources of Beijing International Trade Fair, fully demonstrating the development characteristics and broad space of Beijing’s service industry and service trade.

  The fourth isThe level of internationalization is higher. According to the new orientation of "global influence", the Beijing International Fair has invited a wide range of domestic and foreign political and business representatives and merchants to participate in the exhibition, which has received positive response from the international community. The number of countries and regions participating in the Beijing International Fair has greatly increased compared with the previous year, with broad international representation. A total of 21 international organizations and 130 countries and regions participated in the exhibition, among which countries and regions with the top 30 service trade volume in the world and countries that have signed service trade cooperation agreements with China will participate in the exhibition. Thailand will be the guest country of this Beijing International Fair.

  Wang hong introduced the progress of Beijing’s preparations. She said that the 2019 Beijing International Trade Fair will focus onScience and technology, culture, health, businessAnd other service fields, and strive to play an active role in leading the global service industry and service trade in frontier concepts, advanced technologies, innovations and industry standards.

  The conference adopted "One master and many assistants."Way, set up a main venue and 10 sub-venues, hold about 150,000 square meters of exhibitions and 236 forum meetings, including more than 100 forum meetings such as global service trade summit, international forums, industry conferences and special forums, and more than 100 negotiation and trading activities such as country promotion, provincial and municipal promotion and industry negotiation.

  The main venue is located in the National Convention Center and the surrounding Olympic Celebration Square and Beijing International Convention Center, and the sub-venues are located in Wangfujing Commercial Street in Dongcheng, Financial Street in Xicheng, CBD in Chaoyang, Zhongguancun in Haidian, Shougang Park in Shijingshan, Beijing City Sub-center in Tongzhou, Huitian District in Changping, Jing ‘anzhuang Pavilion in China International Exhibition Center, Shunyi New Pavilion and Palace Museum.

  Wang hong said that up to now, the preparations for this Beijing International Fair are progressing smoothly. Ninety-eight of the 131 countries that signed the "One Belt, One Road" cooperation document with China participated in the exhibition.

  Thirty-one provinces, autonomous regions and municipalities, Xinjiang Production and Construction Corps, five cities with separate plans and Shenyang participated in the exhibition, and Fujian Province was the guest province of this Beijing International Fair.

  It has been confirmed that three former foreign politicians, 12 heads of international organizations and foreign ministerial guests attended the meeting, and one academician of the European Academy of Sciences, four academicians of the China Academy of Engineering, two academicians of the China Academy of Sciences and more than 300 well-known experts, scholars and entrepreneurs attended the meeting and delivered speeches.

  At present, a total of 7,998 enterprises and institutions participated in the exhibition, including 1,690 exhibitors and 6,308 participants. Among these enterprises, there are 614 multinational companies and well-known enterprises in the industry and 63 Fortune 500 companies. In addition, there will be 36,000 merchants and representatives, more than 150 media and more than 500 media reporters.

  The 2019 Beijing International Trade Fair is about to kick off, and we look forward to this wonderful service trade event to promote high-level cooperation and development of international service trade.

After maintaining the number one in China for four consecutive years-& ENSP; Where is the next springboard for Chengdu International Train?

● Improving the quality of China-Europe international supply chain alliance will cooperate in four aspects: promoting the high-quality operation of China-Europe trains, connecting different tracks, integrating documents and property rights, and developing multimodal transport by land, sea and air.

● Incrementally build an open logistics channel connecting China Unicom inland, radiating South Asia and Southeast Asia, and rely on the "Sichuan" train in 2021 to promote the construction of a new international trade pattern of "buying Sichuan and selling the whole world"

Chengdu international trains have accumulated more than 10,000 trains, ranking first in the country for four consecutive years. Next, how to deepen high-quality development? Recently, the third "Asia-Europe" Global Partner Conference held in Chengdu gave the answer.

Upgrading   International supply chain alliance shares dividends

What is a supply chain? "I personally understand that all of you present at today’s meeting are from banks, foreign trade enterprises, foreign railways, railway stations, governments, customs, etc., and are a supply chain service system of China-Europe trains." Zhang Xu, deputy general manager of Chengdu International Railway Port Investment Development Co., Ltd. believes that an important direction for the future development of China-Europe trains is the supply chain.

At the conference site, the China-Europe International Supply Chain Alliance was formally established. The alliance, in conjunction with the Trans-Eurasian International Transport Coordination Committee and china international freight forwarders association, organized international railway organizers such as Korea Railway Corporation, Chengdu Customs, freight forwarders, financial services institutions, Chongqing, Xi ‘an and other major domestic China-Europe train operators to carry out pragmatic cooperation in four aspects: promoting the high-quality operation of China-Europe trains, connecting different tracks, integrating documents and property rights, and developing multimodal transport by land, sea and air.

"The establishment of the alliance will accelerate the spillover effect of the channel." Ji Shouwen, a professor and doctoral supervisor at Beijing Jiaotong University, said that the National Development and Reform Commission’s "Research on the High-quality Development Ideas of China-Europe Trains" was the project leader.

How to reflect the spillover effect? Ji Shouwen pointed out that China-Europe trains promote the innovation of international supply chain operation mode, and mainly form three service chains: "train+park", "train+industry" and "train+trade".

Among them, the "train+park" service chain is based on the train, building various logistics industrial parks at home and abroad, and promoting the agglomeration of resource elements in the park. "CEIBS (Chengdu) promotes the transformation of Qingbaijiang old industrial zone into a’ smart industry city’ and develops three leading industries, namely’ basic smart industry, smart manufacturing industry and smart service industry’. It is estimated that the output value will reach 80 billion yuan in 2025." Ji Shouwen introduced that the "train+industry" service chain attracts advanced manufacturing and scarce resource processing industries to settle in cities, and at the same time promotes the "Belt and Road" international capacity cooperation. "Siemens’ second digital factory outside Chengdu is proof." He pointed out that the "train+trade" service chain can promote the development of international trade of featured products and promote the construction of regional international trade centers and cross-border e-commerce trading centers.

Increment   Accelerated expansion of international and domestic markets

"In the first three quarters of this year, ASEAN has become China’s largest trading partner. With the completion of China-Laos Railway in 2021, the China-Myanmar Railway has been accelerated. It is expected that it will reach Vientiane, Laos and Yangon, Myanmar in the fastest three days, radiating ASEAN and the market space of China-Europe train (Chengdu) will also be further expanded." At the conference site, the relevant person in charge of Chengdu International Railway Port Management Committee is highly looking forward to the future development.

How to seize the opportunity?

On the same day, Chengdu International Railway Port Investment and Development Co., Ltd., Yunnan Intercontinental Train Logistics Co., Ltd. and Laos Moding Special Economic Zone Development Group Co., Ltd. joined hands to sign a strategic cooperation agreement: jointly build a southbound railway intermodal passage, create an open logistics passage connecting the inland, radiating South Asia and Southeast Asia, and promote economic and trade exchanges between Sichuan, Laos and Myanmar. In the future, the three parties will further build an integrated multimodal transport information platform, support and promote the docking of logistics information systems, realize the service functions of railway maintenance and inquiry, and accelerate the integrated development.

In addition, representatives from 12 cities (states) including Luzhou, Ziyang, Deyang and Guangyuan jointly started the "Sichuan" train in 2021. "The origin of the China-Europe train’ Sichuan’ will promote the construction of a new international trade pattern of" buying Sichuan and selling the whole world "." Zheng Quanfeng, director of Chengdu International Railway Port Management Committee, said.

According to the statistics of Chengdu International Railway Port, China-Europe trains (Chengdu) have accumulated more than 6,000 trains, driving the province’s import and export trade by more than 10 billion US dollars annually, serving more than 10,000 domestic and foreign enterprises, and the degree of integration with local industries is as high as 67%. (Reporter   Chen Hao   Chen Bihong)

A crucial year in history, affecting China for 300 years.

Original: I am Ai Gongzi’s favorite history.

In 1644, it was the year of Jia Shen in the lunar calendar.

This year, the Ming Dynasty is about to come to an end. This year is about to become a key year that will affect the next 300 years, and the people in it are unaware of it.

Under the leadership of Li Zicheng, the peasant army in Shanhaiguan Pass has entered the first Francisco in the world-Xi ‘an (now Xi ‘an), which is one step closer to the political center of Daming.

Outside the Commissioner’s office, the Eight Banners, with a number of more than 100,000, are closely watching every move of the Central Plains under the leadership of Regent Dourgen.

▲ In 1644, the Forbidden City had three owners. Source: Photo Network

Sad Spring Festival

During the Spring Festival this year, Emperor Chongzhen, a "model worker of Daming", felt the tension and oppression before the building would collapse.

On that day, a sudden gust of wind roared in Beijing, and the yellow sand covered the sun. The streets that should have been decorated with lanterns and celebrated the New Year were sparsely populated and depressed everywhere.

On that day, the ministers who should have entered the palace to congratulate them were collectively "absent from work". Chongzhen was the only one left in the empty hall, trying to squeeze out a smile to welcome the New Year.

But he couldn’t laugh.

Previously, Yuan Chonghuan, a famous anti-gold star, was executed in the year because of his own change; Trilateral governor Zheng Chongjian, who did not lose a single soldier, was framed by the minister and killed because of his dismissal; Lu Xiangsheng, the leader of the Tianxiong Army, was killed by four arrows because he ran out of ammunition. Sun Chuanting, the leader of the Great Qin Jun, was forced to go to war frequently, so he lost his pass and died. Hong Chengchou, the overseer of Ji Liao, was forced to land because of poor food and grass …

Chongzhen understands that these factors are of course influenced by his indecision and suspicious personality, but the most serious problem is that now, he seems to have no future available.

A week later, the "death reminder" for Emperor Chongzhen was sent to the Forbidden City: Li Zicheng, who had invaded Xi ‘an, ascended the throne on the Spring Festival, established the Dashun Dynasty and changed to Yongchang.

Next, he will lead his troops into Shuntianfu (now Beijing) and be the king of this world!

 

Wu Xiang’s quotation

Chongzhen couldn’t sit still any longer. He had to force himself to make a decision as soon as possible.

It occurred to him that there are only two ways to save Daming again and save his own life.

Either transfer the Ning Guan fighters stationed at the Great Wall back to Beijing, or directly move the capital to Jinling (now Nanjing).

Ning Guan fighters, with a total force of 30,000 people, were built by Yuan Chonghuan, a famous gold fighter, and were one of the three elite troops in the late Ming Dynasty.

Previously, he beat Dourgen and cried Huang Taiji.

It is also the Daming "regular army" with the strongest fighting capacity so far.

Jinling City was once the capital of Daming, where Mao Zhu Yuanzhang announced the birth of Daming.

After moving the capital to Beijing, Jinling City still maintained a complete administrative department, in case something happens to the empire in the future, it can make a comeback.

If Ning Guan fighters were transferred to the customs, it would be equivalent to handing over a large area of Liaodong territory to the Eight Banners of Qing Dynasty, which was eyeing up the customs.

Since Zhu Di, the ancestor of Ming Dynasty, the ancestral tombs of Emperor Daming have all been near Beijing. If we move the capital to Jinling, wouldn’t it make our ancestors restless?

No matter which method is adopted, Chongzhen is doomed.

He remembered what his brother said before he died, "My brother should be Yao and Shun" and felt a little powerless to control the future destiny of the empire.

After several days and nights of deliberation, Chongzhen finally decided to transfer Ning Guan fighters into the customs.

He wants to save his life, but he doesn’t want to bear the stigma of betraying his ancestors. He can accept being a model of "the emperor guards the country and the king dies."

Ning Guan fighters commander, it is the famous Wu Sangui in the future, at this time his father Wu Xiang is in charge of the emperor’s security work in Beijing.

After receiving the order from Chongzhen, Wu Xiang quickly entered the palace.

Seeing Wu Xiang in Chongzhen was like seeing a benefactor. He took his hand and asked him kindly, Are you used to living in Beijing? Are you dressed warmly? What do you need? Just ask, I can do it.

Wu Xiang certainly understood the emperor’s intention to summon him urgently. Now that the emperor has spoken, he can "tell the truth":

I have a family of 3,000. Just like my own son, I usually use wine, fat sheep, silk and satin. When I give the order, they can do their best in war.

In addition, Wu Sangui, the son of a dog, has thirty thousand soldiers of Guanningjun who can be good at fighting, and is trying to resist the Eight Banners of the Commissioner.

However, if the emperor wants to mobilize them, according to my estimation, he probably needs the court to allocate 1 million and two thousand yuan for his expenses.

Hearing this, Chongzhen almost fell off his chin. Why do you want so much?

Wu Xiang said that besides the 30,000 soldiers fighting, we have to consider the military family arrangements for others. If we count the resettlement fees, these estimates are not enough.

Then, is Wu Xiang’s "quotation" exaggerated?

According to "Compilation of Rejuvenation through Economy" compiled by Song Yingchang in Wanli Period, the monthly salary of Ning Guan cavalry is 1.6 liang+half stone rice, so a year is 19.2 liang +6 stone rice.

At that time, the imperial court discounted 1 stone of rice ≈1 tael of silver, and it took at least 25 taels to raise a soldier a year. Therefore, according to the ration of 30,000 soldiers and the inflation situation in the late Ming Dynasty, Wu Xiang is telling the truth.

But Chongzhen was puzzled. In his heart, he hoped that Ning Guan fighters could defend themselves, but the price was too high for him and the whole Daming could not afford it.

He bluntly said that he had no money. Can he work first and then get money for the sake of military duties and missions?

Wu Xiang shook his head.

▲ The demise of the Ming Dynasty has been decided at this moment. Source: Photo Network

Time waits for no man.

As a generation of emperors, Chongzhen actually chose an unwise approach and turned to the minister for help.

He told ministers that at present, there is an army of Li Zicheng in the northwest, and the Eight Banners elite of Dourgen is eyeing it.

Due to years of war, Daming’s national treasury has little money. I even donated my own private money to the front. Can you spare some money this time and ask Ning Guan fighters to defend Beijing?

To tell the truth, this kind of help is hard to work.

Throughout the history of China, the traditional etiquette emphasizes "the monarch is the minister’s program". Ministers have always obeyed the monarch’s orders, and there is rarely a situation in which "minister power" is higher than "monarch power".

Chongzhen took the initiative to put the cart before the horse.

Seeing that the high-ranking emperor now "commands" himself with such a low-profile and almost pleading attitude, ministers probably felt that the dynasty was hopeless, so they chose silence one after another.

They think that if the capital changes its flag one day, it will still be a minister, and who will be the emperor will not be the same!

After all, Chongzhen made a choice, like the hesitation in moving the capital and transferring soldiers. After he tortured himself ideologically for a period of time, he decided to call Wu Sangui Pingxibo and let him transfer Ning Guan fighters to Beijing as soon as possible.

But time waits for no one. At this time, the Ming Dynasty was dragged to the end.

Save or not, the end is the same.

In the seventeenth year of Chongzhen (1644), on March 19th, a desperate Chongzhen climbed up jingshan park (now Jingshan Park) behind the Forbidden City and found a crooked-neck tree. Three feet of white silk, completed the "feat" of "the king died in the country."

At this time, Ning Guan’s fighters, who entered Beijing, arrived in Zhili (now Tangshan, Hebei), which was hundreds of miles away from Beijing.

If you have knowledge under Chongzhen Spring, will you regret the time you wasted silently?

▲ Chongzhen’s final decision has been controversial. Source: film and television stills

Li Zicheng along the way.

Looking back on the year of 1644, Li Zicheng will probably be so happy that he can’t sleep.

This year, thanks to God, he ushered in the peak of his life.

Never thinking of being an emperor, he actually had the opportunity to have an emperor addiction in Xi ‘an. The key is to work harder and be the master of the world.

At least that’s what he thought when he gave Chongzhen, who was far away in Beijing, the afternoon gauntlet.

In the first month of the first year of Dashun Yongchang (1644), just after the Spring Festival, Li Zicheng set off in the direction of Beijing with a mighty army.

In February, we captured Fenzhou (now Fenyang, Shanxi Province), Yangcheng (now Yangcheng, Shanxi Province), Puzhou (now Yongji, Shanxi Province), Huaiqing (now Jiaozuo, Henan Province), Taiyuan and other places, and had a smooth journey.

Li Zicheng thought that before long, the world would change hands.

How did I know that I met Zhou Yuji in Daizhou (now Xinzhou, Shanxi)? After a fierce battle, Zhou Yuji led his troops to retreat to Ning Wuguan (now ningwu county, Xinzhou) and refused to surrender.

After many unsuccessful attempts to surrender, Li Zicheng had to bite the bullet and storm, and finally won Ning Wuguan at the cost of more than 70,000 casualties. Cha Jizuo recorded this campaign in the Record of Crime:

"After the thief (referring to Li Zicheng) was trapped in the capital, there were many people who created it by hand and foot, and all of them were those who fought to win the war."

After the first world war, Li Zicheng was frightened. He didn’t expect the little Daizhou to almost beat himself back to his original shape.

And then the army will move to Xuanfu (now Zhangjiakou, Hebei Province) and Datong (now Datong, Shanxi Province), which are the strategic locations that Daming has always focused on defending, and there are naturally many more elite soldiers than Daizhou.

Can their own millions of peasant army brothers withstand the attacks of those two groups of people?

As it turns out, Li Zicheng thinks too much.

When the defenders of Xuanfu and Datong heard that Li Zicheng was coming, they opened the gates and offered to surrender. Wherever the army went, "the city was full of joy, and it was greeted with colorful incense."

On March 15th, Li Zicheng successfully arrived at Juyongguan, the gateway of the capital. There, the company commanders Tang Tong and the eunuch DUZH rank of the army had already opened the gates wide, waiting for the "King" to enter the city to review the troops.

On March 16th, Li Zicheng crossed Changping and arrived in Shahe.

On March 17th, they entered Gaobeidian and Xizhimen, bombarded the city with heavy artillery, and attacked Fuchengmen, Zhangyimen and Xizhimen in the afternoon.

At this point, he has arrived at the gate of Beijing with a great army.

Remembering his bitterness along the way, Li Zicheng decided to be "generous" once and stop attacking. Sent eunuchs to send a letter to Chongzhen, demanding that Northwest China be ceded to him, where he was king.

条件是,他可以率农民军帮助崇祯抵抗天下各路反贼,以及关外的多尔衮。

很显然,这种要求,对于早已做好“死社稷”的崇祯而言,一点儿诱惑力都没有。

三月十九日,李自成由太监王德化引导,从德胜门入,经承天门步入内殿,结束了明朝276年的统治。

▲李自成进入北京城,明朝灭亡。图源:影视剧照

紫禁城42日游

李自成进入京城后,立即下令以礼厚葬上吊的崇祯皇帝,在东华门外举行公祭。

同时约束进入京城的农民军弟兄,要求他们继续保持过去不打砸抢的优良传统。

虽然是自己的对手,但李自成挺同情崇祯的。

他不明白,偌大的大明帝国,为什么始终拿不出救命的100万两?到底是皇帝穷,还是大臣穷?

据《明季北略》记载,李自成入京师后,从宫中搜出内帑“银三千七百万锭,金一千万锭”,“旧有镇库金积年不用者三千七百万锭,锭皆五百两,镌有永乐字”。不过,这只是一种说法。另一些史料则表明,大明国库和内帑确实被掏空了,所剩无几。

那么大臣呢?

仍存疑问的李自成开始了他入主紫禁城后最大规模的“拷掠官员”行动。

拷掠官员,就是根据李自成设立的征税指标,对不同等级的官员实施强制征收银两。

Those who don’t want to cooperate, or those who pay less or fail to pay, are all arrested and beaten to the death. When to pay enough, when to let people go.

He is not Chongzhen, neither indecisive nor affectionate to these ministers.

From March 27, the peasant army began to raid the property everywhere, raiding all the ministers, rich families and aristocratic families of Daming. Among them, Wu Xiang, who previously asked Emperor Chongzhen to pay millions of dollars.

▲ Wu Sangui faces a choice. Source: film and television stills

At that time, Wu Sangui’s Ningyuan fighters were working in Yutian, Zhili (now Tangshan, Hebei).

Hearing that Emperor Chongzhen hanged himself and Daming perished, Wu Sangui lost his sense of proportion for a moment, and he didn’t know what to do with his troops.

The situation before Wu Sangui is that it is defeated by Li Zicheng at home and defeated by Dourgen at abroad.

Besides, at this time, because of his withdrawal, it is equivalent to giving Dourgen a direct customs clearance certificate to Beijing.

Heroic disputes in the world have existed since ancient times. Surrender to Li Zicheng is not unheard of.

However, when hearing that Li Zicheng sent someone to copy his home, arrested his father, and Liu Zongmin, the No.2 figure of the peasant army, occupied his "confidante" Chen Yuanyuan, Wu Sangui turned his horse’s head and led the army back to Shanhaiguan.

For these situations, Li Zicheng is not ignorant.

Growing up in the Loess Plateau of Shaanxi Province, he has already developed a bold, stubborn and hard-hitting personality, which may be one of the reasons why he entered the capital smoothly.

Chen Yuanyuan, he thought, was a concubine, which was nothing compared with Liu Zongmin, who was as close as a brother.

Therefore, when he heard that his sworn brother Liu Zongmin had robbed Wu Sangui’s concubine Chen Yuanyuan, he did not immediately dissuade him.

Despite the serious situation, Wu Sangui turned around and turned back to Shanhaiguan.

He didn’t understand that Wu Sangui, a southerner (originally from Gaoyou, South Zhili, Wu Sangui, now Gaoyou, Jiangsu), would go out and return to Shanhaiguan for a woman, regardless of his father’s life.

At this point, I’m afraid Li Zicheng, who caused "bad consequences", summoned the left and right sides urgently, trying to "suppress and appease" and soothe Wu Sangui.

On April 13th, Li Zicheng ordered Liu Zongmin to lead sixty thousand troops to Shanhaiguan. On this trip, his original intention was to try his best to persuade Wu Sangui.

Because, Wu Sangui has the military power he has always wanted-Ning Guan fighters. If he can’t get it, he will turn against himself and become a menace.

But knowing that Wu Sangui and Liu Zongmin were "enemies", Li Zicheng let Liu Zongmin take the lead, which was a mistake.

In the end, this Daming Pingxibo can only be forced to agree to the conditions of Dourgen and become the king of the Qing Dynasty.

On April 23rd, the Eight Banners of Dourgen and Dashun Army led by Liu Zongmin fought for the world in front of Shanhaiguan.

According to the history, "this battle was fought in Ma Benteng, flying like an locust, and Dashun army was caught off guard and suffered heavy casualties".

On April 29th, Li Zicheng, who was crippled by Wu Sangui and the elite of the Eight Banners, angered and killed 34 Wu Sangui families. On the same day, Li Zicheng proclaimed himself emperor in the Forbidden City and started his "one-day tour of imperial career".

The next day, April 30th, Li Zicheng, who lived in the Forbidden City for 42 days before and after, decided to set a fire in the Forbidden City to make a heroic move for the peasant army that was about to withdraw from the west.

▲ Li Zicheng withdrew and the Qing army came. Source: film and television stills

The winner

For Dourgen, 1644 is even more worth remembering.

A few months ago, Huang Taiji, the founder of Qing Dynasty and his brother, lost his life. His nephew Fu Lin succeeded to the throne, but the actual master of Qing Dynasty was himself.

Since my father fought against the Ming Dynasty with the "seven great hates", my father and brother have not waited for decades to successfully cross Shanhaiguan and enter the Central Plains.

Now, because of the death of Daming, I and the children of the Eight Banners who have worked hard for decades behind me finally have a chance to realize their father’s and brother’s wishes.

Dourgen knew that the opportunity was hard-won, so from beginning to end, he did not easily send out a single soldier and step into the Central Plains, which had been turned upside down. He has been sitting on the sidelines.

Until Daming Ping Xibo Wu Sangui’s letters were put on his case.

▲ Portrait of Dourgen. Source: Network

In his letter, Wu Sangui earnestly requested Dourgen to send his troops to save him and Shanhaiguan. After the job is done, I am willing to "crack the ground to pay."

After reading the letter, Dourgen did not immediately send troops to help Wu Sangui. He knew that Wu Sangui could thank him for sending troops to help by ceding land, which showed that he still had room for retreat.

If we send troops rashly and help Wu Sangui now, there is no guarantee that he will not establish an emperor, re-establish Daming and drive himself back to his lair outside the Commissioner’s office after kicking Li Zicheng away.

But Fan Wencheng, an old minister, gave him a suggestion: "If Qin loses its deer, Chu and Han will chase it away, but I will not fight with the Ming Dynasty, but actually fight with the bandits.".

We should send troops at once, because the enemy we are facing now is Li Zicheng, not the Ming Dynasty, and there is no such thing as "learning from the unknown".

Besides, the fighting quality of our army is not comparable to that of the peasant army in Li Zicheng. However, we should pay attention to restrain the behavior of soldiers, and never make the mistake made by Li Zicheng again.

Dourgen listened to Fan Wencheng’s advice, but decided to stay put.

He has to wait, wait for the right time.

On April 13th, Li Zicheng Liu Zongmin led an army of 60,000 troops to Shanhaiguan to suppress Wu Sangui.

Wu Sangui at this time, already anxious like a cat on hot bricks. He sent messengers again and again to ask Dourgen to send troops to Shanhaiguan to fight against Li Zicheng’s Dashun Army together with himself.

But Dourgen is not stupid. Why should I jointly crusade against Li Zicheng with you? I want the world, not to defeat Li Zicheng.

Before Wu Sangui surrendered to the Qing Dynasty, although Dourgen was very close to Shanhaiguan, he remained quietly.

April 21st, the eve of Shanhaiguan War.

Wu Sangui, who could not bear the pressure, finally let go and promised to Dourgen, and decided to settle down in exchange for the Qing army to send troops to Shanhaiguan to help him drive away Li Zicheng.

On April 22nd, Li and Wu fought in Shanhaiguan.

Wu Sangui, who surrendered to the Qing Dynasty, led Ning Guan fighters to a decisive battle with Dashun Army under the orders of Dourgen.

Both sides suffered heavy losses in this battle. Ning Guan fighters, on which Daming relied, declined in history.

As Dashun Army was about to capture Shanhaiguan, it was only when Dourgen made Duo Duo and Azig each lead 20,000 chosen men to attack Dashun Army from the flank and enter Shanhaiguan in one fell swoop.

In 1644, the shrewd Dourgen became the final winner.

Upside down, the dynasty changed, and history turned and turned in this year.

The full text is finished, thank you for your patience in reading, and please click on it to let me know that you are reading ~

References:

[Ming] Ji Liuqi: A Brief Introduction to the North in the Ming Dynasty, Zhonghua Book Company, 1984.

[Ming] Cha Jizuo: The Record of Crime, Beijing Library Press, 2006.

[Ming] Song Yingchang: A Brief Compilation of the Revival of China, National Library Document Miniaturization Center, 2003.

[Qing] Zhang Tingyu: Ming History, Zhonghua Book Company, 1974.

[Qing] Xu Nai: An Examination of Xiao Tian’s Chronology, Zhonghua Book Company, 2010.

Qin Guojing and Yuan Hongqi: The Forbidden City: A Panorama of Royal Life, Current Affairs Press, 2006.

– END –

Author: Datang Liang Jinwu

Editor Ai Gongzi

Original title: "A crucial year in history, affecting China for 300 years"

Read the original text

Is this disinfection really effective? Let’s see how Covid-19 was inactivated.

shell of nuts

The following article comes from Guoke Children’s Academy, written by Xiao Tian.

In recent days, the epidemic situation in COVID-19 has been raging. At present, the number of new cases is still rising, and the cumulative number of confirmed cases has exceeded 70,000. The situation is still very grim.

Although there have been many articles on popular science home disinfection, there are still many people who are not at ease and often come to ask, is this disinfection effective? Can you kill Covid-19?

This article pushed by Nut Mom today, starting from the mechanism of disinfectant, makes you clear about the inactivation process of get virus, and at the same time, you are no longer anxious and calm!

one

Structural characteristics of Covid-19.

Novel coronavirus, which caused the pneumonia epidemic, has been identified as an enveloped virus. Besides the capsid formed by protein and its genetic material (single-stranded RNA), it also has an envelope.

Schematic diagram of Covid-19 structure

On the surface of the envelope structure, there are three kinds of glycoproteins, namely:

Spike glycoprotein (S, SpikeProtein, receptor binding site, cytolysis and major antigen site)

Small envelope glycoprotein (e, EnvelopeProtein).

Membrane glycoprotein (M, MembraneProtein, responsible for transmembrane transport of nutrients, budding release of newborn virus and formation of virus envelope)

Covid-19 electron micrograph

If disinfectants, or other environmental conditions, can destroy the structure of Covid-19, it should be able to effectively inactivate it.

2

The Mechanism of Common disinfection products

At present, disinfection products on the market can be classified according to the site of action, which can be summarized into the following two categories:

Nucleic acid directly acting on internal genetic material: ultraviolet disinfection

Protein is inactivated by most chemical disinfectants and high temperature.

The deactivation of protein mainly changes and destroys its secondary or tertiary structure by heating, dehydration, oxidation, salification, deamination and charge change.

three

How to choose an effective disinfection products?

one

Direct destruction of RNA

Representative products: ultraviolet lamp, ultraviolet disinfection cabinet.

Common disinfection lamp products

Ultraviolet is an electromagnetic wave, which can be generally divided into:

UVA (ultraviolet a, wavelength 320 ~ 400 nm, long wave)

UVB (wavelength 280 ~ 320 nm, medium wave)

UVC (wavelength 100 ~ 280 nm, short wave)

It should be pointed out that the wavelength below 200nm is vacuum ultraviolet, which can be absorbed by air. Therefore, the wavelength that UVC can pass through the atmosphere is between 200 ~ 280 nm, which is also the wavelength band selected by UV lamps in the market at present. Among them, the sterilization effect is the strongest at 253.7nm.

After Covid-19 is irradiated with UVC, it can undergo photochemical reaction with its genetic material RNA, causing the cleavage of phosphodiester bond and hydrogen bond, forming pyrimidine dimer (such as uracil cyclobutane dimer, uracil hydrate, cytosine hydrate, etc.), thus causing the virus to lose its replication ability.

Ultraviolet lamp disinfection, although effective, is not recommended.

matters need attention

Purchase ultraviolet lamps with 253.7 nm wavelength for disinfection and sterilization (different from decorative ultraviolet lamps, etc.);

Ultraviolet ray penetration is poor, so it should be directly irradiated on the surface of the object during sterilization and disinfection, and the distance from the irradiated object should not exceed 1 meter.

When disinfecting indoors, doors and windows should be closed, and personnel should avoid it. The irradiation time should be not less than half an hour, and after disinfection, it should be fully ventilated.

Ultraviolet rays can damage the skin and cornea, so people should not directly touch or stare, especially children.

2

Destroy protein and inactivate it.

01

Physical heating

Representative products: steam disinfection cabinet/pot/machine, etc.

Common steam boiler

This kind of products use the high temperature of water vapor to break the disulfide bonds and hydrogen bonds in the protein molecule of the virus to destroy its secondary structure; Peptide bonds will also break after a long time.

In this way, protein will change from a regular spiral, spherical and other spatial structures to an irregular extended peptide chain, resulting in irreversible inactivation.

This kind of products are mainly aimed at some heat-resistant items, such as tableware, toys, baby bottles and other small items. It is not recommended to buy it. Boil it directly in a pot or steam it in a steamer, and the same effect can be achieved.

It should be noted that for Covid-19, the temperature should be at least 56℃, and the disinfection time should be at least half an hour to ensure that the virus is fully inactivated.

02

dehydrate

Representative products: medical alcohol

Ethanol (commonly known as alcohol) can kill viruses with envelope structure, so it is effective for Covid-19 this time.

Specifically, alcohol has a certain fat solubility, and according to the principle of "similar compatibility", it can destroy the lipid envelope composed of phospholipid bilayer; At the same time, protein can be dehydrated and denatured when it comes into contact with glycoprotein on the surface of virus envelope, thus inactivating the virus.

It should be emphasized that the reason why 75% alcohol is used is that when the alcohol concentration is too high, the dehydration reaction will be too fast, which will cause the protein in contact to condense rapidly, thus forming a protective dura mater on the surface of the virus to prevent further infiltration of alcohol. When the concentration is too low, it is not enough to kill the virus.

At the concentration of about 75%, the antivirus effect is the best. Alcohol will dissolve the protein envelope first, and then penetrate into the virus a little bit to degrade the genetic material.

The concentration of medical alcohol in the market is mostly 95% and 75%, and the latter has better disinfection effect. If it is the former, it can be diluted with water (100 ml of 95% alcohol and 27 ml of distilled water) to make about 75% alcohol.

If you can’t buy medical alcohol, more than 75% liquor can also be used to disinfect the surface of objects, but because there are other substances besides ethanol, the effect is definitely not as good as medical alcohol. This is an emergency measure and is not recommended for long-term use.

When in use, the alcohol solution can be sprayed in a watering can, or it can be wiped with an alcohol cotton ball made of cotton swabs. Hands, mobile phones, remote controllers, door handles, buttons, keys, keyboards and mice can all be disinfected with it.

matters need attention

Don’t spray alcohol on infants, avoid touching a lot of alcohol on the body, and prevent allergies or alcoholism;

When using alcohol, don’t be close to the heat source, and don’t spray directly into the air to avoid fire;

Do not spray alcohol on clothes to prevent static electricity from causing fire;

When disinfecting the surface of electrical appliances, remember to cut off the power supply, and all items should be reused after the alcohol volatilizes;

Alcohol should be stored in a dark, cool and ventilated place to avoid children’s contact.

03

oxidate

Representative product 1: chlorine-containing disinfectant

All chlorine-containing disinfectants have one thing in common-they can generate hypochlorous acid (HClO) with microbicidal activity after being dissolved in water.

Hypochloric acid has a small molecular weight and strong oxidizing property. When it comes into contact with Covid-19, it will first oxidize the envelope protein to denature it, and at the same time damage its protein shell, so that its protein cross-linking function will be lost, thus further destroying the biological enzyme system and genetic genes and making it inactive.

Common chlorine-containing disinfectants in the market include bleach, bleach, 84 disinfectant, etc., which can be used for household daily necessities (such as tables and chairs, bedside tables, sanitary ware, door and window handles, etc.). It should be pointed out that not all disinfection products with the word "chlorine" are chlorine-containing disinfectants.

Although the main components of this chlorine-containing disinfectant are different, here is a trick for everyone: the main components of the product are "sodium hypochlorite" or "calcium hypochlorite", that is, chlorine-containing disinfectant (of course, the main components of chlorine-containing disinfectant also include hypochlorous acid, trisodium phosphate chloride, sodium dichloroisocyanurate, trichloroisocyanuric acid, chloramine, etc., but the first two are commonly used in household products).

When using, some solid disinfectants (such as bleaching powder) need to be prepared into a solution with a specified concentration for use; Liquid disinfectants (such as 84 disinfectant) need to be diluted with water in a certain proportion before use. Just follow the instructions.

matters need attention

Chlorine-containing disinfectants are generally irritating to some extent, so masks and gloves should be worn and protected when configuring and repackaging;

Chlorine-containing disinfectants are highly oxidizing, so they should be stored away from high temperature, fire sources and children.

Chlorine-containing disinfectants should avoid contact with metal objects and colored clothes to avoid corrosion or fading;

In particular, it should be noted that chlorine-containing disinfectants should not be used with alcohol or toilet cleaner at the same time, which will produce toxic gases and cause harm to human body.

Representative product 2: peroxide disinfectant

Peroxide disinfectant refers to a kind of disinfectant which contains divalent peroxy group "-O-O-" in its molecular structure and can produce active oxygen with bactericidal ability, and the representative is peracetic acid.

It also kills Covid-19 because of its strong oxidizing ability. When exposed to the virus, it can be damaged by removing the electrons of the virus envelope protein, and it can also attack the nucleotide base and sugar-phosphate skeleton, thus destroying the biological structure and function of the virus.

Besides peracetic acid, peroxide disinfectants also include hydrogen peroxide (hydrogen peroxide) and chlorine dioxide.

This is a kind of safe and green disinfectant. Among them, the products containing peracetic acid have the pungent smell of acetic acid, which are mostly used for industrial and agricultural disinfection, and are generally not recommended for household use. Hydrogen peroxide is very suitable for home use, and can be used on tables, nightstands, sanitary ware, door and window handles, stair handrails and other surfaces.

When in use, according to the national standard GB26371-2010 hygienic standard for peroxide disinfectants, "on the surface of general objects, use 0.1% ~ 0.2% peracetic acid or 3.0% hydrogen peroxide for disinfection for 30 minutes, and then rinse with clear water to remove residual disinfectants", or operate according to the product instructions.

matters need attention

Peroxide disinfectants are highly oxidizing and irritating to skin and mucosa, so be careful not to let children touch them.

Peroxide disinfectants should be stored in a ventilated and cool place to avoid high temperature and metal to prevent explosion danger;

Hydrogen peroxide is unstable, and its disinfection ability will fail if it is stored for a long time. Therefore, it is recommended to store it in the dark and seal it tightly, and use it as soon as possible after opening.

It is worth mentioning that disinfection products (such as Di Lu, Verus, etc.) whose main component is "p-chloroxylenol" is controversial at present.

Dew disinfectant

P-Chloro-m-xylenol (PCMX for short) belongs to phenolic disinfectant, and there are few reports on its action on coronavirus. According to the experimental results in recent years, this kind of disinfectant is effective for SARS-CoV SARS virus, human coronavirus 229E and MHV coronavirus.

In view of the high homology between Covid-19 and SRAS virus, we infer that the disinfectant containing p-chloroxylenol may have a killing effect on novel coronavirus.

The best effective concentration of p-chloro-m-xylenol is 0.12%, and the specific products can be used according to the instructions or diluted with water.

Another one that is discussed more is the ozone machine.

Ozone machine, picture from Amazon.

In terms of mechanism, the strong oxidation of ozone is effective for viruses. Previously, there have been experimental reports on the inactivation of SARS virus by active oxygen and ozone, and a high inactivation efficiency has been achieved.

However, ozone is highly irritating, unstable in chemical properties, harmful to human body due to poor dose control, and the official has not given a clear conclusion at present, so it still needs to be used as a home disinfection method as appropriate.

That’s the summary of all the effective disinfection products for Covid-19. In view of the current outbreak of pneumonia, experts from the Health and Health Commission pointed out: "Disinfection is an important means to cut off the route of transmission and control the epidemic of infectious diseases."

I hope everyone will do a good job in home protection and scientific disinfection, so that the virus has no chance.

– END –

Author | Xiao Tian, mother of a four-year-old girl, master of biology, working mother, parent-child freelance writer; I like to record the baby’s growth in words and practice raising daily life with scientific concepts.

Editor | Octopus Mom, the mother of a two-year-old boy

References | [1] Diagnosis and treatment scheme of pneumonia infected in novel coronavirus (trial sixth edition)

[2]Prof Roujian Lu,Xiang Zhao,etc.Genomic characterisation and epidemiologyof 2019 novel coronavirus: implications for virus origins and receptorbinding.The Lancet,January 30, 2020.

[3] Tell you the pathogenesis and spread of COVID-19 with academic papers | |PaperPP.

https://m.paperpp.com/news/2146.html

[4]Wood A, Payne D. The action of three antiseptics/disinfectantsagainst enveloped and non-enveloped viruses. J Hosp Infect 1998; 38:283–95.

[5] Yan Yanli, research status of ultraviolet sterilization technology. Petrochemical Technology, 2011,18(4):60.

Limei Xu, Zhang Chongmiao, et al. Disinfection effect of ultraviolet rays and sodium hypochlorite on Escherichia coli and Poliovirus. Environmental Science, 2017, 38(5): 1928-1935.

[7]Rastogi R P, Richa, Kumar A, et al. Molecular mechanisms ofultraviolet radiation-induced DNA damage and repair. Journal of Nucleic Acids,2010: 592980.

[8]Sikorsky J A, Primerano D A, Fenger T W, et al. Effect of DNAdamage on PCR amplification efficiency with the relative threshold cyclemethod. Biochemical and Biophysical Research Communications, 2004, 323(3): 823–830.

[9]Sigstam T, Gannon G, Cascella M, et al. Subtle Differences invirus composition affect disinfection kinetics and mechanisms. Applied andEnvironmental Microbiology, 2013, 79(11): 3455–3467.

[10] Wang Ling, Xu Yan. Evaluation of germicidal efficacy of hypochlorous acid disinfectant on environmental media. China Disinfection Impurities, 2019,36(10),724-727.

[11] Jason, Chen Zhaobin. New research progress of peroxide disinfectants. China Disinfection Impurities, 2019,36(09),709-711.

[12]GB/T 36758-2018 Hygienic requirements for chlorine-containing disinfectants

[13]GB 26371-2010 Hygienic standard for peroxide disinfectants

[14]Wolff, M. H., Sattar, S. A., Adegbunrin, O., Tetro, J. Environmental survival and microbicide inactivation of coronaviruses. InCoronaviruses with special emphasis on first insights concerning SARS.Basel:Birkhaüser,2005:201-212.

[15]Dellanno C,Vega Q,Boesenberg D.The antiviral actionof common household disinfectants and antiseptics against murine hepatitisvirus, a potential surrogate for coronavirus. American journal of infectioncontrol.2009,37(8):649-652.

Original title: "Is this disinfection really effective? How on earth was Covid-19 inactivated? 》

Read the original text

Four possible experts: there is no reason to go to the table.

       CCTV News:The General Administration of Market Supervision issued an announcement last night (18th). In response to media reports that pork products such as dumplings were positive for African swine fever virus nucleic acid, the General Administration of Market Supervision and the Ministry of Agriculture and Rural Affairs have asked enterprises to immediately trace the source of pork raw materials and dispose of pork products. At present, the two departments have sent a joint inspection team to investigate and verify the relevant situation, requiring pork products manufacturers to further strengthen the control of pork raw materials, implement the inspection and quarantine ticket inspection regulations, improve the African swine fever detection and review system, and prevent infected pork raw materials from entering the food processing link. Enterprises that fail to fulfill their prevention and control responsibilities as required will be severely punished once they are found.

       Sanquan Food: Suspected batch products have been sealed.

       In this incident, it was revealed that several batches of soup dumplings produced in Sanquan Food were suspected of African swine fever virus. In this regard, Sanquan Food announced yesterday (18th) that the company had sealed all relevant suspected batches of products from all sales channels for the first time. At the same time, the Henan provincial government has sent a joint investigation team to Hunan and Gansu respectively to check the relevant situation with relevant local departments.

one

       Expert: There are four possibilities for quick-frozen food to be infected with virus.

       After the incident was exposed, netizens raised some questions, such as: How did African swine fever virus flow into frozen food? In this regard, a reporter from Voice of China interviewed Yi Zhu, an associate professor at the College of Food Science and Nutritional Engineering of China Agricultural University. Yi Zhu pointed out that the most extreme situation is that sick and dead pork is mixed into the production process. In addition, there are three possibilities.

one

       Yi Zhu, Associate Professor of College of Food Science and Nutritional Engineering, China Agricultural University, said: "The first reason is that the detection methods have been greatly improved and the detection sensitivity is very high. Even if there are only a few viruses, it can be detected. The second reason is that when pork was imported and slaughtered, some pigs with latent disease were not identified. It has been carrying African swine fever virus, the incubation period is about 5 to 19 days, and there is no disease. If you don’t do special disease detection, you can’t see it with the naked eye, so that such pork is mixed into the supplied products. The third reason is that there is no problem with pork itself, but it is polluted by African swine fever virus in transportation, processing and packaging. "

       Expert: It will not infect people and will not affect food safety.

       Another question that everyone cares about is, is African swine fever virus harmful to human body? Can pork still be eaten?

       Experts from the Ministry of Agriculture and Rural Affairs have responded to this repeatedly mentioned question. African swine fever is not zoonotic and will not infect people. At the same time, it will not infect other animals except pigs and will not affect food safety. In addition, experts also said that high temperature can kill African swine fever virus, and continuous heating at 60 degrees Celsius for 20 minutes can kill the virus. Therefore, everyone can safely consume the quarantined pork.

one

       However, is African swine fever virus harmless to human body? In an interview with Yi Zhu, an associate professor at the College of Food Science and Nutritional Engineering of China Agricultural University, Yi Zhu said that although African swine fever virus does not pose a health risk to people, pigs with African swine fever belong to sick pigs, and there is no reason to walk on the shelves and dining tables.

       What is African swine fever? It was diagnosed in Africa in 1921 and ravaged many countries in 2018.

       African swine fever is an acute and severe infectious disease of pigs infected by African swine fever virus. It was first diagnosed in Kenya in 1921, and it raged in many countries around the world in 2018. More than 6,200 outbreaks were reported in 22 countries. In August 2018, the first African swine fever epidemic occurred in Shenbei New District, Shenyang, Liaoning Province. Subsequently, epidemics also occurred in Zhengzhou, Henan Province, Lianyungang, Jiangsu Province, and Wenzhou, Zhejiang Province.

       According to the survey, there are three main transmission routes of African swine fever in China: the transportation of pigs and their products in different places, the feeding of kitchen waste to pigs and the spread of viruses carried by people and vehicles, accounting for 16.3%, 42.9% and 40.8% respectively. Among them, the spread of viruses carried by kitchen waste feeding pigs and personnel vehicles accounts for the vast majority.

       In January this year, the Ministry of Agriculture and Rural Affairs formulated and issued the "Emergency Implementation Plan for African Classical Swine Fever Epidemic (2019 Edition)" to guide all localities to deal with the epidemic in a strict and standardized manner. The Ministry of Agriculture and Rural Affairs said that the current epidemic situation in China is in a state of sporadic distribution, and the epidemic situation is generally controllable. However, because the traditional farming structure is difficult to fundamentally change in a short period of time, the transmission route of the epidemic is complicated, and the prevention and control situation is still complicated and severe.