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Researchers from Chengdu Mountain Institute of Chinese Academy of Sciences measured Tianlu to select the route for disaster prevention in sichuan-tibet railway.

  Experts from Chengdu Institute of Mountain Studies, Chinese Academy of Sciences are on the spot. Xinhua News Agency reporter Jin Liwang photo

  Since ancient times, it has been difficult and dangerous to cross mountains and rapids from Sichuan to Tibet. Despite this, the pace of people laying "heavenly roads" has never stopped.

  In 1950, the Sichuan-Tibet Highway started construction. Later, after 19 years of hard construction by 110,000 soldiers and civilians, it was fully completed and opened to traffic in 1969, thus ending the history of entering Tibet from Sichuan only by people and animals.

  Now, in order to make this dangerous road more open, the construction of sichuan-tibet railway has also been put on the agenda and included in the national "Thirteenth Five-Year Plan". At the end of 2014, the Cheng Kang section and Lalin section of sichuan-tibet railway have started construction. At present, the construction of the whole line is being planned.

  How difficult is the most difficult "heavenly road"

  "Eight from eight volts", the cumulative climbing height exceeds 14,000 meters.

  Sichuan-tibet railway starts from Chengdu, Sichuan in the east and reaches Lhasa, Tibet in the west, with a total length of nearly 1,700 kilometers. It includes three sections: Cheng Kang Railway (from Chengdu to Kangding, which is divided into Chengya Railway and Yakang Railway) and Kanglin Railway (Kangding — Linzhi), Lalin Railway (Lhasa — Linzhi). Sichuan-tibet railway is designed to run at a speed of 200km/h (the speed limit is 160km/h). After completion, it takes only 13 hours to get from Lhasa to Chengdu.

  Compared with highways, the construction of railways is more difficult. How to avoid and prevent mountain disasters in railway line selection scientifically and reasonably has become a difficult problem to be overcome at present.

  In 2015, China Academy of Sciences deployed the science and technology service network project "Distribution Law, Risk Analysis and Prevention Experiment Demonstration of Mountain Disasters in sichuan-tibet railway", and the researchers of Chengdu Institute of Mountain Disasters and Environment of Chinese Academy of Sciences (hereinafter referred to as Chengdu Institute of Mountain Disasters of Chinese Academy of Sciences) were entrusted with an important task. "We hope to further develop the discipline innovation chain of mountain disasters from theory to technology to application demonstration, and explore the ‘ Science — Technology — Engineering — User ’ Technology service model. " Wen Anbang, director of Chengdu Mountain Institute of Chinese Academy of Sciences, said.

  In fact, the country began to explore sichuan-tibet railway as early as the early days of the founding of New China, and began to select routes in the 1990s. When we chose to build the railway into Tibet, we chose the Qinghai-Tibet, Sichuan-Tibet and Gansu-Tibet routes, but sichuan-tibet railway was temporarily put on hold because it was too difficult to build and the investment cost was too high.

  You Yong is the chief engineer of Chengdu Institute of Mountain Studies, Chinese Academy of Sciences. He admits that this is the most difficult and intractable task he has encountered in his career for decades.

  The construction difficulty of sichuan-tibet railway is rare in the world, and far exceeds that of the already-built Qinghai-Tibet Railway. More than 1,700 kilometers of lines have to go through "eight rises and eight volts", and the cumulative climbing height exceeds 14,000 meters. In the process of construction, builders will face four challenging problems: obvious terrain elevation difference, intense plate activity, frequent mountain disasters and fragile ecological environment. In other words, it is equivalent to building the world’s most technically difficult "giant roller coaster" between the most dangerous and complicated mountain canyons.

  For example, the section from Luding County to kangding city, which is only 50 kilometers, has to climb nearly 2000 meters. "In order to overcome this huge terrain elevation difference and avoid disaster-prone areas, about 80% of the road sections along the line should be built on bridges and tunnels." You Yong further explained that along the sichuan-tibet railway, it also passes through the active earthquake fault zone of the Indian Ocean plate and the Eurasian plate, and faces various complicated geological conditions such as earthquakes, frozen soil, avalanches, geothermal, caves, underground rivers and rockbursts.

  Why are there many mountain disasters?

  It spans 14 major rivers and 21 snow-capped mountains over 4,000 meters.

  After making a preliminary estimate of some difficult problems to be faced in the construction of sichuan-tibet railway, the researchers judged that "frequent mountain disasters" were one of the key factors to determine the success of the construction of sichuan-tibet railway.

  This assertion has also been widely endorsed by the industry. In October 2016, an event called "Solving the Mountain Disaster Problem in sichuan-tibet railway — — ‘ Challenges and Countermeasures of sichuan-tibet railway Construction ’ " The academic exchange meeting was held. When talking about this issue, the eight academicians at the meeting also reached a consensus, that is, "building a railway under such a complicated geological environment will inevitably face a lot of scientific and technical problems, among which mountain disasters will become the key control node of the whole line."

  "This is also the reason why the whole section from Ya ‘an to Linzhi in sichuan-tibet railway has not been started, because the mountain disaster problem faced by this section is the most serious and the construction is the most difficult, and it is still in the pre-feasibility study stage." Chen Xiaoqing, deputy director of Chengdu Mountain Institute of Chinese Academy of Sciences, said.

  What the team of experts from Chengdu Mountain Institute of Chinese Academy of Sciences has to do is to try to solve the "mountain disaster" problem in this section.

  According to the preliminary route plan, sichuan-tibet railway will cross the Hengduan Mountains, the plateau and alpine valleys in southeastern Tibet, and cross 14 rivers and 21 snow-capped mountains with a height of more than 4,000 meters.

  "According to our statistics, the mountain disasters that may be encountered along the line include landslides, mudslides, water damage, snow damage, ice damage, and sand sliding slopes." You Yong said, "There are only 399 disaster spots where glacial lake burst and ice-water debris flow may occur on the 271-kilometer-long section of Palong Zangbo, sichuan-tibet railway. In the 360-kilometer-long fresh water section, there are 310 mudslides and 241 landslides. "

  Why are mountain disasters so frequent and serious here?

  Kelvin Cui, an academician of China Academy of Sciences and deputy director of Chengdu Mountain Institute of Chinese Academy of Sciences, said: "There are three main reasons: First, it spans multiple seismic zones, with active structure, frequent strong earthquakes and strong erosion, and has extremely favorable geological environment conditions for disasters; Second, the terrain with high drop and steep slope in the middle and high mountains provides huge energy conditions for disaster development; Third, due to the influence of monsoon and westerly belt, the climate difference is obvious, which provides favorable climate and water source conditions for disaster development. "

  How to treat the key ills?

  The technical consultation report on mountain disasters across the board is expected to be completed by the end of this year.

  "Before giving the countermeasures, we must find out what is the regional distribution law of mountain disasters such as mudslides and landslides along the sichuan-tibet railway? How much influence do they have on railway engineering? How to scientifically divide the dangerous areas and safe areas of railway mountain disasters? " You Yong said, "In addition, sichuan-tibet railway will cross some places that our researchers have never observed before. Is there a mudslide there? How harmful is it? We don’t have any information in our hands, and we still need to investigate and study. "

  The researchers of Chengdu Institute of Mountainous Areas of Chinese Academy of Sciences first used remote sensing satellites to find out the number and distribution status of collapses, landslides and debris flows along the railway, and then conducted more detailed research and analysis by consulting historical data, field reconnaissance, field sampling, experimental analysis and numerical simulation.

  "Remote sensing images can’t see the internal structure of the slope, so it needs to be combined with field investigation." Li Xiuzhen, an associate researcher at Chengdu Institute of Mountain Studies, Chinese Academy of Sciences, said, "For example, we researchers must use some climbing ‘ Soil method ’ Climb to the top to find some traces that can be distinguished by the naked eye when the previous disasters occurred. According to these traces, we can calculate the scale, flow, impact speed and hazard mode of the disasters at that time. "

  Find out the situation of mountain disasters, what kind of prevention and control countermeasures should be taken?

  Chen Xiaoqing said: "In our researchers’ opinion, if the risk is particularly high, we will take ‘ Avoid ’ The way. If the problem can be solved and the cost can be saved, find a way to ‘ Governance ’ 。”

  For example, Ridigou is a debris flow ditch near kangding city, Ganzi Tibetan Autonomous Prefecture, Sichuan Province. "The risk assessment of mountain disasters such as debris flow, collapse and landslide in this ditch and its prevention countermeasures are one of the most important prerequisites for determining the route selection of this section of the railway." Liu Jinfeng, an associate researcher at Chengdu Institute of Mountain Research, Chinese Academy of Sciences, said.

  According to the previous route plan, a pier was originally set near the center of the Ridigou Railway Bridge. However, after investigation and research, researchers found that the Ridigou railway bridge may be affected by two kinds of collapse and rolling stone disasters. One is that the slope and dangerous rock disturbed by the project near the tunnel entrance may loosen and fall, and the falling rolling stone at a high place may move along the slope, which may cause harm to the railway line.

  "Therefore, we feel that this position takes ‘ Railway arch bridge scheme+gap dam retaining at the upstream of railway bridge+protection and drainage under railway bridge ’ The combination method is more suitable. " You Yong said, "Just like this, we have to find out the countermeasures for mountain disasters along the route. The technical consultation report on mountain disasters across sichuan-tibet railway is expected to be completed by the end of this year." (Reporter Wu Yuehui)

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On January 28th, 404,857 people in Hangzhou have taken nucleic acid samples, and 4 of them were positive in the initial screening.

  On January 28th, a press conference on the prevention and control of COVID-19 epidemic was held in Hangzhou, Zhejiang Province to inform the latest situation of the epidemic.

  At the meeting, it was reported that there are 914 nucleic acid detection points and 2,406 sampling stations in Hangzhou. Today, from 6:00 to 13:30, a total of 404,857 people were sampled, with 30,481 results, 30,477 negative results and 4 positive cases.

  At present, the main problem is that the temperature is low in rainy days, which brings a lot of inconvenience to the detection people and sampling personnel, and also affects the progress of sampling. To this end, the Hangzhou Health and Health Commission will take the following measures: First, strengthen the organization and management of the sampling team, and inform the public to queue up in an orderly manner according to the number of people in the queue, so as to avoid people getting together and queuing for too long. Second, the layout and quantity of sampling will be adjusted in time according to the distribution of people and the actual situation of residential areas, so as to ensure that citizens can participate in sampling nearby.

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I really want to go to your world and love you. Billion protagonists fall in love because of their special functions.


1905 movie network news The film directed and starring by was released on February 14, 2022, and the box office has exceeded 100 million by February 23.

The "understanding" and "love" of the two worlds cherish each other and go for love.

Directed by Sun Lin, the movie I Want to Go to Your World and Love You tells the story that an Yi, an assistant architect in Beijing (played by Zhou Renyi), and Andhadhun (played by Shi Baiyu), who are far away in Germany, are connected by an unexpected brain wave, and the two strangers can perceive each other.

The two strangers fell in love and killed each other at the beginning of synaesthesia, calling each other "irresponsible" and "unreasonable", and the process of adapting to this "special function" was full of jokes. After repeated "torturing each other" and "caring for each other", the two gradually felt the warmth and care of each other. In the collision between "understanding" and "love", they finally realized that the other person was the one who knew them best and bravely went for love.

Multi-platform and high word-of-mouth recommendation, happy and sweet double harvest

Since the film was released, the box office has exceeded 100 million, which is inseparable from the enthusiastic recommendation and high score evaluation of the audience. The film gained a high reputation in previous rounds of screening, and the heat continued to ferment after the release. After watching the movie, many viewers said that the movie not only had a sweet atmosphere, but also brought joy, especially because of the "butterfly effect" caused by fantasy settings, which attracted constant laughter in the theater.

Many other scenes in the film also aroused strong resonance among the audience. As depicted in the movie, even if two people are separated from Wan Li, no matter how distant the time and space are, they will not be an obstacle when they are truly connected. In addition, the film shows the relationship between the two sexes in love in a fantastic way, which makes it more interesting and more thought-provoking. The integration of the concept of "the moon and sixpence" is also thought-provoking — — In the pursuit of life goals, we always hesitate between sixpence and the moon. While choosing our own moon, we should also choose people who are willing to enjoy the moon with you.


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Global news: the yield of 10-year US bonds hit a 14-year high, and the rebound of US stocks came to an abrupt end.

  On Wednesday, local time, the rebound of US stocks came to an abrupt end. Overnight, the yield of 10-year US bonds soared again, returning to above 4%, hitting the 4.1% mark, the highest level since the 2008 financial crisis. Coupled with the record inflation in the euro zone and the highest inflation in the UK in 40 years, the central bank’s hawkish interest rate hike is expected to rise, and European and American stock markets are under pressure, and all major indexes have closed down.

  As a result, the expectation that the Fed will continue to raise interest rates aggressively has aggravated the worries about economic recession, and at the same time, it has also curbed the optimism brought by the earnings season. Especially in Tesla’s after-hours financial report, although the profit exceeded expectations, the revenue and gross profit margin were lower than expected, the average selling price of cars fell from the previous month, the revenue of "selling carbon" hit a new low in one year, and the strong dollar was also dragged down, falling more than 5% after hours.

  It is worth mentioning that Musk put another "swear word" on the conference call. Tesla’s market value will exceed the sum of Apple and Saudi Aramco, and at the same time, it may buy back 5-10 billion US dollars of shares, but at present, this has limited effect on its stock price.

  In terms of energy, the United States confirmed the sale of 15 million barrels of strategic oil reserves. Biden called on oil companies to suspend stock repurchase, but this failed to appease the market, and the US oil market rose by more than 4%.

  In other respects, the British cabinet was in deep crisis, and the senior adviser and home secretary left. Trass apologized again but refused to resign.

  [overnight U.S. stocks]

  Among the large Chinese stocks, Alibaba fell 6.64%, Baidu fell 8.82%, Netease fell 5.15% and Pinduoduo fell 6.65%.

  Among the large American technology stocks, Apple rose 0.08%, Amazon fell 1.11%, Google A fell 1.13%, and Nye soared 13.09%.

  [global index]

  [global goods]

  The main contract of WTI crude oil closed at $85.02 per barrel, up 3.59%; The main contract of Brent crude oil closed at $92.57 per barrel, up 2.82%; The main contract of crude oil in the previous period closed at 669.90 yuan per barrel overnight, up 1.13%.

  Overnight, the Shanghai gold main contract closed down 0.37% to 389.34 yuan per gram; The main contract of Shanghai Bank closed down 0.25% to 4,389.00 yuan per kilogram.

  [overnight news]

  Biden called on oil companies to suspend stock repurchase, and officials announced the release of crude oil reserves, saying that more may be released in the future.

  Biden once again attacked energy companies and called on oil companies to suspend repurchase. He said that oil companies should not use profits to buy back stocks or pay dividends during the conflict between Russia and Ukraine. Oil companies should use the money to increase production to help reduce the fuel price of consumers. The latest data shows that the United States has only 25 days of diesel supply, the lowest since 2008.

  The offshore RMB exchange rate against the US dollar fell below the 7.27 mark and broke through the previous low.

  Compared with the previous trading day, the RMB fell by more than 400 points, and set a new low of 7.2675 on September 28th.

  Federal Reserve’s Beige Book: Inflation is still at a high level, and it is more pessimistic about the US economic outlook.

  According to the Beige Book, respondents have become more pessimistic about the prospects of the US economy in the context of growing concerns about weakening demand; Although there are signs of a slowdown in the US labor market, it is still tense, and the pressure of rising wages still exists. The Beige Book predicts that the future price increase will be generally moderate.

  Britain’s new cabinet is in deep crisis: senior adviser and home secretary leave, Trass apologizes but refuses to resign.

  The new leadership of British Prime Minister Trass has only been in office for two months and is in deep crisis. At the end of September, Trass just fired Finance Minister Kovoten. On Wednesday, local time, Interior Minister braverman announced his resignation. Earlier, Jason Stein, one of Trass’s most senior consultants, had been suspended.

  Britain’s CPI in September exceeded expectations by 10.1% year-on-year and returned to the highest level in 40 years.

  Affected by food prices, both CPI and core CPI in the UK unexpectedly accelerated in September, consolidating the expectation that the Bank of England will raise interest rates by 75 basis points in November. Britain’s CPI in September was 10.1% year-on-year, expected to be 10%, and the previous value was 9.9%, and the year-on-year growth rate returned to the highest level in 40 years; In September, CPI was 0.5% month-on-month, expected to be 0.4%, and the previous value was 0.5%. The pressure is once again on the Bank of England.

  [company news]

  Tesla’s profit exceeded expectations, but its revenue and gross profit margin were lower than expected.

  In the third quarter, Tesla’s profit was higher than expected, close to a record high, and its revenue hit a single-season high, but its gross profit margin was lower than expected. The average selling price of cars fell month-on-month, and the revenue from "selling carbon" hit a one-year low, saying that the negative impact of foreign exchange on profits was $250 million. Tesla reiterated that it expects the average annual delivery growth rate to reach 50% in many years, saying that the output of factories in Shanghai and other places has reached a single-season high, and the Semi truck is scheduled to start delivery in December. The output of 4680 batteries has tripled from the second quarter, and the energy storage in the third quarter has reached a new high, increasing by 62% year-on-year. After the financial report was released, Tesla’s share price once fell by nearly 7%. Musk said that the delivery volume in the fourth quarter will reach a new high, and the quarterly demand will be "quite good". The after-hours decline narrowed to less than 3%, but CFO said that it is expected that the annual delivery growth rate this year will be less than 50%, and the after-hours decline will expand.

  Musk: Tesla’s market value may exceed the sum of Apple and Saudi Aramco.

  Musk said that the market value of Tesla may exceed the sum of Apple and Saudi Aramco. It is estimated that in 2022, the output growth rate is expected to exceed 50%, and the vehicle delivery growth rate will be lower than 50%. The power problem in Germany will not affect the production of the Berlin factory. Cybertruck pickup truck is expected to be put into production in the middle of next year. It is estimated that 50,000 Semi electric trucks will be produced in 2024. Note: Up to now, the total market value of Tesla is 695.7 billion US dollars, that of Apple is 2.31 trillion US dollars, and that of Saudi Aramco is 7.86 trillion Saudi riyals (about 2.09 trillion US dollars).

  Big price increase across the board! New fruit powder on Apple iPad: low cost performance.

  On the evening of October 18th, Beijing time, Apple released the 10th generation iPad and the new iPad Pro through official website. The starting price of both products has been greatly raised. Among them, the capacity of the tenth generation iPad is still 64GB and 256GB, and the starting price directly rises by 1,100 yuan, starting at 3,599 yuan. The new iPad Pro has 11-inch and 12.9-inch screen sizes, and its capacity is the same as that of the previous generation, with 128GB, 256GB, 512GB, 1TB and 2TB versions. The starting price of 11 inches rose by 600 yuan, starting from 6799 yuan; The starting price of 12.9 inches rose in 800 yuan, starting from 9299 yuan.

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The cold wave blue warning will be released, and the low temperature in the central and eastern regions will intensify.

  CCTV News:According to WeChat official account, China Meteorological Bureau, a strong cold air will affect China from January 22nd to 24th (the first day to the third day of New Year’s Day), and there will be obvious gale and cooling weather in the central and eastern regions. As a result, the temperature in the central and eastern regions will be significantly lower than normal. The Central Meteorological Observatory issued a blue warning of cold wave at 18: 00 on January 21st!

  Gale cooling forecast:Affected by strong cold air, it is estimated that the temperature in most parts of central and eastern China will drop by 6-10℃ from 20: 00 on January 21 to 08: 00 on January 25.The temperature in northern North China, eastern Northeast China and eastern Jiangnan dropped by 14℃, exceeding 18℃ locally.There are 4 to 6 winds and 7 to 8 gusts in the above areas, and some areas in western Gansu, western Inner Mongolia and Ningxia have sand or floating dust. There are 6-8 winds and 9-10 gusts in most offshore areas of China. The lowest temperature in the process appears on the morning of 24th to 25th, and the lowest temperature line of 0℃ will be located in the east of Yunnan, south of Guizhou and north of South China.

  It is estimated that the temperature in the central and eastern regions will be 4 ~ 6℃ lower than normal, and that in the eastern part of North China and the eastern part of Northeast China will be 8 ~ 10℃ lower. The lowest temperature in most parts of central and northern Heilongjiang will reach-35 ~-40℃, which may be close to or below the historical extreme value in the same period.

  Among them, from 20: 00 on January 21 to 20: 00 on January 23, the temperature in most parts of Inner Mongolia, the south-central part of Northeast China, northern Xinjiang, Hexi in Gansu, southern Ningxia, northwestern Shanxi and northern Hebei will drop by 6 ~ 8℃ successively, and the temperature in most parts of central and eastern Inner Mongolia, eastern Jilin and Liaoning can reach 10 ~ 14℃. Some of the above areas are accompanied by 4-6 winds and gusts of 7-8. There are 6 ~ 8 winds in the northern and eastern seas, and the gust is about 9.

  Rain and snow forecast:It is estimated that there will be small to medium snow or sleet in parts of eastern northwest, central Inner Mongolia, northern North China, northeast China, eastern Huanghuai and eastern Southwest China from 22nd to 24th, and freezing rain in western Guizhou. There is light rain in the south.

  In addition, from 24th to 28th, there were persistent snowstorms in southwest Tibet, with heavy snowstorms and local blizzards from Pulan to Nyalam, which were extremely extreme.

  Meteorologists reminded that the cold air process has a wide range of influence and significant cooling, which will aggravate the low temperature in the central and eastern regions. At present, it is the Spring Festival holiday, so please take measures to keep out the cold in advance, especially for passengers on their way home. Please pay attention to the latest forecast information and pay attention to traffic safety! The snowstorm in western Tibet lasts for a long time, so please take precautions!

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The best age for HPV vaccination is 9 to 14 years old.

  Cervical cancer is one of the common gynecological cancers and one of the few cancers that can be prevented by vaccine. Experts suggest that the incidence of cervical cancer in China tends to be younger, but the women who are willing to vaccinate HPV (human papillomavirus) vaccine are generally older. It is suggested that more attention should be paid to the vaccination of young women.

  Bi Hui, the chief physician of the Department of Obstetrics and Gynecology of Peking University First Hospital, found that most of the outpatients who came to consult about HPV vaccination were women over 25 years old, and teenagers aged 13 to 18 only occasionally saw them, and few parents brought their daughters to consult about HPV vaccination.

  Bi Wei said: "In China, bivalent and tetravalent HPV vaccines are currently approved for women aged 9 to 45, and nine-valent HPV vaccines are suitable for women aged 16 to 26. HPV vaccine has the best effect before sexual life, and teenagers should be the key population. The best vaccination age recommended by the World Health Organization is 9 to 14 years old. Our country’s guide recommends 13 to 15 years old as the key population. "

  According to reports, viruses such as HPV are divided into multiple subtypes, which can be classified into high-risk and low-risk types. High-risk type can cause cervical cancer, anal cancer, oropharyngeal cancer, etc. Low-risk type can cause flat wart, common wart and condyloma acuminatum on the skin. The main route of transmission of high-risk HPV is sexual transmission.

  Bi Wei introduced that in recent years, a study of more than 130,000 gynecological outpatients in eight tertiary hospitals across the country showed that the infection rate of high-risk HPV was nearly one-fifth.

  Studies have shown that bivalent and tetravalent HPV vaccines can prevent about 70% of cervical cancer and nine-valent vaccines can prevent about 90% of cervical cancer due to the different number of preventable virus subtypes. Experts emphasize that vaccination can greatly reduce the risk of cervical cancer.

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Ten Common Faults of "Collection" Automobile Gearbox and Their Causes Analysis

The gearbox of a car, like the engine, is an oversized part of the car, and the cost can account for 15-30% of the whole car price. Generally, there will be no fault in the gearbox, but a fault is a big trouble. Today, we selected ten common faults of automobile gearbox and analyzed them one by one to share with you.

Common fault 1: oil leakage

Fault analysis:There is oil oozing from the gearbox housing or oil pan, one reason is that the seal is aging and the seal is poor; Another reason is that the shell has trachoma caused by poor manufacturing process.

Common faults 2: delayed entry, impact and engine flameout.

Fault analysis:The normal standard for entering the gear is to feel entering the gear within 1-1.2 seconds. When the brake pedal is released, the vehicle will slowly start without stepping on the accelerator pedal and gradually extract the speed of 10-20km/h..

If it is more than 2 seconds after entering the file, locate the delay of entering the file. This situation needs immediate repair.

If there is a strong impact feeling when entering the gear, the impact will be positioned.It should be noted that any automatic gearbox has a certain degree of impact when it enters the gear.If there is no feeling at all, it means that there is an internal fault. However, this shock is unacceptable, and the causes of this fault phenomenon are very complicated, including many aspects except gearbox.

The situation of dead fire when entering the gear is that the engine will die when entering the gear. This problem is more obvious when the car is cold. This problem is caused by gearbox problems and other body systems.

Common fault 3: hang in D or R, and the engine is turned off.

Fault analysis:This failure may be caused by the damage of the locking solenoid valve or the card issue of the locking control valve.

After shifting into D or R gear and releasing the brake, the vehicle does not move. Or the car can travel a short distance after the cold car starts, but it can’t travel in the hot car state. This situation is mostly caused by the damage of input shaft or reverse clutch, or the damage of D/R brake. It may also be that the automatic gearbox is seriously leaking oil and is seriously short of oil. The connecting rod or cable between the shift lever and the rocker arm of the manual valve is loose, and the manual valve is kept in neutral or parking position.

Common fault 4: the oil inlet screen is blocked; The main oil circuit is seriously leaking; Oil pump damage

Fault analysis:The impact and impact of vehicle shifting during driving is also a common fault phenomenon of automatic gearbox, which may be caused by too dirty gearbox oil, resulting in stuck valve body.

Common fault 5: the gearbox slips and the acceleration is weak; Transmission water inlet

Fault analysis:When the car is running, there is the sound of engine idling during the acceleration of the gas valve, and the speed of the car does not increase, which makes the whole car feel weak. This phenomenon is mostly caused by the burning of the clutch plate. Water enters the gearbox due to external reasons, resulting in abnormal operation of the gearbox. This may be due to oil in the water tank or water entering from the gearbox vent cap.

Common fault six: abnormal sound

Fault analysis:Abnormal sound can be divided into many situations. (1) is the abnormal sound of the bearing. Generally, the abnormal sound of the bearing is closely related to the rotational speed. The higher the rotational speed, the more screams there are.

(2) is the differential or main transmission gear abnormal sound, this kind of abnormal sound generally appears in the speed of 50-70 km is more obvious, because the meshing surface of the gear is not

Similarly, when refueling, the noise is obvious, and the noise of releasing the throttle is obviously weakened.

(3) is the abnormal sound of hydraulic system such as oil pump, which is closely related to the speed, but has nothing to do with the speed. When the speed is high, the oil pump is blocked to suck oil, which leads to screaming. It should be noted that the gearbox system works together with the bow | engine, chassis and other parts, and many sounds are mixed together, so it is not easy to identify it.

Common Fault 7: Odor in the box

Fault analysis:The gearbox works by hydraulic oil. When the oil temperature is too high, it will produce some combustion, and these peculiar smells will come out, which shows that some executive parts in the gearbox are not working properly.

Common fault 8: Automatic shift time is too long or too short.

Fault analysis:Generally, automatic gearboxes have a specific shift speed and speed. If it is found that the shift time is suddenly too long or too short, it means that the transmission ratio of the gearbox is out of proportion, and at the same time, it will feel that the engine speed is too high. What’s more, the gearbox does not shift gears, which indicates that there is something wrong with the gearbox.

Common fault 9: high engine speed while driving

Fault analysis:This problem is divided into two situations: high speed during steady driving and high speed during speed increase.

The high rotating speed during the steady process is caused by the failure of the high gear of the gearbox or the failure of the internal locking clutch of the button changer, so the gearbox needs to be repaired immediately.

The excessive speed in the speed-up process is controlled by the fuzzy logic of the electronic control system of the gearbox, so this standard needs a certain professional level to be completed.

Common fault 10: Engine idling

Fault analysis:Engine idling generally occurs in two situations.

First, when the vehicle is in a steady state, the bow and engine suddenly idling, and then it returns to normal when the speed slows down.

This situation generally shows that the gearbox suddenly drops from high gear to low gear in a short time, and the problem may be in the control system or cooling system, but there is nothing wrong with the gearbox itself.

Second, there is a short-term slip and idling phenomenon during acceleration or gear shifting.

The intuitive feeling is that the second one is not as powerful as the first one. In fact, it is just the opposite. Most of the problems of the second one lie in the clutch and other related links in the gearbox. It takes a lot more time and cost to deal with the complete disintegration and overhaul of the gearbox.

Have you learned everything?

About automobile knowledge and daily maintenance, repair, welcome private letter exchange.

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Talk about cancer, don’t change color, and understand these knowledge points

Talk about cancer, don't change color, and understand these knowledge points

  April 15th to 21st this year is the 30th National Cancer Prevention Publicity Week, with the theme of "Comprehensive Policy"
Scientific cancer prevention. " Cancer is the main disease that threatens the health of Chinese residents. People are afraid of cancer, but they don’t understand it systematically. To this end, the reporter combed some knowledge points about cancer prevention and cancer prevention.

  -which cancers have a high incidence?

  Recently, the World Health Organization’s International Agency for Research on Cancer released the latest global cancer burden data, and China’s National Cancer Center also published "Analysis on the Prevalence of Malignant Tumors in China in 2022" in the Chinese Journal of Cancer. The results show that in 2022, there were 2.48 million new cases of lung cancer in the world, and it became the "largest cancer in the world" again. The disease burden of lung cancer in China is more prominent, ranking first in the sequence of cancer incidence and death. The top ten cancers in China are lung cancer, colorectal cancer, thyroid cancer, liver cancer, gastric cancer, breast cancer, esophageal cancer, cervical cancer, prostate cancer and pancreatic cancer.

  -cancer cases "men and women are different"

  According to the latest data of "Analysis of Cancer Epidemiology in China in 2022", in 2022, there were about 4,824,700 new cancer cases in China (2,533,900 males and 2,290,800 females). Among the male population, the top five high-risk cancers are lung cancer, colorectal cancer, liver cancer, gastric cancer and esophageal cancer in turn, accounting for about 65% of the total number of new cases of male cancer. Among women, the most common cancer is lung cancer, followed by breast cancer, thyroid cancer, colorectal cancer and cervical cancer, accounting for about 64% of the total number of new cases of female cancer.

  -The incidence of cancer is "younger"

  In the past, cancer was usually thought to occur in middle-aged and elderly people over 50 years old. In the past 30 years, the incidence of cancer among people under the age of 50 has been rising all over the world. According to the analysis data, the incidence of cancer in China is relatively low in the age group of 0-34, but it increases significantly from the age group of 35-39 (about 125.24 per 100,000 people) until it reaches its peak in the age group of 80-84 (about 1461.63 per 100,000 people). The overall incidence rate of men in the age group of 25 to 54 is lower than that of women, but after 60 years old, the incidence rate is higher than that of women.

  Most nodules are not cancer.

  Pulmonary nodules are not equal to lung cancer, and not all of them will develop into lung cancer. 95% of pulmonary nodules found in general physical examination are benign, but some benign lesions may turn into malignant in the long run. Thyroid nodules are common diseases in endocrine system. About one fifth of adults in China have thyroid nodules, and most benign thyroid nodules do not need special treatment, so regular follow-up is enough. Breast nodules are not a single disease, but a symptom or physiological state. Clinically, there are more benign breast nodules and fewer malignant ones, so high-risk groups should increase the frequency of physical examination appropriately.

  Smoking is still the main risk of cancer.

  According to The Lancet, nearly 4.45 million cancer deaths are caused by risk factors such as smoking, drinking and obesity, accounting for 44.4% of all cancer deaths in the world. Smoking is still the main risk factor of cancer in the world. Among the male population in China, the number of lung cancer deaths caused by smoking accounts for 24%. National Health Commission’s "Report on the Health Hazards of Smoking in China 2020" pointed out that from 2007 to 2017, the global smoking rate of people aged 15 and over decreased, about 19.2%, but in 2018, the smoking rate of people aged 15 and over in China reached 26.6%. In addition, as high as 68.1% of non-smokers in China have been exposed to second-hand smoke in public places, and the harm cannot be ignored.

  -men should also prevent breast cancer.

  Breast cancer is not exclusive to women, and men also have breast tissue, and they may also get breast cancer. However, there are relatively few breast tissues in men, and male breast cancer is rare. In 2022, for example, there were 357,200 cases of female breast cancer in China, and only 0.41 million cases of male breast cancer. Common symptoms of male breast cancer include breast pain, nipple depression, nipple rupture, nipple itching and desquamation, nipple discharge and bleeding. When breast tumors are found at the beginning, especially those near nipples, they should be examined early.

  -cancer prevention physical examination for high-risk groups should be conducted regularly.

  Anti-cancer physical examination is not the same as general physical examination. The general physical examination is aimed at the health examination of the general population, while the anti-cancer physical examination is aimed at the high-risk group of cancer. If you have a family history of cancer, long-term exposure to toxic and harmful substances or occupational exposure, long-term or heavy smoking and drinking, you should have regular cancer prevention physical examination.

  Reporter: Zhao Dandan, Dong Ruifeng, Ma Xiaoyuan and Hu Ge.

  Cartography: Hugo

[Editor in charge:

]

通过admin

Scientists have cultivated "human monkey embryos" to be self-conscious after birth.

  Juan Carlos Izpisua, a 59-year-old Spanish scientist, successfully cultivated the "human pig embryo" in 2017. Now he and his team have completed the experiment of "human monkey embryo" again, and the embryo has been formed and can be born at any time. However, this plan was forced to stop when the embryo was 14 days old, because other scientists were worried that if the human monkey was really born in the end, it would probably produce self-awareness and eventually lead to self-destruction.

  According to Spanish media reports, the research team of Salk Institute in California and Catholic University of Murcia (UCAM) in Spain conducted this experiment this year. They implanted human stem cells into monkey embryos, and finally the embryos gradually grew out of human tissues, and they formed smoothly, and they could also be born from female monkeys normally. Carlos pointed out that the formed stem cells can be used in human organ transplantation in the future, which is a major breakthrough in medical development.

  However, many scientists believe that human monkey embryos will violate morality and ethics. The 14-day-old human monkey embryo was ready to develop the central nervous system, but under the pressure from the outside world, the Carlos team had to stop the plan urgently. á ángel Raya, director of the Barcelona Center for Regenerative Medicine, questioned: "If the brains of human monkey embryos finally develop human neurons, it means that they will have self-awareness." There is an ethical problem of hybridization between humans and animals.

  Even though the experiment of human monkey embryos has come to an end, Carlos still insists on trying to combine rodents with human stem cells. "It is also possible to try to use embryos of non-human primates in the future." He also said that he hoped to open up a new path for heart and eye transplantation.

通过admin

No clothes, no robes: designing "barrier-free clothing" for the disabled

  Zhang Xiaoli is designing clothes. The picture is provided by the interviewee

  Xu Jinze is massaging his clients. The picture is provided by the interviewee

  Life photos of Ganshanna. The picture is provided by the interviewee

  Zhang Xiaoli’s team designed a dress for Ganshanna. The picture is provided by the interviewee

  Hu Wenbing was awarded the honorary title of Hubei Model Worker. The picture is provided by the interviewee

  "Try not to go out and drink water."

  It takes Wang Juan 20 minutes to an hour to get dressed once.

  As a paraplegic patient with cervical spinal cord injury, she has no consciousness below the clavicle, only her arms can move slightly. Dressing is the first topic every day among the many difficulties she has to face in life.

  After years of exploration, Wang Juan has developed a suit of dressing procedures.

  First of all, she needs someone to help her. This person is usually her mother. Every morning, Wang Juan lies flat on the bed, and her mother lifts her leg, first puts the foot cover into trouser legs, and then pulls the waistband up a little. Usually at the thigh, the pants can’t be pulled. Mother wants Wang Juan to lie on her side, lift her waist and thighs, and then continue to pull the pants until she can’t.

  Then the other leg, repeat the same process until the pants are completely put on.

  "It’s like a pancake that has been tossed from side to side." Wang Juan teased himself.

  Put on her pants and she can be moved to a wheelchair to put on her coat. The upper body is out of control, so she can only lie in her mother’s arms and keep her back hanging with her mother’s support, so that the clothes piled up at the shoulder and neck can be pulled down.

  There are few clothes in summer, and in winter, from thermal underwear to knee pads, you have to put them on your body layer by layer, so Wang Juan chooses to go out less.

  I have to bend down to dress my daughter. Wang Juan’s mother suffers from lumbar muscle strain. Although she has raised the bed and put on an auxiliary belt, she still needs to rest several times during dressing. Looking at all this in bed, Wang Juan couldn’t help thinking, "What should I do if my mother can’t take care of me one day?"? I want to go back to the original appearance and stay in bed? "

  There are more than 85 million disabled people in China. In recent years, their situation has attracted more and more public attention, and the construction of barrier-free facilities in public spaces has been improved. However, in private spaces, they still have many individual and specific needs, and dressing is one of them.

  For Li Feiyu, 24, dressing is no longer a problem. When she was 7 years old, she was paralyzed by acute myelitis, and for the next 17 years, she was accompanied by a wheelchair. The mother did not take care of her daughter as a weak person, but asked her to take care of herself as much as possible within her ability.

  Li Feiyu can’t remember the details of learning to dress as a child, leaving only the impression of "very hard and difficult". What she remembers deeply is a set of dressing movements that have been practiced. Li Feiyu feels that it is more difficult for many people who encounter disability difficulties in adulthood to learn to wear clothes than themselves.

  Li Feiyu works as a volunteer tutor in a public welfare project called "Life Reconstruction", teaching people to wear undresses in wheelchairs. I can’t talk about any skills. Most of the time, the tutor can only do it by himself. By repeatedly undressing, the students can follow suit.

  It is not difficult to learn the process and skills. After two or three days of classes, most students can master the basic skills. The hard part is that after that, they need to let their skills and limbs run in for a long time, and finally find the best dressing tips for them.

  Li Feiyu remembers a former weightlifter. After the girl was paralyzed by spinal cord injury, she became strongly dependent on her parents and relatives and refused to take care of herself. When she first entered the training camp, she called the nurse for help in everything. Li Feiyu patiently guided her and taught her how to dress independently. Pants can’t be lifted up, and girls used to think that they were not strong enough. "But she is a weightlifter. It can’t be a matter of strength. She just didn’t find the trick." Li Feiyu recalled.

  "This is a cognitive problem. Many disabled people think that I am sick, I can’t, and others have to help me. This concept is very dangerous. I hope disabled friends can have a more independent life." Wang Juan said.

  "Independence" is limited after all. For example, when going to the toilet, the reporter learned in the interview that many wheelchair users with lower limbs paralysis will try not to drink water when going out, because going to the toilet is very troublesome. They need to lift their bodies from the wheelchair with their arms, and then one person will help them to take off their pants. Because their lower limbs can’t stand, they can’t sit on the toilet in a normal posture like ordinary people. Someone needs to set them up and ride backwards on the toilet with the barrier-free handrail.

  In 2006, Wang Wenjuan, who taught in the Department of Fashion and Costume Design of Beijing University of Technology, went to Chaoyang District Disabled Persons’ Federation for investigation. A wheelchair user calmly showed her the whole process of going to the toilet, while the scholar cried.

  She thought, there is a surplus of fashion for the able-bodied and the disabled have never owned their own clothes in the real sense. "We should see more of the needs of these minorities."

  Real designers are not designers.

  The concept of "barrier-free design" was born in the architectural field at the beginning of the 20th century. The original intention of this concept is to create a "convenient, safe, equal and participatory" space for the disabled by using modern architectural design skills.

  At the beginning of this century, in China, few people tried to combine "barrier-free" with "clothing design". Therefore, when the design team of Beijing University of Technology began to do relevant research, everything seemed to "cross the river by feeling the stones".

  Wang Wenjuan recalled that she and her team members sought support from the Disabled Persons’ Federation and set up a research meeting. However, most people with disabilities are inconvenient to go out, so they go to other activities organized by the Disabled Persons’ Federation to conduct on-the-spot research while the participants are resting. In order to better understand the immediate needs of the disabled, they will try to reconstruct the scene, such as tying their arms with ropes to simulate armless people, or wearing protective gear to experience the feelings of hemiplegic patients.

  In such research, they found some real needs. For example, most armless people use their feet instead of their hands, so they need to consider adding more functional designs to their lower body clothes, "putting pockets on their legs"; The underarms of crutches bear pressure and friction for a long time, so it is necessary to consider increasing the wear resistance and breathability of the underarm fabric of their tops; Visually impaired people have higher requirements for shoes. When they walk, they usually need to "explore the road with their feet", and the wear rate of shoe tips is high.

  Different types of disabled people have different needs for clothing. Even people with similar disabled parts, individual differences in concept, symptoms and body shape make their demands for clothing different. These demands are hidden and complicated, which put forward very high requirements for the preliminary research work of the design team of Beijing University of Technology.

  "Wheelchair users" is the research focus of the design team of Beijing University of Technology. On the one hand, they have the most prominent clothing barriers, and on the other hand, people with physical disabilities are the largest in all disability categories, accounting for about 29%.

  For "wheelchair people", clothing design should not only realize the basic functions such as "putting on and taking off conveniently", but also pay attention to the needs of many details. For example, pants should be high-waisted, because they usually need to wear diapers to go out, and high-waisted pants can cover the upper edge of diapers; The crotch design needs to be wider than ordinary people’s pants, because wheelchair users sit for a long time all the year round, and the waist and buttocks are easy to accumulate fat; Cuffs are easy to wear because they often push wheelchairs, and at the same time, complicated design should be avoided to prevent them from being involved in wheelchairs; For men, ordinary belts and front crotch zippers may cause sedentary discomfort.

  "People with disabilities are eager for us to solve the problem. In fact, they didn’t have much idea about clothes before, thinking that clothes should be worn like this and they are used to it." Wang Wenjuan said.

  Before understanding the concept of "barrier-free clothing", Zhang Xiaoli was such a patient. At the age of 11, she was forced to sit in a wheelchair because of the severe kyphosis deformity of 180 degrees, which compressed her nerves and caused paralysis of her lower limbs.

  "I used to feel unconsciously that there were no clothes suitable for us. I couldn’t buy clothes and I couldn’t wear the confidence of ordinary people." Zhang Xiaoli recalled, "I have never worn a skirt beautifully, and it is my biggest dream to wear a dress properly."

  Twelve years later, 23-year-old Zhang Xiaoli finished spinal orthopedic surgery and put on a skirt. She cried happily, which also prompted her to think further: "Why are there no clothes specially made for the disabled?"

  In 2021, Zhang Xiaoli came across the enrollment brochure of Chengdu Textile College and came up with the idea of making clothes for the disabled. She applied for this school and began to study fashion design. With the support of her teachers, she established a design team of "barrier-free clothing".

  She named this project "23-degree Clothing Setting" because in her hometown of Aba Prefecture, Sichuan Province, 23 degrees Celsius is the most comfortable temperature, and she also learned that the most comfortable temperature that human body can feel is 23 degrees Celsius.

  "This is what I understand as barrier-free clothing. People with disabilities can find the most suitable and comfortable feeling by wearing such clothes." Zhang Xiaoli said.

  In Wang Wenjuan’s view, the core of "barrier-free clothing" is its functionality, and "solving problems is the first purpose". For example, she and her team designed the "barrier-free and convenient pants" for wheelchair users, and designed the pants as a piece of cloth-style fully open style. Instead of lying on the bed as before, they can be spread on the wheelchair, sit directly on it, and then zip the open cloth edge. At the same time, in order to solve the toilet problem of wheelchair users, this team has made a crotch design that can be opened and closed directly from behind, reducing the steps of wearing and taking off.

  Wang Wenjuan recalled that to design a barrier-free garment, it is necessary to know the actual needs of the disabled people through investigation and study, and make repeated measurements and communication during the design process to constantly confirm the specific situation of the wearer.

  "It’s not a one-off event, but an iterative process." Wang Wenjuan said, "So the real designers of barrier-free clothing are not the designers themselves, but those with disabilities. We just help them complete the design according to their needs."

  Put it on, not hide it.

  Zhang Peng, a professor at the Department of Fashion Design of Beijing University of Technology, pointed out that it is important to consider the functionality when designing barrier-free clothing, and at the same time, it is also necessary to consider the wearer’s acceptance in psychology and emotional dimension, and it is necessary to pay attention to both function and aesthetics.

  In the survey, the team found that when people with disabilities are asked about their demands on the appearance of clothes, their expression is often: "Please let me be like a normal person."

  "Being normal" is Ganshanna’s dream.

  Similar to Zhang Xiaoli, Ganshanna suffers from severe scoliosis. Looking from the back, her right waist is empty, while her left waist protrudes high, and the height difference between her shoulders is significant.

  When she was a child, Ganshanna never dared to think about her "favorite clothes" because she could only wear "suitable clothes". When mother and grandmother buy clothes for her, the first principle has always been "how to better cover up the physical abnormality".

  Ganshanna wears a lot of clothes that she doesn’t like, but she never asks, "because I think it’s good that I can have clothes to wear."

  She drew her longing on paper. The clothes she likes but can’t wear are quietly hidden in the album by her. "It seems that they belong to me after painting." She remembers that there was a beautiful girl in the class who had beautiful and inexhaustible clothes. Ganshanna was a little jealous, but more envious. "I want to be friends with her, and I want to be close to my ideal type."

  The reality is that Ganshanna’s fantasy is always broken by her classmates’ abuse of "monsters". She suppressed her desire for beautiful clothes. "I don’t think anything a little better suits me, so I can’t think about pursuing it anymore."

  Wang Juan and Ganshanna have similar mental processes.

  Recalling the days before the car accident at the age of 19, Wang Juan would talk about her fighting with friends, running, shopping and wearing high heels herself.

  There used to be many pairs of high heels in Wang Juan, with different materials, colors and heel heights … … Fill the shoe cabinet. Later, she got into a wheelchair and threw away all her high heels.

  She said that you don’t need many shoes in a wheelchair, because you don’t need to walk, and a pair of shoes can last for a long time. For her paralyzed lower limbs, a pair of shoes is far more important than "good-looking". Give her shoes, mother should squat down in front of her legs, try to loosen her knees, and then slowly put her feet into the shoes. There is always a toothbrush in the storage bag on the back of her wheelchair. When she can’t put on her shoes, her mother will use the toothbrush back to smooth the toes in the shoes.

  Wang Juan always wears those pairs of shoes that are convenient to put on and take off, and more importantly, "I don’t want to see my old high heels again."

  A few years before the accident, Wang Juan was lying in bed all day, counting the folds on the curtains, counting from left to right, and counting the concave surfaces before counting the convex surfaces. "That’s the only place my eyes can see except the ceiling.".

  At that time, she no longer had any expectations for life and the future.

  The turning point came in 2015. Teachers from the local Disabled Persons’ Federation Rehabilitation Center found Wang Juan and invited her to participate in a public welfare training camp for people with spinal cord injuries.

  "I don’t know how to describe it in words, but this training camp has such magic. You have found a group life similar to yours. When you see others’ self-confidence and cheerfulness, you will feel that I can change my life and live well."

  Wang Juan recalled that when he first entered the camp, many people didn’t wear shoes, or wore colorful thick-soled wool socks knitted by rural elders. She explained that these people are at home all the year round and have no need to go out, so they don’t need shoes; Or they want to continue the state at home, what it is like at home, and it is still the same outside.

  There is a boy with a head of hair that obviously collapses on one side. Wang Juan thinks of herself. She also has the same hairstyle when she is in bed all the year round. She used to love to wear clothes, go shopping and buy fashion. After paralysis, she wore a flower sleeping jacket all day. "I don’t think there is any problem with this. It seems that everyone agrees that this is what I should wear."

  When she arrived at the training camp, Wang Juan saw that some injured friends who were also in wheelchairs were dressed appropriately. After returning home, she asked her mother to take out one of her down jackets and didn’t want to go out in cotton pajamas. Mother’s first reaction was to refuse. She concluded that Wang Juan could not put on her old clothes, and most of them were given away or thrown away.

  At Wang Juan’s insistence, her mother helped her put on the down jacket. It was just a very ordinary and plain black down jacket, but she never forgot it.

  Wang Juan asked her mother why she felt that she couldn’t wear her old clothes. She remembered her mother mumbling, "I don’t know what to think, but I think you can’t wear your old clothes."

  After the training camp, at a party with injured friends, Wang Juan bought the first hairband after the injury. "You ask me why I want to buy it? I don’t know. But I saw it when I was shopping. At that moment, I saw myself through the mirror. I thought I was beautiful. I think I want to have it, I should have it, and I deserve it. "

  Ganshanna has also gained the sense of beauty and dignity brought by dress.

  When she was a freshman in high school, she bravely tried on a lavender "Lolita" dress under the recommendation of a friend. For her who has always had a strong sense of inferiority, it is a great challenge to try such a gorgeous dress style. Unexpectedly, she won the admiration of her classmates.

  This is the first time Ganshanna has gained confidence because of her appearance. After that, she tried different styles of dresses. With the support and encouragement of her friends, she gradually became indifferent to the negative comments.

  "People who praise me will shout it out louder." She said, "I feel that I also have the right to pursue beauty."

  When she was in college, Ganshanna heard of Zhang Xiaoli’s "23-degree dress-fixing" project in a fashion design competition, and "she felt stabbed in the heart at once". This is also the first time she has heard of "barrier-free clothing".

  After getting to know the Zhang Xiaoli team, Ganshanna has a "customized skirt". The "A-shaped" version well covers her distorted waistline due to scoliosis, and the bow that unfolds obliquely at the back visually adjusts her high and low shoulders.

  This dress also implies the blessing of Zhang Xiaoli team members to Ganshanna: "I hope she can change like a butterfly."

  The design is trapped in the drawings.

  When studying "barrier-free clothing" in 2006, the Department of Clothing and Clothing Design of Beijing University of Technology was still a "lonely pioneer". Nowadays, it has many "teammates", and many universities across the country have successively carried out research on "barrier-free clothing". However, until today, many design concepts are still trapped in drawings, and there are few real industrialized products.

  Some international clothing brands have also entered the field of design and production of barrier-free clothing. Tommy Hilfiger, an American casual clothing brand, designed jeans that can cover artificial limbs for people with disabilities; Nike, a sports brand, has developed a series of "GO FlyEase" sports shoes for the disabled. Some barrier-free fashion brands have emerged, such as Rebrith Garment and Tenbo. According to the report of Coherent Market Insights, an international data analysis organization, the global barrier-free clothing market is expected to reach 400 billion US dollars in 2026.

  Since 2017, several domestic enterprises have contacted the service team of Beijing University of Technology to discuss cooperation matters, including a well-known down jacket enterprise. Finally, after being evaluated by the marketing department, the brand gave up its investment and turned to overseas markets with more profitable space. There are also some venture capital companies that are more willing to speculate on concepts.

  "We hope to serve social groups, but corporate investors are more concerned about benefits." Wang Wenjuan helpless way. She understands the concerns of enterprises, and the research and development of "barrier-free clothing" is difficult and the production cost is high. Choosing "barrier-free clothing" means rebuilding the team and production line. "All design teams and technical teams … … The materials may be different from before, and the risks faced by enterprises are great.

  In addition, different from the garment design of healthy people, the individual status of disabled people is very different, and there is no "standard size" due to the lack of relevant measurement data, which makes it difficult to achieve assembly line mass production of garments and needs to be customized according to individual needs.

  "The ideal state is to be able to solve individuality from commonness." Wang Wenjuan said. But it also means greater investment in research and development.

  Wuhan textile University professor Yan Jun introduced that the overall size of foreign garment industry is small, with a long development time and a high degree of refinement. "They can have 11 sizes for a pair of trousers, and we may generally have only 4 sizes. Foreign garment enterprises are more accepting of the complexity of garment production."

  China’s clothing industry has the origin of cooperation with foreign trade enterprises after the reform and opening up, and it has the gene of mass production itself. Mass production is the consensus of many clothing enterprises, which will also affect the willingness of enterprises to invest in "barrier-free clothing".

  Compared with the high cost of original design, the cost of pirated clothing is low. According to Wang Wenjuan, in recent years, China has paid great attention to the protection of patent property rights, and the designers’ association has been studying the issue of clothing copyright, but clothing is too easy to be pirated. "You have worked hard, and if you put it into the market, it may be pirated immediately. You are helping them develop it at no cost."

  Even if we can go to the last stage of production, sales will be a big problem. There are more than 85 million disabled people in China. On May 15th this year, the China Disabled Persons’ Federation held a theme conference on the Day of Helping the Disabled, indicating that by the end of 2022, 10.455 million disabled people would be included in the minimum living guarantee. Most people with disabilities have low economic level and poor consumption power. The price of "barrier-free clothing" of foreign brands is thousands of yuan, which is difficult for them to afford.

  "The difficulties faced by barrier-free clothing are all aspects. It is a comprehensive and systematic problem. It is indeed valuable, but it is also difficult and needs to be promoted slowly." Wang Wenjuan concluded.

  Clothing is a symbol.

  Xu Jinze is a visually impaired person who has long been concerned about the protection of the rights and interests of disabled groups. In his view, the development dilemma of "barrier-free clothing" essentially reflects the general survival dilemma of disabled groups.

  He cited his visually impaired group as an example. On the surface, most visually impaired people’s dressing styles are very simple, simple and conservative. On the one hand, it is because of visual impairment that they limit their imagination of dressing. The deeper reason, he thinks, is that the visually impaired group "has a single living and growing environment, which leads to their single demand for beauty and clothing."

  He has been engaged in massage for the blind for a long time and is currently a partner of a chain massage brand. According to him, there are 17 million visually impaired people in China, and about 1.8 million people have formal jobs, and 90% of them are engaged in massage for the blind. On the other hand, most visually impaired people were educated in blind schools and grew up in a closed environment.

  "The environment in which we grow up, live and work defines our future, and clothing is just a representation under this definition. When we discuss clothing, we should pay attention to the humanistic factors and social problems behind it. "

  Compared with discussing "barrier-free clothing" from an industrial perspective, Xu Jinze believes that what this field needs more is actually a kind of "multi-integration" of society. The relationship between healthy people and disabled people should not be simply "seeing and being seen", but "accepting and being accepted". "We are all surrounded by a specific environment. It is not that you are unwilling to help us. It is that you can’t find our needs, and even we don’t know our own needs. We are separated."

  Xu Jinze mentioned that in Japan, visually impaired students can also study in normal public schools, and there will be teachers in charge of special education who will come to the school and class where the student is located to help him coach Braille and have barrier-free communication with his classmates. If this process continues from primary school to higher education, the student will naturally blend in with the surrounding environment, and after graduation, he will have the opportunity to engage in more kinds of jobs, without having to call for "getting to know each other" after he becomes an adult.

  Hu Wenbing, vice chairman of Wuhan Association for the Disabled, also stressed the importance of integrating the disabled into society.

  Hu Wenbing used to be an executive of a central enterprise. At the age of 37, he was disabled by a car accident. After the injury, he promoted the establishment of a "life reconstruction" public welfare training camp, aiming at helping the disabled to adjust their mentality, learn skills and reintegrate into normal society.

  Dressing teaching for wheelchair users is an important course of "Life Reconstruction" project, and Hu Wenbing is happy to see people’s concern about the dressing needs of disabled people.

  "Now it is no longer a society where people with disabilities are confined to their homes, especially those who are disabled the day after tomorrow. Many people have good academic qualifications and jobs before, if they can put on and take off their clothes and ‘ Erbian ’ If the problems are handled well, then they will have more opportunities to make their own careers in society. "

  In the training camp, Wang Juan saw many students regain their willingness to dress up in mutual support. Some people took off their knitted wool socks and put on fashionable snow boots, and began to pay attention to dressing decently and beautifully like healthy people.

  Wang Juan remembers that once, she and her friends were asked in the street where the wheelchair was rented. "I mistakenly think that we are healthy people who are too lazy to walk. It didn’t happen before. When others look at it, I think it is a disabled person or a patient. "

  Wang Juan also saw that a group of disabled people were rebuilding their lives with love and support. Clothing has become a symbol, expressing her and many disabled people’s demands and expectations to integrate into society. In her view, this expectation is nourished by the support and care of many parties in society, which is in line with the original intention of the birth of the "barrier-free concept".

  Although the development of "barrier-free clothing" still has a long way to go, the research team of the Department of Fashion and Fashion Design of Beijing University of Technology is still willing to remain optimistic. They said that in recent years, they have received more and more attention from multimedia, universities, enterprises and non-profit organizations. This concern itself represents the development trend of social concepts. At least in the field of fashion design, they hope that "barrier-free clothing" can convey an idea to students and the public:

  "Don’t be satisfied with your immediate needs, but pay more and more attention to others and society."

  Zhongqingbao Zhongqingwang Trainee Reporter Yan Sitong Source: China Youth Daily