CCTV News:Recently, many places have suffered from continuous high temperature weather. In order to ensure the normal operation of railway trains, railway departments in many places have strengthened the maintenance of air-conditioning equipment on lines and trains to ensure passengers’ safe and comfortable travel.

The reporter saw in Zhengzhou Depot that the train inspector was carrying out maintenance work on the train air conditioner on the iron roof more than 5 meters above the ground under the scorching sun. In hot weather, the normal operation of train air conditioning equipment is directly related to the comfort of passengers. Under the scorching sun, the surface temperature of the iron sheet on the roof is close to 60℃ or 70℃ at the highest, and the car inspector has to keep tossing and turning when stepping on it, and carry out operations such as disassembly, cleaning, dust removal and performance test on the 30 cm air conditioning unit.

Liu Yaofang, inspector of the depot inspection workshop of Zhengzhou Depot of Zhengzhou Bureau of China Railway:For the positions such as the inner cavity and evaporator that are easy to accumulate dust and cause poor refrigeration effect, we need to use soot blowing machines to dust these positions to ensure the best refrigeration effect of the whole air conditioning unit.

The higher the temperature, the busier the railway linemen are. Due to the property of thermal expansion and cold contraction of rail, it is easy to deform under the high temperature of the sun. In order to ensure the safety of railway operation in high temperature weather, railway linemen have to patrol the line on foot in high temperature. Railway rails, turnouts and fasteners should be checked one by one. It takes at least four hours to check the 10-kilometer railway line.

In addition, in Wuhai, Inner Mongolia, Linyi, Shandong and other railway stations, passengers are also provided with heatstroke prevention drugs and drinks such as Huoxiang Zhengqi water and mung bean soup in case of emergency.

　　[Original by Aika Car Vision Channel]

　　In 2002, in order to celebrate the 35th anniversary of AMG’s birth, an engine production line relying on manual assembly was quietly completed. AMG is proud to be called“One Man – The sacred aura of One Engine is also engraved on the engine of every AMG model together with the name of the engineer at this time. In 2017, AMG ushered in a 50-year-old wedding ceremony, and IWC, which adheres to the same craftsman spirit, arrived as scheduled. What is expected is, what kind of gift will this "sturdy" watch god bring this time?

　　IWC International Engineers Sports Timekeeping Watch "50th Anniversary of Mercedes-AMG" Special Edition

　　Editor’s comment:The Universal "50th Anniversary of Mercedes-AMG" special edition watch is not a stunning work that you will never forget, and even you will feel that such an elegant dial design is deja vu among other brands. However, if you rotate the dial, the anti-magnetic soft iron inner shell inspired by AMG carbon ceramic brake discs will release Mercedes’ pursuit of speed in full, and its functionality and cultural connotation will also reach the extreme under the interpretation of precision timekeeping in the world.

　　A few days ago, Publicity Department of the Communist Party of China and the Ministry of Education selected 10 "the most beautiful college students" for the first time from the "College Students of the Year" who were studying. Today, let’s listen to their stories and pay tribute to their dreams and youth.

　　Broad world, flying the ideal of youth.

　　On the first day of college, Liu Qiang, an undergraduate of Northeast Normal University, made up his mind to be a teacher of ideological and political course, facing the motto of "being diligent and innovative and being a teacher".

　　Learn and talk about ideological politics. During school, Liu Qiang toured "Chasing the Light of Communism" in many colleges and universities, which led many young students to teach ideological and political courses by themselves. After the 19th National Congress of the Communist Party of China, he actively explored "micro-ideological politics+second classroom" and created an exchange platform for young people to "learn, speak and use" ideological and political micro-courses — — Learning "learning" clubs has ignited the enthusiasm of young students to learn new ideas and build a new era.

　　Countless youths are blooming in the vast world. Ashar Nurtai, an undergraduate student at Nankai University, also has his own ambition, that is, to become a soldier.

　　Ashar’s father is a martyr. In 2017, adhering to his father’s legacy, he volunteered to apply for enlistment. After joining the army, Ashar withstood the "devil-like" hard training of the recruits with tenacious will and tenacious character, and took the initiative to apply to join the special warfare squadron, completing two "transformations" from ordinary college students to recruits and then to special warfare players.

　　"As young people in the new era, we should let the flowers of youth bloom where the motherland needs them most." Ashar’s face showed a determined and confident smile.

　　Study hard and climb the peak of science bravely.

　　Yu Jiping, an undergraduate student in Tsinghua University. In 2015, when he first entered the campus, he saw that the Tsinghua student supercomputing team had won the news of the "Grand Slam" of three international competitions, and he became interested in supercomputing.

　　In 2018, Yu Jiping participated in winning three super-international championships. Yu Jiping said: "We will not give up the slightest chance to improve the computing performance. Every little makes a mickle to get faster and faster, and to win glory for our country."

　　The beauty of science also shines in the laboratory. Liu Xie, a Ph.D. student at Sichuan University, devoted himself to rock dynamics and engineering. In recent three years, he published 28 academic papers, 23 of which were included in SCI, won 14 national invention patents and software copyrights, and was the reviewer of 4 professional authoritative SCI journals & HELIP; … "I think my major is very interesting and meaningful. I like it very much." Liu Wei said.

　　Lu Song, a doctoral student at China University of Science and Technology, is also a veritable "schoolmaster". The self-generating safety helmet developed by him uses the heat emitted by human body during riding to generate electricity and give intelligent warning, which not only ensures riding safety, but also practices the concept of energy saving and environmental protection and won the gold medal in the 45th Geneva International Invention Exhibition. "Let cutting-edge technology no longer ‘ High cold ’ Really changing human life is the original intention of our scientific research. " Lu Song said.

　　Self-improvement, highlighting the value of life

　　The Wenchuan earthquake in 2008 dealt a heavy blow to Liu Min’s life. After being buried for 30 hours, she was rescued, but lost her right leg.

　　However, the strong Liu Min didn’t give in. After resuming her studies, she was admitted to Sichuan University and was sent to Nanjing University with excellent results. Not only that, she also initiated the International Forum on Post-disaster Reconstruction for College Students. Participate in the establishment of China Rehabilitation Engineering Foundation; Give inspirational speeches in many places to help more people get out of the haze.

　　After graduation, Liu Min decided to work for Sichuan Disabled Persons’ Federation. She said, "All losses are opportunities for growth. Now I am more determined in my heart and hope to do my best to help disabled friends, even if it is only a small change. "

　　Oriole, an undergraduate student of Wuhan University of Technology, also suffered a fate change. At the age of two, a high fever made her blind. However, the word "blindness" never seems to be an obstacle in Oriole’s life. In 2015, she was admitted to Wuhan University of Technology as a social work major, becoming the first blind student in China to take the general college entrance examination and enter the 211 key university.

　　Li Eryang, master student of Xi ‘an University of Finance and Economics. In March 2015, on the south bank of the Second Yellow River Bridge in Zhengzhou, Henan, Li Eryang found a child falling into the water. With good water quality, he jumped into the cold and fast-flowing Yellow River and tried his best to save people. However, I didn’t expect that Wu Zongyao, another student who was later supported by the water, failed to come back, which made Li Eryang very regretful.

　　Since then, Li Eryang resolutely joined the Red Cross Water Rescue Team in Zhengzhou. During the two months of summer vacation, he participated in the first-line on-site rescue 12 times and successfully searched for 9 drowning people. "Everyone who volunteers is glowing. Believe in the power of action, no matter how small!" Li Eryang said.

　　Innovate and start a business, and live up to youth.

　　Wang Shaoxin, a doctoral student in energy and resource engineering at Peking University Institute of Technology, deals with waste residue and waste gas from factories almost every day. His goal is to turn waste into treasure, turn waste residue into porous ceramics with high added value, and use it as a catalyst carrier, and load nano-materials on its surface to control air pollution, and finally realize "treating waste with waste".

　　At present, Wang Shaoxin has applied for 19 patents at home and abroad, and 9 patents have been authorized. At the same time, he founded Beijing Quality Enjoy Technology Co., Ltd. and obtained millions of angel round financing.

　　Ma Tianchen, a doctoral student majoring in network ideological and political education at the University of Electronic Science and Technology of China, is also struggling on the road of starting a business. Chengdu Taijutai Technology Co., Ltd., which it founded, successfully landed on the "New Third Board" in 2015, becoming the first company founded by college students and listed on the national stock exchange market during its school days. Ma Tianchen said with emotion that struggle is the background color of youth, and I hope that each of us can live up to ourselves, youth and the times.

[Interpretation of car home’s New Technology] Speaking of Bosch, you are no strangers. This well-known enterprise from Germany has too many auras and countless fist products. But if I tell you, these guys have recently developed many strange technologies, such as intelligent drift, old drivers braking … You must doubt whether Bosch engineers are working seriously? Don’t worry about the evaluation, let’s follow our footsteps and come to the Bosch (Hulunbeier) Automobile Test Technology Center with a cold wind to find out.

zeroThe motor started too hard? DTCS: arranging

In order to better control the vehicle, Bosch developed ESP? in the era of internal combustion engine. Body electronic stability control system and TCS traction control system. To put it simply, the former can reduce the offset trajectory of the vehicle during sudden braking and improve the braking safety by quickly braking continuously and adjusting the braking force of four wheels; The latter is to control the output power of the engine to ensure that the vehicle will not be out of control because of excessive acceleration torque.

The unique torque output characteristics of the motor really shorten the speed-up time of 0-100km/h, which brings an acceleration experience that many high-performance engines can’t match. But it is precisely because of this feature that it is easy for tires to break through the adhesion with the ground, resulting in vehicle instability. To put it bluntly, it is-slipping at the beginning.

Due to the output characteristics of the engine, the increase of torque needs to wait for the increase of rotational speed, so the delay of 100ms is completely sufficient. Even if many high-performance vehicles step on the accelerator deeply in the initial stage, it is not easy to cause slippage with the help of TCS.

However, the torque output of the motor is explosive, and the speed can be increased to more than 10,000 rpm in an instant, which makes the traditional TCS seem a bit "late". Therefore, Bosch engineers try their best to shorten the trigger delay of TCS according to the characteristics of the motor. Thus, the distributed traction control system dTCS was born.

According to the official disclosure, it takes only 10ms from the wheel speed sensor sensing that the vehicle is slipping to the completion of the torque limiting operation. It’s like the "high-Ping warrior" in the team just now turned on a game accelerator, and naturally he can get a better game experience.

Not only that, this set of dTCS also supports OTA upgrade. As long as the model is equipped with Bosch’s IPB intelligent integrated braking system, in theory, new functions can be written through OTA. However, at present, the official has only opened this function to Han EV. As for when other models equipped with IPB can enjoy it, it still needs specific planning.

zeroKinetic energy recovery is also slipping? EDTC: I will do it.

Many electric vehicles will automatically activate the energy recovery function when the vehicle releases the accelerator pedal to convert the wasted kinetic energy into electric energy and store it again. Frankly speaking, it is the "single pedal mode" promoted by many car companies.

EDTC has the same effect as dTCS mentioned above, and it also integrates this software algorithm into MCU motor controller. However, it controls not the "acceleration torque" output by the motor, but the "deceleration torque" generated by kinetic energy recovery. By shortening the communication path, the delay of issuing instructions is reduced.

In fact, dTCS and eDTC have one thing in common, which is to transfer the algorithm originally designed in the braking system to the motor controller. We should know that electronic control is one of the three cores of new energy vehicles. Nowadays, the design of electronic control system of vehicles is often in the hands of car companies themselves. If you want to write a black box algorithm here, it must be a very close cooperative relationship. However, according to Bosch’s engineers, they have already landed projects, and it is estimated that before long, things that can save lives at these critical moments will be quietly arranged in our car.

zeroBaby mode: Say goodbye to the brakes.

Maslow first put forward the hierarchy of needs theory in a paper "A Theory of Human Motivation" in 1943. Generally speaking, after meeting the security needs, human beings will begin to pursue higher-level needs. Such as socialization, respect and even self-realization. The same is true in the automobile field. After cars become more and more safe, the demand for comfort and entertainment begins to surface gradually.

Many consumers are prone to feel uncomfortable when riding a car, and one of the most important reasons is to brake and nod. At the moment when the vehicle is about to stop completely after deceleration, if the driver is not an old driver and doesn’t know to take a little throttle, then the last "trembling" will make the unsuspecting occupant lean forward and then be thrown back to his seat.

CST 2.0 relies on Bosch’s decoupled intelligent braking system, and both DPB and IPB can realize this function. Simply put, the model-based algorithm releases a certain braking pressure for the driver at the moment when the vehicle is about to stop. Even if the driver doesn’t loosen the oil, the vehicle can realize the effect of loosening the oil independently.

Then some friends may ask, won’t the braking distance be extended if the vehicle releases the braking pressure on its own initiative? What if it leads to a rear-end collision? We can think of problems, and engineers can certainly think of them. Therefore, this technology has considered several situations at the beginning of design.

● In case of emergency braking, whether the driver operates or the AEB system is triggered, CST 2.0 will not be activated when the deceleration of the vehicle reaches a certain threshold. The vehicle can be under the ideal braking force until the vehicle stops. After all, it’s almost hit, so don’t pay attention to comfort and discomfort. Safety comes first.

● If the vehicle triggers the ABS function for various reasons, CST 2.0 will not be activated. This tire is almost hard to grasp, so let’s forget about nodding. It’s reasonable.

● If the vehicle is driving on a ramp and the gradient exceeds the preset value, CST 2.0 will not be triggered for safety reasons. If you really want to learn from the old driver, you will be in trouble.

Technology alone is not enough. If you want to sell something, you have to rely on packaging. Bosch engineers have even named the function: according to different softness, this function can be switched between "baby mode", "commuting mode" and "customized mode" at will. According to my actual experience, I think the baby mode experience is the most comfortable, and I can hardly feel any brake nod. You just pedal and leave the rest to CST 2.0.

zeroIntelligent drift? Just get in the car?

What is the most important thing to do when you come to the ice and snow field? Of course, driving a car is a hearty drift show. However, it is very difficult for most drivers to control the vehicle stably in this state that is about to get out of control. The accelerator pedal is too small to break through the grip limit, and the floating fails; When the accelerator is stepped on, the vehicle oversteers and turns in circles. So, if there is such a technology that can help drivers control the power output of vehicles, will drift become very simple? Bosch calls this technology iDCS, which is the intelligent drift system of new energy vehicles.

The traditional car drift skills are actually very complicated. It requires the driver to break the grip balance of the rear wheel through the cooperation of the throttle and the steering wheel, resulting in "tail flick", and then adjust the angle of entering the corner in the reverse direction. It is also necessary to constantly correct the throttle opening and steering wheel angle to keep the vehicle in a state of insufficient grip. Even experienced drivers need to choose familiar vehicles and practice for a long time to ensure stable and controllable drift and perfect posture.

Even a driver like me, who is not good at drifting, can simply drift with the help of iDCS. As the trajectory of the vehicle is gradually straightened, the accelerator pedal is pressed again in the reverse direction while releasing the throttle, and the vehicle will adjust its attitude and drift in the reverse direction under the control of iDCS to complete a classic "pendulum" action.

"The cooperation of front and rear axle dual motors is not the difficulty of iDCS, even if there is only a rear axle single motor, this technology can be applied. Its complexity lies in the matching of different models. Because the chassis and suspension characteristics of different models are different, targeted adjustment and calibration can make it complete the drift action instead of Spin. "

This system does not need additional hardware support, in other words, "just have a wheel." It can not only be a good helper for drift introductory teaching, but also become a unique selling point of high-end new energy vehicles. It is understood that Bosch has even started a specific cooperation project with a new energy brand in China, but when we asked which OEM it was, the engineer said that it could not be disclosed for the time being.

zeroWrite it at the end

In fact, a day’s ice and snow experience is far more than the above contents, such as VDC 2.0 vehicle dynamic control system, off-axis torque distribution eDTD, and steer-by-wire system SBW, which are not easy to display in graphic form. We will share them with you in the form of video in the future.

I have to say, once the supplier starts to play dirty, there will be nothing wrong with the OEM. Now they not only have to develop various technologies about safety for their customers, but also have to constantly innovate and toss some interesting "tricks". Even the product name has been given, and it is really "rolled up". I hope that all major car companies will work harder and don’t let Bosch steal the limelight. I also hope that these practical and interesting functions can be introduced to the market as soon as possible, so that we can have a good experience on the commercially available models. (Photo/Text car home Yang Peng)

"double 11" has just ended, and the courier brother is still busy. With the rounds of e-commerce wars, China’s express delivery industry has developed rapidly. As an important tool of urban distribution, it plays an increasingly important role.

From the current truck market, the mainstream brands are, New, and Transit series. The latter two, as imported models in China, have not been able to keep up with the pace of upgrading abroad due to various restrictions, leaving some old impressions on everyone. However, in fact, in the field of closed trucks, the development technology abroad is much more advanced. Previously, foreign media released a set of test drive reviews for 2015 Ford Transit, 2015 Mercedes -Sprinter, and 2014 Pro, which let us feel the current level of imported closed trucks.

● 　2014 dodgeProMaster The product of patchwork

After some tests, foreign media gave an evaluation of the ProMaster car, with sharp words and no mercy. they thinkProMasterIt is the product of patchwork, completely on the basis of Ducato, changing the logo on the top, and making up the number. In the cross comments with Mercedes-Benz Sprinter and Ford Transit,ProMasterIt was a terrible loss. Due to the poor performance of this car’s single clutch and automatic integration, a foreign colleague even showed it zero; While others only gave a sympathy score of one point. The people who participated in the test said that the gearbox of this car had a strong sense of frustration when shifting gears; Sitting in the car, the stability of the car is poor, the sense of bumps is strong, and it is a little scary. Xiao bian saw here that this is very serious for a car, and even the comfort of riding can’t be guaranteed. What else can I mention?

In terms of power, the Dodge ProMaster is equipped with a 3-liter inline 4-cylinder turbo diesel engine, which has relatively strong power. However, in the test, although it has the lightest weight and the shortest vehicle length, its acceleration time of 0-96km/h is two seconds slower than other models. Secondly, the braking distance of ProMaster is the longest among the participating models. In addition, colleagues also reported that ProMaster’s cab was narrow and lacked space, so the driver could not stretch out when sitting in it. The problems mentioned in the above small series are the reasons for ProMaster’s poor driving experience.

● 2015 Mercedes BenzSprinter superiority has become a habit.

Although Mercedes-Benz Sprinter is compared as a new model, the name Sprinter is not unfamiliar. There are Sprinter, Dodge Sprinter and Mercedes Sprinter today, and many models come down in one continuous line with the same quality.

Sprinter, which participated in this test, is equipped with a small diesel engine, and an optional partition is provided between the main and auxiliary drivers and the cargo compartment, which has a certain effect on isolating the noise from the cab.

Xiao Bian saw that the owner also placed a sofa, a small square table in the cargo compartment, and even posted a Mito poster. In particular, it has a feeling of home, which can be used as an RV. It can be seen that the space in the cargo compartment is really large enough.

Sprinter’s main driver’s seat, although in a higher position, is much more comfortable than the ram ProMaster, and the driver can easily reach the steering wheel when sitting on it, which is ergonomic. In addition, the steering system of this car is excellent, and its flexibility is even better than that of today’s Mercedes-Benz cars.

In terms of power, Mercedes-Benz Sprinter is matched with a 2.1-liter four-cylinder turbocharged diesel engine, although the power and torque output of this engine is the smallest among the models participating in the test. However, due to a 7-speed automatic gearbox, the shift is smooth, and the acceleration time of Mercedes-Benz Sprinter is quite satisfactory, and the acceleration of 0-96km/h takes 11.4 seconds. The top speed of Mercedes-Benz Sprinter is set at 133km/h, which is considered by foreign colleagues to be a waste for this big guy. Even at a higher speed, Sprinter can easily cope with it.

● 2015 FordTransit belly can be loaded with explosive force

Card friends who are familiar with Ford know that Ford often matches the twin-turbo V6 gasoline engine for its own models, which is full of power and can kill all Van models. However, the Ford Transit, which participated in the test this time, was equipped with a 3.2-liter inline 5-cylinder. Although the diesel engine is replaced, Transit still wins by absolute advantage in power, which can bring the fastest acceleration to Transit under the same fuel consumption.

Transit not only accelerates quickly, but also carries an amazing load, which can carry about 185 kilograms more goods than Sprinter. In addition, this model is very suitable for logistics transportation, and its pedal height is moderate, which is convenient for loading and unloading goods. The ability to effectively resist crosswind, good braking performance, and the "big car" give people a feeling that Transit is like an enlarged version of Ford Flex.

After testing Transit, foreign counterparts said that this car is very easy to drive, and even joked that Transit can pull more beer, comparable to Dodge A100 in the 1960s.

Xiaobian mentioned in the article that foreign media participated in the evaluation and gave corresponding scores. Card friends can refer to it if they are interested. See the next page for the attached table. (Source: car and driver Compilation/Truck House Zhang Yajing)

● Evaluation score table of three Van models.

● Related reading:

Repair both inside and outside, dodge Van model is upgraded and attacked again.

Transit VAN turned into a big stomach king with 6 people and 36 people!

　　22 Challenger Hellcats, with rough appearance and hot performance, are a special product of America’s post-war prosperity in the 1970s, simple violence. This is the American locomotive. Hellcats carry the American dream since the 1970s. This is a pure speed machine, and 22 Dodge Challenger Hellcats. Only a handful of people in China know this brand, not to mention finding a pure Hellcat on the road. Tel: 13920291120 Manager Chen (same as WeChat)

　　Price: 1.3-1.8 million yuan, down payment of 300,000 yuan to take home! For details of the reserve price, please call the car purchase number: 13920291120 Manager Chen (with WeChat) or add WeChat to find out.

　　Status: Now the car has complete procedures, and the car can be picked up at any time, with complete colors and multiple colors to choose from.

　　Configuration: high-performance package jailbreak laguna leather interior Hellcat logo (front ventilated seat, Laguna leather door trim, advanced stitched instrument panel, radio with memory setting, driver’s seat and rearview mirror, electric adjustment of steering column), wide-body appearance package (wide-body wheel eyebrows, high-performance engine controller, wide-body sports suspension system, SRT jailbreak instrument panel badge, SRT water cooling system) technology package (adaptive high beam headlights) driver’s convenience package (body color, electric adjustment, heatable and manual folding rearview mirror, high-brightness headlights, blind spot monitoring/blind spot monitoring of rear cross path detection) Harman/Kardon audio package (harman/kardon GreenEdge amplifier, harman/kardon 18 speaker audio system, trunk bass, Surround stereo) black seat, devil’s red seat belt, Dinamica suede roof lining, devil’s red carpet, 8-speed TorqueFlite high-performance automatic gear, leather-wrapped shift handle, automatic/rocker automatic gearbox, remote start system, prompt start, shift paddle, 3.09 rear axle ratio, electric sunroof, black Mopar hood lock kit, black SRT performance spoiler, red external badge, SRT wide body, Alcantara steering wheel with red LED.305/35ZR20 3 season Pirelli tire, 8.4-inch display, 20×11-inch ultra-light wheels, chrome-plated fuel cap,Copper woven carbon fiber decoration, orange brake calipers. Tel: 13920291120 Manager Chen (same as WeChat)

　　22 Dodge Challenger Hellcats, with rough appearance and hot performance, are a special product of America’s post-war prosperity in the 1970s, with simple violence. This is an American locomotive. Hellcats carry the American dream since the 1970s. This is a pure speed machine, 22 Dodge Challenger Hellcats, and only a handful of people in China know this brand, not to mention finding a pure Hellcat on the road. Tel: 13920291120 Manager Chen (same as WeChat)

　　The 22 Dodge Hellcat wide-body red-eye cats are equipped with a 6.2L V8 supercharged HEMI engine with an output of 808 HP (797 British HP) /960 Nm, which is called the muscle car with the highest horsepower acceleration, the fastest speed and the fastest mass production. 0-96 km accelerates for 3.4 seconds, 0-400 m accelerates for 10.8 seconds, the tail speed is 210 km, and the top speed is 327 km/h. It is also equipped with "ejection preparation" Line Lock mode, which can easily burn tires in situ. Tel: 13920291120 Manager Chen (same as WeChat)

　　The aggressive front face of 22 Dodge Hellcat wide-body red-eyed cat muscle sports cars is the most striking place, like a shark with a big mouth, which is quite powerful. The integrated taillight uses 164 LED light sources, and the tail wing improves its stability at high speed. 22 Dodge Hellcats Wide-body Red-Eye Cats From the front of the car, the two headlights are as sharp as eagle eyes, and the flexible lines of the whole body overflow with an aura. If you like passion, sports cars and speed, 22 Dodge Hellcats are the best choice. Support national installment car purchase Tel: 13920291120 Manager Chen (same as WeChat)

　　Tel: 13920291120 Manager Chen (same as WeChat)

　　The aggressive front face of 22 Dodge Hellcat wide-body red-eyed cat muscle sports cars is the most striking place, like a shark with a big mouth, which is quite powerful. The integrated taillight uses 164 LED light sources, and the tail wing improves its stability at high speed. 22 Dodge Hellcats Wide-body Red-Eye Cats From the front of the car, the two headlights are as sharp as eagle eyes, and the flexible lines of the whole body overflow with an aura. If you like passion, sports cars and speed, 22 Dodge Hellcats are the best choice. Tel: 13920291120 Manager Chen (same as WeChat)

　　On May 1st, a rare sight of iron-backed fish surfaced in Crescent Spring, a famous scenic spot in Gansu. The picture shows an "iron-backed fish" that surfaced about 1 foot long by visual inspection. Photo by Wang Binyin

　　On May 1st, a rare sight of iron-backed fish surfaced in Crescent Spring, a famous scenic spot in Gansu. The picture shows a large number of tourists surrounding the Crescent Spring to capture the "iron-backed fish". Photo by Wang Binyin

　　On May 1st, a rare sight of iron-backed fish surfaced in Crescent Spring, a famous scenic spot in Gansu. The picture shows the "iron-backed fish" that surfaced. Photo by Wang Binyin

　　Zhongxin. com, Lanzhou, May 2 (Wang Binyin, Feng Zhijun) The Tourism Bureau of Dunhuang City, Gansu Province disclosed on the 2 nd that on May 1, rare fish species appeared in Crescent Spring, a famous scenic spot in Dunhuang, an international tourist city. — The sight of iron-backed fish emerging from the water attracted a large number of tourists to take pictures.

　　In fact, this rare "indigenous" species in Dunhuang has disappeared for many years in Crescent Spring. In late July last year, there was a more spectacular group of fish surfaced in Crescent Spring, which was captured by tourists. However, since then, it has once again "disappeared" from the people’s sight for half a year.

　　According to the real video uploaded by netizens, there are about two or three "iron-backed fish" floating in the crescent spring on May 1, but visually, about a foot-long "head" is generally much larger than the fish that appeared a year ago, and the onlookers of tourists have not disturbed them to feed leisurely.

　　On May 1st, a rare sight of iron-backed fish surfaced in Crescent Spring, a famous scenic spot in Gansu. The picture shows several tourists "recognizing" the swimming "iron back fish" with each other. Photo by Wang Binyin

　　At present, local officials have failed to explain exactly the cause of this unusual phenomenon. However, the reporter noticed that under a series of strict official ecological control measures, the water level of Crescent Spring has been declining for many years, and it has gradually recovered and remained at around 1.5 meters in recent years, and there are often scenes in which the spring water rises and overflows the fence.

　　Located at the northern foot of Mingsha Mountain, 7 kilometers south of Dunhuang, the crescent spring, known as manhole in ancient times and medicinal spring in common name, has been one of the "eight scenic spots in Dunhuang" since the Han Dynasty, and has become a spectacle because "the ancient sand does not fill the spring, and the spring does not dry up". It is nearly 100 meters long from north to south and about 25 meters wide from east to west. The spring is deep in the east and shallow in the west, and it bends like a crescent moon. It is rumored that there are "three treasures" in Crescent Spring: iron-backed fish, seven-star grass and five-color sand. (End)

SLC, MLC or TLC?

　　I believe that some players who know a little about SSD have heard about SLC, MLC and TLC, and their impression of TLC should be synonymous with poor performance and short life. SSD relies on NAND Flash memory chip to store data, which is very similar to the U disk we use in principle. According to the storage principle of NAND Flash, SSD can be divided into SLC(Single-Level Cell), MLC(Multi-Level Cell) and TLC(Trinary-Level Cell).

　　In principle, SLC only stores 1bit of data in each memory storage unit, and there are only two charging values, 0 and 1. MLC stores 2 bits of data in each memory storage unit, and has four charging values of 00, 01, 10 and 11. It takes more time to access data than SLC, but its advantage is that it has higher data density and can reduce production costs. TLC stores 3 bits of data in each memory storage unit, and there are 8 charging values. In the process of use, in order to meet these 8 different voltage states, the main control chip needs to apply different voltage states, which takes longer to complete, and the result is slower access speed. However, the advantage of TLC is that it has the highest data density and the lowest cost, and it is also very easy to make a large-capacity SSD at a competitive price segment.

TLC is obviously different from MLC in life and performance.

　　Players talk about the color change of TLC, among which the slow reading and writing speed is not the main reason, and what is more worrying is the life of TLC SSD. Compared with MLC with 3000+ times and SLC with nearly infinite life, the theoretical erasure life of 1000 times is so short.

More advanced technology will make the original more fragile.

　　The former principle part briefly explains the working state of TLC SSD when it is used. With the development of semiconductor technology, the thickness of insulator silicon oxide is getting thinner and thinner. Every time SSD is written and erased, the process of applying voltage itself has physical losses. In addition, TLC needs to handle eight different voltages at the same time. The physical laws determine that electrons may be stranded in the silicon dioxide insulation layer. This will make each erasing time longer than the last time. With the longer use time, it will take longer and higher voltage value to reach the original voltage every time. The main control chip will also try different voltages when it detects that the original design voltage value is abnormal, which will further slow down the speed and bring further losses.

Why TLC is dominating SSD market?

　　Whether you want to admit it or not, although the players have a bad reputation for TLC, the SSD market is inevitably dominated by TLC SSD. Are products with obvious shortcomings such as short life and poor performance released to the market by major manufacturers just because of low cost?

　　In fact, the reason why TLC SSD now occupies most of the market share is that manufacturers have found a solution to the slow reading and writing speed and short life of TLC.

More components are accommodated through the multilayer stack structure.

　　First of all, the life-span problem is solved thanks to the 3D NAND structure. The original 2D NAND pursues smaller memory cells through more advanced semiconductor technology in exchange for larger storage capacity, which aggravates the short life-span problem for TLC. However, the idea of 3D NAND structure has changed, instead of pursuing smaller units on a plane, more units are put down by stacking and packaging, so the space saved can use relatively old processes. The advantage of using the old process is that the number of P/E erasures is greatly increased, and the situation of charge interference is also greatly reduced because of using the old process.

　　In recent years, the improvement of the main control chip by the manufacturer has further improved the service life of TLC, and has made progress in signal processing, algorithm and so on. So that today’s TLC SSD can also be on par with MLC in quality assurance.

Use part of TLC in SLC mode.

　　TLC belongs to a state of "treating the symptoms but not the root cause" in solving the speed problem. In principle, it is determined that the reading and writing speed of TLC can’t be faster than MLC or even SLC, but we don’t always read and write data with a very large amount of data. By turning a part of TLC into a cache area, manufacturers make it simulate the working mode of SLC, that is, SLC Cache (that is, 3 3bits are used as 1bit). In this way, it brings a small amount of data to read and write, and TLC also has a very fast speed.

When the buffer is full, it will restore the original speed of TLC.

　　It is said to be "temporary solution" because this method can’t keep TLC at a high speed. When the buffer is full, the reading and writing speed will be "exposed".

　　Players need to pay attention to buying mainstream regular manufacturers’ granules when purchasing SSD. The original granules are the best, white films can be considered, and black films should not be considered directly. Don’t be greedy for petty gains. The data is very valuable.

Main control chip

　　The main control chip in SSD can greatly affect its final performance and service life. In addition, the main control chip directly determines whether the SSD of M.2 interface takes SATA channel or PCI-E channel.

　　Main Control Chips Among the mainstream brands in the market, Samsung’s main control chips are often self-produced and sold, and only used in their own SSDs. The main control chips of other major main control manufacturers, such as Marvell, SandForce, Huirong, Qunlian, Zhiwei and Toshiba, are distributed in products of various price segments, and the performance of main control chips of products with different prices is almost the same. The main controller mainly controls the reading and writing of data and FTL layer algorithms (such as wear balance WL, garbage collection GC, etc.), which largely determine the performance of SSD. Players don’t have to worry too much about the specific performance of the main control when purchasing SSD, but they should avoid the "spelling the evening" main control chip:)

Overlooking China Yagu Science and Technology Park.

Ziyang speeds up the cultivation of industries with distinctive advantages such as food and beverage.

The first toothed rail train "Snow Mountain Brigade" produced by CRRC Ziyang Locomotive Co., Ltd. in China will be used in the mountain rail transit project from Dujiangyan to Siguniang Mountain.

Spring is full of vitality. Entering Ziyang, there is a vigorous vitality of development and enterprising everywhere.

On March 1st, Ziyang held the ceremony of "Cloud Signing" for industrial investment projects, and signed 18 key projects on site with an investment of 4.918 billion yuan. Twenty days ago, at the cooperation meeting of "State-owned enterprise Ziyang Bank" project in 2023, Ziyang and state-owned enterprises "joined hands" and signed 18 projects, with a total cooperation amount of 47.6 billion yuan …

Projects attract frequent actions, and the pace of seizing opportunities for development is also accelerating. The first Chinese New Year tea party for entrepreneurs, leading cadres at the municipal level and leading comrades at the county level studied and implemented a series of activities such as the Party’s 20th Spiritual Reading Class, studied and implemented the decision-making arrangements of the CPC Central Committee and the provincial party committee, and gathered consensus on development; The city’s industrial high-quality development conference and Ziyang High-tech Zone, Ziyang Airport Economic Zone high-quality development conference, the municipal party committee rural work conference and a series of meetings, special deployment of relevant work arrangements.

From the meeting place to the market, from planning to action, an agreement with wet ink, and a project site in full swing-Ziyang, which is struggling to write a new chapter in building socialist modernization in an all-round way, is moving steadily.

The Sixth Plenary Session of the Fifth ziyang Municipal Committee and the Economic Work Conference of the Municipal Party Committee made it clear that it is necessary to do a good job in promoting the development of Ziyang High-tech Zone and Ziyang Airport Economic Zone, implementing the strategy of strengthening the city through industry, deepening the "three major events" of the reform of municipal state-owned enterprises, implementing the "three major battles" of industrial projects, traffic construction and urban planning and construction, deepening the "n reforms" of state-owned enterprises, and speeding up the construction of a modern industrial new city in Chengdu metropolitan area and a demonstration zone for the rise of central Chengdu and Chongqing.

Stepping into a new journey, Ziyang is striving to embark on a road of modernization that grasps the general trend of the times, embodies the characteristics of Ziyang and serves the overall situation of the province.

Grasp the strategic opportunity and lead the modernization development.

On February 24th, at the construction site of the starting point of the shield section from Lingkong Economic Zone Station to Jiaozi Avenue Station on Ziyang Line of rail transit, two shield machines were started at the same time, and the belt conveyor made a "squeaking" sound, dozens of workers were working, and the muck in the tunnel was continuously transported outside.

"Project construction is accelerating." Tian Li, deputy commander of Ziyang Line Command of Rail Transit, said that at present, all stations on the rail line are capped, and the work of erecting beams on the elevated section has also come to an end. By the end of the year, the whole line of bridges and tunnels will be completed.

As the first cross-city intercity rail transit line in the province, the Ziyang line of rail transit will be pulled into the same city and enter a new stage of "rail city" after its completion.

In the past year, a number of transportation infrastructure projects have blossomed in Ziyang, focusing on the urbanization of Chengzi and the construction of the twin-city economic circle in Chengdu-Chongqing area: Chengdawan, Chengdu-Chongqing middle line and Chengziyi high-speed railway have been substantially promoted, Chengzi Avenue has been completed and opened to traffic, and Ziyang-Tongliang (Sichuan border) expressway has started construction …

The promotion of transportation infrastructure has opened up the "big channel" and also brought big projects: in Ziyang Airport Economic Zone, the construction of Ziyang Fangte Cultural Tourism Project has been accelerated, which is expected to attract millions of tourists from the province and even the whole country; In Lezhi County, the site construction of Fenan Aluminum Southwest Base is in full swing, and it will become a highland for the development of local intelligent manufacturing industry in the future; In Anyue County, the new project of Ziyang Gas Power Station of Sichuan Investment Group is carried out in an orderly manner. After the whole project is put into operation, it is estimated that the annual power generation will be 7 billion kWh, which can be used by 3 million families …

Ziyang has made it clear that it will adhere to the construction of the twin-city economic circle in Chengdu-Chongqing area as the general traction, promote high-quality development with the strategic support of the integration of capital into the same city, and accelerate the construction of a modern industrial new city in Chengdu metropolitan area and a demonstration zone for the rise of central Chengdu-Chongqing area.

The relevant person in charge of Ziyang Municipal Committee said that with the urbanization of capital and the construction of the twin-city economic circle in Chengdu-Chongqing area, various undertakings in Ziyang have opened up a new situation and entered a critical period of breakthrough and an opportunity period of high-quality development.

This point has been deeply felt by many people who are struggling in the front line. Zhong Ning, deputy general manager of CITIC Construction Co., Ltd. and chairman of Sichuan Ziyang Airport Industrial New Town Construction and Development Company, mentioned a change in attracting investment: compared with a few years ago, entrepreneurs who came to contact no longer asked questions about infrastructure construction, but consulted specific matters such as labor costs and upstream and downstream industrial chains around their own development. "This shows that enterprises have begun to consider the situation after landing, which reflects that the attractiveness of capital contribution to enterprises is increasing."

Focus on key breakthroughs and drive overall improvement.

On February 22nd, Ziyang held the city’s industrial high-quality development conference and the high-quality development conference of Ziyang High-tech Zone and Ziyang Airport Economic Zone.

One will focus on industrial development and the other will focus on regional development. Why should they be held together? The answer is "promoting the overall improvement through key breakthroughs".

The relevant person in charge of Ziyang Municipal Committee further explained: from the perspective of industrial development, industry is the main engine of modern industries, and it is necessary to concentrate resources to drive industrial breakthroughs with industrial development and achieve overall economic improvement with industrial breakthroughs; From the perspective of regional development, Ziyang High-tech Zone and Ziyang Airport Economic Zone are the main positions of Ziyang’s industrial development. The development of the two zones should drive the all-round development of the city and achieve the effect of "revitalizing all at once".

Accelerate the construction of a modern industrial system with industry as the main engine, and provide strong industrial support for accelerating the construction of a modern industrial new city in Chengdu metropolitan area and a demonstration zone for the rise of central Chengdu-Chongqing area. Ziyang has a clear path-we should focus on "three major events", implement "three major battles" and deepen "n reforms".

More expectations are also brewing. Tang Yiting, deputy director of ziyang Economic and Information Technology Bureau, said that the local government is promoting industrial clusters and industrial agglomeration, and accelerating the construction of a modern industrial system focusing on industries with distinctive advantages. In promoting major projects, Ziyang will promote the start of 14 projects such as the southwest production base of keeway electric vehicles, accelerate the construction of 17 projects such as the southwest base of Fenan Aluminum, and complete and put into operation 9 projects such as the expansion of auto parts in Gillista; In terms of strengthening industrial clusters, Ziyang will focus on precisely attracting investment, extending the chain and supplementing the chain around characteristic and advantageous industries, and promote the formation of a 10 billion-level industrial cluster, so as to realize the total output value of seven major industries, including medicine and health, equipment manufacturing, energy and chemical industry, with a scale of more than 45 billion yuan …

The shock has come, and everything is revived. On both sides of the Tuojiang River, projects have been accelerated and industrial clusters have taken shape … A new picture of Ziyang’s modernization full of vitality has been quietly unfolded. (Reporter Li Wei Gao Kun/Wen Hua Xiaofeng/map)

Shu Shuo Ziyang 2022

Look at the industry

agriculture

Production is generally stable.

The annual grain output was 1.62 million tons.

It has been stable at more than 1.6 million tons for eight consecutive years.

The productivity of animal husbandry has been continuously improved, and 2.865 million pigs were slaughtered in the whole year.

An increase of 4.2% over the previous year.

industry

The economy is stabilizing and improving.

The added value of industrial enterprises above designated size increased by 5.6% over the previous year.

The sales rate of industrial enterprises above designated size is 96.9%.

High-tech industries maintained rapid growth.

The added value of high-tech industries above designated size increased by 18.0% over the previous year.

Realized operating income of 9 billion yuan, up by 10.8%.

service sector

Sustained recovery

The added value of the tertiary industry increased by 2.9% over the previous year.

Among them, the added value of wholesale and retail increased by 7.3%.

See the potential

Investment in fixed assets grew rapidly.

In 2022, Ziyang invested in fixed assets of the whole society.

An increase of 10.2% over the previous year.

Consumer goods market increased slightly.

The total retail sales of social consumer goods reached 44.66 billion yuan.

An increase of 0.3% over the previous year.

Smooth operation of finance and finance.

In 2022, Ziyang local general public budget

The income is 6.10 billion yuan.

The same caliber increased by 16.9%

Among them, tax revenue reached 3.03 billion yuan.

Prices kept rising moderately.

The annual consumer price (CPI) rose by 1.1% over the previous year (source: ziyang Statistics Bureau).

　　"I accidentally stepped on shit when I was walking, and I happened to have an injury on my foot. Do you want to get rabies vaccine?" You must want to know such a wonderful question. "After the baby is vaccinated, why do you have to wait for 30 minutes to leave the hospital?" You must be very concerned about such common problems. "With HPV vaccine, you can stay away from cervical cancer once and for all?" You must not miss such a hot question.

　　At the final of "Guangzhou Vaccination Science Popularization Competition in 2020" held recently, all kinds of knowledge about vaccines and vaccination made people learn a lot.

　　The birth process of vaccine is not simple.

　　Since ancient times, human beings have been fighting against viruses, and have gradually discovered the magic weapon to win — — Vaccine. There are several ways to produce vaccines, one of which is — — Take inactivated vaccine as an example to talk about the birth of vaccine.

　　First of all, scientists should isolate the virus from the source of infection. The isolated virus can not be used directly, and it needs to be processed before screening out the ideal strain. Then these strains are cultured and propagated on the cell matrix; These strains contain some impurities, which need to be removed by filtration. Then treated with formaldehyde and other solutions to make the strain lose its pathogenicity and retain its antigenicity; Finally, through a series of processing, inactivated vaccine can be born.

　　But this vaccine can’t be injected into human body at this time. In order to ensure safety and effectiveness, the vaccine needs to undergo strict tests at different levels. The first level is the animal test. After passing the animal test, it can be reported to National Medical Products Administration to apply for clinical trials. The clinical trial is divided into three phases. This is for the sake of safety, and the test population should increase in a step-by-step manner. Only after the safety of the first-phase clinical trial is ensured can the second-phase clinical trial be carried out to study its effectiveness. In the last three phases, a randomized, blind and placebo-controlled design should be adopted to comprehensively evaluate the effectiveness and safety of the vaccine in a wider range of people. All clinical trials generally take at least 3-8 years, and some even take more than 10 years. If the vaccine fails to meet the requirements in the test, it will be stopped or even terminated.

　　After passing the above-mentioned layer-by-layer tests, it is necessary to go through enterprise self-inspection, expert review, on-site inspection by the Food and Drug Administration, and identification by the Central Inspection Institute to confirm that the vaccine is safe and effective, the process is true, and the quality is controllable. At this time, the vaccine can be officially marketed and promoted.

　　Today’s children have been vaccinated to prevent various diseases shortly after birth. One of the most common phenomena is that babies are usually asked not to go home immediately after vaccination in the hospital, and can only go home after observation in the observation room for at least 30 minutes. Why is this? Is there anything unsafe about the vaccine? In fact, adverse reactions may occur after vaccination, but the probability of occurrence is very low. There are two kinds of adverse reactions, one is a relatively common general reaction, such as fever, redness and swelling at the injection site, poor appetite, etc. There is also an abnormal reaction, which means that the vaccine is qualified and the vaccination process is standardized, but it has brought some damage to the baby’s body. Both of these reactions belong to "adverse drug reactions with no fault on both sides".

　　If the baby’s body temperature does not exceed 38℃, you can use the method of physical cooling and pay attention to rest to return to normal; If the inoculation site is red, swollen and indurated, it is generally not necessary to deal with it, and special attention should be paid to it. It is forbidden to apply hot compress after inoculation with BCG. If the baby’s temperature exceeds 38℃ or the general reaction is serious, you should seek medical treatment immediately without delay.

　　Therefore, don’t go home immediately after vaccination, also for "just in case".

　　There is no need to get rabies vaccine when you step on shit when you have a foot injury.

　　When a Panyu player popularized the vaccination of rabies vaccine, he mentioned a new knowledge point that people didn’t know much about before: if a dog bites you, you can observe the dog for ten days. If the dog doesn’t get sick, then the remaining shots of rabies vaccine that we have started to vaccinate don’t need to continue.

　　We know that 95% of rabies in China is spread by sick dogs, followed by some carnivorous mammals, such as cats, bats, foxes, wolves and raccoons. Cold-blooded animals such as poultry, fish and insects will not infect and spread rabies. You don’t need rabies vaccine after being bitten by rodents, rabbits and rabbits. Infectious diseases of dogs, cats and other animals are usually spread to them by external animals. Once a cat or dog is bitten by an infectious animal, the incubation period of the virus in their bodies is generally more than one month, but only in the saliva of the cat or dog 3-5 days before the onset of the disease may rabies virus be carried. Therefore, for some cats and dogs that are confirmed to be healthy, such as domestic cats and dogs that have a clear history, are not free-range or wandering, have never been bitten by animals suspected of rabies, and have been regularly injected with rabies vaccine, it is not necessary to take rabies vaccine when bitten by these cats or dogs.

　　Someone asked, "I accidentally stepped on shit when I was walking, and I happened to have an injury on my foot. Do you want to get rabies vaccine?" In fact, there is no need to get rabies vaccine. But it is best to clean the wound in time to prevent infection by other germs.

　　However, most people are not sure whether the biting animal is healthy after being bitten by an animal, so it is certainly right to think of vaccination at the first time. However, the rabies vaccine needs 5 shots in the whole process, and there is an interval between every two shots, so it not only costs money, but also takes time. Here is a "ten-day observation method" worthy of attention — —

　　First of all, for peace of mind, you can get vaccinated first, and at the same time lock up the biting dog for observation; If the dog is still very healthy after ten days, which proves that the biting dog was not in the period of rabies infection at the time of the incident, then you don’t need to take the rest rabies vaccine. If the dog is abnormal during the observation period, then your vaccine must be finished.

　　Vaccination with HPV vaccine is not 100% away from cervical cancer.

　　Like "settled" in the female cervix of the HPV virus, the scientific name is human papillomavirus, which is the chief culprit leading to cervical cancer. According to the ICO (Catalan Cancer Institute) report on HPV and related diseases in China released in 2018, 98% of cervical cancer in China is caused by high-risk HPV infection. There is no specific medicine for HPV infection at present. However, human beings have developed an HPV vaccine. After vaccination, the body can produce antibodies to eliminate high-risk HPV, thus preventing cervical cancer.

　　It has been known that there are more than 200 family members of HPV virus, and only 14 species can really "make waves" on human cervix. These fourteen kinds are called high-risk HPV, among which HPV16 and 18 are the most powerful, and 69% of cervical cancer is attributed to them.

　　At present, the HPV vaccines on the market are bivalent, bivalent and bivalent. If you hit the price of 2 and 4, you can prevent about 70% of cervical cancer; The tetravalent vaccine can also prevent 6/11 types of 14 high-risk HPV, which can prevent sexually transmitted diseases caused by these two types of viruses; On the basis of 4 valence, 9 valence has the function of preventing 31/33/45/52/58 type, which can prevent 92% of cervical cancer. The ideal vaccination time of HPV vaccine is before sex, that is, before the first exposure to HPV infection, but women who have had sex can also benefit from HPV vaccination.

　　Why does HPV appear in the human body? Mainly through sexual behavior, or contact with unclean sanitary ware or supplies. It is worth noting that women who are sexually active and have many sexual partners are particularly vulnerable to infection. But not being infected with high-risk HPV means getting cervical cancer. Only when high-risk HPV is continuously infected for 10 to 20 years will it naturally evolve into cancer. In this process, most people’s body functions can remove HPV.

　　It is worth reminding that the HPV vaccine is not once and for all. The HPV virus family is "numerous", and about 7% of cervical cancer can not be prevented by vaccination with HPV vaccine for the time being. So if you are old enough to have regular screening for cervical cancer, you should remember to have regular screening. If HPV vaccination is the primary prevention of cervical cancer, regular cervical cancer screening is the secondary prevention. Only when primary and secondary prevention are done, the "big devil" of cervical cancer will not be easily encountered. (Yangcheng Evening News reporter Li Gang)