China’s first international standard ski jumping venue stunning the world-"Snow Ruyi" shows the beauty of China culture.

  It has the longest ski jumping track in the world, and it is the first ski jumping venue in the history of the Winter Olympics to set up a large cantilever building at the top departure area.

  It is known as the most designed ski jumping platform in the world, just like a wishful handle, lying in the mountains with a graceful posture, and it is one of the most recognizable "star venues" in the Beijing Winter Olympics.

  It is the national ski jumping center located in the ancient poplar complex in Zhangjiakou of Beijing Winter Olympics. This venue, which is vividly called "Snow Ruyi", is also the first ski jumping venue in China that meets international standards.

  Behind the amazing world of "Snow Ruyi", it not only reflects the unique expression of China culture for the Winter Olympics, but also depends on the design concept that the design team combines technical breakthrough with aesthetic conception. Zhang Li, the chief designer of Zhangjiakou Division of Beijing Winter Olympics and dean of the School of Architecture of Tsinghua University, and his team participated in and witnessed the birth of Zhangjiakou Division, a competition venue with the highest technical difficulty and the largest workload. He presided over the design of "Snow Ruyi".

  How was the idea of "snow as you wish" born? How to embody the requirements of green hosting the Olympic Games? Where does the idea of architectural aesthetics and functional integration come from? Recently, Zhang Li and his design team accepted an exclusive interview with the Economic Daily reporter, revealing the cultural image and design concept behind "Snow Ruyi".

  Highlight the beauty of China’s design

  The track curve of platform skiing is "S". At the beginning of design, Zhang Li and his design team have been trying to find the elements of China traditional culture that fit the "S" curve. "Actually ‘ Snow ruyi ’ The starting point of the design is the curve of the track, using the beauty of the trajectory of the movement to find the transmission of China cultural elements. " Zhang Li said that the initial design team found hundreds of such elements. For example, armrests of round-backed chairs, antique frames, colorful clouds, scabbard, etc. Ruyi is the image that is best combined with ski jumping itself and recognized by all parties.

  In traditional cultural symbols, Ruyi is divided into three parts: the handle head, the handle body and the handle tail. "We identify ‘ Snow ruyi ’ The image, the most important thing is that the handle is a little ‘ S’ The curve of the shape, it is very smooth and very soft, which fits the gentle and modest beauty in China traditional culture. " Zhang Li said.

  However, it is very challenging to interpret the ideal form with architectural design. Yang Xiao, the head of Xueruyi structure and the chief engineer of the eighth branch of Tsinghua University Architectural Design and Research Institute, said that the structural design should not only realize the creativity of architects, but also ensure the safety and economy of the building structure, and overcome the large wind load and temperature on the top of the mountain, as well as the overturning moment and vertical earthquake caused by the huge eccentric ring.

  "Snow Ruyi" consists of summit club, slide area and bottom stand area. The biggest challenge is the first part of Ruyi, that is, the summit club in the departure area at the top of the National Ski Platform Center. To complete the expression of Ruyi’s overall image, the volume must not be too small. It is difficult to build a building with a height of about 50 meters on the top of the mountain, and there is a huge cantilever close to 40 meters.

  In order to overcome these challenges, the design team turned the originally designed solid disk into a hollow ring. This breakthrough in design gives the venue a reasonable and beautiful opportunity to meet the technical needs and serve the artistic expression from the top appearance to the structural calculation, and then to the internal space arrangement. "This makes the building structure more stable, the center of gravity more reasonable, the cantilever part lighter, the interior space richer, and the 360-degree panoramic view of Chongli Mountain." Yang Xiao said.

  Embody the concept of green hosting the Olympic Games

  In the competition venues of Beijing Winter Olympics, "Snow Ruyi" is regarded as one of the green, low-carbon and sustainable models. In the site selection, it makes full use of the natural landform, and the drop and shape of the valley where it is located are highly compatible with the competition requirements.

  In order to minimize the damage to the surrounding environment, the design team found another way to "frame" the 168-meter-long track in the air. However, in the valley, the "frame" needs a lot of cantilever and overhead design, which is more difficult in construction and needs to be treated with a foundation structure such as bored piles. This difficult task falls on Yang Xiao. In the choice of foundation scheme, the main structure of Xueruyi adopts the manual digging pile foundation scheme with low dependence on machinery and minimal influence on natural terrain. In the process of implementation, Yang Xiao has to go back and forth to the construction site several times a month to verify the engineering data such as the top elevation, pile length and bearing layer of each pile one by one. The design team calculates and rechecks in time according to the feedback data, and modifies the design drawings, finally achieving the goal of "rising from the ground".

  Wang Hao, an architect of Tsinghua University Architectural Design and Research Institute, said that during the construction process, Xueruyi and other infrastructures in Zhangjiakou Division used renewable and degradable materials and renewable energy as much as possible, and the standards of many materials exceeded the requirements of the building itself.

  "We hope to pass ‘ Snow ruyi ’ Show China people’s attitude towards nature and seeking harmonious coexistence. We seek between mountains and rivers ‘ Touch intervention ’ To integrate our building with the whole environment. " Zhang Li said.

  Create a circular shared space

  In previous Winter Olympics, there was always a group of venues called "Nordic Group", that is, the group of venues related to nordic combined and Biathlon, which became an important cultural tourism destination of the host city after the games.

  In Zhang Li’s view, architecture comes from life and should serve life. If a competition venue is only used by athletes during the competition, it will be difficult to combine it with the lives of ordinary people after the competition. If we want competition venues and facilities to serve the daily needs of ordinary people and play a long-term role in our cultural life, we must fully consider the post-competition utilization in the design of venues, which is also something to be solved under the guidance of the sustainable concept of Beijing Winter Olympics.

  The ancient poplar stadium group where "Xueruyi" is located covers an area of 420 hectares, including national ski jumping center, national cross-country ski center, national biathlon center and other venues and facilities. Between the ancient poplar venues, Zhang Li and the design team added a pedestrian bridge "Ice Yuhuan" for spectators and tourists to walk slowly, with a total length of more than 3,200 meters and a height of 7 meters from the ground, which is convenient for visitors to travel back and forth between venues, thus forming a slow-moving system. According to the calculation, the ancient poplar venues can provide about 185 minutes’ stay for the audience and tourists.

  A reverse slope is often made under the conventional ski jumping facilities, so that athletes can slow down faster. Different from this, under the platform of "Xueruyi" is a flat field, which extends the buffer distance of athletes and gives consideration to safety and post-game utilization requirements. According to reports, the venue can be used as a football field, which ensures that the stadium can be used for holding regular large-scale activities such as football matches and concerts after the Winter Olympics. This design also provides an example for the comprehensive utilization of single sports venues after the game.

  Architecture is also a symbol of culture. Zhang Li said that as an architect, he hopes to share China people’s understanding of the relationship between man and nature, the exploration of sustainable development, environmental friendliness and other concepts with the world through architectural works such as "Snow Ruyi", so that the world can appreciate more the beauty of China’s design and culture.

Start with the details! Genting Ski Park has stepped up the transformation of the Winter Paralympic Games.

Genting Ski Park in Zhangjiakou officially entered the transition period of the Winter Paralympics from the 20th, and the transformation work of track shaping, barrier-free facilities and equipment, Paralympic landscape and guiding signs was fully launched to prepare for the upcoming Winter Paralympics.

General Station reporter Yang Hailing:Standing at the high point of Genting Ski Park, you can have a clear view of the facilities including the track, venues and so on. During the whole Winter Paralympics, there will be two tracks for the Winter Paralympics, resulting in eight gold medals.

Ma Xuan, Secretary-General of Stadium Group Operation of Genting Ski Park in Zhangjiakou:The Winter Paralympics is different from the Winter Olympics. The Winter Olympics has six tracks, and Genting Ski Park has two tracks to serve the competition. One of these two tracks is called slope turning and the other is called obstacle chasing. The length of the track is about 550 meters, and the obstacle chase is about 1050 meters.

The staff used a combination of manual and mechanical methods to shape and re-shape the track to meet the needs of the Winter Paralympic Games. At the same time, the venue also adjusted the barrier-free streamline to ensure that people with disabilities can participate in the competition conveniently and smoothly.

Ma Xuan, Secretary-General of Stadium Group Operation of Genting Ski Park in Zhangjiakou:During the transition period of the Winter Paralympics, we focused on the disabled and made some adjustments in the streamline. For example, the wheelchair prosthesis maintenance center was put on the streamline of athletes. In addition, we also consider the streamline of the audience. If a wheelchair person comes to watch the game, we can provide him with barrier-free facilities such as elevators.

General Station reporter Yang Hailing:This is a security checkpoint in Genting Ski Park. In fact, the concept of accessibility was integrated into it at the early stage of the venue construction. Many such barrier-free ramps have been built in the venue, with the widest ramp reaching 1.8 meters. The standard is to accommodate two wheelchairs at the same time.

Ma Xuan, Secretary-General of Stadium Group Operation of Genting Ski Park in Zhangjiakou:During the Winter Olympics, we considered the barrier-free facilities of the Winter Paralympics, and planned, designed and constructed simultaneously. Therefore, during the Winter Olympics and during the preparatory period, we have built 80 barrier-free facilities, including 27 barrier-free toilets and 40 barrier-free ramps, and basically enough facilities have been built for the Winter Paralympics during the preparatory period.

The transition period of the Winter Paralympic Games in Genting Ski Park will be completed on March 3, and the transition work such as posting the logo and landscape layout of the Winter Paralympic Games is also being stepped up.

Open source "evolution theory" is hotly debated in the industry: China should actively integrate into the world open source "feast"

China news agency, Shanghai, December 19 (Reporter Beebee Cheng) "At present, 99% of enterprises are using open source software. Open source is the source of the digital economy. " Liu Wei, a member of the party group of Shanghai Science and Technology Association and a second-level inspector, said in Shanghai on the 19th. He said that people outside the circle should realize the value and significance of open source.
On the same day, the 2023 Open Source Industry Ecology Conference was held in Shanghai, which brought together a group of people from government and enterprises to talk about the importance of open source in the digital age and how to "break the circle" and "expand the circle".
Ge Dongbo, chief engineer of Shanghai Economic and Information Technology Commission, pointed out at the meeting that in recent years, China has made positive contributions to the construction of global open source ecology, and the commercial value of open source has been gradually recognized in China market. Shanghai will actively participate in the construction of international open source communities and promote the in-depth cooperation and exchanges between Shanghai and the global open source industries.
Chen Qiyan, founder and CEO of Daoke, said that some enterprises regard the open source community as a "playground without tickets", but most enterprises that only "copy" are difficult to "go far" because iteration is the core value of software.
"People in the’ open source world’ have long wanted to understand this logic. It is not that everyone is an idealist and throws the code into the open source community, but that everyone wants to understand that the code (itself) is worthless. Only more smart people can update the code together, which is the source of value of the underlying technology. " He said.
At the same time, he also pointed out that in the existing architecture, industry interest groups are solidified, and many innovative technologies at the source are difficult to survive and "die" on the beach early; The open source community has provided a fertile ground for technological growth, and also enabled China to quickly break through many barriers of information technology in the past 10 years. He believes that despite the challenges and difficulties, China should actively integrate into the world’s open source "feast".
"An open ecology is more conducive to the reliability of evolution." Wang Xu, vice chairman of the Open Source Technology Committee of Ant Group, said. He gave an example at the meeting: the Galapagos Islands are far away from the land, and their evolution is very "specific". The creatures living on them are well adapted to the environment, but once there is climate change or these creatures are moved to other places, it is difficult for them to survive. Wang Xu believes that in the field of technology, too, open flow is the accelerator of technology "evolution".
According to Gong Ti, president of Huawei’s BG software department, under the new wave of the times, if a closed development model is adopted, it will become more and more difficult for a technology or a company to produce a subversive innovation. The open source and open innovation model is the only way to move towards the era of all things.
He Baohong, director of the Institute of Cloud Computing and Big Data of China Information and Communication Research Institute, pointed out that one generation has an industrial ecology. Facing the new technological environment, open source is not limited to open software.
"When we write programs with AIGC, how to define open source?" "Can the code generated by AI enter the open source community?" He pointed out that these are all emerging new problems and need to be answered by the industry together. (End)
Reporting/feedback

Guangzhou welcomes everyone who comes to live here.

  In the Millennium at the turn of the century, song ordering service was popular in prime time of TV stations. Yueyang, a fifth-grade student, became obsessed with the classic Hong Kong music in the radio waves, and became a die-hard fan of Beyond, a Hong Kong rock band in China. "I bought all the DVDs, VCDs and CDs about this band.". In 2012, this thick "spiritual sustenance" was brought to Guangzhou from Xi ‘an as he started his TV news career, and now it is neatly placed in the glass display cabinet of Yueyang’s new living room.

  Since the beginning of this year, Yueyang, who is keen on sports, has not only interviewed Guangdong sports stars such as Yi Jianlian and Chen Guohao, but also participated in live broadcast or hosted large-scale sports events such as Guangzhou International Dragon Boat Invitational Tournament, Guangzhou Marathon and Guang Zhouta Denggao Open. In his lens, the city is tolerant and full of vitality.

  "Guangzhou welcomes everyone who is willing to work hard to develop here."

  In 2018, recommended by colleagues, Yueyang moved into Vanke Jinyu Lanwan, located in Jinshazhou, from a family building of more than 30 years old near Luyuan Road, and became a Vanke owner. In this big community where my mother has repeatedly lamented that "the green environment is too comfortable", Yueyang likes to run along the river every day and watch Laoguang people play chess and sing songs. In his spare time on weekends, he prefers to travel through the city and record the moments of people’s life with black and white lenses.

Yueyang likes to record the life moments of people coming and going with his own lens.

  "There are many restaurants in the north around Baohanzhi Street, and the mutton soup is delicious!" In Yueyang’s taste impression, Yangcheng cuisine is all-encompassing. There are "biang biang noodles" in old Xi ‘an, hot soup in Henan and snail powder in Liuzhou, Guangxi.

  Today’s Baohanzhi Street is like a small "global village". In addition to many African friends living here, there are also friends from the Middle East and dream catchers from all over the country. In the neighborhood, the characteristics of Guangfu are not the mainstream, and all kinds of western restaurants, Southeast Asian restaurants and exotic shops are dotted around. There are many international firms in Xiatang West Road, Xiaobei Road and nearby roads on the periphery of the street. People of different colors come and go, and the goods of the Millennium merchants are transported to all parts of the world through these firms.

  "I know a Tanzanian friend here. He came to Guangzhou with his parents to do business. We often meet to play ball. After he returned to China this year, he shared his life in Africa with me." In Yueyang’s eyes, Guangzhou is an inclusive city. "As long as you are willing to be practical and practical, Guangzhou welcomes everyone who comes to live here."

  "The media profession is a window that shows me the colorful world."

  "I love the media industry because it is a window for me to see the world, from which I can see all kinds of people and make close friends." Yueyang said.

  During the May 4th Youth Day this year, Yueyang planned a series of reports on "Youth Should Be Promising" and interviewed a group of promising young people. Among them, after 00, Chen Guanfeng, a young man known as the successor of "Su Shen", broke the best result in Asia created by Su Bingtian in the same year and the same season in tianjin railway station in 2023.

  However, when overwhelming care, love and even curiosity flooded into Chen Guanfeng, Yueyang chose to turn off the camera before the interview, sat cross-legged on the huge plastic track of track and field, and chatted with the young 00-year-old.

  "I don’t want to consume him or put pressure on him." Yueyang said, "What a coincidence! We all love beyond! "

  The shy Chen Guanfeng quietly told Yueyang that he had to wear headphones to listen to beyond’s songs every time he was training for strength. "He said it was his belief," Yueyang said, pointing to his own video. At the moment, the soundtrack of the picture is the well-known "Broad Sky".

  Since 2015, Yueyang, as the anchor of the program, has organized more than 10,000 tourists to visit Kenya, Russia, Turkey, Indonesia and other countries, bringing enthusiasm and goodwill to the people from Guangzhou on seven continents and four oceans.

  After eight years, Yueyang will often miss playing football with children from the African island country of Madagascar. "They are as pure and clear as the phrase’ I believe in baby’s eyes’ in Chyi Chin’s Declaration of Love. Although each other’s languages are unreasonable, sports have no borders. "

  On the way back from filming that night, the style blowing from the Indian Ocean was refreshing, and the rice fields on both sides of the road whizzed. "We all thought it was time to stop. Everyone got off the bus and ran towards the golden full moon under the deep blue sky in the field."

  Among the police accompanying the protection column group that night, an African guy who wanted to visit Guangzhou impressed Yueyang deeply. "I gave him a fan with the words’ Yueyang Tower’ and told him that if time permits, he would come again in 2025." At the time of parting, Yueyang pointed to the moon and told the other party in English that in Chinese culture, the moon can be used to pin his thoughts. "He is very excited and his eyes are shining."

  Be keen on sports and witness the growth of vibrant Guangzhou.

  In the reading stage, every Monday and Thursday, there will be a figure of Yueyang buying Basketball Pioneer in front of the newsstand. After work, after more than ten years of TV news, tracking sports hotspots has become Yueyang’s daily work. This year, he interviewed China Men’s Basketball Team and Guangdong Men’s Basketball Team, which won the 2023 National May 1 Labor Medal.Yi Jianlian, a member of the team, interviewed Chen Guohao and other famous sports players who led Guanggong to reverse Tsinghua’s first championship in team history and won the CBA "No.1 draft".

  Yueyang is also often active in the scenes of major sports events in Guangzhou. On December 3rd, 2023, "Guang Zhouta Denggao Open" was held for ten years, which was the tenth consecutive year that he participated in the live broadcast of the event. The event attracted the active participation of athletes from all over the world, and athletes from Su Bingtian, Sun Yingjie and Lao Lishi also gathered in Guang Zhouta to witness the ascent. After ten years’ deep cultivation, Guang Zhouta Climbing Race has become the largest vertical climbing race in the world and the most influential in China. Together with Guangzhou Marathon and Guangzhou International Dragon Boat Invitational Tournament, it forms the Guangzhou sea, land and air race system.

  In his spare time, Yueyang almost arranged to play basketball three days a week, playing with colleagues after work on weekdays, and staying with the owner basketball community in Jinyu Lanwan on weekends. As the owner, Yueyang agrees with Vanke’s healthy and rich corporate culture. He is not only an active member of the community sports community, but also a loyal fan of Vanke Sports IP- City Music Run. This year, he was invited to participate in the Guangzhou City Music Run, which returned after three years, and planned to show his strength in Shabu Ancient Village, Huangpu on 1228.

  "Sports keep me full of energy, and I am very happy to see Guangzhou gradually transform into a fashionable, healthy and progressive international metropolis." Yueyang said.

Today’s SMG football recommendation; Selected score prediction of the event, Bologna VS Lazio comes with live ammunition.

Hello, everyone, here is Huang Jieqiu, and it’s the same place at the same time. We meet again. Today is Friday, and there are few events. So if we read this article, let’s take a look at the three popular games tonight. It’s still the old saying, flowers bloom every day, and the following contents are all created for personal interest, for your own reference.

Bologna: Ranked ninth in Serie A last season, and performed well in Serie A this season, ranking eighth in the Serie A standings with 3 wins, 6 draws and 11 losses. Bologna is known as the king of draw in Serie A this season, with 4 wins, 6 draws and no defeat in nearly 10 games. The team’s morale is high. The team is also excellent in defense, especially in defense. In the last 10 games, the team only lost 6 pitches with an average of 0.6 goals, which is relatively average in offense. The team’s competitive ability at home is also excellent. Recently, except for AC Milan who scored 3 points away from home, all other Bologna are unbeaten.

Lazio: Serie A ranked second last season. This season’s performance was average. The team ranked seventh in Serie A with 5 wins, 1 draw and 4 losses. The team’s recent state has picked up, with 4 wins and 1 loss in the last five competitions showing quite good competitive ability. The team’s defensive and offensive performance this season is average. The team’s away ability is not too bright, with 3 wins and 4 losses in the last 7 games.

Comprehensive analysis: The two teams played against each other six times, and Bologna had two wins, one draw and three losses. From the historical record, Lazio had a certain psychological advantage, but it is worth mentioning that the two teams played against which team’s home six times, and this team was invincible. Based on the recent state and strength of both teams, I personally feel that Bologna is unbeaten at home in this game.

Reference:Rangsheng

Reference:1-0 2-1

Leicester City: Last season, it was relegated from the Premier League. The key operation was to basically retain the lineup of last season’s Premier League campaign. The team won 13 wins and 1 loss in 14 rounds, and it was 14 points ahead of the third Leeds United in just 14 rounds. It can be said that Lecce City will return to the Premier League just around the corner. Two Premier League strikers in Leicester City, Valdi and Ishi Na Qiao, jointly scored 9 goals, and with Hall’s 5 goals and McCarter’s 4 goals, Lecce City’s frontcourt firepower was fully open. Leicester city’s recent form is impeccable, winning a series of nine consecutive victories in the league, only losing to Liverpool in the League Cup, but this does not affect their determination to return to the Premier League. This season, leicester city scored 6 wins and 1 loss at home, only conceded 3 goals in 6 games, and the defensive performance can be said to be impeccable.

Leeds United: Also as a demoted horse, it is not bad to be ranked third in the Championship. In the last five rounds, Leeds United achieved 4 wins and 1 loss. As a guest, the performance of Leeds United was slightly average, and all three losses occurred as guests. Although Leeds United is also one of the popular teams to upgrade, after 14 rounds of league matches, they have fallen behind the second Ipswich by as many as 9 points, and they have played one more round than their opponents. If you want to qualify for direct promotion at the end of the season, you should try to reduce the loss of points in future competitions. Leeds United scored 4 wins and 1 loss in the last 5 games, but lost to Stoke City in the last away game. Leeds United’s injuries are relatively serious. Spencer and Joe Roden are injured, and Stuart Dallas and Filpo can’t play this game.

Comprehensive analysis: The last two defeats were on the road. Compared with leicester city’s momentum, it is obvious that the White Legion still needs to work hard. In the face of another relegated horse Southampton, Leeds United lost by a big score on the road, while leicester city was able to take away three points on the road against Southampton. This also shows that leicester city is really capable of leading the British Championship at present, and this game is at his own home in Fox City, so it is still optimistic that Fox City can win three points!

Reference: victory

Reference: 2-0 3-1

Las palmas: He is a newly promoted horse this season. He has performed well on the whole. At present, he has achieved 4 wins, 2 draws and 5 losses, ranking 10th in the league. The team defeated almeria 2-1 in the last round, and achieved 3 wins and 1 loss in the last 4 games, which is in good condition. The team has scored 8 goals this season, and the offensive performance is not ideal. In the last 5 games, it has lost 6 goals, averaging 1.2 goals per game, and its defense is unstable. The team scored 2 wins, 2 draws and 1 loss at home, with a good performance and stable defensive efficiency.

Atletico Madrid: This season has performed well. At present, it has achieved 8 wins, 1 draw and 1 loss, ranking third in the league, and falling behind the top Real Madrid by 3 points in the case of one round less. The team defeated Alaves 2-1 in the last round, won all the last six league games, and also defeated the powerful Real Madrid, and recently performed very strongly in the game. The team scored 3 wins, 1 draw and 1 loss away from home, scored 12 goals and lost 3 goals. The offensive and defensive performance was excellent. Although Atletico recently fought on two fronts, its performance is still stable, and it has remained unbeaten in nine games. Las palmas has scored 1 win and 9 losses against Atletico Madrid in recent 10 times, and its past performance is obviously at a disadvantage. Las palmas’s recent performance is acceptable, and the team won two consecutive victories. However, Atletico Madrid’s recent state is relatively stable. Although it has fought on two fronts, it has achieved good results.

Reference: negative

Reference:1:2 0:1 0:2

Badminton, how to teach yourself?

If you want to play badminton well, you should first pay attention to basic skills and comprehensive basic skills, and consider it from a long-term and development perspective.

1. Manipulation essentials

Whether the technique is good or not is closely related to how to hold the racket..

(1) Hold the racket to live.

Before hitting the ball, don’t hold the racket tightly at any time (it is wrong to hold the racket rigidly), and only hold the racket tightly when you are about to hit the ball hard, which is conducive to exerting your strength. After completing the batting action, againanswerTo relax and hold the racket.

⑵ The grip should be changed.

Forehand and backhand, active and passive, playing different techniques, the position of fingers (mainly thumb, index finger and middle finger) should be changed.

(3) the grip should be loose.

Don’t cling to the handle, pay special attention to controlling the strength and making the "twisting action" of your fingers, which will help to improve the delicate techniques such as before the net, hanging the ball, catching and blocking the net.

The advantage of correct manipulation is that the strength of all parts of upper limbs-shoulders, upper arms, forearms, wrists and fingers can be used reasonably and harmoniously.

Especially the explosive force of the wrist and the flexibility of the fingers.

Pay attention to good control when exerting force;

The strength, the speed of the concerto and the change of direction will directly affect the quality of the technology.

Talk about the consistency, concealment and mutation of technical action again.

What is said is that several different technologies should be consistent when doing preparatory actions.

Just at the moment of hitting the ball, I used different strength and made different actions.

Or suddenly erupt, or control power, or change direction.

For example, use the preparatory action to kill the ball to hang the ball or hit the high ball, and use the preparatory action (posture) to kill the diagonal.

Zhao Jianhua’s technique has this characteristic, which makes it difficult for the other party to judge and increases (or improves) the threat.

2. Footwork essentials

Mastering a good technique, without correct footwork, will often affect the force or fail to complete the action because the footwork is not in place, resulting in mistakes or a passive position.

howFootwork ofIs the right one?

First, when preparing for the action, the body’s center of gravity is placed between the left and right legs and constantly shifts.

For the right-handed grip, the right foot stands slightly ahead of the left foot, the left foot can’t follow the ground, and the body center of gravity keeps moving between the forefoot of the left foot and the right foot. This kind of preparation is helpful for the start of footwork.

Second, the starting of footwork.

Adjust the body center of gravity and make a quick step with your left foot; Then take another step with your right foot, or take off in parallel.

Third, pay attention to using the strength and rotation of the hip joint (rotating left and right along the longitudinal axis of the body) to complete the support and pedaling.

For example, after hitting the head ball back, catch the twists on both sides, catch the pedal force of hanging the internet, etc.

It is faster and more powerful to use the hip to drive the body to rotate than the waist. Moreover, excessive use of the waist will cause excessive local load on the waist, resulting in strain contusion.

Fourth, the lower limbs (feet) should move faster.

Including quick start and quick return, many people notice the quick start and ignore the quick return, which is not conducive to the next start.

The above essentials will helpQuick startTo improve the flexibility of footwork.

When there is a judgment error, it can be adjusted quickly.restarting.

There are three kinds of footwork: active, passive and transitional.

Generally speaking, active footwork (offensive footwork) has a higher body center of gravity and a higher hitting point.

Most of them use the method of pedaling and jumping, and pedaling and stepping.

Passive footwork (defensive footwork) has a lower body center of gravity and a lower hitting point. Most of them make a small step with the left foot and a big step with the right foot.

Transitional footwork, the body center of gravity is located between the first two footwork.

Neither high nor low, the pace is slightly slower, and cross steps can be used.

The main function is to adjust the center of gravity of the body to facilitate the next action.

In the process of confrontation, initiative and passivity, attack and defense or stalemate are constantly changing.

Changes in the height of the body’s center of gravity should be timely.

Basic technical exercises

Including: lob, lob, kill and net ball, etc.

Practice the basic skills from easy to difficult.

Including:

From static to moving, from single line to double line;

From the combination of two techniques (such as: lob and lob, kill and lob, lob and net ball, etc.) to the combination of multiple techniques;

From fixed ball path to changing ball path;

From hitting the ball in place (actively) to hitting the ball at multiple points (including passive), it has gradually developed into tactical technical training, such as offensive and defensive exercises, control and anti-control exercises.

Physical training

In addition to basic technical exercises and footwork exercises, other aspects such as:

Strength, speed, bounce, endurance, agility, coordination, etc., should be arranged in proportion according to the period to enhance physical fitness, which is the basis for injury prevention and ensuring large-scale exercise training.

2023 Turpan Jiaohe Marathon starts

2023 Turpan Jiaohe Marathon starts

Turpan Media Center News (Text/Photo Reporter Gapar Liu Jian) On the morning of April 22nd, the "2023 Turpan Jiaohe Marathon" started in Jiaohe Old Town, and more than 2,300 marathon professionals and amateurs from all over the world participated.

On April 22nd, 2023 Turpan Jiaohe Marathon started. Turpan Rong Media Center reporter Liu Jianshe

The competition was hosted by Turpan Municipal People’s Government and jointly undertaken by the Municipal Bureau of Culture, Sports and Tourism, the Municipal Cultural Relics Bureau, the Municipal Sports Federation and the Autonomous Region Self-driving Sports Association. There are three events in the competition: full marathon (42.195km) men’s group and women’s group, half marathon (21.0975) men’s group and women’s group, and mini marathon (5km, male or female).

On April 22, the contestants ran on the ring road of Jiaohe Old Town. Turpan Rong Media Center reporter Liu Jianshe

On the same day, the world cultural heritage Jiaohe Old Town was full of colorful flags, cheerful music and passionate dance. With the start of the gun, the players rushed to the track, and the audience was boiling with shouts and cheers. Xia Qingwen, a contestant from Changsha City, Hunan Province, said: "The marathon is a test of body and will. I am very happy to come to Turpan to participate in the competition this time. I will come again when I have the opportunity."

On April 22 nd, the winner of the men’s team in the full marathon finally sprinted. Turpan Rong Media Center reporter Liu Jianshe

On April 22 nd, I won a group photo of the men’s team champion and runner-up in the whole marathon. Turpan Rong Media Center reporter Liu Jianshe

It is understood that Turpan held the first "Turpan Jiaohe Marathon" in 2016. After years of brand building and careful preparation, the "Turpan Jiaohe Marathon" has been successfully held for three times, and the international influence of the event is getting higher and higher. It has become one of Turpan’s boutique sports events. The total prize money of this marathon is 211,600 yuan, which is the highest prize money in previous competitions.

On April 22 nd, the women’s team champion who won the full marathon finally sprinted. Turpan Rong Media Center reporter Liu Jianshe

On April 22 nd, I won a group photo of the women’s team champion and runner-up in the full marathon. Turpan Rong Media Center reporter Liu Jianshe

In recent years, Turpan has vigorously promoted the integrated development of sports and culture, tourism, education, health and other industries, concentrated on the development of "sports+tourism", made a big article on the integrated development of cultural tourism and sports, and made it bigger and stronger, such as sports event tours, sports recreation tours and other tourism cultural brands and new formats. Since the beginning of this year, Turpan has successfully held a number of sports events, which not only enriched the format of scenic spots, but also enhanced the tourist attraction and brand influence of scenic spots, and further made Turpan’s tourism brand image known as the "Pearl of the Silk Road in the Holy City of Grapes".

Xiao Jianwu, Deputy Secretary of Turpan Municipal Committee, Party Secretary and Vice Chairman of CPPCC, and Secretary of Political and Legal Committee of Municipal Committee delivered a speech and announced the start of "2023 Turpan Jiaohe Marathon".

Video: Liu Yujie Zhu Fuping Wang Lingyue

Google released the "super brain" PaLM-E in history, and robots have become versatile since then.

What happens when ChatGPT has vision?

Editor’s note: ChatGPT has grabbed most of the limelight in the AI field during this time. But recently, an AI model PaLM-E launched by Google, which has visual ability and can guide robots without special training, has also shown impressive capabilities. The emergence ability of this largest visual language model so far makes people think about general artificial intelligence. The article comes from compilation.

On Monday, a team of artificial intelligence researchers from Google and Technical University of Berlin launched a multimodal visual language model (VLM), which is called Palm-E. The model has 562 billion parameters and integrates vision and language for controlling robots. Researchers claim that this is the largest VLM ever, and it can perform various tasks without retraining.

According to Google, PalM-E can generate an action plan for a mobile robot platform (developed by googlebot) with a mechanical arm, and then execute it by itself, just by giving it a high-level command, such as "Give me the rice cake in the drawer".

PaLM-E realizes this by analyzing the data from the robot camera, and the whole process does not need to preprocess the scene representation. In this way, there is no need for human beings to preprocess and annotate the data, and the control of the robot can be more autonomous.

In the demo video provided by Google, PaLM -E carries out the instruction of "get me a bag of rice chips from the drawer", which includes several planning steps and visual feedback from the robot camera.

This model is also flexible and can respond to the environment. For example, the PaLM-E model can guide the robot to the kitchen to take out the rice cake bag. Because PaLM-E is integrated into the control system, it can be tolerant of possible interruptions during the task. In a video example, the researchers put the rice cake bag picked up by the robot back several times, but the robot will find the rice cake bag again and pick it up again.

In another example, the same PaLM-E model is shown to control the robot autonomously through tasks with complex sequences. Previously, such tasks often required manual guidance. Google’s research paper explains how PaLM-E transforms instructions into actions:

We demonstrated the performance of PaLM-E in challenging and diverse mobile control tasks. In the setting, we mainly follow the setting of Ahn and others. (2022), that is, robots need to plan a series of navigation and manipulation actions according to human instructions. For example, give the instruction "I spilled my drink, can you bring me something to clean up?" After that, the robot needs to plan an action sequence including "1. Find the sponge, 2. Pick it up, 3. Give it to the user, 4. Put it down". Inspired by these tasks, we developed three use cases to test PaLM-E’s embodied reasoning ability: fitness prediction, fault detection and long-horizon planning. Low-level policies come from RT-1 (Brohan et al., 2022), which is a transformer model. It can use RGB images and natural language commands, and then output end-effector control commands.

PaLM-E belongs to the "next-token predictor", so it is called "PaLM-E" because it is based on Google’s so-called "PaLM" large language model (similar to the technology behind ChatGPT). By adding sensory information and robot control, Google "visualized" PaLM.

Because it is based on the language model, PaLM-E can continuously observe, for example, images or sensor data, and encode them into a series of vectors with the same scale as language tags. In this way, the model can "understand" sensory information in the same way as language.

Google also provided a demonstration video, which showed that a robot "gave me a green star" under the guidance of Palm-E. The researchers said that this green star "is an object that this robot has not directly touched before."

In addition to the RT-1 robot transformer, PaLM -E also draws lessons from Google’s previous work on ViT-22B. ViT-22B is a visual transformer model released in February this year. ViT-22B has been trained in various visual tasks, such as image classification, object detection, semantic segmentation and adding subtitles to images.

Google Robotics is not the only research group dedicated to robot control using neural networks. This research reminds people of the paper recently published by Microsoft (ChatGPT for Robotics), which also discusses the control of robots by combining visual data with large language models in a similar way.

Robots aside, Google researchers have observed some interesting effects, which are obviously because PaLM-E uses a large language model as its core. First of all, it has the performance of "positive migration", which means that it can transfer the knowledge and skills learned from one task to another. Compared with the robot model with single task, the performance of the former is significantly higher than that of the latter.

In addition, they also observed a trend of model scale: "The larger the language model is, the more it can maintain its language ability when training with visual language and robot tasks-in terms of quantity, the PaLM-E model with 5620 parameters almost maintains all its language ability. “

PaLM-E is the largest VLM reported so far. Although we have only received the training of single image prompt, we have observed the emergence of emerging abilities such as multimodal thinking chain reasoning and multi-image reasoning. Although this is not the focus of our work, PaLM-E has set a new SOTA (Best Performance) on the OK-VQA benchmark.

——Danny Driess

Researchers claim that PaLM-E has demonstrated its emergent abilities, such as multi-mode thinking chain reasoning (which allows models to analyze a series of inputs including language and visual information) and multi-image reasoning (which uses multiple images as inputs to make reasoning or prediction), even though it has only been trained with single image cues. In this sense, as the deep learning model becomes more and more complex, PaLM-E seems to continue to surprise people.

Google researchers also plan to explore more applications of PaLM-E in real-world scenes, such as home automation or industrial robots. They hope that PaLM-E can stimulate more research on multimodal reasoning and embodied AI.

The word "multimodal" is very hot now, and we will hear more and more in the future, because major companies want to make general artificial intelligence that looks like human beings to perform general tasks.

Translator: boxi.

1:0! Harland outbursts: 28 goals in 26 games broke the team history record again, and Manchester City was 2 points behind Arsenal.

In the early morning of March 12th, Beijing time, the 27th round of Premier League continued, and Manchester City played away against Crystal Palace. In the first half, Rodley’s shot was saved by Guaita, and in the second half, Foden’s free kick was saved by Guaita. Then Alvarez turned to lead the ball and volleyed it high, Gundogan made a point and Harland hit it. In the end, Manchester City beat Crystal Palace 1-0 away.

Manchester City beat Newcastle 2-0 at home in the last round to win the local derby. However, Nalsen’s winner made the Gunners still lead the standings by five points, making it difficult for Manchester City to defend the Premier League title. Crystal Palace, headed by former Arsenal captain Vieira, has never won a game in the last 10 games, only four points higher than the relegation zone before the game, but they won 1 win and 1 draw against Manchester City in two rounds last season. In the first leg, Manchester City won 4-2 at home, and Harland scored a hat trick.

Although the key matchup of the second leg of the Champions League knockout round is about to come, Guardiola did not have a clear rotation in this game. The two main players, De Braune and Walker, all sat on the bench, and the four central defenders, Ake, Diaz, Akanji and stones, lined up in the defense line; Rodley, Gundogan and B are in the midfield; Grali, Foden and Harland teamed up to attack the Trident.

There is a big gap between the two sides in terms of strength. Crystal Palace directly stationed troops to defend, while Manchester City formed a siege. In the second minute of the opening, Grali made a cross from the left, Diaz headed the ferry, and Rodri shot was saved by Guaita bravely. In the 4th minute, Grali made a breakthrough through a dragon, and then a shot in front of the restricted area missed slightly. In the 26th minute, Akanji made a long-range shot outside the restricted area, and the ball grazed the crossbar. In the 28th minute, Rodley went straight to the left, Grali made a cross on the left, and Aker inserted it and passed it again. Harland outflanked in front of the door and pushed it high. In the first half, Manchester City had 72% possession and 8 shots, but the score was still 0-0.

In the second half, Manchester City continued to exert pressure. In the 55th minute, Grali won an excellent free kick for Manchester City, and Foden shot the free kick directly. Guaita once again turned the ball away. Seeing that the situation continued to be deadlocked, Guashuai took the lead in taking the initiative to replace people, and Alvarez went on stage to strengthen the attack. In the 60th minute, Grali sent a straight plug from the right, and Alvarez turned and led the ball, then volleyed high.

Until the 78th minute,Gundogan was thrown to the ground by Ollie in the penalty area, and the referee decisively awarded a penalty. Harland stood in front of the penalty and hit it, 1-0!Manchester City finally took the lead, which is Harland’s 28th Premier League goal this season. Even if Kane scored twice this round and increased the number of goals to 20, there is basically no suspense in the Premier League Golden Boot. It is worth mentioning that this goal is also Harland’s 10th away goal in the Premier League this season, and now his home and away league goals have reached double digits. Previously, only aguero in Manchester City achieved double-digit goals at home and away in the Premier League in the 2014/15 season, and Harland became the second player in the history of Manchester City to do this.

Thanks to the only goal scored by Harland, Manchester City took away three points with a 1-0 away win and won four consecutive victories in various competitions. In the case of one more round, the difference with Arsenal was temporarily narrowed to two points, and Manchester City will face Red Bull Leipzig at home next week, which will determine whether Manchester City can enter the key battle of the Champions League quarter-finals.

[Chen Wei, deputy to the National People’s Congress: Accelerate the research and development of artificial intelligence and improve the health service capacity of Chinese medicine]

Chen Wei, deputy to the National People’s Congress and vice president of Quzhou Traditional Chinese Medicine Hospital, Zhejiang Province. Photo courtesy of respondents

In recent years, with the change of disease spectrum, the acceleration of aging, the improvement of residents’ living standards and many other factors, the demand for health services of residents has become increasingly diversified, and higher requirements have been put forward for rehabilitation, health care and other services.

"In terms of health care, Chinese medicine has advantages. The introduction of artificial intelligence technology into the field of Chinese medicine has created a new environment for its development. " During the two sessions of the National People’s Congress in 2023, Chen Wei, deputy director of the National People’s Congress and Quzhou Hospital of Traditional Chinese Medicine in Zhejiang Province, paid special attention to "accelerating the research and development of artificial intelligence and improving the health service capacity of Chinese medicine".

In her usual work, Chen Wei found that the intervention of artificial intelligence made it possible to use the "holistic concept" of traditional Chinese medicine to guide health management. "For example, in the health management at the stage of empowerment, personalized health management can be achieved by detecting and collecting relatively high-quality physical sign signals and intelligently predicting human health status through portable wearable intelligent equipment; In the health management at the stage of empowerment, the use of intelligent training means, combined with traditional Chinese medicine experience and strong artificial intelligence interaction means, can help long-term sub-health or groups with chronic diseases and physical disabilities to achieve rehabilitation training, and intelligently analyze physical function data to optimize and adjust treatment plans in real time. " Chen Wei introduced.

In the practical application of artificial intelligence equipment, many problems have also been exposed. "The main problems are unreasonable algorithm design and model construction, lack of available data of traditional Chinese medicine, lack of standards, and shortage of artificial intelligence talents of traditional Chinese medicine." For example, Chen Wei said that in the face of diseases with single condition and clear diagnosis, artificial intelligence equipment can still give a better diagnosis scheme, but in the face of more complicated cases, it will highlight the lack of flexibility and flexibility in diagnosis.

In addition, although the diagnosis and treatment of artificial intelligence brings great convenience to medical activities, it cannot give patients humanistic care. In the process of diagnosis and treatment, patients not only have to endure the physical pain caused by illness, but also bear great psychological pressure. At the same time, patients are often unable to accurately describe their illness due to great psychological pressure, lack of professional knowledge or limitations of diseases. Due to these vague or distorted information, the applicability of artificial intelligence instruments will be severely challenged.

To this end, Chen Wei suggested improving the top-level planning and pointing out the development direction. "Top-level planning is the premise of the development of artificial intelligence. In order to promote the development of artificial intelligence in the field of traditional Chinese medicine, relevant departments should scientifically analyze the development prospects and actual research and development of artificial intelligence in traditional Chinese medicine, and formulate top-level planning and phased research directions with disciplinary characteristics." Chen Wei believes that in view of the characteristics of "thousands of people and thousands of prescriptions" in traditional Chinese medicine, the planning should focus on improving the innovation of technology and the flexibility of equipment in the process of medical activities, making full use of the database of traditional Chinese medicine, and giving play to the functions of auxiliary diagnosis and treatment and health management of artificial intelligence of traditional Chinese medicine.

At the same time, the development of TCM artificial intelligence involves knowledge of TCM, computer, mathematics and other disciplines. The development of TCM artificial intelligence should take TCM as the core, take computer, mathematics, machinery, electronics, engineering and other disciplines as tools, improve the equipment software system, and standardize and digitize the data. In this regard, Chen Wei suggested that colleges and universities should establish and improve the training mode of compound talents of traditional Chinese medicine and artificial intelligence, optimize the high-tech innovation system, strengthen inter-disciplinary exchanges and multi-disciplinary cooperation and development, and provide conditions for training interdisciplinary comprehensive talents.

User experience is also a key point that cannot be ignored. Chen Wei believes that it is necessary to strengthen the technical training of medical personnel in TCM artificial intelligence equipment and application, so that small doctors can prescribe relatively accurate prescriptions and improve their diagnosis and treatment ability. At the same time, pay attention to the implementation of equipment use, encourage residents to actively experience the equipment and carry out the market demand survey of artificial intelligence in traditional Chinese medicine, so that the equipment can be fully utilized, truly serve the society, and promote the inheritance and development of health services in traditional Chinese medicine.