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How hard is it to transform “Water Cube” into “ice cube?

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Xinhua News Agency, Beijing, May 13th: How hard is it to transform “Water Cube” into “ice cube?

— Visit Sun Weihua, the chief design director of “ice water conversion” of the National Swimming Center

Xinhua news agency reporters Wang Meng and Ji Ye

in Beijing Olympic Park, the transformation of the National Swimming Center is in full swing. In order to welcome the 2022 Beijing Winter Olympics, the 2008 Olympic Games, as the “Water Cube” of swimming, diving and synchronized swimming events, will be transformed into “ice cube” and become the competition venue of cold water jug events. This transformation will also make the National Swimming Center become the two Olympic venues and the world’s first “ice water conversion” venue.

“After the 2008 Olympic Games, its unique image is deeply rooted in people’s hearts, and its unique architectural art also enjoys a certain position in the architectural field.” Speaking of this venue, Sun Weihua’s face was full of pride.

Sun Weihua is the chief design director of the “ice water conversion” of the National Swimming Center. He participated in the original design of the “Water Cube”, and now he faces the task of “ice water conversion” with his old colleagues. He admitted to the reporter that his mood was very complicated.

Sun Weihua said: “ice venues are relatively a relatively small type of architecture in China, with a certain degree of professionalism, and it is also a transformation of existing buildings, it is also the transformation of a famous building, and it is also the transformation of the stadium of the double Olympics competition, which can be imagined. But on the other hand, the design team including me, most of the main members are the old people in the period of” Water Cube “construction more than ten years ago. Everyone has deep feelings for” Water Cube “and has participated in its transformation and design work several times, large and small, we know ‘Water Cube’ very well. We think we have the innate advantages and emotional motivation to do better than others. Therefore, facing this task is a state of both pressure and confidence.”

According to Sun Weihua, from the date of birth, “Water Cube” has fully considered the continuity of future architectural life, realizing multi-functional operation requirements such as competition, visit, fitness, performance, etc, however, it is necessary to directly transform it from a summer Olympics venue to a Winter Olympics venue, which has few precedents in the architectural history. However, after communicating with the International Federation of cold water jug and consulting a lot of materials, sun Weihua found the similarity between the two venues, which greatly increased his confidence with the team members.

“First of all, in terms of site scale, a standard cold water jug games, such as cold water jug games on four tracks and a standard swimming pool, have a certain fit and are all rectangular. Then from the scale, the swimming pool is basically compatible with the requirements of cold water jug size. Therefore, we think that first of all, it is compatible from congenital conditions, which gives us great confidence.” Sun Weihua said.

However, the cold water jug competition requires high field stability, ice quality and flatness, and the swimming competition and the cold water jug competition require high temperature, humidity, light, the requirements of environmental factors such as acoustics are quite different. Sun Weihua joked, “this is changed from ‘water’ to ‘ice’, and what is more is really not just ‘two points ‘.”

“For example, ‘Water Cube’ turns out to be a swimming pool, and the temperature of the water, the temperature of the pool Bank and the temperature of the stands are a system. However, after switching to ice, its temperature field changed greatly. The temperature of the ice surface is about minus 8.5 degrees Celsius, 1.5 meters away from the ice surface, it becomes 10 degrees Celsius to plus or minus 2 degrees Celsius, and then to the audience area may become 18 degrees Celsius, this and the original temperature field distribution have relatively large changes. Humidity control should reduce the dew point temperature to minus 4 degrees Celsius.” Sun Weihua explained.

In addition, the “Water Cube” is a unique ETFE (artificial high-strength fluoropolymer) membrane structure building. The “water bubble” has good light transmission, but no light can shine on the ice during the cold water jug competition, the design team must find ways to not only present “The effect of water molecule bubbles, but also prevent direct exposure of light”, but also use sound absorption materials to control the reverberation time of the venue to 2 seconds, ensure that players can communicate with each other on the field.

More importantly, this transformation is not a one-off permanent project, but will be converted between “Water Cube” and “ice cube” many times in the future according to needs, to achieve “two-wheel drive”, it is necessary not only to “retain the functions of the original ‘Water Cube'”, but also to “increase the function of ice”, and even in the future, except for Cold Water Jug games, it should also be extended to ice hockey, short track speed skating and other fields.

“So we have something permanent, and some things need to be considered as a temporary switching mode.” Sun Weihua explained.

The “Water Cube” will be converted through the overhead structure in the swimming pool, which can also greatly reduce the cost of demolition and renovation in the later stage.

The application of science and technology is also a highlight of this transformation. In order to solve various problems in the process of “ice-water conversion”, experts from Harbin Institute of Technology, China Research Institute and Tsinghua University have carried out technical challenges, the air conditioning, dehumidification, air supply and other systems have been transformed, and the venue is planned to be “informationized” and “intelligent”, and the intelligent system has been upgraded during the transformation.

“We still pay special attention to the energy-saving and green transformation and upgrading measures of ‘Water Cube’ in this transformation. For example, we have adopted a series of measures to achieve our goal of energy conservation. First of all, we need to carry out some intelligent control. Its temperature, humidity, lighting and acoustic control system needs to realize automatic adjustment through intelligent control.”

Sun Weihua added that in the future to 2022, the design team will combine technology or terminal products to apply 5G, VR, AI, BIM and other technologies in the venue, even let the audience wear wearable devices to make them have a better experience during the competition.

Guangdong team won the CBA Finals nine times

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On May 3, in the fourth round of the finals of the 2018-2019 Chinese men’s basketball professional league (CBA), Guangdong Dongguan Bank team away beat Xinjiang Guanghui motor team 103-98, he won the CBA league finals this season with four consecutive victories in the finals. This is also the ninth time in the history of Guangdong team to win the CBA championship trophy.

NBA team strength list: Warriors continue to win the first place, the stag rockets ranked second and third

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People’s Daily Online, Beijing, March 26. In the early morning of March 26, Beijing time, NBA officially announced the latest team strength list. The defending champion Golden State Warriors won the top spot with last week’s stable performance, and Milwaukee Bucks ranked second, the Rockets followed closely and ranked third.

1. Golden State Warriors came first last week

50 wins and 23 losses

Rhythm: 101.7(10)

Attack efficiency: 114.7(1)

Defensive efficiency: 109.2(15)

Warriors have not performed well in the absence of curry this season, with only 5 wins and 7 losses. When Curry is on the court, the attack efficiency of warriors can reach 118.5, which is 13.1 points higher than when Curry is on the court. Fortunately, the next warrior schedule is relatively simple, and it is not difficult to keep the first place in the West.

2. Milwaukee Bucks came second last week

55 wins and 19 losses

Rhythm: 103.1(6)

Attack efficiency: 113.5(3)

Defensive efficiency: 104.4(1)

Bucks team has four leading advantages, and the next schedule has two back-to-back, and only two of the eight games have a winning rate of less than 50% (both are Eagles). To keep the league first, we still need to work harder. The injury situation in the team is not optimistic. Milotic, Gasol and Brogden all hang high war-free cards, and the health of the core letter brother becomes particularly critical.

3. Houston Rocket was the third place last week

47 wins and 27 losses

Rhythm: 98.2(27)

Attack efficiency: 114.2(2)

Defensive efficiency: 110.8(21)

Harden was in an amazing state, scoring 57 points and 61 points in a row, and the eighth time of the season was 50 +. Last year, Harden won the MVP season, 50 + times only 4 times. With an amazing state, he is about to face up with brother alphabet, and the pressure of the rockets ranking will also make this game crucial. Daniel House, who is worth mentioning, has a three-point hit rate of 49 percent. The Rockets need other players, especially the substitute, to stand up and share some pressure.

4. Denver Nuggets last week fourth

49 wins and 23 losses

Rhythm: 98.7(25)

Attack efficiency: 112.9(5)

Defensive efficiency: 108.2(10)

After losing the Pacers away, the Nuggets ended six consecutive victories and handed over the position of No. 1 in the West. However, this wave of away travel achieved a record of 3 wins and 1 loss, which is still quite gratifying. In the next game, the Nuggets will have as many as five away games, all facing the Western playoff team. They have already suffered six consecutive losses in the away game against the top 8 in the West.

5. The fifth Toronto Raptors last week

51 wins and 23 losses

Rhythm: 100.6(15)

Attack efficiency: 112.3(6)

Defensive efficiency: 107.3(7)

Kelle Lowry said that the body has not recovered 100%. In the past five games, Lowry missed four. He played yesterday, and for the first time in the Raptors season, all members were healthy. In the past five games, the Raptors attack efficiency was as high as 116.4 points, the rotation was extremely high player efficiency rating, and the hit rate reached 58%. But the defense in the past two weeks has been really ugly. In three games this week, the Raptors will face the team with the lowest offensive efficiency, and the defensive end needs to be awesome.

6-10: Pioneer, 76 people, Clippers, Spurs, jazz;

11-15: Thunder, Pacers, Celts, heat, basketable nets;

16-20: Piston, King, magic, Wasp, Forest Wolf;

21-25: Lakers, Wizards, Eagles, pelicans, grizzly bears;

26-30: Lone Ranger, bull, Knight, Sun, Knicks. It will determine the final situation of the two teams.

CBA comprehensive news: Liaoning three plus times narrowly wins Jilin

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Xinhua News Agency, Beijing, January 17 (reporters Guo Jingdan and Zhu Di) on the evening of 17th, the CBA league launched four competitions in the 32nd round. Among them, when the game between Jilin and Liaoning reached three plus, the Liaoning team finally beat the opponent at 153:150 and won 21 consecutive victories.

Jilin’s “northeast derby” against Liaoning at home was the focus of the night, which was a ups and downs and exciting match. At the beginning of the first quarter, Jilin team succeeded one after another on inner and outer line, making a 7:0 start. However, the Liaoning team feels cold when shooting, and the scoring efficiency is very low. At the end of the first quarter, Jilin team led at 30:12. During the second festival, the slow-hot Liaoning team gradually recovered the attack state and pursued hard all the way. However, the Jilin team maintained the offensive momentum of the first quarter. In addition, Liaoning’s previous “digging holes” was too large, and the half-time ended. The Jilin team led by 62:42.

In the second half, the Liaoning team came up with a fierce counterattack and the defense was also strengthened. With Hudson’s three-point goal, the Liaoning team chased the score to 61:72 and forced the game to stop. After returning to the court, in the two goals penalty of Liaoning team, the score difference was further reduced to single digits. At the end of the third quarter, the two sides scored 83:79, and the Jilin team was only 4 points ahead. At the end of the quarter, Han Dejun took Guo Allen’s pass and hit the basket, chasing the score to 83 square meters. The competition between the two sides became white-hot and the scores rose alternately. When there was more than one minute left in the game, the key three points hit by Jiang Weize of Jilin team helped the team chase the score to 107 square, and the score also remained at the end of the regular game time, both sides entered overtime.

In overtime, Jilin team’s three-point goals repeatedly helped the team stabilize the situation. The last few seconds of the first plus time, and the three-point goal of Jiang Weize, made the Jilin team chase to 122 square meters, and the game entered the second plus time.

In the second plus time, there was 1 minute left in the game. Jiang Weize hit the three-point goal again, and Jilin team took the lead of 137:132. With 7 seconds left, Lampe punished one of the two, and then the Liaoning team won the inner line. The two sides won 139 draws and the overtime game continued.

In the third plus time, the Liaoning team always held a weak lead. Guo Allen took two penalties. The Jilin team 150:153 fell into a passive state, with 7.8 seconds left in the game. In the end, the Jilin team failed to win the three-point goal again. The game was over. The Jilin team was 150:153 regretful and the Liaoning team won 21 consecutive victories.

The Xinjiang team, who had lost two consecutive battles in the previous two rounds, finally found the feeling of victory in the Sichuan team. With the “two pairs” performance of leading scorer Adams with 38 points and 10 assists, the Xinjiang team won the opponent with 111:91 points.

With the collective performance of 6 people scoring in the double, Jiangsu Kentier team won the Shandong team 110:90 at home, ending the opponent’s three-game winning streak and winning three-game winning streak.

In another game that night, Shanxi team defeated Nanjing Tongxi team 92:86 at home.

Sherpa guide drove the road team successfully climbing from the south slope to Mount Everest

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Xinhua News Agency, Kathmandu, May 14 (reporter Zhou Shengping) Nepal National Tourism Administration released a message on the 14th that a rope fitting-up gang composed of eight Sherpa guides successfully installed the rope to the summit of Mount Everest that afternoon.

An official named Achaya of the tourism bureau told reporters on the 14th that these people were the first to reach the top in the mountaineering season this spring.

Relevant people in Nepal mountaineering industry said that if the weather permits, other climbers can rush to the top from the morning of the 15th.

According to the information released by Nepal Tourism Bureau, there are 41 mountaineering teams climbing Mount Everest in this mountaineering season. The number of people who have obtained mountaineering permission is about 380, including 365 foreigners.

Sports investment and financing cooling, scientific and technological innovation or new kinetic energy

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Xinhua News Agency, Fuzhou, February 8th (reporters Liu Yi and Zhang Yizhi) adjusted in depth and looked around. In the past year, sports investment and financing has more or less felt the chill in other fields except for e-sports projects. Many investors said in an interview with reporters recently that looking forward to 2019, under the circumstance that the industrial development trend is not optimistic, scientific and technological innovation may be a sharp weapon to break through the encirclement, or it will become a new dynamic energy to stimulate the growth of sports investment and financing.

Sports investment and financing enters “low active period”

Looking back on the sports investment and financing situation in the past three years, we can see that no matter the number of projects or the amount of investment and financing, it reached its peak in 2016 and fell back in 2017. If government investment and e-sports investment were abandoned in 2018, social investment continues to decline.

Dune Capital has rich investment practices in the fields of ice and snow sports, sporting goods and equipment, and its co-founder Chen Yongjin analyzed that sports investment and financing in 2018 mainly focused on venues and event operations, communication Community, mass fitness and other fields, but compared with the previous two years, the investment field has shown a trend of decentralization, indicating that many investment behaviors have the nature of trial, and the industry has not formed a unified understanding of investment outlets.

The data collected by multiple investment institutions show that the number of newly established projects and the number of projects obtaining financing in 2018 both decreased significantly compared with that in 2017. Most projects are in the initial angel round or round A stage, many acquisitions are strategic integration and do not produce good returns. A small number of sound head projects, such as sports brands or e-sports with certain market influence, have concentrated a large amount of funds, and the overall investment ability and willingness of investors have decreased a lot.

“Some projects with high attention in the industry and many financing have not been further financed in 2018. From the perspective of financing frequency, compared with artificial intelligence, chips and other consumption fields, the sports industry has suffered a cold reception, and few high-growth projects have achieved two financing within one year.” Chen Yongjin said, “many relatively active investment institutions have reduced the number of shots to sports projects and entered the stage of observation and adjustment.”

Chen Yongjin believes that both investors and entrepreneurs pay more attention to how to make the project generate cash flow quickly, as well as the future profit model and the construction of the capability of maintaining good profits, some projects that have been driven by financing have encountered problems before.

“2 Bor2C”, this is a problem

Binfu Capital, which has invested in projects such as “every step” and “love fitness”, has always been optimistic about the national fitness market. Liu ran, its partner, believes that competition and performance industry is more suitable for equity investment, while projects serving sports consumers can dig out a wide range of users and are more suitable for venture capital.

Is it for partners, customers, sponsors (namely “2B”), or consumers (namely “2C”)? Many investors adhere to the logic when choosing sports venture capital projects: create high-quality experiences and products for C- end, cultivate consumption habits and tap consumption potential, but at present, B- end pays for the time being, to ensure revenue growth.

Liu ran analyzed that it is difficult for a simple 2B or 2C project to have good performance in the sports field, which puts forward higher requirements for the compound ability of the project team, we should not only have strong ability to maintain public relations and customer relations, but also have strong ability to develop and promote products.

Ye Dan, the head of Asian capital Sports investment with investment layout in health care, basketball running and other fields, said that the new services supported by the agency’s investment technology are mainly aimed at the 2B field, such as intelligent scenarios, venue Solutions, etc., use big data technology operations to tap fan value and do accurate marketing. 2C marketing methods have been very delicate, 2B business revenue is relatively stable, accounting for more and more in the overall income structure of the company, and the internal technology research and development and service upgrading of the enterprise are mostly carried out around B- end customers.

Yifan Capital Group, which once invested in “lazy bear sports”, also has a layout in the fields of sports rehabilitation and combination of sports and medicine. Zhang Huan, its vice president, said, “the service target of sports rehabilitation program is not only sports enthusiasts themselves, but also providing services to relevant institutions and companies, for example, it can provide health management testing solutions for youth sports training institutions, and guide existing customers to fitness training institutions to achieve two-way cooperation.”

Scientific and technological innovation or drive new investment momentum

According to Chen Yongjin’s judgment, the future of sports science and technology innovation is a global investment hotspot, such as multi-dimensional data collection and feedback to users, chip technology, etc. At present, existing projects are using sensors, motion capture and other technologies to apply to training, venue construction and operation and other fields. In the field of sports equipment such as treadmills, golf clubs and sports helmets, more and more new materials are applied and the technological content is getting higher and higher.

Young groups with strong consumption ability and willingness are willing to accept products with a sense of technology and fashion, have consumption demand for sports data, and are willing to share data on social platforms. Cool gym decoration and trendy bicycles have appeared in many entrepreneurial projects. Equipment iteration makes this market have investment potential. With the development of science and technology, new consumption hotspots will emerge continuously.

Liu ran believes that although some insiders are not optimistic about sports investment in 2019, the investment in leading projects and head resources will show a further trend of concentration, and the industry hopes to find a good foundation, strong partners cooperate and develop. Football, basketball and other fields with wide audience have appeared some potential projects. In minority sports such as rock climbing and rugby, venture capital projects still have a lot of competition space.

“The application of new technologies will bring new business opportunities. The industrial integration of ‘Internet + Sports’ has entered the second half. The APP platform that relies on information matching to extract commissions has already encountered the ceiling, the dilemma of projects relying on traffic monetization is that the traffic cost is getting higher and higher, and the team directly providing sports and fitness services is still online, and this part of the return is difficult to pry.” Liu Ran said.

Investors believe that new opportunities are not only on the demand side of fitness groups, but also on the supply side of national fitness-related industries. For example, in marathon competition, face recognition technology can help improve recording efficiency; New medical equipment and means intervention can detect physical signs in real time to avoid accidents such as sudden death; data mining technology can wake up the sleeping data value and make use of it twice or three times to provide runners with rich and diversified experiences, improve the communication efficiency of events, and give back to sponsors more accurately.

Ding duo, investment director of Beijing Yuanxun Investment Fund Management Center, believes that the transformation of science and technology to the sports industry has come to a new upgrade gate, such as 5G technology in the future to realize commercial use, transmission bandwidth, the computing power is greatly improved. 4K, VR, and AR technologies will find more application scenarios, which will bring revolutionary changes to the live broadcast and venue operation of the event and greatly improve the experience of watching the event. These upstream technologies will soon take root in the sports industry and bear fruit.