Latest news with #TongjiUniversity
India Today
2 days ago
- Automotive
- India Today
China's maglev train hits 623 km/h, breaking global speed record. Key details
China's maglev train hits 623 km/h, breaking global speed record. Key details (Photo: X/@ChinaRailways) India Today Information Desk China's maglev train hit 623 km/h in a new test Test done on 2m model in low-pressure tube in Shanghai Design cuts air resistance for higher speeds In a new test run, China's magnetic levitation (maglev) train clocked an impressive speed of 623 km/h, making it the fastest land vehicle of its kind. The high-speed test took place in Tongji University's dedicated low-vacuum tube testing line in Shanghai. The breakthrough puts China even further ahead in the race for next-generation transport, while the US continues to struggle with getting its own projects off the ground. The test was carried out using a scaled-down model that was just 2 metres long and weighed 165 kilograms. What makes this even more interesting is that the track was only 210 metres long and placed inside a tube with pressure 98 per cent lower than normal air. This design sharply reduces air resistance and allows maglev trains to go much faster. This successful run is being seen as a step closer to future vacuum maglev systems that might someday reach speeds of up to 1,000 km/h, faster than commercial airplanes. The project is backed by China's top rail research body, CRRC, and forms part of the country's broader aim to dominate ultra-high-speed rail transport. China's approach heavily centralised planning, state support, and non-stop R&D is allowing it to zoom past countries like the US that rely on fragmented systems and private funding. Whether the Chinese maglev can eventually be commercialised and scaled up remains to be seen. But for now, the country is racing ahead, both literally and figuratively. In a new test run, China's magnetic levitation (maglev) train clocked an impressive speed of 623 km/h, making it the fastest land vehicle of its kind. The high-speed test took place in Tongji University's dedicated low-vacuum tube testing line in Shanghai. The breakthrough puts China even further ahead in the race for next-generation transport, while the US continues to struggle with getting its own projects off the ground. The test was carried out using a scaled-down model that was just 2 metres long and weighed 165 kilograms. What makes this even more interesting is that the track was only 210 metres long and placed inside a tube with pressure 98 per cent lower than normal air. This design sharply reduces air resistance and allows maglev trains to go much faster. This successful run is being seen as a step closer to future vacuum maglev systems that might someday reach speeds of up to 1,000 km/h, faster than commercial airplanes. The project is backed by China's top rail research body, CRRC, and forms part of the country's broader aim to dominate ultra-high-speed rail transport. China's approach heavily centralised planning, state support, and non-stop R&D is allowing it to zoom past countries like the US that rely on fragmented systems and private funding. Whether the Chinese maglev can eventually be commercialised and scaled up remains to be seen. But for now, the country is racing ahead, both literally and figuratively. Join our WhatsApp Channel
Time of India
7 days ago
- Science
- Time of India
Antarctica Ice Mass: Study finds unusual ice mass gain in Antarctica amid global climate concerns; here's more
As the world progresses, so does the climate crisis, and often in the most unexpected ways. Scientists have reported a surprising shift in the southernmost region of the planet. Antarctica has gained ice mass for the first time in decades! Just imagine the shift! What is it about? In a recent study published in , from 2021 to 2023, the Antarctic Ice Sheet underwent an accelerated increase in mass. Tired of too many ads? go ad free now Researchers at Tongji University in Shanghai, led by Dr. Wang and Prof. Shen, say this was due to particularly dense snowfall during the period. The scientists used data from NASA's GRACE and GRACE-FO satellite missions, which track the Earth's gravitational field to create maps of mass change. Antarctica is estimated to have gained 108 billion tons of ice annually for the past two years, a dramatic turnaround from the decades of long-term losses in the previous decades. From 2002 to 2010, Antarctica lost around 74 billion tons annually. The rate accelerated to one of nearly 142 billion tons annually from 2011 to 2020, primarily due to melting in the West Antarctic and East Antarctic coastlines. Researchers had long forecast the melting ice on the continent would leave a quantifiable impact on raising global sea levels. The recent spike is not necessarily an indication of lasting recovery, however. Experts warn that it could be a short-term shift and not a reversal of the general warming trend. While the increase in ice mass is good news, it's likely due to transient weather and not a sign that climate change is reversing," a climate scientist unrelated to the study added. "Antarctic ice remains very sensitive to long-term warming, especially at the margins." In the meantime, the Arctic remains beset with portentous indicators of disrepair. Tired of too many ads? go ad free now To our surprise, Arctic sea ice cover hit a record low winter level in March 2025 at 14.33 million square kilometers, NASA and the National Snow and Ice Data Center reported. This surpasses the latest low in 2017, once again showing the spectacular changes in the north polar region. The diverging polar trends remind us that climate change is complex and can occur differently in various regions. Scientists refer to the necessity of ongoing monitoring and investigation of changing dynamics of Earth's cryosphere. The researchers attribute this rebound to unusual increases in precipitation, which led to an accumulation of snow and ice. In May 2025, experts warned that current forecasts may underestimate the impact of subglacial water, which develops when the ice sheet melts at its base owing to glacier movement or geothermal heat from bedrock. They anticipated that subglacial water will contribute 2.2 meters (7.2 feet) to sea-level rise by 2300.
Malaysian Reserve
08-07-2025
- Business
- Malaysian Reserve
TrinaTracker Receives the first Wind Tunnel Test Technical Review Report in China by DNV
SHANGHAI, July 8, 2025 /PRNewswire/ — TrinaTracker, the smart solar tracking system provider under Trinasolar (SHA: 688599), announced that it has received a third party technical review of the wind tunnel test program for its Vanguard 1P tracker, with a report issued by the independent energy expert and assurance provider, DNV. The test program, conducted by Tongji University, involved a new rigid-model pressure measurement test and advanced dynamic analysis research for its Vanguard 1P tracker, with DNV providing third-party technical review services. The study was conducted in TJ-3 wind tunnel of Tongji University, of which the scale ranks second among similar wind tunnels in the world. It utilized a large-scale multi-row array model (measuring 5m × 2.2m) to perform comprehensive and precise measurements of wind loads on the tracker structure. The study also investigated the effects of various parameters to ensure the reliability of the Vanguard 1P tracker across different application scenarios. DNV conducted a rigorous review of the research findings. This advanced wind load evaluation further enhances the wind resistance performance of the Vanguard 1P tracker. Xie Tao, General Manager, Energy Systems for Mainland China, Hong Kong and Macau at DNV , said, 'As a critical component of PV systems, the long-term reliability of trackers directly impacts investor returns. This review examines the innovative wind tunnel testing method proposed by Tongji University and TrinaTracker—a bold step forward in testing technologies amid the energy transition.' TrinaTracker maintains dedicated wind engineering research capabilities and collaborates with global leaders like Tongji University, RWDI, and CPP to ensure its products remain at the industry forefront. The partnership with DNV exemplifies a new model to address global customer needs. Moving forward, TrinaTracker will continue investing in technical innovation to deliver cutting-edge tracker technologies and products. Photo – View original content:
Korea Herald
08-07-2025
- Business
- Korea Herald
TrinaTracker Receives the first Wind Tunnel Test Technical Review Report in China by DNV
SHANGHAI, July 8, 2025 /PRNewswire/ -- TrinaTracker, the smart solar tracking system provider under Trinasolar (SHA: 688599), announced that it has received a third party technical review of the wind tunnel test program for its Vanguard 1P tracker, with a report issued by the independent energy expert and assurance provider, DNV. The test program, conducted by Tongji University, involved a new rigid-model pressure measurement test and advanced dynamic analysis research for its Vanguard 1P tracker, with DNV providing third-party technical review services. The study was conducted in TJ-3 wind tunnel of Tongji University, of which the scale ranks second among similar wind tunnels in the world. It utilized a large-scale multi-row array model (measuring 5m × 2.2m) to perform comprehensive and precise measurements of wind loads on the tracker structure. The study also investigated the effects of various parameters to ensure the reliability of the Vanguard 1P tracker across different application scenarios. DNV conducted a rigorous review of the research findings. This advanced wind load evaluation further enhances the wind resistance performance of the Vanguard 1P tracker. Xie Tao, General Manager, Energy Systems for Mainland China, Hong Kong and Macau at DNV , said, " As a critical component of PV systems, the long-term reliability of trackers directly impacts investor returns. This review examines the innovative wind tunnel testing method proposed by Tongji University and TrinaTracker—a bold step forward in testing technologies amid the energy transition." TrinaTracker maintains dedicated wind engineering research capabilities and collaborates with global leaders like Tongji University, RWDI, and CPP to ensure its products remain at the industry forefront. The partnership with DNV exemplifies a new model to address global customer needs. Moving forward, TrinaTracker will continue investing in technical innovation to deliver cutting-edge tracker technologies and products.
Yahoo
08-07-2025
- Business
- Yahoo
TrinaTracker Receives the first Wind Tunnel Test Technical Review Report in China by DNV
SHANGHAI, July 7, 2025 /PRNewswire/ -- TrinaTracker, the smart solar tracking system provider under Trinasolar (SHA: 688599), announced that it has received a third party technical review of the wind tunnel test program for its Vanguard 1P tracker, with a report issued by the independent energy expert and assurance provider, DNV. The test program, conducted by Tongji University, involved a new rigid-model pressure measurement test and advanced dynamic analysis research for its Vanguard 1P tracker, with DNV providing third-party technical review services. The study was conducted in TJ-3 wind tunnel of Tongji University, of which the scale ranks second among similar wind tunnels in the world. It utilized a large-scale multi-row array model (measuring 5m × 2.2m) to perform comprehensive and precise measurements of wind loads on the tracker structure. The study also investigated the effects of various parameters to ensure the reliability of the Vanguard 1P tracker across different application scenarios. DNV conducted a rigorous review of the research findings. This advanced wind load evaluation further enhances the wind resistance performance of the Vanguard 1P tracker. Xie Tao, General Manager, Energy Systems for Mainland China, Hong Kong and Macau at DNV , said, "As a critical component of PV systems, the long-term reliability of trackers directly impacts investor returns. This review examines the innovative wind tunnel testing method proposed by Tongji University and TrinaTracker—a bold step forward in testing technologies amid the energy transition." TrinaTracker maintains dedicated wind engineering research capabilities and collaborates with global leaders like Tongji University, RWDI, and CPP to ensure its products remain at the industry forefront. The partnership with DNV exemplifies a new model to address global customer needs. Moving forward, TrinaTracker will continue investing in technical innovation to deliver cutting-edge tracker technologies and products. View original content to download multimedia: SOURCE TrinaTracker Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
