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China’s cargo ship Tianzhou-4 docks with its space station

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China’s Tianzhou-4 cargo spacecraft successfully docked with the nation’s orbiting space station on Tuesday to deliver supplies to the station, which is scheduled to be completed this year.

Carried by the Long March-7 Y5 rocket, the Tianzhou-4 blasted off from the Wenchang Spacecraft Launch Center on the southern island province of Hainan at 1:56 a.m. (Beijing Time), according to the China Manned Space Agency.

Like previous cargo flights, the Tianzhou-4 carries three categories of supplies, including six-month living supplies for astronauts, spare parts for space station maintenance, and space research equipment.

Fast-docking technology

The Tianzhou-4 adopted the fast-docking technology, which took only 6.5 hours to dock with the space station.

Li Zhihui, deputy commander of the cargo spacecraft system of the No. 5 Research Institute under the China Aerospace Science and Technology Corporation has explained the process of the docking in a previous interview with China Media Group.

Li explained that after separating from the rocket, the cargo craft moves from the perigee orbit to that of the space station by means of long-range autonomous guidance and near-range autonomous control to achieve fast-docking.

“The long-range autonomous guidance is realized through an orbital change powered by jet engine, which takes Tianzhou cargo spacecraft from a 200-kilometer-high perigee orbit to a space station orbit at 393 kilometers. Then the cargo craft enters the phase of autonomous control, where it docks with the core module after passing through four anchoring points including 5 kilometers, 400 meters, 200 meters and 19 meters away from the space station. The whole process takes 6.5 hours,” he said.

Five more space flight missions will be carried out this year to complete the in-orbit construction of China’s space station.

The Shenzhou-14 spacecraft will take three astronauts to the space station in June, stationing them in the core module for six months. The Wentian lab module will dock with the Tianhe core module in July, and the Mengtian lab module will be docked with the core module in October to complete the in-orbit construction of a T-shaped space station.

Over 200 packages in more than 40 cabinets

The Tianzhou-4 cargo craft is a fully sealed cargo craft with a total weight of 13.5 tonnes. It carries 6.9 tonnes of cargo, making it the world’s most capable cargo craft in service, according to China Media Group.

The craft is 10.6 meters long and its width reaches 14.9 meters when solar panels are fully unfolded. It consists of two parts: a propelling module  2.8 meters in diameter and a cargo storage module  3.35 meters in diameter.

The spacecraft has over 200 packages in more than 40 cabinets for different units.

The craft has also brought seeds, including wheat, soybean and corn varieties, collected from universities for experiments in space.

According to Li, the research team made several adjustments on Tianzhou-4 to enable the astronauts to find the packages more easily, besides expanding storage by optimizing package designs.

Xu Xiaoping, deputy chief designer of Tianzhou-4 cargo craft, said that the planning will be more precise in future missions as the consumption of the propellant in this mission is used just as planned. “We can bring more packages next time” without carrying extra fuel, Xu said.

Tianzhou-4 is expected to remain with the space station till the completion of Shenzhou-14 mission.

Source: CGTN 

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UN adopts first global artificial intelligence resolution to ensure AI is safe

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The United Nations General Assembly unanimously adopted the first global resolution on artificial intelligence on Thursday, encouraging countries to safeguard human rights, protect personal data, and monitor AI for risks.

The nonbinding resolution, proposed by the United States and co-sponsored by China along with over 120 other nations, also advocates for the strengthening of privacy policies.

“Today, all 193 members of the United Nations General Assembly have spoken in one voice, and together, chosen to govern artificial intelligence rather than let it govern us,” U.S. Ambassador to the United Nations Linda Thomas-Greenfield said.

The resolution is the latest in a series of initiatives – few of which carry significant enforceability – by governments around the world to shape AI’s development amid fears it could disrupt democratic processes, turbocharge fraud, or lead to dramatic job losses, among other harms.

“The improper or malicious design, development, deployment and use of artificial intelligence systems … pose risks that could … undercut the protection, promotion and enjoyment of human rights and fundamental freedoms,” the measure states.

In November, the U.S., Britain and more than a dozen other countries unveiled the first detailed international agreement on how to keep artificial intelligence safe from rogue actors, pushing for companies to create AI systems that are “secure by design.”

Europe is ahead of the United States, with EU lawmakers adopting a provisional agreement this month to oversee the technology. The Biden administration has been pressing lawmakers for AI regulation, but a polarized U.S. Congress has made little headway. In the meantime, the White House sought to reduce AI risks to consumers, workers, and minorities while also bolstering national security with a new executive order in October.

The resolution aims to close the digital divide between rich developed countries and poorer developing countries to ensure that all are included in discussions on AI. It also aims to ensure that developing countries have the technology and capabilities to take advantage of AI’s benefits, including detecting diseases, predicting floods, helping farmers, and training the next generation of workers.

The resolution recognizes the rapid acceleration of AI development and use and stresses “the urgency of achieving global consensus on safe, secure and trustworthy artificial intelligence systems.”

It also acknowledges that “the governance of artificial intelligence systems is an evolving area” that requires further discussions on possible governance approaches and emphasizes that innovation and regulation are mutually reinforcing – not mutually exclusive.

Source(s): CGTN

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Beijing still tops Nature Index global science city rankings

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Beijing has consistently ranked first in the global science city rankings for eight consecutive years, as measured by the Nature Index, according to Yin Yong, deputy secretary of the Communist Party of China (CPC) Beijing Municipal Committee and mayor of Beijing.

Nature Index tracks the authorship of articles in prestigious research journals and Beijing’s ranking has shown that the city remains the top science city in the world.

On Tuesday, China’s State Council Information Office held a press conference on leveraging Beijing’s strategic role as the national capital, initiating a new chapter in high-quality development. Yin made the remarks while he answered questions from the media at the press conference.

Yin also introduced the capital’s achievement in seeking scientific and technological innovation and attracting high-level talent in science and technology.

Beijing has 92 colleges and universities, and more than 1,000 research institutes and its numbers of national laboratories and large scientific installations are ranked first in the country.

Beijing’s investment in research and development has also been among the largest in the country. Every 10,000 people in Beijing hold an average of over 262 invention patents, ranking first in China.

The capital has a large talent pool with more than 550,000 scientific researchers. In the field of artificial intelligence, for instance, Beijing’s top talent accounts for about 43 percent of the country’s total.

An average of 337 technology-based enterprises are established in Beijing every day, and the number of national high-tech enterprises and unicorn enterprises rank first among all cities in the country.

Source(s): CGTN

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Newly operated Hydro-floating solar project showcases China-Thailand cooperation in clean energy

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KHON KAEN, Thailand, March 5 (Xinhua) — A hydro-floating solar project jointly built by Chinese and Thai companies started commercial operation on Tuesday to support Thailand’s development of clean energy.

The Ubolratana Dam hydro-floating solar hybrid power plant, located in Thailand’s northeastern Khon Kaen province, integrates floating solar panels, clean hydropower, high-efficiency energy storage systems, and smart energy management systems, according to Dongfang Electric International Corporation, one of the world’s largest manufacturers of power-generating equipment that built the project with its Thai partner.

Jiraporn Sirikum, deputy governor of the Electricity Generating Authority of Thailand (EGAT), said building floating solar hybrid power plants is an important step toward the clean energy production and power stability of Thailand, praising the Chinese and the Thai companies for being able to deliver the project ahead of schedule.

“This showed a serious commitment to promoting clean energy in Thailand. We sincerely hope that the floating solar will help to promote clean energy for the community economy and local society,” Jiraporn told a commercial operation launching ceremony.

Liu Hongmei, Chinese Consul General in Khon Kaen, said she believed that the project’s commercial operation would bring greater well-being to the people of Northeast Thailand and mark a new milestone for Chinese enterprise investment in the region.

The Ubolratana Dam hydro-floating solar hybrid power plant is its second such hydro-floating solar project, said EGAT, which aims to build more such projects nationwide to promote clean energy.

Source(s): Xinhua

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