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The high-specific power cathode closed air-cooled stack developed by the Dalian Institute of Chemical Physics under the Chinese Academy of Sciences has passed the SciTech Achievement Appraisal, dubbed the Hydrogen Heart for Industrial Grade Drones.
The new stack combines lightweight design, high power output and air-cooling technology, and is capable of doubling the flight endurance of industrial-grade drones.
With the rapid growth of the low-altitude economy, issues including the limited flight time of traditional lithium batteries And the heavy weight of current fuel cell systems are emerging as major constraints hindering the progress of the drone industry.
A hydrogen-powered drone equipped with this new stack recently completed a test flight in Dalian in northeast China's Liaoning province.
Demonstrating excellent performance on key indicators.
The air-cooled stack achieved a specific power as high as 1970 watts per kilogram and an area power density of 115 watts per square centimeter.
Chen Zhongwei, the project's technical lead, said this hydrogen heart has achieved the transition from laboratory development to large-scale application.
The technology has already been deployed in scenarios including forestry agriculture power, grid inspection and emergency response missions.
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Beijing has launched a pilot service that allows passengers to bring their bicycles onto the subway train, as the number of cycling enthusiasts and demand for cross-district rides grow in the city.
According to the Beijing Municipal Commission of Transport, passengers can bring single-seat, human-powered two-wheel bicycles with a wheel diameter of up to 28 inches onto subway trains at 11 pilot stations across four lines, namely line 6, line 17, the Changping line and the S1 line.
The commission said that the selection of these lines and stations followed consultations with local cycling clubs to better understand the needs of enthusiasts, while also accounting for rail transit, passenger volumes and the adaptability of station facilities.
They connect to several cycling routes in Beijing's surrounding suburbs.
The pilot service is available during all operating hours on Saturdays and Sundays, but it is closed on weekdays and public holidays.
The fare is 30 yuan per trip, covering one passenger and one bicycle, for a single journey on the pilot line on the day of travel.
Tickets can be purchased through the Yitongxing app, used for scanning QR codes to access Beijing's rail transit.
To ensure operational safety and maintain good order on board, The operating companies have established strict riding regulations.
These include a ban on all electric bicycles and other vehicles equipped with power devices entering the stations.
Additionally, passengers may not freely transfer to non-pilot lines or enter or exit through non-pilot stations within the Beijing Rail Transit Network.
It is also forbidden to ride or skate in subway stations and cars or to park bicycles haphazardly, block passenger flow corridors or obstruct emergency evacuation routes.
Shanghai will host a major exhibition on ancient civilizations of the Americas, beginning in early July.
Zhong Xiaomin, head of the Shanghai Municipal Administration of Culture and Tourism, said that the exhibition titled Ancient Civilizations of the Americas will run for 16 months at the Shanghai Museum on the People's Square.
It will be the sixth instalment in the museum's A Dialogue with the World series of art and cultural relics exhibitions.
And another landmark show on global ancient civilizations, following its popular exhibition on ancient Egypt.
According to Zong, the show is expected to be one of the largest and most comprehensive presentations of ancient American civilizations ever staged.
After two years of preparation, more than 1000 cultural relics from the Americas will be displayed, many making their debut in China, offering a systematic overview of the civilizations, including the Olmec Maya, Aztec and Inca.
The exhibition will also feature two programs providing immersive virtual reality experiences.
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China reported a 29 increase in registered nurses from 2020 to 2025, with the total surpassing 606 million by the end of last year.
According to the National Health Commission, The number of registered nurses per 1000 people rose from 334 in 2020 to 432 in 2025.
More than 80% hold qualifications at or above college level.
The commission said that over 90 of nurses in high-demand and understaffed fields, including rehabilitation, geriatric care paediatrics, intensive care and infectious disease care, have received specialised training.
Nearly 6000 medical institutions across the country provide more than 60 types of home-based nursing services in seven categories, including maternal and infant care, geriatric care, chronic disease management rehabilitation, guidance and hospice care.
Looking ahead, the Commission said it will continue to strengthen the nursing workforce, improve incentive and support measures for nurses, expand coverage of assisted care services and enhance access to elderly care services.
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