BEIJING, Nov. 22 (Xinhua) -- The following is a summary of published science and technology news of China:

SUPERCONDUCTING CABLE

China's first high-temperature superconducting low-voltage direct current (DC) cable has been put into operation in east China's Jiangsu Province, greatly reducing electricity line losses.

The cable was built by the government of Wujiang District of Suzhou City, State Grid Suzhou Power Supply Company, and Jiangsu Etern Co., Ltd., and has a length of 180 meters.

Compared to alternating current (AC) superconducting cables, the project's grid line loss has been reduced by about 70 percent.

PASSIVE COOLING

A group of Chinese scientists found a new type of ceramic materials to realize passive cooling of buildings and save energy consumed by air conditioners, according to the recent issue of the journal Science.

The research team, led by Prof. Zhao Dongliang from the School of Energy and Environment at China's Southeast University, analyzed the optical characteristics of different materials in the solar and infrared bands based on their crystal structure.

They put forward that ceramics mainly composed of alumina and silica with certain structural designs could achieve radiative sky cooling of buildings by a high sunlight reflection rate and high emissions of infrared radiation. Moreover, such ceramics are durable, thermostable, and water-resistant.

INNOVATION RANKING

China is among the 10 most innovative countries, according to the latest global innovation ranking published by the Chinese Academy of Science and Technology for Development on Tuesday.

The academy has issued a report on the ranking, saying that it surveyed the innovative capacities of 40 countries, which together account for more than 95 percent of global R&D investment and over 85 percent of the global GDP.

China rose to the 10th place, up three slots from the 2022 rankings, and it is the only developing country to break into the top 15, according to the report. Enditem

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