News on China's scientific and technological development.

"Chinese scientists have made a breakthrough in brain-spine interface (BSI) research with a new device that could help paralyzed patients walk again. The team has open-sourced related data and 3D models of spinal nerve roots and will conduct the first clinical test by year-end."


"Using the device, people who are paralyzed due to spinal cord injuries could regain control of the muscles in their lower limbs so that they can stand and walk, said the researchers from the Institute of Science and Technology for Brain-Inspired Intelligence of Fudan University."

tonyget said:

So in China，using hard disks to transfer data between cities，is alot cheaper than rent fiber

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其中在成本方面，他以某一自动驾驶企业为例解释称，该企业在全国4个地方20辆车每天产生的自动驾驶数据，先传回上海再传到贵阳训练，大概需要两条10G和一条1G的电路，一年花费一千万元左右。

用不起怎么办？改用硬盘收集数据，在两个城市间运输，考虑数据丢失、硬盘损害等情况，一年需要190万元左右

In terms of cost, he explained that the autonomous driving data generated by 20 vehicles in four places across the country every day is first transmitted back to Shanghai and then to Guiyang for training, which requires two 10G and one 1G circuits, costing about 10 million yuan a year.

What to do if you can't afford it? Use hard disks to collect data and transport it between two cities. Considering data loss, hard disk damage, etc., it costs about 1.9 million yuan a year.

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I think the article isn't telling the whole picture. If the author actually reflected what the scientist said, the scientist is a bit exagerating his own work 确定性网络（Deterministic Networking）. Honestly, even scientist may use improper arguments for attention, play up the problem, play down the challenge.

Deterministic networking is just to secure that the delay is within the minimum while data transfer has an error rate lower to a limit. In convensional network the error is corrected by re-transmission controlled by upper layer (L2 and L3 or even application layer). This re-transmission will increase delay. Essentially his study of deterministic networking is to reduce delay of error-free transmission to near real time. However the example that the article used is far from real time critical. Data transfer as slow as by hardisk on truck (hours to a day delay) is acceptable. With that kind of delay acceptable a 10G/1G network is far faster and very reliable in terms of data error rate and should be very cheap. My home network in Europe is a 1G ethernet. These 2x10G and 1x1G lines rented in China is commercial lines with far higher reliability both in terms of error rate, up/down time and speed. Costing 10 miilion RMB a year just unbelievable. Something is wrong in the article or lost in conversation.

Full story and more photos in the provided link



Staff members install photo-multiplier tubes of the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Oct. 10, 2024. China has constructed the world's largest transparent spherical detector 700 meters underground to capture elusive neutrinos, often dubbed "ghost particles," to unravel the secrets of the infinitesimally small and the infinitely vast in the universe.. (All Photos by Xinhua/Jin Liwang)

GUANGZHOU, Oct. 11 (Xinhua) -- China has constructed the world's largest transparent spherical detector 700 meters underground to capture elusive neutrinos, often dubbed "ghost particles," to unravel the secrets of the infinitesimally small and the infinitely vast in the universe.

The 12-story-tall acrylic sphere with a diameter of 35.4 meters, buried deep in a granite layer of a hill in Kaiping, Jiangmen City in south China's Guangdong Province, is the core part of the Jiangmen Underground Neutrino Observatory (JUNO), a gigantic and complex scientific facility.

The construction of the challenging project, launched by the Chinese Academy of Sciences (CAS) and the Guangdong government in 2015, has entered the final stage. Installation of the entire device is expected to be completed by the end of November, and the full operation of the facility is scheduled for August 2025, according to the Institute of High Energy Physics (IHEP) of the CAS, the project's leading institution.

As one of the world's most powerful experiments to uncover neutrino mystery, JUNO is expected to operate for at least 30 years. The observatory is designed to help scientists better understand the neutrino mass hierarchy by detecting reactor neutrinos from the nearby Yangjiang and Taishan nuclear power plants with an unprecedented 3 percent energy resolution, said Wang Yifang, chief scientist of JUNO and head of the IHEP.



Staff members install photo-multiplier tubes of the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Oct. 9, 2024.


This photo shows the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) under construction in Jiangmen, south China's Guangdong Province, Oct. 9, 2024.



Ma Xiaoyan (L) talks with a staff member at the bottom of the water tank of the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Oct. 10, 2024.



Staff members work on a stainless steel frame of the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Oct. 10, 2024.



An aerial drone photo shows ground facilities of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Oct. 10, 2024.



This stitched photo shows the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) under construction in Jiangmen, south China's Guangdong Province, Oct. 9, 2024.



Qin Zhonghua works at the construction site of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Oct. 9, 2024.

carbon fiber has apparently become so cheap and abundant is putting it in their grid system for usage in the conductors.

How much does the country control supply-chain upstream in carbon fiber production? Basf seems to be the quiet outsider. All is calm until it is coerced by forces beyond its control.

The world's first deep-water laboratory

The world's first joint deepwater laboratory for wind, waves and currents, under construction in Dalian, Liaoning province, is expected to fill a gap in China's research and development capabilities in deep-sea engineering, experts said.

The laboratory is part of the Deep-Sea Engineering Innovation Experimental Base project, which is a key initiative by Dalian University of Technology (DUT) to establish a global deep-sea engineering center.

DUT said the laboratory is poised to provide top-notch research and development conditions and high-quality technical services for critical needs such as deep-sea oil and gas resource development, nearshore renewable energy utilization and major transoceanic infrastructure construction.

Covering 16,000 square meters with a building area of 8,100 sq m, the project commenced construction last November and is scheduled for completion by the end of 2026.

Key features include a 50-meter-long, 30 m wide, and 10 m deep comprehensive deep-sea engineering test pool, an 87.6 m long, 39.5 m wide and 19 m high vertical wind tunnel and an integrated office building..




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scientific infrastructure is as important as R&D.. China has built 23 large scientific infrastructure in past 2 years

broadsword said:

How much does the country control supply-chain upstream in carbon fiber production? Basf seems to be the quiet outsider. All is calm until it is coerced by forces beyond its control.

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pretty big actually. There is a lot of chemicals that needs to be produced and most of those chemicals are not actually used for carbon fibers. I have the data on things like acrylic fiber where China has far and away the most capacity. But they get used for other purposes too.

It's kind of interesting that the only real competition vs Chinese production right now is Toray. I mean there are some smaller Japanese and Korean companies. But Toray pretty much has like a monopoly in Western countries.

China plans to build around 300 local new material pilot-scale testing platforms and develop about 20 high-level ones between 2024 and 2027 to support the development of the new material sector, according to a guideline unveiled Friday, focusing on areas of petrochemicals, steel, non-ferrous metals, inorganic nonmetals and cutting-edge materials..