News on China's scientific and technological development.

After this alternating current superconductive powerline in Shanghai, China put a direct current superconductive powerline in power grid in Jiangshu.

This 180 meter long powerline is made from domestic YBCO superconductive alloy. It is designed for max voltage of +/- 375 V and max current of 4500 A.

我国首条高温超导低压直流电缆在江苏并网投运​

20日，国内首条高温超导低压直流电缆在江苏苏州并网投运，填补了我国在超导电缆低压直流系统的应用空白，与交流超导电缆相比，电网线损降低约70%。直流超导输电技术的应用，为新型电力系统建设以及能源转型升级注入强劲的动力。

超导材料因其具有零电阻的特性，使其在电力行业中的应用成为发展趋势。目前，我国已在超导电缆应用方面有一些探索，但都是交流超导电缆示范工程。近年来，随着风电、光伏等新能源大量并网，同时以电动汽车为代表的直流负荷快速发展，直流电网成为新的研究方向。

文献数据显示，交流高温超导的损耗在3%—4%，而直流超导电缆的损耗只有1%—2%。“因此直流超导电缆与交流超导电缆相比，电网线损会进一步降低。”中国电工技术学会超导技术专业委员会委员古宏伟教授介绍。

2020年6月，苏州吴江区政府、国网苏州供电公司、江苏永鼎股份有限公司三方联合启动高温超导直流电缆示范工程建设, 在吴江同里中低压直流配电网的基础上，建设一条总长180米的高温超导直流电缆，连接起10千伏庞东直流中心站和泓晟塑胶科技（苏州）有限公司厂区直流配电房。

“这条超级电缆设计电压为±375伏，载流量为4500安，导体截面积仅为90平方毫米，相比于同电压等级下常规PVC铜芯电缆，截面积不到常规电缆的一半，但是它的输电能力却相当于20根常规电缆，同时导体损耗只有常规电缆的十分之一，在大幅提升输电能力的同时，极大降低电能传输过程中的损耗。”国网苏州供电公司设备部副主任杨晨介绍。

据悉，该项目使用的钇钡铜氧（YBCO）第二代高温超导带材为国产化材料，实现超导电缆系统核心材料的国产化。在结构上，该电缆在国内首次采用正负极同轴的方式，相当于2根电缆合二为一，是目前结构最紧凑的超导电缆。其好处是，相反的通流方向使得正负极产生的磁场相互抵消，实现完全磁场自屏蔽，从而消除对外电磁干扰，并且在故障状态下可兼具限流器作用，保护系统中其他电气设备，使电力系统更可靠。

Pretty impressive. YBCO superconductors are the leading edge right now.

sunnymaxi said:

https://twitter.com/i/web/status/1726505803782537340

China's first cat

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from somatic cell with homegrown equipment and reagents was born Sunday in E China's Qingdao, proving the country has established a self-sufficient cloning process. The 141-g male orange cat was born from a surrogate female cat after a 69-day pregnancy...

Click to expand...

China's first cat clone from somatic cells using domestic equipment and reagents was born on Sunday in Qingdao, Shandong province, proving that the country has established a self-sufficient cloning process, according to researchers.

The cat, an orange male weighing 141 grams, was birthed by a surrogate female after a 69-day pregnancy.

Researchers from Qingdao Agricultural University partnered with Qingdao PanGene Technologies Co on the project.

Zhao Minghui, an associate professor in the university's college of life sciences, said that previous animal cloning processes had relied heavily on imports from the United States and facilities provided by Japanese and European suppliers.

"The birth of the new cat proved that China has a complete industrial chain in the field of animal cloning," Zhao said.

The research, which began in 2020, faced challenges involving imported reagents during pig cloning attempts. Over time, the team successfully transitioned to domestic reagents, with additional support from a partner in Guangzhou, Guangdong province, to enhance their experimental facilities..

Huawei has unveiled new storage system called OceanStor Dorado V6 with support for 1300T in storage. All the controller, main frame and OS are self developed. Uses industry leading FlashLink storage system

SPIC news, UGTC & others delivered China's first self developed heavy gas turbine using domestic control system

So, the main news here is the control system, apparently this core tech has been monopolized by foreign suppliers before

XCMG unveils XVM160, vertical milling mining equipment. Able to mine 100m deep

considered to be the most capable mining equipment in ming area and power

A team of researchers in China has reported for the first time the live birth of a monkey that contains a high proportion of cells derived from a monkey stem cell line. This “chimeric” monkey is composed of cells that originate from two genetically distinct embryos of the same species of monkey. This has previously been demonstrated in rats and mice but, until now, has not been possible in other species, including non-human primates. The details of the research are reported November 9 in the journal Cell.


“This is a long-sought goal in the field,” says senior author Zhen Liu of the Chinese Academy of Sciences (CAS). “This research not only has implications for understanding naive pluripotency in other primates, including humans, but it also has relevant practical implications for genetic engineering and species conservation. Specifically, this work could help us to generate more precise monkey models for studying neurological diseases as well as for other biomedicine studies.”

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The world's largest 18-megawatt direct-drive offshore wind turbine rolls off the production line in Fujian..​

Dongfang Electric announced that the 18-megawatt direct-drive offshore wind turbine, developed by China Dongfang Electric Group Co., Ltd. and China Huaneng Group Co., Ltd., with completely independent intellectual property rights, was launched today in Dongfang Electric, Fuqing City, Fujian Province. The production base of Electric Wind Power (Fujian) Co., Ltd. successfully rolled off the production line. This is the direct-drive offshore wind turbine with the largest unit capacity and the largest impeller diameter in the world that has been offline so far ..

According to reports, the 18-megawatt direct-drive offshore wind turbine is a new generation of offshore wind turbines developed for offshore Class I wind speed areas. It is another important national weapon that was closely cooperated and innovatively developed by Dongfang Electric Group and China Huaneng Group’s Offshore Wind Power Innovation Alliance. , the key components of the unit, such as blades, generators, converters, and transformers, have been fully localized, promoting the coordinated development and technological progress of the entire wind power industry chain .

The blades matched with the 18-MW direct-drive offshore wind turbine are 126 meters long. They adopt the large-thickness, blunt trailing edge, and high-performance airfoil independently developed by Dongfang Electric. They apply aerodynamic-structure integrated design technology and bending-torsion coupling adaptive reduction. Loading technology, using new carbon fiber pultruded plate materials and new main beam structures, taking into account structural safety and economy.

This model adopts the industry's first domestically produced integrated dual-drive pitch system , which solves the problem of "stuck neck" in key core technologies. The dual-drive pitching system has high safety and can effectively improve the mechanical load-bearing capacity of the pitching drive of ultra-large wind turbines and extend its service life.

The iPACOM smart system independently developed by Dongfang Electric is the industry's first smart control based on edge computing technology , which can identify and protect working conditions that threaten the safety of unit operation in advance. At the same time, the control parameters are automatically optimized according to the operating environment conditions to optimize the power generation efficiency of the unit, and the health status of major components is tracked and warned in real time to extend the service life of key components.

The impeller diameter of the domestically produced 18 MW direct-drive offshore wind turbine reaches 260 meters . The unit consists of more than 30,000 parts. The hub center height of the unit is 160 meters , which is equivalent to the height of a 53-story residential building. The wind turbine sweep area is more than 53,000 square meters , which is equivalent to 7.5 standard football fields.

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the actual news is, some serious innovation involved in this project. all core components/Material and equipment are domestically produced.

sunnymaxi said:

The world's largest 18-megawatt direct-drive offshore wind turbine rolls off the production line in Fujian..​

Dongfang Electric announced that the 18-megawatt direct-drive offshore wind turbine, developed by China Dongfang Electric Group Co., Ltd. and China Huaneng Group Co., Ltd., with completely independent intellectual property rights, was launched today in Dongfang Electric, Fuqing City, Fujian Province. The production base of Electric Wind Power (Fujian) Co., Ltd. successfully rolled off the production line. This is the direct-drive offshore wind turbine with the largest unit capacity and the largest impeller diameter in the world that has been offline so far ..

According to reports, the 18-megawatt direct-drive offshore wind turbine is a new generation of offshore wind turbines developed for offshore Class I wind speed areas. It is another important national weapon that was closely cooperated and innovatively developed by Dongfang Electric Group and China Huaneng Group’s Offshore Wind Power Innovation Alliance. , the key components of the unit, such as blades, generators, converters, and transformers, have been fully localized, promoting the coordinated development and technological progress of the entire wind power industry chain .

The blades matched with the 18-MW direct-drive offshore wind turbine are 126 meters long. They adopt the large-thickness, blunt trailing edge, and high-performance airfoil independently developed by Dongfang Electric. They apply aerodynamic-structure integrated design technology and bending-torsion coupling adaptive reduction. Loading technology, using new carbon fiber pultruded plate materials and new main beam structures, taking into account structural safety and economy.

This model adopts the industry's first domestically produced integrated dual-drive pitch system , which solves the problem of "stuck neck" in key core technologies. The dual-drive pitching system has high safety and can effectively improve the mechanical load-bearing capacity of the pitching drive of ultra-large wind turbines and extend its service life.

The iPACOM smart system independently developed by Dongfang Electric is the industry's first smart control based on edge computing technology , which can identify and protect working conditions that threaten the safety of unit operation in advance. At the same time, the control parameters are automatically optimized according to the operating environment conditions to optimize the power generation efficiency of the unit, and the health status of major components is tracked and warned in real time to extend the service life of key components.

The impeller diameter of the domestically produced 18 MW direct-drive offshore wind turbine reaches 260 meters . The unit consists of more than 30,000 parts. The hub center height of the unit is 160 meters , which is equivalent to the height of a 53-story residential building. The wind turbine sweep area is more than 53,000 square meters , which is equivalent to 7.5 standard football fields.

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the actual news is, some serious innovation involved in this project. all core components/Material and equipment are domestically produced.

Click to expand...

there is a reason why only the Chinese wind turbine makers can keep pushing forward and lower cost even further through building super large offshore turbine.

Take this breakthrough very serious. China have done it again.

High end medical Devices/Equipment consider Bread and Butter of Western powers.

China's first Boron Neutron Capture Therapy Machine successfully developed​

with the support of China National Nuclear Corporation’s Longteng Innovation Project, China National Nuclear Corporation’s China Institute of Atomic Energy’s “BNCT Strong Current Proton Cyclotron Prototype Development” project Successfully passed the technical acceptance, which marks the successful development of the first domestic boron neutron capture therapy (BNCT) prototype based on high-current cyclotron, which provides a solid guarantee for the next step of BNCT commercial machine finalization and clinical technology research, and effectively promotes the next One-step transformation of BNCT equipment results.



"Boron neutron capture therapy (BNCT) is an emerging binary, targeted, cell-level tumor treatment method. Its principle of action is to inject boron drugs into the human body. This boron drug is like an engineer sent out. ', actively remove 'landmines' around cancer cells. Under the irradiation of neutrons generated by BNCT equipment, these 'landmines' can trigger a 'nuclear explosion' of only 1-2 cell scales to destroy cancer cells once they encounter neutrons. , causing minimal damage to other normal tissue cells.

Experts from the Institute of Modern Physics of the Chinese Academy of Sciences, Tsinghua University, Wuhan University, Huazhong University of Science and Technology, Sichuan University, North China Electric Power University, and the 23rd Institute of Aerospace Science, as well as leaders and project team members of the Institute of Nuclear Technology and the Institute of Reactor Engineering Technology of the Institute of Atomic Energy Attend technical acceptance meeting. The expert group listened to the technical summary report of the project team, checked the test results, and issued acceptance opinions after asking questions and inquiries. All experts unanimously stated that the prototype test results met the design index requirements, completed all the research contents stipulated in the mission statement, and some technical indicators were better than the requirements in the mission statement. The expert group recommended seizing the opportunity, increasing investment, and accelerating research on key clinical technologies.

BNCT is one of the most cutting-edge cancer targeted therapy technologies in the field of international tumor treatment in recent years, and can be used in the treatment of head and neck tumors, melanoma and other cancers. The "BNCT Strong Current Proton Cyclotron Prototype Development" project team formed by the Institute of Nuclear Technology and the Institute of Reactor Engineering Technology of the Institute of Atomic Energy has successfully made breakthroughs in high current cyclotron technology, neutron target and moderator technology, and achieved small-scale Cyclotron mA magnitude flow intensity extraction capability. In the next step, we will carry out research on key clinical technologies based on this device as soon as possible, striving to realize the early transformation of results and contribute to my country's medical and health undertakings..