China Science & Technology Forum

[AndrewJin]

Hangzhou Electronic Science and Technology University.

I have never heard of this uni before, great job!

 

[Martian2]

Taiwan ITRI Flexible AMOLED Display Technology

Take a Look at Taiwan Flexible Display Technology | CTimes

 

[Martian2]

Taiwan's High-Quality Adronic Argus Endoscopes

Touring Taiwan’s Medtech Sector: High Quality Adronic Argus Endoscopes | medGadget

 

[Martian2]

Taiwan's Andes Technology challenges ARM and Imagination as chip licensor

Andes Wins CPU Role in MediaTek SoCs - Electronics360

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Taiwan's Andes Adds Peripherals IP for IoT, Wearables - Electronics360

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SemiWiki.com - A Brief History of Andes Technology

 

[Martian2]

Taiwan's ITRI partners with American MachineWorks to challenge Siemens and FANUC

The two major suppliers of machine tool software are Germany's Siemens and Japan's FANUC. China has written new laws that allow for low- or no-tariff sales of machine tools with domestic software. Since Taiwan is considered a province of China under the "One China" policy, Taiwan's ITRI has partnered with America's MachineWorks to create a joint-venture that qualifies for domestic software categorization in machine tools.
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ITRI shaping Taiwan CNC industry with MachineWorks Software

 

[cirr]

An Empire of Robot - Dongfeng Peugeot Citroen Plant in Chengdu China

| Posted: 12 Oct 2015, 15:43

It is released on Oct. 10 that Dongfeng Peugeot Citroen plant in Chengdu, China has open up the bodywork line in welding workshop, marking the mass production capability of welding bodywork line, reported by robot.ofweek.com.

It is said that rising welding technologies such as laser brazing and laser welding have been applied in Chengdu plant. The mainlines are flexible to produce 6 vehicle models at random and the speed is 60 pieces per hour. 435 robots build the 100% automated plant where the direct labors are less then 100 people, which is 1/10 of traditional automobile factory of the same size. The labor intensity is reduced dramatically and the productivity is highly enhanced.

The advanced techniques include laser welding, laser brazing, automatic arc welding, robot stud welding, medium frequency welding, punching-riveting, auto anti sling spray, high speed roller beds, and so on.Chengdu plant remains leading level of welding in China.

"Generally speaking, the wielding automation rate is about 50% in Chinese joint ventures, while the automation rate of our welding workshop reaches to 100%, which is world-leading position."Sun Jisheng, principal of the welding workshop said. It is revealed that, human station is almost disappear after the adoption of robot. The fence of workshop has been changed as advanced transparent macromolecule PC plastic plate, which features good visual effects and fireproofing function. Dongfeng Peugeot Citroen Chengdu project was founded in last October and will be put into production in 2016, which is expected to produce 360 thousand cars, including three vehicle models as Dongfeng Citroen, Dongfeng Peugeot and Dongfeng.

 

[rcrmj]

Hangzhou Electronic Science and Technology University.

this Uni is not far away from my company, mostly a tier 3 uni, IT companies in my area recruit most interns from there

 

[JSCh]

Chinese researchers discover naturally occurring uranium
By Gao Yinan (People's Daily Online) 08:32, October 12, 2015

For a long time it was thought metal uranium did not exist in nature. This latest study has proved the contrary.

The latest issue of Geology (English version) published a cover story saying that researchers from China have discovered naturally occurring uranium. The results not only provide important essentials that reveal the nature of hydrothermal uranium mineralization, but are also of great significance to study the origin of the uranium, the formation and evolution of the Earth's heat.

Uranium is both the basic element of the nuclear arms industry and the civilian use of nuclear energy. And it is widely distributed on Earth, but because of its instability, science hitherto assumed that uranium does not occur in nature in pure form but only in oxygen-containing minerals.

The research team, led by president of the Beijing Institute of Geology, Li Ziying, conducted a systematic study of the composition and the valence of uraninite in hydrothermal uranium deposits. The study found that the uranium uraninite was not only in tetravalent and hexavalent form, but also existed as uranium metal (zero valence).

Due to the strong reduction environment inside the Earth, uranium remains in a metallic state or low valence state. When the uranium fluids are transported to near the Earth’s surface, due to the continuous increase of contact with oxygen, most of the uranium combines with oxygen to form tetravalent or hexavalent compounds.

The samples for Li’s research were collected from two famous mineral deposits in China: "Guidong 330" and "Zhuguang 302" in the northeast of Guangdong province in the far south of China. The research team has analyzed the samples by X-ray photoelectron spectroscopy.

Only a portion of the uranium remains in its metallic state. Li Ziying considers that the proportion of pure uranium, tetravalent and hexavalent in the field of hydrothermal uranium ore may reflect the depth of the ore formation.

This important discovery provides important fundamentals in understanding the nature of hydrothermal uranium mineralization and the basic elements for ore control, and thus has an important practical value.

(Editor:Gao Yinan,Bianji)​

 

[JSCh]

Production of China's first unmanned subway complete
2015-10-12 21:03:12

CHANGCHUN, Oct. 12 (Xinhua) -- Production of Beijing's first fully automatic subway trains has been finished, Changchun Railway Vehicles Co., Ltd., a subsidiary of China CRRC Corporation, announced on Monday.

They will be the first fully automatic trains on the Chinese mainland and are scheduled to be put into service this year.

The trains, with a top speed of 80 kilometers an hour, can carry a maximum of 1,262 passengers.

Unmanned subway trains were first introduced in Copenhagen, Denmark and are used in cities including Paris, Barcelona and Nuremberg.


Tibet's largest hydropower station starts full operation
14:09, October 13, 2015

WUHAN, Oct. 13 -- Zam Hydropower Station, Tibet's largest, is now fully operational, according to one of the station's contractors.

All six of the station's units were incorporated into the power grid on Tuesday, said the China Gezhouba Group, a major hydropower contractor based in Wuhan, capital of Hubei Province in central China.

Located in the Gyaca County, Shannan Prefecture, the Zam Hydropower Station harnesses the rich water resources of the Yarlung Zangbo River, a major river which flows through Tibet. It produces 2.5 billion kilowatt-hours of electricity a year.

"It will alleviate the electricity shortage in central Tibet and empower the development of the electricity-strapped region. It is also an important energy base in central Tibet," the company said.

Sources say when the electricity is ample in the summer season, part of the electricity will be conveyed to the neighboring Qinghai province.

Investment of the hydropower station, about 140 kilometers from Tibetan capital Lhasa, totalled 9.6 billion yuan (about 1.5 billion U.S. dollars). China Huaneng group is it owner and operator.

The first unit began operation last November.

(Editor:Liang Jun,Bianji)
​

 

[JSCh]

18-Months Operation of Lunar-based Ultraviolet Telescope: A Highly Stable Photometric Performance
J. Wang, X. M. Meng, X. H. Han, H. B. Cai, L. Cao, J. S. Deng, Y. L. Qiu, S. Wang, J. Y. Wei, J. Y. Hu
(Submitted on 6 Oct 2015)

We here report the photometric performance of Lunar-based Ultraviolet telescope (LUT), the first robotic telescope working on the Moon, for its 18-months operation. In total, 17 IUE standards have been observed in 51 runs until June 2015, which returns a highly stable photometric performance during the past 18 months (i.e., no evolution of photometric performance with time). The magnitude zero point is determined to be $17.53\pm0.05$ mag, which is not only highly consistent with the results based on its first 6-months operation, but also independent on the spectral type of the standard from which the magnitude zero point is determined. The implications of this stable performance is discussed, and is useful for next generation lunar-based astronomical observations.​

Comments: 6 pages, 3 figures and 2 tables. To be published in Ap&SS
Subjects: Instrumentation and Methods for Astrophysics (astro-ph.IM)
Cite as: arXiv:1510.01435 [astro-ph.IM] (or arXiv:1510.01435v1 [astro-ph.IM] for this version)

 

[cirr]

China successfully hosted the new airship alternative satellite near future or suborbital space

2015-10-14

At 2:10 on October 13, China's first military and civilian space platform near the new "Dream Number" in Inner Mongolia Xilinhot flying success.

China Aviation News Data Figure

Original title: China's new airship successfully parked near space, in the airspace of alternative satellite suborbital

Technology Daily News October 14, October 13 2 8:10, China's first military and civilian space platform near the new "Dream Number" in Inner Mongolia Xilinhot flying success.

This is the world's first with continued momentum, controlled flight, re-use capability of near space airship flight, is the first to provide commercial services to businesses and individual users on the fly. The flight carrying the customer's broadband communications, data relay, high definition observation, space situational awareness and airborne imaging systems. As of press time reporter, the airship is 20 km height specified range and flight in space, the system as usual.

Reporters at the scene saw the launch, "Dream Number" is a huge silver airship, a volume of 18,000 cubic meters, rely on helium buoyancy rose into the air. It takes three six-dimensional motor propeller, rely on solar energy to power after launch, scheduled to air in 48 hours.

"Dream No." South River by the Beijing Aerospace Technology Co., Ltd. joint Beijing University of Aeronautics and Astronautics, Xilin Gol League in Inner Mongolia jointly developed.

At the launch site, the Chinese Academy of Engineering, told reporters the whole, is a region of space near the Earth's surface from 20 km to 100 km, it is a traditional joint aviation space and aerospace space. Due to the influence of the physical height and density of the air, the traditional aircraft and spacecraft can not fly in this space, and thus become very special among the highest altitude of general aviation aircraft and space-based satellite lowest orbital altitude areas.

"Dream Number" and continued use of solar power, energy autonomous and remote control off, landing, fixed and cruise flight, perform communication coverage with the relay, to be imaged with a variety of tasks and other observations.

"Spacecraft approaching the biggest difficulty lies in going up, but also to retain, due to the great temperature difference between day near space, materials and systems for controlling high demands." The whole told reporters.

"Our capsule material lighter, more pressure, flexible solar energy conversion rate of over 18%, and avionics system is the world's lightest." South River Aerospace chairman Lin Lixin told reporters .

News Background

According to the China Aviation News Network data, because of the near space potentially huge business, political and military interests have a more profound understanding of, including the United States, Russia, Britain, Germany, Japan, in developed countries have stepped up within the near space exploration intensity and frequency, have launched various types of near space steerable aerostat development.

Economically speaking, an object of near space development and utilization, is by arranging in the airspace near space steerable aerostat (NearSpaceControllableAerostat) sub-orbital satellite to replace some of the features, to complete a variety previously only by satellite to complete the work, such as crop production estimates, weather forecast, severe weather warnings, earth observation, communications relay, etc., thereby greatly reducing operational costs and improve overall efficiency.

From the national security side, near space steerable aerostat can rely on height advantage for early warning, wartime communications support or attack platforms. It is particularly important near space steerable aerostat as cooperative relaying empty days between aircraft, make up air and space integration jobs gap. It is not difficult to see, near space for the future development of mankind has a very great significance, it will also be the human exploration and use of sky next stop.

China successfully hosted the new airship alternative satellite near future or suborbital space - Sunning View

 

[cirr]

Laser technology is developing further

10/13/2015

VOLODYMYR S. KOVALENKO

Editor's note: For obvious reasons, it is not the practice of ILS to present details of the many conferences on industrial laser material processing held around the world. However, the following report of a conference held under the most difficult, headline-generating circumstances is an exception. ILS congratulates the organizers for continuing this conference series and the presenters and attendees for their dedication in making this conference happen.

There is war now in the very center of Europe—independent and sovereign Ukraine. One year ago, the Russian Army invaded the southern part of Ukraine and occupied the Crimea peninsula on the Black Sea. Here in Crimea is a small town, Katsively, where at the beginning of the new millennium a new tradition was born—to conduct the International Conference on Laser Technologies in Welding and Material Processing (LTWMP) every two years. This tradition was initiated by two Ukrainian institutions, the Paton Welding Institute of the National Academy of Sciences of Ukraine (NASU) and the Laser Technology Research Institute (LTRI) of the National Technical University of Ukraine (KPI). The first conference was organized under the chairmanship of Prof. Boris Paton and Prof. Kovalenko in 2003, where experts from 22 countries successfully presented their research results. After that, six more conferences were conducted in Katsively—the last one in 2013.

The next planned conference was organized in spite of the war in Ukraine. However, because of the occupation of Crimea, LTWMP 2015 was conducted in Odessa—the “Southern Palmira” of Ukraine—from September 14-19, 2015.

Presented at the conference were 29 reports on different aspects of laser technology development. The theme of the event was research activity in 3D additive laser processing in components manufacturing and remanufacturing, and its implementation into industry. The papers presented came from researchers in China, Germany, Poland, Spain, Russia, and Ukraine. Because of the complicated political and military situations due to the war in the area, the number of participants from Ukraine and abroad was limited, but the atmosphere of event was businesslike, very friendly, and cooperative.

A plenary paper titled “Development of 3D additive processing for product manufacturing in modern industry” was presented by Prof. Kovalenko. A cooperative paper titled “Research progress of supersonic laser deposition technology” by Prof. Jianhua Yao (director of the Research Center of Laser Processing Technology and Engineering of Zhejiang University of Technology, China) and Prof. Kovalenko was accepted by the audience with great interest.

A paper on the “Interaction of CO2 laser beam with electric arc plasma in hybrid (TIG + laser) welding” by Prof. Igor Krivtsun (NASU) demonstrated some key results of joint theoretical research of hybrid processing with colleagues Dr. U. Reisen et al. from RWTH Aachen University (Germany).

In line with the conference theme was the presentation “Advancement in joint research of laser cladding at components manufacturing” by authors J. Yao, O. Zang, and H. Hu (Research Center of Laser Processing Technology and Engineering, Zhejiang University of Technology, China), and Prof. Kovalenko, M. Anyakin, and R. Zhuk (KPI).

In collaboration with Chinese colleagues (Dr. Luo Ziyi, Guangdong General Research Institute of Non-ferrous metals), Prof. Krivtsun demonstrated the results of joint research of welding aluminum alloys, “The increase of efficiency of hybrid welding of aluminum alloys”.

Prof. V. Shelyagin with his group at NASU presented an interesting paper with Chinese colleagues Wang Chusheng, Wan Dinda, and Zhen Shukhuey (China-Russian Technological Park, Changchun and Changchun Railway Car Building Plant) on “Laser manual machine for welding of railway transport products."

Several papers were devoted to the study of combined laser irradiation with other energy sources. So, postgraduate student Dymytro Lesik and his supervisor Prof. Vitaliy Dzhemelinski (KPI), in collaboration with Dr. S. Martinesz and Dr. A. Lamikiz (University of the Basque Country, Bilbao, Spain) studied material processing with combined laser radiation and ultrasonic treatment. Their paper “Surface hardening of the steel parts with laser and ultrasonic treatment” precipitated useful discussion.

Other combined processing also fostered interesting discussion. A paper titled “Plasma + laser – new capabilities of plasma-powder surfacing" was presented jointly by Dr. A. Som (Plasma-Master Ltd., Kiev, Ukraine) and Prof. Krivtsun (NASU).

Chinese colleagues Dr. Wang Liang and Prof. Yao, with his group from Zhejiang Provincial Collaborative Innovative Center of High-end Laser Manufacturing Equipment, Hangzhou, China, presented the results of the use of magnetic field to improve the quality of laser cladding in a paper titled “Effect of electro-magnetic composite field on WC particulate reinforced metal matrix composite layers by laser melt injection.”

Another research paper from the same institutions by Prof. Yao, Dr. Bo Li, and others, titled “Microstructure and wear-resistant properties of WC/SS316L composite coatings prepared with supersonic laser deposition,” was devoted to the improvement of composite coatings with supersonic laser deposition. These results met with great interest.

The use of laser irradiation for electrode wire improvement was considered as well by NTUU researchers Prof. L. Golovko, S. Shevchenko, Prof. Krivtsun, and V. Slobodyanyuk (PJSC “PlasmaTek,” Vinnitsa, Ukraine). These researchers presented the main results of their research in a paper titled “Capabilities of application of laser treatment for increasing the quality of electrode wire.”

The processing of materials in the conference title means not only the study of laser interaction with nonorganic material, different metal alloys, powder materials, etc., but irradiation of live tissue as well. Thus, the researchers from the Filatov Institute of Eye Diseases and Tissue Therapy of the National Academy of Medical Science of Ukraine (Odessa) presented a paper on “Strength of chorioretinal joints after influence of high-frequency welding tissues and diode endolaser coagulation.” Another paper of this type was presented by Prof. I. Khudetsky with colleagues from KPI, Paton Welding Institute of NASU, and Junction Railway Hospital #1 “Darnitsa” (Kiev, Ukraine). Both presentations were also accepted with great interest.

A number of presentations disclosed the new efforts in developing different types of hybrid equipment, devices, and techniques to achieve advanced technology based on 3D laser additive processing.

In spite of all the difficulties, the conference proved that research in laser technology is far from saturation and further developments are in progress. The unanimous conclusion of all LTWMP 2015 participants was that the event was a success—and the next conference will be organized in 2017.

Laser technology is developing further - Industrial Laser Solutions

 

[Pak_Sher]

Chinese economic progress is a good example for many developing countries.

 

[JSCh]

Scientists sink teeth into history of humans in Asia
By CHENG YINGQI (China Daily) Updated: 2015-10-15 08:35

Some of the 47 human teeth discovered in a cave in Hunan province. [Photo/China Daily]​

The discovery of 47 human teeth in a cave in Hunan province by Chinese scientists has unearthed new evidence that the earliest modern humans lived in East Asia.

The teeth and a number of animal fossils were excavated from Fuyan Cave in Daoxian county.

After geological dating tests and analysis, the scientists determined that the teeth belonged to Homo sapiens, the species of modern humans that lived between 80,000 and 120,000 years ago.

The discovery of the teeth, made between 2011 and 2013, has just been reported in the online version of the scientific journal Nature.

Nick Campbell, the journal's executive editor, said, "The human teeth from China ... open up a new window on an area we had little information on before.

"These fossils ... are approximately double or more the age of any previous well dated, well preserved human fossils from southern Asia."

The first appearance of humans in the eastern Mediterranean and East Asia has remained a mystery due to lack of fossil evidence.

Human fossils found earlier in Beijing's Tianyuan Cave, Huanglong Cave in Hubei province and Zhiren Cave in the Guangxi Zhuang autonomous region narrowed this down to between 11,000 and 40,000 years ago, but none of these species evolved fully into modern humans.

Liu Wu from the Institute of Vertebrate Paleontology and Paleoanthropology at the Chinese Academy of Sciences, and lead author of the paper in Nature, said, "This is a milestone discovery because the species we found in the Fuyuan Cave is from well developed modern humans, almost identical to living humans.

"This means that we were present in southern China 30,000 to 70,000 years earlier than in the eastern Mediterranean and Europe."

Campbell, from Nature, said, "The findings really do substantially change our understanding of how modern humans established themselves in Asia.

"The findings may have some intriguing implications for the ever-evolving story of how modern humans replaced Neanderthals."

Neanderthals were closely related to modern humans and lived between 24,000 and 130,000 years ago.

They were smaller than modern humans and had low, flat elongated skulls.

Maria Martinon-Torres from University College London, a co-author of the paper, said, "Now we know that modern humans were present in southern China as early as 80,000 years ago, but there is no evidence that our species entered Europe before 45,000 years ago, when Neanderthals were already extinct."

Robin Dennell from the Department of Archaeology at the University of Exeter in the United Kingdom, said of the teeth discovery, "More revelations about our species' history can surely be expected from southern China."

 

[Raphael]

China develops new super capacitors
- Xinhua | English.news.cn

BEIJING, Oct. 10 (Xinhua) -- China's largest rolling stock manufacturer CRRC Corp. has developed a new generation of super graphene capacitors that can power electric buses with higher efficiency and for a longer period.


The train maker has produced two types of capacitors, 2.8 Volt/30,000 F and 3 Volt/12,000 F. The former can power trolley buses for up to 10 km after a one-minute charge, compared with 6 km in the previous generation. The latter one can provide enough electricity to power a tram for 6 km with only 30 seconds of charging.

The capacitors are world leaders in their arm of technology, Ruan Dianbo, deputy technical director of CRRC Zhuzhou Electric Locomotive Co., said on Saturday.

Apart from the improvements to performance, the new products are also more energy-saving and environmentally friendly. Ruan estimated China can save 584 GWh of electricity and cut 6.7 million tonnes of carbon dioxide emission a year if all the newly-added buses, around 60,000 a year, can be installed with the new capacitors.

Compared with traditional power storage devices, super capacitors boast shorter charging time, do not pollute and have no risk of explosion. They are widely used in electronics, rolling stocks, aviation and power generation.

China To Mass Produce Ebola Vaccine Developed By Chinese Military Scientists

A private Chinese firm plans to mass produce an Ebola vaccine developed by Chinese military scientists. Tianjin CanSino Biotechnology Inc. is building a $315.14 million facility in the northeastern city of Tianjin, where it will produce the vaccine, the company told China’s state news agency Xinhua Wednesday.

The facility will be completed in September 2018, but no date has been set for the production launch. The firm already produces other vaccines against pneumonia, meningitis and tuberculosis, with annual production around 200 million.

A team of biotech experts at Academy of Military Medical Sciences in China developed the Ebola vaccine, which is based on the 2014 mutant gene type and in the form of freeze-dried powder. The vaccine can remain stable for at least two weeks in temperatures of up to 37 degrees Celsius, making it suitable for the tropical climate of West Africa where the ongoing Ebola outbreak has killed more than 11,000.

A Chinese military health worker, part of a delegation sent by China to help in the fight against Ebola, had her temperature taken as she arrives at Roberts airport outside Monrovia, Liberia, Nov. 15, 2014. Reuters/James Giahyue

China approved the experimental vaccine for clinical trials in December last year. The Ministry of Health of Sierra Leone, one of the worst-affected countries, said the vaccine has proven “clinically safe,” according to Xinhua. China has provided $120 million in aid and 500 medical staff and experts to affected countries since the outbreak was declared in March 2014.

Other companies have already made strides toward developing a successful vaccine against the deadly virus. The U.S. Defense Department’s Defense Threat Reduction Agency recently awarded NewLink Genetics Corp. an $8.1 million base contract to work on development of an Ebola vaccine candidate. The biopharmaceutical company has licensed research, development and manufacturing of the vaccine candidate to Merck, an American pharmaceutical company and one of the largest in the world. Clinical trials are ongoing but the test vaccine proved 100-percent effective in a clinical study in Guinea in July, according to Reuters.

The number of new Ebola cases has dropped sharply this year. Earlier this month, the three West African countries at the epicenter of the epidemic -- Sierra Leone, Liberia and Guinea -- recorded their first week with no new cases since the outbreak started.