04/09/2019
- Two classrooms on Nanjing campus were chosen for pilot project
- Camera automatically captures students’ faces without their cooperation
Students pass through a facial recognition turnstile at China Pharmaceutical University in Nanjing. Photo: Weibo
A university in eastern China has installed a facial recognition system at its entrance and in two classrooms to monitor the attendance and behaviour of students.
China Pharmaceutical University in Nanjing, Jiangsu province, announced on its website on Thursday that it was one of the first higher education institutions in the country to put such a system in place.
“It can effectively solve the management difficulties and low efficiencies in a traditional attendance system, and make it easier for managers to track their students,” Xu Jianzhen, director of the university’s library and information centre, told news website Thepaper.cn
In a pilot project, two classrooms were equipped with an attendance system using facial recognition software, with a camera that automatically captured the faces of students in class without their cooperation, the university said.
“Besides attendance, the system installed in the classroom can provide surveillance of the students’ learning, such as whether they are listening to the lectures, how many times they raise their heads, and whether they are playing on their phones or falling asleep,” Xu told the news website.
“The school is taking action to cut down on students skipping class, leaving classes early, paying for a substitute to attend classes for them and not listening in class,” he said.
The plan was not well received online, with some critics raising privacy concerns for staff and students.
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“What kind of talent are they trying to cultivate?” a user of the Twitter-style Weibo network asked. “I’ve never seen such a method.”
Another wrote: “If this system was being installed in Europe or America, they’d be sued and the school would have to close down.”
But Xu said the university had consulted the police and sought legal advice, and was told the system would not be considered an invasion of privacy as classrooms were public spaces.
“You are complaining about [a system] that’s meant to urge you to learn? Are you a student?” he told the news website.
A spokesman said China Pharmaceutical University was using a facial recognition system to improve class attendance. Photo: Weibo
The university would seek feedback from teaching staff before deciding whether to install facial recognition systems in all of its classrooms, according to the report.
In May last year, a school in Hangzhou, Zhejiang province, installed cameras to monitor pupils’ facial expressions and attentiveness in class as part of a “smart classroom behaviour management system” to give teachers real-time information on their students.
Elsewhere, facial recognition has been used to catch unlicensed drivers in the southern technology hub of Shenzhen, jaywalkers in Shanghai, and criminal suspects at public events across China.
Source: SCMP
Posted in America, attendance, attentiveness, automatically captures, Camera, China alert, China Pharmaceutical University, Chinese university, consulted, cooperation, criminal suspects, Europe, facial expressions, Facial recognition system, Hangzhou, invasion of privacy, jaywalkers, jiangsu province, legal advice, library and information centre, Nanjing, pilot project, Police, public events, Shanghai, Shenzhen, students’ faces, sued, Thepaper.cn, Uncategorized, university, unlicensed drivers, website, Weibo, without, zhejiang province |
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07/05/2019
- Inspired by early colour television, method can create thousands of alloys quickly
- Leader of Beijing team says a ‘revolution in material science’ is close to hand
Speedy development of alloys may accelerate programmes to explore the harsh environments of space and ocean depths. Photo: Xinhua
Chinese physicists say they have developed a method that can cut the time involved in the discovery of alloys from years to hours.
The technique has led to the creation of high performance alloys, including the world’s toughest amorphous metal, or metallic glass, for use in extremely hot environments.
The search for an alloy typically takes years, but now it can be done in less than two hours, the Chinese researchers said.
Part of their findings was published in the journal Nature this month.
Inspired by the colour gun method used to create images for television sets, the Beijing
In the conventional method, metals needed to be weighed, melted to an alloy and tested for performance. To find the right formula, researchers might need to test more than a thousand combinations and each test might take a day or two.
Professor Wang Weihua, researcher with the institute of physics at the Chinese Academy of Sciences in Beijing and lead scientist of the study, said his team’s research was inspired by early colour televisions, which used three electric devices known as guns that fired red, green and blue light onto the back of the screen to create real-world colours for the viewer.
Wang’s team’s alloy technology also involved three guns, but instead of electronic pulses they fired “bullets” made of different metals. These struck a silicon board simultaneously and fused to form alloys.
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Sensors quickly measured the alloys’ properties and picked the most appropriate for the researchers.
This approach allowed scientists to create more than 1,000 samples, test their performance and select the most promising within a couple of hours.
“We proved it works,” Wang said. “It will increase people’s confidence. There will be a revolution in material science.”
The alloy reported in the Nature paper contained iridium, nickel and tantalum. It had a distorted atomic structure similar to that of glass. Metallic glasses can be extremely strong but they usually weaken by temperatures of 400 degrees Celsius or more.
The Beijing team hopes artificial intelligence, in tandem with its technique, will start a materials revolution. Photo: Handout
The new alloy can maintain a tensile strength nearly eight times that of steel at more than 700 degrees Celsius, researchers said.
It can also remain intact for months in aqua regia, the mixture of nitric acid and hydrochloric acid that can dissolve gold and platinum.
Such properties make the alloy an ideal candidate material for manufacturing critical components for use in harsh environments such as space, ocean depths and battlefields.
“We are introducing artificial intelligence into the design and search for new amorphous metals,” Wang said. “It can further increase the speed of discoveries. In the near future, we may even be able to create material on demand.
“The potential application is almost unlimited.”
Source: SCMP
Posted in alloys, Beijing, Chinese Academy of Sciences, Chinese physicist, Chinese university, developed, nature, Professor Wang Weihua, revolutionary technique, Uncategorized |
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17/03/2019
- Class members must add more than 1,000 new contacts to make the grade
Students studying social media operations at one Chinese university must add more than 1,000 new contacts to pass the class. Photo: Shutterstock
A marketing course has become a popularity contest with a university in central China requiring students to add more than 1,000 contacts to their WeChat account to earn a pass, according to Chinese media reports.
Students enrolled in Henan University of Finance and Economics’ course on social media operations must add 1,001 new contacts to pass and 1,667 to get a distinction, Shanghai-based news site Thepaper.cn reported on Sunday.
The course, run by the university’s school of communications, teaches students about marketing and promotion on social media, particularly WeChat, China’s biggest social media network with more than 1 billion users.
The app, operated by Chinese internet giant Tencent, is a conduit for games, shopping, news, payments and personal posts.
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Many students complained about the requirement online, saying the number was too high and there was no way they could meet so many new people and add them to their WeChat accounts.
Responding to the complaints, the university said the requirement had an academic purpose and staff discussed the issue last week with students who had signed up for the course.
Source: SCMP
Posted in China alert, Chinese university, social media course, students, Uncategorized, WeChat |
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