Picture yourself going home after work on an autonomous aeria
l vehicle – a combination of drone and small helicopter – rather than being stuck in traffic.上海夜网
That may soon become a reality as a Guangzhou-based company has announced it is
上海夜网品茶微信cooperating with the local government to build a low-altitude aviation transportation network for AAVs.
Generally used to transport goods, “the network will shuttle passengers in a safe, fast, environmentally friendly, cost-efficien
t and intelligent way,” said Hu Huazhi, founder and chairman of technology company Ehang.上海夜网
The company, in cooperation with the Guangzhou government, will open the service to the public in 2021.
上海夜网品茶微信”We will launch pilot routes above the city roads this year,” Hu said. According to Hu, th
e company has finished the development of an application to allow passengers to pre-order the flying service.
“Passengers are allowed to pick up the drones at a designated上海夜网
station downtown, with charges being almost the same as taking a taxi,” Hu said.
上海夜网品茶微信He said the company is working with the local government to build more landing stations in the city in the following years.
Ehang, based in Guangzhou, has selected the city as its pilo
t city for the establishment of a low-altitude aviation transportation network.上海夜网
As part of the pilot program, Ehang will help the local government set up a command-and-control center to ensure that m
ultiple AAVs flying simultaneously can remain safe yet efficient. It will also help the city build the basic infrastru上海夜网品茶微信
cture to support urban air mobility, including by designing safety rules and market entry thresholds.
Most of the tunnels along the Lhasa-Nyingchi section of the Sich
上海夜网品茶微信uan-Tibet Railway have been completed, railway authorities said over the weekend.
The Bukamu Tunnel, one of the longest tunnels on the railway linking Lha上海夜网
sa and Nyingchi in Southwest China’s Tibet autonomous region, was completed on Fr
iday. With its completion, 96 percent of the tunnels on the Lhasa-Nyingchi section of the railway are finished.上海夜网
The 9,240-meter Bukamu Tunnel is located in Manling county of the reg
ion’s eastern Nyingchi city. According to the China Railway 17th Bureau Group, and it is
also the 37th tunnel to be completed for this section, leaving 10 other tunnels to be finished by the end of the year.上海夜网品茶微信
“Once construction began in October 2015, it took more than 300 workers 1,234 days to complete the tunnel,” said Y
an Qingjing, an official of the Lhasa-Nyingchi Railway Headquarters, which is part of the group.上海夜网
“The oxygen level in the region is merely 50 percent that of the plain are
as, with the tunnel’s location at an average elevation of 3,000 meters above sea level, a上海夜网品茶微信
nd the oxygen level inside the tunnel is only 19 percent of that of the plain areas,” Yan said.
The group’s statistics show that more than 90 percent of the tunnel is rock burst section, and that more than 3,000 ro上海夜网
ck bursts were counted during construction of the tunnel, with an average daily burst of three.
Wang Shucheng, director of the project, said the tunnel’s depth reaches上海夜网
1,381 meters at one point, and high geostress inside causes the tunnel’s highest tem
perature to reach 42 C, much higher than the railway tunnel construction safety temperature of 28 C.上海夜网品茶微信
“The tunnel is like a steam room,” said Kang Yanjun, who works with the group. “On
ce you get inside, you begin sweating profusely. It is like doing anaerobic exercise.”上海夜网品茶微信
The technicians must exert a lot of energy every time the
y work in the tunnel, and each person needs at least 10 bottles of water, Kang said.
A carbon fiber s上海夜网女神会所ubway train of six carriages successfully completed its trial run in Qingdao, East China’s Shandong province, on Wednesday.
Dubbed the “future subway train”, it uses advanced technologies a
nd new materials, according to its developer CRRC Qingdao Sifang Co.
The carriage body, bogie frame, driver’s cabin and equipment compartment are made of ca
rbon fiber composite materials, which make the train 13 percent lighter than traditional subway t
rain, said Ding Sansan, deputy chief engineer of CRRC Qingdao Sifang Co. Silicon carbide inverter and permanent ma
gnet synchronous motor are used in the hauling system, which save energy by 15 percent, said Ding.
The windows in the train are touch panels. Passengers can watch videos and news by touching the windows.
because of multiple measures, including improved legislation, intensified law enforcement and more international coopera
tion, according to the Report on the Latest Development in IPR Protection and Business Environment in China.
Law enforcement authorities in China handled 215,000 cases involvin
g counterfeit products last year, including 77,000 cases involving patent infr
ingement, said Gan Lin, vice-minister of the State Administration for Market Regulation.
Courts across China concluded nearly 320,000 IPR cases of various type
s last year, an increase of 41.6 percent over the prev
ious year. More than 5,600 criminal suspects involved in IPR infringement were arrested last year, Jin said.
from China and overseas since it opened in 1968. Leaders from more than 70 countries and over 600 delegations from 150 nations have visited it.
During the three days it reopened to the public before taking road traffic in December, the bridge had more than 200,000 visitors.
The 4,589-meter-long structure reopened after 27 months of repairs. As China’s first home-designed road and rail truss bridge, it has been p
raised and loved by many. A truss bridge is one whose load-bearing superstructure is composed of connected elements forming triangular units.
Liu Yong, 63, a retired teacher from Nanjing, said he was in elementary school when the bridge first op
ened. Without telling his parents and teachers, he and his classmates walked more than 10 kilometers to see it.
“It was the most magnificent structure I had ever seen. When our relatives visited Nanjing, we
took them to see the bridge instead of visiting other well-known places of interest,” Liu said.
Zhou Lei, who lives in a residential community near the bridge, said that when he was an elementary school student in Ya
ncheng, Jiangsu, his father promised him that he would take him to see the bridge if he had high scores in his final exam.
ies of all levels to crack down on ophthalmic medical institutions without a legal lice
nse and strengthen inspection of ophthalmic products and medical instruments in the notice.
Legal experts called for China to protect juveniles through cybersecurity legislation a
nd redoubled efforts against school bullying after several cases aroused public outrage and concern.
Fang Yan, a lawyer from Shaanxi province, said that it’s good to see the nation adding to the protectio
n of juveniles in the past few years, “but in some new aspects, such as cyberspace, the protection is far from enough”.
At the end of 2018, China had 829 million netizens, of whom almost 20 percent w
ere under the age of 18, according to the China Internet Network Information Center.
Another report released by the center in March said that 15.6 percent of juven
iles had experienced disturbances, insults or privacy leaks online, while 30.3 percent said
they had been exposed to pornography, gambling or drugs in cyberspace.