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|Novak Djokovic of Serbia returns the ball during the men's singles third round match against Diego Schwartzman of Argentina at French Open Tennis Tournament 2017 in Roland Garros Cheap Under Armour Boys Shoes , Paris, France on June 2, 2017. Djokovic won 3-2. (XinhuaHan Yan)
Musicians of Moscow military music school take part in street concert
Musical held in Estonia to mark Int'l Children's Day
Colorful salt lakes seen in Yuncheng city, China's Shanxi
In pics: scenery of Sayram Lake in China's Xinjiang
China's submersible Jiaolong conducts 5th dive in Mariana Trench
People enjoy soup feast to mark Duanwu Festival in SW China's Sichuan
Golden monkeys play at research center in central China's Shennongjia
Cheongsam show held at Sanshuiwan scenic spot in Taizhou City
BEIJING, Jan. 25 (Xinhua) -- Chinese Premier Li Keqiang has called for better prevention of extremely severe workplace accidents despite improvements that have been made.
According to a written instruction to the national conference on workplace safety held on Thursday Cheap Under Armour Kids Shoes , Li said the issue had huge significance to economic and social development.
Last year, the total number of accidents including the number of extremely severe and severe accidents dropped substantially.
In 2018, more should be done on accountability and oversight. More preventive efforts are needed in key industries.
A nationwide workplace safety check from July to November last year involved more on-site inspections and tougher punishments.
"Extremely severe" refers to accidents that either cause more than 30 deaths, leave more than 100 severely injured or result in more than 100 million yuan (about 15 million U.S. dollars) in direct economic losses.
NATHAN Chen became the first man in history to land five quadruple jumps in a single performance at an ISU championship event to win the Four Continents in Pyeonchang, South Korea Cheap Under Armour Running Shoes , yesterday.
The American champion, 17, set international-best scores across the board, finishing with 307.46 points and holding off a challenge by Olympic champion Yuzuru Hanyu, who was first in yesterday’s free skate.
“I tried five quads today and I landed three of the five solidly Cheap Under Armour Mens Shoes ,” Chen said. “The other two were a little shaky so that’s something I need to improve on for the worlds.”
Chen opened his routine with a quadruple lutz-triple toeloop combination at the Gangneung Ice Arena and followed that with four more quadruple jumps in a free skate that received 204.34 points. After his first jump, he added a quad flip, quad toe, quad toe-double toe and a quad salchow.
“This feels great,” said Chen. “This is the first championship event that I’ve won. I had a good lead coming out of the short program Cheap Under Armour Womens Shoes , which really benefited me in the long program.”
Hanyu, third after the short program, was second overall with 303.71 points. Shoma Uno, also of Japan, was third with 288.85.
LOS ANGELES Cheap Under Armour Shoes , March 19 (Xinhua) -- Compared to using conventional fuels, using biofuel blending jet engines can reduces particle number and mass emissions in their exhaust trails by as much as 50 to 70 percent, a new study from U.S. space agency NASA found.
Worldwide, flights produced 781 million tonnes of CO2 in 2015, according to the Air Transport Action Group (ATAG).
The cooperative international research Under Armour Boys Shoes Online , published in the journal Nature, was led by NASA and involving agencies from Germany and Canada.
The study shows that aviation-related aerosol emissions contribute to the formation of contrail cirrus clouds that can alter upper tropospheric radiation and water budgets, and therefore climate.
Data was gathered during flight tests in 2013 and 2014 near NASA's Armstrong Flight Research Center in Edwards, California, looking at the impact of alternative fuels on the performance of engines Under Armour Kids Shoes Online , emissions, and aircraft-generated contrails seen at altitudes that commercial airliners fly at.
The test series were part of the Alternative Fuel Effects on Contrails and Cruise Emissions Study (ACCESS).
NASA described the contrails as being produced by hot aircraft engine exhaust mixing with the cold air that is typical at cruise altitudes several miles above Earth's surface, and are composed primarily of water in the form of ice crystals.
"Soot emissions also are a major driver of contrail properties and their formation," Bruce Anderson, ACCESS project scientist at NASA's Langley Research Center in Hampton Under Armour Running Shoes Online , Virginia, said in a statement.
"As a result, the observed particle reductions we've measured during ACCESS should directly translate into reduced ice crystal concentrations in contrails, which in turn should help minimize their impact on Earth' s environment."
The benefits come not just from reducing carbon emitted directly into the atmosphere but by also cutting down the chance of contrails forming, which can have an even bigger impact on the Earth's atmosphere.
The results from research aircraft that sampled the exhaust of engines onboard a NASA DC-8 aircraft as they burned conventional Jet A fuel and a 50:50 (by volume) blend of Jet A fuel and a biofuel derived from Camelina oil.
"This was the first time we have quantified the amount of soot particles emitted by jet engines while burning a 50-50 blend of biofuel in flight Under Armour Mens Shoes Online ," said Rich Moore, lead author of the Nature report.
Researchers plan on continuing these studies to understand and demonstrate the potential benefits of replacing current fuels in aircraft with biofuels. It's NASA's goal to demonstrate biofuels on their proposed supersonic X-plane, according to the agency.
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