单词:network polymer
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Education Report - A Social Network Aims to Speed Up Progress in Science This is the VOA Special English Education Report. A few years ago, a university researcher was having problems with an experiment that involved medical imaging. His adviser and
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t
This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because
Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c
Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor
Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene
With millions of blogs on the internet, don't blame yourself if you can't keep up with them all. Advertisers are having the same problem. They know that there are substantial audiences who get their news, their humor, their gossip from blogs, but, re
Last week, Verizon and Google proposed a plan they say could keep the Internet open while supporting investment in high-speed Internet service. Verizon has the nations biggest wireless network while Google is the biggest Internet search engine. The p
Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o
A community radio project in Senegal's troubled Casamance region is trying to help the peace process there by encouraging dialogue in an atmosphere of ongoing tension and violence. Pasted to the wall inside Fogny FM, a radio station located just sout
Network-Sharing System Improves Internet, Cell Phone Connections During major emergencies, like the Boston Marathon bombing in 2010, cell phone and Wi-Fi networks quickly get overloaded. A group of scientists at the Stevens Institute of Technology in
'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded
By Peta Thornycroft Harare 09 June 2008 Zimbabwe's current food crisis is the worst since government records began and is expected to worsen as summer crops will feed no more than 28 percent of the population according to an alert just issued by the
BEIJING, Oct. 18 (Xinhuanet) -- Giuliana Rancic, 37-year-old E! News and Style Network host, revealed Monday that she has breast cancer after doctors discovered a tumor during her latest round of in-vitro fertilization. Rancic had planned to wait unt
Imported drugs to go on China's electronic monitoring network BEIJING, Oct. 8 (Xinhua) -- China's food and drug safety watchdog plans to put imported drugs on the national electronic monitoring network in a move to step up drug management. Overseas p
The XT mobile network crashed on Wednesday last week. It took one day to fix the problem in the North Island but three days for the far south of the country. More than 200,000 people have Telecom XT in New Zealand. Between 70,000 and 80,000 people in
SCOTT SIMON, HOST: One of the hottest tickets on Broadway this season - at least until they produce a musical about BJ Leiderman, who writes our theme music - is Network, a stage adaptation of the 1976 movie about a news anchor who cracks up on the a
Voice 1 Thank you for joining us for todays Spotlight. Im Joshua Leo. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Todays Spotlight is