拉格衍射成像

By Melinda Smith Washington 30 March 2007 Since the mid-20th century the World Health Organization reports there has been an increase in the rate of breast cancer among women in developed countries. For decades, doctors have urged their patients to d

发表于:2018-12-16 / 阅读(124) / 评论(0) 分类 2007年VOA标准英语(三月)

[00:01.17] 5.Did The Earth Move For You? [00:04.65]Eleven-year-old Angela was stricken with a debilitating disease involving her nervous system. [00:10.54]She was unable to walk and her movement was restricted in other ways as well. [00:15.98]The doc

发表于:2018-12-26 / 阅读(29) / 评论(0) 分类 温馨夜读II

After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

发表于:2019-01-08 / 阅读(58) / 评论(0) 分类 Scientific American(六)月

By Chris Mitchell Washington, DC 06 April 2006 watch Medical Imaging report Medical experts have defended medical imaging as a way to improve health care, during a briefing at the U.S. Capitol buildin

发表于:2019-02-03 / 阅读(102) / 评论(0) 分类 2006年VOA标准英语(四月)

BEIJING, May 24 (Xinhuanet) -- CT scan, a widely used heart-imaging test, is likely to result in the over treatment for patients with heart disease, according to a study published online by the Archives of Internal Medicine on Monday. CT, which produ

发表于:2019-02-06 / 阅读(39) / 评论(0) 分类 英语新闻

Afghanistan has become the first country to map its natural mineral resources using an advanced remote sensing technique known as hyperspectral imaging. The mapping, a collaborative effort between the U.S. Geological Survey and the Afghan Geological

发表于:2019-02-18 / 阅读(121) / 评论(0) 分类 英语新闻