搜索结果: 1-15 共查到“国际动态 理学 X-ray”相关记录18条 . 查询时间(0.031 秒)
In food products, the natural blues tend to be moody.
Scientists develop numerical capability of laser-driven X-ray imaging（图）
Scientists numerical capability laser-driven X-ray imaging
2020/7/3
A team of scientists led by University of Nevada Reno physicist Hiroshi Sawada has demonstrated that numerical modeling accurately reproduces X-ray images using laser-produced X-rays.The ima...
Mysterious cosmic explosion surprises astronomers studying the distant x-ray universe
cosmic explosion astronomers distant x-ray universe
2017/4/27
A mysterious flash of X-rays has been discovered by NASA’s Chandra X-ray Observatory in the deepest X-ray image ever obtained. This source likely comes from some sort of destructive event, but it may ...
Dormant Black Hole Eats Star,Becomes X-Ray Beacon
Dormant Black Hole Eats Star X-Ray Beacon
2016/7/4
Roughly 90 percent of the biggest black holes in the known universe are dormant, meaning that they are not actively devouring matter and, consequently, not giving off any light or other radiation. But...
HAWC Gamma-Ray Observatory Reveals New Look at the Very-high-energy Sky
HAWC Gamma-Ray Observatory Very-high-energy Sky
2016/4/25
The United States and Mexico constructed the High Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory to observe some of the most energetic phenomena in the known universe—the aftermath wh...
Rotational X-ray tracking uncovers hidden motion at the nanoscale
Rotational X-ray tracking hidden motion nanoscale
2014/6/12
Over the past two decades or so, there has been increasing interest and development in measuring slow dynamics in disordered systems at the nanoscale, brought about in part from a demand for advanceme...
A compact source of high-quality X-ray pulses has been unveiled by an international team of researchers. The group claims that the source – which is contained in a vacuum chamber about 1 m3 – produces...
X-ray diffraction microscopy peers into tiny cells（图）
X-ray diffraction microscopy tiny cells
2009/11/24
Two independent groups of physicists have found a new way to get high-definition glimpses of the innards of living cells. The technique uses X-ray diffraction microscopy on cells frozen below –170 °C,...
X-ray measurement of real-time variations at an organic interface（图）
X-ray measurement real-time variations organic interface
2009/7/20
One of the unavoidable realities of our era is that fossil fuels are not infinite. Someday, and sooner rather than later, available stores will be exhausted. To overcome the supply and other limitatio...
May 2, 2007，The May 2 issue of the journal Nature reveals how collaboration between scientists in the United States and the United Kingdom has led to a major breakthrough in the understanding of antif...
01 May 2007，Manta rays are hard to miss —big, black and stretching up to seven metres wide, but scientists are still in the dark about the world’s largest ray.
Iowa State astrophysicists provide the eyes for new gamma ray telescope system（图）
gamma ray telescope system
2007/4/20
19-Apr-2007，AMES, Iowa -- There’s a "First Light Fiesta" in the works at Mt. Hopkins near Amado, Ariz. And Iowa State University astrophysicists will be among those enjoying the celebration of a new t...
10 April 2007,Blue spotted stingray in Moreton Bay. Photo: Susan Theiss UQ researchers have shown that stingrays, once thought to be colour-blind, may be capable of seeing in colour.They have shown th...
8 March 2007—Several times a week, astronomers detect the violent death cry of a massive star -- an extraordinarily energetic release of gamma rays that takes place in just a matter of seconds to minu...
European astronomers create largest-ever catalogue of gamma-ray sources in the universe（图）
gamma-ray
2007/3/15
23 February 2007，Using data from the European Space Agency's latest orbiting gamma-ray observatory, Integral, a European team of astronomers led by Dr Antony Bird of the University of Southampton (UK)...