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New tracers can identify frack fluids in the environment（图）
environment dentify frack fluids
2014/12/1
Scientists have developed new geochemical tracers that can identify hydraulic fracturing flowback fluids that have been spilled or released into the environment.
New tracers can identify frack fluids in the environment（图）
environment identify frack fluids
2014/12/1
DURHAM, N.C. – Scientists have developed new geochemical tracers that can identify hydraulic fracturing flowback fluids that have been spilled or released into the environment.
The tracers, which were created by a team of U.S. and French researchers, have been field-tested at a spill site in West Virginia and downstream from an oil and gas brine wastewater treatment plant in...
日本制成世界上刻度最小的标尺
日本 世界 刻度最小 标尺
2009/4/21
日本产业技术综合研究所最近制成最小刻度为0.2纳米的钻石标尺，可以测量的距离小到不到头发丝直径的十万分之一，这也是目前世界上刻度最小的标尺。
New National Institute of Standards and Technology Reference Material for Peptide Analysis
Peptide mass spectroscopy Measurements
2007/5/28
May 24, 2007，The National Institute of Standards and Technology (NIST) has issued its first-ever reference material designed to improve the performance and reliability of experiments to measure the ma...
American Association for the Advancement of Science S&T Policy Forum Explores Privacy in an Era of Powerful Surveillance Tools（图）
Surveillance Tools
2007/5/15
14 May 2007，This is the age of watching and being watched. Cameras and other sensors have become so small they can be embedded in door knobs and other places people don’t notice, according to Daniel S...
food and drug administration Proposes to Allow the Use of Alternative Temperature-Indicating Devices for Processing Low-Acid Canned Foods
Temperature-Indicating Devices measuring
2007/3/30
March 13, 2007，The Food and Drug Administration (FDA) today issued a proposed rule which, if finalized, would benefit both consumers and the food industry by enabling manufacturers of heat-processed l...