理学 >>> 数学 信息科学与系统科学 物理学 化学 天文学 地球科学总论 大气科学 地球物理学 地理学 地质学 水文学 海洋科学 生物学 科学技术史
搜索结果: 1-15 共查到理学 boron相关记录40条 . 查询时间(0.092 秒)
In another feat of bioengineering, Caltech's Frances Arnold, the Linus Pauling Professor of Chemical Engineering, Bioengineering and Biochemistry, and her team have created bacteria that can, for the ...
High-power white LEDs face the same problem that Michigan Stadium faces on game day — too many people in too small of a space. Of course, there are no people inside of an LED. But there are many elect...
Boron (B) is an essential micronutrient for plants, which when occurs in excess in the growth medium, becomes toxic to plants. Rapid inhibition of root elongation is one of the most distinct symptoms ...
Carbon’s next-door neighbor on the periodic table typically receives little attention, but when it comes to corn reproduction boron fills an important role.
The discovery of buckyballs — soccer-ball-shaped molecules of carbon — helped usher in the nanotechnology era. Now, Lai-Sheng Wang’s research group and colleagues from China have shown that boron, car...
The origin of boron in boron-rich salt lakes in the Tibetan Plateau has long been the subject of debate. The Damzung Co Salt Lake in central Tibet has high boron concentrations (B = 276–313 mg/L) and...
High natural fluoride (up to 6.1 mg/l) and boron (up to 2.1 mg/l) concentrations in groundwater are recorded in western Estonia, where a carbonaceous Silurian–Ordovician aquifer system is the main so...
We present a dataset for boron and other trace element contents obtained from samples from 13 volcanoes distributed along the Quaternary volcanic front of the Southern Volcanic Zone (SVZ) of the Chil...
Boron Release from Weathering of Illites, Serpentine, Shales,and Illitic/Palygorskitic Soils.
Abstract: In the present paper we performed the analysis of available data on structural, thermodynamic and mechanical properties of B6O. Although the compound is known for half a century and has been...
We investigate the eld emission properties of nitrogenated and boronated carbon nanotubes using time-dependent density functional theory, were the wave function propagation is performed using the Cra...
The boron concentration and isotopic composition (δ11B) of precipitation collected from December 2002 to March 2006 at three sites on the Japan Sea coast were measured. Those sites have been considera...
A simple method was found for the fabrication of silver nanosheets (AgNS) by the catalysis of gold nanoparticles (AuNP) on an amine-terminated cubic boron nitride (cBN) surface deposited on a Si(001) ...
We describe a pretreatment method before determining the total fluoride in solutions containing tetrafluoroborate ion (BF4−) with ion-selective electrodes (ISEs). BF4− was quantitatively ...
Boron can be found in high concentrations in the groundwater of the island of Cyprus, especially in the central part of the island. Boron in high concentrations is of major concern due to its toxicity...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...