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搜索结果: 1-15 共查到boron相关记录100条 . 查询时间(0.062 秒)
Engineers at MIT and the University of Tokyo have produced centimeter-scale structures, large enough for the eye to see, that are packed with hundreds of billions of hollow aligned fibers, or nanotube...
Ultrathin materials made of a single layer of atoms have riveted scientists’ attention since the isolation of the first such material — graphene — about 17 years ago. Among other advances since then, ...
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...
We have created a new state of BN (named Q-BN) through rapid melting and super undercooling and quenching by using nanosecond laser pulses. Phase pure c-BN is formed either by direct quenching of supe...
We report a direct conversion of hexagonal boron nitride (h-BN) into pure cubic boron nitride (c-BN) by nanosecond laser melting at ambient temperatures and atmospheric pressure in air. According to t...
Ultrasensitive gas sensors based on the infusion of boron atoms into graphene -- a tightly bound matrix of carbon atoms -- may soon be possible, according to an international team of researchers from ...
A study of the effects of boron (10 mg/kg as H3 BO3 ) and nitrogen (0-0.15-0.30-0.45-0.60 g/kg) fertilization in combination with soil water capacity (40% and 70%) on lettuce growth and nutritional ...
Simultaneous salinity and boron (B) excess often occur due to irrigation with water containing high levels of salts, including B. The effects of excess of NaCl and B in the nutrient solution on some a...
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...
Graphene, a sheet of carbon one atom thick, may soon have a new nanomaterial partner. In the lab and on supercomputers, chemists have determined that a unique arrangement of 36 boron atoms in a flat d...
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...

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