论文部分内容阅读
巴斯夫加大在中国的投资
【出 处】
：
精细与专用化学品
【发表日期】
：
2002年19期
其他文献
We perform first-principles calculations for ZnO thin films with oxygen vacancy defects.The densities of states,partial atomic densities of states,charge densit
期刊
,Reduction of Efficiency Droop and Modification of Polarization Fields of InGaN-Based Green Light-Em
We demonstrate that the Mg-doping in barriers can partially screen the polarization fields of InGaN-based green light-emitting diodes.The photocurrent spectra s
期刊
We propose a new scheme of realizing spin-polarized currents in a double quantum dot system.In the presence of Rashba spin-orbit coupling interactions and diffe
期刊
土压平衡盾构是由多个复杂系统组成的隧道掘进设备,为达到最佳使用效果,各系统设计匹配性、适用性和通用性是设计时重点考虑的问题.本文通过对土压平衡盾构开挖、排渣系统工
设计了一种用于装配式建筑施工中进行PC构件垂直吊运及外立面施工的施工机械,通过对模块化组合技术、多功能组合技术、同步驱动同步制动技术、倾斜保护技术、小型构件吊装就
通过研究双向辊轮式防扭转双线矫直系统、对钢筋表面肋损伤小的牵引压紧技术、以液压马达作为执行单元的液压双向弯曲系统和液压剪切系统及与之相适应的液压动力系统,开发出
依托实际工程现场检测和有限元建模分析,在不同荷载组合作用下,得出开裂后的隧道村砌拉压强度和构件的强度安全系数.对于出现开裂的情况进行合理的仿真模拟分析,得到隧道裂缝
,Synergy Current Driven by Combined Lower Hybrid Wave and Different Polarized Electron Cyclotron Wav
The synergy current driven by combined lower hybrid wave (LHW) and electron cyclotron wave (ECW) in two different polarizations is studied.It is shown that impr
期刊
,Ultra-High Efficiency Magnetic Transport of 87Rb Atoms in a Single Chamber Bose-Einstein Condensati
期刊
We fabricate z-cut LiNbO3 nonlinear photonic crystal with two-dimensional dodecagonal superlattice by applying high voltage pulses.By using collinear quasi-phas
期刊