Quantum dot lasers have excellent characteristics such as timperature stability of threshold current and ultra-high material gain.Quantum dot structures fabrica
A novel 1.3/1.55μm optical filter in GeSi/Si was designed based on multimode interference.Using the modal propagation analysis,transmission characteristics of
The optimum parameters are calculated by the large cross-section theory and mode cut-off equation.The effect on reverse bias voltages in analysed by the doping
在我们祖国辽阔的版图上,有许多“世界之最”。在北京举行的首届全国地图展览会上,一幅巨大的中国地图标示着我们国土上的22个“世界之最”。1、世界最长的城墙——万里长城2
SEMandPositronAnnihilationTechnologyInvestigationontheDefectChangewithThermalTreatmentTemperatureinGaP①②ZHANGFujia,SHAOJiafen...
利用ANSYS/LS-DYNA程序计算,研究在短时冲击载荷条件下含有裂纹的曲轴的动响应特性,通过计算分析得出,裂纹的出现有规律地影响着曲轴的振动响应,但通过振动响应的幅频特性,只
研究了鳗骨油的微波萃取条件,采取正交实验,探讨溶剂、水分以及微波辐照时间等因素对萃取效率的影响.在微波作用下,实验所选的混合溶剂的萃取能力相近;试样中水分的影响极为
The liquid crystal televison spatia light modulator(LCTVSLM)characterized is usable in optical processing applications.e.g.,optical pattern recognition,associat
在两权分离的背景下,公司股东与管理层之间的委托代理问题突出,为了缓解委托代理问题产生的不利影响,万科创造性地实施了合伙人制度,成为国内房地产行业公司治理改革的标杆。本文采用了案例研究法,引入万科作为研究对象,着重分析万科合伙人制度的动因以及实施效果,证实了万科合伙人制度设计的科学性。本文首先提出本文的研究背景及研究意义,对相关文献进行梳理和评析,从而明确本文研究的必要性。其次本文回顾了万科历次股权
The property of silicon micro-capacitive accelerometer is analyzed and discussed by establishing the model of the sensor,to lay a basis for optimization design