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- And the approximated linear dependence of the field enhancement factor on the aspect ratio of the carbon nanotube field emitter was derived. 运用模拟电荷和镜像电荷导出单根纳米碳管尖端场增强因子关于长径比的简单线性公式,其结果明显优于悬浮球模型。
- By setting up theoretical model, field enhancement factor and its related factors were firstly theoretically explored, which is very important to evaluate field emission of CNT arrays. 通过建立理论模型,本文第一次系统地研究了电场增强因子与相关影响因素的关系。 电场增强因子是评价碳管阵列场发射性能的重要参数,故该研究将有助于发现改善碳管阵列场发射性能的有效手段。
- Electric field enhancement factor 电场增强因子
- Study on the electric field enhancement factor and the optimum densities of carbon nanotube arrays 对碳纳米管阵列的场发射电场增强因子以及最佳阵列密度的研究
- Prediction of Field Enhancement Factor and Onset Voltages of Single Carbon Nanotubes by Wavelet Neural Networks 基于小波神经网络预测单个碳纳米管的场增强因子和开启电压
- field enhancement factor 场增强因子
- The results show that the best field emission characteristic is measured with an enhancement factor of around 2118, and a turn-on field intensity of 6.3 V/m were obtained. 这表示在较低长度之下,增加奈米线的长度有助于提升其场发射特性,但是到了一定长度之后,此时继续的增加奈米线的长度将使得电场屏障效应增加,导致场发射特性随著长度的增加而衰减。
- From the measurements obtained were derived the coefficient of electronic heat capacity for normal state, the Debye temperature, the electron-phonon mass enhancement factor and the thermodyna-mic critical field. 从比热数据导出了正常态电子比热系数、德拜温度、电-声子质量增强因子;以及热力学临界场等参量.
- It involves the same parameter as that involved in the enhancement factor for coagulation of two equally charged particles. 它包含了与两个相等带电粒子凝聚增强因子中所包含的同样参数。
- The field enhancement effect should conclude that the metal probe has an important application in nanolithography. 可见,金属探针的这种局域场增强效应在纳米光刻技术中具有重要的应用前景。
- Overall enhancement factor of complex solution was not summation of that of MDEA and AMP. MDEA和AMP的增强因子对总增强因子不具有加和性;
- For the application of TIR grating to the high-energy laser system, reduction of the internal field enhancement can avoid the danger of damage effectively. 在应用于高功率激光时,降低光栅内部的电场增强可以有效降低损伤风险。
- The film model is employed to describe the heat and mass transfer.The interfacial temperature rise and enhancement factor are determined nonlinearly. 本文利用薄膜理论模式描述系统中之热质传问题,并求解非线性方程式而求得界面温度及增因子方。
- In Fig.6 enhancement factor R is plotted against Marangoni number Ma ,The method of calculation of Ma is explained in the Appendix. 在似乎是难以解释为什么喷发发生在液液系统,并没有发现在目前的气液系统,这个问题应该研究更准确。
- The mass transfer coefficient and mass transfer enhancement factor can be calculated by measuring the variation of gas (propane and hydrogen) pressure versus time. 通过测定气相(丙烷和氢气)压力随时间的变化,计算出液侧传质系数和传质增强因子。
- The result showed that increase of solid concentration led to the increase of gas-liquid mass transfer, the maximum enhancement factor occurred at solid concentration 4%. 结果表明,吸附剂微粒的加入使气液传质得到增强。
- Along with the automation level of oil field enhancement daily, now the massive measuring instruments and the control system already or soon no longer adapted the production request. 随着油田自动化水平的日益提高,现在正在大量使用仪器仪表和控制系统已经或者即将不再适应生产的要求。
- The enhancement factor strongly depends on the illumination spot size, taper angle of the probe, and the metal film thickness.The tolerance of the alignment angle is investigated. 研究发现电场增强跟入射光斑大小,探针的锥形角,以及金属膜厚度密切相关。
- The electric field enhancement in defect laser was determined by the structural parameters of one-dimensional photonic crystal such as period, the position and width of bandgap and defect mode. 缺陷层电场强度与一维光子晶体的结构有关,如周期,光子带隙的位置与宽度及缺陷模式等因素都会影响缺陷层电场强度。
- The experimental results of SEM confirm that introduction of vibration force field enhances the distributive and dispersive mixing of LDPE/CaCO3. 扫描电镜(SEM)试验结果证明了振动力场的引入将提高挤出样品低密度聚乙烯(LDPE)/CaCO3的分布与分散混合效果。