查询词典 tunneling effect

The effect of cholesterol on the phospholipid bilayer structure and polymorphism of liposomes have been investigated by method of the small angle X-ray diffraction and by the technique of scanning tunneling microscope.

用小角X射线散射和扫描隧道显微镜技术分别研究了模拟生物膜脂质体的结构以及胆固醇对生物膜双层结构的影响。

Parikh and Wilczek further refined and extended the thought of Keski-Vakkuri and Kraus, the radiation was explained as a tunneling process crossing the barrier of horizon, and in literatures the method is called Parikh-Wilczek tunneling method. In our paper, we further studied the effect of Hawking radiation of the apparent horizon of the dynamical spacetime, the FRW universe, and the thermodynamics of the apparent horizon of the dynamical black hole modes, the Vaidya black hole and the McVittie black hole.

更为重要的是，近年来联系于视界热力学一些新的性质被发现：Einstein方程在视界上可以作为热力学第一定律的形式出现；在Friedmann-Robertson-Walker宇宙表观视界上，时空动力学方程(Friedmann方程)也可以写成一个所谓的统一热力学第一定律的形式；局域定义的FRW宇宙表观视界，也存在着在Kodama矢量观测者看来的Hawking辐射效应。

During the PL measurement excited by 405nm diode laser, the decreasing PL intensities of the biased LED sample were observed by increasing the measurement temperature that was caused by the thermal and tunneling effect to have the lower internal quantum efficiency.

在光激发萤光系统上，以405nm波长的雷射作为激发光源，在外加偏压测试环境下可以发现室温(300K)强度因载子热效应与穿隧效应而快速递减，导致内部量子效率较实际值低。

It is found that the confiner the electric field, the sharper the peak width. The different confined states correspond to the different oscillation modes, which can be well described by the resonant tunneling effect used in the semiconductor quantum well structures.

B：非完全约束光子量子阱结构的束缚态出现在阱光子晶体的禁带区域，并且不同束缚态对应不同的光子量子阱能级，不同的量子阱能级有不同程度的光场约束，光场约束在阱光子晶体中的越多，对应的透射极大的半峰宽越小。

Similarly, if no tunneling effect between three condensates is assumed at the beginning and one switches off the laser potential traps, the atoms would expand ballistically due to the sudden disappearance of the barrier.

类似地，如果不考虑凝聚物之间的弱连接，而是把激光势阱撤去，也可以研究三个独立凝聚在空间的扩张与相干。

When Scanning Tunneling Microscopy is applied to electrochemical studies, the effect of Faradaic current on tunneling current can not be neglected.

作为电化学现场研究的STM与大气、真空中的STM系统的主要区别在于电解质溶液和电极电位的引入。

The organic molecules with it-conjugated structure are ideal structural units for molecular wires. The asymmetric electronic structure of the molecular junctions is the basic reason for molecular rectification. Rotaxanes and catenanes are ideal structural units for molecular switches. The operation principle of molecular field effect transistors is quantum tunneling, the metal/insulator/mental tunneling is mainly.

具有π-共轭结构的有机分子体系是构造分子导线的理想单元；分子结的电子结构不对称性是分子具有整流特性的根本原因；轮烷和索烃是构造分子开关的理想单元之一；分子场效应晶体管的工作原理是量子隧穿，主要是金属－绝缘体－金属间的隧穿效应。

In this paper, we study the quantum tunneling effect of a cold atomic beam propagating through a laser beam which is blue detuned.

这种量子隧穿效应在微观粒子中得到了广泛的理论[1—17]和实验研究[18—24]，并在一些实际的电子器件中得到了应用[25，26]。

The Quamtum Mechanical Bound State calculation has been carriedout to study the selective adsorption of 〓 molecule on Ag(110) sur-face, by which the resonance states and the corresponding eigenvaluesare obtained. There is a good agreement between the quantal and theclassical results in the range of incident energies above thepotential barrier where tunneling effect is not important.

用准经典轨迹方法对〓(110)系统进行了研究，分析了氧分子在Ag(110)表面上的散射，离解和选择性吸附等过程，并对这些过程中分子内部能量的重新分布进行了分析，这些分析揭示了分子—表面相互作用的微观机理。

On the basis of biology, it deduces the relation between the high electrostatic field and the transmembrane voltage by the formula of nernst and the quantum tunneling effect.

采用平面类脂双层模型分析外加高压静电场对植物细胞跨膜电位的影响，并探讨其微观机理。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。