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The differences of electric field distribution produced by the variation of parameters in multiple structure asymmetric electrodes system for high power gas lasers are studied.

高功率气体激光器的非对称复杂电极系统中，电极参数的变化以及预电离结构的引入将会使所设计的均匀电场发生具体的改变。

The characteristics of pentacene/perylene derivatives based organic solar cells are investigated in this thesis Donor and acceptor layers are pentacene and N N'-dioctyl-3 4 9 10-perylenetetracarboxylic diimide (PTCDI-2~13C) respectively Twelve organic solar cells with pentacene/PTCDI-2~13C heterojunctions were fabricated to study the influence of various alkylic perylene derivatives on the power conversion efficiency Under the sunlight simulator with AM1 5G filter and 100 mW/cm2 the solar cell of pentacene/PTCDI-7C heterojunction with cathode of Ag/Al bilayer has the best performance among the devices with pentacene/PTCDI-2~13C heterojunctions In PL spectrum analyses the pentacene/PTCDI-7C film had lower recombination rate than the other pentacene/PTCDI-2~13C films; therefore more excitons could reach the P/N junction and enhance short-circuit current Furthermore the PTCDI-7C film grown on the surface of penatcene was more matched than other PTCDI films analyzed by the PL peak shifts of 10 nm and 45 nm thick PTCDI-2~13C and images of atomic force microscope More lattice match between the films of pentacene and PTCDI resulted in fewer defects in P/N junction and more carries can reach electrodes Accordingly the power conversion efficiency approach 2% was obtained from the solar cell with the active layer of pentacene/PTCDI-7C

本研究探讨以五环素/骈苯衍生物异质接面太阳能电池之特性，利用pentacene作为电子施体有机材料，PTCDI -2C~13C作为电子受体有机材料，制作出异质接面为pentacene/ PTCDI-2C ~13C等12种有机太阳能电池，比较不同碳数的骈苯衍生物对於有机太阳能电池之光电转换效率之影响。在AM1 5G、100 mW/cm2的模拟太阳光下，以pentacene/PTCDI-7C异质接面太阳能电池具有短路电流9 882 mA/cm2、开路电压0 376 V、填充因数0 523及光电转换效率达1 945%，皆比其他pentacene/PTCDI-2C ~13C异质接面太阳能电池来的大。由薄膜分析可知PTCDI-7C在这12种太阳能电池中具有较低的电子电洞复合发光效率，可以让较多激子到达异质接面进行电荷分离，减少电子电洞对复合发光的机率；此外，由光激发萤光光谱之峰值位移配合原子力显微镜表面结构图，可以得知当PTCDI-7C成长在pentacene上时会顺著pentacene的结构成长薄膜，故较无缺陷产生在P/N接面处；而在其他结构下则无此现象产生，致使在pentacene/PTCDI-7C薄膜中的载子有较大的机会可以移动至电极，使光电流提高，进而使光电转换效率提高。

The optimized device process of p-n Alo.85Gao.15As/GaAs solar cells have been investigated. AuBe/Au and AuGeNi/Au were evaporated and metallized to form ohmic contacts of front grids and back electrodes, respectively. Heavily-doped GaAs cap layers were removed by the NH4OH:H202:H3P04:H20 selective etching solution.

分别采用真空蒸发AuBe/Au和AuGeNi/Au并合金化形成欧姆接触制作太阳电池正面栅线和背面电极；采用NH_4OH：H_2O_2：H_3PO_4：H_2O体系的选择性腐蚀液去除高掺杂的GaAs接触层；采用真空蒸发技术制备ZnS/MgF_2双层复合减反射膜。

During one programming session, I asked my audiologist to turn off all the electrodes except the one that transmitted the lowest-frequency sounds.

在一个新的程序里，我要求听觉矫正专家关掉除过可以传到最低频率声音的其他所有电极。

One of the hardest tasks facing those who fit these devices is working out the precise choreography of the voltages and timings that need to be applied to the 20 or so electrodes embedded in the auditory nerve, in order to make them work properly.

莱格兰德使用了该方式来优化耳蜗的移植，这有助于人们提高听力安装这种装置的人遇到的最难的一个任务是，解决电压与同步的精确安排，因为需要这些来应用于深埋于听觉神经里的20来个电极，以让装置工作得更好。

The effect of different discharge electrodes and settings on the experiment results is discussed in terms of average current density and relative deviation.

采用实验和数值计算相结合的方法，以极板表面平均电流密度、电流密度相对标准差为指标对电场性能进行了评价和预测，给出了几种电场性能较好的电极配置形式和几何参数调整范围。

We can then flip their spins back and forth coherently by turning gate electrodes on or off.

这用的是开关闸极的方式。

The first electrodes (12, 22, 32, 42) extend preferably beyond the surface of a memory cell.

这些第一电极（12、22、32、42）优先经一存储单元的单元表面向外延伸。

METHODS : Entropy electrodes were applied bilaterally on 21 patients under general inhaled anesthesia.

熵电极并应用于21名处于吸入麻醉状态下的患者的两侧。

In this study, we investigated the reproducibility of SE measurements simultaneously obtained from bilaterally applied electrodes in the same patient.

在这次研究中，我们通过测量应用于同一患者两侧的不同电极同时获得的状态熵来研究其可重复性。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。