电学

The results indicated that the nitridation condition obviously influenced the photoluminescence properties and electric parameters of GaN films.

研究表明，GaN低温缓冲层生长之前的氮化衬底工艺对GaN外延层表面形貌、发光性能、电学性能有显著影响。

N order to make piezoelectric effect theory deeper and more perfectible and improve the accuracy of the piezoelectric sensor and actuator, the theory of the multi-piezoelectric effect is first emphatically studied in this paper.

为了使压电学体系的基础理论研究得到深入与完善，进一步提高压电类传感器与执行器的精度。

Meanwhile,a method measuring the rise time and the fall time of the photoresistance is introduced.

用光敏电阻设计学生实验可以综合光学、电学的实验方法。

In this paper,three kinds of conductive adhesives were developed by using polyvinylidene fluoride as binding materials and carbon nanotubes graphite and carbon black acetylene as conductive fillers.

采用涂膜法制备了以碳纳米管、乙炔黑和石墨粉为导电填料的导电胶，研究了它们的电学性能、力学性能和粘结性能。结果显示，聚偏氟乙烯/CNTS导电胶有较好的综合性能

In this dissertation, basing on molecular designs, two functional blocks such as perylene bisimide and pyrazolone were introduced to the polymer structures,trying to obtain two novel Schiff-based polymers, whose optical property and electrical property are more excellent and the inherent properties of Schiff-based polymers will be kept.

论文在综合文献的基础上，通过分子设计，将苝酰亚胺与吡唑啉酮两种官能团引入席夫碱聚合物结构中，试图构筑两类新型席夫碱聚合物，在保持席夫碱固有的性质功能的基础上，进一步改善席夫碱聚合物的光学和电学性能。

Interchangeable connector personality modules releasable attached to the link cable permit testing networks having different electrical characteristics.

有若干可替换的连接器专用模件可释放地连接到链接电缆上，从而能够对具有不同电学特性的网络进行检测。

The mian works are as follows:(1)By coprecipitation technique and coprecipitation- gel technique the nano zirconia powder was produced, factors affecting the properties of nano zirconia powder such as pH and the content of stabilizator are analyzed;(2)By the new pressless sintering process, the nano zirconia ceramic was produced, factors which can affecting the properties of nano zirconia sinter body such as moulding press and the sinter temperature are analyzed;(3)By the microtherm pressless sintering process, the nano copper added functional zirconia ceramic composite was produced, microscopic dimensionality and electric properties of such sinter body and the factors affecting such sinter body are analyzed;(4)By the self-invented "external albumen coating" technique the zirconia powder was successfully coated by carbon in the corresponding sinter body, which can help solve the traditional aggregation problem to some degree;(5)Based on analyze the characteristics in the nano powder sinter process, the "three-ball sinter model" was proposed, for the relationship between the relative density and porosity of sinter body, by mathematical fitting, such model was successfully verified.

本研究比较系统地研究了纳米氧化锆陶瓷的合成与成型机理，特别是讨论了纳米氧化锆陶瓷的稳定性，为防止纳米颗粒在外场作用下的团聚和长大提供了理论基础和实验数据，具体工作有以下几方面：(1)采用共沉淀法和共沉淀-凝胶法制备了纳米氧化锆粉体，并分析了pH值和稳定剂含量对粉体性能的影响；(2)采用新型无压烧结工艺制备了纳米氧化锆陶瓷，并分析了成型压力和烧结温度对烧结体性能的影响；(3)采用低温无压烧结工艺制备出添加纳米铜的功能性纳米氧化锆复合陶瓷，并分析了烧结体的微观尺度和电学性能的变化以及影响因素；(4)通过自创的&鸡蛋清外敷法&在真空镀膜台上对纳米氧化锆粉体进行包敷碳颗粒的表面处理，并采用真空烧结工艺制得相应烧结体，初步开始解决陶瓷烧结过程中团聚长大这一传统难题；(5)通过分析纳米颗粒在制备烧结体过程中的实际特点，提出了&三球烧结数学模型&，通过引入坯体相对密度和孔隙率的相对关系分析并通过自行编写的数学拟合软件，验证了这一数学模型。

With the quick development of glass electric melting technology, glass electric melting furnace have higher requirement to tin oxide electrode from the early density to subsequent electric performance. Recently, the research in toughing of ceram boosted the progress of stannic oxide electrode, especially in toughing.

随着玻璃电熔技术的快速发展，玻璃电熔炉对二氧化锡电极的电极要求越来越高，从早期的致密度到后来的电学性能，近期，随著陶瓷增韧方面的发展，对其力学性能特别是强韧性提出了新的要求。

With the quick development of glass electric melting technology, glass electric melting furnace have higher requirement to tin oxide electrode from the early density to subsequent electric performance. Recently, the research in toughing of ceram boosted the progress of stannic oxide electrode, especially in toughing.

随着玻璃电熔技术的快速发展，玻璃电熔炉对二氧化锡电极的电极要求越来越高，从早期的致密度到后来的电学性能，近期，随着陶瓷增韧方面的发展，对其力学性能特别是强韧性提出了新的要求。

The core result conforms to TCM chronomedicine theory that "the cardiacpatiens feel surgeless in the morning, day is better while night is worse",which is proved to be true in science. The result combines modern Holterelectrocardiographic indicators, Zi wu liu zhu time rule and zangfusyndrome differentiation.

研究的核心结果与中医&心病者，日中慧，夜半甚，平旦静&的理论不谋而合，证明了中医时间医学&心病者，日中慧，夜半甚，平旦静&理论的科学性，并把现代动态心电图的心电学指标与中医子午流注时辰规律、脏腑辨证结合起来。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。