表面电阻

The perfect coating agents were prepared by use of the Mini-tab DOE anlysis experiment with the ratio of nano-tuber PANIs and the hydrochloric PANIs,the dosage of CNT adulterant,the dosage of bonds and the dosage to fabric.

利用对整理剂用量的单因数工艺实验，对涂层织物的表面比电阻和微波屏蔽性能进行了分析，优化涂层织物的最低表面比电阻使之达到16Ω，整理后织物的导电性大大提高。

But, it is a complicatedly diabatic and mass transport process that laser interacts with resistance materials.

针对上述情况，本文通过优化工艺设计方案进行电阻和电极的直写，并从电阻和电极界面的结合行为以及对形成电阻的表面性能、电气性能的影响进行分析和讨论。

In chapter three, various theories and experience on the dispersion of nano-powders proposed by former researchers were generalized and reviewed. Technical standards and experimental process for determining technological parameters were suggested for the dispersion of nano-scaled metal oxides in aqueous medium according to their surface wettability, surface charge, the dependence of surface charge on pH and the compatibility of surfactants with pH and pH adjusting agents. Based on these suggested standards and experimental method, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powders were prepared successfully and surface modification on these nano-powders was also achieved.

本文第三章通过大量的文献调研，归纳总结了前人在纳米粒子分散技术方面的理论和经验，并在此基础上根据纳米氧化物粉体的表面润湿性、表面电性及其与分散介质pH值的关系、表面活性剂及其与pH调节剂的配伍关系设计了纳米氧化物水分散体系的工艺规范以及确定工艺参数的通用实验步骤，成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，为纳米材料在氧化锌压敏电阻中的应用创造了第二个前提条件。

In this thesis, three major achievements were made in theoretical study: conditions and rules for preparing nano-powders by chemical precipitation are analyzed from the point of view of thermodynamics and kinetics, the principle, standards and experimental method for the aqueous dispersion of nano-scaled metal oxide powders were proposed and verified, mathematical model of nano-filming addition of dopants by chemical coprecipitation was established. In experimental research, nm-ZnO, nm-Bi〓O〓, nm-Co〓O〓 and nm-MnO powder with spherical shape, narrow particle size distribution and small particle size were prepared successfully, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powder were prepared successfully and surface modification on these nano-powders was also achieved, 0-3 nanocomposite ZnO varistors with nm-ZnO, nm-TiO〓and nm-MnO respectively were prepared successfully by conventional mechanical attrition, and exhibited much better electrical properties than those of conventional varistors.

综上所述，本文在理论研究方面取得了三项成果：（1）从热力学和动力学角度推导并分析了液相化学沉淀法制备纳米粉体的反应条件和规律，（2）提出了纳米氧化物的水分散体系的设计原理、规范和通用实验步骤，（3）提出了共沉淀的数学模型和计算方法；在实验方面所取得的成果有：（1）成功制备了粒度小、分布窄、形貌对称的纳米氧化锌、纳米氧化铋、纳米氧化钴和纳米氧化亚锰，（2）成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，（3）成功地进行了纳米氧化锌、纳米二氧化钛和纳米氧化锰对压敏电阻的0—3复合掺杂实验，试样性能远优于常规压敏电阻，为实现压敏电阻的高能高压化提供了新的方法和思路。

For close coordination and continuous product development to meet the customers needs, I have launched a series of the Division for surface mount MELF resistors, also known as wafer resistance, columnar resistance or non-lead resistance and so on, including the ultra-sophisticated, ultra-low temperature coefficient of RJM series, ultra-high resistance, high operating voltage of the RGM uranium metal film resistors.

为紧密配合和持续满足用户产品开发需要，我司推出了一系列用於表面贴装的 MELF 系列电阻，也称为晶圆电阻、柱状电阻或无引线电阻等，其中包括超高精密，超低温度系数的 RJM 系列，超高阻值，超高工作电压的 RGM 金属铀膜电阻器。

Reflective properties of HIS loading resistance and finite conductivity patch were analyzed by HFSS electromagnetic simulation software,and the absorbing effects of square patch HIS and dentiform patch HIS with loss were compared.

研究了带有损耗的高阻表面，使用HFSS电磁仿真软件仿真分析了电阻加载和有限电导率贴片高阻表面的反射特性，并对带有损耗的普通方形贴片与齿化贴片高阻抗表面的吸波效果进行了对比。

3 Surface Resistivity – It is independent of the square or its dimensional units. It's measured and expressed in ohms / sq.

表面电阻率--测量值以欧姆/平方为单位，与被测量材料的平方的大小或尺寸单位无关。

Temperature and relative humidity can also affect the surface resistance.

温度和相对湿度也会影响表面电阻。

A new method and experimental device for measuring microwave surface resistance of high superconducting thin films are presented in this paper.

本文报导一种测量高温超导薄膜微波表面电阻的新方法和测试装置。

A quaternary ammonium salt compound with a long chain of 12 carbon atoms was synthesized and used as an antistatic agent to be added into plasticized poly, and the structure and properties of such PVC materials were studied by surface resistivity, mechanical property and scanning electronic microscope tests.

合成了一种长链季铵盐类化合物，将其用作抗静电剂添加到软质聚氯乙烯材料中，测试了材料的表面电阻、力学性能，并采用扫描电子显微镜测试研究了其结构。

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。