查询词典 resistivity

When a small amount of poly was added, the surface resistivity of PVC materials was not sensitive to atmospheric humidity and was further reduced, and the tensile strength and break elongation of PVC, however, were improved.

在上述抗静电PVC材料中添加一定量的聚氧化乙烯，可以降低抗静电材料对环境湿度的依赖性，并提高PVC材料的力学性能和抗静电性能。

Results show the sheet resistivity and surface roughness were improved, whereas the optical transmittance was slightly deteriorated.

研究结果显示，Ni金属堪入的ITO膜可以有效降低ITO片电阻率、表面粗糙度，在透光率方面虽有下降，但降幅不会很大。

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。

The experiment shows that:(1) In certain light intensity and electric field ranges (145～305V/cm) the material Si∶ with a resistivity of 1E4Ω·cm exhibits a current oscillation phenomenon at liquid nitrogen temperature;(2) At a certain electric field,the waveform of the current oscillation is stable and does not change with time;(3) The dependence relation between the oscillation frequency and light-intensity can be expressed by f=f0(L/L0)α where L0 is the minimum light-intensity needed to stimulate oscillation,f0 is the frequency under L0,L is the intensity of the light,and α is a coefficient that increase with electric field;(4) The modulating coefficient K K=(Imax-Imin/Imax decreases as the light increases;(5) The maximum value of the oscillation Imax decreases with the increase of the light-intensity while the minimum value of oscillation Imin increases slowly.

结果表明：在一定光照和电场范围内（276～305V/cm ，电阻率为10.4Ω·cm的材料在液氮温度下显示出电流振荡特性；在一定的电场下，电流振荡波形是固定的，不随时间变化；振荡频率随光照强度的增大而线性增大；调制系数随着光强的增强而减弱；振荡的最大值随着光照强度增大而减小，最小值随着光强增大而缓慢增大。

The relevant experiments illustrates A.C. power is more suitable for deicing or snow-melting than D.C. Silica fume can improve the dispersion of carbon fibers and then reduce the electrical resistivity of carbon fiber cementious composites. At a certain volume content, when the ratio of cement, sand and stone is l:l:2, the properties of the CFRC is the best on the whole.

大量实验研究发现：采用交流电是碳纤维导电混凝土用于融雪化冰时的最佳电源选择；采用硅灰能较好地提高碳纤维在基体中的分散性，有效降低碳纤维水泥基复合材料的电阻率；并在现有的级配比实验中发现了具有最好综合性能的配比，即在相同的纤维体积含量的情况下，导电混凝土的具有最好综合性能的配比是水泥、砂子、石子的重量比为1：1：2。

The results showed that the electrical conductivity of the composite was improved as the particle size of silver-coated glass bead increased;the electrical conductivity and its stability of composite prepared with wet pretreatment or in-situ modification-dispersion were better than those of composite prepared with direct dry-mixing;the electrical conductivity of composite was improved as the curing degree of electrically conductive silicone rubber increased;the Payne effect was highly related to the volume resistivity of electrically conductive silicone rubber.

结果表明，镀银玻璃微珠的粒径越大，复合材料的导电性能越好；湿法预处理和原位改性-分散工艺制得复合材料的导电性能和导电稳定性优于直接干混工艺；导电硅橡胶硫化程度的提高有利于提高材料的导电性能；Payne效应的大小与导电硅橡胶的体积电阻率有很强的相关性。

The well-log oil saturation is one of the most important parameters that can be used to calculate OOIP of a reservoir,and is usually derived by Archie Equation in which the porosity cement factor m and saturation exponent n in a reservoir are determined by the measurements of rock resistivity in laboratory.

测井含油饱和度是计算石油地质储量的重要参数之一，通常由Archie公式获得，公式中的孔隙胶结指数m和饱和度指数n需依据岩石电阻率实验室测量结果确定。

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。

While many other alloys are susceptible to precipitation hardening which changes electrical properties unpredictably, the resistivity of EVANOHM alloy R always increases during heat treatment.

在别的很多合金因容易被沉淀硬化而使得电理性能变得不可预测时， EVANOHM alloy R 在热处理中电阻总是在上升。

Interferences in a synthetic observation of apparent resistivity and geomagnetism are analyzed and experimental study on this problem.

本文分析了地电、地磁同台观测中出现的干扰问题，并针对地电观测对地磁场测量的影响进行了研究。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。