等电位的

The thesis is organized as follows:In Chapter 1,a new partial differential equation model for Spontaneous Potential log in heterogeneous formations is introduced.At the same time,the existence and uniqueness of weak solution to the problem are proved,and the problem of resistance identification in SP log is studied.Furthermore,a jump condition capturing finite difference scheme is proposed and applied to solve such elliptic interface problems.The effects of various factors on SP response,which include objective layers resistivity,bed thickness,bore-hole diameter,invasion and water-flooded zones and so on,are investigated quantitatively by the proposed method, and satisfactory results are obtained.

具体安排如下：第一章首先建立复杂地层中自然电位测井的偏微分方程数学模型，证明了该边值问题弱解的存在唯一性，在此基础上研究了自然电位测井电阻率识别问题：然后发展了用于求解椭圆交界面问题的间断捕捉有限差分方法，利用该方法定量分析了目的层电阻率、地层厚度、井径、侵入带和水淹层等因素对自然电位测井响应的影响，取得了满意的结果。

The analyses of XRD,Zeta potential,SEM,EDS and low voltage cathodoluminescence were conducted for investigating the crystal structure,potential,morphology and luminescence properties of coated and uncoated Y_2O_3∶Eu.

通过XRD，Zeta电位，SEM及低压光谱分析等检测手段分析了包膜前后Y2O3∶Eu的晶体结构、电位、形貌与发光性能，探索了包膜工艺。

There are many electrochemical methods for measuring the diffusion coefficient of lithium in carbon such as Electrochemical Impedance Spectra method、Potential Step Chronoamperometer 、Potential Intermittent Titration Technique 、Current Pulse Relaxation and Warburg impedance methods.

测试锂在碳材料中扩散系数常用的方法有电化学交流阻抗图谱法、电位阶跃时间电流法、电位间歇滴定法、电流脉冲驰豫法和Warburg阻抗法等。

departure maps, isochrone map, peak potential map and isointegral map of BSPM were sensitive indexes for diagnosing MI.

体表差电位图、等时图、峰电位图及等积分图均为诊断MI的敏感指标。

Diagnostic value of departure maps for myocardial infarction;2. A comparative study was made of departure maps , peak potential map, isochrone map, isointegral map in BSPM and ECG in 42 patients with MI using a BSPM Ⅲmodel computer system.

目的 ：比较体表电位标测各种图形与心电图诊断心肌梗死的敏感性，方法采用 BSPM-型体表电位标测微机系统，对 42例 MI患者和健康人的体表差电位图、峰电位图、等时间图、等积分图及 ECG进行了对比研究。

A comparative study was made of departure maps, peak potential map, isochrone map, isointegral map in BSPM and ECG in 42 patients with MI using a BSPM-Ⅲmodel computer system. RESULTS: All maps of BSPM in patients with anterior and inferior MI were appeared typical abnormal feature.

目的：比较体表电位标测各种图形与心电图诊断心肌梗死的敏感性，方法采用BSPM-Ⅲ型体表电位标测微机系统，对42例MI 患者和健康人的体表差电位图、峰电位图、等时间图、等积分图及ECG进行了对比研究。

Results: Digital quantitative EEG, some absolute, relative, monopolar mean frequency of kinesthesia and kinesthetic perception area FP2, F6, C4, F8, T6 were lower than the value of corresponding hemishere within delta, theta, alpha, beta band.

结果：数字量化头皮脑电位中FP2，F6，C4，F8等脑区的绝对值，相对值和运动觉与运动知觉电位在δ，θ，α，β，4个频带比相对应脑区各项值低。

The Zetasizer Nano ZS is made in Marvern in England. It is the newest Zetasizer Nano ZS with the newest technology. Malvern Zetasizer Nano ZS90 is for the measurement of size, zeta potential of dispersed particles and the molecular weight of random coiled polymers. If it connect with the Autotitrator, it can measure zeta potential as a function of pH, conductivity or concentration of an additive, provides much greater insight into the processes involved in stabilizing or flocculating disperse systems.

英国马尔文公司生产的Zetasizer Nano ZS型纳米粒度仪是目前世界上技术最先进的纳米粒度仪之一，该仪器可以测定纳米材料的粒度分布、ZETA电位值，并可以进行蛋白质的熔点测定，及蛋白质等大分子和聚合物材料的分子量测试，如果与自动滴定仪相连接后，可自动测定粒度或Zeta电位随pH值、盐浓度或添加剂浓度等的变化趋势。

The second part was to test the appearance, ingredient analysis, surface potential, thermal conduction properties, and magnetism of the nano composite fluid prepared from the parameters. The experiment found that unoxidized particles, Ag, Cu, Fe, and Ni appeared round. If combined with oxygen in water as oxides, the nano particles would grow toward certain directions. In copper/iron nano composite fluid, FeO appeared cubic, Cu2O appeared coniferous. In silver/iron nano composite fluid, FeO was polygonal. In dielectric potential detection, the nano composite fluid was likely to aggregate and deposit, except for silver/iron set. In other sets, the pH of silver/cobalt nano composite fluid was 7, surface potential was 21.21mV; the pH for silver/nickel nano composite fluid was 6.5, surface potential was 21.04mV; the pH for copper/iron nano composite fluid was 7, surface potential was -30mV. The fluid particles of the three sets could all maintain suspension of 2 weeks or more. For thermal conduction, the silver/nickel, nano composite fluid showed the best thermal conduction. Under temperature of 30℃ fluid weight conduction of 0.4%, the thermal conduction increase was 26%. For magnetic detection, except for silver/iron nano composite fluid, the nano particles of other three sets were paramagnetic, and all four sets were soft magnetic nano composite materials.

第二部分。将由较佳制备参数所产出的奈米复合流体，进行形貌外观、成分分析、表面电位及热传导性质实验与磁性检测；在奈米颗粒的形貌部分，经实验发现Ag、Cu、Fe、Ni等未氧化的颗粒皆呈现近似圆形，而若与水中的氧结合形成氧化物，奈米颗粒则会朝特定方向成长，在铜/铁奈米复合流体中FeO为四方体结构、Cu2O的颗粒是针叶状，在银/铁奈米复合流体中FeO则为多边形结构；而介面电位检测方面，结果显示经本制程所产出的奈米复合流体除银/铁奈米复合流体这一组较容易聚集沉淀外，其他三组中银/钴奈米复合流体的pH值为7，表面电位为21.21mV，银/镍奈米复合流体的pH值6.5表面电位为21.04mV而铜/铁奈米复合流体的pH值为7时表面电位约在-30mV，且此三组流体颗粒皆能维持悬浮性2周以上，悬浮性较佳；热传导实验部分，四组奈米复合流体中以银/镍奈米复合流体在增进热传上效果最佳，在温度30℃及流体重量浓度0.4﹪条件下热传导系数增进达26﹪；磁检测方面，除了银/铁奈米复合流体外，其他三组奈米颗粒皆属顺磁性，且这四组奈米复合材料都是属软磁性。

Shandong College of Health Science faculty after poisoning in rabbits EMG de termination after poisoning rabbits found in the resting state. both spontaneous dener ated potential (fibrillation potentials and positive sharp wave) and the beam vibratevp otential; maximal contraction and mixed-interference type discharge, there is increas ed potential multiphase, low voltage and the peak potential way to extend. HeFengsh -eng, etc. right poisoning rabbits leads to fibrillation potential, EMG evidence of pois -oning animals in the performance of patients with clinical line.

山东医学院卫生学教研组对中毒后的家兔进行肌电图测定，发现中毒后家兔在静息状态下，均有自发的失神经电位和束颤电位；最大收缩时有混合型及干扰型放电，还有多相电位增多，低电压和峰电位时程延长［7］，何凤生等［5］对中毒家兔也引出纤颤电位，证明肌电图在中毒动物身上的表现与临床患者相一致。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。