查询词典 potential difference

In this situation,the electrode potential at equilibrium(i.e,when the rate of the anodic reaction equals the rate of the cathodic reaction) will be shifted from the standard electrode potential and can be defined by the Nernst equation:(5)where E0 is the standard electrode potnetial ,RT/F is a constant,n is the number of electrons transferred ,and a is the activity of the anodic and cathodic reactants.

在这个情况，电极电位在平衡(即，当正极反应的率合计负极反应的率)从标准电极电位将被转移，并且可以由能斯脱等式定义：(5) E0是标准电极potnetial的地方， RT/F是常数， n是转移的电子的数量，并且a是正极和负极反应剂的活动。

Punjab Agricultural University, Ludhiana: Two types of experiments are being conducted; one on maximum production potential for rice-wheat cropping system and second on maximum production potential of late sown wheat. In the rice-wheat experiment in progress since 1989, the treatments consist of six levels of applied fertilizers to both the crops in combination with and without green manuring to rice in randomized block design.

旁遮普农业大学：进行两类试验，其一是稻麦耕作制的最高产量潜势；其二是迟播小麦的最高产量潜势。1989年起进行的稻麦试验中，处理包括两种作物上的六个施肥水平，结合水稻施绿肥和不施绿肥刺田菁的组合，随机小区设计。

Keywords well logging instrument;cased hole formation resistivity logging;apparent resistivity;error analysis;second order potential difference

测井仪器；过套管电阻率测井；视电阻率；误差分析；二阶电位差

The result shows that the mixed boundary condition can greatly reduce the calculation area without affecting accuracy of the solution.It is followed by the higher accuracy of Dirichlet boundary condition which makes the boundary error greater when measured points is near the boundary, so we must take a sufficiently large border region.The homogeneous boundary condition has relatively large error, but the use of non-triangle poles devices makes apparent resistivity calculation error become small, because of elimination of the effect on potential difference for the infinite boundary. In inversion, in order to save computing time, homogeneous boundary conditions are often used to perform finite element forward calculation.

结果表明，混合边界条件精度最高，可大大缩小求解区域而不影响计算精度，其次是Dirichlet边界条件精度较高，但测点越靠边界误差会越大，必须取足够大的边界区域，齐次边界条件的误差比较大，但如果采用非二极装置，通过电位差计算得到的视电阻率，由于无穷远边界对电位差的影响基本消除，视电阻率计算误差与混合边界条件下的接近，在反演中，为了节省计算时间，经常使用齐次边界条件进行有限元正演。

An improved derivative estimation algorithm with a low-pass filter that can suppress the influence of high-frequency noise is suggested to remove potential drawbacks of the backward difference that was applied in neural network inversion dynamic compensation method, such as large estimation error in the presence of noise and price increase of hardware realization when high estimation accuracy is required.

针对神经网络逆动态补偿策略中基于向后差分的微分估计算法在噪声环境下存在较大的微分估计误差，且提高估计精度会增加硬件成本等缺陷，提出了改进的微分估计算法，并以加速度传感器为例，设计了动态补偿实验装置，给出了基于改进的微分估计算法的动态补偿算法的实现步骤。

The results indicated that the formation of fault basin constrained by magnetic crystalline basement. The more complex of the crustal tectonic, the greater the difference mechanical strength between crust media, the smaller thermal water release less, the easier bred major earthquake.6. Mapped the new quaternary tectonic map of four fault basin based on the data of shallow seismic profiles, drilling, and the redrawn fault system divided by the potential data processing, etc.

研究结果表明断陷盆地的形成受磁性结晶基底的制约；地壳结构越复杂，地壳介质之间的力学强度差异越大，热水点年释放量越小，就越容易孕育和发生大的地震。6、利用浅层地震剖面、钻井等资料，并参考重磁划分的断裂系，新编制了山西四个断陷盆地的第四系构造图。

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。

When the above-mentioned anions were added into the solution, the breakdown potential and negative difference effect of aluminum were found to change.

1前盲纯铝在PH二4～9的水溶液中，由于与溶液中的氧有强烈的亲合力，生成保护性较高的饨化膜，抑制了铝的自腐蚀。

If the enterprise is handled bad these difference, will bring reality to oneself or potential duty Wu risk.

企业假如处理不好这些差异，将会给自己带来现实的或潜在的税务风险。

The centimeter-gram-second electromagnetic unit of potential difference, equal to one hundred-millionth of a volt.

电磁伏特厘米－克－秒制势差的电磁单位，相当于亿分之一伏特

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。