查询词典 potential difference

This paper firstly analyses the limitations of traditional potential field methods in dynamic environment,and based on this analysis,the traditional potential field is improved by introducing the concept of velocity potential field .

分析了传统势场法在动态环境下的不足，并在此基础上引入了速度势场的概念，改进了传统的势场函数，推导出新的引力函数和斥力函数。

Based on the thorough study of the mechanism of self-potential and exploration method for oil and gas, some problems related to the theory of self-potential have been examined in detail in this dissertation; The origin of self-potential from the oil and gas deposits was re-expounded with the mechanism of the ionic polarization; The interpretation methods for field data collection and data processing are put forward.

本文通过对油气藏自然电位产生机理及勘探方法研究，从理论和应用两个方面分析了现有理论存在的问题，尝试运用离子极化机理重新阐述油气自然电位的成因，作为对现有理论的补充，并给出了一套较完善的野外数据采集和室内数据处理解释方法。

The presence of polarized potential is a ge neral property of the existence of an oil/gas reservoir. The whole oil/gas reser voir together with its diffusion-flowing belt can be taken as the source of the potential field, and the polarized potential can be described by a model of pol arized dipole.

油气藏存在极化电动势是共性，可以将整个油气藏、扩散带和扩散流动带作为场源，其极化电动势可用极化偶极模型描述。

Water potential may be defined as the chemical potential of water in a biological system compared to the chemical potential of pure water at the same temperature and pressure.

可以将水势定义为生物体系中的水的化学势，区别于纯水在相同温度和压力下具有的化学势。

B using press-volume technique, this paper studied the seasonal changes of water potential at saturated point (Ψ, water potential at turgor loss point (Ψ relative osmotic water content at turgor loss point ROWC(superscript thp, relative water content at turgor loss point RWC(superscript tlp, relative content of apoplastic water, bound water/free water V(subscript a/V, and the difference between (Ψ and (Ψ of Reaurnuria trigyna growing on heavy solonchack, non-salinized soil, and saline soil.

运用压力容积技术，研究了4种盐分生境下长叶红砂饱和含水量时最大渗透势Ψ(上标 sat 下标 s、初始质壁分离时的渗透势Ψ(上标 tlp 下标 s初始质壁分离时渗透水相对含量ROWC(上标 tlp、初始质壁分离时的相对含水量RWC(上标 tlp、质外体水的相对含量、束缚水与自由水的比值V(下标 a/V，以及饱和含水量时最大渗透势与初始质壁分离时的渗透势之差的季节变化。

In this paper, we use this numerical method and adopt operator splitting method to simulate the conduction model of action potential in two-dimensional cardiac ventricle tissue,the conduction model of the action potential in two-dimensional cardiac ventricle tissue is denoted by one reaction-diffusion equation with a series of ODE describing ionic channels of cell, at the same time,we adopt the compact alternate direct implicit difference method to simulate that model,compar-ing these value results,get some conlusions.

本文中，我们利用摄动有限差分方法和算子分裂思想去模拟二维心室肌中动作电位的传导模型，该模型由一个描述细胞离子通道的常微分方程组和一个反应扩散方程组成。

In the absence of a large enough electric potential difference across the LED leads, the junction presents an electric potential barrier to the flow of electrons.

在缺乏一个足够大的电势差全国率领的线索，交界处提出了一种电动势垒，以流动的电子。

Train for half year to the study team and the control group children after the different method to carry on the index of correlation the examination: Around the contrast examination experimental study four groups the event correlation electric potential ERP(P300) data and the right brain brain electricity fundamental wave alpha wave formation rate which with the brain custom, the memory level, the brain suggestion electric potential reflectoscope reflector obtains, all has the significance difference (P0.05), obtains the study team effect to surpass other control groups obviously.

对研究组和对照组儿童用不同方法训练半年后进行相关指标的检测：对比检测实验研究前后四组的用脑习惯、记忆力水平、脑诱发电位测试仪获得的事件相关电位ERP(P300)数据和右脑脑电主波α波的发生率，都有显著性差异（P.05），得出研究组效果明显优于其他对照组。

Part Ⅱ Effects of sex hormones on action potential and I〓、I〓 current in rat ventricular myocytes Objective To investigate effects of estrogen and androgen replacement on action potential and I〓, I〓 current in rat ventricular myocytes, from which to elucidate the ion mechanism of gender difference in torsade de pointes.

雌雄大鼠发生TdP的性别差异性与性别本身无关，关键在于性激素的差异，雌激素可通过使心肌细胞在复极延长的基础上EAD发生增加，导致触发活动，从而发生TdP；雄激素的作用则相反。

In CV graphs and DPV graphs, the summit current of oxidoreduction electric potential is decreased significantly and the oxidoreduction electric potential difference is increased relatively. This means the DNA of 4 Rhododendrons interact with Co 〓.

CV图和DPV图中大小两对氧化还原峰峰电流明显下降，氧化还原峰电势差增大，显示几种杜鹃DNA都与Co〓发生了相互作用。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。