质子

A new method to reduce the contact resistance between metal current collector and graphite plate for PEMFC has been proposed.

建立一种降低质子交换膜燃料电池金属集流板与石墨单极板接触电阻的新方法。

Gas diffusion layer is one of the most important components in proton exchange membrane fuel cell. The contact resistance between current collector and gas diffusion layer is an important part of the total resistance of fuel cell and is also a key factor led to the power loss of PEMFC.

气体扩散层是质子交换膜燃料电池的重要组件，其与极板之间的接触电阻是燃料电池内阻的重要组成部分，也是导致燃料电池功率损失的重要因素。

Target compounds have been synthesized by condensation of the aromatic nucleus and amino heterocylcle with acyl isocyanates or acylisothiocyanates in absolutely anhydrous and aprotic solvent.

为了寻找高活性的农药品种，利用生物等排原理和亚结构连接法，对脲类化合物的母体结构进行了修饰，将芳氧羧酸类及吡唑环引入酰基脲母体结构中，利用酰基异氰酸酯与杂芳环胺类化合物在无水非质子溶剂中发生亲核加成反应，合成了四个系列21种新的酰基脲类目标化合物。

We thorough search the stable conformers of aromatic amino acids and arginine and examine the properties of the stable conformers using ab initio and DFT methods. The properties examined include the characteristics of intramolecular interactions, IR and UV spectra, temperature dependent conformer distributions, electron attachment and ionization energies, protonation/deprotonation processes.

木论文对芳香型氨基酸和精氨酸进行了理论研究，研究的性质包括几何结构、电子结构、构刑分布、电离能和电子亲和势、质子化过程、红外谱、紫外谱以及分子内相互作用等方面。

This model couples the conservation of mass, momentum and species equations with transport equation in the membrane.

模型耦合了连续方程、动量守恒方程、物料守恒方程和水在质子交换膜中的传递方程。

This model couples the conservation of mass, momentum and species equations as well as water transport equation in the membrane.

刚ler研究了质子交换膜内水、温度和电流密度的分布。wangls和You[6] 分别对PEM燃料电池阴极内的汽液两相传质进行了不同侧重的研究。

The standard curve of correlation between membrane surface and fluorescence intensity of FPE was obtained by acid titration. The membrane surface pH was measured according to this curve.

在不影响膜结构的条件下，利用微量TritonX－100消除膜表面与介质之间的质子浓度差，通过酸滴定实验，能够得到膜表面pH与FPE荧光强度之间的相关曲线。

They touch on both the relationship between countries and the complex web of nationalities, so they\' re the key points of the paper.

这些质子都是在民族关系的层面之上，既涉及到国与国之间的关系，又涉及到复杂的民族关系，是本文研究的重点。

Between the {111} planes in single crystal Si there are two interplanar spacings, d(111) and d(111), but there is only one interplanar spacing d(110) between Si {110} planes, so that their blocking dips would be different.

单晶Si的{111}晶面有两个面间距d_(111)~和d_(111)~，而{110}晶面只有一个面间距d(110)。由此导致两者的堵塞坑是不同的，我们已从α粒子和质子的Si单晶堵塞效应的实验得到了证实。

The T1 values of the water Protons in the eggs of Ostrea cucullate and Rona nigromaculate before and after fertilization were measured by H NMR technique.

使用核磁共振波谱技术测定并比较受精前后卵子中水质子的T_1值，初步探讨了造成其变化规律的原因。

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。