查询词典 constants

Model of consecutive first-order reaction taken as an example, RCRA has been employed to determine the rate constants.

该方法用于处理苯胺电解降解的两维数据，发现苯胺降解过程中有一种表观中间体存在，降解过程符合一级连串反应模型。

The result showed that the degradation of polyitaconic anhydride in phosphate buffer solutions was the first-order reaction, and its degradation apparent constants were 0.0498, 0.0576 and 0. 1382h~(-1) in ph...

结果表明，聚衣康酸酐在磷酸缓冲溶液中的降解符合一级反应动力学规律，在pH值为5、7.4和8.8的缓释溶液中的表观速率常数分别为0.0498、0.0576和0.1382h~(-1)。

The results show that, for the elasto-plastic contact of tip-substrate approach and separation process, the material plastic yielding in the atomic level is still governed by the von Mises criterion. For the adhesion of flat-ended wedges, continuum mechanics can be still applied down to a few lattice constants within the contact region, and give reasonable results, apart from the discrepancies near the contact edges. Moreover, adhesion hysteresis occurs during unloading due to the atomic steps, where the unloading curve does not coincide with the loading one. This in turn supports the presumption proposed by Pollock for the adhesion of stepped spheres.

本文首先对针尖—基体模型的弹塑性接触机理进行了深入研究，指出在原子水平上材料的塑性屈服仍由Von Mises准则控制；对平底锥冲头粘着接触的模拟表明，除了在接触区边缘附近有一定差别外，接触力学方法在接触区内几个晶格常数范围内仍能给出令人满意的结果；由于原子台阶效应，加载与卸载曲线不重合，出现粘着滞后，证实了Pollock关于具有纳米阶梯结构的球体粘着滞后现象的推测。

The flow-field around a hemisphere and a flat-nosed cylinder in the shock tube is simulated numerically by using non-equilibrium Navier-Stokes equations with an air chemical model of 5 species 17 reactions, and the catalytic rate constant of surface materials such as Pt, SIC:, Ni and a flight vehicle materials is determined by using the heat transfer rate of testing in the shock tube and the distribution of heat transfer rate along with the catalytic rate constants.

用5组分17个化学反应Durm-Kang空气化学模型和轴对称热化学非平衡Navier-Stokes方程，对激波管中球头和平头圆柱模型绕流流场进行了数值模拟，给出了驻点热流随催化速率常数变化的分布，并根据激波管实验测量的热流值确定了表面材料Pt、SiO2、Ni和某种飞船材料的催化速率常数，建立了数值分析高焓流动边界层催化特性的软件。

Two kinds of cantilever beams used in the MEMS devices are designed as the fixed-fixed and crag-leg flexures, and the spring constants are derived respectively using energy methods of elastic mechanics.

设计了在MEMS器件中最经常用到的两种悬臂梁结构，即直角型和蟹脚型，通过利用弹性力学的能量分析法分别得到各自的弹性常数。

Furthermore,the four-phase point-by-point fitting model was used to obtain the optical constants in more accuracy.

然而这一波段的光学性质对于器件设计非常重要，所以有必要对其进行进一步研究。

Convert; thousands of conversion plus more than 40 physical constants and many specific gravities.

转换；数以千计的转换，另加40多个物理常数，并有很多具体的比重。

The rate constants and yields of aromatic halides containing substitute s with different electrophilicities were investigated.

三氟乙酸钠在以CuI为催化剂的条件下与卤代芳烃进行取代反应，生成相应的三氟甲基化合物。

In order to constituting each contents of various fatty acids of grease to all have certain scope, therefore, the grease absorbs halogens of the ability become one of its characteristic constants.

由于组成每种油脂的各种脂肪酸的含量都有一定的范围，因此，油脂吸收卤素的能力就成为它的特征常数之一。

Total information display The large size LCD provides a comprehensive display of data such as ship's heading, set course, rudder angle, and control constants.

总信息显示在大尺寸液晶显示器提供了诸如船舶的标题，设置课程，舵角，控制常数一个全面的数据显示。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。