查询词典 kinetic-potential

The relationship between the effect of friction on the motion and the parameters, including driving velocity, the kinetic friction coefficient, the friction drop number between the static and kinetic friction coefficient, and the joint equivalent spring stiffness, is investigated quantificationally.

本文分别计算这两类系统受同样激励时的摩擦扰动均值比，进行对比研究，在相同参数条件下，包括动摩擦系数，静动摩擦落差数和激励幅值，摩擦对微振动系统的影响一般要大于对有限刚体运动系统的影响。

Adopting similar principles of gas kinetic theory, scientists have set up the kinetic theory model of granular flows.

本文主要研究内容和成果如下： 1、利用颗粒流二维数值模拟程序对剪切盒实验进行了模拟。

Based on the hydrodynamic theory of dense gas-solid flow and the kinetic theory of dense gases proposed by Chapman and Cowling, the kinetic theory of cohesive particles flow and constitutive equations of cohesive particles are established.

目前科学家们对粘附性颗粒的流态化研究主要集中于实验研究，数值模拟研究做的比较少，特别是对传统的双流体模型，如何进一步改进完善，以适应粘附性颗粒的气固两相流动的研究，成为当务之急。

In the modified Newtonian mechanics, the law of conservation of momentum and the law of conservation of energy become invalid; instead, the inherent momentum and inherent kinetic energy can be defined to make the law of conservation of inherent momentum and the law of particle inherent kinetic energy valid.

在修改后的牛顿力学中，动量守恒定律和能量守恒定律不再成立，但可以定义固有动量和固有动能，使得质点系固有动量守恒定律和质点固有动能守恒定律成立。

The adsorption of Lutetium on the peat is studied under static conditions. The adsorption ratio and adsorption rate for Lutetium onto peat are so high that the surface complex reaction reaches equilibrium. The adsorption of Lutetium is not pH and ion strength dependent. The kinetic process of adsorption can be described by the Elovich equation excellently among five kinds of classical kinetic models, and the adsorption isotherm fits both the Langmuir equation and Freundlich equation very well by means of regression analyses.

静态条件下泥煤对溶液中Lu(上标 3+)的吸附率较高，而且吸附速度较快，镥与泥煤能迅速发生表面络合反应达到平衡。pH值和离子强度对低浓度镥吸附动力学影响不大。5个经典动力学方程中Elovich方程能较优地描述泥煤吸附Lu(上标 3+)的过程。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。

F How will Rowena's kinetic energy at 9.0 s compare with her kinetic energy at 5.0 s Explain your reasoning.

f请比较Rowena在5.0 s和9.0 s时动能的大小，并作出解释。

The results show that, during the period of collision between the sand grain and the sand bed, the lost kinetic energy is more than half of the total energy. Moreover, because the percentage of collision angles with more than 0° is up to 70％, the vertical speed of sand increases even if the kinetic energy decreases, which ensures that the sand particles can receive more energy from the air to keep on the saltation movement.

实验结果表明，沙粒与沙床碰撞过程中损失的动能超过总能量的一半，且由于碰撞平面角大于0°的比例达到70％，即使沙粒在碰撞过程中能量有所损失，沙粒与沙床碰撞后垂直分速度增加的现象仍比较普遍，使得沙粒在与气流相互作用的过程中获取更多的能量，从而为沙粒的持续跃移提供了保证。

The experimental results show that the electrochemical synthesis process of sodium dichromate from sodium chromate presents zero order reaction kinetic characteristics, and the electrochemical synthesis process of chromic anhydride from sodium dichromate presents first order reaction kinetic characteristics.

铬酸钠电催化合成重铬酸钠反应表现为拟零级反应动力学特征，重铬酸钠电催化合成铬酸酐反应表现为拟一级反应动力学特征。

The thermal decomposition mechanism and kinetic parameters of the decomposition reaction of CeDNS were investigated by means of TG/DSC and in situ condensed phase thermolysis/FTIR. The kinetic equation of decomposition reaction was obtained.

用TG和DSC以及变温固相原位反应池／傅立叶变换红外光谱联用技术研究了3，5-二硝基水杨酸铈的热分解机理，对主放热反应的DSC峰进行了数学处理，计算得到了动力学参数和动力学方程。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。