查询词典 infinitesimal

Under these cir-cumstances,we were organ ized to compile"Infinitesimal Calculus and the Basis of Applied Math-ematics",which is a new mathematics teac...

作为高等职业教育公共基础课的数学教材，该书采用模块式、手册型，突出高职教育的应用性，便于自学，达到大学专科水平，注重对学生进行数学素质教育，特别重视培养学生的计算能力和抽象类比能力。并探索了将数学建模和计算机应用引入课堂教学。

Results showed that L-THP possessed negative inotropic and negative chronotropic action, lowed left ventricular pressure and it's infinitesimal calculus, decreased heart output in per min., shorten 〓 and 〓 of action potential of ventricular papillary muscle of guinea pig and even the plate-phase of action potential disappeared in larger dose group , but prolonged 〓. we studied transmembrane transportation of 〓 after administering L-THP , L-THP not only depressed uptake and increased release of Ca 2+ in normal myocardium, but also it showed stronger inhibition in cell injured by ISO, and fully eliminated the effect of ISO increasing uptake and decreasing release of 〓. By detecting the 〓 content of ventricular single myocyte using fluorescent probe Fluo-3/AM, results correspond to that done above, L-THP decreased 〓 content inside of cell significantly. Using whole-cell mode, we observed the effect of L-THP on Ica in ventricular single cell, it was found that L-THP decreased Ica, the effect increased with increasing it's dose, and had voltage, frequency-dependency. Dose highly corelated to effect, corelative constant is 0.87. When washing cell with normal tyre's solution, Ica could recover, which proved the blocked action of L-THP on calcium channel once again. Meanwhile, L-THP reduced production of MDA in heart injured by ISO in dose-dependent manner, improved content of GSH-Px, in case tissue or cell free from free radical damage.

结果显示，该药物具有负性肌力和负性频率作用，降低左室压及其微分，终使每分心输出量减少；缩短豚鼠心室乳头肌动作电位时程的〓和APD〓，大剂量使动作电位平台消失，〓延长；同位素示踪法研究证实L-THP抑制〓摄取，促进〓释放，降低细胞内的〓含量；单通道水平的研究证实，L-THP减少豚鼠心室肌单细胞内向钙电流，且具有剂量，电压，频率依赖性，其作用易于洗脱，药物剂量与Ica也具有高度相关性（相关系数r为-0.87）；L-THP还可抑制ISO损伤心肌组织所致的丙二醛含量增加，增加谷胱甘肽过氧化物酶的量，使组织细胞免受损伤。L-THP阻断L-型〓通道，抑制〓的摄取，促进〓的释放，降低细胞内〓含量L-THP作用的离子基础。

Effective and robust finite element methods are developed for both infinitesimal TNT deformation theory and flow theory.

为小变形的TNT形变理论和流动理论，发展了有效的有限元方法。

A new concept for large strain -true shear strain-was proposed based on the definition of strain at infinitesimal deformation.

从无穷小变形条件下应变的定义出发，提出了大变形时真实切应变的概念。

The classical mechanics of materials is based upon the linear elasticity, infinitesimal deformation, and isotropic hypotheses, which has big constraints.

传统的材料力学教材基于线弹性、小变形、各项同性等基本假设，不可避免地具有很大的局限性。

Another limitation in the original MSG plasticity theory is the assumption of infinitesimal deformation.

针对原有的 MSG 理论中小变形的假设，但是很多问题，尤其是材料的破坏问题，如断裂、剪切带等问题，都涉及到大变形；另外在微电子器件中，例如微尺度的传感器，在应用中都涉及到大变形，为了使 MSG 理论能应用于以上提到的种种实际工程情况，非常有必要发展大变形理论。

Chapter two presents the three-dimensional equations of the nonlinear theory of electroelasticty for large deformations and strong fields and the linear theory of piezoelectricity for infinitesimal deformation and fields.

第二章从连续介质力学理论出发，给出了适于压电研究的普遍的电弹性非线性理论，以及近似的三维线性压电理论和线性压电本构关系。

It can be concluded that the slipping of phase interfaces or the viscous sliding of grain boundary, dislocation's oscillation, the infinitesimal plastic deformation that was caused by the difference of elastic module and heat expansion coefficient between phases of the alloy yielded the damping of the alloys.

研究表明合金的阻尼是由合金晶界和相界面滑动、位错振荡以及各相的热膨胀系数和弹性模量间差造成的微塑性变形共同造成的。

On the basis of Chen's equation of finite deformation mechanics with a dragging coordinator system,the paper studied the meaning of elastic parameters and constitutive equation in the medium equivalent to classic infinitesimal deformation mechanics that cracked,large deformation formation corresponds to and relevant features of seismic velocity.

基于陈至达的拖带坐标系的变形力学方程，研究了大变形破裂地层对应的经典无限小变形力学的等效介质弹性参数的含义、物性方程和相应的地震反射波的速度特性。

It is indicated that the damping of the alloy is induced by phase interface slipping or grain boundary viscous sliding, the infinitesimal plastic deformation which is caused by the difference of elastic modules and heat expansion coefficients between phases of the alloy.

结果表明： ZA27-4%Si合金阻尼随频率增大而减小，随温度升高而增大，阻尼不随应变振幅的变化而变化； ZA27-4%Si合金室温阻尼为5.83×10-3，与ZA27合金阻尼相当； ZA27-4%Si合金的阻尼是由合金内部的晶界和相界面滑动、位错振动以及各相的热膨胀系数和弹性模量间差造成的微塑性变形共同造成的。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。