查询词典 irreversibility

By using the Jordan decomposition of the generator, the difference in terms of the autocorrelation function between the reversibility and the irreversibility is shown.

使用生成元的若当分解，给出了以自相关函数描述的可逆性和不可逆性之间的区别。

First, the relationship between them had been up and down, but the general tendency was descending. Second, the honeymoon time was short, and it always kept states of contradictoriness. Third, the struggles sometimes showed relaxed and sometimes showed sharply. While the forms were legal. The struggle fields showed in politics, economics and thought field. Four, the crackof two sides relationship was irreversibility.

一是两方关系有起有落，总的呈下降趋势；二是实质上的蜜月时间短，多数时间处于矛盾对立状态；三是斗争时缓时烈，斗争形式一般为合法斗争，斗争领域一般在政治、经济、思想领域；四是双方关系的破裂表现出不可逆性。

We use finite-time thermodynamics to study the effect of the irreversibility inside the heat engine and the thermal reservoir temperature ratio on the performance and the related parameters of a combined Carnot heat engine under the maximum thermal efficiency.

以有限时间热力学研究热机内之不可逆性和两热库间之温度比等因素对於最大循环热效率时复合卡诺热机之性能和相关参数之影响。

We use finite-time thermodynamics to study the effect of the irreversibility inside the heat engine and the thermal reservoir temperature ratio on the performance and the related parameters of a combined Carnot heat engine under the maximum ecological optimization function.

以有限时间热力学研究热机内之不可逆性和两热库间之温度比等因素对於最大生态学准则函数时复合卡诺热机之性能和相关参数之影响。

The main results of the investigation are as following:(1) Some important criteria for the design of multi-layer structure are acquired: the ratio of the layer thickness to the contact diameter should be controlled to a value about 0.8; increasing the number of the gradient layers and elasticity modulus of the top layer would benefit to the yield strength and the stress status at the interface.（2）By means of molecular dynamics simulations for a indentation and sliding process, it is discovered that dislocations of 45 direction to the surface occur in the surfaces layer, which is correspond to the direction of the plastic flows observed in the macroscopic continuous medium. The irreversible deformation caused by the dislocation and the atom piles at the surface are responsible for the irreversibility of the force response. They are also the main factors for the friction generation. The temperature and the indentation velocity have significant effects on the deformation behaviors of the material of the surface layer. The yield strength would increase obviously if the indentation velocity is greater than 10 m/s.（3）A method to evaluate the fracture toughness of coating by estimating the crack-density functionβof a Wicker''s indentation was proposed. Meanwhile a new surface treatment technology was developed using non-equilibrium plasma.（4）A MD-FE hybrid method and corresponding software was developed to analysis the tribological behaviors for multiplayer system.

研究主要内容和结果有：（1）得到指导梯度膜设计的几个准则：控制膜层厚度与接触半径比在0.8左右为宜；适当增加梯度层层数和顶层弹性模量，有利于提高抗屈服能力和改善界面处的应力状态；（2）通过对嵌入和滑动摩擦过程的分子动力学模拟，发现表层产生一个与宏观连续介质的塑性流动方向观测一致的45 方向位错；位错造成的不可逆变形和表面的原子堆积，是力的响应不可逆性的原因，也是构成摩擦力的主要因素；温度和嵌入速度对材料变形特性有显著的影响，当嵌入速度大于10 m/s时，屈服强度明显增加；（3）提出压痕裂纹密度系数β半定量判定膜层断裂韧性的方法；并开发出表面强化新工艺；（4）开发出分析表面摩擦学特性的MD-FE复合模拟方法和相应模拟软件。

Seventh, it is necessary to understand the irreversibility of certain policies

第七，要了解到某些政策的不可逆转性。

And morning brings only the irreversibility of loss.

清晨带来的只有无法挽回的损失。

We haven't seen that irreversibility.

我们没有看到那种不可逆性。

The investment under the market economy has the characteristics of uncertainty, irreversibility and competition.

期权博弈理论是当今管理科学领域的研究热点之一。

It is the change from an ordered arrangement to a disordered arrangement which is the source of the irreversibility.

从有序的排列到无序排列的变化是不可逆性的起源。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。