查询词典 adiabatic

In this paper, we introduced the concept and the property of the adiabatic geometricphase and non-adiabatic geometric phase.

我们在本文中详细介绍了几何相位包括绝热相和非绝热相的基本概念和性质。

We calculate the vertical and adiabatic ionization energies, vertical and adiabatic electron affinities of asparagine conformers.

我们计算了天冬氨酸的垂直和绝热电离能、垂直和绝热电子亲合能。

The following points are emphasized:The operation models of adiabatic and diabatic distillation have been set up and the operation block, thermodynamics model and mathematical model in the simulation have been determined as well;(2)Based on the simulation and exergy analysis with Aspen Plus program, shortcut distillation design—DSTWU model and rigorous distillation design—RADFRAC model, the author has determined the heat duty, exergy losses and the distribution of exergy losses along the adiabatic column, which will help the simulation and optimization of the diabatic distillation;(3)Diabatic distillation under various operation conditions has been simulated by using energy balance method and exergy analysis;(4)How the different mixture and the various degree of separation, number of trays and feed location influence exergy saving in diabatic distillation have also been discussed;(5)On the basis of the total exergy losses along the column, different schema of the heat transfer distribution along the column have been compared and analyzed;they can be classified in three categories: heat duty equipartition approach, empirical approach, separation degree matching approach. In conclusion, different heat transfer distribution along the column will have effect on total exergy losses. In particular, most satisfactory results have been obtained by using separation degree matching approach. In order to diminish the exergy losses, heat transfer distribution should meet the needs of the request of separation degree.And on this premise, the author makes his suggestion in increasing the proportion of heat supplied to the tray with minimum exergy losses and decreasing the proportion of heat supplied to the tray with the maximum exergy losses.

本文对透热精馏过程进行了模拟并对其节能效果的影响因素做了较为全面的分析和深入的研究，主要研究内容如下：(1)建立了常规精馏和透热精馏过程的模拟操作模块、热力学模型以及数学模型；(2)利用化工模拟软件Aspen Plus并分别采用DSTWU简捷模型和RADFRAC严格计算模型对常规精馏进行模拟计算和有效能分析，确定常规精馏塔的公用工程热负荷、有效能损失及有效能损失在塔内的分布，为透热精馏的模拟和优化提供数据参考；(3)对不同物系在不同分离度条件下进行透热精馏的模拟，分别采用能量衡算法和有效能分析法进行计算和分析；(4)探讨了各种因素如物系的选择、不同分离度、塔板数、进料位置对透热精馏节能效果的影响；(5)以全塔总有效能损失为比较基准，对热量在塔内的三种分布方案即热负荷平均分配法、经验法和分离度匹配法进行了对比分析并得出结论：塔内热量的不同分布方案对于全塔总有效能损失会产生影响，其中以分离度匹配法的节能效果最为理想，为减少有效能的损失，应使塔内的热量分布满足各塔板的分离度要求，并在此前提下，尽量减小有效能损失大的塔板的热负荷和增加有效能损失小的塔板的热负荷。

The results show that dynamical ductil-ity dominated final velocity of fragments. During tube expansion, the shear fracture appears preferentially a-long the adiabatic shear bands under positive stress, so the adiabatic shear band determines the size and shapeof fragments. Though the fragmentation behaviour of medium carbon Si - Mn bainific steel is close to that ofsteel 50SiMnVB, medium carbon Si - Mn bainitic steel is an ideal candidate material for the tubular bombs be-cause it is better in dynamical ductility, which can enable the tubes to gain high speeds before fragmentation.

结果表明：材料动态塑性是决定破片最终速度的主要因素；圆管膨胀时外表面形成以剪切为主的裂纹，并向内扩展，接近内表面的绝热剪切带伴随着圆管的膨胀而扩展，并未出现失稳现象，但在正应力的作用下成为优先的断裂通道、决定破片的尺寸和形态；中碳Si-Mn贝氏体钢与50SiMnVB钢的破碎性能相近，但贝氏体钢动态塑性很更好，破碎前的膨胀量较大、更有利于提高破片初速，是弹箭比较理想的候选材料。

The wet adiabatic lapse rate (60C/km) is thus less than the dry adiabatic lapse rate.

湿绝热垂直递减率是小于干绝热垂直递减率。

The design scheme considers the circuit structure in transistor level by using the principle of adiabatic computing, which can effectively avoid the inevitable problems of metastability and asynchronism signals treatments in FIFO based on conventional complementary metal oxide semiconductor logic. A 16-depth adiabatic FIFO based on CTGAL was achieved.

该方案运用绝热计算原理，基于晶体管级设计电路，有效避免了传统CMOS逻辑的FIFO必然遇到的亚稳态和异步信号处理等难题，实现了深度为16的基于CTGAL电路的绝热FIFO结构。

The concept of adiabatic approximation and adiabatic invariant came from research on obit deformation in classical mechanics.

然而一直以来，物理学界对QAT的适用性问题上都存在一些模糊的认识。

Adiabatic throttle coefficient is used to denote adiabatic throttle effect of real gas.

实际气体的绝热节流效应通常用绝热节流系数来表示。

With these theories, we can estimate the error of adiabatic approximation and calculate the evolution of the quantum states in cases when quantum adiabatic approxi-amtion is not appliable.

利用非绝热跃迁理论，人们还可以在许多情况下有能力解析的估计绝热近似产生的误差。

It is shown that adiabatic shearing fracture is main reason of resulting in the plugging occurrence. The residual adiabatic shear bands in the destroying process, which distribute reticulately from the surface of penetrated hole to internal area, is very wide. It is easy to result in falling of fragments....

冲塞的发生以绝热剪切破坏为主，靶板中残留的剪切带比较宽大，由弹孔表面向靶板内延伸，呈网状分布，易造成碎块的脱落，另外，绝热剪切带的形成与塑性力学静载下滑移线的形成密切相关，其走向与滑移线的方向基本一致

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。