热扩散

Thermal diffusivity including repair and multi-scale approach.

包括热扩散修复和多尺度方法。

Aiming at the physical model inapplicability of flash method to measure thermal diffusivity of semi-transparentmaterials, a new physical model was proposed. In the model, according to the permeance of materials, the pulse laserabsorption of materials is of exponential type, and the authors establish a relevant differential equation and get a analyticalform.

针对传统的闪光法在物理模型上不适于用来测试半透光物质热扩散率的问题，提出了一个新的物理模型，该模型根据物质的透光性，确定样品对脉冲激光的吸收为指数型，建立了相应的微分方程并求得其解析解。

Based on systematic open flume flow experiments, this paper investigates the basic lows of thermal diffusion coefficients in water flow.

在系统的明槽水流试验基础上，本文探讨了水流热扩散系数的基本规律。

In order to facilitate quantitative analysis, a rational model of physics for a rise inverse sine structure of 1×2 S-branch power splitter in glass is proposed. In thermal ion exchange, the distribution of normalized refractive index of two-step ion-exchanged optical power splitter and the distribution of splitter refractive index of different exchange time have been gotten.

为了便于定量分析，采用了一种上升反正弦S型分支光波导系统的物理模型，得到了在热扩散条件下两步离子交换光功分器波导区的归一化折射率分布和在不同交换时间所形成的玻璃波导折射率分布。

Measurements of thermal diffusivity of opaque composite materials by photothermal radiometry technique .

激光光热辐射技术测量不透明复合材料的热扩散率。

Laser photothermal radiometry technique ; complex material ; thermal diffusivity

激光光热辐射技术；复合材料；热扩散率

In order to realize efficient conversion of methane, thermal diffusion column reactor was used to dehydrogenative coupling of methane.

为了实现甲烷的有效转化，使用热扩散管反应器进行了甲烷的脱氢偶联反应。

In this study, the actual temperatures in different solder joints were below 100°C, which did not induce magnificent atoms thermodiffusion to submerge electromigration.

数值模拟表明，电流密度聚集是产生电迁移失效的根本原因，焊点的实际温度低于100°C，避免了高温下原子热扩散对电迁移的干扰。

Resently, by considering the heat diffusion, rigorous thermal and mechanical boundary condition, arbitrary laser intensity, and volumetrical heating, someone already made a real picture of reaction of laser with material and the theory comparable to practice.

近年来，已有人通过考虑热扩散、准确的热和机械边界条件、随时间任意变化的激光加热强度以及体吸收等，使得较真实的激光与材料相互作用图象得以展现，理论与实验结果的比较成为可能。

There are many heaves and concaves which can be observed on the surface of the layer, and so they make the surface of the layer rough. The surface of the layer is rich in Ti, but gradually the Ti decreases. It shows that The combine of the layer with the base is good, which result from the heat diffusing and chemical metallurgy reaction.

涂层表面由许多凸起和凹坑组成，表面稍粗糙，这是脉冲放电的工艺特点决定；涂层内部Ti元素由表层至与基体界面处呈梯度分布，并且Ti元素也渗入基体一定深度，说明结合良好，为冶金反应和热扩散的结果。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。