热扩散

The analytic studies of the MITA procedure based on dynamics and the function of thermo-diffuse and thermo-conduction combine these three physic field systematically. Compared with situation function with thermo-balance method, the analytic studies based on dynamics have less parameters approximation, and more precision. Meanwhile, the discipline of the microwave energy absorbed by tissue is should studied also.

基于动力学和热扩散、传导方程的微波热致超声波机制解析解的分析，将上述三类物理场有机地结合在了一起，与基于热平衡的状态解析分析相比，这一方法更少地对三物理场所涉及的参数进行近似，能更准确地反映微波热致超声波机制。

The DTC is just limited by the thermal transition properties of the films, and is the function of the thermal diffusion constant.

LITV信号的衰减时间仅决定于薄膜材料的热传导性能，是薄膜热扩散系数的函数。

This paper mainly studies on the thermal diffusivity and thermal conductivity by PTR method.

本文主要用光热辐射技术理论来研究材料的热扩散系数和热导率。

Based on the obtained the temperature, the electron density of the cloud lightning channel by combined with the method of the spectra diagnose and Saha equation.

论文摘要：用无狭缝光栅摄谱仪在西藏地区获得了云闪放电通道的光谱，在已经获得云闪放电通道温度的基础上，利用光谱诊断方法结合Saha方程得到了云闪放电通道的电子密度；将空气等离子体的输运理论应用于闪电放电通道特性的研究，首次计算了三次云闪放电通道的电导率、电子的热导率和热扩散系数。

The current equations are derived and the effect of the magnetic field on the current is discussed.

同时讨论了部分游离的等离子体中的电流、扩散和热扩散对电流的影响以及磁场对扩散的影响。

The results show that carefully controlling of deposition conditions and final polishing of the specimens enable us to deposit antireflective infrared diamond coatings on silicon substrate. In order to investigate the thermal properties of diamond coatings nondestructive photo-thermal radiometry method is used with computer simulation and data analysis to get thermal diffusivity and conductivity of the specimens.

本文用光热辐射计量学（Photo-Thermal Radiometry，PTR）方法对于金刚石薄膜的热学特性作了研究，用计算机模拟了热波在样品中的传播过程，用非接触无损检测方法测量了样品，并对测量结果用计算机作数据分析，计算获得金刚石薄膜的热扩散系数及热导率，为金刚石薄膜在热学方面的应用打下了基础。

The one is how the long-range order of atoms can be restored when atomic diffusion takes place, and the other is how the theoretical expressions in their present form, more than one self-diffusion coefficient parameter, can be applied to experimental results directly.

一是如何正确理解原子的热扩散运动与合金中原子有序排列之间的矛盾；二是能否将扩散系数以外的其它理论参量与原子跳跃迁移的相关实验测量联系起来。

Experiment result indicates that the RFHP has greater thermal diffusivity, and can reduce junction-to-case thermal resistance of the module. When power density is 176W/cm^2, the temperature difference on the condensation section is within 3℃. The longer time period for the chip to reach the same temperature during RFHP module start-up can avoid power uprush and raise the ability of resisting thermal impact.

结果表明：与铜基板相比，径向平板热管具有更高的热扩散能力，可降低模块的结壳热阻；热管冷凝面具有良好的等温性，当芯片功率密度为176W/平方公分时，热管冷凝面的温差在3℃以内；热管模块启动过程中芯片达到相同温度需要的时间长，有利于克服功率"飙升"和提高功率器件抗热冲击的性能。

Then we studied the photothermal deflection on membrane with high transparence for the first time. When the product of the thermal conductivity and thickness of film is correspond to that of substrate, the thermal conductivity and diffusivity of film could be measured by photo-thermal deflection method.

然后，第一次探讨了透明性好的带衬底的薄膜材料的光热偏转理论，讨论了只有在薄膜热导率与厚度的乘积与衬底的热导率与厚度的积相比拟时，可以使用光热偏转方法测量薄膜的热导率和热扩散率。

Using the relative reflection as weighting factor, the weighted mean of the surface albedo over Dunhuang Gobi in typical arid region is calculated and its values are 0.255 ± 0.021. After canceling the interference of the buildings, the mean values of the roughness length averaged with logarithm is 0.0019 ± 0.00071 m. After removing the influence of the oasis, the soil wetness factor computed with data under condition of no precipitation is 0.0045. After removing the influence of the precipitation .the mean values of the soil heat capacity over Dunhuang Gobi in typical ac-id region is 112 × 10 ~6 m~(-3)K~(-1), a bit smaller than the values observed i n HEIFE. But the soil heat diffusivity and conductivity are about one of those observed in HEIFE. The soil water content over Dunhuang Gobi in typical synoptic condition is very little and does not exceed 1% basically.

并且利用相对反射为权重加权平均，计算得到典型干旱区敦煌荒漠戈壁的平均反射率为0.255±0.021；剔除建筑物干扰后，利用对数平均法计算的粗糙度长度平均值为0，0019±0.00071 m；剔除绿洲影响后，用无降水影响的资料确定出土壤湿度影响因子为0.0045；剔除降水影响后，用观测资料计算的敦煌典型干旱区荒漠戈壁的热容量平均值为1.12×10~6m~（－3）K~（－1），比&黑河试验&在戈壁和在其它沙漠观测的有关值略小一些，但热扩散率和热传导率都比&黑河试验&在戈壁观测的值小一倍左右；观测的敦煌戈壁典型天气条件下的土壤含水量非常小，基本上不超过1％。

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。