查询词典 conductivity for heat

thermal conductivity ; thermometric conductivity ; coefficient of energy storage ; heat resistance ; motor temperature rise ; motor insulation structure

本文的目的是将建筑材料的热传导基础理论用于电机、电器的热场设计之中，加快我国

The conductivity of the treated carbon black gradually increases by sequence of heat treatment、 KOH treatment、 vapor treatment、 CO_2 treatment at high temperature. The conductivity of the carbon black treated by CO_2 is one time more than that of the untreated.

高温改性炭黑的导电性依热处理和KOH处理、高温水蒸气处理、高温CO_2处理而逐步增大，其中CO_2处理的炭黑比未处理炭黑的导电能力高出一倍以上。

At first,the limitation of the general heat conduction equation is discussed and then,nonlinear heat conduction equations are derived,when we consider that thermal conductivity,specific heat capacity and density are dependent of temperature.

研究了线性情形中热传导方程的局限性，在此基础上考虑到热传导方程中导热系数、比热容、密度与温度的关系，导出了非线性热传导方程，并求出了几类非线性热传导方程的孤波解。

The transfer of heat from heat fluid to its adjacent rocks is approximatly regarded as a stable process of thermal transmission in which heat is mainly transmitted in the way of thermal conductivity.

热流体对围岩的传热可以近似地认为是一种以热传导为主要传热方式的稳定传热过程。

The relative conductivity of leaves, ultrastructural changes of mesophyllous cells under heat acclimation and heat stress, the differences in gene expression of leaves under hest shock can be used as physiologic, cytologic and molecular biologic indexes respectively for evaluating heat tolerance.

在热锻炼和热胁迫过程中叶片相对电导率、叶肉细胞超微结构的变化，以及热击条件下叶片基因表达差异，可分别作为耐热性评价的生理学、细胞学和分子生物学指标。

Using cement to prepare the sensible heat storage material,and it is for improving the capability of material by interfusing some matters which have large heat capacity and high heat conductivity.

研究表明：当铝酸盐水泥含量为10%时，材料的抗压、抗折强度能满足工业需求；材料的比热容随温度的升高先增大，在500℃时达到最大，后随着温度的升高反而降低；材料的热导率随着石墨粉含量的增加几乎成直线上升，当石墨含量为5%时材料的热导率大于1.7W/。

Using cement to prepare the sensible heat storage material,and it is for improving the capability of material by interfusing some matters which have large heat capacity and high heat conductivity.

采用水泥作为材料的胶凝剂，添加热容、热导率大的物质作为骨料来制备混凝土储热材料。

In the paper, we investigate, respectively, the unsteady transport properties of heat and moisture in enclosure under constant wall heat flux and constant wall temperature when porous particles are small and Darcy number is lower, the effect of conductivity ratio, heating conditions and other parameters on the heat transfer rate of enclosure when particles are larger and Darcy number are higher.

并分别对多孔颗粒较小时的低Da数封闭腔内的非饱和渗流与传热，及颗粒较大的高Da数封闭腔内的非饱和自然对流行为进行了数值模拟，研究了低Da数时湿分与热量在恒热流与恒壁温条件下的非稳态传递特性，高Da数时封闭腔的传热与流动特性、达西效应以及导热比、加热条件等对空腔传热系数的影响。

Experiments and researches show that the radial heat pipe is of a well-isotheral performence, satisfied heat power conductivity and high heat transfer limit(with the comparison of the unit with and without wick).

通过试验和研究表明：径向热管作为传热管具有良好的等温性、功率传输性能和较高的传热极限，并比较有、无吸液芯的性能差别，径向热管换热器已广泛用于硫磺制酸余热回收装置省煤器。

Shadow effect can not be neglected for thermal analysis of spacecraft,Accroding to the angle between solar light and antenna orbit plane and its orbit location,analytical geometry method was used for accurately calculating solar radiation heat flux distribution of reflector surfaces.To analyze the temperature field under heat flux,the formulations of net radiation flux density between two gray elements and the net flux density of gray surface under external thermal flux were deduced.Based on the characteristic of space environment,the nonlinear temperature distribution in transverse direction of reflector shell self radiation were considered,the finite element formulations were given for orthogonal material layered shell by Galerkin method.A layered element including a inner heat source layer was proposed,and the finite element formulation expressed by DOF of the inner heat source layer were put forward with temperature and heat flux boundarys between adjacent layer.

单馈反射面赋形天线是未来星载天线发展的一个重要形式，分析了基于物理光学、几何光学和几何绕射理论的理想反射面辐射场；介绍了基于几何光学的反射面天线赋形方法；针对赋形过程中辐射场的快速分析要求，比较分析了基于物理光学的Fourier-Bessel和Jacobi-Bessel级数展开方法以及GB展开分析方法；利用GB展开快速分析方法在20GHz频率下对0.6m口径的天线进行赋形分析，实现中国大陆的30dB增益覆盖，通过数值计算研究了固定增益期望下的口径尺寸随频率的变化，以及频率为20GHz的不同尺寸天线赋形后的覆盖目标区域最大增益的变化情况。

After oxidation, pH value of the surface of carbon black has a specific relation with the volatile content.

氧化后炭黑表面的pH值与挥发分之间有一定的关系。

Knowing that such a person is warped and sinful; he is self-condemned.

因为知道这等人已经背道，犯了罪，自己明知不是，还是去做。