查询词典 convection heat transfer

The efficiency of the system is maximized for given heat supplying and total heat transfer area of the system.

在给定的供热率和系统的总传热面积下计算系统的最大效率。

Cooling, however, is defined as a heat transfer unit operation used for the removal of heat.

冷却，然而，是指为传热单元操作用于去除热。

Heat pipe is a highly effective heat transfer unit, its constitution and mechanism are presented.

热管是一种高级导热元件，介绍径向热管的结构及其工作原理。

And the results indicate: the ratio of fin spacing to fin height exerts influence on total resistance of heat sinks in significant measure, there are figures at the end of this paper, that plot heat transfer coefficients and resistances when fin dimensions amount to different values.

计算结果表明：肋片间距与高度的比值对散热器热阻的影响较大，在图中绘制出了不同肋片尺寸对应的散热器对流换热系数和热阻。

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The intermittence helps full diffusion of terrestrial heat to promote temperature uniformity and boost underground heat transfer load.

间歇时间可能改变温度变化的规律和趋势，实现良好的热泵机组运行工况以及系统的配置运行。

Second, a 3D unsteady-state numerical model of heat transfer in laser circular cutting of pipe was set up for the first time, and the kerf width, the cut front profile, the temperature field and the heat affected zone were calculated by using the model.

其次，首次建立了管材激光圆周切割传热过程的三维非稳态温度场计算模型，并计算了不同管径和切割速度条件下的切缝宽度、切割前沿及其相邻基材的温度场和热影响区大小。

The key points of research and development of latent heat storage are selection or compound of high effective phase change materials, and enhancement of the heat transfer performance of storage systems.

研究和开发利用相变储热的关键是选择或合成高效的相变材料和增强相变储热系统的传热性能。

LED Cooling ; Flat Heat Pipe ; Capillary microgroove ; Phase-change heat transfer ; Numerical Simulation

辽宁省自然科学； LED散热；平板热管；毛细微槽；相变换热；数值模拟

By using a wide field stereo-microscope and a CCD video camera system,the axial liquid flow and dryout pointin vertical rectangular capillary microgrooves heat sink were observed and measured under pure evaporation heat transfer conditions.An experimental study of the influences of microgroove geometric parameters and working liquids on wetting height was conducted.

利用宽视场体视显微镜和CCD摄像系统对纯蒸发换热情形下竖直放置的矩形毛细微槽群热沉中的液体沿微槽槽道方向的流动情况和干涸点高度进行了观察测量，并对微槽几何尺寸、工质等因素对润湿高度的影响进行了实验研究。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。