The mechanism of transmit heat and the calculation model of the thermal conductivity of the soft polyurethane foam have been discussed and the affect factors of the thermal conductivity.

讨论了聚氨酯软泡沫塑料的隔热机理和导热系数计算模型，对影响隔热性能的因素，如温度、密度、挤压、吸水率、环境压力等进行了分析。

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The invention improves the conductivity, thermal stability, tensile strength and heat conductivity of the inner lead, has high producing efficiency and reduces the cost.

本发明提高了半导体器件内引线的导电性能、热稳定性、抗拉强度和导热性能，生产效率高，降低了成本。

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The testing method of soil thermal conductivity is introduced. The testing system of soil thermal conductivity is designed according to the reverse solution of heat transfer model.

介绍了土壤热导率的测试方法，根据传热模型反解法设计了土壤热导率测试系统。

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Because the two materials exhibit a high thermal conductivity, they allow the device to cool more efficiently while distributing said heat -- 25 percent quicker than the pure copper in many pieces of tech.

ENGADGET: NC State researcher finds more efficient way to cool devices, looks to cut costs too