温度系数

With theoritical analysis and experiment measurement and test, the paper discusses the influence of External Thermal Insulation Compound system on wall dewing .

通过对墙体结露条件的理论分析与试验测试，讨论了外墙外保温体系对墙体结露的影响，结果表明外墙外保温体系能够增加墙体热绝缘系数改善墙体的温度分布避免外墙体内表面结露和内部结露，保证保温材料的粘结强度。

A7800 Features: 10 Mb s Manchester encoding decoding with receive clock recovery Patented digital phase locked loop decoder re- quires no precision external components Decodes Manchester data with up to g18 ns of jitter Loopback capability for diagnostics Externally selectable half or full step modes of opera- tion at transmit output Squelch circuits at the receive and collision inputs re- ject noise High voltage protection at transceiver interface (16V) TTL MOS compatible controller interface Connects directly to the transceiver cable A7800 Maximum Ratings: A7800 Pinout:· NPT IGBT technology · low saturation voltage · low switching losses · switching frequency up to 30 kHz · square RBSOA, no latch up · high short circuit capability · positive temperature coefficient for easy parallelling · MOS input, voltage controlled · ultra fast free wheeling diodes · solderable pins for PCB mounting · package with copper base plate

A7800特点： 10兆s曼彻斯特编码与接收时钟恢复专利解码数字锁相环解码器重新奎雷斯没有精确数据的外部元件曼彻斯特解码高达全部G18抖动纳秒环回功能用于诊断外部可选的一半或整步模式的歌剧和灰在传输和接收碰撞投入重新ject高噪音在收发器接口（16V的）马鞍山的TTL兼容控制器接口电压保护输出静噪电路直接连接到收发器的电缆 A7800最大额定值： A7800引脚说明：·不扩散核武器条约IGBT技术·低饱和电压·低开关损耗·开关频率可达30千赫·平方米RBSOA，没有锁定了高短路能力··正温度，便于parallelling·马鞍山消耗系数，电压控制·超高速免费·印刷电路板焊接的引脚安装·铜底板包续流二极管

Then 4 approaches are used for solving semiconductor thermoelectric problems are proponed:(1) solve basic semiconductor equations directly,(2) solve heat transfer equation with the fitting expressions of thermoelectric transport,(3) approximation of relaxation interval time,(4) characteristic temperature of thermoelectric-pile method.

随后，提出了求解半导体热电问题的4种方法：①直接求解半导体方程组②驰豫时间近似法③利用温差电输运系数的拟合式来求解导热方程④热电堆特征温度法。

In this thesis, the phase diagram of Zn-Al binary system on 10~69.5 w% was reinvestigated by using differential scanning calorimeter, X-ray diffraction and pushrod dilatometer. The process of isothermal transformation during the aging of high-Aluminum-Zinc-based alloy was studied by using differential scanning calorimetry, and the aging behavior of the alloy was analyzed at the aspect of thermal analysis kinetics. The change of microstructure which the alloy was being heated was observed on high-temperature metallurgical microscope. The microstructure and wear-friction properties were compared among the alloys treated with several different heat treatment processes, and a model for heat treatment processes was proposed based on artificial neural network,so as to predict the relationship between friction coefficient and parameters of aging treatment such as aging temperature and time.

本文采用高温X射线衍射、示差扫描量热分析、热膨胀等方法重新测定含锌量范围为10％～69.5％的Zn-Al系二元相图，利用示差扫描量热分析法，研究高铝锌基合金时效等温转变过程，并从热分析动力学的角度分析高铝锌基合金合金时效行为；使用高温金相显微镜观察合金加热时的组织变化；比较几种不同热处理工艺对高铝锌基合金显微组织与耐磨性能的影响并利用人工神经网络建立高铝锌基合金热处理工艺模型，预测合金摩擦系数随时效温度及时间变化规律。

Based on experiment data, equivalent gray absorption coefficient s at various gas temperature distributions are calculated using inverse analysis,which combines the zone method and the minimization of a performance function stylizing the conjugated gradient method.

以实验数据为基础，采用区域法与求目标函数最小值的共轭梯度法相结合的方法反演计算了不同烟气温度下的当量灰吸收系数。

Densities and viscosities of solutions were used to calculate excess molar volumes and excess viscosities respectively.

混合溶液的粘度随温度的关系用Andrade公式进行了关联，各组成关联的相关系数接近于1。

The relationships between the solubility and activity coefficient of CaO in molten salts and temperature are obtained through linear fitting.

通过线性拟合，得到了CaO在熔盐中的溶解度和活度系数与温度的关系。

Moreover, the contribution of the above three kind of interaction on the activity coefficient of solvent as well as their dependence on the temperature and liquid composition was analyzed using the regressed model parameters, which laid a foundation for the further improvement of the model.

另外，利用关联结果，分析了上述三种作用对溶剂活度系数的贡献随温度和溶液组成的变化规律，这为进一步完善模型奠定了基础。

Therefore, the knowledge of distribution of air velocity, surface heat transfer coefficient and temperature inside all the air regions in electric machine is very important.

因而，了解发电机转子风道中各空气区域内的速度分布、传热系数变化及温度分布是非常重要的。

The effect of main process parameters on ammonia removal and mass transfer coefficient was investigated.

在氨的吹脱过程中，液相温度和空气流量是影响吹脱过程中氨体积传质系数的主要因素。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。