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辐射热

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Light output analysis tests character of spectrum radiate of pyrotechnic mixtures and analyses wave band distribute of light by comparing different static blaze spectrograms of the pyrotechnic mixtures. Screen out the better pyrotechnic mixtures according to request of pumping source. Press experiments in airtight erupt container experiment, which simulate the circumstance that pyrotechnic mixtures deflagrate in quartz pipe, realize the press influence to the quartz pipe wall and the disciplinarian of axes press variety. Apply these pyrotechnic mixtures to Nd:YAG lasers as the pumping source and compare pumping efficiency of different pyrotechnic mixtures. Pumping efficiency is an important standard which checkout if these pyrotechnic mixtures are the better pumping source. Sensitivity experiment analysis incarnate security of pyrotechnic mixtures that is the essential parameter in the process of design, manufacture and use.

通过对烟火药的热分析(爆热分析、DTA、TG),了解备选烟火药反应过程中的能量输出特性及反应过程中的物理、化学变化规律;光输出分析实验对烟火药配方光谱辐射特征进行测试,比较其静态火焰光谱图,分析不同烟火药剂光辐射波段分布特征,根据激光泵浦源的辐射要求,进而筛选更符合激光泵浦源药剂要求的烟火药;模拟烟火药在石英管中爆燃环境的密闭爆发器压力分析实验反映了烟火药在石英管中反应时对管壁的压力影响以及管内轴向压力变化规律;将烟火药作为泵浦源应用于Nd:YAG固体激光器,比较不同烟火药的泵浦效率,作为检验烟火药是否适合作为激光泵浦源的重要标准;感度实验分析体现了各种烟火药的安全性,是烟火药设计、制造和使用的必要示性数。

By using infrared thermal radiation , capillary vessel is made to distend in body deep tissue, blood circulation accelerates, ulteriorly speed up the human body's absorption of medicine, accelerate metabolism, ameliorate organic nutrition and finally achieve the aim of therapy and health care.

红外线热辐射:通过红外线热辐射使人体深部组织的毛细血管扩张,血液循环加快,进一步加速人体对药物的吸收,促进新陈代谢,改善组织营养,从而达到治疗保健的目的。

In the analysis, firstly, the flux boundary condition is used to simulate the frictional heat resource between wheel and rail. The non-steady heat transfer between the contacting surfaces of the wheel/rail, heat-convection and radiation between the wheel/rail and the ambient were all taken into consideration. Therefore, a heat coupling model of the wheel/rail in rolling/sliding is put forward to calculate the frictional temperature rise in the wheel and rail. Secondly, after the temperature distribution of wheel/rail, due to friction, is calculated, substitute the thermal load with equivalent fictitious body force and boundary distributed force loaded on the nodes of the corresponding elements. The wheel-load is applied to the center of the wheel.

首先,用热流边界条件模拟轮轨接触界面的摩擦热源,考虑轮轨间的非稳态热传导、轮轨自由表面与环境的热对流、热辐射的影响,建立轮轨滚动接触热耦合有限元计算模型,分析计算轮轨滚、滑工况下的摩擦温升;其次,以求得的轮轨温度场结果作为求解轮轨应力场的已知条件,轮载以集中力形式直接加载于轮心处,将摩擦温升引起的热载荷等效为假想体力和热边界面力,施加于相应的单元节点上,建立了轮轨热—机械载荷耦合作用的热弹性平面应力模型,分析热—机械载荷作用下的轮轨应力场。

The asymmetrical radiation of heat remains a prime suspect, as presented at the second ISSI meeting in Berne, Feb 2007. A presentation at the APS April 2008 meeting suggests that differential heating may account for as much of 1/3 rd of the observed acceleration.

2007年2月在伯尔尼举行的第二届ISSI会议上,人们仍然认为非对称的热辐射是最主要的嫌疑。2008年4月的APS会议上,一个报告指出这种热辐射的方向差异可能产生观测到的1/3强的加速度。

The phenomena of boiling over of burning oil products in oil lank was analyzed, and conditions for boiling over were expatiated, heat radiation intensity of burning flame when boiling over was also studied.

分析了油罐火灾中燃烧油品的沸溢现象,阐述了沸溢发生的条件,研究了沸溢时火焰的热辐射强度,研究表明沸溢时火焰温度平均升高300℃左右,火焰平均热辐射强度是沸溢发生前的2.5-3倍。

What's more, energy can be passed with the mechanical wave; namely the discharged energy could spread outside, so what we called thermal radiation of light take place.

又因为能量能够随机械波进行传递,即放出的能量能够向外传递,所以也就出现了我们所说的热辐射现象,可见的热辐射即是我们所说的光。

This thesis developed physics model of radiant panel heating and cooling room based on previous studies. Computational fluid dynamics software FLUENT was applied to study the thermal environment of radiant panel heating and cooling room. The distributions of temperature and velocity of rooms of radiant floor heating and cooling, radiant ceiling heatingand cooling and radiant wall heating and cooling are gained.

本文在总结前人经验的基础上,分别建立了辐射板采暖和辐射板供冷房间的物理模型,利用商业软件Fluent对采用辐射板采暖系统和辐射板供冷系统房间内的热环境进行了模拟研究,分别得到了辐射板布置在地板、墙面和顶板三种不同方式下的采暖和供冷房间内的温度和速度分布情况。

Floor heating systems have been used since ancient times due to their advantages over other heating systems. Previous studies are mainly on the floor heating systems using hot water. There is insufficient study, to the author's knowledge, about floor heating systems using electric heating cords. In the thesis, the heat-transfer characteristics and comfort for the floor heating system and ceiling panel heating system using electric heating cords were investigated.

地板辐射采暖系统与其它采暖方式相比,因许多优点它已有多年的使用和发展历史,在相关研究文献中,大都采用低温热水地板辐射采暖为研究对象,相对而言,电热地板辐射采暖系统的研究文献比较欠缺,为此,本文研究了电热地板辐射采暖和顶棚辐射采暖两种形式下的传热特性和室内热舒适性。

Based on it, the computation method of steam temperature deviation of superheaters and reheaters and the inversion method of their wall metallic temperature in furnace are deduced, and applied in several boilers.

本文通过对过热器和再热器烟气侧对流与辐射复合换热过程的分析,建立了过热器和再热器各受热管段烟气侧局部传热的物理数学模型,导出了适用于大型电站锅炉过热器和再热器的出口汽温计算及炉内管壁金属温度的反演方法。

In order to analyze the relationship between radiation heat transfer and thermo-efficiency, the radiant heat flux of the cylinder and thermal balance are measured. The results show that: The reduction of thermal radiant flux in the cylinder is the primary cause of the improvement of thermal efficiency of the engine.

为了研究发动机热效率和辐射传热量变化之间的关系,利用辐射传感器测量了柴油机燃用DMC柴油混合燃料后缸内辐射传热量,进行了热平衡实验,分析结果表明,添加含氧燃料后,发动机缸内辐射传热量的减少是导致其有效热效率的提高的主要原因。

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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意,我建议我们在价格上大家各让一半。

After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.

一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。