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In order to reduce error of Nu number at large Ra number and thermal diffusivity, we analyze truncation error of corresponding heat-transfer equation and introduce an adjusting parameter in the equilibrium distribution function.

针对一二阶精度模型在Ra数极高或热传导系数极大时,Nu数的计算与经验值相比出现较大偏差,分析LBM对应宏观热传导方程的截断误差后,在平衡分布函数中引进一个调节因子。

To examinate the thermal properties by TGA、DSC and figure out the maximum decompose temperature which survey the range of liquid crystal temperature. We synthesize conjugated polymer successfully and these emitted blue fluorescence. Hope this experiments will supply well-contribution in field of organic light-emitting diodes.

以TGA、DSC测定其热性质,并了解到由TGA的5%热重损失温度再进行测出液晶温度范围,我们成功的合成出具有良好的加工性的共轭性分子,发光性质都出现在蓝光领域,愿在有机发光二极体的领域上有重大的贡献。

That day is raining I to remember that you put on a body's white gym suit actually not to have spate, you gained ground raise the self-satisfied corners of the mouth, the hand have been pulling up the hair:"the fool you forgot that the belt umbrella each time wants to take my advantage, this you thought that also has that Jan!"

那天下着一样的小雨,你撑着伞搂着我发抖的身体,第一次我和你这么近距离,第一次我感觉你的呼吸,第一次我看清你的眼睛,第一次我感受你热热的身体,我开始屏住呼吸,一种极速的心跳正在开始!

The heat exchange with the reservoir is good and the temperature difference is only small between the bottom and top of the reservoir.

热储内部的热交换良好,热储顶部和底部的温度差极

The influence of mechanical activation on the crystal structure and leaching behavior of hemimorphite was investigated by SEM, particle distribution analysis, TG-DSC analysis and XRD analysis.

通过浸出动力学实验、扫描电镜分析、粒度分析、热重-差热分析、X射线衍射分析探讨机械活化对异极矿晶体结构和浸出行为影响的规律。

The characteristics of charge storage in APCVD Si 3N 4/thermal\|grown SiO 2 double layers electret films, charged by coroma were investigated by measurements of isothermal surface potential decay and thermally stimulated discharge.

利用等温表面电位衰减及热刺激放电(thermallystimulateddischarge ,TSD)方法探讨了恒栅压电晕充电经常压化学气相沉积的Si基Si3N4 和热生长SiO2 双层薄膜驻极体电荷的存储特性。

Our country firstly put forward such design principle of Qinghai-Tibet railway engineering as "lower temperature actively, reduce the heat into the subsoil, and assure the heat stability of frozen earth for the quality stability of construction", creatively adopt such corresponding measures of frozen earth construction problem as: for the poor frozen earth developing section, line should avoid as possible;for the geology of ice at high temperature and unstable frozen earth zone, the method of bridge instead of subgrade shall be adopted;in subgradeconstruction, such facilities as heat stick, rubble ventilation subgrade , rubble ventilation berm, ventilation pipe subgrade and laying heat preservation board etc shall be adopted to raise the stability of frozen earth subgrade;during the excavation of bridge, culvert , foundation pit and scouring prevention trough, creatively adopt single-tooth knapper and solve the problem of frozen earth excavation;during the construction of bridge and culvert, durable concrete and three-step maintenance method are adopted to assure the outside and inside beauty of structure.

我国在世界上首次提出"主动降温、减少传入地基土的热量、保证多年冻土的热稳定性,从而保证修筑在上面的工程质量的稳定性"的青藏铁路工程设计原则,创造性地采取了解决冻土施工难题的相应对策:对于不良冻土现象发育地段、线路尽量绕避;对于高温极不稳定冻土区的高含冰量地质,采取"以桥代路"的办法;在路基施工中采用了热棒、片石通风路基、片石通风护道、通风管路基、铺设保温板等多项设施,提高冻土路基的稳定性;在桥涵基坑、挡水埝基槽开挖中,创造性地应用了单齿破碎器,解决了冻土开挖难题;在桥涵工程施工中,采用了耐久性混凝土,采用了三步养生法,保证了结构物内实外美。

Sn with the content of 0.004% in the lithosphere is almost in presence of cassiterite and little in presence of Sn-contained sulfide. Since 1980s, the anticancer active study on organic complex compounds has attracted considerable attentions, it becomes another hot issue after the study on Pt. When time up to the year 1989, the anticancer active measurement of more than 2000 kinds of Sn-contained complex compounds have been carried out by Cancer Academy, U.S, with the results showing half of these Sn-contained complex compounds posses antileucocythemia(P388) activity. Thereafter, Sn-contained complex compounds synthesized by hydrothermal reaction also become a hot issue people focus on.

Sn在地壳中的含量为0.004%,几乎都以锡石的形式存在,此外还有极少量的Sn的硫化物。20世纪80年代以来,人们对Sn有机配合物抗癌活性的研究产生了浓厚兴趣,成为继顺铂之后又一活跃的研究热点,到1989年,美国国家癌症研究所对2000多种Sn的配合物进行了抗癌活性测定,结果表明,50%的配合物具有抗P388白血病活性,故水热溶剂热合成锡的配合物也成为人们的研究热点。

First Prize winner of 1971 Margaret-Long Competition, Pascal Rog é is famed for his transparent tone quality, demonstrated especially well in French music such as Saint-Sans and Satie.

帕斯卡·罗热是1971年马格丽特·隆国际钢琴比赛获一等奖。罗热的演奏触键精致细腻,声音清澈透亮,在表现法国印象派作品时,其轻灵雅致、朦胧与虚幻的意境极为迷人,其诠释的圣桑、萨蒂等人的作品都极有意境。

The first the relation of AD model and the energy variety of image is educed by thermal diffusion and the diffusion equations based energy flux, and proves the image processing by energy flux sufficing maximum-minimum principle, the variety of image energy is equivalent to that of image intensity.

首先通过热扩散及热扩散方程、基于能量流的扩散方程,导出了向异性扩散模型与图像能量的变化过程之间的关系,并证明了利用能量流方法获得的图像处理过程同样满足极大极小原理。

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