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Rolling force and moment are the basic technics parameter for Assel rolling mill design,but about it,s technics calculate is very poor currently.one form by dint of approximately calculate, the result unlikelihood .J·kazanecki and domestic scholar according as metal distortion superior limit,gave some formula have some worthiness,but very complexity.the author base on practicality rolling technics, gvie a simpleness calculate means.the result close to measure numerical value,supply some reference value.

轧制力、轧制力矩是设计Assel轧管机最为基本的参数,但是目前关于其工艺计算的理论还很不成熟,只能借助于近似工程计算方法求得,结果往往偏差较大。德国的J·kazanecki和国内的一些学者提出了利用金属塑性变形场的上界法求解上述参数,具有一定的参考价值,但其数学计算相当繁杂。作者从轧制工艺实际出发,遵循塑性力学的基本原理,给出了简便易行的计算方法,具有重要的实际意义。

Result The results showed that for the causes why tuckahoe cultivation field cann't be used successively, the change of organic matter, available N, available P, available K in the soil could almost be excluded, the decrease of pH value was likely one. The number of Blattodea increased in evidence, but the further study must be required to elucidate the causality.

结果]结果表明,对于茯苓栽培场不能连续使用的原因,有机质、速效氮、速效磷和速效钾的变化可以排除;pH值有明显下降,推测是重要因素之一;蜚蠊目昆虫数量有明显增加,其因果关系尚需进一步研究。

In this paper, we firstly make some qualitative analysis to Lorenz critical chaotic system, and then lead it to the corresponding unstable equilibrium point and periodic orbits in terms of the linear state feedback approach. Then we make a lot of simulations which indicate this method to be feasible. Fractional-order system, as well as Lyapunov exponent, has been used as a powerful tool for the quantitative study of chaotic systems.

本文首先对Lorenz临界混沌系统进行基本定性分析,然后利用线性状态反馈方法将其制到相应的不稳定的平衡点与周期轨道上来,并证明了被控制的Lorenz临界系统是全局渐进稳定的,并对取得的结果作了大量的数值模拟,模拟结果证实该控制方法简单有效可行。

24H treatment group compared with 24h model group: the density of light of HSP70 of the group increased and which of TGF-β〓, is not different with the model group; the density of the light the HSP70 of the Baicalin group increased and which of it the TGF-β〓, increased with the model group; the density of light of the Concha Margatitifera Usta is not different and which of TGF-β〓, increased with the model group; the density of light of the Cholic Acid group is not different and the density of light of it of TGF-β〓 increased with the model group; the density of light of the Hefang Group is not different and which of TGF-β〓 is not different than the model group.

合方治疗脑缺血12小时组缺血脑组织TGF-β1光密度值较缺血12小时模型组无显著性差异(p>0.05)。本实验结果发现,与单纯缺血12小时、24小时大鼠相比,药物干预组缺血侧大脑皮层TGF-β1免疫反应明显增强,计算机辅助图像半定量分析两组间缺血侧大脑皮层TGF-β1免疫阳性细胞数差异非常显著。说明药物对局灶性脑缺血损伤可能有一定保护作用,其机制可能与诱导脑细胞TGF-β1合成增加有关。然而,药物调控TGF-β1表达,其促TGF-β1表达增强的机制可能是这样的:脑缺血时TGF-β1mRNA表达增加可能与缺氧诱导神经和胶质细胞刺激生长因子表达有关。

In this paper a multi-net voting model is presented for improving CAS performance, it can avoid overfitting through collective effect of multi-CAS′ s combination, and reach a satisfatory solution.

本文提出的多网络表决模型的基本思想是,利用多个网络来对未知的模式进行表决来确定其解,由于其平均效应,它能够避免单个网络预言带来的偏颇,获得满意的结果。

In this dissertation, InGaAs/InGaAsP/InP MQW microdisk laser and its characterization were presented. Some conclusions are as following: the characteristics of lasing threshold was discussed by using rate equation. The dependent relations between threshold and cavity volume, spontaneous emission coupling efficiency β were investigated. The whispering gallery mode and spontaneous emission in a microdisk geometry were then studied. Almost all spontaneous emission was coupled into the lowest order TE mode when the normalized thickness of photonics well was between 0.15 and 0.5. The design principle and device process of InGaAs/InGaAsP/InP MQW microdisk laser were presented. The microdisk lasers with the diameter of 8μm, 4. 5μm and 2μm were succesfully fabricated by using etching techniques. The pulse lasing thresholds for the microdisk with the diameter of 8μm and 4. 5μm were 170μW and 15μW, a record results compared with the published in the literature. The cw lasing threshold for a 2-μm-diameter microdisk was only a few μW. We haven't found similar report up to now. To solve the problem of directional output in a microdisk laser, the power coupling efficiency in a double disk geometry was investigated with the theory of waveguide mode couple. A new structure of electrically pumped microdisk laser with output waveguide was designed, making a foundation for the practical use of microdisk laser.

本文主要研究InGaAs/InGaAsP/InP多量子阱半导体碟型激光器的研制和特性表征,并取得如下结果:利用速率方程理论讨论了激光器激射阈值的特性,分析了阈值与腔体积和自发发射耦合系数β之间的关系;讨论了微碟光子阱结构中的自发发射特性和微碟中WGM模式特性;光子阱结构在其归一化厚度在0.15-0.5之间时,几乎全部自发发射进入到最低阶TE模式中;研究了InGaAs/InGaAsP/InP多量子阱微碟激光器的结构设计原理和器件的制备工艺;利用刻蚀方法成功制备出直径分别为8μm、4.5μm、2μm的碟型微腔激光器;直径8μm和4.5μm的微碟脉冲光泵浦激射阈值分别为170μW、15μW,是目前所见文献报导中比较低的;直径2μm的微碟连续光泵浦激射阈值仅几μW,目前尚未见到达到类似结果的研究报导;为解决微碟激光器激射光定向引出的问题,通过波导耦合模理论分析了双层碟之间功率耦合效率;据此设计了新型带耦合输出波导的电泵浦微腔激光器,为进一步研制可实用的电泵浦微腔激光器打下基础。

According to the results of differential thermal analysis and thermogravimetry of a zein film, its glass transition temPerature is 171℃ and the decomposition temperature is 262℃.

醇溶玉米蛋白膜的差热分析结果表明其玻璃化转变温度为171℃,热分解温度为262℃。根据热重分析,温度为81℃时,失重率为2.3%,主要是乙醇及水分子的蒸发。262~355℃为产品急剧分解阶段,与差热分析结果相吻合。

Cases were the diseases with two or super-two kings of abnormity, including 25 cases' chronic obstructive pulmonary disease, 7 cases' pulmonary alveolar proteinosis and 5 cases' viral pneumonia. The DGGO had presented mosaic-fashion's shadow or geographic change or crazing paving pattern, or the DGGO had centrally distributed with lobular central node, acinose node and interstitial fibrosis. Conclusion DGGO may be seen in various diseases.

两种因素或两种以上因素异常的疾病有慢性阻塞性肺病25例、肺泡蛋白沉积症7例及病毒性肺炎5例,慢性阻塞性肺病为通气-血流障碍所致,其磨玻璃影与低密度区形成马赛克样改变,常伴有桶状胸;而肺泡蛋白沉积症及病毒性肺炎同时具有气腔和固有肺结构异常,其磨玻璃影是间质性病变与实质性病变共同作用的结果。

The one is the to poiein, or the principle of synthesis and has for its objects those forms which are common to universal nature and existence itself; the other is the to logizein or principle of analysis and its action regards the relations of things, simply as relations; considering thoughts, not in their integral unity but as the algebraical representations which conduct to certain general results.

一曰创造或综合法则,而尊此法则所归纳的对象被赋之以普遍存在和其自身拥有的共性形式。二曰逻辑或分析法则,它的作用关乎事物间的联系,仅仅是联系。它并非从整体上看待思想,而是将其视为多个代数上的呈示,这些呈示最终将导出某个必然的结果。

The rat's pain threshold will evidently increase by ivc GP 10mg; GP also can obviously decrease the contant of PGE in the rat's digital tissue with inflammation.From the above mentional result,We can gain a good deal of enlightenment:GP has an analgetic action, which active position may lie in nerve centre.

从小鼠ivcGP10mg可明显提高其痛阈及GP亦能明显降低大鼠足跖炎症组织中PGE含量的实验结果提示:GP具有镇痛作用,其部位可能在中枢;GP降低PGE含量,可能是GP发挥镇痛作用的外周因素。

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。