做模型

About the stability analysis of railway vehicle system has been discussed for years. In reference reviews, we will introduce all about these theories, including linear and nonlinear theories. Finding out these theories, and improving the inconsequent assumptions.

关於轨道车辆的稳定性分析已有多年历史，在本论文文献回顾中将从最早的Hertz理论开始做介绍，逐步探究各理论发展过程，最后介绍Heuristic非线性理论，并藉由改进文献中不合理的假设，套用模型做数据模拟分析与讨论。

In incorporation with Jilin province science and technology department item "Study of Industry Technological Advance Systemic Effect and Frame of Jilin Province industry Technology Incidence Establishment", about national interindustry incidence relation ,research is carried out in the paper as follows:On the base of national 1997 years input-output production table ,figures out direct consumption matrix of coefficients and matrices of middle input rate.

本文结合吉林省科学技术厅课题《产业技术进步系统效应及吉林省产业技术关联表编制框架研究》对我国的产业关联关系做了如下研究：在我国1997年投入产出表的数据基础上，计算出直接消耗系数矩阵及中间投入率矩阵，并将图分析法用于产业间关联关系的研究中；在计算完全消耗系数矩阵后，计算出各产业部门的感应度系数和影响力系数，并做了波及效果分析；本文经过对各种测算技术进步方法的比较，首次采用前沿生产函数中的数据包络分析方法分析投入产出模型中的产业间技术关联；机械设备制造业具有较高的物质关联性和技术关联性，同时波及效果显著，把含有高新技术的机械设备制造业作为主导产业发展，可以提高整个工业的技术装备水平。

Early the next morning Michael reviewed the mock-up and gave the go-ahead to have it printed.

第二天一早麦克重做了模型，并做了印刷的前期安排。

The analytical Points of views are as follows: From a strategies and marketing Point of view, to analyze the China white household appliance market and it's main competitors,applying Michael Porte's 5 Strength, SWOT, SPT model .

本文的主要贡献是：从专业的战略和营销的角度，对中国白色家电市场以及主要竞争者做了分析，应用目标市场营销战略分析方法，波特五种力量模型，SWOT分析方法对伊莱克斯中国的过去和未来做了研究和探讨。

This paper first analyses and summarizes the ststus quo and evolution trend of encryption, some common used cryptograph are introduced, including the algorithms used in symmetric cryptosystem and asymmetirc cryptosystem. We describe the theory of each algorithms and compare the elliptic curve cryptosystem with the other two asymmetric cryptosystems to show the advantages of this algorithm. Second, the principle of ECC is discussed, including the math foundation of ECC, basic conception of elliptic curves, constructiong idea of ECC, operation on the elliptic curve and so on. Third, the current attacks of ECC were analyzed deeply, and an algorithm based on limited prime number field was constructed. We analyzed its realizability in theory, and implement it by using certain function of MIRACL software package. Latter half in this paper, the implementation model of a simple elliptic curve encryption system which based on GF has been introduced. The paper also put a deep analysis on the algorithm of point addition and point multiplication.

本文首先对密码技术的发展现状及其发展趋势进行了分析和综述，详细的介绍了私钥密码系统和公钥密码系统的发展，说明各种算法的原理和优缺点，并给出了一些典型的密码体制的简要分析，重点将椭圆曲线算法与其它几种公钥密码算法比较，说明椭圆曲线算法的优势；其次，探讨了椭圆曲线密码体制的原理，包括椭圆曲线密码的数学基础、基本概念、椭圆曲线密码体制的构造思想等问题；第三作者对椭圆曲线的攻击现状作了详细的分析，针对所使用的大素数域F_p，设计了素数域上安全椭圆曲线产生的算法，从理论上做了可实施性分析，从软件上做了具体实现；在本文的后半部分，提出了一个简单的基于有限素数域上的椭圆曲线加密方按算实现模型，并对SECES中设计的点加和点乘运算进行了深入分析。

So what cultural studies was—and let me said that it was always many things—in Britain in the 1970s when some people did subcultural work, or in the 1970s and 80s when some people did Policing the Crisis and hegemony theory, those are useful models and they are useful ideas but they don't tell you what cultural studies should look like today, in the United States, or in Hong Kong, or in China. It won't look the same.

所以文化研究曾经是什么——容我说它从来都同时是许多东西——1970年代在英国有些人在做次文化研究，或者在七十年代和八十年代有些人在做《控制危机》和霸权理论，那些是很有用的模型和意念，但它们不能告诉你文化研究今日在美国、或者香港、或者中国，该是什么模样。

Numerical simulations were done for a bistable latch valve of the system by FLUENT, and three groups of datum for different fluids were obtained with the same effective exit sectional area. Besides, a static mathematic model for the electromagnetic valve was established based on the obtained datum. Secondly, the motion of the valve spool was realized by UDF file in FLUENT. Three kinds of motions, uniform, acceleration and motion driven by the coupling effect of the liquid resistance and the electromagnetic force, were calculated and compared. The dynamic characteristic of the electromagnetic valve was obtained by analyzing the relationship of the mass flow rate of the inside flow field of the electromagnetic valve, the change of the drop pressure of the passageway of the valve, and motion time.

并针对系统中的某双稳态电磁阀，使用商用CFD软件FLUENT对其进行内部流场的数值模拟，通过使用不同流体介质，不改变阀门有效出口截面积的情况下，分析得到的三组数据，建立了该电磁阀的静态数学模型；通过编写UDF文件，实现对阀芯运动方程的控制，在阀门做由闭合到开启、开启到闭合运动时，控制阀芯分别做匀速运动、匀加速运动以及阀芯受到液体阻力与电磁力作用力的耦合力的运动，分析了三种工况下电磁阀内部流场质量流率和阀门出口入口压降的变化以及运动时间，从而得到该电磁阀的动态特性。

130 rats were randomly divided into five groups: 5F electroacupuncture treatment group, 50Hz electroacupuncture treatment group,100Hz electroacupuncture treatment group, the model group and the control group. 4mm defect was produced in the left sciatic nerve of each rat and silicon nerve guards were used to bridge the nerve defect not including the rats of the control group. After 10 weeks electroacupuncture treatment, gross observation, histological examination of the sciatic nerve were carried with method of HE stainning and S-100 immunhistochemical staining, Sevier-Munger stainnning. The histomorphometric examination of the triceps muscles were observed with measuring width muscle cell and the wet weight, and measuring the content of the heparin and the lactic aid of the triceps muscle with biochemistry methods.

实验方法：将130只Wistar大鼠随机分为五组：正常组、造模组、电针5Hz组、电针50Hz组、电针100Hz组，除正常组外，其余各组手术切取坐骨神经4mm后，做坐骨神经硅胶管桥接术，造成周围神经损伤模型，取患侧足三里、三阴交、环跳穴，术后第四天开始电针，每两天一次，每次10分钟，治疗10周后处死动物，取出硅胶管内新生的坐骨神经，纵切片，HE染色、S100免疫组化染色、Sevier-Munger银染，观察坐骨神经纤维再生情况，以健侧同段坐骨神经做对照；取患侧脖肠肌称取湿重，HE染色，观察腓肠肌肌细胞直径，生化测量腓肠肌肌糖元、乳酸。

"Vital exhaustion, defined as feelings of depression and fatigue, has previously been investigated mainly as a risk factor for cardiovascular disease," write Corinna Bergelt, PhD, from the Danish Cancer Society in Copenhagen, Denmark, and colleagues.

此研究样本包含8，527人，年龄21至94岁，他们已经被测试过，他们是1991-1994年间哥本哈根心脏研究计划中的一部份，研究者根据生命衰竭分数将病患分成四组，他们根据丹麦癌症登记处的资料决定癌症症状，使用Cox线性危害模型做回归分析，用数个交络变数做修正。

METHODS: Sixty healthy Sprague-Dawley rats were randomly divided into 3 groups: 6 rats in normal control group, 6 rats in EGb treating normal IOP group, and the other 48 rats were established chronic high IOP models of rats by cauterizing two episcleral veins. The n 30 rats satisfying experimental level were selected and randomly divided into five groups: 6 rats in physiological brine treating group, and the other 24 rats were divided into four experimental groups according to the dose of EGb: group A, EGb 50mg/; group B, EGb 100mg/; group C, EGb 150mg/; and group D EGb 200mg/. After the treating time of 1 month, the rats were sacrificed on schedule.

取健康SD大鼠60只，正常对照组和正常银杏叶治疗组各6只，其余48只采用烧烙法，烙闭大鼠左眼2条浅层巩膜静脉，制作大鼠持续性高眼压模型，从中选出眼压稳定在实验要求水平的大鼠30只，随机分为生理盐水组，治疗A组（每日EGb 50mg/kg）、治疗B 组（每日EGb 100mg/kg）、治疗C 组（每日EGb 150mg/kg）、治疗D 组（每日EGb 200mg/kg），治疗时间为1mo，处死大鼠后做视网膜全层铺片，对RGCL神经元做特异性染色后行神经元计数分析来评估神经元的情况。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。