对比

In Diagnosis of Acute Pancreatitis and Comparing with Amylase and Lipase

2在AP诊断中的作用及与淀粉酶和脂肪酶的对比实验-实用医技杂志

Based on the comparison analyses of the viscosity method, transition pressure method, visco-elesticity analogue and residual resistance factors as well as the application range, a series of technical methods and testing standards to evaluate the gel strength and properties have been set up and also the classification indexes of the gel has been established.

通过对粘度法、转变压力法、粘弹性模量法和残余阻力系数法等优缺点和实用范围的对比分析，建立了一套评价凝胶强度、性能的技术方法和测试标准；确定了凝胶分类指标。

In the article, the author to the conventional analogue method and separate method these two kinds different measured the warm far biography method carries on the analysis, the comparison, contrasts respective good and bad points, key to the separate method measured the warm merit has carried on showing.

在文中，作者对常规的模拟法和离散法这两种不同的测温远传方法进行分析、比较，对比各自的优缺点，重点对离散法测温的优点进行了说明。

By comparing and analysing the change of some structure parameters in relaxation, the influence of e...

通过分析和对比松弛前后各模型的各种结构参数的变化，讨论了各类边界条件对松弛模型结构的影响。

The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.

文中对汽车碰撞安全性的设计理论和方法进行了归类和总结，其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等；重点介绍了碰撞有限元法的基本理论和有关算法，涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等，探讨了有限元计算中的材料模型参数获取技术，开发了相应的材料试验装置及材料模型参数反求软件，在此基础上进行了基本的碰撞仿真算例和试验对比研究；文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性，指出了设计薄壁吸能构件时需要考虑的几个主要影响因素，即焊点、壁厚、横截面和预变形等；在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究，提出了吸能转向机构和自适应安全气囊的仿真研究方法；文中最后探讨了整车碰撞性能的设计与改进方法，提出了以理想碰撞特性为目标，采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法，并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究，所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车，研究结果表明，本文所提出的设计与改进方法是适用而有效的，具有重要的工程实用意义和价值。

Nonlinear frequency response characteristics of a 2K-H planetary gearing system with multiple backlash has been calculated by using the developed analytical MDOF harmonic balance method, and has been compared with corresponding linear system. Again, influence of parameters on dynamic behavior is discussed.

通过采用本文推导的多自由度解析谐波平衡法求解2K—H行星齿轮机构的稳态响应，本文计算了间隙存在时行星齿轮系统的非线性动态特性，并就系统的非线性动态特性与线性系统的对比以及参数对行星齿轮系统动态特性的影响进行了分析。

An iterative temperature field model of cylinder, in which the non-linear steam temperature distributed along axial direction, was got based on two-dimensional transient heat conduction differential equation. Analytical simulation demonstrates not only a rapid solution convergence but a minor error.

在二维圆筒壁非稳态导热的基础上，得到了圆筒壁内蒸汽沿轴向线性分布，随时间非线性变化的温度场迭代计算公式，并与有限元计算结果作了对比，结果表明所得模型计算精度高、计算速度快。

Comparing EMD method with traditional FFT method in the analytical process, HilbertHuang transformation is found to be superior in performance.

基于这种方法编写了非线性信号分析程序，把振动信号分解成多个本征函数，在分析过程中比较EMD方法与传统的FFT方法，通过两种方法的对比分析，体现了基于EMD的希尔伯特一黄变换的先进性。

Also, I'll try and compare and contrast Google Analytics and Microsoft Gatineau as we go along.

另外，我会尝试和比较，并对比谷歌分析和微软加蒂诺我们一起走。

Therefore, based on documents reports, through contrastive observation of 20-month-old natural senile mice, this study has confirmed that the anaplasia of subacute senile model mice was obviously similar to the features of 20-month-old naturally physiological senile mice. Mice in both two groups displayed dull color patterns, slow movements, insensitive responses and decrease of growth rates of body weight; hepatic and brain tissues in the mice presented senile features of sero-enzyme such as decrease in SOD activity, increase in content of lipid perhydrides and so on.

为此，本研究在文献报道基础上，通过与20月龄自然老化鼠的对比观察，证实：亚急性衰老模型鼠的退行性变化与20月龄自然生理性老化鼠特征的相近之处鲜明可见。2组均出现毛色暗淡，少有光泽，动作迟缓，反应不灵敏，体重增长率下降；肝、脑组织出现SOD活力下降，脂质过氧化物含量增高等血清酶学的老化特征。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。