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The theory model and main technological parameters for semiconductor of ceramic material is studied, the semiconductor technology of oxygen defect through weak reduction is proposed, the BaTiO〓 semiconductor sample is prepared by means of doping and oxygen defect, the relation between the conductivity and color is inspected, a simple way to detect the semiconducting character of the sample is proposed.

探讨了陶瓷材料半导化理论模型及主要工艺参数,提出了弱还原氧缺陷半导化工艺模型,并分别用电价掺杂半导化和弱还原氧缺陷半导化两种工艺制备了BaTiO〓半导化样品,考察了样品颜色与电导的关系,提出了一种简易判断粉体样品半导化的方法。

The defectiveness of rollerbearings can result in abnormal vibration and yawp of equipment, even seriousdamage to the equipment and procreant disaster.

因此,开展对滚动轴承的故障诊断具有很现实的意义。本文从理论上分析总结了滚动轴承典型故障产生的机理,并建立了不同故障状态下的理论模型。

And then the influence of two of the damage models, the Kachanov and the gradient dependent constitutive equations, on the well posed properties of the fundamental equations in continuum damage mechanics is studied according to th.

首先从非局部理论出发,推导了应变梯度损伤本构方程;然后利用一阶拟线性偏微分方程组的特征理论,在一维弹性损伤情况下分析了两种不同的本构模型,即 Kachanov损伤本构方程与应变梯度损伤本构方程,对连续介质损伤力学基本方程适定性的影响。

A new growth model is derived from the logarithmic function and the power law.

通过对幂函数和对数函数的比较分析,本文构建了新的词汇增长模型,并应用此模型推导出科技英语的理论词汇增长曲线及其95%双向置信区间。

Based on the average lattice and average atom models, effects of interstitial impurities on the valence electron structures and phase transformation of Ti-Al alloys are analyzed, and the degree of descension of bond energy, melting point and liquidus temperatures as affected by interstitial impurities are calculated by the bond energy formula of the EET.

应用固体与分子经验电子理论的平均晶胞和平均原子模型分析计算了间隙杂质对Ti-Al合金价电子结构和相变的影响。同时根据该理论的键能公式计算了间隙杂质影响下的键能、熔点和液相线的变化。

So it's desiderative to develop the reusable information system facing PLM, which carry on the uniform definition and description of product model through reusing techniques, to establish the integrity and highly consistent integration product information, ultimately achieve the reusing and sharing of the information in all grades.

本文根据以上叙述需求,以国家自然科学基金项目"基于集成产品模型的可重用设计理论和方法研究"(50375161)为支撑,在对PLM的内涵、流程体系和功能组件,及可重用理论、重用方式和重用实施研究的基础上,对建立可重用信息系统需要的关键技术进行了深入研究。

First of all, the evolutionary game model of this system is built, according to a population and determinately dynamic function in evolutionary game theory, and quilibrium structure and effect factors of the evolutionary system are analyzed. Next, the evolution quilibrium characteristics of investor behaviors in China's securities market are researched as a demonstration, and the reasons why noise traders become popular in the process of investor behavior evolution are explained, based on its evolutionary mechanism. Moreover, the influences of investor behavior evolution on share market's fluctuation are researched through setting up its noise trade model. When noise traders are dominant in securities market, price discovery function and resource configuration effect are also analyzed. Finally, when noise trade become popular, the shortage of some policies, such as, enlarging institution investor and short sale is explained, and some good suggestions are provided according to former research results.

首先,应用进化博弈论中的单群体确定性模仿者动态方程建立证券投资者行为的进化博弈模型,并对进化系统的均衡结构特征及其影响因素进行分析;其次,根据我国证券市场实际,对我国证券投资者行为进化的均衡结构进行实证分析,并从投资者行为进化的角度,解释我国证券投资者行为进化为噪声交易主导市场的原因;然后,通过建立股市波动的噪声交易模型,研究投资者行为的进化对股市波动的影响,并进一步分析我国噪声交易主导市场时对市场价格发现和资源配置功能的影响;最后,根据理论及实证的研究成果,分析噪声交易主导市场时大力发展机构投资者等制度作用的有限性,并进一步提出我国证券市场相机治理的政策建议。

The deterministic process accelerates convergence speed of algorithms.(2) To counter the defects of traditional clustering model, some research in clustering model has been done.

本课题的研究属计算机理论研究的前沿领域,是关于新计算模型的研究,具有重要的理论意义和实用价值。

From component to system and from theory to practices, This diesis has done extensive research on the fundamental models, optimal design theory -. sensitivity analysis and parameter design etc. of a kind of adjustable linear oil damper on the basis of following the international research steps of oil dampers.

本文以可调式线性油压减振器为研究对象,在跟踪油压减振器国际研究前沿的基础之上,对其基础模型、优化设计理论、敏度性与参数设计等进行了一系列从元件到系统、从理论到实践的深入研究。

A mathematics model in the form of differential equation was constructed base on the theory of motor timing. Then the model was changed into the form of transfer function.

应用交流电机调速理论,建立了船舶电力推进系统的微分方程形式的数学模型,再将其转化为传递函数形式的数学模型,应用Matlab语言进行了动态特性仿真计算。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。