电动力

Based on Reddy higher-order shear deformation plate theory and general von Kármán-type equations, the analytical solutions for free vibration and dynamic response of simply supported functionally graded plates with piezoelectric layers in thermal environments are described with double Fourier series, where temperature-dependent material properties are taken into account.

基于Reddy高阶剪切变形理论和广义Kármán 型方程，用双重Fourier级数展开法求得了热环境下带压电层的功能梯度复合材料混合层合板的自由振动及动力响应的解析解，分析中考虑了材料热物参数对温度变化的依赖性，讨论了环境温度和控制电压对固有频率及动力响应的影响。

The power of the engine can be transmitted to driving axle directly by the electromagnetic force, and only part of power is converted from mechanical energy into electric energy, so the power losses in energy conversion can be reduced.

其特点是：发动机独立于车轮运转，可始终在高效区工作；发动机的动力主要通过电磁力直接传给驱动桥，仅有少部分动力经过机械能－电能－机械能的转换，降低了能量转换过程中的损失；且该系统兼备无级变速器的功能。

This paper set out from the high order shear deformation theory at first, and utilize the spline finite point method to set up a new dynamic model of piezoelectric intellectual plate. Secondly ,a corresponding MATLAB program is written according to the theory, and has analysed the deformation of the piezoelectric intellectual plate. In the end , this paper has analysed the vibration control of the piezoelectric intellectual plate. Some results are compared with the analytic values, and have proved the rationality of the results of this paper.

本文首先从高阶剪切变形理论出发，利用样条有限点法，建立了压电智能层合板新的动力模型；其次，利用MATLAB语言编写了相应的计算机程序，对压电智能层合板的变形进行了分析；最后分析了压电智能层合板振动控制问题；其中一部分结果与相应的解析解作了详细的比较，证明了本文结果的合理性。

The dynamic characteristics of stochastic truss structures and stochastic frame structures are analyzed by using Random Factor Method. Then, from the expressions of structural random response of the frequency domain, the computational expressions of the mean value, variance and variation coefficient of the mean square value of the structural displacement and stress response under the stationary random excitation or non-stationary random excitation are developed by means of the random variable's functional moment method and the algebra synthesis method.

考虑压电智能桁架结构物理参数、几何参数、结构阻尼和外荷载、闭环系统控制电压分别或同时为随机变量，构建了结构在随机力作用下的动力响应分析模型，提出了求解方法，推导出结构动力响应随机变量的数字特征计算表达式，通过算例验证了所建模型和所提求解方法的正确性和有效性。

Long-stroke diesel engine is designed to meet domestic and international oil exploration and development of the market demand, particularly in electricity power for the drill rig mud pump and stand-alone units and the development of new drilling power.

4012型长冲程柴油机是为满足国内外石油勘探市场的发展需求，针对钻机动力特别是电驱动钻机和单机泥浆泵机组而开发的新型钻采动力。

Statistics based on the multiplicity of vital power elements and on the electrophilic strength of aquo ions of vital power elements respectively.

本文提出了用量子统计力学参数(R_1，R_2)界定中药阴阳性的两种方法：根据生命动力元素重度进行统计和根据生命动力元素含水离子亲电强度进行统计。

The possible mechanisms that the power system of electric vehicles hurts passengers were analyzed in the paper, including electric injury, chemical injury, burning injury, and etc. The reasons that cause these injuries were analyzed in detail. The safety characteristics of the batteries that electric vehicle is in common use, such as excide battery, MH-Ni battery, Li+ battery, and fuel battery, are researched.

本文重点分析了电动汽车动力系统可能对乘员产生的各种伤害，包括电动汽车的电伤害、电动汽车电池的燃烧爆炸伤害、电池电解液的泄漏和电池有害气体释放引发的伤害等方面，具体分析了它们产生的原因和可能引起的后果；研究了电动汽车几种常用动力电池的安全特性，包括铅酸电池、镍氢电池、锂离子电池和燃料电池，以及它们各自可能存在的安全隐患和产生安全问题的机理。

This chair wagon provides a car frame that is supported by numbers of wheels and has an internal power set as well as a chair set (please refer to the figures and specification). The power above-mentioned may be of prime mover or electromotor. Electric drive not only can protect circumstance, but also can solve the problem of charging.

它由若干轮子支承一车架，车架内部布置动力、上面布置椅子而成，动力可是原动机，亦可是电动机，电驱时既具有环保交通的巨大优势，又很好地解决了充电难题。

In view of that the traditional estimation strategy of SOC is not suitable for the conditions of variable current discharge of battery, which is particularly complex in hybrid excavator, a new estimation strategy of SOC is presented based on the law of conservation of energy and four-line's measurement technique.

传统的电池荷电状态估算方法己经不能满足蓄电池变电流放电工况的需要，而混合动力液压挖掘机中蓄电池变电流放电工况异常复杂，因此变电流工况下SOC的准确估算具有重要意义。

As a special micro-power source, thermoelectric micro-generator is of interest for its applications in Micro-Electro-Mechanical Systems. Electrochemical deposition method took the advantage at the fabrication of thermoelectric material in micrometer scale. In this paper, the detailed reduction processes of Bi~(3+) and HTeO~(2+) were studied for the first time. And thermoelectric nanowires were also prepared by electrochemical deposition. On the basic study of thermoelectric material, detailed exploration was made to the design and fabrication process of thermoelectric micro-generator.

作为一种特殊的微动力能源，微型温差发电器在微机电系统中的应用前景引起了人们极大的兴趣，电化学沉积方法在制备微米级尺寸的温差电材料方面具有显著的优势，本文对Bi~(3+)和HTeO~(2+)离子的电化学还原过程展开了详细的研究，并尝试了利用电化学沉积方法制备Bi_2Te_3纳米线材料，在温差电材料研究的基础上，对微型温差发电器的结构设计和制造过程进行了详细的探讨。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。