查询词典 energy

Based on the strain energy model presented by Sun-Zhang and the energy conversion and energy conservation,a new semicontinuum model is presented to calculate the nature frequency of a nanoscaled clamped-clamped silicon beam.

基于Sun-Zhang提出的应变能量计算模型，根据动势能转换与守恒原理，提出了用于分析硅纳米梁基波频率的半连续体模型。

Based on the generalized potential energy variational principle of nonlinear elasticity theory with large deflection,the incomplete generalized potential energy functional is established on the space coupling free vibration of three-span self-anchored suspension bridge by considering the effect of coupling of flexural and axial action,and shearing strain energy of stifening girder.

摘 要：基于大位移非线性弹性理论的广义变分厚理，考虑了加劲梁的压弯耦合和剪切应变能的影响，建立了三跨自锚式悬索桥空间耦合自由振动的大位移不完全广义势能泛函，通过约束变分导出了自锚式悬索桥的竖向挠曲振动、横向挠曲振动和纵向振动的基础微分方程，忽略非线性项的影响，进而得到线性振动微分方程。

Based on the generalized potential energy variational principal of nonlinear elasticity theory with large deflection, the incomplete generalized potential energy functional with large deflection is established on the space coupling free vibration of three-span self-anchored suspension bridge by considering the effect of axial compressive and shearing strain energy of stiffening girder.

摘 要：摘要：基于大位移非线性弹性理论的广义变分原理，考虑了加劲梁轴向压缩应变能和剪切应变能的影响，建立了三跨自锚式悬索桥空间耦合自由振动的大位移不完全广义势能泛函，通过约束变分导出了自锚式悬索桥的竖向挠曲振动、横向挠曲振动、纵向振动及扭转振动的基础微分方程，为自锚式悬索桥的固有振动性状分析提供可靠的理论依据。

According to slack variable analysis, there are 19 DMU in 2004 and 2005 to have more energy input than needed. Among them, 5 DMU have inefficient energy consumption in ed too much for the amount of energy consumption in consecutive years.

以差额变量分析在2004 及2005 年共有19 个DMU ，分别在当年度能源耗用量是投入过多，而其中又有5 个DMU 是连续二年能源耗用量投入过多的单位，相对於其他单位无效率且浪费的，也造成经营无效率，换言之，无效率旅馆的能源投入量有进一步减少的空间。

As the energy crisis gets worse day by day, solar energy is the unlimited source of energy that would never run into depletion.

随着全球能源危机的日益加剧，太阳能作为一种取之不尽。

Utilization of solar energy and wind energy is the ultimate solution to the energy problem.

运用太阳能和风能是解决能源问题的根本和长期的途径。

Hotel ling's rule and the optimal exhaust theory of non-regeneration energy indicate that technological progress, particularly mining technology and the improvement of smelting technology in a certain period of time would produce a significant impact on non-regeneration energy production costs and sostenuto drop the marginal costs in energy resources exploitation.

能源生产厂商通过其价格行为和产出水平的调整，使社会福利水平和社会产品的总需求不断弱化，经济与社会的稳定持续发展面临了来自于产品供给不足的风险。

According to structural characteristics of floating slab tracks, a track segment element was taken between two adjacent fasteners. For each element, rails were regarded as Euler beams supported by discrete viscoelastic supports. The fasteners and rubber supports were replaced by a linear spring and damp. So the vibration model of the floating slab track was established. In constructing vibration model of a metro train, each car of the metro train with two suspensions was modeled as a multi-rigid body system, in which rigid bodies were connected with each other by a linear spring and damp. Combining the potential energy of vertical vibration of the track with that of the metro train, the total potential energy of vertical vibration of the train and track was obtained. And then, the matrix equation of vertical vibration of the system was established using the principle of total potential energy with stationary value in elastic system dynamics and the "set-in-right-position" rule for formulating system matrices. The vibration responses of the system can be obtained by solving the matrix equation with the direct time integration such as Wilson-θ method.

摘 要：针对浮置板式轨道结构特点，取相邻2个扣件之间的轨道为1个轨段单元，钢轨视为连续弹性点支承Euler梁，浮置板视为弹性薄板，扣件系统及橡胶支座均模拟为线性弹簧及粘滞阻尼器，建立浮置板式轨道振动模型；将城轨列车中的车辆均离散为多刚体系统，各刚体之间通过线性弹簧及粘滞阻尼器相连，建立列车振动模型；将浮置板式轨道及列车振动势能叠加，得到系统竖向振动总势能；基于弹性系统动力学总势能不变值原理及形成系统矩阵的"对号入座"法则，建立此系统竖向振动矩阵方程；采用Wilson-θ逐步积分法求解此矩阵方程，得出此系统竖向振动响应。

Simply speak the engine is an energy transformation sector, will soon be gasoline of thermal energy, sealed in the steam cylinder combustion gas expansion, push live piston power, transformed into mechanical energy, this is the most basic principle of the engine.

简单讲发动机就是一个能量转换机构，即将汽油的热能，通过在密封汽汽缸内燃烧气体膨胀时，推动活活塞作功，转变为机械能，这是发动机最基本原理。

In the lower energy region, the measured data had some deviations with the predictions. Further, the measurements for the polymer foils confirmed the validity of the use of Bragg's rule for the stopping force and energy loss straggling in this energy region.

对於高分子薄膜的测量，证实在本论文研究的能量区间，布拉格规则可适用於入射离子於物质中阻止能力与能量损失岐离的加总之用。

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。