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质量与能量
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  mass and energy
     APPLICATION OF MASS AND ENERGY BALANCE CALCULATION TO THE DESIGN OF BIOSYNTHESIS MEDIUM
     质量与能量平衡在培养基设计中的应用
短句来源
     From the point of view of the physics sense of matter, mass and energy and two parctical examples.
     本文从物质、质量与能量的物理意义和两个实例出发,说明爱因斯坦质能方程E=mc2揭示了物质的两种属性之间的相应关系。
短句来源
      On the basis of the local well posed theorem, we obtain the L 2 control condition of the global existence by using a class of special variantional approach along with mass and energy conservation law moreoever, applying method of undetermined multipliers, matlab numerical technique and boundedness principle, we show the sharp numerical representation of the L 2 control condition.
     在得到其局部适定性的基础上 ,利用一类特殊的变分方法和质量与能量守恒律 ,获得了其整体解存在的一个L2 控制条件 ,并运用待定求解法以及matlab数值技术和有界性定理 ,给出了该L2 控制条件的精确数值表示
短句来源
     A lumped-parameter dynamic model of a water chiller refrigeration system based on mass and energy balance principles is developed. A control-oriented approach to model development is taken and the effect of control inputs,such as compressor operational frequency and TEV(Thermostatic Expansion Valve) opening fraction on the output performance of the system are explored.
     基于质量与能量守恒原理,从控制的角度提出了一套动态冷水机组的集总参数法数学模型,研究了诸如运行频率、热力膨胀阀(TEV)开度等输入变量对系统输出性能的影响.
短句来源
  “质量与能量”译为未确定词的双语例句
     Drawing Relations Between Quality and Energy From E=mc~2
     从E=mc~2看质量与能量之间的关系
短句来源
     The I-V characteristic was calculated for a GaAs N+-p-N+Ballistic structure with a short length of half micron. The calculations were carried out by solution of the electron energy and momentum conservation equations and the Poisson equation, taking into account the energy dependences of relaxation time and effective mass.
     求解电子动量与能量平衡方程和Poisson方程对具有半微米长的N~+-p-N~+GaAs弹道结构进行了计算,并考虑了弛豫时间和有效质量与能量的关系。
短句来源
     Two Attributes of MatterA Discussion on the Relation Between Mass and Energy
     关于物质的两种属性──质量与能量关系刍议
短句来源
     For the energy and momentum of a Schwarzschild gravitational field, the results given by the new pseudo-tensor are more reasonable than those given by other pseudo-tensors pro-posed in the literatures of the general theory of relativity.
     关于Schwarzschild场的能量和动量,新的赝张量给出的结果要比现有广义相对论文献中的其他形式的赝张量所给出的结果较为合理。 文中还讨论了在引力理论中质量与能量的关系问题。
短句来源
     It is helpful in the computation of large scale mathematical model with distributed parameters in concern with transport problems across the wall of the network of permeable tubes.
     它有助于实现可渗透管网络跨壁传输问题分布参数模型的大规模数值计算。 在微循环系统质量与能量交换问题的计算中表明了此方法的合理性与有效性
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  相似匹配句对
     The variable mass problems and energy transfer
     变质量问题能量转换
短句来源
     Quality and standardization
     质量标准化
短句来源
     Food and Energy
     食物能量
短句来源
     The Mass and the Weight
     质量重量
短句来源
     CORRELATION OF MASS,ENERGY,MOMENTUM AND MOTION
     质量能量、动量运动的内在关联
短句来源
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  mass and energy
Based on these calculations, the whole system efficiency calculation method that complies with the mass and energy conservation principle was established.
      
The mass and energy tend to shift from solid to liquid and gas phase (especially to liquid phase) during the process, and the optimum temperature for oil sludge pyrolysis is 500°C.
      
The territories of individuals for different representatives of aquatic animals, including fish, were calculated and their relationships with mass and energy potential of animals were established.
      
Gas discharge from a tube into a vacuum with unsteady mass and energy addition
      
We examine the problem of ideal gas discharge from a cylindrical tube closed at one end into a vacuum, with unsteady mass and energy addition.
      
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The theory presented in the previous paper [1] has a wide class of applications in physics and engineering mechanics. In this paper, we aim principally to show its application to general elasticity (elasticity of generalized media, polar elasticity, or called no-linear asymmetric elasticity in some literatures). A generalized Euler's Kinematic formula is first derived by using the theory [1], it is seen that the method of intrinsic comoving coordinates for deformable body is a natural extension of that method...

The theory presented in the previous paper [1] has a wide class of applications in physics and engineering mechanics. In this paper, we aim principally to show its application to general elasticity (elasticity of generalized media, polar elasticity, or called no-linear asymmetric elasticity in some literatures). A generalized Euler's Kinematic formula is first derived by using the theory [1], it is seen that the method of intrinsic comoving coordinates for deformable body is a natural extension of that method of moving coordinates used in rigid body dynamics. By means of the theorems of momentum and moment of momentum,and the principles of conservation of mass and energy, we found the fundamental equations of general elasticity, certain improvements have been made in comparison with the works of Eringen and Nowacki in polar elasticity. Some of the applications will be left for subsequent papers. Due to the interests in mining and military, we pay special attention in the Appendix to the finite motion of one dimensional shock wave in rock. Theoretical results obtained were used to the interpretations of the equal velocity paradox in shock wave attenuation which was noted by Rinehart, to the tensile fracture phenomena caused by the trailing part ,of . compressive shock wave, and to the influence of couple stress. These .results are also useful in discernning .the change of wave velocity related to earth stress in the precursor of earthquake.

应用前文[1]建立的有限变形力学几何场论,首先导出广义的Euler运动学公式,证明内禀拖带系描述法是Euler动坐标系在变形体力学的自然推广。再由动量与动量矩定理、质量与能量守恒定律建立了具有体矩的广义弹性力学(在文献中有的称非线性非对称弹性力学)的基本方程。进一步改进了Eringen、Nowacki等人提出的广义弹性力学理论。这个理论的一些应用将另文叙述。由于矿业及军事上的兴趣,本文附录重点讨论的应用是关于岩石中的有限变形一维冲击波的基本特点。由新理论取得的结果容易解释Rinehart提出的冲击波衰减时的等速疑案(Paradox),并应用于解释冲击尾波破坏现象以及力偶应力的影响。这些结果对理解地震前地应力变化对波速的影响也是有用的。

In this paper, we discuss the problem of the local energy content in gravitational fields. A new total energy-momentum density pseudo-tensor of gravitational field is given In this paper. The energy content in any part of a gravitational field given by the new pseudo-tensor is an invariant under arbitrary purely spatial transformation, hence the local energy content in the gravitational field has a well-defined physical meaning. For the energy and momentum of a Schwarzschild gravitational field, the results...

In this paper, we discuss the problem of the local energy content in gravitational fields. A new total energy-momentum density pseudo-tensor of gravitational field is given In this paper. The energy content in any part of a gravitational field given by the new pseudo-tensor is an invariant under arbitrary purely spatial transformation, hence the local energy content in the gravitational field has a well-defined physical meaning. For the energy and momentum of a Schwarzschild gravitational field, the results given by the new pseudo-tensor are more reasonable than those given by other pseudo-tensors pro-posed in the literatures of the general theory of relativity.

本文讨论引力场中局部区域的能量问题。这里提出了一个新的引力场总能量-动量赝张量密度,它所表示的引力场局部空间区域中的能量对纯空间坐标变换是不变量,因而引力场的局部区域能量具有确定的物理意义。关于Schwarzschild场的能量和动量,新的赝张量给出的结果要比现有广义相对论文献中的其他形式的赝张量所给出的结果较为合理。文中还讨论了在引力理论中质量与能量的关系问题。

The I-V characteristic was calculated for a GaAs N+-p-N+Ballistic structure with a short length of half micron. The calculations were carried out by solution of the electron energy and momentum conservation equations and the Poisson equation, taking into account the energy dependences of relaxation time and effective mass. The results showed a good agreement with the experiments reported previously.

求解电子动量与能量平衡方程和Poisson方程对具有半微米长的N~+-p-N~+GaAs弹道结构进行了计算,并考虑了弛豫时间和有效质量与能量的关系。计算结果与已报导的实验数据相符。

 
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