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disturbed energy
相关语句
  干扰能
     Geometrically Non-Linear FEM and Disturbed Energy Method and Their Applications in Structural Stability Analysis
     几何非线性有限元法及干扰能量法在结构稳定分析中的应用
短句来源
     In this method, stability safety coefficient is derived from the ratio fo internal energy to external energy and the minimum disturbed energy equivalence surface is established, which can be used to determine the potential sliding surface.
     该方法不仅从能量的观点给出了基于增稳内能与失稳外能比值的稳定安全系数 ,还将干扰能量法与等值面法结合起来 ,建立了用最小干扰能量等值面来确定潜在滑动面的方法 . 完善和改进了边坡稳定分析的理论和计算方法 ,为系统解决工程稳定性问题中的潜在滑面、危险滑向和最小安全系数提供了实用有效的方法
短句来源
  “disturbed energy”译为未确定词的双语例句
     Based on the theory of extensive angle analysis for slope stability, the equivalence surface method adopting disturbed energy as the criterion is proposed.
     基于边坡稳定性广角度分析的理论、准则和方法 ,提出了以干扰能量为判据的边坡稳定性分析等值面法 .
短句来源
     Results Compared with control group, testicular mitochondria showed lipid peroxidase injury, with disturbed energy metabolism, and the activity of ATPases was lowered.
     结果糖尿病组与对照组比较,睾丸线粒体膜发生脂质过氧化,出现能量代谢障碍,ATP酶活性下降。
短句来源
  相似匹配句对
     The energy of D.
     根部能量的积累随放牧强度的提高而逐渐减少。
短句来源
     The energy of the N-
     N粒子的散射态和束缚态的能量分别为
短句来源
     2. disturbed regime;
     (2)干扰型趋势动态;
短句来源
     CLASSIFICATION OF DISTURBED TRAJECTORIES
     受扰轨迹的分群研究
短句来源
     L CURRENT SYSTEMS ON DISTURBED DAYS
     磁扰日的L电流体系
短句来源
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  disturbed energy
Markedly elevated levels of CoA and HMG-CoA following cerebral ischemia may reflect disturbed energy metabolism and altered formation of cholesterol and isoprenoids.
      
Especially an altered expression and a functional impairment of the ANT seems to be involved in the disturbed energy metabolism of dilated and inflammatory cardiomyopathy.
      
Mitochondrial creatine kinase activity in patients with disturbed energy generation in muscle mitochondria
      
Since obesity is associated with disturbed energy homeostasis, we tested the hypothesis that UCP-2 gene expression is deficient in this disorder.
      
Disturbed energy metabolism with impaired fatty acid oxidation and lower expression of proteins involved in ATP synthesis occurs during myocardial hypertrophy and heart failure.
      


In the case of impulsive loading, we believe the buckling takes place within a very short time tf -- the respond duration of the motion, stability of the dominant motion depends on Ihe behavior of the dominant motion within [0,tf] and so the investigation of the motion after t f is not necessary, and in the calculation of energy, the initial disturbing energy that causes the perturbation is negligible.The basic idea of the proposed energy criterion is.for a system under a certain impulsive...

In the case of impulsive loading, we believe the buckling takes place within a very short time tf -- the respond duration of the motion, stability of the dominant motion depends on Ihe behavior of the dominant motion within [0,tf] and so the investigation of the motion after t f is not necessary, and in the calculation of energy, the initial disturbing energy that causes the perturbation is negligible.The basic idea of the proposed energy criterion is.for a system under a certain impulsive loading, when any kinematically admissible perturbation is imposed on its dominant motion, if the energy absorbed or dissipated by the system due to the perturbation is always larger than the work done by the load on the perturbation, then, the dominant motion of the system is a stable one.If the kinematic equation of the perturbed motion w(x, t) is represented by.where f is a linear differential operator in which the coefficient for the acceleration w >0 within is the inpulsive velocity. Then, the fundamental criterion can be stated as. The dominant motion is stable if for any admissible perturbatlion w (x, t) , we haveThe response duration tf can be treated as a function of the loading parameter and calculated from other consideration, the dot denotes time derivative.Note especially, the perturbation w (x, t) in addition to satisfying the geometric constraints, also possesses the following characteristics; a. The energy of the initial perturbation determined by w (x, t ) is smalland can be neglected when computing F (V, w)b. Buckling does not occur at the initial moment, so the initia values of wand its derivatives w. r. to x (needed to describe the buckled state) taken by their averages can be neglected as compared to their final values at t=tf.These characterize the perturbation at the very beginning of buckling.Denote all admissible perturbation that possess these two characteristics to form a set B. then, the sufficiency condition for stability may be written as.From this proposed modified energy criterion is derived some simple methods and formulae to estimate the buckling wave number and threshold velocity for circular cylindrical shells, stringer stiffened cylindrical shell under axial impact and rectangular plate under inplane impulsive loading. The computation is much simpler than those derived from the concept of amplification factor currently used. The comparison with existing computed and laboratory results shows good agreement.

针对冲击载荷下塑性屈曲的特点,本文提出了一种修正了的能量准则,给出了稳定性的一个充分条件,并用它处理了轴向冲击下圆柱壳和加筋圆柱壳以及平面内冲击载荷下矩形板的屈曲问题,得到了临界速度和屈曲半波数的简单的解析表达式,其中半波数的计算比通常采用的放大函数的方法大为简化。本文所得结果和已有的实验和数值结果很好地符合。

By expressing the stream function in terms of the symmetric and the antisymmetric component with respect to the equator, the barotropic vorticity equation can be separated into two equations, one describing the behaviours of the atmospheric symmetric motion, and the other describing those of the atmospheric antisymmetric motion. From them, for the entire spherical surface, the conservation of several basic physical quantities, such as vorticities, angular momentums etc. in the symmetric case and in the antisymmetric...

By expressing the stream function in terms of the symmetric and the antisymmetric component with respect to the equator, the barotropic vorticity equation can be separated into two equations, one describing the behaviours of the atmospheric symmetric motion, and the other describing those of the atmospheric antisymmetric motion. From them, for the entire spherical surface, the conservation of several basic physical quantities, such as vorticities, angular momentums etc. in the symmetric case and in the antisymmetric case, are discussed. In addition, the energy budget equations and the energy conversion expressions for the two kinds of motion are given. It can be seen from them that there are not only the conversion between the zonal mean kinetic energy and the disturbed energy in the atmosphere, but also the conversion between the kinetic energy generated by the symmetric motion and the kinetic energy by the antisymmetric motion.In the case of including orography and horizontal diffusion into the vorticity equation, a mechanism of the generation of asymmetric behaviours of the atmosphere is proposed. The results show that the asymmetric distribution of orography and that of horizontal diffusion coefficients are likely to be the causes leading to the asymmetric motion.Finally, a theoretical comparison between the global prediction model and the hemispheric one from physical point of view is made.

把流函数分成对赤道对称和对赤道反对称的两部分,可以把正压涡度方程分离为描写大气对称运动和反对称运动的两个方程。根据它们,讨论了在全球范围内几种基本物理量,如涡度和绝对角动量等在对称和反对称情况的守恒性。还给出了这两类运动的能量收支方程和能量转换表达式。可以看出,在大气中不仅有纬圈平均动能和扰动动能之间的转换,也有对称运动产生的和反对称运动产生的动能之间的转换。 还在涡度方程中考虑地形和水平扩散的情形下,提出了大气非对称性质产生的机制。结果表明:非对称的地形分布和水平扩散系数的分布可能是导致非对称运动的原因。 最后,还对全球预报和半球预报,从物理观点作了理论比较。

In this paper,the formulas of the minimum disturbing energy criterion and the latent slipping face and the most dangerous slipping direction and the minimum stability safety coefficient are proposed for engineering.The illustrated examples and computation results show that this method is reasonable and reliable.

本文系统地导出了工程稳定最小干扰能量判据、潜在滑面、滑向和最小稳定安全系数的公式.实例表明本文方法是合理和可行的

 
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