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.

Based on the theory of extensive angle analysis for slope stability, the equivalence surface method adopting disturbed energy as the criterion is proposed.

Results Compared with control group, testicular mitochondria showed lipid peroxidase injury, with disturbed energy metabolism, and the activity of ATPases was lowered.

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.

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.

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.