differential mechanics
1.The contact deformation at transient engaging point is derived from deeply analyzing geometric property and kinematics relationship between the two action flanks by use of engagement principle, differential geometry, elastic and plastic mechanics, etc.
3.During the deformation, differential stress inferred by use of calcite twin lamellae is more than 500 bar, and mechanics of stepped thrust faults is.
4.Abstract: Some problems of quantum mechanics can be solved easily by means of the invariant of differential equation.
5.However, it is a difficult and interesting aspect to study nonlinear ordinary differential equation singular boundary value problems. It is well known that the ordinary differential equations singular boundary value problems aries in the fields of gas dynamics, newtonian fluid mechanics, the theory of boundary layer, epidemic problems and so on, and has been considered extensively.
6.Analysis has been carried out on the mechanics in a kind of new typed linear transmission of differential wheel based on synchronous cog belt.
7.In order to analysis single nozzle weft insertion confusor channel, a simplified mechanics model and corresponding differential equations about flow and Pressure are set up.
8.By using first Born approximation of quantum mechanics and analytic wowe function of H and Heatom,their elastic and differential inelastic collision cross section is computed.
9.From basic equations of elastic mechanics, related knowledge of fracture mechanics and frequent used methods of differential and integral calculus, bending fracture models of anisotropic functionally graded materials is established by assuming that material constants (stiffness matrix component) are expressed in arbitrary functions.
10.In the paper, based on the potential flow theory of the fluid mechanics, the similar variable, the similarity solution, the ordinary differential equation of the similar function and its boundary conditions are deduced for the problem of flow from a line source located on the water area boundary. This is also the problem controlled by the Laplace?s equation under some boundary conditions, and it has the similarity solution. The conception of the method is clear physically.

