In this paper,we discuss J-integrals near modelsⅠandⅡcrack tips for the plates oflinear-elastic isotropic homogeneous material and orthotropic composite mater
In this paper,the conception of fractal geometry derived from geometric inversion isintroduced.A ramified self-inverse fractal with symmetry and a self-inverse
In this paper,by using functional analysis and integral equation method,we obtainsome results about the properties of far field of acoustic waves in an inhomoge
In this paper,the Gibbs-Appell’s equations of motion are extended to the most generalvariable mass nonholonomic mechanical systems.Then the Gibbs-Appell’s equ
The mechanism of the response motion of a suspended particle to turbulent motion ofits,surrounding fluid is different according to size of turbulent eddies.The
B(?)cklund transformations for the equation a~2u/ax~1ax~1+a~2u/ax~2ax~2=f(u)(here fis an arbitrary function)is studied in this paper,using the procedure of Wahl