The new method ofproblem solving of Cauchyfor differenńal second-kind equations with variable coefficients is offered which rests on a reduction of this equation to the equation Rickati. The solution last is under construction on the basis of a method of a linearization. The estimates of approximation of the precise and approximate solution are given.

The model of non-straight method of pH factor measurement in acid-alkali mixture based on measurement of material quantity in separate components of mixture is described. Mathematical model allows us to calculate tolerable meanings of metrological characteristics of measurement channels and technical cha?-acteristics of the object of measurement (i. e. volumes and concentrations ...

There are considered variants ofapplication of ANSYS program product at holding occupations for the students studying courses of mechanics under the abbrex’iated course. The opportunities of the program promoting an enhance of student s knowledge are shown by the example ofproblem solving about a bending of a beam with opened profile, shell stability, a deformation of a reinforced ...

Computer book MathTeachTest was designed on the base of ClicklLeam ToolBook II 8.0, which can be used for automation of education, distance learning for some topics of Mathematic in school. There is a description of main parts of the computer book and application.

Appearing of chaos at an propagation of waves in the determined heterogeneous media to invistigation in the general case yet it is not possible. The ray method allows to reduce partial differential equation to the ordinary nonlinear differential equations, to which investigation it is possible to apply methods of nonlinear dynamic of systems. The closed systems of the equations ...

Some opportunities ofapplication ofpersonal computers at performance by students ofsettlement —graphic works on discipline «Applied mechanics». The problem ofmodernization ofa material offered to studentsfor studying is considered within theframework of discipline «Applied mechanics «. There are offered some variants of using computer equipment at performance of settlement-graphic works.

Some problems of construction of the automatized training system (ATS) of applied mechanics are touched in this article. The ATS consists of two information blocks: an electronic directory and control-checking system. The electronic directory includes some amount of numbei-ed contexts. Questions of a different level of difficulty form this testing system. Question's selection is ...

The structure of course of laboratory operations «Dynamic problems of the theory of elasticity», designed on faculty of a theoretical and applied mechanics of the Byelorussian state university is submitted. The solution of the tasks of laboratory operations is under construction with the help of functions of computer system of «Mathematica». The example of realization of one of ...

From the point ofview the microelectromechanics the surface acoustic waves (SA W) in multilayer structures consisting of a crystalline substrate and several parallel plate functional layers of different thickness from crystalline, polycrystallic, nanostructured or amorphous materials. One of the most perspective material of a SAW substrate is the single-crystal lithium niobate ...

On the equations of weak disruptures for combined equations of a motion isotropic and cubic anisotropic mediums noted in builders of a stress tensor, the expressions for coefficients of a connectedness of mechanical and thermal fields are obtained. Is shown, that at magnification of dimensionality of a problem (on spatial coordinate) the values of coefficients of a connectedness ...