Design of composite materials for clothes

Transition to digital models of garments is the first step in dig-itization of the light industry. Adequate digital models can be obtained by using precise parameters of stress-strain properties of a fabric and other materials. The study has revealed regression dependences of the stiffness index of the polymer – fibre composite on the stiffness of the suit fabric and the combination of fusible interlining parameters. The obtained equa-tions can be used to design composite materials of the required stiffness, depending on the form of clothing being created

BOUNDARY VALUE PROBLEMS FOR Q-DIERENCE EQUATIONS AND INCLUSIONS WITH NONLOCAL AND INTEGRAL BOUNDARY CONDITIONS

In this paper, we study boundary value problems for q-difference equa- tions and inclusions with nonlocal and integral boundary conditions. Some new exis- tence and uniqueness results are obtained by using a variety of xed point theorems. Examples are given to illustrate the results.

Inf-sup conditions for finite-difference approximations of the stokes equations

Inf-sup conditions are proven for three finite-difference approximations of the Stokes equa-tions. The finite-difference approximations use a staggered-mesh scheme and the schemes resulting from the backward and the forward differencings.

Hybrid Monte Carlo techniques with a minimal interface

Hybrid Monte Carlo Techniques for the solution of elliptical and parabolic partial differential equa tions have been developed. This paper primarily con cerns the implementation of these techniques with a small, general-purpose digital conputer, a modest analog computer, and a minimal interface.

Optimum generating schedule for a hydro-thermal power system/an analog computer solution to the short-range problem

An analog computer programme for solving the "co ordination equations" developed by Chandler, Dandeno, Glimn, and Kirchmayer 1 (CDGK) is formulated and tested. These coordination equations are wanting in that the plant maximum and minimum limits of operation have not been considered in CDGK's problem formula tion. 2 New coordination equations which consider plant operation limits are therefore derived. These new equa tions are reduced to a form suitable for analog compu tation. The practical feasibility of an iterative-type ana log solution to CDGK's equations as well as to these new equations is established.