Shape optimization of laboratory induction pump

The design optimization of the laboratory induction pump is carried out. The forward task is formulated as a nonlinear magnetic problem that is solved by the professional code COMSOL Multiphysics. The backward (optimal design) problem is solved by Coordinate search, BOBYQA, Monte Carlo, and Nelder-Mead algorithms implemented in COMSOL and also by some other algorithms built in OPTILAB, which is a module of open source code Agros Suite. The methodology is illustrated with an example. The result of optimization is the reduction of mass of selected parts of the pump, while the resultant force acting on the secondary element increases. Benefits of all optimization methods are discussed

On one-sided estimates for row-finite systems of ordinary differential equations

summary:We prove an existence and uniqueness theorem for row-finite initial value problems. The right-hand side of the differential equation is supposed to satisfy a one-sided matrix Lipschitz condition with a quasimonotone row-finite matrix which has an at most countable spectrum

Abstracts of The Second Eurasian RISK-2020 Conference and Symposium

This abstract book contains abstracts of the various research ideas presented at The Second Eurasian RISK-2020 Conference and Symposium.The RISK-2020 Conference and Symposium served as a perfect venue for practitioners, engineers, researchers, scientists, managers and decision-makers from all over the world to exchange ideas and technology about the latest innovation developments dealing with risk minimization