PURPOSE: The purpose of this study was to develop an estimation equation that predicts energy expenditure (EE) during swimming exercise based on heart rate (HR). And, we also evaluated the validation for field application and compare it with existing speedbased EE equation.METHODS: A total 63 healthy adults (ages 19-49 years) who could swim at various speeds were conveniently sampled. experimen...

This work deals with two models of a single machine subject to breakdowns. The first model is binary-state while the second one multi-state model. Breakdowns are followed by repairs. systems under study tracking type. We use nonlinear predictive control determine optimal repair rates that keep variables as close possible their target. Numerical illustrations sensitivity analysis used assess eff...

The study of stabilization of the linear dissipative wave equation in a bounded domain with Dirichlet boundary condition is now an old problem. The exponential decay rate of the energy was established by Bardos, Lebeau and Rauch [ BLR] under a geometrical hypothesis linked with the geodesics. Furthermore such condition called geometric control condition is almost necessary to get a uniform expo...