This paper is concerned with the centralized fusion estimation problem for multi-sensor systems with multiplicative noises in state and measurement matrices and missing measurements. Based on the innovation analysis approach, the centralized fusion estimators including filter, predictor and smoother are developed in the least mean square sense. The steady-state estimators are also studied. A su...

a subsurface drainage network mainly carries unsteady flow and data are not usually available for model parameters calibration in such networks. in the present research, the finite volume method using the time splitting scheme was employed to develop a computer code for solving the one dimensional unsteady flow equations. using corrugated sub drainage pipes, an experimental prototype setup was ...

materials exhibit significant creep behavior at temperatures above 40% of their absolute melt temperature. lead, tin and their alloys are such materials which experience significant creep behavior in room temperature. one of the most important applications of the tin-lead alloys is soldering electronic circuits in electronic industry, and for lead are isolation walls and wet batteries. room tem...

The global properties of a predator-prey model with stage structure for predator are studied using Lyapunov functionals and LaSalle’s invariance principle. It is found that, under hypotheses which insure the uniform persistence of the system and the existence of a unique positive steady state, a feasible a-priori lower bound condition on the abundance of the prey population ensures the global a...

This paper proposed a proportional Integral Controller for Switched Reluctance Motor Drive.PI controller is one of the conventional controller .The basic sensorless operation of the Switched Reluctance Motor Drive is usually tested by this conventional controller under steady state condition. The parameter speed of the drive is controlled and analysed with the help of this controller without an...

The asymptotic behavior of the principal eigenvalue for general linear cooperative elliptic systems with small diffusion rates is determined. As an application, we show that if a cooperative system of ordinary differential equations has a unique positive equilibrium which is globally asymptotically stable, then the corresponding reaction-diffusion system with either the Neumann boundary conditi...

We sought to address the contribution of the ventral medullary intermediate (I) areas to respiratory regulation in the close loop condition. The experiments were done on anesthetized, spontaneously breathing cats. The transient and steady-state neural respiratory output responses to longlasting cooling of the I areas and to vagotomy and hyperoxia performed during the cooling period were investi...

In this paper we consider a model for pool-boiling systems known from the literature. This model involves only the temperature distribution within the heater and models the heat exchange with the boiling medium via a nonlinear boundary condition imposed on the fluid-heater interface. The model allows multiple homogeneous (i.e. spatially constant) and multiple heterogeneous steady-state solution...

This paper deals with a class of non-local second order differential equations subject to the homogeneous Dirichlet boundary condition. The main concern is positive steady state of the boundary value problem, especially when the equation does not enjoy the monotonicity. Nonexistence, existence and uniqueness of positive steady state for the problem are addressed. In particular, developed is a t...