In order to assure the uninterrupted power supply of high speed railway, the reliability assessment of traction substation is essential at the design stage. Based on the system reliability engineering theory, a new system reliability analysis method called the GO-FLOW methodology is applied in the reliability assessment of traction substation of high speed railway. Considering failure and dynam...

A boost Power Factor Correction (PFC) front end converter followed by a circulating current for the soft switching flows only through the auxiliary circuit and a In recent years, dc power supplies have been widely used in industrial Lr is delivered to the capacitor C1 via transformer T. iLr (t) decreases linearly. I believe that I understand how a starting capacitor is used with an induction mo...

facts technology has considerable applications in power systems, such as; improving the steady stateperformance, damping the power system oscillations, controlling the power flow, and etc. statcom is oneof the most important facts devices used in the parallel compensation, enhancing transient stability andetc. since three phase fault is widespread in power systems, in this paper statcom is used...

Effective heat transfer is essential for fusion power core components in order to enable the maximum possible power density and power conversion efficiency needed for economic competitiveness and fuel conservation. Helium coolant is particularly attractive for fusion power plant applications due to its inherent safety features. It can be used in conjunction with a refractory metal such as tungs...

The power output of the left ventricle as measured by the product of the Fourier components of aortic pressure and aortic flow is linked by definition to the arterial impedance facing the heart as measured by the quotient of these components. Consequently, the use of power measurements to assess ventricular performance can be ambiguous when accompanied by afterload changes. The heart is conside...

In this study, the stirring mechanism of shear-thinning fluids benefiting from four blades in turbulent flow is considered. The fluid is studied inside a stirred cylindrical tank with a flat bottom. The height of fluid is equal to the cylinder’s diameter and the impeller is positioned centrally. A CFD simulation has been carried out and three-dimensional turbulent flow is numerically analyzed u...

Isolated cat papillary muscle preparations were assumed to contract in the wall of a hypothetical cylindrical model of the left ventricle ejecting into a vascular impedance. Using analogcomputing techniques, a feedback system was created between shortening, velocity of shortening, and the load on the muscle. This feedback function could be modulated by altering the resistance and capacitance co...