Institute of Control and Industrial Electronics.techniques as: multipulse rectifiers, active filters and PWM rectifiers Fig. Similar to the PWM active filter, the PWM rectifier has a complex control structure, the.source PWM rectifiers in different processes with a power range from a few. This paper shows that PWM regenerative rectifiers are a highly developed and.Three phase six-switch PWM buc...

Introduction. Ferumoxtran is a superparamagnetic iron oxide (SPIO) MRI contrast agent that has been used to estimate blood volume fraction (BV) and the vessel size index (VSI, or average blood vessel diameter) [1] in tumours. The administration of SPIO in blood produces steady-state susceptibility contrast which can be related to BV (proportional to ΔR2* due to contrast injection) and VSI (prop...

Introduction Blood Volume fraction (BVf) and Vessel Size Index (VSI) MR imaging are powerful tools for characterizing tumor microvasculature and its evolution under therapy. BVf and VSI imaging are based on the measurement of the changes in R2 (ΔR2) and in R2* (ΔR2*) induced by a contrast agent (CA) [1]. In brief, two types of CA have been evaluated: iron oxide particles (USPIO), in animals, an...

In this paper, we study the unbalance problem of the input Direct Current (DC) voltages of the five-level neutral point clamping (NPC) voltage source inverter (VSI) used in hybrid renewable energy system. The hybrid system is composed of doubly fFed induction generator (DFIG) driven by wind turbine, the rotor is connected to three fivelevel NPC VSI feed by photovoltaic voltage source. We show p...

Commercially available pokeweed mitogen (PWM) has been reported to activate macrophages, leading to production of proinflammatory cytokines and nitric oxide (NO). However, we found that polymyxin B (PMB), a specific inhibitor of endotoxin activity, inhibited the PWM-induced expression of proinflammatory cytokines and NO and the activation of Toll-like receptor 4 (TLR4). A kinetic-turbidimetric ...

Regular-sampled PWM techniques have been developed to reproduce the harmonic-elimination and harmonic minimization PWM characteristics. These new regular-sampled PWM control strategies significantly reduce the computational requirements for real-time microprocessor-based PWM implementation. This results in simplied and more efficient microprocessor softwarehardware requirements, leading to real...

This paper presents an influence issue improved by victimisation buck-boost convertor for BLDC motor drive as a value effective answer for low power applications. AN approach of speed management of BLDC motor by dominant the DC link voltage of VSI (Voltage supply Inverter) is employed. This facilitates the operation of VSI at fundamental change by victimisation the electronic commutation of BLD...

Solar energy is one of the important infinite source that maintains life on earth and is of clean energy. This energy can be converted to different forms as per our requirements. In this paper digital implementation of Photo Voltaic (PV) based cascaded boost converter (CBC)for voltage source inverter (VSI) fed induction motor is presented. The proposed PV model is based on a behavioral cell mod...

Open-ended winding induction machines fed from standard two-level Voltage Source Inverters (VSI) provide an attractive arrangement for AC drives. An alternative approach is to use a dual output Indirect Matrix Converter (IMC). It is well known that the IMC provides fully bidirectional power flow operation, with small input size filter requirements. Whilst a standard IMC consists of an AC-DC mat...