In this paper, a soft-switched three-phase resonant converter with low quality factor (Q) design is proposed for Photovoltaic (PV) energy harvesting systems very wide range of operating conditions. Due to the (Q ≤ 1), voltage stress across capacitors drastically reduced. However, major challenge using Q switching frequency required operation over load and input order reduce range, paper introdu...

In this paper, we present a work based on the computational load distribution among the homogeneous nodes and the Hub/Sink of Wireless Sensor Networks (WSNs). The main contribution of the paper is an early decision support framework helping WSN designers to take decisions about computational load distribution for those WSNs where power consumption is a key issue (when we refer to "framework" in...

This research examines the strengthening efficiency of prestressed concrete dapped end beam with opening under monotonic point load. The study concerns position relative to end, shape opening, as circle or square, in addition, effect CFRP around opening. experimental program consisted testing nine scaled down specimens single near end. Beam one control and remaining eight beams classified into ...

investigations were carried out to evaluate the performance of direct injection diesel engine with medium grade low heat rejection (lhr) combustion chamber and 3 mm air gap insulated piston, 3 mm air gap insulated liner, and ceramic coated cylinder head [ceramic coating with the thickness of 500 µ was made on the inside portion of the cylinder head].the engine had different operating conditions...

This paper proposes a simplified equivalent circuit model that can be used in the presentation of characteristic harmonic components generated by full wave diode rectifiers. In the model, the load current is assumed to be constant as in many industrial applications. In order to obtain an accurate and exact analysis, the proposed model involves both current harmonics on AC side and voltage harmo...

This paper presents the results of experimental work carried out to evaluate the distribution of cold and hot exhaust gas recirculation between cylinders in a DI diesel engine. The experiments have been conducted on a 3.99 liters turbocharged DI diesel engine under full load condition at 1900rpm in order to distinguish and quantify some effects of hot and cooled EGR with various rates on the EG...

This paper presents a multiobjective fuzzy genetic algorithm optimization approach to design the submersible induction motor with two objective functions: the full load torque and the manufacturing cost. A multiobjective fuzzy optimization problem is formulated and solved using a genetic algorithm. The optimally designed motor is compared with an industrial motor having the same ratings. The re...

A new zero-voltage zero-current switching (ZVZCS) full-bridge phase-shifted PWM converter with controlled output rectifier is presented in this paper. Zero-voltage turn-on and zero-current turn-off for all power switches of the inverter is achieved for full load range from no-load to short circuit by using new secondary energy recovery clamp and modified PWM control strategy. Moreover by adding...

With IEEE 802.1S Multiple Spanning Tree Protocol, an Ethernet operator can define different network regions. A Common Spanning Tree (CST) is defined in such a way that a link failure inside a region does not affect the CST outside the region and additional Spanning Trees inside each region can be configured to achieve better load balance. We propose a procedure to determine the MSTP parameters ...