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A Voltage Controlled PMBLDCM Drive Adjustable Speed using a Single-Stage PFC Half-Bridge Converter

ABSTRACT In this paper, a buck half-bridge DC-DC converter is used as a single-stage power factor correction (PFC) converter [9,10]for feeding a voltage source inverter (VSI) based permanent magnet brushless DC motor (PMBLDCM) drive. The front end of this PFC converter is a diode bridge rectifier (DBR) fed from single-phase AC mains. The PMBLDCM is […]

Photodegradation Effect on LLDPE/LDPE/PLA Blend Films

ABSTRACT The present study shows effect of nano calcium carbonate (nano-CaCO3) in LLDPE/LDPE/PLA blend compatibilized with MA-g-PE in photodegrdation. LLDPE/LDPE/PLA blend with and without n-CaCO3 were tested for durability towards weather condition. Prepared blends were exposed for 144 hours (hrs) in accelerated weatherometer. These analyses were completed in outdoor environmental condition like heat, moisture and […]

Correlation of Breakdown Strength Parameters of Solid Insulation using Artificial Neural Network (ANN)

ABSTRACT The objective of this work is to determine if a relationship could be found between dielectric strength and other basic properties of electrical insulating materials such as volume resistivity, dielectric constant or relative permittivity and dissipation factor or loss tangent, on empirical basis, by using variables predicted by basic theory. A simple equation to […]

An Empirical Analysis of the Effective Factors of the Production Efficiency in the Garments Sector of Bangladesh

ABSTRACT This paper represents the investigation of the causes of different problems of production through a surveying in different garments manufacturing industries in Bangladesh. Though Bangladesh is a second largest garments manufacturing country, it often fail to meet the production goals in due time. How these factors affect in a production line in a garments […]