This paper presents an implementation of open loop and closed loop control of Quadratic boost converter using PID controller.  Quadratic boost converter consists of boost converter and fly back converter driven by a single switch. Quadratic boost converter QBC is designed especially for regulating the DC interface between various micro sources and dc-ac inverter to electricity grid. Quadratic b...

The present study intended to compare the complaint responses used by President Rouhani and President Obama in the Iranian and US news interview contexts. For this purpose, Boxer’s (1993) six types of indirect complaint responses were adopted: ‘ignorance’, ‘questions’, ‘topic switch’, ‘contradiction’, ‘joke/teasing’, ‘advice/lecture’ and ‘agreement/commiseration’. The transcripts of the live ne...

conclusions the established method has an acceptable performance in quantifying yb-1. in addition, serum yb-1 may aid in the diagnosis of hcc. results the developed method was linear to 150 μg/l of yb-1 with a minimum detection limit of 0.01 μg/l. the average recoveries were between 93.9% and 109.0%. the mean intra- and inter-assay coefficients of variation (cvs) were 4.0-4.8% and 8.2-10.2%, re...

n-methylol dimethyl phosphonopropionamide (mdpa) is one of the most utilized fire resistant (fr) finishes for cotton fabrics, utilized as part of a formulation with trimethylol melamine (tmm) to acquire better crosslinking and enhanced fr properties. the system parameters of the finishing treatment were upgraded for better fr properties and low mechanical loss to the fabric by the response surf...

abstractbackground: delivering the radiation dose to the target volume and minimizing the dose to normal tissues are the main objectives in radiotherapy. the aim of our study is to enhance the contrast of the portal image to increase the accuracy of delineation of the organs in the irradiation field.   methods: the software was written based on local enhancement of the pixel values in image mat...