The paper presents the DQ axis with Fourier analysis (DQF) algorithm to identify harmonic quantities for hybrid power filters. This algorithm is a combination of the advantages of DQ axis method and sliding window Fourier analysis (SWFA). This paper also presents the harmonic elimination by using the DQF algorithm for both three-phase balanced and unbalanced systems. The results show that the u...

1. Abstract In this publication factors are evaluated that determine the color consistency of a digital contract proofing system. Based on these factors, a complete quality control approach, called “quality managed proofing”, is presented. This is achieved through three main steps. A calibration step offers the tools to bring a proofer into a standard condition, for which a predefined tonal res...

The most complete definition for the voltage unbalance is using complex voltage unbalance factor (CVUF) that consists of its magnitude and angle. Unfortunately, the definition did not distinguish between undervoltage and overvoltage unbalance conditions. In this paper, the analysis of the motor is performed using the method of symmetrical component and MATLAB software is used to investigate the...

In today’s competitive business environment, it is extremely important to offer customers exactly the products they want. Software product lines have the potential to enable companies to offer a larger variety of products while still being able to manage the complexity caused by this increased number of products. But offering a large number of variants does not necessarily mean increased profit...

A feature extraction method using the chaincode representation of fingerprint ridge contours is presented. The representation allows efficient image quality enhancement and detection of fine minutiae feature points. The direction field is estimated from a set of selected chaincodes. The original gray-scale image is enhanced using a dynamic filtering scheme that takes advantage of the estimated ...

the selection of high yielding varieties with good stability‏ ‏is an important objective in rice breeding ‎programs. the grain yield of eight rice lines with a check (nemat) were compared‎‏ ‏on six locations of gilan ‎and mazandaran provinces during two years, using rcbd with four replications. combined analysis of ‎variance showed that the effect of variety and year ‎‏×‏‎ location ‎‏×‏‎ variet...

Monitoring speech quality in telephone networks is a two-step procedure. First, all data which are relevant for speech quality have to be measured during network operation. Then, models can be defined which calculate quality indices on the basis of the measurements. This talk will give an overview of monitoring approaches related to speech communication quality, which is one component of the qu...