نتایج جستجو برای: line sizing

تعداد نتایج: 420025  

2014
Shishir Dixit Laxmi Srivastava Ganga Agnihotri

Modern this paper proposes non dominated sorting genetic algorithm (NSGA-II) which has feature of adaptive crowding distance for finding optimal location and sizing of Static Var Compensators (SVC) in order to minimize real power losses and voltage deviation and also to improve voltage profile of a power system at the same time. While finding the optimal location and size of SVC, single line ou...

2014
P. LAKSHMI J. D. ANUNCIYA

This paper presents a congestion management methodology in deregulated power systems by optimal location and sizing of Unified Power Flow Controller (UPFC) in a transmission network. A multiobjective optimization problem has been developed by considering total congestion cost, power loss and system severity. A Fuzzy based approach has been proposed to identify the optimal location and sizing of...

Journal: :JORS 2014
Márcio A. F. Belo-Filho Franklina Maria Bragion Toledo Bernardo Almada-Lobo

Setup operations are significant in some production environments. It is mandatory that their production plans consider some features, as setup state conservation across periods through setup carryover and crossover. The modelling of setup crossover allows more flexible decisions and is essential for problems with long setup times. This paper proposes two models for the capacitated lot-sizing pr...

2012
Stana Kovačević

As one of the most complex steps in fabric production, sizing plays a very important role in the weaving process. The primary purpose of the sizing process is to obtain the warp threads that can successfully be woven without major damages which occur during the yarn passage through sliding metal parts of the weaving machine (Lord, 2003). It applies to the improvement of physical and mechanical ...

Journal: :Inf. Sci. 2006
Marco Ronchetti Giancarlo Succi Witold Pedrycz Barbara Russo

Early estimation of the size of a software product is extremely important. In this paper we analyze two software packages developed by a CMM level 3 software firm. We study if any property of analysis objects can be used to infer the size of the final code in an object-oriented environment. In both cases we find the number of methods well correlated with software size, in the sense that the cor...

Journal: :Operations Research 2010
Wilco van den Heuvel Albert P. M. Wagelmans

In this paper we analyze the worst case performance of heuristics for the classical economic lot-sizing problem with time-invariant cost parameters. We consider a general class of on-line heuristics that is often applied in a rolling horizon environment. We develop a procedure to systematically construct worst case instances for a fixed time horizon and use it to derive worst case problem insta...

2004
Ton Dekkers

Looking at the distribution of the costs of IT, the largest part of the budget is allocated to maintenance and enhancement projects. New development comprises between 30 to 50% of IT costs. Functional size measurement methods are mostly used for new development only. With some extensions to common size measurement methods like Function Point Analysis and COSMIC Full Function Point one can tackl...

Journal: :Informatica (Slovenia) 2007
Marjan Hericko Ales Zivkovic Zoltán Porkoláb

Software size is the fundamental metric for project planning. Effort and duration are calculated based on the size estimate. However, for a given software size, the actual development effort could be significantly different. The question is whether the increase in effort is due to the low productivity of the development team or higher product quality. While higher product quality is highly desi...

2008
Beatriz Marín Nelly Condori-Fernández Oscar Pastor Alain Abran

The measurement of the functional size of applications generated in MDA environments is a challenge for the software development industry. This paper presents the OO-Method COSMIC Function Points (OOmCFP), a measurement procedure that has been designed to measure the functional size of object-oriented applications generated from their conceptual models by means of model transformations.

2001
M. Casu M. Graziano G. Masera G. Piccinini M. Zamboni

The complexity of huge-scale integrated circuits allowed by technology scaling down breeds design problems for the diÆculty in managing deep-submicron drawbacks. Thermal e ects have increasing impact on power supply bus reliability, and e ective line sizing based on trustable lifetime evaluation is of basic importance. This work presents an analysis of the impact on electromigration of technolo...

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