نتایج جستجو برای: equivalent variable cost

تعداد نتایج: 761104  

Journal: :The Transactions of The Korean Institute of Electrical Engineers 2011

2009
Philip W. Howard

The prevalence of multicore computers is leading to an increase in the amount of concurrent software. Unfortunately, parallelization does not necessarily improve performance. A concurrent program may run slower than the sequential equivalent. It may even scale negatively performance may get worse as more processors are added. It is important to understand the causes of this poor performance bec...

  The aim of this study is to calculate the marginal private and social costs of two thermal power plants in Isfahan region for a particular day in January 2010. For this purpose a nonlinear planning model with linear constraints has been used. The objective function (social cost) which is a twofold objective function is calculated by the summation of variable costs and external costs of power ...

2012
Paul P.-Y. Wu

This paper presents Multi-Step A* (MSA*), a search algorithm based on A* for multi-objective 4D vehicle motion planning (three spatial and one time dimension). The research is principally motivated by the need for offline and online motion planning for autonomous Unmanned Aerial Vehicles (UAVs). For UAVs operating in large, dynamic and uncertain 4D environments, the motion plan consists of a se...

Journal: :international journal of civil engineering 0
m. biglari civil engineering department, school of engineering, razi university, kermanshah, iran, p. o. box: 67149-67346 i. ashayeri civil engineering department, school of engineering, razi university, kermanshah, iran, p. o. box: 67149-67346

seismic ground motion is profoundly affected by geometrical and mechanical properties of soil deposits overlaying bedrock. local seismic ground response of saturated soil deposits was studied in literature by applying the effects of soil stress state and index properties on the strain-dependent normalized shear modulus reduction, g/g0, and damping ratio, d, curves in an equivalent linear analys...

Journal: :تحقیقات مهندسی کشاورزی 0
نادر نادری عضو هیئت علمی بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی سمنان (شاهرود) علیرضا محمدی عضو هیئت علمی بخش تحقیقات اصلاح و تهیه نهال و بذر مرکز تحقیقات کشاورزی سمنان (شاهرود)

this research was conducted at the shahrood agricultural research center in 1382 and 1383 to study the effect of alternate furrow irrigation on potato yield and its economic evaluation. the experimental design was a randomize complete block design and the treatments were: every furrow irrigation (efi), fixed alternate furrow irrigation (fafi), variable alternate furrow irrigation (vafi), fixed ...

Objectives: Psychotropic drug use in the elderly with chronic schizophrenia is an important issue in the field of psychiatry. The main goal of this study was to clarify the pattern of such drug use in these patients, in order to consider such therapy plan and focus on its cost attributing measures, for a more reasonable quality of care program. Methods: In this descriptive study, participant...

M. Farangi M. H. Pakzamir M. Zahedifar

Silicon nanowire (SiNW) arrays were produced by electroless method on polycrystalline Si substrate, in HF/ AgNO3 solution. Although the monocrystalline silicon wafer is commonly utilized as a perfect substrate, polycrystalline silicon as a low cost substrate was used in this work for photovoltaic applications. In order to study the influence of etching time (which affects the SiNWs length) on d...

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