نتایج جستجو برای: equivalent variable cost
تعداد نتایج: 761104 فیلتر نتایج به سال:
Variable reluctance energy harvester (VREH) is a good candidate of transducers to transform the environmental into electricity. VREHs act based on electromagnetic induction due variation air-gap with rotation wheel. This paper presents an accurate analytical model magnetic equivalent circuit (MEC) and conformal mappings (CMs) for modeling VREHs, which have large air-gap. The geometry analyzed V...
National Use of Proton Pump Inhibitors From2007 to 2011 Proton pump inhibitors (PPIs) are a class of therapeutically equivalent medications when used at equivalent doses.1,2 Despite this, high-cost PPIs continue to be used when lowcost equivalents are available. We sought to estimate the national loss associated with the use of high-cost PPIs over their lower-cost alternatives. Furthermore, we ...
Background and purpose: Blood is a life saving product and has no equivalent. Limitation time for storing and cost of typing and cross matched in respect of lab equipment and personnel, may lead to importance of proper request and use of them. Methods and materials: In a cross sectional descriptive study, 500 patients with elective surgery were participated. Variable and data collection were...
In this paper we consider single machine scheduling problems with a common due-date for all jobs, arbitrary monotone earliness and tardiness costs and arbitrary breakdown and repair processes. We show that the problem is equivalent to a deterministic one without breakdowns and repairs and with an equivalent cost function of a job's completion time. A V-shaped schedule without idle times is show...
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