نتایج جستجو برای: machine availibility constraints
تعداد نتایج: 440822 فیلتر نتایج به سال:
The present paper suggests an application of ontologies in the analysis of a literary phenomenon. Starting from the needs of humanistic research and from the availibility on the Web of Language Resources, the adoption of such methodology, whose reference tool is an ontology, has led to a deeper analysis of the “Dualism Truth vs. Propaganda” in Karl Kraus’s writings and of the novel “Cloud, cast...
A cold-induced gene, peaci11.8, was isolated by differential screening of a subtracted cDNA library from cold-acclimated etiolated seedlings of pea (Pisum sativum L.). The expression of peaci11.8 gene was investigated. The accumulation of the transcripts began within 6 h of cold treatment and peaked between 4 and 10 days of treatment. The expression of this gene was rapidly down-regulated after...
Title of Document: HOW THE AVAILABILITY OF NUTRIENTS AND ENERGY INFLUENCE THE BIODIVERSITY OF CAVE ECOSYSTEMS Katie Schneider, Ph.D., 2009 Directed By: Dr. William F. Fagan, Professor, Department of Biology Resource constraints can affect species on multiple levels. In this dissertation, I combine laboratory experiments, an ecosystem-level manipulation experiment and statistical modeling to exa...
Single-Machine Maintenance Activity Scheduling with Convex Resource Constraints and Learning Effects
In this paper, the single-machine scheduling problems under common and slack due date assignments are studied, where actual processing time of job needs to consider some factors, such as convex resource allocation, maintenance activity, learning effects. The goal study is find optimal sequence, activity location, allocation (flow allowance). objective function (1) minimize sum cost (including w...
In this paper, a due date assignment scheduling problem with precedence constraints and controllable processing times in uncertain environment is investigated, in which the basic processing time of each job is assumed to be the symmetric trapezoidal fuzzy number, and the linear resource consumption function is used.The objective is to minimize the crisp possibilistic mean (or expected) value of...
in order to distinguish between benign and malignant types of pigmented skin lesions, computerized procedures have been developed for images taken by different equipment that the most available one of them is conventional digital cameras. in this research, a new procedure to detect malignant melanoma from benign pigmented lesions using macroscopic images is presented. the images are taken by co...
The purpose of the paper is to present the potentialities in terms of the control of a new kind of PM synchronous machine. With five phases and electromotive forces whose first (E1) and third (E3) harmonics are of similar amplitude, the studied machine, so-called bi-harmonic, has properties that are interesting for traction machine payload. With three-phase machines, supplied by a mono-harmonic...
The need of realistic models to evaluate the availability of multi-state, multi-output plants is felt in many advanced industries such as the nuclear, aerospace, oil and chemical ones. Indeed, often the complexity of the plant and of its maintenance and recon guration policies is such to render unfeasible its reliability/availibility evaluation by analytical models. In this paper we consider th...
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