نتایج جستجو برای: undesirable variables
تعداد نتایج: 328155 فیلتر نتایج به سال:
Planning for electricity generation systems is a very important task and should take environmental and economic factors into account. This paper reviews the existing metrics and methods in evaluating energy sustainability, and we propose a sustainability assessment index system. The input indexes include generation capacity, generation cost, and land use. The output indexes include desirable an...
This paper develops slacks-based measure (SBM) and additive SBM (ASBM) to evaluate efficiency of decision making units (DMUs) in a two-stage structure with undesirable outputs and feedback variables from the internal perspective. The SBM model is linearized for a specific weight and the ASBM model is reformulated as a second order cone program. The target values for all inputs, outputs (both d...
The use of Brzier curves or Brzier surfaces as "faired" interpolation (approximation) curves or surfaces occasionally yields inflection points or changes of sign of the Gaussian curvature which are undesirable in some applications, notably the fairing of ship lines (surfaces) or the fairing of car body surfaces. In the following investigation we use a polarity to detect such undesirable points,...
This article reports the findings of an experiment designed to evaluate the effect of four questionnaire formats on the willingness of drivers convicted of drunken driving to admit to this socially undesirable behaviour. Four samples of convicted drunk drivers each received a different version of a mail questionnaire about driving behaviour and attitudes. Two versions of the questionnaire inclu...
Causality violations are typically seen as unrealistic and undesirable features of a physical model. The following points out three reasons why causal-ity violations, which Bonnor and Steadman identified even in solutions to the Ein-stein equation referring to ordinary laboratory situations, are not necessarily undesirable. First, a space-time in which every causal curve can be extended into a ...
Power transformers are still among the most costly and critical components in an electrical power network. Thus, the importance of a reliable condition assessment of these assets increases due to the aging of transformer fleets. The Sweep Frequency Response Analysis (SFRA) has become an important standard test and provides comprehensive information about the mechanical and electrical integrity ...
abstract introduction: in attention to post traumatic stress disorder as the most prevalent disorder among iran -iraq war veterans and expanded affect of sufficient and well sleeping on personal and social functions, we are going to find out which factors have significant relationship with low quality of sleep. among handicapped patients with ptsd. methods: this study is a eross- sectiona...
Very often children with learning difficulties show undesirable forms of behavior, which means any of the forms of behavior considered by the society to be striking and unacceptable, or in other words, those which disturb or hinder the process of education and rehabilitation. The objective of this research was to examine the possibilities of applying integrative therapy in the treatment of ment...
Aims: Elderly is an important period of human life, and the elderly population in Iran is increasing. Therefore, the present study was aimed to investigate the relationship between quality and lifestyle health promotion behaviors among the elderly in Hamadan, 2015. Instrument & Methods: This cross-sectional study was conducted on 230 retired elderly over 60 years selected by cluster sampling m...
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