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Article
Fuzzy Reliability-Vulnerability for Evaluation of Water Supply System Performance.

Authors: S. A. Mutlag --- A. H. Kassam
Journal: Anbar Journal of Engineering Sciences مجلة الأنبار للعلوم الهندسية ISSN: 19979428 Year: 2019 Volume: 8 Issue: 1 Pages: 72-82
Publisher: University of Anbar جامعة الانبار

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Abstract

The reliability of water supply system is a critical factor in the development and the ongoing capability to succeed in life and people's health. Determining of its, with high certainty, for performance of water supply system is developed to ensure the sustainability of system. Reliability (Re) plays a great role in evaluation of system sustainability. The probability approaches have been used to evaluate the reliability problems of systems. The probability approach is failed to address the problems of reliability evaluation that comes by subjectivity, human inputs and lack of history data. This research proposed two models; I) traditional model: fuzzy reliability measure suggested by Duckstein and Shresthaand then developed by El-Baroudy; and II) developed model: fuzzy reliability-vulnerability model. The two models implemented and evaluation of water supply system by using two hypothetical systems (G and H). System (G) consists of a single pump and System (H) consists of a two parallel pumps. Triangular and trapezoidal membership functions (MFs) are used to investigate of the reliability measure to the form of the membership function. The results agree with expectations that the reliability of parallel component system {ReH (0.53)} is higher than the reliability of single component system {ReG (0.47)}. Moreover, the result by using fuzzy set reduces the effect of subjectively in process of decision-making (DM). The fuzzy reliability vulnerability is able to handle different fuzzy representations and different operation environment of system


Article
Evaluating ,Improving , Organization , Environmental , Management system , performance
تقييم ، أداء أنظمة ، إدارة البيئة ،منظمات الأعمال ، الأداء

Author: Ahmed A. Al Rashed احمد علي الراشد
Journal: Managerial Studies Journal دراسات ادارية ISSN: 98612076 Year: 2012 Volume: 4 Issue: 8 Pages: 127-173
Publisher: Basrah University جامعة البصرة

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Abstract

The general interesting in evaluating and improving the organization environmental management systems (E.M.S.) to reach the desired level in such a way that is compatible with the (ISO14000) was the motive to study the Iraqi organizations (the oil sector) environmental management systems by comparing between the environmental activities and practices performance indexes through an experimental scenarios .The study reach to that the shortage of the environmental planning processes that caused the failure in executing the environmental policy in the Iraqi organizations .

إن الاهتمام العام بتقييم وتحسين أداء أنظمة إدارة البيئة (E.M.S.) في منظمات الأعمال من أجل الارتقاء بالمستوى المطلوب لأدائها بشكل يتوافق مع معايير منظمة الايزو الدولية في ضمن سلسلة إصداراتها (ISO14000) قد حفز على دراسة أنظمة إدارة البيئة في منظمات الأعمال العراقية (القطاع النفطي) باستخدام سيناريوهات تجريبية لمقارنة مؤشرات أداء الأنشطة والممارسات البيئية لها، وخلصت الدراسة إلى بيان القصور في عمليات التخطيط البيئي الذي أدى إلى فشل تنفيذ السياسات البيئية في منظمات الأعمال العراقية .

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