نتایج جستجو برای: value system
تعداد نتایج: 2821548 فیلتر نتایج به سال:
in this paper, we solve a linear system of second-order boundary value problems by using the quadratic b-spline nite el- ement method (fem). the performance of the method is tested on one model problem. comparisons are made with both the analyti- cal solution and some recent results.the obtained numerical results show that the method is ecient.
the use of value engineering (ve) methodology in construction industry has grown significantly, mainly in view of its extensive benefits. the main task in evaluation phase of ve workshop is to assess alternative ideas, proposed for each function. this phase of ve, hence, could be deemed as a multi criteria decision making (mcdm) problem. this paper presents a fuzzy decision support system (dss)...
We present a methodology for characterization and an approach for computing the solutions of fuzzy linear systems with LR fuzzy variables. As solutions, notions of exact and approximate solutions are considered. We transform the fuzzy linear system into a corresponding linear crisp system and a constrained least squares problem. If the corresponding crisp system is incompatible, then the fuzzy ...
چکیده مقدمه:استئوآرتریت یکی از دلایل شایع اختلالات مفصل تمپورومندیبولار tmd)) است. تشخیص زودهنگام استئوآرتریت اهمیت زیادی دارد. آنالیز فرکتال روشی جهت ارزیابی ریزساختار استخوانی است. هدف این مطالعه، بررسی رابط? بین آنالیز فرکتال و شرایط rdc/tmd سر کندیل می باشد. مواد و روش کار: در این مطالعه 19بیمار خانم درمحدوده ی سنی 40-20 سال مبتلا به osteoarthritis مفصل تمپورومندیبولار و 20 خانم سالم (گ...
the main objective of this research was identifying an appropriate model for the work values in public services of iran within the framework of islamic value system. the basic in this study is: what are components and dimensions of the work values in public services of iran within the framework of islamic value system? in this basic research, data was gathered through filed and library data col...
مقدمه : هدف از این مطالعه مقایسه ی عملکرد والدین و مشکلات رفتاری در کودکان مبتلا و غیر مبتلا به بیماری بازگشت ادرار از مثانه به حالب مراجعه کننده به درمانگاه کودکان بیمارستان امیرکبیر اراک روش کار : این مطالعه یک مطالعه مورد – شاهدی است که روی 61 کودک مبتلا به اختلال شب ادراری اولیه و 61 کودک غیر مبتلا در محدوده سنی 14-4 سال انجام شد. پرسشنامه های ارزیابی سیاهه رفتاری کودک (cbcl) برای بررسی م...
introduction:guillain-barre syndrome(gbs) is the most common cause of acute flaccid paralysis. respiratory failure is the most serious short-term complication of gbs and invasive mechanical ventilation is required in 30% of patients.moreover,60% of those who are intubated develop major complications including pnemonia,sepsis,gi bleeding and pulmonary embolism. thus respiratory failure predictio...
One of the most important topic that consider in recent years by researcher is absolute value equation (AVE). The absolute value equation seems to be a useful tool in optimization since it subsumes the linear complementarity problem and thus also linear programming and convex quadratic programming. This paper introduce a new method for solving absolute value equation. To do this, we transform a...
in the past decade, a global demand for products from organic agriculture has increased rapidly. milk quality is of major interest for all parties. therefore, the objective of this study was to compare cow performance and product quality in conventional and organic system. twenty holstein dairy cows were allotted to one of 2 diet groups, which including: a conventional diet (con), and an organi...
air conditioning refrigerant r134a has value of global warming potential (gwp) 1300, which is much higher than mac directive (gwp below 150) passed in july 2006. this prompted a search for alternative refrigerant with gwp value less than 150. r1234yf is a new refrigerant which has lower gwp value of 4. effect of blower speed has been compared and flammability issue of r1234yf has been addressed...
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