منابع مشابه
Global Language for Global Problems
Although-or perhaps because-environmental health concerns affect every person on the planet, scientists often suffer a modern day Tower of Babel syndrome, using a diversity of terms in all different languages to describe the same ideas. So European, American, and international agencies have decided to collaborate on the development of a global multilingual environmental thesaurus to eliminate t...
متن کاملglobal results on some nonlinear partial differential equations for direct and inverse problems
در این رساله به بررسی رفتار جواب های رده ای از معادلات دیفرانسیل با مشتقات جزیی در دامنه های کراندار می پردازیم . این معادلات به فرم نیم-خطی و غیر خطی برای مسایل مستقیم و معکوس مورد مطالعه قرار می گیرند . به ویژه، تاثیر شرایط مختلف فیزیکی را در مساله، نظیر وجود موانع و منابع، پراکندگی و چسبندگی در معادلات موج و گرما بررسی می کنیم و به دنبال شرایطی می گردیم که متضمن وجود سراسری یا عدم وجود سراسر...
Global optimization of fractional posynomial geometric programming problems under fuzziness
In this paper we consider a global optimization approach for solving fuzzy fractional posynomial geometric programming problems. The problem of concern involves positive trapezoidal fuzzy numbers in the objective function. For obtaining an optimal solution, Dinkelbach’s algorithm which achieves the optimal solution of the optimization problem by means of solving a sequence of subproblems ...
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The Medical Journal of Australia ISSN: 0025-729X 18 March 2013 198 5 67-67 ©The Medical Journal of Australia 2013 www.mja.com.au Editors Choice uch has been written about antimicrobial resistance and the measures we must take to prevent an era in which infections become untreatable. Despite these longstanding concerns, there has been a steady rise in antimicrobial resistance globally, threateni...
متن کاملA New Hybrid Flower Pollination Algorithm for Solving Constrained Global Optimization Problems
Global optimization methods play an important role to solve many real-world problems. Flower pollination algorithm (FP) is a new nature-inspired algorithm, based on the characteristics of flowering plants. In this paper, a new hybrid optimization method called hybrid flower pollination algorithm (FPPSO) is proposed. The method combines the standard flower pollination algorithm (FP) with the par...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 2000
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.108-a302a