نتایج جستجو برای: scale optimization

تعداد نتایج: 876181  

Introduction and purpose: Optimization in Primary and Secondary Control Scale designed at 1998 by Heckhausen and colleagues in Germany. Therefore, this study was designed to assess psychometric properties of Optimization in Primary and Secondary  Control Scale (OPS) in older adults. Material and Methods: This descriptive study used convenience sampling method, adopted from the theory of...

Journal: :international journal of environmental research 2012
kh. ashrafi m. shafiepour l. ghasemi b. araabi

the objective of this paper is to develop an artificial neural network (ann) model which can beused to predict temperature rise due to climate change in regional scale. in the present work data recorded overyears 1985-2008 have been used at training and testing steps for ann model. the multilayer perceptron(mlp) network architecture is used for this purpose. three applied optimization methods a...

Journal: :ژورنال بین المللی پژوهش عملیاتی 0
h. nozari a. aliahmadi m. jafari-eskandari gh. khaleghi

in this paper, we introduce a model  to optimization of milk run system that is one of vrp problem with time window and uncertainty in inventory. this approach led to the routes with minimum cost of transportation while satisfying all inventory in a given bounded set of uncertainty .the problem is formulated as a robust optimization problem. since the resulted problem illustrates that grows up ...

Journal: :Journal of Optimization Theory and Applications 1996

Journal: :bulletin of the iranian mathematical society 0
m. ahookhosh faculty of mathematics‎, ‎university of vienna‎, ‎oskar-morge-nstern-platz 1‎, ‎1090 vienna‎, ‎austria. k. amini department of‎ ‎mathematics‎, ‎razi university‎, ‎kermanshah‎, ‎iran. m. kimiaei department of‎ ‎mathematics‎, ‎asadabad branch‎, ‎islamic azad university‎, ‎asadabad‎, ‎iran. m. r. ‎peyghami k.n. toosi university of department of‎ ‎mathematics‎, ‎k‎. ‎n‎. ‎toosi university of technology‎, ‎p.o‎. ‎box 16315-1618‎, ‎tehran‎, ‎iran.

this study concerns with a trust-region-based method for solving unconstrained optimization problems. the approach takes the advantages of the compact limited memory bfgs updating formula together with an appropriate adaptive radius strategy. in our approach, the adaptive technique leads us to decrease the number of subproblems solving, while utilizing the structure of limited memory quasi-newt...

Journal: :international journal of industrial engineering and productional research- 0
amin vahidi tehran, iran, tel: +989183161027 alireza aliahmadi tehran, iran, tel: +989183161027 mohammad reza hamidi tehran, iran, tel: +989183161027 ehsan jahani tehran, iran, tel: +989183161027

this paper offers an approach that could be useful for diverse types of layout problems or even area allocation problems. by this approach there is no need to large number of discrete variables and only by few continues variables large-scale layout problems could be solved in polynomial time. this is resulted from dividing area into discrete and continuous dimensions. also defining decision var...

Journal: :IEEE Transactions on Control of Network Systems 2020

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