نتایج جستجو برای: response surface methodology technique

تعداد نتایج: 2278396  

2004
Paola Manzini Marco Mariotti IZA Bonn

Rationalizing Boundedly Rational Choice: Sequential Rationalizability and Rational Shortlist Methods A sequentially rationalizable choice function is a choice function which can be obtained by applying sequentially a fixed set of asymmetric binary relations (rationales). A Rational ShortlistMethod (RSM) is a choice function which is sequentially rationalizable by two rationales. These concepts ...

2013
Xin Ye Thomas Eisenbarth

Low Entropy Masking Schemes (LEMS) have been proposed to offer a reasonable tradeoff between the good protection against side-channel attacks offered by masking countermeasures and the high overhead that results from their implementation. Besides the limited analysis done in the original proposals of LEMS, their specific leakage characteristics have not yet been analyzed. This work explores the...

2005
anatol n. kirillov toshiaki maeno

For any Lie algebra of classical type or type G 2 we define a K-theoretic analog of Dunkl's elements, the so-called truncated Ruijsenaars-Schneider-Macdonald elements, RSM-elements for short, in the corresponding Yang-Baxter group, which form a commuting family of elements in the latter. For the root systems of type A we prove that the subalgebra of the bracket algebra generated by the RSM-elem...

2013
Jian-Guo Zhang Ting-Ting Fang Zhao-Jun Wei

Cordycepin (3’-deoxyadenosine) is one of the most versatile metabolites of Cordyceps militaris due to its broad spectrum of biological activity. In this study, response surface methodology (RSM) was applied to optimize the medium components for the cordycepin production by submerged liquid culture. The optimal parameters for cordycepin production within the experimental range of the variables r...

Journal: :Communications in Statistics - Simulation and Computation 2008
Michael Donohue Ian Abramson Anthony Gamst

The property of synergy and its detection are discussed. A response surface is said to possess synergy if it is monotone in each argument and its level curves are convex. Detecting this property is particularly useful in the study of combination drug therapies where the goal is enhanced response or diminished side effect. One way to detect synergy is to fit a surface with linear level curves un...

1992
John J. Grefenstette

Genetic algorithms perform an adaptive search by maintaining a population of candidate solutions that are allocated dynamically to promising regions of the search space. The distributed nature of the genetic search provides a natural source of power for searching in changing environments. As long as sufficient diversity remains in the population the genetic algorithm can respond to a changing r...

1995
Anthony A. Giunta Robert Narducci Susan Burgee Bernard Grossman William H. Mason Raphael T. Haftka

A design methodology which uses a variable-complexity modeling approach in conjunction with response surface approximation methods has successfully been developed. This approach uses simple models to improve the accuracy of the response surface and reduce the number of analyses based on complex models required for constructing the surface. Simple models are rst used to eliminate \nonsense" port...

2013
BRADLEY JONES CHRISTOPHER J. NACHTSHEIM

Recently, Jones and Nachtsheim (2011) proposed a new class of designs called definitive screening designs (DSDs). These designs have three levels, provide estimates of main e↵ects that are unbiased by any second-order e↵ect, require only one more than twice as many runs as there are factors, and avoid confounding of any pair of second-order e↵ects. For designs having six factors or more, these ...

Journal: :IJADS 2012
Mohammad Mohajer Tabrizi Hamidreza Navidi Ali Salmasnia Cyrus Mohebbi

Buffer management (BM) is an inventory management methodology introduced by theory of constraints (TOC). In this practice, the retailer passes his demands to the vendor in ‘almost a daily manner’ and has a ‘dynamic inventory buffer’ that reflects the change in demand patterns allowing the vendor the opportunity to replenish his inventory and obtain some market information. In this paper, we con...

2013
Felipe Ortiz Juan C. Rivera Oscar O. Melo

A methodology is proposed to jointly model treatments with quantitative levels measured throughout time by combining the response surface and growth curve techniques. The model parameters, which measure the effect throughout time of the factors related to the second-order response surface model, are estimated. These estimates are made through a suitable transformation that allows to express the...

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