Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

10 results for “Simplex Method”
Set a search alert
Research ArticleOpen accessEvery word in the titleWeighted Centroid Modified Simplex and Linear Constrained Response Surface Optimization Methods for the Xbar-R Chart Variable DeterminationPongchanun LuangpaiboonProblem statement: Although economic Xbar-R chart designs do guarantee the minimal operating cost, they typically have poor levels of statistical performance measures. The obvious limitation of the economic design is that the Type I error rate seems to be very high for many situations and will cause a large number of false alarms. This situation leads to an investigation of … …Journal of Computer Science, Vol. 7, Issue 6 · 14 Jun 2011 · 7,115 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleVariable Neighborhood Simplex Search Methods for Global Optimization ModelsPongchanun LuangpaiboonProblem statement: Many optimization problems of practical interest are encountered in various fields of chemical, engineering and management sciences. They are computationally intractable. Therefore, a practical algorithm for solving such problems is to employ approximation algorithms that can find nearly optimums within a reasonable amount of computational time. Approach: In this study the hybrid methods combining the Variable Neighborhood Search … …Journal of Computer Science, Vol. 8, Issue 4 · 15 Feb 2012 · 6,510 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOptimization of Food Expenditures in Nigeria: A Case Study of Lafia, Nasarawa StateOlusola Collins Akeremale, Imam Akeyede, Ishaku Audu, Adekemi O. AkeremaleCurrently, the prices of commodities in Nigeria are consistently rising owing to several variables, including economic conditions, political influences, and technical progress. Consequently, the cost of essential items, including food, has risen significantly. Consequently, they often disregard nutritious dietary habits and fail to obtain adequate daily nutrients. This will lead to several repercussions, including diseases, disorders, and less vitality for … …American Journal of Applied Sciences, Vol. 22, Issue 1 · 12 Feb 2026 · 2,525 accessesView PDFCite
Research ArticleOpen accessIn the keywordsImproving an Electrostatic Powder Coating Process via Signal to Noise Response SurfacePongchanun LuangpaiboonProblem statement: In a coating process, the master plate referenced brightness or color shade was critical to the exterior appearance on aluminum alloy wheels. The quality measures of interest are the metallic paint thickness values on four areas. Because of these lower quality levels, the manufacturer has spent more on the cost of restudy or scrap as well as the … …American Journal of Applied Sciences, Vol. 7, Issue 11 · 8 Nov 2010 · 7,476 accessesView PDFCite
Research ArticleOpen accessIn the abstractTrends in the Causes of Meningitis/Encephalitis Analyzed Using the BioFire FilmArray PanelYoung Jun Hong, Bo Kyeung Jung, Jae Kyung KimCerebrospinal Fluid (CSF) infections can be caused by various pathogens, including bacteria, viruses, and fungi. Therefore, accurate and timely detection of infectious agents is critical for the effective treatment of CSF infections. The FilmArray Meningitis/Encephalitis (M/E) panel is a potential complementary diagnostic tool for detecting CSF pathogens. The aim of this study was to identify trends in the causes of … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 3 · 25 Jul 2024 · 4,884 accessesView PDFCite
Research ArticleOpen accessIn the abstractWhat is Missing in STD Screening in Hong Kong?Clement Leung-Kwok Chan, Wai Yee Chan, Christopher Hon Ki Cheng, Ping XiaThis retrospective analysis was to study the prevalence of Sexually Transmitted Diseases (STD) in a Reproductive Medical Center in Hong Kong. A total of 1190 patients were included in this study. Group 1A, couples had no symptoms but presented with subinfertility; Group 1B, the subfertile couples were positive for either Chlamydia trachomatis (CT) or Ureaplasma urealyticum (UU); Group 2, couples … …Current Research in Medicine, Vol. 7, Issue 2 · 11 Jan 2017 · 8,407 accessesView PDFCite
Research ArticleOpen accessIn the abstractDevelopment and Optimization of Plant Extract Loaded Nanoemulsion Mixtures for the Treatment of Inflammatory DisorderMukesh Gohel, Tejal Soni, Lal Hingorani et al.In current study, a nanoemulsion as drug delivery system (NE) of spray dried Boswellia Serrata Extract (BSE) was developed and characterized to compare it in vitro/Ex vivo diffusion with reference formulation. Pseudo-ternary phase diagrams were constructed by phase diagram by aqueous titration method, of which the evaluation method was improved for solubility, Droplet size and transmittance. The formulation of BSE-loaded … …Current Research in Drug Discovery, Vol. 1, Issue 2 · 26 Jan 2015 · 14,064 accessesView PDFCite
Research ArticleOpen accessIn the abstractProduction of a New Model for Evaluation of Iran Ecological Capabilities in Order to Establish Services and Civil Development ApplicationJ. Nouri, S. A. JoziThis study is aimed to design a new model for service and civil development application in order to be used in evaluation of Iran ecological capability studies. For this purpose in the first step, the frequency of sustainable and unsustainable ecological factors in Iran was known. In the next step, the Delphi method was used which is itself a branch … …American Journal of Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2004 · 6,513 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordOptimal Meshing of Structured Boundary Domains in Numerical AnalysesArnulf Kost, Kokou Tcharie, Ayité Senah Akoda Ajavon et al.The analysis of a practical problem using numerical methods such as Finite Element Method (FEM) or Boundary Element Method (BEM) involves the subdivision of the space occupied by a physical system (named domain) or its boundary into sub-domains or sub-boundaries called elements. This task, known as mesh generation or domain-discretization, is no more trivial if domains of real or industrial … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 4 · 23 Oct 2017 · 7,849 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordNelder-Mead Method with Local Selection Using Neighborhood and Memory for Stochastic OptimizationNoocharin Tippayawannakorn, Juta PichitlamkenWe consider the Nelder-Mead (NM) simplex algorithm for optimization of discrete-event stochastic simulation models. We propose new modifications of NM to reduce computational time and to improve quality of the estimated optimal solutions. Our means include utilizing past information of already seen solutions, expanding search space to their neighborhood and using adaptive sample sizes. We compare performance of these extensions … …Journal of Computer Science, Vol. 9, Issue 4 · 10 May 2013 · 6,121 accessesView PDFCite