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33 articles for “theoretical knowledge”

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Research ArticleOpen accessIn the abstractAn Improved Genetic Algorithm Based on Adaptive Repair Operator for Solving the Knapsack ProblemSunanda Gupta, M. L. GargProblem statement: Knapsack problem is a typical NP complete problem. During last few decades, Knapsack problem has been studied through different approaches, according to the theoretical development of combinatorial optimization. Approach: In this study, modified evolutionary algorithm was presented for 0/1 knapsack problem. Results: A new objective_func_evaluation operator was proposed which employed adaptive repair function named as repair and elitism … …Journal of Computer Science, Vol. 5, Issue 8 · 31 Aug 2009 · 7,719 accessesView PDFCite
Research ArticleOpen accessIn the abstractOn the Use of Rolling Element Bearings' Models in Precision MaintenanceIoannis S. Zotos, Theodore N. CostopoulosProblem statement: Rolling element bearings form a very important part of machinery. The increasing demands on their continuous reliable operation under diverse environments make maintenance a very important step towards the efficient use of them. To this end, precision maintenance is a very useful practice, since it deals not only with finding a possible fault of a machine, but also … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 7,419 accessesView PDFCite
Research NotesOpen accessAll words, across the recordThe Idea of Progress: A Theoretical and Concise Goal-Structure ModelRodolfo Henrique Cerbaro, Jamie Lyn WhislerThe idea of progress as it currently stands is not well understood. This is because it is taken to be both context-dependent and stands independently, without a formal structure. It is an idea which is applied in cases that can be as diverse as simply finishing an essay to the complex progress of humanity. If the idea appears in such … …Current Research in Psychology, Vol. 7, Issue 1 · 9 Aug 2016 · 10,212 accessesView PDFCite