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116 articles for “operations research”
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Research ArticleOpen accessIn the abstractCognitive Development of College Students and their Achievement in Geometry: An Evaluation using Piaget’s Theory and Van Hiele’s Levels of ThinkingRonald Sumaya DecanoThe study evaluated the cognitive development levels of college students and their achievement in Geometry using Piaget’s Test of Logical Operations and Van Hiele’s Levels of Thinking. The researcher employed quantitative approach to research. There were 105 respondents in which 71 of them fit the Van Hiele modified case/criterion (M3) 3 of 5 correct answers. Findings revealed that most of … …American Journal of Applied Sciences, Vol. 14, Issue 9 · 23 Sep 2017 · 9,902 accessesView PDFCite
Research ArticleOpen accessIn the abstractData Warehouse System to Support Condition Health Care of ElderlyRattanawadee PanthongMaeka Health Promotion Hospital conducts a survey on health conditions and collects the data involving activities or organization operations each year, particularly, the data on the elderly health care having too much. This might lead to difficulties in searching and analyzing the information. To solve this problem, it is essential to rely on tools and information technology in making a … …Journal of Computer Science, Vol. 20, Issue 12 · 27 Oct 2024 · 4,354 accessesView PDFCite
Research ArticleOpen accessIn the abstractUsing Wireless Networks and Internet of Things for Enhanced Monitoring of Students During Virtual ClassSulaiman Abdullah AlateyahThe entire educational model has undergone a significant change as a result of the Internet of Things (IoT)'s introduction to the educational sector. Universities have a significant chance to take advantage of the IoT technology in a variety of ways, including data collection and analysis to improve the educational experience, promote the achievement of learning objectives, and enhance overall school … …Journal of Computer Science, Vol. 20, Issue 6 · 15 Mar 2024 · 5,195 accessesView PDFCite
Research ArticleOpen accessIn the abstractBeyond Accidents: A Back-Analysis on Conveyor Belt Injury for a Better Design for Maintenance OperationsAlberto Martinetti, Leo A.M. van Dongen, Raffaele RomanoThe conveyor belt represents one of the most commonly used methods of transporting bulk materials today. As highlighted multiple times in research, the moving parts are a critical issue causing accidents and injuries and several of these are strictly related to the opportunity to enter in working zones during maintenance activities, considered high-risk activity due to the nature of the … …American Journal of Applied Sciences, Vol. 14, Issue 1 · 29 Dec 2016 · 8,455 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstimated Greenhouse Gases Emissions from Mobile and Stationary Sources in the Limestone and Basalt Rock Mining in ThailandDubsok Atima, Kittipongvises SuthiratMineral processing can become more environmentally sustainable by integrating practices that reduce all environmental impact of mining operations. Along with pollution problems, global climate change is presently one of the most important environment concerns. This research aimed to identify all potential sources and also compare the net emissions of greenhouse gases (GHGs) from the limestone and basalt rock mining operations … …American Journal of Environmental Sciences, Vol. 12, Issue 5 · 26 Oct 2016 · 8,294 accessesView PDFCite
Research ArticleOpen accessIn the abstractTunneling Operations, Occupational S&H and Environmental Protection: A Prevention Through Design ApproachDavide Labagnara, Alberto Martinetti, Mario PatruccoThe study refers on the main results of a research work that has been carried out by the Safety and Health group of the Department of Environment, Land and Infrastructure Engineering (DIATI) at the Politecnico di Torino, with reference to the substantial difference that exists between the case of an established absence of hazards due to the presence of noxious … …American Journal of Applied Sciences, Vol. 10, Issue 11 · 11 Sep 2013 · 6,768 accessesView PDFCite
Research ArticleOpen accessIn the abstractProtocols for Secure Routing and Transmission in Mobile Ad Hoc Network: A ReviewMohamed Othman, Salwa Aqeel Mahdi, Hamidah Ibrahim et al.Mobile ad hoc network security is a new area for research that it has been faced many difficulties to implement. These difficulties are due to the absence of central authentication server, the dynamically movement of the nodes (mobility), limited capacity of the wireless medium and the various types of vulnerability attacks. All these factor combine to make mobile ad hoc … …Journal of Computer Science, Vol. 9, Issue 5 · 25 May 2013 · 8,208 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Impact of Attitude Toward Watershed Management Operation on Level of People ParticipationB. M. Golrang, F. S. Lai, M. Rostami et al.Recent studies in many countries had display the influence of many factors including: Satisfaction, Knowledge, Demographic and Attitudinal variables in level of people participation. The main question here is, whether these factors would also be effective on people participation in Iran? The purpose of this research was to investigate communication factors influencing attitudes of farmers’ application of Watershed Management Operations … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 4 · 19 Nov 2012 · 8,053 accessesView PDFCite
Research ArticleOpen accessIn the abstractMathematical Optimum of the Audit SampleGeorgeta Ancuta Span, Irimie Emil PopaProblem statement: The primary objective of any audit mission is to obtain a high level of assurance on the fact that financial statements are prepared in accordance with a general financial reporting framework. Getting an absolute level of assurance is not possible due to the complexity and big number of transactions and operations found in practice. This research aims to … …American Journal of Applied Sciences, Vol. 9, Issue 8 · 2 Jul 2012 · 7,418 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplementation of Environmental Management Systems in the Extraction of Construction Aggregates from Gravel Pit LakesSerena Botta, Claudio Comoglio, Alberto Quaglino, Andrea TorchiaProblem statement: Mining operations are strategic and essential industrial activities which rely on the use of non renewable natural resources, causing several relevant interactions with the environment. Approach: The need to perform in compliance with even more stringent environmental legislation and to satisfy different stakeholders demands and pressures, is progressively leading the mining sector towards the implementation of Environmental Management … …American Journal of Environmental Sciences, Vol. 5, Issue 4 · 31 Aug 2009 · 7,320 accessesView PDFCite