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43 articles for “NP-complete problems”
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Research ArticleOpen accessIn the abstractIntegrating Gene Expression Programming and Geographic Information Systems for Solving a Multi Site Land Use Allocation ProblemKhalid A. EldrandalyProblem statement: Land use planning may be defined as the process of allocating different activities or uses to specific units of area within a region. Multi sites Land Use Allocation Problems (MLUA) refer to the problem of allocating more than one land use type in an area. MLUA problem is one of the truly NP Complete (combinatorial optimization) problems. Approach: … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,849 accessesView PDFCite
Research ArticleOpen accessIn the abstractFeedback of the Input Voltage in FDTC Control Using a Three-Level NPC-VSIR. Zaimeddine, E.M. BerkoukA new control structure for sensorless induction machine dedicated to electrical drives using a three-level voltage source inverter VSI-NPC is completely analysed. The amplitude and the rotating velocity of the flux vector could be controlled freely. Both fast torque and optimal switching logic could be achieved; the selection is based on the value of the stator flux and the torque. … …American Journal of Applied Sciences, Vol. 4, Issue 7 · 31 Jul 2007 · 6,687 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Dynamics of the Planar Cinematic Balanced Chain at the Plan Module 3RRelly Victoria Petrescu, Raffaella Aversa, Antonio Apicella, Florian Ion Tiberiu PetrescuIn some previous papers, the mechatronic module 3R, plan, is a basic module on which the complete, geometric, cinematic, dynamic calculation of the anthropomorphic robots, the most used today's industrial robots, is built. The importance of the study of anthropomorphic robots has also been signaled, being today the most widespread robots worldwide, due to its simple design, construction, implementation, operation … …Journal of Mechatronics and Robotics, Vol. 2, Issue 1 · 22 Jan 2018 · 7,111 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Front-End User Interface Layer Framework for Reactive Web ApplicationsZhixong Xiao, Chandana Prasad Withana, Abeer Alsadoon, Amr ElchouemiNowadays, people are relying more and more on web applications, such as Gmails, Google Map and Google Docs to complete their daily tasks. However, web applications often fail to provide reactive interactions with users. This paper explores the issues and problems of current web application frameworks and narrowed the research to the User Interface (UI) layer as it is the … …American Journal of Applied Sciences, Vol. 14, Issue 12 · 17 Dec 2017 · 8,675 accessesView PDFCite
Review ArticleOpen accessIn the abstractProcessing Skyline Queries in Incomplete Database: Issues, Challenges and Future TrendsYonis Gulzar, Ali A. Alwan, Norsaremah Salleh, Imad Fakhri Al ShaikhliIn many contemporary database applications such as multi-criteria decision-making and real-time decision-support applications, data mining, e-commerce and recommendation systems, users need query operators to process the data aiming at finding the results that best fit with their preferences. Skyline queries are one of the most predominant query operators that privileges to find the query results that return only those data … …Journal of Computer Science, Vol. 13, Issue 11 · 20 Nov 2017 · 8,002 accessesView PDFCite
Review ArticleOpen accessIn the abstractHistory of Aviation-A Short ReviewRelly Victoria Virgil Petrescu, Raffaella Aversa, Bilal Akash et al.The man has always wanted to be able to fly. The dream or although it has achieved, has not been reached yet fully. The fuse of the flight today is much higher than in the past, but is not yet complete. Although they have carried out the steps in the increase of the safety of a ship in flight, there … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 1 · 22 May 2017 · 16,578 accessesView PDFCite
Research ArticleOpen accessIn the abstractMesenchymal Stem Cell Transplantation for Retinal Degenerations and Dystrophies: Present and FutureEmma Ghazaryan, Shurong Wang, Yan Zhang et al.Retinal degenerations are the main causes of irreversible blindness in developed countries. Up to date the main pathological mechanisms of these diseases are not fully understood and consequently there is no complete treatment option for those diseases. In this aspect stem cells have drawn attention of many researchers and health care professionals. Considering ethical issues, safety and facile isolation Mesenchymal … …American Journal of Biochemistry and Biotechnology, Vol. 10, Issue 4 · 28 Nov 2014 · 6,766 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Planting Dates and Varieties on Growth and Yield of Broccoli During Rainy SeasonKaristsapol Nooprom, Quanchit SantiprachaBroccoli (Brassica oleracea var. italica) is one of the most popular vegetable crops in many countries of the world as its nutritional importance. It has the most exacting climatic and cultural requirements, which limit its commercial production to a few favored locations. In Thailand, broccoli has been expending in recent years and amount of increasing production. It is best planted … …American Journal of Agricultural and Biological Sciences, Vol. 8, Issue 4 · 19 Nov 2013 · 8,173 accessesView PDFCite
Research ArticleOpen accessIn the abstractSequential Remediation Processes for Effective Removal of Oil from Contaminated SoilsDeepika Dave, Reema Alharathi, Abdel GhalyProblem statement: Over 2.2 billions of oil and oil products were transported every year and often these activities can result in air, water and soil contamination. Expousure to petroleum products can cause health problems to humn and animals and affect marine animals and wildlife habitats. Approach: The objective of this study was to developed a technology for the remediation of … …American Journal of Environmental Sciences, Vol. 7, Issue 5 · 18 Nov 2011 · 8,183 accessesView PDFCite
Research ArticleOpen accessIn the abstractModel Development for Health Promotion in the Elderly Participating in CommunitiesSupat Jampawai, Somporn Pothinam, Manop Kanato et al.Problem statement: The problem of the research derives from a lack of research study to develop the suitable model for health promotion in the elderly and examine factors concerning the health promotion in the elderly. This research aimed to study and develop suitable health promotion model for elderly participating in communities and examine factors related to the health promotion of … …American Journal of Applied Sciences, Vol. 8, Issue 9 · 30 Jul 2011 · 7,463 accessesView PDFCite