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142 results for “uncertainty”
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Research ArticleOpen accessIn the abstractClimate Change and its Implications to National SecurityMamunur Rashid, Joy Jacqueline Pereir, Rawshan Ara Begum et al.Problem statement: Climate change is increasingly one of the most serious national security threats which will have significant impacts on natural and coastal resources, ecosystem, human health and settlements, thereby affecting human wellbeing. At the same time, it is likely to influence of large scale human migration, economic and social depression over scarce natural resources and political systems necessary involve … …American Journal of Environmental Sciences, Vol. 7, Issue 2 · 26 May 2011 · 8,074 accessesView PDFCite
Research ArticleOpen accessIn the abstractWhat Else do Epileptic Data RevealRamalingam ShanmugamProblem statement: Aggregating and analyzing data of all patients using statistical methodologies as often done in macro sense would be not useful when physician’s professional interest was only to provide the best medical care to the patient. For this purpose, individual data of the involved patient should be analyzed and modeled in a micro sense for the physician to notice … …Current Research in Medicine, Vol. 2, Issue 1 · 29 Mar 2011 · 7,303 accessesView PDFCite
Research ArticleOpen accessIn the abstractSliding Mode Control with PID Tuning Technique: An Application to a DC Servo Motor Position Tracking ControlTossaporn Chamsai, Piyoros Jirawattana, Thana RadpukdeeProblem statement: In this study, a combination of a classical Sliding Mode Control (SMC) and a PID tuning technique with low-pass filter is developed for a position tracking control of a DC servo motor. Approach: The DC servo motor will be used to adjust the throttle angle of the gasoline engine in our laboratory. To control the engine speed to … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 8,087 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessing the Applicability of Landslide Databases for Hazard Management Using Objective and Subjective Models: Australian Geoinformatic CaseM. OwneghProblem statement: In order to assess the applicability of Australian landslide databases as a hazard management support system, current hard and soft literature and data sources were screened. This assessment resulted in the selection of four main data bases including national landslide database (A), Peril Aus ІІ (B), the Cities project (C) and analytical study of Fell (D). Approach: In … …Current Research in Geoscience, Vol. 1, Issue 1 · 30 Jun 2010 · 10,356 accessesView PDFCite
Research ArticleOpen accessIn the abstractStochastic Optimization for Portfolio Selection Problem with Mean Absolute Negative Deviation MeasureAnton Abdulbasah Kamil, Adli Mustafa, Khlipah IbrahimProblem statement: The most important character within optimization problem is the uncertainty of the future returns. Approach: To handle such problems, we utilized probabilistic methods alongside with optimization techniques. We developed single stage and two stage stochastic programming with recourse. The models were developed for risk adverse investors and the objective of the stochastic programming models is to minimize the … …Journal of Mathematics and Statistics, Vol. 5, Issue 4 · 31 Dec 2009 · 6,950 accessesView PDFCite
Research ArticleOpen accessIn the abstractTrade and Precaution: Their Progressive InterlaceIsh Puneet SinghProblem statement: The principle of precaution has developed in International Law, as it has been present in either explicit or implicit forms in most of the celebrated international treaties dealing with the protection of the environment, over the past two decades. In spite of the huge recognition that this principle has got through incorporation, in the international order, this principle … …American Journal of Economics and Business Administration, Vol. 1, Issue 4 · 31 Dec 2009 · 7,950 accessesView PDFCite
Research ArticleOpen accessIn the abstractLot-Sizing Decisions under Trade Credit Depending on the Ordering Quantity in Fuzzy Annual DemandChui-Yu Chiu, Zhi-Ping Lin, Yi LinProblem statement: In reality, there are of various products such as liquids, volatile, medicines and materials, in which the rate of deterioration is very large. However, little attention has been mentioned what the effects of deterioration occur in most inventory systems. Also, the loss of the deterioration should not be neglected as an important issue. Approach: In this study, we … …American Journal of Applied Sciences, Vol. 6, Issue 12 · 31 Dec 2009 · 6,767 accessesView PDFCite
Research ArticleOpen accessIn the abstractHyperspectral Remote Sensing for Tropical Rain ForestKamaruzaman Jusoff, Kasawani IbrahimProblem statement: Sensing, mapping and monitoring the rain forest in forested regions of the world, particularly the tropics, has attracted a great deal of attention in recent years as deforestation and forest degradation account for up to 30% of anthropogenic carbon emissions and are now included in climate change negotiations. Approach: We reviewed the potential for air and spaceborne hyperspectral … …American Journal of Applied Sciences, Vol. 6, Issue 12 · 31 Dec 2009 · 8,581 accessesView PDFCite
Research ArticleOpen accessIn the abstractNovel Method of the Combination of Forecasts Based on Rough SetsEslam Faik Ahmed, Wang Jia Yang, Maan Younis AbdullahProblem statement: A study in Analytic Hierarchy Process (AHP) had shown the problem of quantify the qualitative and the side Combined. Approach: So that problems were better resolved. The rough sets theory and AHP was introduced in the study, furthermore, these were united to create a completely new method of combination forecasts. Results: The results of numerical examples were shown … …Journal of Computer Science, Vol. 5, Issue 6 · 30 Jun 2009 · 7,008 accessesView PDFCite
Research ArticleOpen accessIn the abstractEuropean Union and a Cost Benefits Analysis for its Members: The Case of Historic GreeceIoannis N. KallianiotisProblem statement: This study tried to determine the cost and benefits of Greece before and after joining the European Union and some of the problems that the current European (and the prospective Euro-Asian) Union has created to all European citizens. Approach: The most severe ones were the social chaos, which was increasing every day, due to the current financial crisis … …American Journal of Economics and Business Administration, Vol. 1, Issue 2 · 30 Jun 2009 · 7,740 accessesView PDFCite