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75 articles for “atmospheric”

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Research ArticleOpen accessIn the abstractInfluence of Transport Phenomena on Pollutants Concentration in Mediterranean Tunisian RegionsKarim Bouchlaghem, Blaise Nsom, Jean-Francois DorvilleThe objective of this study is to investigate the origin of the polluted air masses in the Tunisian Mediterranean regions and to characterize the atmospheric conditions and the transport and dispersion mechanisms that give rise to pollution events. For this end, we conducted continuous measurements campaigns of surface ozone concentration and meteorological parameters during summer 2011 using mobile and fixed … …American Journal of Environmental Sciences, Vol. 9, Issue 6 · 23 Jan 2014 · 6,702 accessesView PDFCite
Research ArticleOpen accessIn the abstractBAYESIAN MODEL AVERAGING WITH MARKOV CHAIN MONTE CARLO FOR CALIBRATING TEMPERATURE FORECAST FROM COMBINATION OF TIME SERIES MODELSHeri Kuswanto, Mega Rahmatia SariGlobal warming is an important issue related to the climate and weather forecast. It is shown by significantly increasing the atmospheric temperature level. Hence, improving the forecast accuracy of temperature is an important issue. The forecast is commonly done by performing a deterministic forecast meaning that the system will generate a point forecast without taking into account the uncertainty induced … …Journal of Mathematics and Statistics, Vol. 9, Issue 4 · 29 Nov 2013 · 7,085 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplementation of Fuzzy Logic Maximum Power Point Tracking Controller for Photovoltaic SystemRasoul Rahmani, Mohammadmehdi Seyedmahmoudian, Saad Mekhilef, Rubiyah YusofIn this study, simulation and hardware implementation of Fuzzy Logic (FL) Maximum Power Point Tracking (MPPT) used in photovoltaic system with a direct control method are presented. In this control system, no proportional or integral control loop exists and an adaptive FL controller generates the control signals. The designed and integrated system is a contribution of different aspects which includes … …American Journal of Applied Sciences, Vol. 10, Issue 3 · 5 Mar 2013 · 7,880 accessesView PDFCite
Research ArticleOpen accessIn the abstractThreat of the Health Quality of Garden Produces Linked to Pollution by Toxic Metals on Some Gardening Sites of BeninKoumolou Luc, Edorh A. Patrick, Agbandji Lucien et al.Problem statement: Water and soil are vital resources used in agriculture. Current data establish a link between the pollution of soil, water and public health. For this reason, this study attempted to establish a link between the level of pollution of garden sites in lead (Pb), Cadmium (Cd) and Arsenic (As) and the health quality of vegetables grown there, through … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 23 Apr 2012 · 7,668 accessesView PDFCite
Research ArticleOpen accessIn the abstractA New Method to Correlate a Possible Coupling between the Upper and the Lower AtmosphereWayan Suparta, Grahame J. FraserProblem statement: Sun-earth coupling studies are one of the methods of projection to explain certain physical mechanisms of how solar activity can influence weather/climate changes. Approach: To gain insight of the above challenge, analysis of propagation delays in GPS-transmitted signals in the upper and lower atmosphere during transient events associated with intense geomagnetic storms was conducted within the Antarctic polar … …American Journal of Applied Sciences, Vol. 9, Issue 6 · 20 Mar 2012 · 7,191 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacterization, Concentrations and Emission Rates of Volatile Organic Compounds from Two Major Landfill Sites in KuwaitMohammad AlAhmad, Marwan Dimashki, Abdallah Nassour, Michael NellesProblem statement: The emission of pollutants from landfill sites in Kuwait is of major concern due to the associated adverse environmental and health impacts. There are 18 landfill sites in Kuwait which are contributing to the emission of atmospheric pollutants including; methane, carbon dioxide and Volatile Organic Compounds (VOCs). Approach: Determine the concentration and composition of VOCs in LFG emissions … …American Journal of Environmental Sciences, Vol. 8, Issue 1 · 17 Feb 2012 · 7,980 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Analysis on 16-Channels Wavelength Division Multiplexing in Free Space Optical Transmission under Tropical Regions EnvironmentSalasiah Hitam, Siti Norziela Suhaimi, Ahmad Shukri Mohd Noor et al.Problem statement: Wavelength-Division-Multiplexing (WDM) is a promising technique for meeting the growing demand for increased bandwidth and various types of services in the optical access network. For wide area or metropolitan networks, fibers are deployed to provide huge bandwidth. In access networks, the fiber-to-the-home will partially solve the last mile problem. However, some environmentally sensitive area such as housing areas, … …Journal of Computer Science, Vol. 8, Issue 1 · 2 Nov 2011 · 10,365 accessesView PDFCite
Research ArticleOpen accessIn the abstractProof of Analytic Extension Theorem for Zeta Function Using Abel Transformation and Euler ProductMbaitiga ZacharieProblem statement: In the prime number the Riemann zeta function is unquestionable and undisputable one of the most important questions in mathematics whose many researchers are still trying to find answer to some unsolved problems such as Riemann Hypothesis. In this study we proposed a new method that proves the analytic extension theorem for zeta function. Approach: Abel transformation was … …Journal of Mathematics and Statistics, Vol. 6, Issue 3 · 30 Sep 2010 · 7,928 accessesView PDFCite
Research ArticleOpen accessIn the abstractRadiometric Correction of Multitemporal Satellite ImagerySeema Gore Biday, Udhav BhosleProblem statement: Repeated observation of a given area over time yields potential for many forms of change detection analysis. These repeated observations are confounded in terms of radiometric consistency due to changes in sensor calibration over time, differences in illumination, observation angles and variation in atmospheric effects. Also major problem with satellite images is that regions below clouds are not … …Journal of Computer Science, Vol. 6, Issue 9 · 30 Sep 2010 · 8,399 accessesView PDFCite
Research ArticleOpen accessIn the abstractPotted Plants on Flat Roof as a Strategy to Reduce Indoor Temperature in Malaysian ClimateAsmat Ismail, Muna Hanim Abdul Samad, Abdul Malek Abdul RahmanProblem statement: The phenomenon of global warming or climate change has led to many environmental issues including higher atmospheric temperatures, intensive precipitation, increase greenhouse gaseous emission and of course increase indoor discomfort condition. Researchers worldwide collectively agreed that one way of reducing the impact of global warming is by implementing green roof technology which integrates vegetation, growing medium and water … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 3 · 30 Sep 2010 · 8,668 accessesView PDFCite