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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 abstractBiodegradation of Phenolic Compounds in Creosote Treated Wood Waste by a Composting Microbial Culture Augmented with the Fungus Thermoascus aurantiacusAbdel E. Ghaly, Bopeng Zhang, Deepika DaveProblem statement: Creosote is used as a wood preservative and water proof agent in railway sleepers, utility poles, buildings foundations and fences and garden furniture. It is a mixture of over 300 hydrocarbons which include 75% polycyclic aromatic hydrocarbons, 2-17% phenolic compounds and 10-18% heterocyclic organic compounds. Exposure to creosote may result in several health problems including damage to kidney, … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 2 · 26 Aug 2011 · 9,453 accessesView PDFCite
Research ArticleOpen accessIn the abstractFeasibility Study and Performance Analysis of Solar Assisted Desiccant Cooling Technology in Hot and Humid ClimateArfidian Rachman, Kamaruzzaman Sopian, Sohif Mat, Muhammad YahyaProblem statement: New approaches to space conditioning of buildings are to resolve environmental, economic and regulatory issues. One of the alternative systems that brought to agenda is the desiccant cooling systems, which may provide important advantages in solving air conditioning problems. Approach: The performance analysis of desiccant cooling with solar energy are analyzed. The system was designed, constructed and tested … …American Journal of Environmental Sciences, Vol. 7, Issue 3 · 11 Jul 2011 · 7,508 accessesView PDFCite
Research ArticleOpen accessIn the abstractA New Collaborative Pattern between Landscape Architects and Urban Designers in Environmental DesignMostafa Behzadfar, Mohsen Faizi, Sina Razzaghi Asl, Behzad Haji BeiklouProblem statement: Nowadays professions such as architecture, landscape architecture and urban design are playing a unique role in environmental design process. Meanwhile architecture is being separated from two other majors: landscape architecture and urban design by paying so much attention to constructing buildings. Landscape architecture and urban design have parallel subjects and goals and both have the intention to improve … …American Journal of Environmental Sciences, Vol. 6, Issue 4 · 31 Aug 2010 · 7,355 accessesView PDFCite
Research ArticleOpen accessIn the abstractSecurity Guard Robot Detecting Human Using Gaussian Distribution Histogram MethodMbaitiga ZacharieProblem statement: The purpose of any robotic is to perform tasks that a human would prefer not to do or hopefully do it with precision in order to avoid mistakes or when a human is out of duty due to fatigue or health reasons. The research into human detection into images has paid the way be aware of what is … …Journal of Computer Science, Vol. 6, Issue 10 · 5 Aug 2010 · 7,059 accessesView PDFCite
Research ArticleOpen accessIn the abstractAdvective Heat Transport in an Unconfined Aquifer Induced by the Field Injection of an Open-Loop Groundwater Heat PumpStefano Lo Russo, Glenda TaddiaProblem statement: The increasing diffusion of low-enthalpy geothermal open-loop Groundwater Heat Pumps (GWHP) providing buildings air conditioning requires a careful assessment of the overall effects on groundwater system, especially in the urban areas. The impact on the groundwater temperature in the surrounding area of the re-injection well is directly linked to the aquifer properties. Physical processes affecting heat transport within … …American Journal of Environmental Sciences, Vol. 6, Issue 3 · 30 Jun 2010 · 7,974 accessesView PDFCite
Research ArticleOpen accessIn the abstractDensity Based Routing Algorithm for Spare/Dense Topologies in Wireless Mobile Ad-Hoc NetworksEssam Natsheh, Khalid BuraggaProblem statement: A Mobile Ad-Hoc Networks (MANETs) operate in environments without infrastructures with an undefined network size. Most routing protocols of Mobile Ad-hoc Networks (MANETs) were studied using open space models where nodes were able to move throughput the entire simulation area. However, a more realistic topology should account for restricted mobility of nodes, such as in an urban city … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 7,465 accessesView PDFCite
Research ArticleOpen accessIn the abstractSimulation of Vegetative Induced Deformation in an Unsaturated SoilNazri Bn Ali, Mu’azu Mohammed AbdullahiProblem statement: Tree root water-uptake increases soil strength by increasing the soil matric suction due to pore pressure dissipation in a soil mass, inducing increases in vertical total stress or water extraction, the effective stress to which the soil strata is subjected to may also increase. This causes volume change which might be detrimental to geotechnical structures and shallow foundation. … …American Journal of Environmental Sciences, Vol. 6, Issue 2 · 30 Apr 2010 · 7,139 accessesView PDFCite
Research ArticleOpen accessIn the abstractSeismic Response Evaluation of Moment Resistant Frame with Built-Up Column SectionMohammad Ebrahimi, Hesam Sharifian, Mohammad AhangarProblem statement: Moment Resisting Frame (MRF) is widely used as lateral resisting systems when sufficient ductility and deformability are to be met. Response of these structures is strictly dependent upon behavior of their joints, whereas the analysis of steel moment resisting frames generally has been performed without considering the accurate connection behavior. Approach: In this study Finite Element (FE) models … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 1 · 31 Mar 2010 · 8,289 accessesView PDFCite
Research ArticleOpen accessIn the abstractKey Performance Indicators Supporting Decision-Making Affecting Malaysian Enterprise' Project Performance in ChinaAbdullah Bin Ibrahim, Wu Jing, Da WengeProblem statement: Nowadays, Improving decision-making to define a group of strategic objectives and associated Performance Indicators (KPIs) are has become one of the critical issues for practices relating to scope management gaining competitive advantages. Approach: This study focus on validate KPI supporting decision-making for sustainability appraisal in projects management for Malaysian Architectural, Engineering and Construction (AEC) enterprises in China. Results: … …American Journal of Applied Sciences, Vol. 7, Issue 2 · 28 Feb 2010 · 7,471 accessesView PDFCite