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294 results for “Earth”
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Research ArticleOpen accessIn the abstractPotential Plant Species for Live Pole Application in Tropical EnvironmentSasan Mafian, Bujang B.K. Huat, Nordin A. Rahman, Harwant SinghProblem statement: Slope instability causing landslides, a major geologic hazard, is a risk common to most regions. Among all categories of landslides, shallow slope failures which affect many hill slopes and earthwork projects are the most wide spread and pose the most costly maintenance problem. One of the soil improvement methods that seem suitable for preventing shallow slope failures is … …American Journal of Environmental Sciences, Vol. 5, Issue 6 · 31 Dec 2009 · 7,594 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Liquefaction Return Period for Bangalore Based on Standard Penetration Test Data: Performance Based ApproachK. S. Vipin, T. G. SitharamProblem statement: The conventional liquefaction evaluation is based on a deterministic approach. However in this method the uncertainty in the earthquake loading is not properly taken into account. However recent research in this field indicates that this uncertainty in the earthquake loading has to be considered in the liquefaction potential evaluation. Moreover the evaluation of liquefaction return period is not … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 3 · 30 Sep 2009 · 7,741 accessesView PDFCite
Research ArticleOpen accessIn the abstractEngineering of Ground for Liquefaction Mitigation Using Granular Columnar Inclusions: Recent DevelopmentsA. Murali Krishna, M.R. MadhavProblem statement: Liquefaction was the most hazardous damage during an earthquake. Ground improvement techniques were employed to mitigate liquefaction hazards. Most common methods to improve engineering properties of soils are densification, reinforcement, grouting/mixing and drainage. Among various remedial measures available, installation of columnar granular inclusions is the most widely adopted method for liquefaction mitigation. Approach: Columnar granular inclusions function as … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 3 · 30 Sep 2009 · 7,736 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Adaptation of Fishing Instruments by a Farmers' Community in the Thung Kula Area, in North Eastern ThailandWorawan Ubonlert, Songkhun Chantachon, Worapol EngwanichProblem statement: In a historical study of the ancient communities in the area of Thung Kula, it was revealed that there are important resources including rice, fish, salt and iron. Salt is used in making fermented fish (known locally as Pla Daek), a culinary culture which has been prevalent in the ethnic groups of Laos and Khmer. The availability of … …Journal of Social Sciences, Vol. 5, Issue 2 · 30 Jun 2009 · 7,866 accessesView PDFCite
Research ArticleOpen accessIn the abstractTransgenic Indian Cotton (Gossypium hirsutum) Harboring Rice Chitinase Gene (Chi II) Confers Resistance to Two Fungal PathogensM. Ganesan, P. Bhanumathi, K. Ganesh Kumari et al.Problem statement: The present investigation described a simple and reproducible protocol for transgenic cotton regeneration and characterization of chitinase (Chi II) gene expression against two different fungal pathogens in cotton. Approach: Transgenic cotton (Gossypium hirsutum cv. SVPR2) plants were produced by pCambia-bar-Chi II (13.8 kb) under the control of the CaMV 35S promoter, harbored in the strain LBA 4404 Agrobacterium … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 2 · 30 Jun 2009 · 8,531 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of Hillside Gradient on Forest Road Cross Section Components in a Loamy Clay SoilAidin Parsakhoo, Seyed Ataollah Hosseini, Majid Lotfalian, Hamid JalilvandProblem statement: In this study to evaluate the effects of hillside gradient on forest road cross section components in a loamy clay soil the amount of cut and fill slopes gradient and length, road bed and earthwork width were taken on tangent sections in a lat talar forest roads of Iran. Approach: The objective of this study were: (i) to … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 6,987 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparison the Proposed Probabilistic-Based Time-History and the Traditional PSHA ApproachA. NicknamThe main objective of this article is to demonstrate the ability of our technique in estimating the probabilistic-based time-history to be used in dynamic analysis of structures. The result of using our technique is compared with that of traditional approach proposed by Cornell (Cornell, 1968), in the form of response spectrum through a case study. Good agreement of the two … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 6,945 accessesView PDFCite
Research ArticleOpen accessIn the abstractProbabilistic Empirical Green's Function Method in Ground Motion SimulationEhsan Khojastehfar, Amir Saedi Daryan, Mohammad Amin AssarehProblem statement: The Empirical Green's Function method is used to synthesize strong ground motion time histories.In previous simulation processes parameters were taken deterministically. Approach: In this study, the probabilistic consideration for some of these parameters was inserted to the process. For implementing this method a computer program was developed in GIS. GIS abilities for storing and processing geographic data is … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 7,651 accessesView PDFCite
Research ArticleOpen accessIn the abstractNonlinear Behavior of Single Piles in Jacket Type Offshore Platforms Using Incremental Dynamic AnalysisMohammad Amin Assareh, Behrouz AsgarianThe operation for offshore oil has become an important issue in the recent years. Offshore platforms are some of those structures which are built to withstand environmental and accidental loads during oil exploitation operation. One of the most usual types of these platforms is the Jacket Type Offshore Platform (JTOP) which can be divided into three important parts, which are … …American Journal of Applied Sciences, Vol. 5, Issue 12 · 31 Dec 2008 · 9,299 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrey-Catching Behaviour in Mudskippers and Toads: A Comparative AnalysisU. Kutschera, H. Burghagen, J. P. EwertThe invasion of land by a diverse group of fishlike amphibians during the Middle-Late Devonian was a key event in the history of life. It is obvious that the evolutionary transition from an aquatic to a terrestrial habitat was associated with physiological adaptations such as novel feeding strategies that can not be elucidated with fossils alone. Here we show that … …OnLine Journal of Biological Sciences, Vol. 8, Issue 2 · 30 Jun 2008 · 7,639 accessesView PDFCite