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85 results for “deterioration”
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Research ArticleOpen accessIn the abstractWaste Disposal and Pollution Management in Urban Areas: A Workable Remedy for the Environment in Developing CountriesJ. A. Awomeso, A. M. Taiwo, A. M. Gbadebo, A. O. ArimoroProblem statement: Both wastes and the crude disposal techniques have created subtle and yet serious environmental pollution havoc in many developing countries. This has lead to the degradation of abiotic and biotic components of these nations’ ecological systems. Poor industrial waste disposal systems as well as the indiscriminate and inappropriate domestic litter disposal habit have been identified and proved to … …American Journal of Environmental Sciences, Vol. 6, Issue 1 · 28 Feb 2010 · 9,108 accessesView PDFCite
Research ArticleOpen accessIn the abstractUsing an Adaptative Fuzzy-Logic System to Optimize the Performances and the Reduction of Chattering Phenomenon in the Control of Induction MotorM. M. Krishan, L. Barazane, A. KhwaldehProblem statement: Neural networks and fuzzy inference systems are becoming well-recognized tools of designing an identifier/controller capable of perceiving the operating environment and imitating a human operator with high performance. Also, by combining these two features, more versatile and robust models, called “neuro-fuzzy” architectures have been developed. The mo Approach: Motivation behind the use of neuro-fuzzy approaches was based on … …American Journal of Applied Sciences, Vol. 7, Issue 1 · 31 Jan 2010 · 7,523 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeavy Metals Analysis and Sediment Quality Values in Urban LakesAboud S. Jumbe, N. NandiniProblem statement: The objective of this research was to evaluate the degree of heavy metal contamination in lakes and the extent to which the sediment quality of the lakes of Bangalore city has deteriorated. Approach: In this study, heavy metals such as Cd, Co, Cu, Cr, Mn, Pb, Ni and Zn in lake bed sediments were analyzed using comparative sediment … …American Journal of Environmental Sciences, Vol. 5, Issue 6 · 31 Dec 2009 · 9,571 accessesView PDFCite
Research ArticleOpen accessIn the abstractCondition Monitoring and Diagnosis of Faults in the Electric Induction MotorA. Medoued, A. Metatla, A. Boukadoum et al.Problem statement: The diagnosis of failures in the induction machine, when it is implemented effectively and whether it allows detecting early deterioration of the system, represents a means to help achieve better productivity. Approach: Primary purpose was to detect and locate a possible malfunction of equipments. In this study we developed a method using the three phase-biphase transformation (shape recognition), … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 6,773 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Storage Temperature on the Stability of Phytonutrients in Palm ConcentratesK. Chandrasekaram, M. H. Ng, Y. M. Choo, C. H. ChuahPalm phytonutrient concentrates; a valuable by-product from the production of palm biodiesel contains an abundance of natural phytonutrients such as carotenes, vitamin E, sterols, squalene and coenzyme Q. The present research described the concentration of phytonutrients that obtained from palm biodiesel production. The concentration of phytonutrients available in palm phytonutrients concentrate is ten times higher than in crude palm oil. … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 9,585 accessesView PDFCite
Research ArticleOpen accessIn the abstractSelected Malaysian Wood CO2 -Laser Cutting Parameters And Cut QualityNukman Yusoff, Saiful Rizal Ismail, Azuddin Mamat, Aznijar Ahmad-YazidLaser has been used to cut most non-metallic materials very efficiently and successfully because these materials are highly absorptive by the CO2 laser wavelength of 10.6 10.6µm. Laser cutting process has been found to be reliable in loads of applications, with several advantages over other mechanical means in producing successful cut of even thermally sensitive materials such as wood. Various … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 7,797 accessesView PDFCite
Research ArticleOpen accessIn the abstractWhat is Xenohormesis?Joseph A. Baur, David A. SinclairPolyphenols such as resveratrol and quercetin, which are produced by stressed plants, activate sirtuin enzymes and extend the lifespan of fungi and animals, ostensibly by mimicking the beneficial effects of caloric restriction. This observation raises an interesting question: Why should foreign molecules that are non-nutritive and seemingly unrelated to any endogenous molecule modulate the same biochemical pathways that mediate the … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 1 · 31 Mar 2008 · 10,386 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Use of Polyethylene in Hot Asphalt MixturesMohammad T. Awwad, Lina ShbeebThe increase in road traffic during the last two decades in combination with an insufficient degree of maintenance due to shortage in funds has caused an accelerated and continuous deterioration of the road network in Jordan. To alleviate this process, several types of measures may be effective, e.g., securing funds for maintenance, improved roadway design, use of better quality of … …American Journal of Applied Sciences, Vol. 4, Issue 6 · 30 Jun 2007 · 14,664 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Role of Quality Control and Everyone’s Participation in Japan to Prevent Pollution During Last Five DecadesMohammed Matouq, Nasir Kloub, Kazue InoueEconomic Growth in Japan after World War II was very remarkable and products from its manufacturing industry were widely accepted in the world market after productivity and quality of them were tremendously improved. On the other hand, Japan soon found itself in severe environmental deterioration, due to not being paid any attention to environment. However, that pollution from industry was … …American Journal of Applied Sciences, Vol. 4, Issue 1 · 30 Apr 2007 · 7,998 accessesView PDFCite
Research ArticleOpen accessIn the abstractAction of Calciotropic Hormones on Bone Metabolism-Role of Vitamin D3 in Bone Remodeling EventsCatharine Andresen, Ellen Olson, Chudy I. Nduaka et al.Vitamin D3 is known to have immunosuppressive effects that can be beneficial for treatment of immune disorders and transplant rejection, however therapeutic application is limited due to hypercalcemia and hypercalcuria. The goal of our studies was to explore both the acute and steady state effects of vitamin D3 on bone remodeling as potential limiting factors to broader use of vitamin … …American Journal of Immunology, Vol. 2, Issue 2 · 30 Jun 2006 · 8,816 accessesView PDFCite