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Research ArticleOpen accessIn the abstractEvaluation of Electricity Product by Increasing Water Volume During FreezingA. Arab, B. Alinaghi, M. R. RezaieElectricity production process by the use of water expansion during freezing. By use of a closed volume such as piston and cylinder. The volume increase of ice could be transformed linearly and cause piston displacement, by the use of cold resource and heat resources. This process is possible where boarding temperature difference is high and water temperatures reach below 0°C … …American Journal of Applied Sciences, Vol. 2, Issue 8 · 31 Aug 2005 · 6,918 accessesView PDFCite
Research ArticleOpen accessIn the abstractSewage Treatment Plant Sludge: A Source of Potential Microorganism for Citric Acid ProductionParveen Jamal, Md. Zahangir Alam, M. Ramlan et al.This research emphasizes on the utilization of Sewage Treatment Plant (STP) sludge, which is an inexpensive and easily available raw material and a good source for growth of microorganisms because it has enough nutrients and trace elements. This can be considered as an alternative cost effective solution for waste management in addition to the production of a value added product … …American Journal of Applied Sciences, Vol. 2, Issue 8 · 31 Aug 2005 · 8,940 accessesView PDFCite
Research ArticleOpen accessIn the abstractNumerical Simulation of a Turbulent Lean, Premixed Combustion with an Explicit Algebraic Stress ModelWilliam Vicente, Martín Salinas-Vázquez, Eliseo Martínez, Alejandro RodríguezA computational model is used in the present paper to study the influence of the turbulence modeling on the chemical species in a turbulent lean premixed flame. The simulated configuration is about a lean, premixed bluff-body-stabilized flame with a recirculation zone. To achieve the objectives, three different models were used for turbulence modeling as listed next: 1) standard k-ε, 2) … …Journal of Mathematics and Statistics, Vol. 1, Issue 2 · 30 Jun 2005 · 6,319 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Evaluation of Aqueous and Freeze Dried Antigen for Sero-diagnosis of VL and PKDL Cases by DATSanjiva Bimal, Shubhankar K. Singh, P. K. Sinha et al.The efficacy of aqueous and freeze dried (FD) antigen was evaluated by direct agglutination test (DAT) for sero-diagnosis of visceral leishmaniasis. A total of 16 samples collected from 5 confirmed Kala-azar (KA) cases, 6 cases 2 each of filariasis, malaria, leprosy and 5 non-endemic healthy subjects were used in determination of cut off titre of both the antigens in DAT. … …American Journal of Immunology, Vol. 1, Issue 2 · 30 Jun 2005 · 6,837 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of the Application of Sewage Sludge and Presence of Pesticides on the Development of the Microbial Population of the Soil and on the Transformation of Organic Carbon and Nutrient ElementsM.E. Sánchez, I. B. Estrada, O. Martínez et al.The laboratory trial consisted in incubating samples of soil and soil treated with sewage sludge, with the application of organophosphate pesticides with different active ingredients under controlled conditions of temperature and moisture. On the basis of a previous study of the influence of the application of sludge on the degradation of pesticides in the soil, a kinetic study is included … …American Journal of Environmental Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 6,866 accessesView PDFCite
Research ArticleOpen accessIn the abstractExperimental Study of Parameters Influencing the Purity of Potassium Sulfate Fertilizer Produced from Jordanian Raw MaterialsMousa GougazehThe general objective of the present investigation was to make a contribution towards improving the purity of the produced potassium sulfate from (KCl, Arab Potash Company-Dead Sea) and (H2SO4, Jordanian Phosphate Company). The process parameters influencing the contamination of the poisoning chlorine within the product were experimentally investigated. The experiments were performed in a small-scale batch reactor equipped with a … …American Journal of Environmental Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 7,046 accessesView PDFCite
Research ArticleOpen accessIn the abstractReview of Photochemical Smog Pollution in Jakarta Metropolitan, IndonesiaDollaris R. Suhadi, M. Awang, M. N. Hassan et al.An analysis of photochemical smog pollution in Jakarta was attempted using data from the existing air quality monitoring stations. Ground-level ozone potential is high in Jakarta due to the high traffic emissions of ozone precursors and the favorable surface meteorological conditions. Despite the frequent missing data during the 1996-1999 monitoring, which resulted in lower ozone values, ozone episodes were significantly … …American Journal of Environmental Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 7,252 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacterization of Transparent Conductive Thin Films of In 2O 3:Sn by Spray Pyrolysis TechniqueSeyed Mohammad Rozati, Tohid GanjHighly conductive transparent In2O3:Sn (ITO) thin films were prepared onto glass substrate using the spray pyrolysis technique. It is observed that these films are polycrystalline with the preferred orientation of [400]. The extent of this orientation increases with substrate temperature. The results show that films with a sheet resistance as low as 35Ω/cm2 and with a transmittance as high as … …American Journal of Applied Sciences, Vol. 2, Issue 6 · 30 Jun 2005 · 6,766 accessesView PDFCite
Research ArticleOpen accessIn the abstractOscillatory Dynamical Switching System of Bulk FerroelectricsM. N.A. Halif, S. Daud, Junaidah OsmanThis study gives a detailed account of calculation of the bulk ferroelectric (FE) oscillatory dynamical system switching to first and second-order phase transition, respectively. All the formalism is delineated in the framework of Landau free-energy expansion and Landau-Khalatnikov (LK) equation of motion where the effect of external energy may affray FE atoms similar to the spring damped oscillatory system. Here … …American Journal of Applied Sciences, Vol. 2, Issue 6 · 30 Jun 2005 · 6,679 accessesView PDFCite
Research ArticleOpen accessIn the abstractThermodynamic Investigation of Two-Stage Absorption Refrigeration System Connected by a CompressorL. Kairouani, E. Nehdi, R. B. IffaThe present work is to analyze a two-stage cycle based on the ammonia-water absorption system, with intermediate compression. The two generators of the system are heated by geothermal energy at low temperature. The study shows that this system makes it possible at lower generator temperature, under the limits permitted by the systems suggested up to now. For Tg = 335 … …American Journal of Applied Sciences, Vol. 2, Issue 6 · 30 Jun 2005 · 6,741 accessesView PDFCite