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31 results for “M. Sadeghi”
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Research ArticleOpen accessIn the author namesRemediation of Methyl Tert-Butyl Ether (MTBE) Contaminated Water by Using In situ Catalytic and Biological Combined TechniquesA. Nikpay, H. Kazemian, M. SadeghiThe hydrolysis reaction of Methyl Tert-Butyl Ether (MTBE) into biodegradable products was studied on as-synthesized and commercial H-MFI zeolites. The effect of synthesis procedure and SiO2/Al2O3 ratio was investigated. The results obtained were indicated that H-MFI zeolites were effective in MTBE hydrolysis and increasing of the Si/Al ratio promotes the hydrolysis reaction. The amount of produced TBA was always lower … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 6,636 accessesView PDFCite
Research ArticleOpen accessIn the author namesStudy of the Allelopathic Potential of Extracts of Azadirachta Indica (Neem)Zoheir Y. Ashrafi, Aptin Rahnavard, Sedigheh Sadeghi et al.The allelopathic potential of extracts of Azadirachta indica L., which is one of the most dominant weeds in tropical regions of South-west Asia, was investigated under laboratory conditions. The n-hexane-soluble, acetone-soluble and water-soluble fractions obtained from the acetone extract of A. indica shoots inhibited the germination and the growth of roots and shoots of six test plant species. The inhibitory … …OnLine Journal of Biological Sciences, Vol. 8, Issue 3 · 30 Sep 2008 · 7,844 accessesView PDFCite
Research ArticleOpen accessIn the author namesNew Analysis for The FGM Thick Cylinders Under Combined Pressure and Temperature LoadingK. Abrinia, H. Naee, F. Sadeghi, F. DjavanroodiAn analytical solution for computing the radial and circumferential stresses in a FGM thick cylindrical vessel under the influence of internal pressure and temperature is presented in this paper. It has been assumed that the modulus of elasticity and thermal coefficient of expansion were varying through thickness of the FGM material according to a power law relationship. Nevertheless the value … …American Journal of Applied Sciences, Vol. 5, Issue 7 · 31 Jul 2008 · 7,128 accessesView PDFCite
Research ArticleOpen accessIn the author namesUsing IRS Products to Recover 7ETM+ Defective ImagesMobasheri Mohammad Reza, Sadeghi Naeini AliOn May 31st, 2003, Landsat 7 faced an anomaly in the Scan Line Corrector (SLC) normal operation. This malfunctioning of SLC caused the individual scan lines alternately overlap each other and consequently produce large gaps at the edges of the image. Regarding the unique specification of ETM+ sensor on board of Landsat-7 satellite such as its spectral bands in the … …American Journal of Applied Sciences, Vol. 5, Issue 6 · 30 Jun 2008 · 6,967 accessesView PDFCite
Research ArticleOpen accessIn the author namesWorking Memory Learning Method and Astrocytes Number in Different Subfields of Rat's HippocampusJahanshahi Mehrdad, Sadeghi Yousef, Hosseini Ahmad et al.The aim of this study was evaluation of the astrocytes number in different subfields of rat's Hippocampus after spatial learning with usage of Morris Water Maze technique and working memory method. In this study, between 2005-2006 years in Pasteur institute of Iran-Tehran and histological department of Gorgan University with usage of Morris Water Maze and working memory technique, we used … …American Journal of Animal and Veterinary Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 6,985 accessesView PDFCite
Research ArticleOpen accessIn the author namesSemantic Refinement of Multi-meaning Words by T-normsF. Sadeghi, H. Khosravi, E. EslamiIn this paper we consider a multi-meaning word which appears in a sentence together with some connected words. To refine the meaning of this multi-meaning word, we propose a method based on T-norms which are reasonable mathematical models of logical conjunction operator in fuzzy logic. The preliminary results derived from a prepared corpus are encouraging. …Journal of Computer Science, Vol. 1, Issue 3 · 30 Sep 2005 · 6,418 accessesView PDFCite
Research ArticleOpen accessIn the author namesApplication of the Ozonation Pre-treatment for Biodegradation of Aqueous Solutions of Methyltert-Butyl EtherM. Sadeghi, A. Mesdaghinia, A. Badkoubi et al.The effectiveness of ozone treatment for improving the biodegradability of recalcitrant pollutants has been proved by investigating the ozonation reaction of Methyl tert-butyl ether (MTBE) a bioresistant gasoline oxygenate. Laboratory scale experiments have been carried out, at room temperature, by bubbling, for 120 min, ozonated air (3.4 ppm min-1 ) into 3 liter of an alkaline (pH=11.5) aqueous solution (100 … …American Journal of Environmental Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 6,469 accessesView PDFCite
Research ArticleOpen accessIn the author namesThermal Hydraulic Analysis of Double Ended Hot Leg Pipeline Break Accident in AP1000 ReactorM.M. Sadeghiazad, F. Choobdar RahimIn the present research, the Loss of Coolant Accident (LOCA), as a postulated accident in nuclear reactors, in its worst condition called large LOCA has been modeled. A specific type of large LOCA in which a totally guillotine break occurs in the hot leg pipe is the Double Ended Hot Leg (DEHL). Once the ‘LOCA’ occurs, the pipe is break … …Energy Research Journal, Vol. 11, Issue 1 · 14 May 2020 · 7,665 accessesView PDFCite
Research ArticleOpen accessIn the author namesAntimicrobial Pattern and Clonal Dissemination of Extended-Spectrum Beta-Lactamase Producing Klebsiella Spp IsolatesSobhan Ghafourian, Nourkhoda Sadeghifard, Zamberi bin Sekawi et al.Problem statement: Gram-negative pathogens harboring ESBLs have caused numerous outbreaks of infections and are becoming an increasing therapeutic problem in many countries. The incidence of ESBL-producing strains among clinical isolates has been steadily increasing over the past years resulting in limitations of therapeutic option. The focus of this study was to examine the molecular epidemiology of ESBL-producing Klebsiella spp, investigate … …American Journal of Infectious Diseases, Vol. 6, Issue 4 · 31 Dec 2010 · 7,900 accessesView PDFCite
Research ArticleOpen accessIn the author namesComparison of UPFC-Based Stabilizer and PSS Performances on Damping of Power System OscillationsM. R. Meshkatoddini, M. Majidi, M. Sadeghierad, H. LesaniThis paper establishes the linearized Phillips-Heffron model of a power system equipped with UPFC and demonstrates the application of the model in analyzing the damping effect of the UPFC and designing UPFC based stabilizer to improve power system oscillation stability. A comprehensive approach to the design of UPFC based stabilizer (power flow control, DC-voltage regulator and damping controller) is presented. … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 6,455 accessesView PDFCite