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95 results for “H. M. El-Sayed”
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Research ArticleOpen accessIn the author namesElectronegativity, Interaction Parameter and Electronicpolarizability for Bisumth Borate Metal GlassesEl-Sayed Moustafa, Farid ElkhatebProblem statement: In the present work, we applied the concept of the optical electronegativity to predict basic properties of some ternary oxide glasses. Recently Optical electronegativity of many binary oxide glasses has been evaluated on the basis of two different parameters, the linear refractive index and the energy gap, which have demonstrated remarkable correlation. Approach: In this study, the refractive … …Physics International, Vol. 2, Issue 1 · 1 Dec 2011 · 7,314 accessesView PDFCite
Research ArticleOpen accessIn the author namesQuality of Life of the Elderly ResidentsFereshteh Farzianpour, Shayan Hosseini, Maryam Rostami et al.Problem statement: A preliminary investigation of the Orem self-care training effects on the Quality Of Life (QOL) of the health care centers’ elderly residents in the city of Masjed Solaiman, Iran. Approach: The Orem self-care training was administered to 349 elderly free of chronic disorders (aged 65 and older). The eligible participants were selected from 11 health centers. The training … …American Journal of Applied Sciences, Vol. 9, Issue 1 · 5 Nov 2011 · 8,532 accessesView PDFCite
Research ArticleOpen accessIn the author namesOrganizational Citizenship Behavior (OCB) amongthe Managers of Teaching HospitalsFereshteh Farzianpour, Abbas Rahimi Foroushani, Hossein Kamjoo, Sayed Shahab HosseiniProblem statement: Organizational behavior is desirable for any organization, as it is associated with important organizational variables such as job satisfaction, organizational productivity and system maintenance. The main purpose of this study is to evaluate the mean organizational behavior score among the managers of the hospitals affiliated to Shahid Sadoughi University of Medical Sciences and Health Services, Yazd. Approach: A … …American Journal of Economics and Business Administration, Vol. 3, Issue 3 · 29 Oct 2011 · 8,164 accessesView PDFCite
Research ArticleOpen accessIn the author namesNew approach between the Optical Basicity and the Dielectric Constant through the Molar Polarizability for Some Binary GlassesEl-Sayed MoustafaProblem statement: In the present study, a new correlation between the optical basiciry which describes the electronic charge clouds around the oxide glass and the dielectric constant has been proposed through the molar polarizability of the binary oxide glasses. Approach: Two experimental forms have been suggested relating the optical basicity and the molar electronic polarizability. Hence, the dielectric constant and … …Physics International, Vol. 2, Issue 1 · 26 Oct 2011 · 7,769 accessesView PDFCite
Research ArticleOpen accessIn the author namesReliability of Simple 3-Dimnesional Consecutive k-Out-of-n: F SystemsM. Gharib, E. M. El-Sayed, I.I.H. NashwanProblem statement: In this study, the reliability of some special cases of a 3-dimnesional consecutive k-out-of-n: F system and k-within consecutive (2,2,2) -out-of- (m,2,2): F system were discussed. Approach: The 3 dimensional systems is a generalization of 1 and 2 dimensional, systems. Projections from 3 dimensional systems to 2 or 1 dimension as special cases is very helpful to find … …Journal of Mathematics and Statistics, Vol. 6, Issue 3 · 30 Sep 2010 · 7,448 accessesView PDFCite
Research ArticleOpen accessIn the author namesRegression Analysis of Effective Factor on People Participation in Protecting, Revitalizing, Developing and Using Renewable Natural Resources in Ilam Province from the View of UsersBagher Arayesh, Sayed Jamal HosseiniProblem statement: The purpose of this study was the regression analysis of effective factor on people participation in protecting, revitalizing, developing and using renewable natural resources in Ilam province. Approach: This study was a casual comparative and applies one. Sample was taken from natural resources users. Results: The sample size of groups was 317 for users respectively. For sample selection, … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 7,959 accessesView PDFCite
Research ArticleOpen accessIn the author namesChange Detection Using Neural Network with Improvement Factor in Satellite ImagesM. A. Fkirin, S. M. Badwai, Sayed A. MohamedProblem statement: The aim of this study is to investigate the applicability of using the neural network techniques in change detection of remotely sensed data. Approach: In addition, the tuning parameters of the network, such as encoding the output classes, adding the momentum term and learning rate, are investigated in order to achieve best network performance. Results: Neural network-based change … …American Journal of Environmental Sciences, Vol. 5, Issue 6 · 31 Dec 2009 · 6,650 accessesView PDFCite
Research ArticleOpen accessIn the author namesFailure Probability of 2-within-Consecutive-(2, 2)-out-of-(n, m): F System for Special Values of mE. M.E.L. SayedProblem statements: In this research, the researcher aimed to discuses the system failure probability of the model 2-within-consecutive (2, 2) out of (n, m) system for special values of m. Approach: The basic idea for evaluating the failure probability was the usage of the number of configuration of k (k = 2, 3, 4) parallel columns each contained n components … …Journal of Mathematics and Statistics, Vol. 5, Issue 1 · 31 Mar 2009 · 7,469 accessesView PDFCite
Research ArticleOpen accessIn the author namesEffect of Partial Orientation in [100] Direction on the Magnetic Properties of Co-Ferrite Prepared from Nano ParticlesH. M. El-SayedChemical co-precipitation method was used for the preparation of Co-ferrite nano particles. The particle size was about 18 nm. A magnetic anisotropy of Co-ferrite could be increased by applying an external magnetic field during the pressing of the nano particles before the final sintering. This anisotropy enhanced the squareness and the coercivity of investigated samples. …American Journal of Applied Sciences, Vol. 6, Issue 1 · 31 Jan 2009 · 7,223 accessesView PDFCite
Research ArticleOpen accessIn the author namesEffect of Magnetic Field on the Formation of Spin-polaron in Mn-Zn FerritesH. M.El SayedThe effect of magnetic field on the transport properties of Mn-Zn ferrite was studied. It was found that, the resistivity has an inverse relation with the applied magnetic field. This was attributed to the reduction of the scattering between the charge carriers and the disordered spins. Also, it was found that, the activation energy in the paramagnetic region is strongly … …American Journal of Applied Sciences, Vol. 3, Issue 10 · 31 Oct 2007 · 6,512 accessesView PDFCite