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检索条件"作者=Mostafa a.a.mahmoud"
987 条 记 录,以下是61-70 订阅
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Chemical stability, thermal behavior, and shelf life assessment of extruded modified double-base propellants
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Defence Technology(防务技术) 2018年 第1期14卷 70-76页
作者: Sherif Elbasuney Ahmed Fahd Hosam E.mostafa Sherif F.mostafa Ramy Sadek School of Chemical Engineering Military Technical College
Double base propellant suffers from lack of chemical stability; this could result in self ignition during storing. Modified double base(MDB) propellant based on stoichiometric binary mixture of oxidizermetal fuel(Ammo... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Synthesis and surface modification of nanophosphorous-based flame retardant agent by continuous flow hydrothermal synthesis
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Particuology 2015年 第5期13卷 82-88页
作者: Sherif Elbasuney Hosam E.mostafa School of Chemical Engineering Military Technical College
Nanoparticles can provide flame retardance to hosting polymers and act as nano fire extinguishers. Hydroxyapatite (Ca5(OH)(PO4)3) (HA) is not hygroscopic, and is thermally stable up to 800℃, with 18.5 wt% pho... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Structural and Mechanical Properties of Al/B_4C Composites Fabricated by Wet Attrition Milling and Hot Extrusion
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Journal of Materials Science & Technology 2013年 第8期29卷 725-730页
作者: Morteza Alizadeh mostafa Alizadeh Rasool Amini Department of Materials Science and Engineering Shiraz University of TechnologyModarres Blvd.71555-313 ShirazIran Department of Metals Institute of Materials Science and EngineeringGraduate University of Advanced TechnologyP.O.Box 76315-115KermanIran
In this study, Al matrix composites reinforced by 7.5 and 15 vol.% B4C particles and also monolithic Al (Al without the B4C particles) were produced by wet attrition milling and subsequent hot forward extrusion proc... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
FIRST-ORDER METHODS FOR SOLVING THE OPTIMAL STATIC H∞-SYNTHESIS PROBLEM
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Journal of Computational Mathematics 2007年 第6期25卷 672-689页
作者: El-Sayed M.E. mostafa Department of Mathematics Faculty of Science Alexandria University Alexandria Egypt
In this paper, we consider the static output feedback (SOF) H∞-synthesis problem posed as a nonlinear semi-definite programming (NSDP) problem. Two numerical algorithms are developed to tackle the NSDP problem by... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Fluidized bed coating efficiency and morphology of coatings for producing Al-based nanocomposite hollow spheres
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International Journal of Minerals,Metallurgy and Materials 2014年 第11期21卷 1146-1151页
作者: mostafa Amirjan Hamid Khorsand Manouchehr Khorasani Faculty of Materials Science and Engineering K. N. Toosi University of TechnologyP.O. Box 15875-4416 Tehran Iran Color and Polymer Research Center (CPRC) Amirkabir University of TechnologyP.O. Box 15875-4413 Tehran Iran
Abstract: We performed fluidized bed coating ofAl-based nanoeomposite powder-binder suspensions onto polymer substrates. The effects of the type and amount of the binder and nanoparticle additive on the coating proce... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Mid-term results of sub-trochanteric valgus osteotomy for symptomatic late stages Legg-Calvé-Perthes disease
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World Journal of Orthopedics 2023年 第5期14卷 328-339页
作者: Khaled M Emara Ramy Ahmed Diab Ahmed K Emara Mohamed Eissa mostafa Gemeah Shady Abdelghaffar mahmoud Department of Orthopedic Surgery Ain Shams UniversityCairo 11591Egypt Department of Orthopedic Surgery Cleveland Clinic FoundationClevelandOH 9500United States Health Care Innovation Program Arizona State UniversityTempeAZ 85287United States
BACKGROUND The treatment of late stages of Legg-Calvé-Perthes disease(LCPD)is *** the concept of femoral head containment is a well-established technique of treatment,its use remains debatable in the late stages of t... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Multiscale Mechanics and Optimization of Gastropod Shells
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Journal of Bionic Engineering 2011年 第4期8卷 357-368页
作者: mostafa Yourdkhani Damiano Pasini Francois Barthelat Department of Mechanical Engineering McGill University 817 Sherbrooke Street West Montreal QC H3A 2K6 Canada
A vast majority of mollusks grow a hard shell for protection. The structure of these shells comprises several levels of hierarchy that increase their strength and their resistance to natural threats. This article focu... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Biosynthesis of raw starch degradingβ-cyclodextrin glycosyltransferase by immobilized cells of Bacillus licheniformis using potato wastewater
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BIOCELL 2021年 第6期45卷 1661-1672页
作者: YASSER S.mostafa SAAD A.ALAMRI SULIMAN A.ALRUMMAN TAREK H.TAHA MOHAMED HASHEM mahmoud MOUSTAFA LAMIAA I.FAHMY Department of Biology College of ScienceKing Khalid UniversityAbha9004Saudi Arabia Prince Sultan Bin Abdulaziz Center for Environmental and Tourism Research and Studies King Khalid UniversityAbha9004Saudi Arabia Environmental Biotechnology Department Genetic Engineering and Biotechnology Research InstituteCity of Scientific Research&Technological ApplicationsNew Borg El-Arab City21934Egypt Department of Botany and Microbiology Faculty of ScienceAssiut UniversityAssiut71515Egypt Department of Botany and Microbiology Faculty of ScienceSouth Valley UniversityQena83523Egypt Department of Microbiology and Immunology Faculty of PharmacyOctober University for Modern Science and ArtGiza12451Egypta
The study was sought to enhance the synthesis of thermal stableβ-cyclodextrin glycosyltransferase(β-CGTase)using potato wastewater as a low-cost medium and assess the degree to which it is efficient for industrial p... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Introducing a proper hydrogen liquefaction concept for using wasted heat of thermal power plants-case study: Parand gas power plant
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Chinese Journal of Chemical Engineering 2021年 第12期34卷 187-196页
作者: Hamed Rezaie Azizabadi Masoud Ziabasharhagh mostafa Mafi Faculty of Mechanical Engineering K.N.Toosi University of TechnologyTehranIran Department of Mechanical Engineering Imam Khomeini International UniversityQazvinIran
A hydrogen liquefaction concept with an innovative configuration and a capacity of 4 kg·s^(-1)(345.6 t·d^(-1))is *** concept involves an ammonia absorption refrigeration system for the pre-cooling of hydrogen and MR... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Enhanced Sentiment Analysis Algorithms for Multi-Weight Polarity Selection on Twitter Dataset
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Intelligent Automation & Soft Computing 2023年 第1期35卷 1015-1034页
作者: Ayman Mohamed mostafa College of Computer and Information Sciences Jouf UniversitySakaka72314Saudi Arabia
Sentiment analysis is based on the orientation of user attitudes and satisfaction towards services and *** methods and techniques have been introduced to analyze sentiments for obtaining high *** sentiment analysis ac... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论