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18篇 您的检索式:作者名="A.M.A."
    题名 作者 年代 出处 被引量
1Enhanced performance of nano-sized SiC reinforced Al metal matrix nanocomposites synthesized through microwave sintering and hot extrusion techniques显示文摘In the present study, nano-sized SiC(0, 0.3, 0.5, 1.0 and 1.5 vol%) reinforced aluminum(Al) metal matrix composites were fabricated by microwave sintering and hot extrusion techniques. The structural(XRD, SEM),mechanical(nanoindentation, compression, tensile) and thermal properties(co-efficient of thermal expansionCTE) of the developed Al-SiC nanocomposites were studied. The SEM/EDS mapping images show a homogeneous distribution of SiC nanoparticles into the Al matrix. A significant increase in the strength(compressive and tensile) of the Al-SiC nanocomposites with the addition of SiC content is observed. However,it is noticed that the ductility of Al-SiC nanocomposites decreases with increasing volume fraction of SiC. The thermal analysis indicates that CTE of Al-SiC nanocomposites decreases with the progressive addition of hard SiC nanoparticles. Overall, hot extruded Al 1.5 vol% SiC nanocomposites exhibited the best mechanical and thermal performance as compared to the other developed Al-SiC nanocomposites.M. Penchal Reddy R.A. Shakoor Gururaj Parande Vyasaraj Manakari F. Ubaid A.M.A. Mohamed Manoj Gupta 2017Progress in Natural Science:Materials International2017,27,5:2
2The role of alloying additives and aging treatment on the impact behavior of 319 cast alloy显示文摘O. Elsebaie A.M.A. Mohamed A.M. Samuel F.H. Samuel A.M.A. Al-Ahmari 2011Materials and Design2011,,6:2
3The Adomian decomposition method for solving partial differential equations of fractal order in finite domains显示文摘A.M.A. El-Sayed M. Gaber 2006Physics Letters A2006,,3:1
4The promoter of the plant defensin gene PDF1.2 from Arabidopsis is systemically activated by fungal pathogens and responds to methyl jasmonate but not to salicylic acid显示文摘John M. Manners Iris A.M.A. Penninckx Katrien Vermaere Kemal Kazan Rebecca L. Brown Andrew Morgan Donald J. Maclean Mark D. Curtis Bruno P.A. Cammue Willem F. Broekaert 1998Plant Molecular Biology1998,,6:1
5Influence of Tin Addition on the Microstructure and Mechanical Properties of Al-Si-Cu-Mg and Al-Si-Mg Casting Alloys显示文摘A.M.A. Mohamed F.H. Samuel A.M. Samuel H.W. Doty S. Valtierra 2008Metallurgical and Materials Transactions A2008,,3:1
6Influence of additives on the impact toughness of Al–10.8% Si near-eutectic cast alloys显示文摘A.M.A. Mohamed F.H. Samuel A.M. Samuel H.W. Doty 2009Materials and Design2009,,:1
7Impact toughness and fractography of Al–Si–Cu–Mg base alloys显示文摘M.F. Ibrahim E. Samuel A.M. Samuel A.M.A. Al-Ahmari F.H. Samuel 2011Materials and Design2011,,:1
8Predictive machinability models for a selected hard material in turning operations显示文摘A.M.A. Al-Ahmari 2007Journal of Materials Processing Tech2007,,1:1
9Accumulation of Four Metals in Tissues of Corchorus olitorius and Possible Mechanisms of Their Tolerance显示文摘A.M.A. Mazen 2004Biologia Plantarum2004,,2:1
10Wound dressings loaded with an anti-inflammatory jucá ( Libidibia ferrea ) extract using supercritical carbon dioxide technology显示文摘A.M.A. Dias A. Rey-Rico R.A. Oliveira S. Marceneiro C. Alvarez-Lorenzo A. Concheiro R.N.C. Júnior M.E.M. Braga H.C. de Sousa 2013The Journal of Supercritical Fluids2013,,:1
11Pomegranate extract inhibits Staphylococcus aureus growth and subsequent enterotoxin production显示文摘L.C. Braga J.W. Shupp C. Cummings M. Jett J.A. Takahashi L.S. Carmo E. Chartone-Souza A.M.A. Nascimento 2004Journal of Ethnopharmacology2004,,:1
12Effects of Individual and Combined Additions of Pb, Bi, and Sn on the Microstructure and Mechanical Properties of Al-10.8Si-2.25Cu-0.3Mg Alloy显示文摘A.M.A. Mohamed F.H. Samuel A.M. Samuel H.W. Doty 2009Metallurgical and Materials Transactions A2009,,1:1
13Metallurgical parameters controlling the microstructure and hardness of Al–Si–Cu–Mg base alloys显示文摘M.F. Ibrahim E. Samuel A.M. Samuel A.M.A. Al-Ahmari F.H. Samuel 2010Materials and Design2010,,4:1
14Adomian’s decomposition method for solving an intermediate fractional advection–dispersion equation显示文摘A.M.A. El-Sayed S.H. Behiry W.E. Raslan 2009Computers and Mathematics with Applications2009,,5:1
15幼儿异位肝扭转1例Elsayes H.B. ElzeinM.A. Razik A.M.A. Olude I.O. 高蕊 2005世界核心医学期刊文摘(儿科学分册)2005,0,8:0
16A STABILITY RESULT ON SOLUTIONS TO CERTAIN FOURTH ORDER NON-HOMOGENEOUS DIFFERENTIAL EQUATIONS显示文摘In this paper,we study the fourth order non-homogeneous differential equations x(4) + f1()+ f2() + f3(■) + f4(x) = p(t,x,■,,x),and obtain suffcient conditions,under which the solutions to the system tend to zero as t →∞.A.M.A. Abou-El-Ela A.I. Sadek E.S. Farghaly 2009Annals of Differential Equations2009,25,3:0
17ON THE STABILITY OF SOLUTIONS TO A CERTAIN FOURTH-ORDER VECTOR DELAY DIFFERENTIAL EQUATION显示文摘In this paper, by constructing a Lyapunov functional, sufficient conditions for the uniform stability of the zero solution to a fourth-order vector delay differential equation are given.A.M.A. Abou-El-Ela A.I. Sadek A.M. Mahmoud 2012Annals of Differential Equations2012,28,1:0
18Seed germination and seedling growth of Pycnanthus angolensis (Welw.) Warb., African false nutmeg显示文摘This study investigated the germination behavior and seedling growth of Pycnanthus angolensis seeds.The germination study was carried out in the laboratory and included pretreatment studies and observation of the seed-germination process.For each treatment,three replications of 20 seeds were sown in a transparent plastic germination box(12cm×22cm×5cm)lined with moistened filter paper at room temperature.To monitor seedling growth,seedlings were transplanted into pots filled with topsoil and laid out in a completely randomized design.Ten seedlings replicated thrice were measured monthly;and the shoot height,leaf area,and root length,as well as the fresh and dry weights of the seedlings,were recorded.Results showed that mechanically scarified seeds exhibited the significantly highest germination percent(83.33%,P<0.005),followed by control seeds(70.83%),whereas seeds treated with 98%sulphuric acid(H2SO4)displayed the lowest germination percent(1.67).The endospermous seeds exhibited cryptogeal germination,while seeds stored for a month(with or without arils)failed to germinate.During seed germination,radicle protrusion continued with a pseudo-opening of the root,through which the brownish cotyledonary petiole was emitted,thus releasing the plumule at the posterior position.Moreover,P.angolensis exhibited a slow growth rate,attaining a shoot height of 73 cm within a year.The highest positive change in leaf number and area was recorded in the fourth month,a period during which the least change in shoot height occurred.The study concluded that mechanical scarification of the seeds ensured significant and faster germination than chemical scarification or no treatment at all.Additionally,P.angolensis displayed a cryptogeal germination,with the seedling growth of the tree species observed to be slow.Akinropo M.S. Sakpere A.M.A. 2019Research in Cold and Arid Regions2019,11,5:0
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