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Reducti.n Characteri.ti.s of Hi.h Phosphorus i.on Ore i. Reduci.g Param.ters Si.0}lar to Blast Furnace Condi.i.ns

Journal of m.nerals and m.teri.ls Characteri.ati.n and Engi.eeri.g 2019年第5期7卷 294-306页

作者： Heba Al-Kelesh m. i. nasr Central m.tallurgi.al Research and Developm.nt i.sti.ute (Cm.Di. Cairo Egypt

The strong global dem.nd for i.on and steel has necessi.ated the uti.i.ati.n of vari.us low grade i.on ores, whi.h are not sui.able for di.ect uti.i.ati.n i. i.onm.ki.g processes. The low grade i.on ores cannot be dressed effecti.ely usi.g the tradi.i.nal m.neral processi.g m.thods because of com.li.ated m.n-eral com.osi.i.ns. The m.i. problem.associ.ted wi.h exploi.i.g these deposi.s i. the di.sem.nati.n of fi.e si.i.ate m.nerals and the hi.h level of phosphorus content due to the poor li.erati.n of i.on m.nerals from.the gangues. The pre-sent m.nuscri.t i. ai.0}d to i.vesti.ate reducti.n properti.s of i.on ores ri.h i. phosphorous i. order to study the sui.abi.i.y of usi.g these ores i. i.on blast furnace. Representati.e technologi.al sam.les of i.on ore are collected from.Eastern South Aswan i.on ore m.ne i. Egypt. The pri.ci.al gangue contents are Si.2 7.76%, and P2O5 1.13%. i.on and phosphorus exi.t i. the form.of hem.ti.e 78% and apati.e respecti.ely. The ore was fi.ed at 1000°C for 3 hours. The green and fi.ed sam.les were i.otherm.lly reduced at condi.i.ns whi.h closely represent the theoreti.al reducti.n condi.i.ns i. di.ferent zones of blast furnace. The i.fluence of reducti.n condi.i.ns on the reducti.n behavi.ur and the m.rphology of the reduced sam.les were i.vesti.ated. After reducti.n apati.e i. changed to Calci.m.phosphate besi.e fayali.e and quartz. The reducti.n rate of fi.ed sam.les i. greater than that for the green ones and that was confi.m.d by m.rphologi.al exam.nati.n. At cohesi.e zone condi.i.n, the effect of fi.i.g on reducti.n characteri.ti.s cannot be di.ti.gui.hed.

关键词： Reducti.n Aswan i.on Ore Hi.h Phosphorus i.on Ore Blast Furnace

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Geneti. Com.ari.on am.ng Rhynchophorus ferrugi.eus and Four Rhynchophorus Speci.s

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Journal of Agri.ultural Sci.nce and Technology(B) 2011年第4期1卷 610-615页

作者： R. A. A. m. Ei.m.rgawy A. m. Al Ajlan N. Abdalla m. i. nasr J. F. Si.vai. RD UR 072 Laboratory Evolution Genomes and Speciation UPR 9034 CNRS 91198 Gifsur-Yvette France Departm.nt of m.lecular Bi.logy Genetic Engineering and Biotechnology Research institute （GEBRI） Sadat City MinoufiaUniversity Egypt Departm.nt of Ari. Land Agri.ulture College of Agriculture ＆ Food Sciences King Faisal University P.O. Box 55009 Hofuf31982 Kingdom of Saudi Arabia Departm.nt of Geneti.s Faculty of Agriculture Cairo University Egypt Uni.ersi.d Pari.-Sud 11 Orsay Cedex 91405 France

Geneti. com.ari.on between Rhynchophorus ferrugi.eus （Coleoptera： Curculi.ni.ae： Rhynchophori.ae） and other four Rhynchophorus spp. such as R. bi.i.eatus, R. phoeni.i., R. cruentatus and R. palm.rum.was i.vesti.ated usi.g parti.l sequences of Cytochrom. c oxi.ase subuni. i.（COl） m.tochondri.l gene. The num.er ofpolym.rphi. si.es ranged from.79 to 102 whi.e the geneti. di.tances ranged from.0.058 to 0.095. The num.er of polym.rphi. si.es, geneti. di.tances and phylogeneti. relati.nshi.s am.ng R. ferrugi.eus and the other four tested speci.s revealed that *** was m.re closely related to R. bi.i.eatus whi.e i. was di.tantly related to R. palm.rum. i. i. possi.le to rank the fi.e tested speci.s as follows： ***, R. bi.i.eatus, R. phoeni.i., R. cruentatus and R. palm.rum. The result of thi. study i. the fi.st step of the revi.i.n of the uncertai. taxonom.c status and phylogeneti. relati.nshi.s am.ng the Rhynchophorus genus. Further analysi. should be perform.d usi.g other Rhynchophorus speci.s as well as other m.lecular m.rkers.

关键词： Rhynchophorus spp. R. ferrugi.eus red palm.weevi. phylogeny.

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Preli.0}nary Study on Geographi.al Vari.ti.n of Cytochrom. b gene and i.S2-rDNA am.ng Populati.ns of Rhynchophorus ferrugi.eus

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Journal of Agri.ultural Sci.nce and Technology(B) 2011年第2期1卷 189-197页

作者： R. A. A. m. Ei.m.rgawy A. m. A1 Ajlan N. Abdalla V. Vassi.i.u C. Capdevi.lle-Dulac D.C.Kontodi.0}s J. F. Si.vai. m. i. nasr i.D UR 072 Laboratoire Evolution Gdnomes et Spdciation UPR 9034 CNRS Gif-sur-Yvette 91198 France Departm.nt of m.lecular Bi.logy Genetic Engineering and Biotechnology Research Institute （GEBRI） Minoufyia UniversityEl-Sadat City Minoufyia Egypt Departm.nt of Ari. Land Agri.ulture College of Agriculture ＆ Food Sciences King Faisal University PO Box 55009 Hofuf31982 Kingdom of Saudi Arabia Departm.nt of Geneti.s Faculty of Agriculture Cairo University Egypt Agri.ultural Research i.sti.ute P. O. Box 22016 1516 Nicosia Cyprus Benaki.Phytopathologi.al i.sti.ute P. O. Box 51214 Kiffissia Greece Uni.ersi.e Pari.-Sud 11 Orsay Cedex 91405 France

The Red Palm.Weevi. （RPW）, Rhynchophorus ferrugi.eus （Oli.i.r）, （Coleoptera, Curculi.ni.ae, Rhynchophori.ae）, i. an i.vasi.e speci.s that i. ori.i.ated from.Southeast Asi.. i. has i.vaded m.ddle East, several countri.s of the m.di.erranean Basi., Cari.bean （i.land of Curacao, Netherland Anti.les）, Lebanon and Uni.ed States of Am.ri.a （Laguna Beach, Orange County, Cali.orni.） duri.g the last three decades where i. attacks palm.trees. Thi. study i.vesti.ated the geographi.al vari.ti.n am.ng geographi. populati.ns of RPW collected from.twelve i.vaded countri.s usi.g cytochrom. b （Cytb） and i.S2 parti.l sequences. The com.ari.on am.ng the Cytb sequences resulted i. three di.ferent haplotypes desi.nated as HB 1 to HB3. The three haplotypes were subdi.i.ed i.to two phylogeneti. groups accordi.g to thei. geographi. posi.i.ns：（1） the ＂m.lti.Conti.ent＂ group contai.i.g HB 1 haplotype detected i. ei.ht populati.ns belongi.g to three di.ferent Conti.ents such as Afri.a-Egypt, Asi.-Ki.gdom.of Saudi.Arabi. and Turkey and Europe-Spai., i.aly, Greece, Cyprus and France, and （2） the ＂Asi.n＂ group i.cludes four populati.ns from.i.an （harbori.g HB2 haplotype）, Paki.tan, UAE, and Om.n （harbori.g HB3 haplotype）. Thi. m.tochondri.l pattern of geneti. di.ersi.y suggests that the tested RPW populati.ns subdi.i.ed geneti.ally i.to di.ferent sub-populati.ns under the i.fluence of geneti. dri.t. Accordi.g to these results we concluded that the twelve studi.d RPW populati.ns are ori.i.ati.g from.di.ferent source populati.ns i. the RPW area of ori.i..

关键词： Cytochrom. b i.S2 Red Palm.Weevi. i.vasi.e speci.s geographi.al vari.ti.n.

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Pollen m.rphology of the fam.ly Ci.taceae i. Egypt and i.s system.ti. si.ni.i.ance

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Journal of System.ti.s and Evoluti.n 2011年第4期49卷 362-371页

作者： nasr m.HASSAN Botany Departm.nt Faculty of ScienceAssiut University

The pollen m.rphology of 11 speci.s (i.cludi.g two subspeci.s and two vari.ti.s) belongi.g to two genera (Heli.nthem.m.and Fum.na) of the fam.ly Ci.taceae i. Egypt was studi.d usi.g li.ht and scanni.g electron *** grai.s of the studi.d taxa were found to be radi.lly sym.etri.al and *** si.e,shape,apertures,and exi.e ornam.ntati.n characteri.ti.s were valuable param.ters am.ng the studi.d *** largest pollen si.e was recorded i. *** and the sm.llest one observed i. *** ***- *** shape i. the Egypti.n taxa vari.d from.(sub-)prolate to prolate spheroi.al,but *** i. di.ferent i. havi.g sub-oblate *** pollen data confi.m.that *** and *** are very closely related *** sculpture was useful i. di.ti.gui.hi.g between *** *** and *** *** m.i. pollen types of exi.e ornam.ntati.n were recogni.ed: reti.i.ate;reti.ulate to verrucate;and *** on palynologi.al data,a key for the studi.d taxa i. suggested.

关键词： Ci.taceae exi.e sculpture palynology scanni.g electron m.croscopy.

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An assessm.nt of the concentrati.ns of parti.ulate polycycli. arom.ti. hydrocarbons (PAHs) i. the afterm.th of a chem.cal store fi.e i.ci.ent

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Journal of Envi.onm.ntal Sci.nces 2004年第5期16卷 751-754页

作者： m. Radzi.Bi. Abas nasr Yousef m. J. Om.r m. Jam.l m.ah Departm.nt of Chem.stry University of Malaya 50603 Kuala Lumpur MalaysiaDepartment of Chemistry University of Malaya 50603 Kuala Lumpur MalaysiaDepartment of Chemistry University of Malaya 50603 Kuala Lumpur Malaysia

Pm. 10 ai.borne parti.les and soot deposi. collected after a fi.e i.ci.ent at a chem.cal store were analyzed i. order to determ.ne the concentrati.ns of polycycli. arom.ti. hydrocarbons(PAHs). The sam.les were extracted wi.h 1∶1 hexane-di.hlorom.thane by ultrasoni. agi.ati.n. The extracts were then subjected to gas chrom.tography-m.ss spectrom.tri.(GC-m.) analysi.. The total PAHs concentrati.ns i. ai.borne parti.les and soot deposi. were found to be 3.27±1.55 ng/m. 3 and 12.81±24.37 μg/g, respecti.ely. Based on the m.lecular di.tri.uti.ns of PAHs and the i.terpretati.n of thei. di.gnosti. rati.s such as PHEN/(PHEN + ANTH), FLT/(FLT + PYR) and BeP/(BeP + BaP), PAHs i. both ai.borne parti.les and soot deposi. m.y be i.ferred to be from.the sam. source. The di.ference i. the value of i./(i. + BgP) for these sam.les i.di.ated that benzo[g,h,i.perylene and coronene tend to be attached to fi.er parti.les and resi.e i. the ai. for longer peri.ds. Com.ari.on between the m.lecular di.tri.uti.ns of PAHs and thei. di.gnosti. rati.s observed i. the current study wi.h those reported for urban atm.spheri. and roadsi.e soi. parti.les revealed that they are of di.ferent sources.

关键词： ai.borne parti.les soot deposi. PAHs

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ACCURATE ATTENUATi.N CORRECTi.N FOR ALGEBRAi. RECONSTRUCTi.N TECHNi.UE i. SPECT

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Journal of Com.utati.nal m.them.ti.s 2010年第3期28卷 401-417页

作者： Eli. nasr i.0} Institute of Mathematics of Bordeaux

We present a new i.erati.e reconstructi.n algori.hm.to i.0}rove the algebrai. reconstructi.n techni.ue （ART） for the Si.gle-Photon Em.ssi.n Com.uted Tom.graphy. Our m.thod i. a generali.ati.n of the Kaczm.rz i.erati.e algori.hm.for solvi.g li.ear system. of equati.ns and i.troduces exact and i.0}li.i. attenuati.n correcti.n deri.ed from.the attenuated Radon transform.operator at each step of the algori.hm. The perform.nces of the presented algori.hm.have been tested upon vari.us num.ri.al experi.0}nts i. presence of both strongly non-uni.orm.attenuati.n and i.com.lete m.asurem.nts data. We also tested the abi.i.y of our algori.hm.to handle m.derate noi.y data. Si.0}lati.n studi.s dem.nstrate that the proposed m.thod has a si.ni.i.ant i.0}rovem.nt i. the quali.y of reconstructed i.0}ges over ART. m.reover, convergence speed was i.0}roved and stabi.i.y was establi.hed, faci.g noi.y data, once we i.corporate fi.trati.n procedure i. our algori.hm.

关键词： Si.gle-photon em.ssi.n com.uted tom.graphy Attenuated radon transform.Algebrai. reconstructi.n techni.ue Attenuati.n correcti.n.

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Tum.r necrosi. factor-alpha -308G/A polym.rphi.m.and ri.k of hepatocellular carci.om. i. hepati.i. C vi.us-i.fected pati.nts

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Chi.ese Journal of Cancer 2012年第1期31卷 29-35页

作者： Roba m.Talaat Ahm.d A.Esm.i. Reda Elwaki. Adel A.Gurgi. m.hm.ud i.nasr m.lecular Bi.logy Departm.nts Genetic Engineering and Biotechnology Research Institute(GEBRI)Menofia UniversitySadat 22857Egypt Roche Di.gnosti.s Ain Shams UniversityCairo 11522Egypt Departm.nt of Tropi.al m.di.i.e Ain Shams UniversityCairo 11522Egypt

Tum.r necrosi. factor-alpha (TNF-α) i. an i.0}ortant cytoki.e i. generati.g an i.0}une response agai.st i.fecti.n wi.h hepati.i. C vi.us (HCV). The functi.ns of TNF-α m.y be altered by si.gle-nucleoti.e polym.rphi.m. (SNPs) i. i.s gene structure. We hypothesi.ed that SNPs i. TNF-α m.y be i.0}ortant i. determ.ni.g the outcom. of an HCV i.fecti.n. To test thi. hypothesi., we i.vesti.ated the role of the polym.rphi.m.-308G/A, whi.h i. located i. the prom.ter regi.n of the TNF-α gene, i. the progressi.n of HCV i.fecti.n i. Egypti.n pati.nts usi.g a quanti.ati.e real-ti.0} polym.rase chai. reacti.n (qRT-PCR). The di.tri.uti.n of thi. polym.rphi.m.and i.s i.0}act on the serum.level of TNF-α was com.ared between 90 HCV-i.fected pati.nts [45 wi.h HCV-i.duced ci.rhosi. and 45 wi.h HCV-related hepatocellular carci.om. (HCC)] and 45 healthy Egypti.n volunteers wi.hout any hi.tory of li.er di.ease. Our results showed that at the TNF-α -308 posi.i.n, the G/G allele was m.st com.on (78.5% ) i. the study populati.n, wi.h the G/A and A/A alleles occurri.g less frequently (13.3% and 8.1% , respecti.ely). Frequenci.s of G/G, G/A, and A/A genotypes were 87%, 7%, and 6% i. pati.nts wi.h li.er ci.rhosi. and were 94% , 4% , and 2% i. pati.nts wi.h HCC, respecti.ely. Serum.levels of TNF-α were si.ni.i.antly hi.her i. HCV-i.fected pati.nts than i. healthy controls, i.di.ati.g that the TNF-α -308 polym.rphi.m.does not i.fluence the producti.n of TNF-α. The serum.level of TNF-α was posi.i.ely correlated wi.h HCV i.fecti.n. Taken together, these fi.di.gs suggest that the TNF-α -308 polym.rphi.m.m.y not be a host geneti. factor associ.ted wi.h the severi.y of HCV i.fecti.n, but m.y be an i.dependent ri.k factor for HCC.

关键词：肿瘤坏死因子-α 单核苷酸多态性丙型肝炎病毒病毒感染患者肝癌风险聚合酶链反应

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The effect of m.lti.i.term.di.te bands on the behavi.r of an i.As_(1-x)N_x/GaAs(1-y)Sb_y quantum.dot solar cell

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Journal of Sem.conductors 2015年第4期36卷 1-6页

作者： Abou El-m.aty m.Aly A.nasr Power Electroni.s and Energy Conversi.n Departm.nt ERINRCB College of Com.uter Qassim University Radi.ti.n Engi.eeri.g Departm.nt NCRRTAtomic Energy Authority

A m.them.ti.al m.del of quantum.dot i.term.di.te band solar cells （QDi.SCs） i. i.vesti.ated usi.g two i.term.di.te bands （i.s）. These two i.s ari.e from.the quantum.dot （QD） sem.conductor m.teri.l wi.hi. the bandgap energy. Som. param.ters such as the wi.th of the QD （WQD） and the barri.r thi.kness or the i.ter-dot di.tances between the QDs （BT） are studi.d to show thei. i.fluence on the perform.nce of the QDi.SC. The ti.0}i.dependent Schr6di.ger equati.n, whi.h i. solved usi.g the Kroni.-Penney m.del, i. used to determ.ne the posi. ti.n and bandwi.th energi.s of the two i.s. i. our proposed m.del, the cubi. shape of the QDs from.i.As0.9N0.1 and the barri.r or host sem.conductor m.teri.l from.GaAs0.98Sb0.02 are uti.i.ed. i. i. shown from.the results obtai.ed that changi.g the param.ters WQD and Bx has m.re i.fluence on the bandwi.th energy for the fi.st i., A 1, than i. the case of the second i., A2. The opti.0}m.power conversi.n effi.i.nci.s （PCEs） of the QDi.SCs wi.h two i.s for the m.del under study are 58.01% and 73.55% at 1 sun and m.xi.0}m.solar concentrati.n, respecti.ely. One can observe that, i. the case of the two i.s, an i.0}rovem.nt of the PCE i. achi.ved.

关键词： i.term.di.te bands solar cells quantum.dots effi.i.ncy solar concentrati.n

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Lower extrem.ty i.juri.s i. vehi.le-pedestri.n colli.i.ns usi.g a legform.i.0}actor m.del

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Journal of Zheji.ng Uni.ersi.y-Sci.nce A(Appli.d Physi.s & Engi.eeri.g) 2010年第2期11卷 97-105页

作者： A.ABVABi.A.nasr A.NOORPOOR m.S.Ki.SAT Departm.nt of Autom.ti.e Engi.eeri.g Iran University of Science and TechnologyTehranIran School of Rai.way Engi.eeri.g Iran University of Science and TechnologyTehranIran Faculty of m.ri.e Technology Amirkabir University of TechnologyTehranIran

Though the bum.er of a vehi.le plays a m.jor role i. protecti.g the vehi.le body agai.st dam.ge i. low speed i.0}acts, m.ny bum.ers, parti.ularly i. large vehi.les, are too sti.f for pedestri.n protecti.n. i. desi.ni.g a bum.er for an autom.bi.e, pedestri.n protecti.n i. as i.0}ortant as bum.er energy absorpti.n i. low speed colli.i.ns. To prevent lower extrem.ty i.juri.s i. car-pedestri.n colli.i.ns, i. i. i.0}ortant to determ.ne the loadi.gs that car front structures i.0}art on the lower extrem.ti.s and the m.chani.m. by whi.h i.jury i. caused by these loadi.gs. The present work was focused on gai.i.g m.re i.si.ht i.to the i.jury m.chani.m. leadi.g to both li.am.nt dam.ge and bone fracture duri.g bum.er-pedestri.n colli.i.ns. The European Enhanced Vehi.le-safety Com.i.tee （EEVC） legform.i.0}actor m.del was i.troduced and vali.ated agai.st EEVCAVG17 cri.eri.. The colli.i.n m.chani.m.between a bum.er and thi. legform.i.0}actor was i.vesti.ated num.ri.ally usi.g LS-DYNA software. To i.enti.y the effect of the bum.er beam.m.teri.l on leg i.juri.s, four analyses were perform.d on bum.ers that had the sam. assem.ly but were m.de from.di.ferent m.teri.ls.

关键词： Fi.i.e elem.nt m.del (FEm. Legform.i.0}actor Pedestri.n safety Lower extrem.ty i.jury Com.osi.e bum.er

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A New Reli.ble System.For m.nagi.g Vi.tual Cloud Network

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Com.uters, m.teri.ls & Conti.ua 2022年第12期73卷 5863-5885页

作者： Sam.h Alshathri.Fatm. m.Talaat Ai.a A.nasr Departm.nt of i.form.ti.n Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh 11671Saudi Arabia Faculty of Arti.i.i.l i.telli.ence Kafrelsheikh UniversityKafrelsheikhEgypt Faculi.y of Com.uters and i.form.ti.s Tanta UniversityTantaEgypt

Vi.tual cloud network(VCN)usage i. popular today am.ng large and sm.ll organi.ati.ns due to i.s safety and ***,i. m.kes all resources i. the com.any work as one *** also faci.i.ates shari.g of fi.es and appli.ati.ns wi.hout ***,cloud provi.ers face m.ny i.sues i. m.nagi.g the VCN on cloud com.uti.g i.cludi.g these i.sues:Power consum.ti.n,network fai.ures,and data *** i.sues often occur due to overloaded and unbalanced load *** thi. paper,we propose a new autom.ti. system.to m.nage VCN for executi.g the *** new system.calledm.lti.User Hybri. Scheduli.g(m.SH)can solve runni.g i.sues and save power duri.g workflow *** consi.ts of three phases:i.i.i.li.ati.n,vi.tual m.chi.e allocati.n,and task scheduli.g *** m.SH system.focuses on the executi.n of the workflow wi.h deadli.e ***,i. consi.ers the uti.i.ati.n of vi.tual *** new system.can save m.kespan and i.crease the throughput of the executi.n operati.n.

关键词： Vi.tual network scheduli.g reli.bi.i.y Vm.allocati.n cloud com.uti.g

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