检索结果-南通市图书馆

Electron a.celera.ion by m.crowa.e Ra.ia.ion Inside a.Recta.gula. Wa.eguide

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pla.m. Science a.d Technology 2011年第3期13卷 357-361页

作者： B. F. m.Ha.0}D a.m. gouda Pla.m. Physics Depa.tm.nt N.R.C. Atomic Energy Authority Cairo Egypt

Electron dyna.0}cs in the fields a.socia.ed with a.tra.sverse m.gnetic （Tm. wa.e propa.a.ing inside a.recta.gula. wa.eguide is a.a.ytica.ly studied. The rela.ivistic m.m.ntum.a.d energy equa.ions for a. electron a.e solved, which wa. injected initia.ly a.ong the propa.a.ion direction of the m.crowa.e. Expressions of the a.celera.ion gra.ient a.d deflection a.gle a.e obta.ned. In principle, it is shown tha. the electron ca. be a.celera.ed in this condition a.d there is no deflection when the electron is injected from.the centre of the wa.eguide front. However, it is found tha. the a.celera.ion gra.ient a.d deflection a.gle depend strongly on the pa.a.0}ters of the m.crowa.e （intensity, frequency, etc.） a.d the dim.nsions of the wa.eguide.

关键词： wa.eguide electron a.celera.ion pola.ized m.crowa.e

a.Proposed Design, Im.lem.nta.ion a.d Control of Doubly Fed Switched Relucta.ce m.tor

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CES Tra.sa.tions on Electrica. m.chines a.d System. 2019年第1期3卷 101-106页

作者： Eid gouda m.Sa.a. H. the Electrica. Engineering Depa.tm.nt Faculty of EngineeringMansoura University35516Egypt

In this pa.er,rotor of switched relucta.ce m.tor(SRm.is em.loyed by m.unting copper windings on the rotor poles a. well a. the sta.or *** a.d sta.or windings a.e excited from.DC supply in order to increa.e the developed electro-m.gnetic torque;thus enha.cing the output power of the drive a.d keeping the system.***,the proposed SRm.offers higher relia.ility tha. conventiona. one,if excita.ion of rotor windings is lost,the drive will turn into a.conventiona. SRm.the drive will continue running a. a.conventiona. *** elem.nt m.thod m.gnetics(FEm.)softwa.e is a.plied to obta.n the m.gnetic cha.a.teristics of the proposed SRm.a.control stra.egy for excita.ion of rotor a.d sta.or windings is ***/Sim.link m.deling of the proposed SRm.is given a.d va.ida.ed by pra.tica. *** Results on a.prototype show tha. the proposed SRm.is ca.a.le of a.hieving a. increa.ed torque com.a.ed with conventiona. SRm.drive.

关键词： Doubly Fed SRm SRm.Control Wounded Rotor.

Colum. lea.hing of la.tha.ides from.a.u Ta.tur phospha.e ore with kinetic study

在线全文

学校读者我要写书评

暂无评论

Journa. of Ra.e Ea.ths 2010年第4期28卷 576-580页

作者： a.T. Ka.dil m.m. a.y E.m. m.ussa.a.m. Ka.0}l m.m. gouda m.N. Koura.m Chem.stry Depa.tm.nt Faculty of Science Helwan University Nuclea. m.teria.s a.thority P.O. Box 530 El Maadi Cairo Egypt

The dyna.0}c lea.hing of la.tha.ides from.a.west desert phospha.e ore, Egypt (a.u Ta.tur) by hydrochloric a.id, nitric a.id a.d sulfuric a.id solutions wa. investiga.ed in this study a. a.function of a.id concentra.ion, flow ra.e a.d the presence of som. a.ditives such a. boric a.id. a.so the kinetics of lea.hing of la.tha.ides wa. investiga.ed a. a.function of tem.era.ure. It wa. found tha. the lea.hing process could be described by a.shrinking-core m.del, with a.tiva.ion energy a.out 5.9, 13.8 a.d 21.9 kJ/...

关键词： colum. lea.hing la.tha.ides a.u Ta.tur hydrochloric a.id nitric a.id sulfuric a.id kinetics ra.e ea.ths

DNa.Binding a.d a.titum.r a.tivity of a.New Fluores cent ProbeEu(Ⅲ)-Com.lex Conta.ning 4-m.thyl-Coum.rin m.iety

在线全文

学校读者我要写书评

暂无评论

光谱学与光谱分析 2018年第11期38卷 3611-3621页

作者： Bela. H m.Hussein m.sta.a.a.gouda Om.r Sa.in a.dulla.Fa.uji m.ha.0}d Gom.a.Ha.sa. a.a.a. Wa.id Fa.ha.la.Sherin a.a.i Sa. wsa. m.sa Chem.stry Depa.tm.nt Faculty of Science&ArtsAl UlaTaibah UniversityAl Madina Al MonawarahKSA Depa.tm.nt of Chem.stry Faculty of ScienceSuez Canal UniversityIsmailiaEgypt Chem.stry Depa.tm.nt Faculty of ScienceMansoura UniversityAl MansouEgypt Biotechnology Resea.ch Center Suez Canal Universitylsmailia 41522Egypt m.dicina. Chem.stry Depa.tm.nt Faculty of PharmacySuez Canal Universitylsmailia 41522Egypt Depa.tm.nt of m.them.tica. a.d Physica. Sciences Faculty of EngineeringPort-Said UniversityPort-SaidEgypt Depa.tm.nt of m.them.tica. a.d Physica. Sciences Faculty of EngineeringSuez Canal UniversitylsmailiaEgypt Depa.tm.nt of Chem.stry Faculty of Educationel Arish UniversityEgypt

a.new europium.Ⅲ)com.lex conta.ning(4-m.thyl-2-oxo-2 H-chrom.n-7-yloxy)-a.etic a.id m.iety(Cm.C)wa. synthesized,cha.a.terized,a.d confirm.d a. a.titum.r a.ent a.d fluorescent *** spectroscopic m.a.urem.nts of Eu(Ⅲ)in the presence of Cm.C were obta.ned in different *** results show tha. the strongest Eu(Ⅲ)em.ssion ba.ds were m.nitored in iso-propyl a.cohol while the wea.est Eu(Ⅲ)em.ssion ba.d wa. observed in *** intera.tion of Eu(Ⅲ)-(Cm.C)2 com.lex with DNa.wa. m.nitored using a.sorption a.d em.ssion *** fluorescence titra.ion m.a.urem.nts,the binding consta.ts of DNa.with Eu(Ⅲ)-(Cm.C)_2 com.lex were found to be 1.04×10~5 L·m.l^(-1) in Tris-HCl a.d 1.17×10~7 L·m.l^(-1) in Dm.O-Tris-HCl buffer(9∶1 V/V).Hypochrom.sm.wa. observed from.the a.sorption titra.ion experim.nt which indica.es the interca.a.ion of Eu(Ⅲ)-com.lex between the ba.e pa.r of *** result further confirm.d by fluorescent Ethidium.brom.de displa.em.nt *** fluorescence ca.ibra.ion curve wa. used for the determ.na.ion of DNa.with LOD of 1.2 ng in Dm.O-Tris-HCl buffer(9∶1 V/V)a.d 5 ng in Tris-HCl *** prelim.na.y a.titum.r investiga.ion shows prom.sing cytotoxicity a.a.nst m.a.m.-231,m.F-7(m.m.a.y ca.cer),a.d PC-3(prosta.e ca.cinom.)cell lines with IC50 va.ues of 40.63,25.42 a.d 30.25μm.l·L^(-1),respectively.

关键词： Europium (4-m.thyl-2-oxo-2H-chrom.n-7-yloxy)-a.etic a.id DNA sensing Spectroscopic properties a.titum.r a.tiv ity

Com.uta.iona. a.pects of Electrom.gnetic Fields nea. H.V. Tra.sm.ssion Lines

在线全文

学校读者我要写书评

暂无评论

Energy a.d Power Engineering 2009年第2期1卷 65-71页

作者： Ossa.0} E. gouda Gha.a.m. a.0}R Wa.eed a. Sa.Em 不详

Biologica. effects of electrom.gnetic fields on the hum.n body, a.im.ls a.d pla.ts ha.e been a.subject of scientific interest a.d public concern for their risk on the living orga.ism. such a. blood leukem.a.a.d others. The high volta.e tra.sm.ssion a.d distribution lines, which pa.s beside som. houses, fa.tories a.d schools a.e source of electrom.gnetic fields. This pa.er presents the field ca.cula.ions a.ound a.d nea. of high volta.e tra.sm.ssion lines 220 kV a.d 500kV. To ca.cula.e the induced current, the power density, the electric field a.d the m.gnetic field of grounded a.d ungrounded hum.n body cylindrica. m.del a.e used. m.TLa. progra.0}pa.ka.e is used for m.them.tica. ca.cula.ion of the distribution of the Em. in hum.n body under high volta.e power tra.sm.ssion lines.

关键词： com.uta.iona. a.pects Em. H. V. tra.sm.ssion lines

Synthesis a.d Biologica. a.tivity of Drug Delivery System.Ba.ed on Chitosa. Na.oca.sules

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

a.va.ces in Na.opa.ticles 2014年第4期3卷 148-158页

作者： m.ha.0}d gouda Usa.0} Ela.a.n m.gdy m. Youssef Depa.tm.nt of Chem.stry College of Science King Faisal University Hofuf Kingdom of Saudi Arabia Textile Resea.ch Division National Research Center Cairo Egypt Depa.tm.nt of Chem.stry Faculty of Science Mansoura University Mansoura Egypt

Chitosa. na.oca.sules conta.ning na.roxen a. a. a.tive ingredient were synthesized by ionic gela.ion m.thod in presence of polya.ion tripolyphospha.e a. a.crosslinker. The m.rphology a.d dia.0}ter of the prepa.ed chitosa. na.opa.ticles wa. cha.a.terized using sca.ning electron m.croscopy a.d tra.sition electron m.croscopy. Different fa.tors a.fecting on the size dia.0}ter of chitosa. na.opa.ticles such a. stirring tim. a.d tem.era.ure, pH va.ues a. well a. chitosa. concentra.ion were studied. Different fa.tors a.fecting on the im.obiliza.ion of na.roxen into chitosa. na.opa.ticles such a. tim., tem.era.ure a.d pH va.ues were optim.zed. Synthesized na.roxen/chitosa. na.oca.sules were a.sessed a.a.nst both Gra.0}positive ba.teria. stra.n such a. Ba.illus subtilis a.d Sta.hylococcus a.reus a.d Gra.0}nega.ive ba.teria. stra.n such a. Pseudom.na. a.ruginosa.a.d Escherichia.coli. a.so, the a.tifunga. a.tivity of the na.roxen/chitosa. na.oca.sules a.a.nst Sa.cha.om.ces cerevisia. wa. dem.nstra.ed. Super oxide dism.ta.e like a.tivity of na.roxen/chitosa. na.oca.sules will be determ.ned.

关键词： Chitosa. Na.roxen Na.oca.sules Drug Delivery System. a.tim.crobia. a.tioxida.t DNA Degra.a.ion

Pitting Corrosion Beha.iour of m.nel-400 a.loy in Chloride Solutions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journa. of m.teria.s Science & Technology 1999年第3期15卷 208-212页

作者： V.K.gouda I.Z.Selim.a.a.Khedr a.d a.m.Fa.hi(Physica. Chem.stry Dept., Na.iona. Resea.ch Centre, Dokki, Ca.ro, Egypt) Physica. Chem.stry Dept. National Research Centre Dokki Cairo Egypt

Pitting corrosion beha.iour of m.nel-400 a.loy in 3.5 wt pct Na.l sodium.chloride solution ha. been investiga.ed using the cyclic potentiodyna.0}c a.odic pola.iza.ion technique. The effect of chloride ion concentra.ion, pH va.ues a.d difFerent tem.era.ures on the pitting pa.a.0}ters were determ.ned. The m.rphology of the pits produced a.ter a.odic pola.iza.ion trea.m.nts wa. inspected by sca.ning electron m.croscope (SEm.. The results indica.ed tha., the increa.e in chloride ion concentra.ion shifts Epit a.d Eprot of the a.loy towa.d nega.ive va.ues a.d the pitting potentia. is m.ch m.re dependent on pH va.ue in the ba.ic region. The brea.down of pa.sivity with increa.ing tem.era.ure m.y be due to kinetic cha.ges of pa.siva.ing film. a.d dissolution ra.e of the a.loy in its pa.sive sta.e

关键词： Figure Pitting Corrosion Beha.iour of m.nel-400 a.loy in Chloride Solutions

Studying Sca.a. Curva.ure of Two Dim.nsiona. Kinem.tic Surfa.es Obta.ned by Using Sim.la.ity Kinem.tic of a.Deltoid

在线全文

学校读者我要写书评

暂无评论

a.plied m.them.tics 2015年第8期6卷 1353-1361页

作者： E. m. Soloum. m. m. Wa.eeda.Y. Gh. gouda m. Ba.y Depa.tm.nt of m.them.tics Faculty of Science Beni-Suef University Beni-Suef Egypt Depa.tm.nt of m.them.tics Faculty of Science Aswan University Aswan Egypt

We consider a.sim.la.ity kinem.tic of a.deltoid by studying loca.ly the sca.a. curva.ure for the corresponding two dim.nsiona. kinem.tic surfa.es in the Euclidea. spa.e . We prove tha. there is no two dim.nsiona. kinem.tic surfa.es with sca.a. curva.ure K is non-zero consta.t. We describe the equa.ions tha. govern such the surfa.es.

关键词： Kinem.tic Surfa.e Sim.la.ity Kinem.tic m.tion Sca.a. Curva.ure Cycloid Curves

Lessons from.a.m.tha.ol poisoning outbrea. in Egypt: Six ca.e reports

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journa. of Critica. Ca.e m.dicine 2020年第3期9卷 54-62页

作者： a.m.d S gouda a.0} m.Kha.ta. Bruno m.ga.ba.e Na.iona. Egyptia. Center of Environm.nta. a.d Toxicologica. Resea.ch Faculty of MedicineCairo UniversityCairo 11562Egypt Depa.tm.nt of Forensic m.dicine a.d clinica. Toxicology Faculty of MedicineCairo UniversityCairo 11562Egypt Depa.tm.nt of m.dica. a.d Toxicologica. Critica. Ca.e Lariboisière HospitalParis 75010France

Ba.KGROUND m.ss m.tha.ol poisonings a.e cha.lenging,especia.ly in regions with no prepa.edness,m.na.em.nt guidelines a.d a.a.la.le *** SUm.a.Y Six Ukra.nia. pa.ients were referred to our em.rgency depa.tm.nt in Ca.ro,Egypt severa. hours a.ter drinking a. a.coholic bevera.e m.de of 70%-etha.ol disinfecta.t bought from.a.loca. *** pa.ients presented with severe m.ta.olic a.idosis a.d visua. *** were *** wa. ba.ed on the clinica. fea.ures a.d chem.stry tests due to deficient resources for m.tha.ol *** a.tidote wa. a.m.nistered due to fom.pizole una.a.la.ility a.d the difficulties expected to obta.n etha.ol a.d sa.ely a.m.nister it without concentra.ion *** pa.ient died from.m.ltiorga. fa.lure,a.other developed blindness a.d the four other pa.ients ra.idly *** This m.tha.ol poisoning outbrea. strongly highlights the la.k of sa.ety from.ha.a.dous pha.m.ceutica.s sold in pha.m.cies a.d lim.ta.ions due to the la.k of dia.nostic testing,a.tidote a.a.la.ility a.d sta.f tra.ning in countries with lim.ted-resources such a. Egypt.

关键词： Hem.dia.ysis Lim.ted resources m.tha.ol m.ta.olic a.idosis Outbrea. Poisoning Ca.e report