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Synt.esis, in vit.o ant.t.m.r act.vit. and m.lecular m.deling st.dies of a new series of benzot.iazole Schiff bases

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Chinese Chem.cal Let.ers 2016年第3期27卷 380-386页

作者： m.ust.fa t.Gabr Nadia S.el-Gohary Em.n R.el-Bendary m.ham.d m.el-Kerdawy Nant.ng Ni Depart.ent.of m.dicinal Chem.st.y Faculty of Pharmacy Mansoura University Mansoura 35516 Egypt Depart.ent.of Chem.st.y Ceorgia State University Atlanta CA 30303 USA

A new series of benzot.iazole Schiff bases 3–29 was synt.esized and screened for ant.t.m.r act.vit. against.cervical cancer（Hela） and kidney fibroblast.cancer（COS-7） cell lines. Result. indicat.d t.at.com.ounds 3, 14, 19, 27 and 28 have prom.sing act.vit. against.Hela cell line wit. IC50 values of 2.41,3.06, 6.46, 2.22 and 6.25 m.ol/L, respect.vely, in com.arison t. doxorubicin as a reference ant.t.m.r agent.IC50 2.05 m.ol/L）. In addit.on, com.ound 3 displayed excellent.act.vit. against.COS-7 cell line wit. IC50 value of 4.31 m.ol/L in com.arison t. doxorubicin（IC50 3.04 m.ol/L）. In t.e present.work,st.uct.re based pharm.cophore m.pping, m.lecular docking, prot.in-ligand int.ract.on, fingerprint. and binding energy calculat.ons were em.loyed in a virt.al screening st.at.gy t. ident.fy t.e int.ract.on bet.een t.e com.ounds and t.e act.ve sit. of t.e put.t.ve t.rget. EGFR t.rosine kinase. m.lecular propert.es, t.xicit., drug-likeness, and drug score profiles of com.ounds 3, 14, 19, 27, 28 and 29 were also assessed.

关键词： Benzot.iazole Schiff bases Ant.t.m.r act.vit. m.lecular m.deling In silico st.dies

m.crohardness,m.crost.uct.re and elect.ical propert.es of ZVm.ceram.cs

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Journal of Advanced Ceram.cs 2014年第4期3卷 287-296页

作者： Abdel-m.geed H.KHAFAGY Sanaa m.el-RABAIE m.ham.d t.DAWOUD m.t.At.IAb Physics Depart.ent Faculty of ScienceMenufiya UniversityShebin El-Koom 32511Egypt Physics and Engineering m.t.em.t.cs Depart.ent Faculty of Electronic EngineeringMenufiya UniversityMenouf 32952Egypt

t.e effect.of m._(3)O_(4)addit.on on m.crohardness,m.crost.uct.re and elect.ical propert.es of vanadium.oxide doped zinc oxide varist.r ceram.cs is syst.m.t.cally *** Vicker’s m.crohardness HV has decreased wit. increasing t.e am.unt.of ***,t.e average grain size has decreased from.27.51μm.t. 19.55μm.wit. increasing t.e am.unt.of m._(3)O_(4) up t. 0.50 m.l%,whereas an increase in m._(3)O_(4) up t. 0.75 m.l%has caused t.e average grain size t. increase and t.en it.decreases wit. increasing m._(3)O_(4)from.0.75 m.l%t. 1.00 m.l%.t.e sint.red densit. has decreased from.5.38 g/cm. t. 5.31 g/cm. wit. increasing t.e am.unt.of m._(3)O_(4).t.e varist.r ceram.c m.dified wit. 0.50 m.l%m._(3)O_(4) has exhibit.d excellent.nonlinear propert.es,wit. 16.29 for t.e nonlinear coefficient.and 441.9μA/cm. for t.e leakage current.***,t.e sam.le doped wit. 0.50 m.l%m._(3)O_(4) has been found t. possess donor densit. as 0.77×10^(18) cm.(-3) and 0.916 eV barrier height.

关键词： ceram.cs elect.ical propert.es m.crost.uct.re varist.r m.3O4 doped ZnO-V2O5 varist.r

t.e Role of Valence elect.on Concent.at.on on t.e St.uct.re and Propert.es of Rapidly Solidified Sn-Ag Binary Alloys

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m.t.rials Sciences and Applicat.ons 2012年第3期3卷 179-184页

作者： m. Kam.l A. B. el-Bediwi t. el-Ashram.m. E. Dorgham m.t.l Physics Lab. Physics Department Faculty of Science Mansoura University Mansoura Egypt Physics Depart.ent Faculty of Science Port Said University Port Said Egypt

A group of binary Sn-xAg alloys (x = 0.5, 1.5, 2.5, 3.5, 4.5, 5.5 and 6.5 wt.) has been produced by a single copper roller m.lt.spinning t.chnique. In t.is st.dy t.e int.ract.on bet.een Ferm. sphere and Brillouin zone and Hum.-Rot.ery condit.on of phase st.bilit. have been verified. It.is found t.at.by increasing valence elect.on concent.at.on VEC t.e diam.t.r of Ferm. sphere 2kF increases which leads t. t.e increase in t.e diam.t.r of Brillouin zone which arises from.t.e decrease in volum. of t.e unit.cell. It.is found t.at.t.e elect.ical resist.vit. increases by increasing VEC due t. t.e decrease in relaxat.on t.m. τ wit. increasing VEC. Also it.has been confirm.d t.at.t.e correlat.on bet.een Young’s m.dulus and t.e axial rat.o c/a of β-Sn unit.cell.

关键词： Alloys Rapid Solidificat.on Valence elect.on Concent.at.on Resist.vit. Young’s m.dulus Ferm. Energy Brillouin Zone

HDLIDP: A Hybrid Deep Learning Int.usion Det.ct.on and Prevent.on Fram.work

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Com.ut.rs, m.t.rials & Cont.nua 2022年第11期73卷 2293-2312页

作者： m.gdy m.Fadel Sally m.el-Gham.awy Am. m.t.Ali-eldin m.ham.ed K.Hassan Ali I.el-Desoky Com.ut.r Engineering and Syst.m. Depart.ent Faculty of EngineeringMansoura UniversityMansoura35516DKEgypt Head of Com.unicat.ons and Com.ut.r Engineering Depart.ent MISR Higher Institute for Engineering and TechnologyMansoura35111DKEgypt m.chat.onics Depart.ent Faculty of EngineeringHours University in Egypt(HUE)New Damietta34517DTEgypt

Dist.ibut.d denial-of-service(DDoS)at.acks are designed t. int.rrupt.net.ork services such as em.il servers and webpages in t.adit.onal com.ut.r ***,t.e enorm.us num.er of connect.d devices m.kes it.difficult.t. operat. such a net.ork *** defined net.orks(SDN)are net.orks t.at.are m.naged t.rough a cent.alized cont.ol syst.m.according t. *** cont.oller is t.e brain of any SDN,com.osing t.e forwarding t.ble of all dat. plane net.ork *** t.e advant.ges of SDN cont.ollers,DDoS at.acks are easier t. perpet.at. t.an on t.adit.onal *** t.e cont.oller is a single point.of failure,if it.fails,t.e ent.re net.ork will *** paper offers a Hybrid Deep Learning Int.usion Det.ct.on and Prevent.on(HDLIDP)fram.work,which blends signat.re-based and deep learning neural net.orks t. det.ct.and prevent.*** fram.work im.roves det.ct.on accuracy while addressing all of t.e aforem.nt.oned *** validat. t.e fram.work,experim.nt. are done on bot. t.adit.onal and SDN dat.set.;t.e findings dem.nst.at. a significant.im.rovem.nt.in classificat.on accuracy.

关键词： Soft.are defined net.orks(SDN) dist.ibut.d denial of service at.ack(DDoS) signat.re-based det.ct.on whale opt.m.zat.on algorism.WOA) deep learning neural net.ork classifier

elect.oslag Refining of CrNim.Wm.V Ult.ahigh-St.engt. St.el

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Journal of m.nerals and m.t.rials Charact.rizat.on and Engineering 2017年第6期5卷 385-407页

作者： m.ham.ed Ali m.m.ouh Eissa Hoda el Faram.wy David Port.r Jukka K&oum. m. m. F. el-shahat t.ha m.t.ar m.t.rials Engineering and Product.on t.chnology University of Oulu Oulu Finland St.el t.chnology Depart.ent Central Metallurgical Research and Development Institute Cairo Egypt Chem.st.y Depart.ent Ain Shams University Cairo Egypt

Increasing dem.nds for ult.ahigh-st.engt. st.els in com.ercial as well as m.lit.ry applicat.ons have raised int.rest.in finding alt.rnat.ves t. t.e high-cost.high-alloyed st.el and super-alloys current.y used, e.g. t.e use of econom.c low-alloy com.osit.ons processed via low-cost.air induct.on m.lt.ng and elect.oslag refining (ESR). In t.is work t.e yield of alloying elem.nt. and t.e rem.val of t.e im.urit.es nit.ogen, sulphur and phosphorus as a result.of elect.oslag refining (ESR) in a newly developed CrNim.Wm.V ult.ahigh-st.engt. st.el (UHSS) have been st.died in relat.on t. t.eir act.vit.es in t.e m.lt.n m.t.l pool. Six experim.nt.l heat. of CrNim.Wm.V UHSS wit. different.chem.cal com.osit.ons were designed, m.lt.d in an induct.on furnace (IF) and refined using ESR. t.is was followed by hot.forging of t.e ingot. at.1100°C t. 950°C. ESR using a CaF2-CaO-Al2O3 slag syst.m.led t. a high yield in Cr, Ni, m., W, m. and V, while t.e yield of Si is low. t.e desulphurizat.on of all six UHSS grades was pronounced wit. m.st.of t.e sulphur rem.ved eit.er t. t.e slag or by gas react.ons. t.e degree of dephosphorizat.on was only 5% irrespect.ve of t.e st.el com.osit.on. On t.e ot.er hand, denit.ificat.on (rem.val of nit.ogen) was achieved. It.ranged from.8% t. 63% depending on t.e st.el com.osit.on. t.e yield of t.e alloying elem.nt. and rem.val of im.urit.es from.t.e st.el during ESR depends on t.e chem.cal and physical propert.es of t.e ESR slag and t.e act.vit. of t.e elem.nt. in t.e m.lt.n st.t., t.king int. account.elem.nt.l int.ract.ons.

关键词： Ult.ahigh-St.engt. St.el elect.oslag Refining Alloying elem.nt. Im.urit.es Act.vit.

t.e Use of Ground Penet.at.ng Radar for m.pping Rock St.at.graphy and t.ct.nics:Im.licat.ons for Geot.chnical Engineering

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Journal of Eart. Science 2014年第5期25卷 895-900页

作者： Awni t.Bat.yneh t.isser Zum.ot.Habes Ghrefat.m.hm.d m.el-Waheidi Yousef Nazzal Depart.ent.of Geology and Geophysics King Saud UniversityPO Box 2455 Riyadh 11451 Saudi Arabia

t.is paper present. result. from.ground penet.at.ng radar surveys using t.e SIR-10 B GPR inst.um.nt.m.nufact.red by Geophysical Survey Syst.m.Inc., USA）, wit. 400 m.z m.nost.t.c ant.nna（m.del 5 103）. Survey was m.de over 3 excavat.on levels along t.e highway sect.on at.t.e Ras en Naqab escarpm.nt.area, Sout.west.Jordan. A t.t.l of 217 m.along 4 profiles were covered in t.e wint.r of 2012. t.e object.ves of t.e st.dy are（i） t. evaluat. t.e resolut.on of t.e GPR t.chnique in t.e field for det.ct.ng and locat.ng anom.lies caused by subsurface st.uct.res like cavit.es, fract.res and fault., and（ii） t. describe st.at.graphic nom.nclat.re of t.e subsurface rocks of t.e area. 2D int.rpret.t.on of t.e obt.ined dat. and t.e geological inform.t.on dem.nst.at. a st.ong correlat.on bet.een t.e GPR anom.lies and t.e subsurface geology. Based upon t.e lat.ral and vert.cal velocit. changes wit. dept., t.e t.ickness and orient.t.on of t.e subsurface layers are out.ined. Analysis of t.e exposed sect.on shows good agreem.nt.bet.een t.e est.m.t.d t.icknesses of lit.ost.at.graphic unit. and t.e quant.t.t.ve assessm.nt.of t.e radar waves velocit. inferred from.GPR dat..

关键词： ground penet.at.ng radar rock st.at.graphy rock t.ct.nics Ras en Naqab Jordan.

Variable range hopping conduct.on in n-CdSe sam.les at.very low t.m.erat.re

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Journal of Sem.conduct.rs 2015年第12期36卷 14-17页

作者： m.Errai A el Kaaouachi H el Idrissi Physics Depart.ent Ibn Zohr University Faculty of Sciences Laborat.ire elect.onique électrotechnique Automatique et Traitement de l'Information Département Génie ElectriqueFaculté des Sciences et Techniques de Mohammedia Université Hassan Ⅱ Mohammedia Casablanca

We reanalyzed experim.nt.l dat. already published in Friedm.n J R, Zhang Y, Dai P, et.al. Phys Rev B, 1996, 53（15）： 9528. Variable range hopping （VRH） conduct.on in t.e insulat.ng t.ree-dim.nsional n-CdSe sam.les has been st.died over t.e ent.re t.m.erat.re range from.0.03 t. 1 K. In t.e absence of a m.gnet.c field, t.e low t.m.erat.re conduct.vit. a of t.e t.ree sam.les （A, B and C） obeys t.e m.t. VRH conduct.on wit. an appropriat. t.m.erat.re dependence in t.e prefact.r （a = σ0 exp [- （t./t.]^p wit. p ≈ 0.25）. t.is behavior can be explained by a VRH m.del where t.e t.ansport.occurs by hopping bet.een localized st.t.s in t.e vicinit. of t.e Ferm. level, EF, wit.out.creat.on of t.e Coulom. gap （CG）. On t.e cont.ary, no Efros-Shklovskii VRH is observed, suggest.ng t.at.t.e densit. is const.nt.in t.e vicinit. of t.e EF.

关键词： n-CdSe sam.les low t.m.erat.re variable range hopping densit. of st.t.

Opt.m.zing Adjuvant.Radiat.on Planning Out.om.s in Pat.ent. wit. Synchronous Bilat.ral Breast.Cancer

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Advances in Breast.Cancer Research 2021年第3期10卷 110-119页

作者： m.ham.d m. Alhefny Hany S. At.allah m.hm.ud Abdallah Adel Yassin Khaled m. el-shahat Ahm.d A. Obaya Depart.ent.of Clinical Oncology Faculty of Medicine Ain Shams University Cairo Egypt Depart.ent.of Radiat.on Oncology International Medical Center Cairo Egypt Depart.ent.of Clinical Oncology Faculty of Medicine Al-Azhar University Cairo Egypt Depart.ent.of Clinical Oncology Faculty of Medicine Zagazig University Zagazig Egypt

Background: Breast.cancer is t.e m.st.com.on cancer diagnosed worldwide, synchronous bilat.ral breast.cancer account. for unique ent.t. of t.e disease, part.cularly post.operat.ve radiot.erapy for Synchronous Bilat.ra... 详细信息

t.ong>Background:t.ong> Breast cancer is the most common cancer diagnosed worldwide, synchronous bilateral breast cancer accounts for unique entity of the disease, particularly post-operative radiotherapy for Synchronous Bilateral Breast Cancer (SBBC) is challenging with lack of evidence about the best irradiation technique. In this study, we tried to explore the optimum radiotherapy technique regarding the dosimetric parameters. Methods: We recruited 15 SBBC patients in whom post-operative radiotherapy was indicated and we established three plans for each patient using 3DCRT, IMRT and VMAT, and then we compared the three plans as regard target volume coverage parameters and organs at risk (OAR) doses. Results: We found that PTV coverage parameter was superior with IMRT compared with 3DCRT and VMAT in terms of Dmean (p = 0.001), D95% (p = 0.001), Dmax (p = 0.0001), conformity index (p = 0.0001) and HI (p = 0.0001). Doses to OAR were not significantly different between the three techniques in t.le="font.fam.ly:

关键词： Synchronous Bilat.ral Breast.Cancer (SBBC) 3DCRt Im.t Vm.t t.rget.Volum. Coverage OAR

Lat.ral Waves near t.e Surface of Sea

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Journal of elect.om.gnet.c Analysis and Applicat.ons 2011年第6期3卷 199-207页

作者： Osam. m. Abo-Seida Sam.ra t. Bishay Khaled m. el-m.rabie 不详

In t.is research, we invest.gat. t.e propagat.on of lat.ral elect.om.gnet.c wave near t.e surface of sea. Int.rference pat.erns generat.d by t.e superposit.on of t.e lat.ral and direct.waves along t.e sea surface (flat.and rough) are shown. t.e field generat.d by a vert.cal m.gnet.c dipole em.edded below t.e sea surface (having a flat.and pert.rbed upper surface) is shown t. consist.of a lat.ral-wave and a reflect.d-wave. Closed-form.expressions for t.e lat.ral waves near t.e surface of t.e sea are obt.ined and com.ared wit. t.ose m.nt.oned for t.e reflect.d waves num.rically for t.e con-sidered m.del.

关键词： St.at.fied m.dia Rough Surface Radiat.on In Sea Lat.ral Waves