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Synthesis, spectra., optica. a.d a.ti-infla.ma.ory a.tivity of complexes derived from 2-a.inobenzohydra.ide with some ra.e ea.ths

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Journa. of Ra.e Ea.ths 2015年第7期33卷 758-764页

作者： Na.ser Moha.med Hosny el Sa.ed a.el Morsy Yousery E.sherif Chemistry Depa.tment Faculty of Science Port-Said University Clinica. Pha.ma.ology Depa.tment Faculty of Medicine Mansoura University Pha.ma.ology a.d Thera.eutics Depa.tment Qassim College of Medicine Qassim University Depa.tment of Chemistry Faculty of Science and Arts Taibah University

Three new meta. complexes derived from Er（Ⅲ）, Dy（Ⅲ） a.d Zr（Ⅳ） with 2-a.inobenzohydra.ide （a.H） were synthesized a.d cha.a.terized by elementa. a.a.yses, IR, ^1H-NMR, ES-MS a.d tra.smission electron microscopy （TEM）. The morphology a.d the pa.ticle size were determined by TEM. The results showed tha. the liga.d a.ted a. neutra. bi-denta.e coordina.ing to the meta. ions through the ca.bonyl oxygen a.d a.idic a.ino nitrogen. The a.oma.ic a.ine group rema.ned inert towa.ds coordina.ion. The optica. ba.d ga. wa. mea.ured a.d found to be 3.3, 3.5 a.d 4.3 eV for Er（Ⅲ）, Dy（Ⅲ） a.d Zr（Ⅳ）, respectively. The optica. ba.d ga. va.ues indica.ed a.semi-conducting na.ure of the investiga.ed complexes. The a.ti-infla.ma.ory a.d a.a.gesic a.tivities of the tested compounds were determined a.d compa.ed with sta.da.d meloxica..

关键词： Er(Ⅲ) Dy(Ⅲ) Zr(Ⅳ) meta. complexes optica. ba.d ga. ra.e ea.ths

a.isotropic a.ignments of hiera.chica. Li2SiO3/TiO2@na.o-C a.ode//LiMnPO4@na.o-C ca.hode a.chitectures for full-cell lithium-ion ba.tery

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Na.iona. Science Review 2020年第5期7卷 863-880页

作者： Hesha. Kha.ifa.sherif a. el-sa.ty a.dulla. Reda.Moha.ed a. Shena.hen a.a. I.Eid Resea.ch Center for Functiona. Ma.eria.s National Institute for Materials Science Depa.tment of Petrochemica. Egyptian Petroleum Research Institute Composite La. Advanced Materials Division Central Metallurgical R&D Institute

We report on low-cost fa.rica.ion a.d high-energy density of full-cell lithium-ion ba.tery （LIB） ***-hiera.chica. electrode a.chitectures of Li2SiO3/TiO2@na.o-ca.bon a.ode （***@na.o-C） a.d high-volta.e olivine LiMnPO4@na.o-ca.bon ca.hode （LMPO@na.o-C） a.e designed for ha.f-a.d full-system LIB-CR2032 coin cell *** the ba.is of prima.y a.chitecture-power-driven LIB geometrics,the structure keys including three-dimensiona. （3D） modeling superhiera.chy,multisca.e micro/na.o a.chitectures a.d a.isotropic surfa.e heterogeneity a.fect the buildup design of a.ode/ca.hode LIB *** hiera.chica. electrode surfa.e topologies ena.le continuous in-/out-flow ra.es a.d fa.t tra.sport pa.hwa.s of Li+-ions during cha.ge/discha.ge *** sta.ked la.er configura.ions of pouch LIB-types lea. to excellent cha.ge/discha.ge ra.e,a.d energy density of237.6 Wh *** the most promising LIB-configura.ions,the high specific energy density of hiera.chica. pouch ba.tery systems ma. improve energy stora.e for long-driving ra.ge of electric ***,the a.isotropic a.ignments of hiera.chica. electrode a.chitectures in the la.ge-sca.e LIBs provide proof of excellent ca.a.ity stora.e a.d outsta.ding dura.ility a.d *** full-system LIB-CR2032 coin cell models ma.nta.n high specific ca.a.ity of～89.8%within a.long-term life period of2000 cycles,a.d a.era.e Coulombic efficiency of99.8%a. 1C ra.e for future configura.ion of LIB ma.ufa.turing a.d commercia.iza.ion cha.lenges.

关键词： lithium-ion ba.teries micro/na.o a.chitectures LiMnPO4@na.o-ca.bon ca.hode Li2SiO3/TiO2@na.o-ca.bon a.ode LIB-CR2032 coin cell models

Optica. mesoscopic membra.e sensor la.outs for wa.erfree a.d blood-free toxica.ts

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Na.o Resea.ch 2015年第10期8卷 3150-3163页

作者： sherif a. el-sa.ty Moha.ed Kha.ry Moha.ed a. Shena.hen Ema. elshehy Wojciech Wa.kocki Ma.a.u Sa.a. Na.iona.InstituteforMa.eria.sScience(NIMS) 1-2-1SengenTsukuba-shiIbaraki305-0047Japan Gra.ua.eSchoolforSciencea.dEngineering WasedaUniversity3-4-1OkuboShinjuku-kuTokyo169-8555Japan CenterforResea.chinIsotopesa.dEnvironmenta.Dyna.ics TsukubaUniversity1-1-1TennodaiTsukubaIbaraki305-8572Japan

a.va.ces in fa.rica.ion of mesoscopic membra.e sensors with unique structures a.d morphologies inside a.odic a.umina.membra.e （a.M） na.ocha.nels ha.e led to the development of va.ious methods for detecting, visua.izing, a.sorbing, filtering, a.d recovering ultra.tra.e concentra.ions of toxic meta. ions, such a. Hg^2＋ a.d Pb^2＋, in wa.er a.d blood. These often ＂one-pot＂ screening methods offer a.va.ta.es over conventiona. methods in tha. they do not require sophistica.ed instruments or la.orious sa.ple prepa.a.ion. In the present study, we fa.rica.ed two mesoscopic membra.e sensors for na.ed-eye detection, recognition, filtra.ion, a.d recovery of Hg^2＋ a.d Pb^2＋ in biologica. a.d environmenta. sa.ples. These sensors were cha.a.terized by the dense immobiliza.ion of orga.ic colora.ts on the mesopore surfa.es of silica.na.otubes tha. were constructed using the na.ocha.nels of a. a.M a. a.sca.fold. We confirmed tha. the na.otubes were oriented a.ong the long a.is of the a.M na.ocha.nels, open a. both ends, a.d completely a.d uniformly filled with orga.ic colora.ts; a.so, the dense immobiliza.ion of the orga.ic colora.ts did not a.fect the speed of ion-to-liga.d binding events. We used simple, desk-top, flow-through a.sa.s to a.sess the suita.ility of the developed membra.e sensors for detection, remova., a.d filtra.ion of Hg^2＋ a.d Pb^2＋ with respect to recycla.ility a.d continuous monitoring. Remova. of the ta.get ions from biologica. fluids wa. a.sessed by mea.s of flow cytometric a.a.ysis. Our results demonstra.e the potentia. of our membra.e sensors to be used for preventing the hea.th risks a.socia.ed with exposure to toxic meta. ions in the environment a.d blood.

关键词： hea.th risks optica. sensor mesoscopic na.otubes toxins blood

Thermochemica. a.pects of a.tiva.ed a.monium Perchlora.es with Superior Therma. Sta.ility,Decomposition Entha.py,Propa.a.ion Index,a.d Decomposition Kinetic Pa.a.eters

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Journa. of Therma. Science 2021年第6期30卷 2196-2201页

作者： sherif elba.uney M.Yehia.SHUKRI Isma.l sherif Fa.a. a.MED Sa.eh GHa.IEB S.el-Sa.ya. Hea. of Na.otechnology Resea.ch Center Military Technical College(MTC)Cairo 11646Egypt School of Chemica. Engineering Military Technical College(MTC)Cairo 11646Egypt Science a.d Technology Center of Excellence Cairo 11646Egypt Drug Ra.ia.ion Resea.ch Depa.tment National Center for Radiation Research and Technology(NCRRT)Egyptian Atomic Energy Authority(EAEA)Cairo 11646Egypt

a.monium perchlora.e(a.)includes oxidizing a.d reducing elements on the sa.e *** ca. a.t a. a. efficient oxidizer a.d mono-propella.t a. *** this study,a. experienced crysta.logra.hic pha.e cha.ge from orthorhombic centrosymmetric to non-centrosymmetric under controlled isotherma. hea. *** diffra.togra.s confirmed this crysta.logra.hic pha.e *** therma. beha.iour of a.tiva.ed a. ha. been investiga.ed using *** a. demonstra.ed high chemica. sta.ility with a. increa.e in endothermic pha.e tra.sition entha.py by 170%.The entha.py of the subsequent two ma.n exothermic decomposition rea.tions wa. increa.ed by 250%.Wherea. a. demonstra.ed tota. decomposition entha.py of 733 J/g,a.tiva.ed a. showed 2614 J/*** a. ca. secure self-susta.ned response a. a.high *** index(combustion entha.py/ignition tempera.ure)wa. employed to a.sess self-susta.ned rea.tion *** a. demonstra.ed high propa.a.ion index of 8.7 compa.ed with 2.5 for un-a.tiva.ed *** decomposition kinetic pa.a.eters ha. investiga.ed using Kissinger a.d Ka. *** a. showed a. increa.e in a.tiva.ion energy by 89%using the Kissinger method;kinetic pa.a.eters using the Ka. method were in good a.reement with the Kissinger *** ca. ha.e concluded tha. a. with novel kinetic decomposition pa.a.eters for enha.ced sa.ety stora.e a.d high combustion cha.a.teristics ha. evolved.

关键词： solid propella.ts oxidizers therma. beha.ior Kinetic pa.a.eters a.tiva.ion energy

Hyperspectra. ima.ing a.d remote tra.e detection of cis-1,3,4,6-tetra.itroocta.ydroimida.o-[4,5 d]imida.ole(BCHMX)compa.ed with tra.itiona. explosives using la.er induced fluorescence

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Defence Technology（防务技术） 2021年第5期17卷 1609-1616页

作者： Ha.y S.a.oub a.hra. F.el-sherif a.med elbeih Depa.tment of Physics Faculty of ScienceCairo UniversityEgypt La.er Photonics Resea.ch Center Engineering Physics DepartmentMilitary Technical CollegeCairoEgypt Explosives Depa.tment Military Technical CollegeKobry ElkobbahCairoEgypt

cis-1,3,4,6-Tetra.itroocta.ydroimida.o-[4,5 d]imida.ole(BCHMX)is a. a.va.ced energetic compound tha. expected to sprea. worldwide in the nea. ***,no a.proved remote detection methods were reported in current litera.ure for this ma.eria.,we performed hyper-spectra. ima.ing a.d la.er induced fluorescence(LIF)to a.BCHMX sa.ple under low la.er fluence for determining the optimum la.er wa.elength used in a.y future BCHMX-LIF ba.ed remote detection *** this purpose,a. experimenta. setup consisted of a.sun spectrum la.p a.d hyper-spectra. ca.era.wa. built to illumina.e a.d ima.e white powder sa.ples of BCHMX in compa.ison with the tra.itiona. explosives,HMX(1,3,5,7-tetra.itro-1,3,5,7-tetra.za.ycloocta.e),RDX(1,3,5-trinitro-1,3,5-tria.a.yclohexa.e),PETN(2,2-Bis[(nitroxy)methyl]propa.e-1,3-diyldinitra.e).The ima.ing revea.s strong BCHMX sa.ple a.sorption contra.t a.ong other sa.ples a. wa.elength ra.ging from 400 to 410 *** light source wa. repla.ed by a.405 nm la.er diode illumina.or,a.strong BCHMX sa.ple LIF a. the spectra. ra.ge from 425 to 700 nm wa. observed under low la.er fluence condition of 0.1 mJ/cm^(2).Fina.ly,we demonstra.ed successfully the a.ility of the 405 nm LIF a.d the hyperspectra. ima.ing technique to detect finger print tra.es of BCHMX on white cellulose fa.ric from a.dista.ce of 15 m a.d a.detection limit of 1 mg/cm^(2).

关键词： Hyperspectra. ima.ing Remote tra.e detection BCHMX La.er induced fluorescence

Glyca.ed Hemoglobin Hba.c:Permittivity Experimenta. a.plica.ions with Some Ma.hema.ica. Concepts,Tempera.ure a.d Frequency Va.ia.ions

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Journa. of Renewa.le Ma.eria.s 2022年第9期10卷 2335-2354页

作者： Solima. a.da.la.sherif Ka.dil Wa.eed el-Shirbeeny Fa.ma.Ba.a.ri Depa.tment of Physics Faculty of ScienceKing Abdulaziz UniversityJeddahSaudi Arabia Depa.tment of Ma.eria.s Science Institute of Graduate Studies and ResearchAlexandria UniversityAlexandriaEgypt Depa.tment of Physics Faculty of ScienceJeddah UniversityJeddahSaudi Arabia

Dia.etes disorder turns smoothly to be a.globa. epidemic disorder a.d the glyca.ed hemoglobin(Hba.c)sta.ts to be a. efficient ma.ker of *** dielectric spectroscopy on different huma. norma.-a.d dia.etic-blood sa.ples is used to cha.a.terize a.d to estima.e the Hba.c concentra.ion.“dc-”a.d a.-mea.urement of the complex conductivity in the tempera.ure ra.ge from 280 K up to 320 K,a.d in the frequency ra.ge from one Hz up to 32 MHz ha.e been *** therma. a.tiva.ion energy,ΔEσ,of dc-electric conductivity lies in the ra.ge 95 meVa. a.tiva.ion energy,ΔEτ,of RBCs rela.a.ion time is a.outΔEτ=140 *** experimenta. da.a.ha.e been modeled by a.physica.-model a.d good fittings ha.e been found between ca.cula.ed a.d experimenta. *** effective number of cha.ges,nG,T,is estima.ed a.ter Cole a.d Cole *** ha. found tha. nG,T increa.es with both tempera.ure,T,a.d with the glyca.ion ra.e *** increa.e ma. shed some light on a. effective a.d possible wa. to trea.(a.d to detect)dia.etes disorders via.elimina.ing the excess electric cha.ges produced by glyca.ion *** present work sheds the light on the possible combina.ion of focused ultra.ound with ma.netic resona.ce ima.ing to study the dielectric-therma. va.ia.ions of glyca.ed-RBCs,which ca. lea. to very precise a.d non-inva.ive monitoring of glyca.ion concentra.ion in vivo a.d in vitro via.ma.netic resona.ce-thermometry.

关键词： Glyca.ed-hemoglobin ra.e therma. cha.a.teriza.ion red blood cells RBCs rela.a.ion of RBCs dielectric consta.t ma.hema.ica. model

Spot urina.y sodium for a.sessing dieta.y sodium restriction in cirrhotic a.cites

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World Journa. of Ga.troenterology 2009年第29期15卷 3631-3635页

作者： Moha.med a.delha.id el-Bokl Ba.a. eldeen Senousy Kha.ed Za.a.ia.el-Ka.mouty Ina. el-Khedr Moha.med sherif Monier Moha.med sherif Sa.ek Sha.a.a.Ha.sa. Sha.a.y Depa.tment of Ga.troenterology a.d Hepa.ology Ain Shams University school of Medicine Abbassia 11566 Cairo Egypt

a.M： To eva.ua.e the a.cura.y of spot urina.y Na.K a.d Na.crea.inine （Cr） ra.ios a. a. a.terna.ive to 24-h urina.y sodium in monitoring dieta.y complia.ce in pa.ients with liver cirrhosis a.d a.cites trea.ed with diuretics. METHODS： The study wa. ca.ried on 40 pa.ients with liver cirrhosis a.d a.cites trea.ed with diuretic thera.y. Pa.ients were divided into two groups a.cording to 24-h urina.y sodium. We mea.ured spot urine Na.K ra.io, Na. Cr ra.io a.d 24-h urina.y sodium. Student＇s t test wa. used to compa.e the interva. va.ia.les a.d x^2 test to compa.e the nomina. va.ia.les between the two groups. Receiver opera.or cha.a.teristic curve wa. used to identify the best cutoff point for Na.K a.d Na.Cr ra.io. RESULTS： The best cutoff point for Na.K ra.io wa. 2.5 （P 〈 0.001） a.d a.ea.under the curve （a.C） wa. 0.9, a.d for Na.Cr ra.io, the best cutoff point wa. 35 （P 〈 0.001） a.d a.C wa. 0.885. Na.K ra.io showed higher sensitivity a.d a.cura.y compa.ed to Na.Cr ra.io （87.5% a.d 87% for Na.K ra.io; 81% a.d 85% for Na.Cr ra.io, respectively）. CONCLUSION： Spot urine Na.K ra.io ha. a.equa.e a.cura.y for a.sessment of dieta.y sodium restriction compa.ed with 24-h urina.y sodium in pa.ients with liver cirrhosis a.d a.cites.

关键词： a.cites Liver cirrhosis Porta. hypertension Urina.y sodium

QSM-IDM -a.novel qua.ra.ure spa.ia. modula.ion ba.ed on interlea.ing division multiplexing for multiple a.tenna.system

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Digita. Communica.ions a.d Networks 2019年第3期5卷 183-188页

作者： sherif K. el Dya.ti Esa. a.a. Ha.ra. Ha.ia.el-Henna.y a.n Sha.s Cairo Egypt elec and Comm. Dept Technical Research Centre Cairo Egypt Fa.ulty of Engineering Ain Shams Cairo Egypt

Qua.ra.ure Spa.ia. Modula.ion (QSM) is a.high spectra. efficiency Multiple-Input Multiple Output (MIMO) technique used to improve the spectra. efficiency of wireless communica.ion systems. The ma.n concept of QSM is to extend the spa.ia. constella.ion of the conventiona. Spa.ia. Modula.ion (SM) in both the in-pha.e a.d qua.ra.ure components of the da.a.symbol. In this pa.er, beca.se QSM-ba.ed on Interlea.dng Division Multiplexing (IDM) ha. not been introduced in the litera.ure a. a.multiple a.tenna.system, we introduced a.novel scheme, ca.led QSM system ba.ed on Interlea.ing Division Multiplexing (QSM-IDM). The a.tenna.sets a.e a.so a.plied to a.sprea.er, before being used to a.sign a. a.tenna.number for informa.ion tra.smission. a.a.ysis a.d simula.ions for a.fla. fa.ing cha.nel show tha. the proposed QSM-IDM method significa.tly outperforms the origina. QSM system with the sa.e da.a.ra.e, while ma.nta.ning a.rela.ively a.cepta.le complexity. The obta.ned simula.ion results show tha. the conducted a.a.ysis yields significa.t improvements for the a.cura.y of the proposed scheme, with sa.isfa.tory complexity.

关键词： Interlea.er Division Multiplexing (IDM) Multiple Input Multiple Output (MIMO) Spa.ia. Modula.ion (SM) Qua.ra.ure Spa.ia. Modula.ion (QSM)

Course Eva.ua.ion Ba.ed on Deep Lea.ning a.d SSa.Hyperpa.a.eters Optimiza.ion

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Computers, Ma.eria.s & Continua 2022年第4期71卷 941-959页

作者： a.a. a.el-Demerda.h sherif E.Hussein John FW Za.i Depa.tment of Computer a.d Systems Faculty of EngineeringMansoura UniversityMansoura35516Egypt

Sentiment a.a.ysis a.tra.ts the a.tention of Egyptia. Decisionma.ers in the educa.ion *** offers a.via.le method to a.sess educa.ion qua.ity services ba.ed on the students’feedba.k a. well a. tha. provides a. understa.ding of their *** ma.hine lea.ning techniques offer a.toma.ed stra.egies to process big da.a.derived from socia. media.a.d other digita. cha.nels,this resea.ch uses a.da.a.et for tweets’sentiments to a.sess a.few ma.hine lea.ning *** da.a.et preprocessing to remove symbols,necessa.y stemming a.d lemma.iza.ion is performed for fea.ures *** is followed by severa. ma.hine lea.ning techniques a.d a.proposed Long Short-Term Memory(LSTM)cla.sifier optimized by the Sa.p Swa.m a.gorithm(SSa.a.d mea.ured the corresponding ***,the va.idity a.d a.cura.y of commonly used cla.sifiers,such a. Support Vector Ma.hine,Logistic Regression Cla.sifier,a.d Na.ve Ba.es cla.sifier,were ***,LSTM ba.ed on the SSa.cla.sifica.ion model wa. compa.ed with Support Vector Ma.hine(SVM),Logistic Regression(LR),a.d Na.ve Ba.es(NB).Fina.ly,a. LSTM ba.ed SSa.a.hieved the highest a.cura.y,it wa. a.plied to predict the sentiments of students’feedba.k a.d eva.ua.e their a.socia.ion with the course outcome eva.ua.ions for educa.ion qua.ity purposes.

关键词： Sentiment a.a.ysis course eva.ua.ion deep lea.ning Bi-LSTM opinion mining students feedba.k na.ura. la.gua.e processing ma.hine lea.ning tweets a.a.ysis Ssa