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Interna.iona. Journa. of Orga.ic Chemistry 2013年第3期3卷 198-205页

作者： Ya.ser K. a.delmonem farag a. el-essawy Sa.da.a. a.ou el-Enein Mona.M. el-Sheikh-a.er Depa.tment of Chemistry Faculty of Science Menoufia University Shebin El-Koam Egypt

Synthesis of some 1,3,4-thia., oxa.dia.ol a.d 1,2,4 tria.ole incorpora.ed the biologica.ly a.tive a.d the pyra.olopyri-dine deriva.ive. Molecula. modeling a.d docking of the a.tive compounds into a.R1C3 complexed with its bound inhibitor indometha.in using Molsoft ICM 3.4-8C progra. were performed in order to predict the a.finity a.d orienta.ion of the synthesized compounds a. the a.tive site.

关键词： Pyra.olopyridine Biologica.ly a.tive Molecula. Modeling a.d Inhibitor

Efficient energy ha.vesting from PV Pa.el with reinforced hydrophilic na.o-ma.eria.s for eco-buildings

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Energy a.d Built Environment 2024年第3期5卷 393-403页

作者： a.med elnoza.y Heba.a.d-elba.y farag K.a.o-elyousr Depa.tment of electrica. Engineering Faculty of EngineeringAssiut UniversityAssiut 71516Egypt

The ma.n ta.get of this resea.ch is to a.low sola. PV to contribute economica.ly to a. on-grid energy-efficient building where the dust a.cumula.ion is a.significa.t ***-clea.ing coa.ings such a. hydrophobic or hy-drophilic ma.eria.s ha.e recently been introduced to reduce dust deposition on building-integra.ed PV(BIPV)*** hydrophilic Na.o-coa.ed ma.eria. is exa.ined a. a.solution to decrea.e the impa.t of the dust on the BIPV pa.els a.d ha.vest more sola. *** impa.tia. compa.ison of the BIPV pa.els performa.ce under na.u-ra. dust conditions,ma.ua. clea.ing,a.d hydrophilic na.oma.eria. coa.ing is *** a. exha.stive a.d qua.ita.ive experimenta. a.a.ysis,the a.ti-reflection a.d a.ti-sta.ic properties of the utilized Na.o-coa.ed ma.eria. a.e *** experimenta. results show tha. the hydrophilic Na.o-coa.ed ma.eria. significa.tly improves the ga.hered ma.imum output power by 18%compa.ed to the ma.ua.ly wiped *** ca.cula.ed efficiencies of the Na.o-coa.ed,ma.ua. clea.ing,a.d dusty pa.els a.e 11%,9%,a.d 6%,respectively,which highlights the futureproofing of the Na.o-coa.ed sola. *** to the dusty pa.els,the ecologica. a.d economica. results show tha. the BIPV ca.bon emissions a.e desira.ly dropped by 11%while using Na.o-coa.ed PV pa.els a.d the pa.ba.k period is reduced to 3.9 yea.s,which is a.proxima.ely 12.8%fa.ter.

关键词： Hydrophilic Self-clea.ing BIPV pa.els Na.o-coa.ing Techno-economic

Ena.ling Efficient Da.a.Tra.smission in Wireless Sensor Networks-Ba.ed IoT a.plica.ion

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Computers, Ma.eria.s & Continua 2024年第6期79卷 4197-4218页

作者： Ibra.eem a.-Hejri farag a.zedin Sulta. a.muha.ma.i Na.em Firdous Syed Informa.ion a.d Computer Science Depa.tment King Fahd University of Petroleum andMineralsDhahran31261Saudi Arabia Center for Cyber Resilience a.d Trust(CREST) Deakin UniversityGeelong3220Australia

The use of the Internet of Things(IoT)is expa.ding a. a. unprecedented sca.e in ma.y critica. a.plica.ions due to the a.ility to interconnect a.d utilize a.plethora.of wide ra.ge of *** critica. infra.tructure doma.ns like oil a.d ga. supply,intelligent tra.sporta.ion,power grids,a.d a.tonomous a.riculture,it is essentia. to gua.a.tee the confidentia.ity,integrity,a.d a.thenticity of da.a.collected a.d ***,the limited resources coupled with the heterogeneity of IoT devices ma.e it inefficient or sometimes infea.ible to a.hieve secure da.a.tra.smission using tra.itiona. cryptogra.hic ***,designing a.lightweight secure da.a.tra.smission scheme is becoming *** this a.ticle,we propose lightweight secure da.a.tra.smission(LSDT)scheme for IoT *** consists of three pha.es a.d utilizes a. effective combina.ion of symmetric keys a.d the elliptic Curve Menezes-Qu-Va.stone a.ymmetric key a.reement *** design the simula.ion environment a.d experiments to eva.ua.e the performa.ce of the LSDT scheme in terms of communica.ion a.d computa.ion *** a.d performa.ce a.a.ysis indica.es tha. the LSDT scheme is secure,suita.le for IoT a.plica.ions,a.d performs better in compa.ison to other rela.ed security schemes.

关键词： IoT lightweight computa.ion complexity communica.ion overhea. cybersecurity threa.s threa. prevention secure da.a.tra.smission Wireless Sensor Networks(WSNs) elliptic curve cryptogra.hy

Sta.ility a.a.ysis of a.time-dela.ed Va. der Pol–Helmholtz–Duffing oscilla.or in fra.ta. spa.e with a.non-perturba.ive a.proa.h

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Communica.ions in Theoretica. Physics 2024年第4期76卷 22-31页

作者： Yusry O el-Dib Depa.tment of Ma.hema.ics Faculty of EducationAin Shams UniversityRoxyCairoEgypt

The time-dela.ed fra.ta. Va. der Pol–Helmholtz–Duffing(VPHD)oscilla.or is the subject of this pa.er,which explores its mecha.isms a.d highlights its sta.ility *** time-dela.ed technologies a.e currently ga.nering significa.t a.tention,the focus of this resea.ch rema.ns crucia.ly releva.t.a.non-perturba.ive a.proa.h is employed to refine a.d set the sta.e for the system under *** innova.ive methodologies introduced yield a. equiva.ent linea. differentia. equa.ion,mirroring the inherent nonlinea.ities of the ***,the incorpora.ion of qua.ra.ic nonlinea.ity into the frequency formula.represents a.cutting-edge *** a.a.ytica. solution's va.idity is corrobora.ed using a.numerica. *** conditions a.e a.certa.ned through the residua. Ga.erkin ***,it is observed tha. the dela. pa.a.eter,in the context of the fra.ta. system,reverses its sta.ilizing influence,impa.ting both the a.plitude of dela.ed velocity a.d the *** a.a.ytica. solution's precision is underscored by its close a.ignment with numerica. ***,the study revea.s tha. fra.ta. cha.a.teristics emula.e da.ping *** its a.plica.ility a.ross diverse nonlinea. dyna.ica. systems,this non-perturba.ive a.proa.h emerges a. a.promising a.enue for future resea.ch.

关键词： Va. der Pol-Helmholtz-Duffing oscilla.or fra.ta. spa.e time-dela. non-perturba.ive a.proa.h sta.ility a.a.ysis el-Dib's frequency formula

Compa.ison between seismic a.a.ysis of twisting a.d regula. 52-story towers considering soil-structure intera.tion

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Ea.thqua.e Engineering a.d Engineering Vibra.ion 2024年第3期23卷 663-675页

作者： Moha.ed Na.uib a.ouelsa.d Moha.med Sha.ba. Sa.a. el Ba.a.a.y Moha.ed E.el Ma.a.y Structura. Engineering Depa.tment Faculty of EngineeringMansura UniversityMansoura 35511Egypt Fa.ulty of Engineering Delta University for Science and TechnologyGamasa 35712Egypt

a.dyna.ic a.a.ysis of both twisting a.d regula. towers is ca.ried out to determine the results of considering soil-structure intera.tion(SSI)on high-rise *** a.dition,the difference between the seismic performa.ce of using twisting towers over regula. ones is *** twisting tower is a.simula.ion of the Evolution Tower(Moscow).The towers’skeletons consist of RC elements a.d rest on a.reinforced concrete piled-ra.t *** soil model is considered a. multi-la.ered with the sa.e soil properties a. the zone chosen for the a.a.ysis(New Ma.soura.City,Egypt).The only difference between both towers is their sha.e in *** whole system is modelled a.d a.a.yzed in a.single step a. one full 3D model,which is known a. the direct a.proa.h in *** a.a.yses a.e ca.ried out using finite-element softwa.e(Mida. GTS NX).Dyna.ic output responses due to three records of seismic loa.s a.e proposed a.d presented in some *** on the results,it is concluded tha. SSI ha. a.considera.le effect on the dyna.ic response of ta.l buildings ma.nly beca.se of the founda.ion flexibility,a. it lea.s to lengthening the vibra.ion period,increa.ing the story drift a.d the ba.e shea. for both ca.es.

关键词： soil-structure intera.tion seismic a.a.ysis twisting towers ba.e shea. story drift finite element method Mida. GTS NX

Insights into the hydrogen evolution rea.tion in va.a.ium redox flow ba.teries:a.synchrotron ra.ia.ion ba.ed X-ra. ima.ing study

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Journa. of Energy Chemistry 2024年第4期91卷 132-144页

作者： Kerstin Köble a.exey Ershov Ka.gjun Dua. Monja.Schilling a.exa.der Ra.pf a.gelica.Cecilia.Tomášfaragó Ma.cus Zuber Tilo Ba.mba.h Roswitha.Zeis Helmholtz Institute Ulm Karlsruhe Institute of Technology89081 UlmGermany La.ora.ory for a.plica.ions of Synchrotron Ra.ia.ion Karlsruhe Institute of Technology76131 KarlsruheGermany Institute for Photon Science a.d Synchrotron Ra.ia.ion Karlsruhe Institute of Technology76344 Eggenstein-LeopoldshafenGermany Depa.tment of electrica. Electronicsand Communication EngineeringFaculty of EngineeringFriedrich-Alexander-Universität Erlangen-Nürnberg(FAU)91058 ErlangenGermany Depa.tment of Mecha.ica. a.d Industria. Engineering University of TorontoToronto M5S 3G8OntarioCanada

The pa.a.itic hydrogen evolution rea.tion(HER)in the nega.ive ha.f-cell of va.a.ium redox flow ba.teries(VRFBs)ca.ses severe efficiency ***,a.deeper understa.ding of this process a.d the a.compa.ying bubble forma.ion is *** benchma.king study loca.ly a.a.yzes the bubble distribution in thick,porous electrodes for the first time using deep lea.ning-ba.ed ima.e segmenta.ion of synchrotron X-ra. *** la.ge three-dimensiona. da.a.set wa. processed precisely in less tha. one minute while minimizing huma. errors a.d pointing out a.ea. of increa.ed HER a.tivity in *** study systema.ica.ly va.ies the electrode potentia. a.d ma.eria.,concluding tha. more nega.ive electrode potentia.s of-200 m V *** hydrogen electrode(RHE)a.d lower ca.se more substa.tia. bubble forma.ion,resulting in bubble fra.tions of a.ound 15%–20%in ca.bon felt ***,the bubble fra.tions sta. only a.ound 2%in a. electrode combining ca.bon felt a.d ca.bon *** detected a.ea. with high HER a.tivity,such a. the border subregion with more tha. 30%bubble fra.tion in ca.bon felt electrodes,the cutting edges,a.d preferentia. spots in the electrode bulk,a.e potentia.-independent a.d suggest tha. la.ger electrodes with a.higher bulk-to-border ra.io might reduce HER-rela.ed performa.ce *** described combina.ion of electrochemica. mea.urements,loca. X-ra. microtomogra.hy,a.-ba.ed segmenta.ion,a.d 3D morphometric a.a.ysis is a.powerful a.d novel a.proa.h for loca. bubble a.a.ysis in three-dimensiona. porous electrodes,providing a. essentia. toolkit for a.broa. community working on bubble-genera.ing electrochemica. systems.

关键词： Va.a.ium redox flow ba.tery Synchrotron X-ra. ima.ing Tomogra.hy Hydrogen evolution rea.tion Ga. bubbles Deep lea.ning

Gender-Ba.ed a.a.ysis of User Rea.tions to Fa.ebook Posts

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Big Da.a.Mining a.d a.a.ytics 2024年第1期7卷 75-86页

作者： Ya.sine el Moudene Ja.fa. Idra.s Rida.el a.a.si a.derra.im Sa.our Ma.hema.ica. Engineering a.d Computer Science La.ora.ory Faculty of SciencesIbn Zohr UniversityAgadir 8706Morocco Depa.tment of Computer Science Ma.hema.ica.−High School of Technology Ibn Zohr UniversityAgadir 8706Morocco

Online Socia. Networks(OSNs)a.e ba.ed on the sha.ing of different types of informa.ion a.d on va.ious intera.tions(comments,rea.tions,a.d sha.ing).One of these importa.t a.tions is the emotiona. rea.tion to the *** diversity of rea.tion types a.a.la.le on Fa.ebook(na.ely FB)ena.les users to express their feelings,a.d its tra.ea.ility crea.es a.d enriches the users’emotiona. identity in the virtua. *** pa.er is ba.ed on the a.a.ysis of 119875012 FB rea.tions(Like,Love,Ha.a.Wow,Sa.,a.gry,Tha.kful,a.d Pride)ma.e a. multiple levels(publica.ions,comments,a.d sub-comments)to study a.d cla.sify the users’emotiona. beha.ior,visua.ize the distribution of different types of rea.tions,a.d a.a.yze the gender impa.t on emotion *** of these ca. be a.hieved by a.dressing these resea.ch questions:who rea.ts the most?Which emotion is the most expressed?

关键词： profiling knowledge extra.tion da.a.mining emotion mining socia. media da.a.cra.ling Fa.ebook rea.tions gender

Existence results a.d beha.ior a.a.ysis for nonlinea. a.e-dependent popula.ion dyna.ics problems with conforma.le fra.tiona. opera.or

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Interna.iona. Journa. of Bioma.hema.ics 2024年第5期17卷 229-256页

作者： Hiba.el a.ra.ui M'ha.ed el Oma.i a.i el Mfa.el Kha.id Hila. La.ora.ory of a.plied Ma.hema.ics Scientific Computing Sulta. Moula. Slima.e University BP 523 Beni MellalMorocco

In this pa.er,we investiga.e the existence of solutions a.d a.a.yze the la.ge-time beha.ior for Gurtin-Ma.ca.y popula.ion model involving conforma.le fra.tiona. *** a.prelimina.y step,we construct a.generic structure of the solution a.socia.ed with our proposed model by utilizing some ba.ic properties a.d tools of conforma.le fra.tiona. *** esta.lish the existence of a.unique solution of the given model with the given initia. *** la.t,by using the upper a.d lower solutions for the cha.a.teristic equa.ion,we define the upper a.d lower bounda.ies for the obta.ned solution a.d describe the la.ge-time beha.ior of the tota. popula.ion.

关键词： a.e-dependent popula.ion conforma.le fra.tiona. opera.or upper a.d lower bounda.y of the solution dyna.ics of popula.ions

Nonlinea. wa.e dispersion in monoa.omic cha.ns with lumped a.d distributed ma.ses:discrete a.d continuum models

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a.plied Ma.hema.ics a.d Mecha.ics(English Edition) 2024年第4期45卷 633-648页

作者： E.GHa.a.LOO S.el-BORGI School of Mecha.ica. Engineering Shiraz UniversityShiraz 71963-16548Iran Mecha.ica. Engineering Progra. Texas A&M University at QatarDoha 23874Qatar

The ma.n objective of this pa.er is to investiga.e the influence of inertia.of nonlinea. springs on the dispersion beha.ior of discrete monoa.omic cha.ns with lumped a.d distributed *** developed model ca. represent the wa.e propa.a.ion problem in a.non-homogeneous ma.eria. consisting of hea.y inclusions embedded in a.*** inclusions a.e idea.ized by lumped ma.ses,a.d the ma.rix between a.ja.ent inclusions is modeled by a.nonlinea. spring with distributed ***,the model is ca.a.le of depicting the wa.e propa.a.ion in bi-ma.eria. ba.s,wherein the first ma.eria. is represented by a.rigid pa.ticle a.d the second one is represented by a.nonlinea. spring with distributed *** discrete model of the nonlinea. monoa.omic cha.n with lumped a.d distributed ma.ses is first considered,a.d a.closed-form expression of the dispersion rela.ion is obta.ned by the second-order Lindstedt-Poinca.e method(LPM).Next,a.continuum model for the nonlinea. monoa.omic cha.n is derived directly from its discrete la.tice model by a.suita.le continua.iza.ion *** subsequent use of the second-order method of multiple sca.es(MMS)fa.ilita.es the deriva.ion of the corresponding nonlinea. dispersion rela.ion in a.closed *** novelties of the present study consist of(i)considering the inertia.of nonlinea. springs on the dispersion beha.ior of the discrete ma.s-spring cha.ns;(ii)developing the second-order LPM for the wa.e propa.a.ion in the discrete cha.ns;a.d(iii)deriving a.continuum model for the nonlinea. monoa.omic cha.ns with lumped a.d distributed ***,a.pa.a.etric study is conducted to exa.ine the effects of the design pa.a.eters a.d the distributed spring ma.s on the nonlinea. dispersion rela.ions a.d pha.e velocities obta.ned from both the discrete a.d continuum *** pa.a.eters include the ra.io of the spring ma.s to the lumped ma.s,the nonlinea. stiffness coefficient of the spring,a.d the wa.e a.plitude.

关键词： nonlinea. ma.s-spring cha.n discrete model continuum model LindstedtPoinca.e method(LPM) method of multiple sca.es(MMS) dispersion pha.e velocity

Modeling environmenta. sensitivity a.d risk a.sessment of Pa.s in sediments a.ong two ma.ine coa.ta. a.ea. in Egypt

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Petroleum Resea.ch 2024年第1期9卷 125-142页

作者： Muha.ma. a.el-a.fy Na.iona. Institute of Ocea.ogra.hy a.d Fisheries NIOFCairoEgypt

Modeling the environmenta. sensitivity index(ESI)is vita. in the pla.ning a.d ma.a.ement processes,especia.ly a.ong the coa.ta. *** ma.n objectives of the study were to define the ma.n sources of polycyclic a.oma.ic hydroca.bons(Pa.s),esta.lish a. ESI model,a.d mea.ure the risk of Pa.s on huma.s a.d the environment using va.ious *** methodology of the resea.ch involved a.a.yzing Pa.s a.cording to the EPa.550 methodology in sediments of the coa.tline in two importa.t coa.tline a.ea. in Egypt,na.ely the Gulf of Suez a.d the Mediterra.ea. Sea.modeling the sensitivity of Pa.s using a.cGIS 10.5 by integra.ing different physica.,biologica.,a.d la.d use/cover fa.tors,identifying the sources,a.d performing a.risk *** sediment sa.ples were collected from ea.h *** produced sensitivity ma. could expla.n the highly sensitive a.ea. a.ong the Mediterra.ea. Sea.a.d Gulf of Suez coa.tlines(especia.ly a.ea. tha. were nea. dra.ns'outlets,industria. sites,a.d sea.ports).The highest mea. Pa. concentra.ions were a.ena.hthylene a.d Fluorine in the Mediterra.ea. Sea.a.d Suez Gulf,***'s obvious tha. the individua. Pa. concentra.ions were within the ERL,ERM,a.d Pel threshold limits,indica.ing no a.verse biologica. *** ra.ios of Ba./Ba.+Chy,Flu/Flu+Py,a.d a.t/a.t+Phe ga.e a. indica.ion tha. most Pa. sources were petrogenic(63.64%)a.d others(36.36%)were from petroleum *** principle component a.a.ysis(PCa.indica.ed a.diverse correla.ion a.ong the isomer ra.ios a.d LU/LC *** ca.cinogenic risk va.ues were in the very low ca.egory(a.d *** most significa.t contributors to ca.cinogenicity were IP a.d BkFlu in the Mediterra.ea. Sea.a.d Suez Gulf,*** sources of ca.bon in sea.a.er,especia.ly with clima.ic cha.ge,ma. impa.t the a.ua.ic environment a.d ha.e impa.ts on orga.isms a.d cora. *** it is highly recommended to keep shorelines a.d sea.a.er free of oil spilla.e a.t

关键词： Polycyclic a.oma.ic hydroca.bons(Pa.s) Modeling Sensitivity Gulf of Suez a.d Mediterra.ea. sea