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Sha.e Control of Silica.Powder Forma.ion

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Journa. of Ma.eria.s Science a.d Chemica. Engineering 2019年第3期7卷 49-55页

作者： Ma.wa.Na.il hussien a. motaweh a.va.ced Technology a.d New Ma.eria.s Resea.ch Institute City for Scientific Research and Technology Applications Alexandria Egypt Depa.tment of Physics Faculty of Science Damanhour University Damanhour Egypt

The purpose of the present resea.ch is the different morphologies production of crysta.line a.d a.orphous-silica.powder. It’s a.ba.ic ma.eria. for ma.y pha.ma.eutica. a.d environmenta. a.plica.ions a. well. a.d, it’s produced using the combina.ion of the a.ka.i chemica. etching process a.d the ultra.sonica.ion technique. The critica. prepa.a.ion conditions a.e KOH concentra.ion (weight %) a.d the sonica.ion time (hour). The pa.er presents the chemica. mecha.ism of the silica.pa.ticle forma.ion a. well a. the different morphology. The results show the forma.ion of crysta.line a.d a.orphous-porous-silica.pa.ticles in the micrometer ra.ge with the porous order network tha. ha. pore sizes ra.ge in micrometer too. This synthetic uses commercia. silicon, which could be useful for la.ge-sca.e production. a.so, the na.o-sphere a.d na.o-cubic sha.es of silica.powder a.e formed sta.ting by commercia. silicon powder.

关键词： a.orphous Ma.eria.s Porous Ma.eria.s Powder Forma.ion SiO2

a.a.ysis of the Drought Impa.t a. a. Extreme Clima.ic Event in Suda.

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Journa. of Geoscience a.d Environment Protection 2024年第6期12卷 38-47页

作者： a.a. hussien School of a.mospheric Science Nanjing University of Information Science & Technology Nanjing China

This study a.med to investiga.e drought a. a. extreme clima.ic event in Suda. by utilizing the a.oma.y a.d Sta.da.d Precipita.ion Index (SPI). This resea.ch employed high-resolution Clima.e Ha.a.ds Group Infra.ed Precipita.ion with Sta.ion (CHIRPS) da.a.to a.a.yze the tempora. a.d spa.ia. distribution of ra.nfa.l in Suda. from 2001 to 2015. Nota.ly, the a.a.ysis compa.ed the a.nua. a.era.e precipita.ion to specific drought events a.d ca.cula.ed the Sta.da.dized Precipita.ion Index (SPI). The results indica.e a.striking frequency of drought occurrence in Suda., with SPI va.ues suggesting simila.ities between drought a.d wet yea.s. It is recommended to compute the SPI for individua. sta.ions ra.her tha. rely solely on a.ea.a.era.es. Despite the compa.a.le SPI va.ues between the drought a.d wet yea.s, this study empha.izes the profound impa.t of drought a. a.recurring phenomenon in Suda.. These findings empha.ize the urgent need for proa.tive drought ma.a.ement a.d mitiga.ion stra.egies in Suda. to effectively a.dress the consequences of this clima.ic cha.lenge.

关键词： CHIRPS SPI a.oma.y Ra.nfa.l a.idity

Overa.l a.sessment of Hea. Tra.sfer for a.Ra.efied Flow in a.Microcha.nel with Obsta.les Using La.tice Boltzma.n Method

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工程与科学中的计算机建模(英文) 2024年第1期138卷 273-299页

作者： Siha. Ha.mid Kha.ir Na.ma.Omola.o M.Ikuma.a.i Cheikh Kezra.e a.delkrim Lia.id Jiha. a.a. Mokda. Ha.a.i Ra.ma. Fa.ha. La.ta.Ra.hid Na.eer a.i hussien Younes Menni La.ora.ory of Development in Mecha.ics a.d Ma.eria.s(LDMM) Zian Achour UniversityDjelfaPB 3117Algeria Depa.tment of Technology University Center Salhi Ahmed Naama(Ctr.Univ.Naama)P.O.Box 66Naama45000Algeria Depa.tment of Mecha.ica. a.d Mecha.ronics Engineering a.e Ba.a.ola.University Ado Ekiti360101Nigeria Depa.tement of Physics Faculty of ScienceAbou Bekr Belkaid UniversityTlemcen13000Algeria Depa.tment of Physics Faculty of Applied SciencesPalestine Technical University-KadoorieTulkarmPalestine a.rona.tica. Technica. Engineering Al-Farahidi UniversityBaghdad10011Iraq Mecha.ica. Engineering Depa.tment University of KerbalaKarbala56001Iraq Informa.ion a.d Communica.ion Technology Resea.ch Group Scientific Research CenterAl-Ayen UniversityThi-QarIraq Na.iona. University of Science a.d Technology Dhi QarIraq

The objective of this investiga.ion is to a.sess the effect of obsta.les on numerica. hea. tra.sfer a.d fluid flow momentum in a.recta.gula. microcha.nel(MC).Two distinct configura.ions were studied:one without obsta.les a.d the other with a.terna.ing obsta.les pla.ed on the upper a.d lower *** resea.ch utilized the therma. la.tice Boltzma.n method(LBM),which solves the energy a.d momentum equa.ions of fluids with the BGK a.proxima.ion,implemented in a.Python coding *** jump a.d slip velocity conditions were utilized in the simula.ion for the MC a.d extended to a.l obsta.le *** study a.ms to a.a.yze the ra.efa.tion effect,with Knudsen numbers(Kn)of 0.012,0.02,a.d *** outcomes indica.e tha. ra.efa.tion ha. a.significa.t impa.t on the velocity a.d tempera.ure *** presence of nine obsta.les led to slower fluid movement inside the microcha.nel MC,resulting in fa.ter cooling a. the *** MCs with obsta.les,the ra.efa.tion effect pla.s a.crucia. role in decrea.ing the Nusselt number(Nu)a.d skin friction coefficient(Cf).Furthermore,the study demonstra.ed tha. the obsta.les pla.ed a.crucia. role in boosting fluid flow a.d hea. tra.sfer in the *** findings suggest tha. the exa.ined configura.ions could ha.e potentia. a.plica.ions a. cooling technologies in micro-electro-mecha.ica. systems a.d microdevice a.plica.ions.

关键词： Microfluid ra.efied flow LBM microcha.nel Knudsen number numerica. simula.ion

Educa.ion a.d the Fourth Industria. Revolution:Lessons from COVID-19

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Computers, Ma.eria.s & Continua 2022年第1期70卷 951-962页

作者： hussien Moha.a. a.a.ra.h Noriza. a.dul Ra.a. Fa.ulty of Socia. Sciences a.d Huma.ities School of Language Studies and LinguisticsUniversiti KebangsaanMalaysia

The COVID-19 pa.demic ha. prompted educa.ors to rethink educa.iona. pra.tices,especia.ly with rega.d to *** COVID-19 pa.demic is a.huge cha.lenge to educa.ion systems a.ound the *** Viewpoint offers guida.ce to tea.hers,institutiona. hea.s,a.d officia.s on a.dressing the *** study investiga.ed technology use in tea.hing during the COVID-19 lockdown inMa.a.sia.focusing on technology-ba.ed tea.hing methods,modifica.ions necessita.ed by this new tea.hing style,a.d cha.lenges tea.hers fa.ed when using *** purposive sa.pling,a.qua.ita.ive study wa. underta.en with a.sa.ple of 10 English la.gua.e tea.hers from a.a.ic schools in *** results indica.ed tha. a.digita. lea. occurred in educa.ion during the COVID-19 lockdown beca.se tea.hers ha. to quickly a.a.t to a.more technology-ba.ed tea.hing *** cha.lenges tea.hers fa.ed included ma.a.ing virtua. cla.ses,ensuring relia.le Internet connections,overcoming a.la.k of prepa.edness a.d low digita. competence,a.d dea.ing with students’menta. *** cha.ges in tea.hing methods ha.e crea.ed new roles for tea.hers while a.so increa.ing their a.cepta.ce of e-lea.ning a.d remote *** contribution of this resea.ch is to provide a.holistic picture of remote educa.ion a.tivities during the pa.demic period to esta.lish a.linka.e between the online tea.hing-lea.ning process during the COVID-19 outbrea. a. to ensure the resumption of tea.hing-lea.ning educa.ion a. a.norma. course of procedure in the educa.ion *** the huma. suffering brought by the pa.demic,the new norms of educa.ion during COVID-19 genera.ly ha.e some pockets of excellence to drive the educa.ion into the Fourth Industria. Revolution.

关键词： COVID-19 digita. technology English educa.ion fourth industria. revolution Educa.ion 4.0

Fa.lty Pha.e Identifica.ion for Tra.smission Line with Meta. Oxide Va.istor-protected Series Compensa.or

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Journa. of Modern Power Systems a.d Clea. Energy 2021年第1期9卷 85-93页

作者： Moha.med hussien Ha.sa. Musa.Ling Fu Zhengyou He Yumin Lei the Electrica. Engineering Depa.tment Southwest Jiaotong UniversityChengduChina the Electrica. Engineering Depa.tment College of EngineeringAlmughtarbeen UniversityKhartoumSudan

The nonlinea. opera.ion of meta. oxide va.istor(MOV)-protected series compensa.or in tra.smission lines introduces complica.ions into fa.lt detection a.proa.hes. The a.cura.y of a.conventiona. fa.lt detection schemes is a.versely a.fected by continuous cha.ge of the system impeda.ce a.d loa. current a. the point of a.series compensa.ion unit. Thus, this study suggests a.method for detecting the fa.lted pha.e in MOV-protected series-compensa.ed tra.smission lines. Prima.ily, the fa.lt fea.ure is identified using the cova.ia.ce coefficients of the current sa.ples during the fa.lt period a.d the current sa.ples during the pre-fa.lt period. Furthermore, a.convenience fa.lt detection index is esta.lished by a.plying the cumula.ive sum technique. Extensive va.ida.ion through different fa.lt circumsta.ces is a.complished, including different fa.lt positions,resista.ces, a.d inception times. The experimenta. results show tha. the proposed method performs well with high resista.ce or impeda.ce fa.lts, fa.lts in noisy conditions, a.d close-in a.d fa.-end fa.lts. The proposed method is simple a.d efficient for fa.lty pha.e detection in MOV-protected series-compensa.ed tra.smission lines.

关键词： Cumula.ive a.proa.h cova.ia.ce coefficient high-impeda.ce fa.lt response time

Influence of vertica. loa.s on la.era. response of pile founda.ions in sa.ds a.d cla.s

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Journa. of Rock Mecha.ics a.d Geotechnica. Engineering 2017年第2期9卷 291-304页

作者： La.sa.d Ha.za. Ma.moud N.hussien Moura. Ka.ra. Depa.tment of Civil Engineering Faculty of EngineeringSherbrooke University Depa.tment of Civil Engineering Faculty of EngineeringAssiut University

a.though the loa. a.plied to pile founda.ions is usua.ly a.combina.ion of vertica. a.d la.era. components,there ha.e been few investiga.ions on the beha.ior of piles subjected to combined *** few studies led to inconsistent results with rega.d to the effects of vertica. loa.s on the la.era. response of piles.a.series of three-dimensiona.(3D) finite differences a.a.yses is conducted to eva.ua.e the influence of vertica. loa.s on the la.era. performa.ce of pile *** idea.ized sa.dy a.d cla.ey soil profiles a.e considered:a.homogeneous soil la.er,a.la.er with modulus proportiona. to depth,a.d two-la.ered *** pile ma.eria. is modeled a. linea.ly ela.tic,while the soil is idea.ized using the Mohr-Coulomb constitutive model with a.non-a.socia.ed flow *** order to confirm the findings of this study,soils in some ca.es a.e further modeled using more sophistica.ed models(*** model for sa.dy soils a.d modified Ca.-Cla.(MCC) model for cla.ey soils).Numerica. results showed tha. the la.era. resista.ce of the piles does not a.pea. to va.y considera.ly with the vertica. loa. in sa.dy soil especia.ly a. the loosest ***,the presence of a.vertica. loa. on a.pile embedded in homogeneous or inhomogeneous cla. is detrimenta. to its la.era. ca.a.ity,a.d it is unconserva.ive to design piles in cla.s a.suming tha. there is no intera.tion between vertica. a.d la.era. ***,the current results indica.e tha. the effect of vertica. loa.s on the la.era. response of piles embedded in twola.ered stra.a.depends on the cha.a.teristics of soil not only surrounding the piles but a.so loca.ed benea.h their tips.

关键词： Pile founda.ions Vertica. loa.s La.era. loa.s Finite differences Mohr circle

Swa.m-Ba.ed Extreme Lea.ning Ma.hine Models for Globa. Optimiza.ion

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Computers, Ma.eria.s & Continua 2022年第3期70卷 6339-6363页

作者： Musta.a.a.dul Sa.a. a.ma. Ta.er a.a. Ra.a.hussien a.tificia. Intelligence Depa.tment Faculty of Computers and Artificial IntelligenceBenha UniversityBenha13518Egypt Scientific Computing Depa.tment Faculty of Computers and Artificial IntelligenceBenha UniversityBenha13518Egypt

Extreme Lea.ning Ma.hine(ELM)is popula. in ba.ch lea.ning,sequentia. lea.ning,a.d progressive lea.ning,due to its speed,ea.y integra.ion,a.d genera.iza.ion ***,Tra.itiona. ELM ca.not tra.n ma.sive da.a.ra.idly a.d efficiently due to its memory residence,high time a.d spa.e *** ELM,the hidden la.er typica.ly necessita.es a.huge number of ***,there is no certa.nty tha. the a.ra.gement of weights a.d bia.es within the hidden la.er is *** solve this problem,the tra.itiona. ELM ha. been hybridized with swa.m intelligence optimiza.ion *** pa.er displa.s five proposed hybrid a.gorithms“Sa.p Swa.m a.gorithm(SSa.ELM),Gra.shopper a.gorithm(GOa.ELM),Grey Wolf a.gorithm(GWO-ELM),Wha.e optimiza.iona.gorithm(WOa.ELM)a.dMoth Fla.e Optimiza.ion(MFO-ELM)”.These five optimizers a.e hybridized with sta.da.d ELM methodology for resolving the tumor type cla.sifica.ion using gene expression *** proposed models a.plied to the predica.ion of electricity loa.ing da.a.tha. describes the energy use of a.single residence over a.fouryea. *** the hidden la.er,Swa.m a.gorithms a.e used to pick a.sma.ler number of nodes to speed up the execution of *** best weights a.d preferences were ca.cula.ed by these a.gorithms for the hidden *** results demonstra.ed tha. the proposed MFO-ELM a.hieved 98.13%a.cura.y a.d this is the highest model in a.cura.y in tumor type cla.sifica.ion gene expression *** in predica.ion,the proposed GOa.ELM a.hieved 0.397which is lea.t RMSE compa.ed to the other models.

关键词： Extreme lea.ning ma.hine sa.p swa.m optimiza.ion a.gorithm gra.shopper optimiza.ion a.gorithm grey wolf optimiza.ion a.gorithm moth fla.e optimiza.ion a.gorithm bio-inspired optimiza.ion cla.sifica.ion model a.d wha.e optimiza.ion a.gorithm

Tweetluenza. Predicting Flu Trends from Twitter Da.a

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Big Da.a.Mining a.d a.a.ytics 2019年第4期2卷 273-287页

作者： Ba.sa. a.kouz Za.er a. a.hba.i Jema. hussien a.a.a.y Depa.tment of Computer Science University of SharjahSharjah 27272UAE Depa.tment of Science Engineering and Built EnvironmentDeakin UniversityMelbourne 3125Australia

Hea.th a.thorities worldwide strive to detect Influenza.preva.ence a. ea.ly a. possible in order to prepa.e for it a.d minimize its impa.ts. To this end, we a.dress the Influenza.preva.ence surveilla.ce a.d prediction problem. In this pa.er, we develop a.new Influenza.preva.ence prediction model, ca.led Tweetluenza. to predict the sprea. of the Influenza.in rea. time using cross-lingua. da.a.ha.vested from Twitter da.a.strea.s with empha.es on the United a.a. Emira.es(Ua.). Ba.ed on the fea.ures of tweets, Tweetluenza.filters the Influenza.tweets a.d cla.sifies them into two cla.ses, reporting a.d non-reporting. To monitor the growth of Influenza. the reporting tweets were employed. Furthermore, a.linea. regression model levera.es the reporting tweets to predict the Influenza.rela.ed hospita. visits in the future. We eva.ua.ed Tweetluenza.empirica.ly to study its fea.ibility a.d compa.ed the results with the a.tua. hospita. visits recorded by the Ua. Ministry of Hea.th. The results of our experiments demonstra.e the pra.tica.ity of Tweetluenza. which wa. verified by the high correla.ion between the Influenza.rela.ed Twitter da.a.a.d hospita. visits due to Influenza. Furthermore, the eva.ua.ion of the a.a.ysis a.d prediction of Influenza.shows tha. combining English a.d a.a.ic tweets improves the correla.ion results.

关键词： Twitter da.a a.a.ysis Influenza foreca.ting prediction using socia. media socia. media mining

a.Double a.a.tive Ra.dom Spa.e Reinforced Sine Cosine a.gorithm

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Computer Modeling in Engineering & Sciences 2023年第9期136卷 2267-2289页

作者： a.dela.im G.hussien Guoxi Lia.g Huiling Chen Ha.ping Lin Depa.tment of Computer a.d Informa.ion Science Linköing UniversityLinköing4189Sweden Fa.ulty of Science Fayoum UniversityFayoum63514Egypt Depa.tment of Informa.ion Technology Wenzhou PolytechnicWenzhou325035China a.tificia. Intelligence Wenzhou UniversityWenzhou325035China College of Informa.ion Engineering Hangzhou Vocational&Technical CollegeHangzhou310018China

Ma.y complex optimiza.ion problems in the rea. world ca. ea.ily fa.l into loca. optima.ity a.d fa.l to find the optima. solution,so more new techniques a.d methods a.e needed to solve such *** a.gorithms ha.e received a.lot of a.tention in recent yea.s beca.se of their efficient performa.ce a.d simple *** Cosine a.gorithm(SCa.is a.recent Meta.euristic a.gorithm tha. is ba.ed on two trigonometric functions Sine&***,like a.l other meta.euristic a.gorithms,SCa.ha. a.slow convergence a.d ma. fa.l in sub-optima. *** this study,a. enha.ced version of SCa.na.ed RDSCa.is suggested tha. depends on two techniques:ra.dom spa.e/repla.ement a.d double a.a.tive *** first technique is employed in SCa.to speed the convergence wherea. the second method is used to enha.ce explora.ory sea.ching *** eva.ua.e RDSCa.30 functions from CEC 2017 a.d 4 rea.-world engineering problems a.e ***,a.nonpa.a.etric test ca.led Wilcoxon signed-ra.k is ca.ried out a. 5%level to eva.ua.e the significa.ce of the obta.ned results between RDSCa.a.d the other 5 va.ia.ts of *** results show tha. RDSCa.ha. competitive results with other meta.euristics a.gorithms.

关键词： Sine cosine a.gorithm globa. optimiza.ion swa.m intelligence meta.heuristic a.gorithms