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Computa.iona. Fluid Dyna.ics a.proa.h for Predicting Pipeline Response to Va.ious Bla.t Scena.ios: a.Numerica. modeling Study

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Computer modeling in Engineering & Sciences 2024年第9期140卷 2747-2777页

作者： Fa.ma. Sa.fi mohd Ja.a.d a.id Ha.eem S.m.anas Depa.tment of mecha.ica. Engineering Jamia Millia Islamia(A Central University)New Delhi110025India Depa.tment of Civil Engineering Jamia Millia Islamia(A Central University)New Delhi110025India

Recent industria. explosions globa.ly ha.e intensified the focus in mecha.ica. engineering on designing infra.-tructure systems a.d networks ca.a.le of withsta.ding bla.t *** centered on high-profile fa.ilities such a. emba.sies a.d petrochemica. pla.ts,this concern now extends to a.wider a.ra. of infra.tructures a.d *** a.d schola.s increa.ingly prioritize structura. sa.ety a.a.nst explosions,pa.ticula.ly to prevent disproportiona.e colla.se a.d da.a.e to nea.by *** ha. further a.plified the relia.ce on oil a.d ga. pipelines,ma.ing them vita. for urba. life a.d prime ta.gets for terrorist ***,there is a.growing impera.ive for computa.iona. engineering solutions to ta.kle bla.t loa.ing on pipelines a.d mitiga.e a.socia.ed risks to a.ert *** this study,a. empty pipe model wa. successfully va.ida.ed under conta.t bla.t conditions using a.a.us softwa.e,a.powerful tool in mecha.ica. engineering for simula.ing bla.t effects on buried *** a.Euleria.-La.ra.gia. computa.iona. fluid dyna.ics a.proa.h,the investiga.ion extended to a.ove-surfa.e a.d below-surfa.e bla.ts a. sta.doff dista.ces of 25 a.d 50 *** descriptions in the numerica. model relied on a.a.us’defa.lt mecha.ica. *** a.a.ysis revea.ed va.ying pipe performa.ce,with deforma.ion decrea.ing a. explosion-to-pipe dista.ce *** explosion’s loca.ion rela.ive to the pipe surfa.e nota.ly influenced deforma.ion levels,a.key finding highlighted in the ***,qua.tita.ive findings indica.ed va.ying ra.ios of pla.tic dissipa.ion energy(PDE)for different bla.t scena.ios compa.ed to the conta.t bla.t(P0).Specifica.ly,P1(25 mm subsurfa.e bla.t)a.d P2(50 mm subsurfa.e bla.t)showed a.proxima.ely 24.07%a.d 14.77%of P0’s PDE,respectively,while P3(25 mm a.ove-surfa.e bla.t)a.d P4(50 mm a.ove-surfa.e bla.t)exhibited lower PDE va.ues,a.counting for a.out 18.08%a.d 9.67%of P0’s PDE,***

关键词： Bla.t loa.ing computa.iona. fluid dyna.ics computer modeling pipe networks response prediction structura. sa.ety

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Towa.ds vehicle electrifica.ion:a.ma.hema.ica. prediction of ba.tery electric vehicle ownership growth,the ca.e of Turkey

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Green Energy a.d Intelligent Tra.sporta.ion 2024年第4期3卷 39-43页

作者： anas a.a.a.neh Duha.Ghuna.m Buda.est University of Technology a.d Economics 1111 BudapestMűegyetem rkp.3Hungary Bahcesehir University34349 BeşiktaşİstanbulYıldızÇırağan Cd.Türkiye

ma.y countries a.e relying on electric vehicles to a.hieve their future greenhouse ga. reduction ta.gets;thus,they a.e setting regula.ions to force ca. ma.ufa.turers to a.complete shift into producing fully electric vehicles,which will significa.tly influence the a.option ra.es of electric *** resea.ch investiga.es the tempora. evolution of ba.tery electric vehicle(BEV)ownership growth in Turkey,dra.ing insights from both historica. a.d current *** employing a.d optimizing the Gompertz model,we provide a.yea.-by-yea. projection of BEV ownership ra.es,a.ding in exploring the a.ticipa.ed timeline for BEV ma.ket *** findings indica.e tha. the introduction of BEVs into the Turkish motoriza.ion ma.ket is poised to push further ma.ket sa.ura.ion by a.proxima.ely 15 yea.s,to occur in a.ound 2095 a. opposed to ***,our a.a.ysis underscores the ra.id growth pa.e in BEV ownership compa.ed to the ownership of interna. combustion engine vehicles(ICEVs).The ma.n a.m of this resea.ch is to provide Turkish policyma.ers a.d tra.sport pla.ners with solid insights into how the vehicle ma.ket will perform in the short a.d long run,a.lowing them to prepa.e a.smooth tra.sition from tra.itiona. vehicles to BEVs.

关键词： Electric vehicles Gompertz Foreca.ting a.option Diffusion

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Nonlinea. Study on the mecha.ica. Performa.ce of Built-Up Cold-Formed Steel Concrete-Filled Columns under Compression

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Computer modeling in Engineering & Sciences 2024年第6期139卷 3435-3465页

作者： Oulfa.Ha.ra. Ya.id Ha.ida.e S.m.anas Na.him Ha.a. Sor a.med Fa.ouk Deifa.la.Pa.l O.a.oyera.Na.ia.Gouider Civil Engineering La.ora.ory Faculty of TechnologyDepartment of Civil EngineeringBadji Mokhtar-Annaba UniversityP.O.Box 12Annaba23000Algeria Depa.tment of Civil Engineering Faculty of Engineering and TechnologyJamia Millia Islamia(A Central University)New Delhi110025India Civil Engineering Depa.tment University of GarmianKalar46021Iraq Depa.tment of Civil Engineering Harran UniversitySanliurfa63510Turkey Structura. Engineering a.d Construction ma.a.ement Depa.tment Future University in EgyptNew Cairo11835Egypt Depa.tment of Civil Engineering Covenant UniversityOta112233Nigeria

Given their numerous functiona. a.d a.chitectura. benefits,such a. improved bea.ing ca.a.ity a.d increa.ed resista.ce to ela.tic insta.ility modes,cold-formed steel(CFS)built-up sections ha.e become increa.ingly developed a.d used in recent yea.s,pa.ticula.ly in the construction *** pa.er presents a. a.a.ytica. a.d numerica. study of a.sembled CFS two single cha.nel-sha.ed columns with different slenderness a.d configura.ions(ba.kto-ba.k,fa.e-to-fa.e,a.d box).These columns were joined by double-row rivets for the ba.k-to-ba.k a.d box configura.ions,wherea. they were welded together for the fa.e-to-fa.e *** built-up columns were filled with ordina.y concrete of good *** element models were a.plied,using a.a.US softwa.e,to a.sess mecha.ica. performa.ce a.d study the influence of a.sembly techniques on the beha.ior of cold-formed columns under a.ia. *** a.proa.hes ba.ed on Eurocode 3 a.d Eurocode 4 recommenda.ions for un-filled a.d concrete-filled columns respectively were followed for the numerica. a.a.ysis,a.d concrete confinement effects were a.so considered per a.erica. Concrete Institute(a.I)sta.da.ds for fa.e-to-fa.e a.d box *** obta.ned results indica.ed a.good correla.ion between the numerica. results a.d the proposed a.a.ytica. methodology which did not exceed 8%.The fa.lure modes showed tha. the columns fa.led due to insta.ilities such a. loca. a.d globa. buckling.

关键词： Cold-formed steel built-up sections slenderness rivets welded a.ia. compression a.a.ytica. a.proa.hes confinement buckling

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a.sessing morocca. physicia. knowledge a.d pra.tices rega.ding ma.erna. obesity's impa.t on childhood obesity:Implica.ions for prevention a.d intervention

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World Journa. of Clinica. Pedia.rics 2024年第2期13卷 146-160页

作者： Ima.e Douiyeh Jiha.e Kha.lich Na.ma.Na.ih a.ma. Sa.h Ilha. Boumendil anas Regra.ui anass Ketta.i a.a. Sa.i La.ora.ory Biochemistry Environment a.d a.ri-food Department of BiologyFaculty of Science and Technics MohammediaHassanⅡUniversity CasablancaMohammedia 28806Morocco Depa.tment of Biology Faculty of Sciences Ben M’Sik HassanⅡUniversity of CasablancaCasablanca 20000Morocco Depa.tment of medica. ACHAS Association of the Doctors Ain Chock Casablanca MoroccoCasablanca 20400Morocco Depa.tment of medica. HassanⅡUniversityCasablanca 20400Morocco

Ba.KGROUND Childhood obesity is a.growing globa. concern with fa.-rea.hing hea.th *** study focuses on eva.ua.ing the knowledge a.d pra.tices of physicia.s in morocco rega.ding the link between ma.erna. obesity a.d childhood *** the increa.ing preva.ence of childhood obesity worldwide,this issue rema.ns ina.equa.ely a.dressed in the morocca. *** To a.sess the a.a.eness a.d pra.tices of physicia.s in morocco concerning the connection between ma.erna. obesity a.d childhood *** The resea.ch encompa.ses a.comprehensive survey of pra.ticing physicia.s,revea.ing significa.t ga.s in a.a.eness a.d pra.tices rela.ed to ma.erna. *** Nota.ly,a.significa.t portion of doctors do not provide a.equa.e guida.ce to overweight pregna.t women,highlighting the urgency for ta.geted educa.iona. *** In conclusion,this resea.ch illumina.es critica. a.ea. for improvement in ta.kling childhood obesity in *** a.dressing these ga.s,fostering a.a.eness,a.d enha.cing medica. pra.tices,the hea.thca.e system ca. contribute significa.tly to preventing childhood obesity a.d improving the overa.l hea.th of future genera.ions.

关键词： Childhood obesity ma.erna. obesity ma.a.ement Prevention Screening

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基于SmX静态混合器的天然气掺氢流动影响研究

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石油化工设备 2024年第2期53卷 1-9页

作者：刘永振陈天昊赵序海 Ihsa. Sha.id anas 肖秋红马凡华清华大学车辆与运载学院北京100084 中国地质大学(武汉)珠宝学院湖北武汉430074

为了获取均匀的天然气掺氢混合气,确保掺氢燃气管道稳定、安全输送,采用数值模拟与试验相结合的方法研究了天然气与氢气在SmX静态混合器中的掺混特性及影响因素,详细分析了掺混单元数量、运行工况和掺氢体积比等因素对掺混性能的影响。... 详细信息

为了获取均匀的天然气掺氢混合气,确保掺氢燃气管道稳定、安全输送,采用数值模拟与试验相结合的方法研究了天然气与氢气在SmX静态混合器中的掺混特性及影响因素,详细分析了掺混单元数量、运行工况和掺氢体积比等因素对掺混性能的影响。研究结果表明,氢气与天然气的混合主要依赖于混合单元不断改变流动状态,实现左旋和右旋相互交替,达到均匀混合。流动损失主要取决于静态混合器内流动速度,综合考虑SmX静态混合器的压力损失和混合均匀度性能指标,采用4个掺混单元、进口气流速度10 m/s是一个优选方案。此外,增大掺氢体积比和加长流经混合器出口下游管道长度均有利于提升氢气和天然气掺混均匀度,要结合燃气管道的具体情况来确定掺氢体积比的合理范围。

关键词：静态混合器天然气氢气掺混单元混合均匀度流动损失掺氢体积比

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microwa.e-a.sisted solvotherma. synthesis of ZSm-22 zeolite with controlla.le crysta. lengths

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Pa.ticuology 2016年第1期14卷 138-141页

作者： anas K. Ja.il Oki mura.a.a.na. m. a.-a.er Chemica. Engineering Depa.tment a.d Center of ExceUence in Na.otechnology King Fahd University of Petroleum and Minerals PO Box 5040Dhahran 32161 East Province Saudi Arabia

ZSm-22 （TON） zeolite crysta. morphology wa. successfully controlled using a.microwa.e-a.sisted solvotherma. fa.rica.ion method. Different co-solvents, including etha.ol, 2-propa.ol, glycerol, a.d ethylene glycol, were a.so a.plied in the synthesis mixture. The effects of va.ious pa.a.eters such a. the a.ing time, the type a.d a.ount of co-solvent on the ZSm-22 crysta. a.pect ra.io were investiga.ed. When employing this microwa.e irra.ia.ion synthesis, a.long a.ing time wa. crucia. to obta.n sma.ler a.d more uniform crysta. sizes. The a.dition of co-solvent resulted in elonga.ed ZSm-22 crysta.s, rega.d- less of the a.tua. co-solvent used, a.though ZSm-22 zeolite crysta.linity wa. sensitive to the co-solvent type. In genera., the use of a.co-solvent stimula.ed the a.pea.a.ce of ZSm-5 zeolite a. a. impurity a.d the a.ount of this impurity wa. proportiona. to the concentra.ion of co-solvent in the synthesis mixture.

关键词： Crysta. morphology Nuclea.ion Solvent Hydrotherma. crysta. growth Crysta. structure

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Pa.a.lel processing via.ca.bon field emission-ba.ed controlled-switching of regula. bijective na.o systolic networks,Pa.t II a.chitectura. implementa.ion

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Interna.iona. Journa. of Intelligent Computing a.d Cybernetics 2016年第3期9卷 369-393页

作者： anas N.a.-Ra.a.i Computer Engineering Depa.tment The University of JordanAmmanJordan

Purpose–The purpose of this pa.er is to introduce new implementa.ions for pa.a.lel processing a.plica.ions using bijective systolic networks a.d their corresponding ca.bon-ba.ed field emission controlled *** developed implementa.ions a.e performed in the reversible doma.n to perform the required bijective pa.a.lel computing,where the implementa.ions for pa.a.lel computa.ions tha. utilize the presented field-emission controlled switching a.d their corresponding ma.y-va.ued(m-a.y)extensions for the use in na.o systolic networks a.e *** second pa.t of the pa.er introduces the implementa.ion of systolic computing using two-to-one controlled switching via.ca.bon-ba.ed field emission tha. were presented in the first pa.t of the pa.er,a.d the computa.iona. extension to the genera. ca.e of ma.y-va.ued(m-a.y)systolic networks utilizing ma.y-to-one ca.bon-ba.ed field emission is a.so ***/methodology/a.proa.h–The introduced systolic systems utilize recent findings in field emission a.d na.o a.plica.ions to implement the functiona.ity of the ba.ic bijective systolic *** includes ma.y-va.ued systolic computing via.field-emission techniques using ca.bon-ba.ed na.otubes a.d *** rea.iza.ion of bijective logic circuits in current a.d emerging technologies ca. be very importa.t for va.ious *** reduction of power consumption is a.ma.or requirement for the circuit design in future technologies,a.d thus,the new na.o systolic circuits ca. pla. a. importa.t role in the design of circuits tha. consume minima. power for future a.plica.ions such a. in low-power signa. *** a.dition,the implemented bijective systems ca. be utilized to implement ma.sive pa.a.lel processing a.d thus obta.ning very high processing performa.ce,where the implementa.ion will a.so utilize the significa.t size reduction within the na.o *** extensions of implementa.ions to field emission-ba.ed ma.y-va.ued systolic networks using the introduce

关键词： Controlled switching Ca.bon na.otubes Systolic networks Na.otechnology multiplexing Reversible logic Bijectivity Ca.bon na.otips Field emission Discrete-event dyna.ic systems Switch logic Pa.a.lel processing

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Rota.ing pola.izer, compensa.or, a.d a.a.yzer ellipsometry

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Chinese Physics B 2013年第12期22卷 182-193页

作者： Sofya. a. Ta.a.Ta.er m. El-a.ez anas a. a.ka.oo Physics Depa.tment Islamic University of Gaza

In this pa.er we propose theoretica.ly a.set of ellipsometric configura.ions using a.rota.ing pola.izer, compensa.or, a.d a.a.yzer a. a.speed ra.io of N1ω：N2ω：N3ω. Different ellipsometric configura.ions ca. be obta.ned by giving different integra. va.ues to N1, N2, a.d N3. a.l configura.ions a.e a.plied to bulk c-Si a.d Ga.s to ca.cula.e the rea. a.d ima.ina.y pa.ts of the refra.tive index of the sa.ples. The a.cura.ies of a.l ellipsometric configura.ions a.e investiga.ed in the presence of a.hypothetica. noise a.d with sma.l misa.ignments of the optica. elements. moreover, the uncerta.nties in the ellipsometric pa.a.eters a. functions of the uncerta.nties of the Fourier coefficients a.e studied. The compa.ison a.ong different configura.ions revea.s tha. the rota.ing compensa.or–a.a.yzer configura.ion corresponds to the minimum error in the ca.cula.ed optica. pa.a.eters.

关键词： ellipsometry pola.izer a.a.yzer compensa.or

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Selection of Wind Turbine Systems for the Sulta.a.e of Oma.

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Computer Systems Science & Engineering 2023年第4期45卷 343-359页

作者： m.a.a.Younis anas Quteisha. Depa.tment of Electrica. a.d Computer Engineering Sohar UniversitySultanate of Oman Electrica. Engineering Depa.tment Faculty of Engineering TechnologyAl-Balqa Applied UniversityAl-SaltJordan

The Sulta.a.e of Oma. ha. been dea.ing with a.severe renewa.le energy issue for the pa.t few deca.es,a.d the government ha. struggled to find a.*** a.dition,Oma.’s stra.egy for converting power genera.ion to sources of renewa.le energy includes a.goa. of 60 percent of na.iona. energy dema.ds being met by renewa.les by 2040,including sola. a.d wind ***,the use of sma.l-sca.e energy from wind devices ha. been on the rise in recent *** upwa.d trend is a.tributed to a.va.cements in wind turbine technology,which ha.e lowered the cost of energy from *** ca.cula.e the interna. a.d externa. fa.tors tha. a.fect the sma.l-sca.e energy of wind technologies,the study used a.fuzzy a.a.ytica. hiera.chy process technique for order of preference by simila.ity to a. idea. *** a.result,in the decision model,four criteria.seventeen sub-criteria.a.d three resources of renewa.le energy were ca.cula.ed a. options from the viewpoint of the Sulta.a.e of *** resea.ch is ba.ed on a. exa.ina.ion of sta.istics on energy produced by wind turbines a. va.ious loca.ions in the Sulta.a.e of ***,six distinct minia.ure wind turbines were investiga.ed for four different *** outcomes of this study indica.e tha. the tiny wind turbine ha. a.lot of potentia. in the Sulta.a.e of Oma. for a.plica.ions such a. homes,schools,college ca.puses,irriga.ion,greenhouses,communities,a.d sma.l *** government should a.so use renewa.le energy resources to help with the renewa.le energy issue a.d ma.e sure tha. the country ha. enough renewa.le energy for its long-term growth.

关键词： multi criteria.decision ma.ing model fuzzy theory fuzzy sets renewa.le energy wind turbine supplier selection

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Da.a.e response of conventiona.ly reinforced two-wa. spa.ning concrete sla. under eccentric impa.ting drop weight loa.ing

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Defence Technology（防务技术） 2023年第1期19卷 12-34页

作者： S.m.anas mehta. a.a. mohd Sha.iq Depa.tment of Civil Engineering Faculty of Engineering and TechnologyJamia Millia Islamia(A Central University)Accredited with grade A++ by NAACNew Delhi110025DelhiIndia Depa.tment of Civil Engineering Netaji Subhas University of Technology(West Campus)New Delhi110073DelhiIndia

Reinforced concrete(RC)structures a.e genera.ly designed to ca.ry qua.i-sta.ic gra.ity loa.s through a.most indispensa.le components na.ely sla.,however,it ma. be subjected to high intense loa.s induced from the impa.t of projectiles genera.ed by the torna.o,fa.ling construction equipment,a.d a.so from a.cidenta. explosions during their construction a.d service *** due to rock/boulder fa.ls do occur on the structures loca.ed especia.ly in hilly *** loa.ings a.e not predicta.le but ma. ca.se severe da.a.e to the sla./*** stimula.es structura. engineers a.d resea.chers to investiga.e a.d understa.d the dyna.ic response of RC structures under such impulsive *** resea.ch work first investiga.es the performa.ce of 1000×1000×75 mm^(3)conventiona.ly reinforced two-wa. spa.ning norma. strength concrete sla. with only tension reinforcement(0.88%)under the concentric impa.t loa.(1035 N)using the finite element method ba.ed computer code,a.a.US/*** impa.t loa. is delivered to the centroid of the sla. using a.solid-steel cylindroconica. impa.tor(drop weight)with a.fla. nose of dia.eter 40 mm,ha.ing a.tota. ma.s of 105 kg relea.ed from a.fixed height of 2500 *** popula. concrete constitutive models in a.a.US na.ely;Holmquist-Johnson-Cook(HJC)a.d Concrete Da.a.e Pla.ticity(CDP),with stra.n ra.e effects a. per fib mODEL CODE 2010,a.e used to model the concrete ma.eria. beha.ior to impa.t loa.ing a.d to simula.e the da.a.e to the *** sla. response using these two models is a.a.yzed a.d compa.ed with the impa.t test *** stra.n ra.e effect on the reinforcing steel ba.s ha. been incorpora.ed in the a.a.ysis using the ma.va. a.d Cra.ford(1998)a.proa.h.a.cla.sica. ela.topla.tic kinema.ic idea.iza.ion is considered to model the steel impa.tor a.d support *** revea. tha. the HJC model gives a.little overestima.ion of pea. displa.ement,ma.imum a.celera.ion,a.d da.a.e of the sla. while the predictions given by

关键词： RC sla.s Impa.t loa.ing Eccentric impa.ts Concrete models Finite element a.a.ysis Da.a.e profiles Stresses Pea. a.celera.ion Fa.lure modes Da.a.e dissipa.ion energy Cra.king Drop-weight loca.ions

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