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Photolum.nescence a.d therm.lum.nescence properties of SnO_2 na.opa.ticles em.edded in Li_2O-K_2O-B_2O_3 with Cu-doping

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Chinese Optics Letters 2013年第9期11卷 1-4页

作者： Ha.da. a.oud H. Wa.ira. R. Hussin Sa.d Sa.er m. a. saeed Depa.tm.nt of Physics Faculty of ScienceUniversiti Teknologi Malaysia Ba.hda. College of Econom.c Sciences University

Cu-doped bora.e gla.s co-doped with SnO2na.opa.ticles is fa.rica.ed by m.lt *** structure a.d m.rphology of the sa.0}les a.e exa.0}ned by X-ra. diffra.tion a.d field em.ssion sca.ning electron ***-conversion enha.cem.nt is observed in the photolum.nescence（PL） a.d therm.lum.nescence（TL） intensities of the *** em.ssion spectra.a.e identified in the blue a.d green regions,a.d a.fourfold increa.e in em.ssion intensity m.y be observed in the presence of em.edded *** glow curve is recorded a. 215 C,a.d fourfold increa.es in TL intensity a.e obta.ned by a.dition of 0.1 m.l% SnO2na.opa.ticles to the *** TL responses of the sa.0}les a.e observed in the energy ra.ge of 15-100 *** energy levels grea.er tha.;.1 m.V,however,fla. responses a.e *** a.tiva.ion energy a.d frequency fa.tor of the second-order kinetic rea.tion a.e ca.cula.ed by the pea. sha.e m.thod.

关键词： SnO Photolum.nescence a.d therm.lum.nescence properties of SnO2 na.opa.ticles em.edded in Li2O-K2O-B2O3 with Cu-doping Cu Li

Bim.ta.lic reduced gra.hene oxide/zeolitic im.da.ola.e fra.0}work hybrid a.rogels for efficient hea.y m.ta.s rem.va.

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FRONTIERS OF CHEm.Ca. SCIENCE a.D ENGINEERING 2024年第8期18卷 89-0页

作者： m.zla., Nurul a. Lewis, a.la.a.Butt, Fra. saeed Krishna.0}orthi, Ra.a.um.ri Chen, Siyu Hua.g, Yi Univ Edinburgh Inst Mat & Proc Sch Engn Edinburgh EH9 3FB Scotland

Gra.hene oxide is a.prom.sing a.sorption m.teria.. However, it ha. been difficult to recycle a.d sepa.a.e gra.hene oxide in the solution. To a.levia.e this problem. gra.hene oxide wa. therm.lly reduced to produce porous hydrogel which wa. then functiona.ized with polydopa.0}ne. The functiona. groups a.t a. not only a.sorption sites but a.so nuclea.ion sites for in situ crysta.liza.ion of coba.t-doped zeolitic-im.da.ola.e-fra.0}work-8 na.o-a.sorbents. The effects of coba.t-doping contents on the physicochem.ca. a.d a.sorption properties of the resulting a.rogel were a.so eva.ua.ed by va.ying the coba.t concentra.ion. For insta.ce, the reduced gra.hene oxide-polydopa.0}ne/50coba.t-zeolitic-im.da.ola.e-fra.0}work-8 a.rogel exhibited a.high surfa.e a.ea.of 900 m.2)m.ddle dot>g(-1) a.d m.inta.ned the structure in wa.er a.ter ten da.s. The a.synthesized a.rogels showed a. ultra.igh a.sorption ca.a.ity of 1217 +/- 24.35 m.m.ddle dot>g(-1) with a.rem.va. efficiency of > 99% of lea., a. well a. excellent a.sorption perform.nce towa.d other hea.y m.ta.s, such a. copper a.d ca.m.um.with a.sorption ca.a.ity of 1163 +/- 34.91 a.d 1059 +/- 31.77 m.m.ddle dot>g(-1), respectively. m.re im.orta.tly, the lea. a.sorption sta.ilized a. 1023 +/- 20.5 m.m.ddle dot>g(-1) with a.rem.va. efficiency of > 80% a.ter seven cycles, indica.ing their potentia. in hea.y m.ta. rem.va. from.industria. wa.tewa.er.

关键词： rGO Co-doped ZIF-8 hea.y m.ta.s a.sorption a.rogel ORGa.IC FRa.0}WORKS a.SORPTION COm.OSITES EQUILIBRIUm m.NOLa.ER KINETICS SURFa.E ZIF-67 Wa.ER OXIDE

Structura. a.d m.gnetic Properties of Cr<sup>3+ </sup>Doped m. Ferrites

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World Journa. of Condensed m.tter Physics 2012年第1期2卷 27-35页

作者： Fa.zun Nesa.a. K. m. Za.a.ia.m. a. saeed Kha. S. m. Yunus a. K. Da. S.-G. Eriksson m. N. I. Kha. m. a. Ha.im Ba.gla.esh a.om.c Energy Com.ission Dhaka Bangladesh Cha.m.rs University of Technology Gothenburg Sweden Ja.a.girna.a. Universiry Dhaka Bangladesh

The polycrysta.line m.CrxFe2-xO4 ferrites (0.0 ? x ? 1.0) were prepa.ed by conventiona. solid sta.e cera.0}c sintering technique in a.r a. 1300?C. X-ra. diffra.tion experim.nts were ca.ried out on a.l the sa.0}les in order to cha.a.terize the m.teria.s a. room.tem.era.ure. The X-ra. diffra.tion pa.terns showed sha.p pea.s indica.ing the form.tion of single pha.ed cubic spinel structure. The la.tice pa.a.0}ters of the sa.0}les were determ.ned from.the X-ra. diffra.tion da.a.using Nelson-Riley extra.ola.ion m.thod. It wa. found tha. the la.tice pa.a.0}ter decrea.ed with increa.ing Cr concen- tra.ion obeying Vega.d’s la.. m.gnetic properties of the sa.0}les were m.a.ured using a. Im.eda.ce a.a.yzer. Rea. a.d im.gina.y pa.ts of the com.lex perm.a.ility, loss fa.tor a.d qua.ity fa.tor were m.a.ured a. the function of frequency a. three different sintering tem.era.ures 1250?C, 1300?C a.d 1350?C for a.l the sa.0}les in the frequency ra.ge 1 kHz to 13 m.z. Frequency sta.ility of the rea. pa.t of perm.a.ility increa.es with increa.ing Cr concentra.ion a.d a.so with sintering tem.era.ure. Im.gina.y pa.t of perm.a.ility decrea.es with increa.ing frequency a.d increa.ed with increa.ing both of the Cr content a.d sintering tem.era.ure. Loss fa.tor decrea.ed with increa.ing frequency while the qua.ity fa.tor (Q) increa.ed with increa.ing frequency for a.l the sa.0}les. The tem.era.ure de- pendence of initia. perm.a.ility wa. m.a.ured for a.l the sa.0}les sintered a. 1300?C. The Curie tem.era.ure (Tc) wa. determ.ned from.the -T curves. The va.ues of Tc were found to be 733 K, 657 K, 583 K, 468 K, 400 K a.d 317 K for x = 0.0, 0.2, 0.4, 0.6, 0.8 a.d 1.0, respectively.

关键词： Ferrites Spinel Structure m.gnetic Properties Perm.a.ility Loss Fa.tor Curie Tem.era.ure

Coupling of Ra.S a.d BEm.Solvers for Sim.la.ion of Propeller Behind the Hull in Full a.pended m.del

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China.Ocea. Engineering 2024年第3期38卷 424-438页

作者： saeed Na.a.I m.hdi POURm.STa.a.LIU Peng-fei Ira.ia. Na.iona. Institute for Ocea.ogra.hy a.d a.m.spheric Science(INIOa.) Tehran 14155-4781Iran Depa.tm.nt of m.ritim. Engineering Amir Kabir University of TechnologyTehran 15875-4413Iran m.rine Offshore and Subsea TechnologySchool of EngineeringNewcastle UniversityNewcastle upon TyneNE17RUUK

To design a.propeller for ship power pla.t,the intera.tion between ship hull a.d propeller m.st be ta.en into *** m.in concern is to a.ply the wa.e effect of ship stern on the propeller *** this pa.er,a.coupled BEm.Bounda.y Elem.nt m.thod)/Ra.S(Renolds-a.era.ed Na.ier−Stokes)solver is used to sim.la.e propeller behind the hull in the self-propulsion *** m.tiva.ion of this work is to develop a.pra.tica. tool to design m.rine propulsion system.without suffering long com.uta.iona. *** unstea.y bounda.y elem.nt m.thod which is a.so known a. pa.el m.thod is chosen to estim.te the propeller *** wa.es a.e trea.ed using a.tim. m.rching wa.e a.ignm.nt ***,a.Ra.S code coupled with VoF equa.ion is developed to consider the ship m.tions a.d wa.e field effects in the problem.a.coupling a.gorithm.is developed to intercha.ge ship wa.e field to the potentia. flow solver a.d propeller thrust to the Ra.S *** on the difference between hull resista.ce a.d the propeller thrust,a.PI controller is developed to com.ute the propeller RPm.in every tim. *** of the solver is ca.ried out using the towing ta.k test report of a.50 m.ocea.ogra.hy resea.ch *** fa.tor a.d trust deduction coefficient a.e estim.ted ***,the wa.e rollup pa.tern of the propeller in open wa.er is com.a.ed with the propeller in rea. wa.e field.

关键词： Ra.S BEm coupled m.thod ship propeller self-propulsion wa.e sheet pa.tern

Tim.-dependent effects in tra.sient liquid pha.e bonding of 304L a.d Cp-Ti using a. a.-Cu interla.er

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Journa. of Centra. South University 2024年第7期31卷 2237-2255页

作者： saeed Va.IRIa. m.ha.1}a. m.SHKBa. Ba.HSHa.ESH a.i Fa.Za.I Depa.tm.nt of m.teria.s a.d m.ta.lurgica. Engineering Amirkabir University of Technology(Tehran Polytechnic)Tehran 15916-34311Iran

One of the cha.lenges for bim.ta. m.nufa.turing is the joining ***,tra.sient liquid pha.e(TLP)bonding wa. perform.d between 304L sta.nless steel a.d Cp-Ti using a. a.-Cu interla.er with a.thickness of 75μm.for bonding tim. of 20,40,60,a.d 90 *** bonding tem.era.ure of 860℃ wa. considered,which is under the β tra.sus tem.era.ure of *** TLP bonding,va.ious interm.ta.lic com.ounds(Im.s),including Ti_(5)Cr_(7)Fe_(17),(Cr,Fe)_(2)Ti,Ti(Cu,Fe),Ti_(2)(Cu,a.),a.d Ti_(2)Cu from.304L towa.d Cp-Ti form.d in the ***,on the one side,with the increa.e in tim.,further diffusion of elem.nts decrea.es the blocky Im.s such a. Ti_(5)Cr_(7)Fe_(17),(Cr,Fe)_(2)Ti,Ti(Cu,Fe)in the 304L diffusion-a.fected zone(Da.)a.d rea.tion zone,a.d on the other side,Ti_(2)(Cu,a.)Im. tra.sform.d into fine m.rphology towa.d Cp-Ti *** m.croha.dness test a.so dem.nstra.ed tha. the(Cr,Fe)_(2)Ti+Ti_(5)Cr_(7)Fe_(17) Im.s in the Da. on the side of 304L ha.e a.ha.dness va.ue of HV 564,m.king it the ha.dest *** m.xim.m.a.d m.nim.m.shea. strength va.ues a.e equa. to 78.84 a.d 29.0 m.a.*** clea.a.e pa.tern dom.na.ed fra.ture surfa.es due to the form.tion of brittle pha.es in dissim.la. joints.

关键词： diffusion bra.ing tra.sient liquid pha.e bonding dissim.la. m.teria. joints m.crostructura. evolution m.cha.ica. properties gra.e 2 tita.ium

Studying the effect of surfa.ta.t a.sisted low-sa.inity wa.er flooding on cla.-rich sa.dstones

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Petroleum 2024年第2期10卷 306-318页

作者： saeed Khezerloo-ye a.hda.1}a.ireza.Ka.em. m.ha.1}a. a.m.di Depa.tm.nt of Petroleum.Engineering Amirkabir University of Technology (AUT) Depa.tm.nt of Petroleum.a.d Chem.ca. Engineering College of Engineering Sultan Qaboos University

Sa.dstone reservoirs often conta.n cla. pa.ticles tha. ca. ca.se da.0}ge a.d reduce perm.a.ility during low-sa.inity wa.er flooding. In this study, the effect of surfa.ta.ts on fine m.gra.ion in cla.-rich sa.dstones a.d its im.a.t on oil recovery wa. ***, the im.a.t of surfa.ta.ts on interpa.ticle forces in fine-m.trix, fine-fine, a.d oil-m.trix system. wa. m.deled. The results showed tha. both CTa.(cetyltrim.thyl a.0}onium.brom.de) a.d QS(quilla.a.sa.onin) ca.se EDL com.a.tion, wea.ening the repulsive forces. However, SDS(sodium.dodecyl sulfa.e)a.d TX(triton X-100) do not a.fect the EDL. Next, the effect of surfa.ta.ts on IFT reduction a.d wetta.ility a.tera.ion wa. experim.nta.ly investiga.ed. a.l surfa.ta.ts reduced IFT due to the surfa.e excessive concentra.ion m.cha.ism. The wetta.ility a.tera.ion experim.nt illustra.ed tha. a.though QS a.d CTa. com.a.t EDL a.ound oil a.d m.trix pa.ticles lea.ing to a.tra.tion force a.gm.nta.ion, they both a.ter wetta.ility through a.sorption on m.trix a.d ca.boxylic groups present in crude oil, *** a.ueous solutions were then injected into va.ious cla.-rich sa.dstone sa.pa.ks, which resulted in increa.ed oil recovery. However, the m.cha.ism. lea.ing to enha.ced oil recovery va.iedby surfa.ta.t type. CTa. increa.ed recovery by 10% through IFT reduction a.d wetta.ility a.tera.ion, while SDS a.d TX increa.ed recovery by 12% a.d 9%, respectively, through wetta.ility a.tera.ion a.d extrem. fine m.gra.ion. In contra.t, pa.tia. fine m.gra.ion in the QS flooding experim.nt rea.hed a.recovery increa.e of 18%. Perm.a.ility trends through experim.nts were a.so recorded. During CTa. injection,perm.a.ility did not reduce, while QS a.ueous solution reduced rock perm.a.ility to 5 m.D. SDS a.d TX reduced the m.gnitude of perm.a.ility to 2 m.*** conclusion, this study dem.nstra.es tha. surfa.ta.ts ca. effectively im.rove oil recovery in cla.-rich sa.dstones by a.tering the interpa.ticle forces, reducing IFT, a

关键词： Surfa.ta.t flooding Sm.rt wa.er Fine m.gra.ion Recovery fa.tor

m.cropha.e m.dula.ion with dipeptidyl peptida.e-4 inhibitors:a.new frontier for trea.ing dia.etic ca.diom.opa.hy?

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World Journa. of Dia.etes 2024年第9期15卷 1847-1852页

作者： saeed m.ha.1}a.i a.m.d a.-Ha.ra.i Na.ura. a.d m.dica. Sciences Resea.ch Center University of NizwaNizwa 616Oman Depa.tm.nt of Biologica. Sciences a.d Chem.stry University of NizwaNizwa 616Oman

This editoria. introduces the potentia. of ta.geting m.cropha.e function for dia.etic ca.diom.opa.hy(DCm.trea.m.nt by dipeptidyl peptida.e-4(DPP-4)*** et a. studied teneligliptin,a.DPP-4 inhibitor used for dia.etes m.na.em.nt,a.d its potentia. ca.dioprotective effects in a.dia.etic m.use *** suggested teneligliptin a.m.nistra.ion m.y reverse esta.lished m.rkers of DCm.including ca.dia. hypertrophy a.d com.rom.sed *** a.so inhibited the NLRP3 infla.0}a.om. a.d reduced infla.0}a.ory cytokine production in dia.etic *** pla. crucia. roles in DCm.*** hyperglycem.a.disturbs the ba.a.ce between pro-infla.0}a.ory(m.)a.d a.tiinfla.0}a.ory(m.)m.cropha.es,fa.oring a.pro-infla.0}a.ory sta.e contributing to hea.t ***,we highlight the potentia. of DPP-4 inhibitors to m.dula.e m.cropha.e function a.d prom.te a. a.ti-infla.0}a.ory *** com.ounds m.y a.hieve this by eleva.ing gluca.on-like peptide-1 levels a.d potentia.ly inhibiting the NLRP3 *** studies on teneligliptin in com.ina.ion with other thera.ies ta.geting different a.pects of DCm.could be suggested for developing m.re effective trea.m.nt stra.egies to im.rove ca.diova.cula. hea.th in dia.etic pa.ients.

关键词： Dia.etic ca.diom.opa.hy m.cropha.e Dipeptidyl peptida.e-4 inhibitor Teneligliptin NLRP3 infla.0}a.om. Gluca.on-like peptide-1

Tem.era.ure-jum. tensile tests to induce optim.zed TRIP/TWIP effect in a.m.ta.ta.le a.stenitic sta.nless steel

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Interna.iona. Journa. of m.nera.s,m.ta.lurgy a.d m.teria.s 2024年第9期31卷 2025-2036页

作者： m.ha.0}a. Ja.a. Sohra.i Ha.0}d m.rza.eh saeed Sa.eghpour a.dol Reza.Gera.m.yeh Reza.m.hm.di School of m.ta.lurgy a.d m.teria.s Engineering College of EngineeringUniversity of Tehran14395-515TehranIran Centre for a.va.ced Steels Resea.ch Materials and Mechanical EngineeringUniversity of Oulu90014 OuluFinland

In the present work,pla.tic deform.tion m.cha.ism. were initia.ly ta.lored by a.justing the deform.tion tem.era.ure in the ra.ge of 0 to 200℃ in a.SI 304L a.stenitic sta.nless steel,a.m.ng to optim.ze the strength-ductility *** wa. shown tha. the com.ined twinning-induced pla.ticity(TWIP)/tra.sform.tion-induced pla.ticity(TRIP)effects a.d a.wider stra.n ra.ge for the TRIP effect up to higher stra.ns by a.justing the deform.tion tem.era.ure a.e good stra.egies to im.rove the strength-ductility synergy of this m.ta.ta.le sta.nless *** this rega.d,by considera.ion of the observed tem.era.ure-dependency of pla.tic deform.tion,the controlled sequence of TWIP a.d TRIP effects for a.chiving superior strength-ductility tra.e-off wa. intended by the pre-designed tem.era.ure jum. tensile ***,the optim.m.tensile toughness of 846 m./m.(3) a.d tota. elonga.ion to 133% were obta.ned by this stra.egy via.exploiting the a.va.ta.es of the TWIP effect a. 100℃ a.d the TRIP effect a. 25℃ a. the la.er sta.es of the ***,a.deform.tion-tem.era.ure-tra.sform.tion(DTT)dia.ra.0}wa. developed for this m.ta.ta.le ***,ba.ed on work-ha.dening a.a.ysis,it wa. found tha. the m.in phenom.non constra.ning further im.rovem.nt in the ductility a.d strengthening wa. the yielding of the deform.tion-induced α′-m.rtensite.

关键词： m.ta.ta.le sta.nless steels tra.sform.tion-induced pla.ticity twinning-induced pla.ticity sta.king fa.lt energy m.cha.ica. properties

Foreca.ting the a.a.em.c Perform.nce by Levera.ing Educa.iona. Da.a.m.ning

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Intelligent a.tom.tion & Soft Com.uting 2024年第2期39卷 213-231页

作者： m.za.0}l m.saeed Depa.tm.nt of Com.uter Science Prince Sattam bin Abdulaziz UniversityAl Kharj11912Saudi Arabia

The study a.m. to recognize how efficiently Educa.iona. Da.a.0}ning(EDm.integra.es into a.tificia. Intelligence(a.)to develop skills for predicting students’*** study used a.survey questionna.re a.d collected da.a.from.300 undergra.ua.e students of a. Neela.n *** first step’s initia. popula.ion pla.em.nts were crea.ed using Pa.ticle Swa.m.Optim.za.ion(PSO).Then,using a.a.tive fea.ure spa.e sea.ch,Educa.iona. Grey Wolf Optim.za.ion(EGWO)wa. em.loyed to choose the optim.l a.tribute *** second sta.e uses the SVm.la.sifier to foreca.t cla.sifica.ion *** cla.sifiers were utilized to eva.ua.e the perform.nce of *** to the results,it wa. revea.ed tha. a. could foreca.t the fina. gra.es of students with a. a.cura.y ra.e of 97%on the test ***,the present study showed tha. successful students could be selected by the Decision Tree m.del with a. efficiency ra.e of 87.50%a.d could be ca.egorized a. ha.ing equa. inform.tion ra.io ga.n a.ter the *** the ra.dom.forest provided a. a.cura.y of 28%.These findings indica.e the higher a.cura.y ra.e in the results when these m.dels were im.lem.nted on the da.a.set which provides significa.tly a.cura.e results a. com.a.ed to a.linea. regression m.del with a.cura.y(12%).The study concluded tha. the m.thodology used in this study ca. prove to be helpful for students a.d tea.hers in upgra.ing a.a.em.c perform.nce,reducing cha.ces of fa.lure,a.d ta.ing a.propria.e steps a. the right tim. to ra.se the sta.da.ds of *** study a.so m.tiva.es a.a.em.cs to a.sess a.d discover EDm.a. severa. other universities.

关键词： a.a.em.c a.hievem.nt a. a.gorithm. cla.sifiers da.a.m.ning deep lea.ning