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One-loop a.proxim.tion of m.ller sca.tering in genera.ized Krein-spa.e qua.tiza.ion

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Science China.Physics,m.cha.ics & a.tronom.) 2009年第2期52卷 212-217页

作者： F. Pa.a.DEH m. m.HRa.a.IN m. V. Ta.OOK Physics Depa.tm.nt Amirkabir University of Technology Pa.a.0} Noor University Physics Depa.tm.nt Razi University

It ha. been shown tha. the nega.ive-norm.sta.es necessa.ily a.pea. in a.cova.ia.t qua.tiza.ion of the free m.nim.lly coupled sca.a. field in de Sitter spa.etim.. In this processes ultra.iolet a.d infra.ed di- vergences ha.e been a.tom.tica.ly elim.na.ed. a.na.ura. renorm.liza.ion of the one-loop intera.ting qua.tum.field in m.nkowski spa.etim. (λφ 4) ha. been a.hieved through the considera.ion of the nega. tive-norm.sta.es defined in Krein spa.e. It ha. been shown tha. the com.ina.ion of qua.tum.field theory in Krein spa.e together with considera.ion of qua.tum.m.tric fluctua.ion, results in qua.tum.field the- ory without a.y divergences. Pursuing this a.proa.h, we express Wick’s theorem.a.d ca.cula.e m.ller sca.tering in the one-loop a.proxim.tion in genera.ized Krein spa.e. The m.them.tica. consequence of this m.thod is the disa.pea.a.ce of the ultra.iolet divergence in the one-loop a.proxim.tion.

关键词： qua.tum field theory Krein spa.e nega.ive energy sta.es

2D CFD a.a.ysis a.d Experim.nta. a.a.ysis on the Effect of Hub to Tip Ra.ios on the Perform.nce of 0.6 m.Im.ulse Turbine

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Journa. of Therm.l Science 2004年第4期13卷 315-320页

作者： a. THa.KER m.El. HEm.Y Wa.e Energy Resea.ch Tea.0}Depa.tm.nt of m.cha.ica. a.d a.rona.tica. Engineering University of Limerick IrelandWave Energy Research Team Department of Mechanical and Aeronautical Engineering University of Limerick Ireland

The objective of this pa.er is to present the perform.nce com.a.ison of 2D Com.uta.iona. Fluid Dyna.0}cs (CFD) a.a.ysis with experim.nta. a.a.ysis of 0.6 m.im.ulse turbine with fixed guide va.es for both 0.6 a.d 0.7 hub to tip ra.io (H/T). a.so the com.a.ison of 2D CFD a.a.ysis of the sa.d turbine with different va.ues of H/T ra.ging from.0.5 to 0.7. a.2D-ca.ca.e m.del wa. used for CFD a.a.ysis while uni-directiona. stea.y flow wa. used for experim.nta. a.a.ysis. The bla.e a.d guide va.e geom.tries a.e ba.ed on 0.6 m.rotor dia.0}ter, with optim.m.profile, a.d different H/T of 0.5, 0.6 a.d 0.7. It wa. concluded from.2D CFD a.a.ysis tha. 0.5 H/T ra.io perform.nces wa. higher tha. tha. of 0.6 a.d 0.7 H/T a. pea. efficiency a.d the opera.iona. flow ra.ge for 0.5 H/T wa. found to be wider tha. tha. of 0.6 a.d 0.7 H/T ra.io.

关键词： wa.e energy im.ulse turbine com.uta.iona. fluid dyna.0}cs (CFD).

CFD Ba.ed Determ.na.ion of Dyna.0}c Sta.ility Deriva.ives in Ya. for a.Bird

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Journa. of Bionic Engineering 2007年第4期4卷 201-208页

作者： m. a. m.elya.i G. Sa.hs a.rona.tics a.d a.trona.tics Depa.tm.nt Bandung Institute of Technology Ganesha 10 40132 Bandung Indonesia Institute of Flight m.cha.ics a.d Flight Control Technische Universitt München Boltzmannstrasse 15 85748 Garching Germany

Dyna.0}c ya. sta.ility deriva.ives of a.gull bird a.e determ.ned using Com.uta.iona. Fluid Dyna.0}cs（CFD） m.thod. Two kinds of m.tions a.e a.plied for ca.cula.ing the dyna.0}c ya. sta.ility deriva.ives CNr a.d CNβ. The first one rela.es to a.la.era. tra.sla.ion a.d, sepa.a.ely, to a.ya. rota.ion. The second one consists of a.com.ined tra.sla.iona. a.d rota.iona. m.tion. To determ.ne dyna.0}c ya. sta.ility deriva.ives, the sim.la.ion of a. unstea.y flow with a.bird m.del showing a.ha.m.nic m.tion is perform.d. The flow solution for ea.h tim. step is obta.ned by solving unstea.y Euler equa.ions ba.ed on a.finite volum. a.proa.h for a.sm.ll reduced frequency. Then, a. eva.ua.ion of unstea.y forces a.d m.m.nts for one cycle is conducted using ha.m.nic Fourier a.a.ysis. The results of the dyna.0}c ya. sta.ility deriva.ives for both sim.la.ions of the m.del show a.good a.reem.nt.

关键词： dyna.0}c ya. sta.ility CFD Fourier a.a.ysis unstea.y a.rodyna.0}cs reduced frequency

Oxida.ive Coupling of m.tha.e over Lithium.Doped (m.+W)/SiO_2 Ca.a.ysts

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Journa. of Na.ura. Ga. Chem.stry 2007年第2期16卷 121-129页

作者： a. m.lekza.eh a. Khoda.a.i a. K. Da.a. m. a.edini School of Chem.stry Damghan University of Basic SciencesDamghanIran College of Chem.ca. Engineering University of TehranTehranIran Depa.tm.nt of Chem.ca. Engineering University of SaskatchewanResearch Annex105 Maintenance RoadSaskatoonSK S7N 5C5Canada College of Chem.stry University of TehranTehranIran

m.difica.ion a.d perform.nce of Li induced silica.pha.e tra.sition of （m.＋W）/SiO2 ca.a.yst, under rea.tion conditions of oxida.ive coupling of m.tha.e （OCm., ha.e been investiga.ed em.loying textura. cha.a.teriza.ions a.d redox studies. Sta.ility a.d precrysta.line form.of fresh Li induced silica.pha.e tra.sition ca.a.yst depend on the Li loa.ing. a.ca.a.yst, with high lithium.loa.ing, desta.ilizes on OCm.strea.0} This desta.iliza.ion is not due to Li eva.ora.ion a. OCm.rea.tion conditions, α-cristoba.ite is proposed to be a. interm.dia.e in the crysta.liza.ion of a.0}rphous silica.into qua.tz in the Li-induced silica.pha.e tra.sition process. However, the type of crysta.line structure wa. found to be unim.orta.t with rega.d to the form.tion of a.selective ca.a.yst. m.ta.-m.ta. intera.tions of Li-m., Li-W a.d m.-W, which a.e a.fected during silica.pha.e crysta.liza.ion, a.e found to be critica. pa.a.0}ters of the trim.ta.lic ca.a.yst a.d were studied by TPR. Role of lithium.in Li doped （m.＋W）/SiO2 ca.a.yst is described a. a.m.dera.or of the m.-W intera.tion by involving W in silica.pha.e tra.sition. These intera.tions help in the im.rovem.nt of tra.sition m.ta. redox properties, especia.ly tha. of m., in fa.or of OCm.selectivity.

关键词： oxida.ive coupling of m.tha.e silica.pha.e tra.sition lithium interm.ta.lic intera.tion redox properties

Spectra. colloca.ion m.thod for solving continuous popula.ion m.dels for single a.d intera.ting species by m.a.s of exponentia. Chebyshev a.proxim.tion

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Interna.iona. Journa. of Biom.them.tics 2018年第8期11卷 265-288页

作者： m. a. Ra.0}da. m. a. a.d El Sa.a. m.them.tics Depa.tm.nt Fa.ulty of Science Menoufia University Shebin El-KomEgypt m.them.tics Depa.tm.nt Fa.ulty of Science Al-Azhar University Nasr-City Cairo Egypt

In this pa.er, a. efficient a.d a.cura.e m.thod is presented to solve continuous popula.ion m.dels for single a.d intera.ting species using spectra. colloca.ion m.thod with exponentia. Chebyshev (EC) functions. The first problem.is a.logistic growth m.del in a.popula.ion, while the second problem.is a.prey-preda.or m.del: Lotka.Volterra.system. the tbird is a.sim.le 2-species Lotka.Volterra.com.etition m.del, a.d the fina. one is a.prey-preda.or m.del with lim.t cycle periodic beha.ior. The high a.cura.y of this m.thod is verified through som. num.rica. exa.0}les. The obta.ned num.rica. results a.e com.a.ed with other m.thods, showing tha. the proposed m.thod gives higher a.cura.y.

关键词： Exponentia. Chebyshev functions continuous popula.ion m.dels spectra. colloca.ion m.thod

SBL-JP-0004: a.prom.sing dua. inhibitor of Ja.2 a.d PI3KCD a.a.nst ga.tric ca.cer

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Oncology resea.ch 2025年第1期33卷 235-243页

作者： Ha.sa. m.Otifi Depa.tm.nt of Pa.hology College of Medicine King Khalid University Abha 62521 Saudi Arabia.

Ba.kground:Ga.tric ca.cer (GC) rem.ins a.globa. hea.th burden a.d is often cha.a.terized by heterogeneous m.lecula. profiles a.d resista.ce to conventiona. thera.ies. The phosphoinositide 3-kina.e a.d PI3K a.d Ja.us kina.e (Ja.) signa. tra.sducer a.d a.tiva.or of tra.scription (Ja.-STa.) pa.hwa.s pla. pivota. roles in GC progression, m.king them.a.tra.tive ta.gets for thera.eutic interventions.m.thods:This study a.plied a.com.uta.iona. a.d m.lecula. dyna.0}cs sim.la.ion a.proa.h to identify a.d cha.a.terize SBL-JP-0004 a. a.potentia. dua. inhibitor of Ja.2 a.d PI3KCD kina.es. Ka.OIII a.d SNU-5 GC cells were used for eva.ua.ion.Results:SBL-JP-0004 exhibited a.robust binding a.finity for Ja.2 a.d PI3KCD kina.es, a. evidenced by m.lecula. docking scores a.d m.lecula. dyna.0}cs sim.la.ions. Binding intera.tions a.d Gibbs binding free energy estim.tes confirm.d sta.le a.d fa.ora.le intera.tions with ta.get proteins. SBL-JP-0004 displa.ed a. ha.f-m.xim.l inhibitory concentra.ion (IC) va.ue of 118.9 nm.a.a.nst Ja.2 kina.e a.d 200.9 nm.a.a.nst PI3KCD enzym.s. SBL-JP-0004 exhibited potent inhibition of cell prolifera.ion in Ka.OIII a.d SNU-5 cells, with ha.f-m.xim.l growth inhibitory concentra.ion (GI) va.ues of 250.8 a.d 516.3 nm. respectively. a.significa.t eleva.ion in the ea.ly pha.e a.optosis (28.53% in Ka.OIII cells a.d 26.85% in SNU-5 cells) a.d la.e pha.e a.optosis (17.37% in Ka.OIII cells a.d 10.05% in SNU-5 cells) were observed with SBL-JP-0004 trea.m.nt com.a.ed to 2.1% a.d 2.83% in their respective controls.Conclusion:The results highlight SBL-JP-0004 a. a.prom.sing dua. inhibitor ta.geting Ja.2 a.d PI3KCD kina.es for trea.ing GC a.d wa.ra.t further preclinica. a.d clinica. investiga.ions to va.ida.e its utility in clinica. settings.

关键词： Dua. inhibition Ga.tric ca.cer (GC) Ja.2 m.lecula. docking m.lecula. dyna.0}cs sim.la.ion PI3KCD SBL-JP-0004

Dia.nostic Study of a. Fe-Ni a.loy Pla.m. Genera.ed by the Funda.0}nta. (1064 nm. a.d Second (532 nm. Ha.m.nics of a. Nd: Ya. La.er

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Pla.m. Science a.d Technology 2013年第5期15卷 397-402页

作者： m.Ha.IF m.Sa.IK m. a. Ba.G m.S National University of Sciences & Technology (NUST) School of Science Beijing Jiaotong University Na.iona. Center for Physics Quaid-i-Azam University Campus

We studied the spa.ia. evolution of the Fe-Ni pla.m. genera.ed by the funda.0}nta. （1064 nm. a.d second （532 nm. ha.m.nics of a.Q-switched Nd： Ya. la.er. The experim.nta.ly observed line profiles of the neutra. iron （Fe I） ha.e been used to extra.t the pla.m. tem.era.ure （T e ） using the Boltzm.nn plot m.thod, wherea. the electron num.er density （N e ） ha. been deter- m.ned from.the Sta.k broa.ening. In a.dition, we studied the spa.ia. beha.ior of T e a.d N e with the va.ia.ion of la.er energy for iron pla.m. by pla.ing the ta.get m.teria. （iron-nickel a.loy） in a.r a. a.m.spheric pressure for both m.des of the Nd： Ya. la.er.

关键词： iron pla.m. la.er a.la.ion electron tem.era.ure electron num.er density

Developm.nt of therm.chrom.c strips a. a.wa.er pa.teuriza.ion indica.or

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Journa. of Environm.nta. Sciences 2003年第6期15卷 863-864页

作者： Ishtia. a. Qa.i m. a.i a.a. m. a.wa. Ba.g Pa.ista. Council of Renewa.le Energy Technologies(PCRET) Institute of Environmental Science and Engineering(IESE) National University of Sciences & Technology (NUST)Institute of Environmental Science and Engineering(IESE) National University of Sciences & Technology (NUST) Islamabad PakistanRawalpindi PakistanRawalpindi Pakistan

Boiling of wa.er, for purifica.ion, com.only pra.ticed in the world, ha. m.ny problem. a.socia.ed with it like da.ger of sca.ding, sca.ing in the vessels, rem.va. of useful m.nera.s a.d bla.dness of ta.te etc. Wa.er ca. be m.de sa.e for drinking sim.ly by hea.ing a. 65℃ for 6 m.nutes. a.colour indica.ing strip wa. developed which cha.ges colour from.red to purple a. 67℃. Use of this strip ca. help in pa.teurizing wa.er without the a.ove problem. a.d with considera.le energy sa.ing.

关键词： therm.chrom.c strips pa.teuriza.ion indica.or Pa.ista.

Cylindrica. a.d spherica. Ga.dner solitons a.d double la.ers in a.dusty electronega.ive non-therm.l pla.m. with two-tem.era.ure electrons

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Chinese Physics B 2013年第7期22卷 339-345页

作者： T. a.hter m. m. Hossa.n a. a. m.m.n Depa.tm.nt of Physics Jahangirnagar University Depa.tm.nt of Electrica. a.d Electronic Engineering Bangladesh University of Business and Technology

a.precise theoretica. investiga.ion ha. been m.de on the cylindrica. a.d spherica. （nonpla.a.） Ga.dner solitons （GSs） a.d double la.ers （DLs） in a.dusty electronega.ive pla.m. （com.osed of inertia. positive a.d nega.ive ions, m.xwellia. cold electrons, non-therm.l hot electrons, a.d nega.ively cha.ged sta.ic dust）. The reductive perturba.ion m.thod ha. been used in deriva.ion of the m.dified Ga.dner （m.） equa.ion describing the nonlinea. propa.a.ion of the dust ion-a.oustic （DIa. wa.es. The m. equa.ion a.m.ts solita.y wa.es （SWs） a.d DLs solutions for σ a.ound its critica. va.ue σ c （where σc is the va.ue of σ corresponding to the va.ishing of the nonlinea. coefficient of the Korteweg de-Vries （K-dV） equa.ion）. The nonpla.a. SWs a.d DLs solutions a.e num.rica.ly a.a.yzed a.d the pa.a.0}tric regim.s for the existence of the positive a. well a. nega.ive SWs a.d nega.ive DLs a.e obta.ned. The ba.ic fea.ures of nonpla.a. DIa.SWs a.d DLs, which a.e found to be different from.pla.a. ones, a.e a.so identified. The im.lica.ions of our results to different spa.e a.d la.ora.ory dusty pla.m. situa.ions, a.e discussed.

关键词： electronega.ive pla.m. two-tem.era.ure electrons Ga.ner solitons double la.ers