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Qua.tum Effects on Ra.leigh-Ta.lor Insta.ility of Incompressible Pla.ma.in a. Vertica. Ma.netic Field

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Chinese Physics Letters 2010年第12期27卷 132-135页

作者： G. a. Hoshoudy Depa.tment of a.plied Ma.hema.ics Faculty of Science South Valley University Kena 83523 Egypt

Qua.tum effects on Ra.leigh-Ta.lor insta.ility of a.stra.ified incompressible pla.ma. la.er under the influence of vertica. ma.netic field a.e investiga.ed. The solutions of the linea.ized equa.ions of motion together with the bounda.y conditions lea. to deriving the rela.ion between squa.e norma.ized growth ra.e a.d squa.e norma.ized wa.e number in two a.gebra.c equa.ions a.d a.e numerica.ly a.a.yzed. In the ca.e of the rea. solution of these two equa.ions, they ca. be combined to genera.e a.single equa.ion. The results show tha. the presence of vertica. ma.netic field beside the qua.tum effect will bring a.out more sta.ility on the growth ra.e of unsta.le configura.ion.

关键词： Pla.ma.physics

Tempera.ure-Dependent Viscosity Effects on Non-Da.cy Hydrodyna.ic Free Convection Hea. Tra.sfer from a.Vertica. Wedge in Porous Media

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Chinese Physics Letters 2010年第6期27卷 122-125页

作者： a. M. Sa.em Depa.tment of Ma.hema.ics Faculty of Science Zagazig University Zagazig Egypt

a. a.a.ysis is presented to investiga.e the effect of tempera.ure-dependent viscosity on free convection flow a.ong a.vertica. wedge a.ja.ent to a.porous medium in the presence of hea. genera.ion or a.sorption. The governing funda.enta. equa.ions a.e tra.sformed into the system of ordina.y differentia. equa.ions using sca.ing group of tra.sforma.ions a.d a.e solved numerica.ly by using the fifth-order Rung-Kutta.method with shooting technique for va.ious va.ues of the physica. pa.a.eters. The effects of va.ia.le viscosity pa.a.eter on the velocity, tempera.ure a.d concentra.ion a.e discussed. Numerica. results for the problem considered a.e given a.d illustra.ed gra.hica.ly.

关键词： Tempera.ure Viscose Viscosity Uses Processing

a.eliora.ed effects of La.toba.illus delbrueckii subsp. la.tis DSM 20076 a.d Pediococcus a.idila.tici NNRL B-5627 on Fumonisin B1-induced Hepa.otoxicity a.d Nephrotoxicity in ra.s

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a.ia. Journa. of Pha.ma.eutica. Sciences 2016年第2期11卷 326-336页

作者： a.ira.a. a.della.ef a.hra. a. Kha.il Depa.tment of Protein Technology Institute of Genetic Engineering and Biotechnology City of Scientific Research and Technological ApplicationsBorg El-Arab

Oxida.ive stress ha. been implica.ed in a.number of huma. regenera.ion a.d disea.e processes including a.herosclerosis, pulmona.y fibrosis, ca.cer, a.d different neurodegenera.ive *** a.m of this study wa. to eva.ua.e the protective effects of La.toba.illus delbrueckii subsp. la.tis DSM 20076 (LL-DSM) a.d Pediococcus a.idila.tici NNRL B-5627 (Pa.NNRL) a.a.nst the hepa.ic-a.d nephro-toxicity of fumonisin B1 (FB1) in FB1-trea.ed ra.s for a. experimenta. period of 4-weeks. Eighty ma.ure ma.e Spra.ue-Da.ley ra.s were divided to 12 groups: 1 untrea.ed group;3 groups fed by a.FB1-conta.ina.ed diet (50, 100 a.d 200 mg FB1/kg diet,respectively);1 group fed ora.ly by LL-DSM(1 ml/d);1 group fed ora.ly by Pa.NNRL (1 ml/d);3 groups co-a.ministered by FB1-conta.ina.ed diet a.d LL-DSM (1 ml/d), a.d 3 groups coa.ministered by FB1-conta.ina.ed diet a.d Pa.NNRL(1 ml/d). Ma.ona.dehyde (MDa. nitric oxide, gluta.hione content, SOD a.tivity, tota. a.tioxida.t ca.a.ity (Ta.), tota. oxida.t sta.us (TOS) a.d oxida.ive stress index (OSI) were determined. DPa.a.sa. wa. used to a.sess a.optosis in liver a.d kidney *** a.ima.s fed with FB1-conta.ina.ed diet showed a.significa.t increa.e in oxida.ive stress ma.kers a.d DNa.fra.menta.ion a.compa.ied with significa.t decrea.e in GSH content, SOD a.tivity, a.d Ta. in liver a.d kidney tissues, especia.ly a. highdosa.e of FB1 (T200). Probiotics a.tioxida.t stra.ns (LL-DSM a.d Pa.NNRL) rela.ively succeeded to restore a.most a.l pa.a.eters investiga.ed a. well a. to reduce DNa.fra.menta.ion in liver a.d kidney tissues. a. a.conclusion, probiotics ma. induce its protective role via.increa.ing the a.tioxida.t ca.a.ity, inhibition of lipid peroxida.ion, sca.enging of free ra.ica.s a.d decrea.ing DNa.lesions in liver a.d kidney of experimenta. a.ima.s tested.

关键词： Fumonisin B1 La.tic a.id ba.teria Oxida.ive stress a.tioxida.t a.tivity Lipid peroxida.ion a.optosis

Three-dimensiona. stretched flow of Jeffrey fluid with va.ia.le therma. conductivity a.d therma. ra.ia.ion

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a.plied Ma.hema.ics a.d Mecha.ics(English Edition) 2013年第7期34卷 823-832页

作者： T. Ha.a. S. a. SHEHZa. a. a.Sa.DI Depa.tment of Ma.hema.ics Quaid-i-Azam University Depa.tment of Ma.hema.ics Faculty of Science King Abdulaziz University

This a.ticle a.dresses the three-dimensiona. stretched flow of the Jeffrey fluid with therma. ra.ia.ion. The therma. conductivity of the fluid va.ies linea.ly with respect to tempera.ure. Computa.ions a.e performed for the velocity a.d tempera.ure fields. Gra.hs for the velocity a.d tempera.ure a.e plotted to exa.ine the beha.iors with different pa.a.eters. Numerica. va.ues of the loca. Nusselt number a.e presented a.d discussed. The present results a.e compa.ed with the existing limiting solutions, showing good a.reement with ea.h other.

关键词： three-dimensiona. flow va.ia.le therma. conductivity therma. ra.ia.ion Jeffrey fluid

Erbium-Doped Zirconia.a.umina.Silica.Gla.s-Ba.ed Fiber a. a.Sa.ura.le a.sorber for High Repetition Ra.e Q-Switched a.l-Fiber La.er Genera.ion

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Chinese Physics Letters 2017年第8期34卷 63-66页

作者： P. Ha.sha.a.dha. Reddy N. a. a. Ka.ir M. C. Pa.l S, Da. a. Dha. E. I. Isma.l a. a. La.iff S. W. Ha.un Fiber Optics a.d Photonics Division CSIR-Central Glass and Ceramic Research Institute Kolkata 700032 India a.a.emy of Scientific a.d Innova.ive Resea.ch CSIR-CGCRI Campus Kolkata 700032 India Depa.tment of Electrica. Engineering Faculty of Engineering University of Malaya Kuala Lumpur 50603 Malaysia Photonics Resea.ch Centre University of Malaya Kuala Lumpur 50603 Malaysia Fa.ulty of Electronic a.d Computer Engineering (FKEKK) Universiti Teknikal Malaysia Melaka Melaka 76100 Malaysia

We propose a.d demonstra.e a.Q-switched erbium-doped fiber la.er （EDFL） using a. erbium-doped zirconia.a.umina.silica.gla.s-ba.ed fiber （Zr-EDF） a. a.sa.ura.le a.sorber. a. a.16-cm-long Zr-EDF is incorpora.ed into a.ring EDFL ca.ity, a.sta.le Q-switching pulse tra.n opera.ing a. 1565？nm wa.elength is successfully obta.ned. The repetition ra.e is tuna.le from 33.97？kHz to 71.23？kHz by increa.ing the pump power from the threshold of 26？mW to the ma.imum of 74？mW. The highest pulse energy of 26.67？nJ is obta.ned a. the ma.imum pump power.

关键词： EDF Zr Erbium-Doped Zirconia.a.umina.Silica.Gla.s-Ba.ed Fiber a. a.Sa.ura.le a.sorber for High Repetition Ra.e Q-Switched a.l-Fiber La.er Genera.ion kHz a.

SIMILa.ITY SOLUTIONS FOR VISCOUS Ca.ITa.ING VORTEX CORES

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Journa. of Hydrodyna.ics 2008年第6期20卷 679-688页

作者： BOSSCHERS J Ja.SSEN a. a. HOEIJMa.ERS H. W. M. Ma.itime Resea.ch Institute Netherla.ds (Ma.IN) P.O. Box 28 6700 AA Wageningen The Netherlands University of Twente Enschede The Netherlands

Theoretica. a.a.ysis of the dyna.ic beha.ior of ca.ita.ing vortices requires knowledge of the velocity distribution in the vortex core. For tha. rea.on a. existing simila.ity model for slender a.isymmetric non-ca.ita.ing vortex cores ha. been extended with the viscous bounda.y conditions for a.ca.ita.ing vortex. Ca.ita.ing simila.ity solutions exist for a.vortex of which both core dia.eter a.d circula.ion grow with the squa.e root of the a.ia. coordina.e. Results for this model a.e presented for va.ying ca.ita.ion numbers a.d Reynolds numbers. It is shown tha. viscosity ma. ha.e a.significa.t influence on the velocity distribution a.ound a.ca.ita.ing vortex.

关键词： ca.ita.ion vortex viscous flow

Ignition Conditions for Simula.ed Fuel Pellets in Degenera.e Pla.ma

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Pla.ma.Science a.d Technology 2013年第4期15卷 323-328页

作者： M. Ma.Da.I a. GHOLa.I Physics Depa.tment Mazandaran University

a.high-density, low-tempera.ure pla.ma.ca. be obta.ned during the compression pha.e in inertia. confinement fusion. When high density a.d low tempera.ure a.e rea.hed in the pla.ma.in the fa.t ignition a.proa.h, the pla.ma.electrons ca. be degenera.e. The electronic stopping of a.slow ion is sma.ler tha. tha. given by the cla.sica. formula. beca.se some tra.sitions between the electron sta.es a.e forbidden. In this ca.e, bremsstra.lung emission is strongly sup- pressed a.d the ignition tempera.ure becomes lower tha. tha. in cla.sica. pla.ma. The equa.ions tha. predict the beha.ior of these pla.ma. a.e different from the cla.sica. ones, a.d this is the ma.n fa.tor in the process of decrea.ing the ignition tempera.ure of the pla.ma. In this work, physica. conditions of ignition a.e studied by ca.cula.ing the effect of ra.ia.ion loss on the ignition tempera.ure for a.simula.ed fuel pellet, （D/Tx/3Hey）, in degenera.e pla.ma. In fa.t ignition, the energy needed for obta.ning high densities is minimized a.d the ga.n ca. be increa.ed considera.ly.

关键词： inertia. fusion degenera.e pla.ma ignition tempera.ure bremsstra.lungemission

SOME REMa.KS ON HYDROFOIL Ca.ITa.ION

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Journa. of Hydrodyna.ics 2012年第3期24卷 305-314页

作者： a.NDT Roger E. a. Sa.nt a.thony Fa.ls La.ora.ory University of Minnesota MinneapolisMN 55414 USA

This pa.er reviews numerica. a.d experimenta. investiga.ions of sheet/cloud ca.ita.ion ca.ried out a. the St. a.thony Fa.ls La.ora.ory a.d a. two colla.ora.ing fa.ilities （Versuchsa.sta.t Ftir Wa.serba., Oberna.h, Germa.y a.d Osa.a.University, Ja.a.） for more tha. a.deca.e. a.though significa.t a.va.ces ha.e been ma.e in the a.a.ysis of this flow severa. issues a.e still unresolved. The purpose of this pa.er is to exa.ine the overa.l fea.ures of the problem, review the progress ma.e to da.e a.d suggest a.enues for new investiga.ion.

关键词： ca.ita.ion hydrofoil numerica. simula.ions

Experimenta. investiga.ions of the functiona. morphology of dra.onfly wings

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Chinese Physics B 2013年第8期22卷 738-745页

作者： H. Ra.a.i a. Da.vizeh Depa.tment of Mecha.ica. Engineering Faculty of Engineering The University of GuilanRasht Iran

Nowa.a.s, the importa.ce of identifying the flight mecha.isms of the dra.onfly, a. a. inspira.ion for designing fla.ping wing vehicles, is well known. a. experimenta. a.proa.h to understa.ding the complexities of insect wings a. orga.s of flight could provide significa.t outcomes for design purposes. In this pa.er, a.comprehensive investiga.ion is ca.ried out on the morphologica. a.d microstructura. fea.ures of dra.onfly wings. Sca.ning electron microscopy （SEM） a.d tensile testing a.e used to experimenta.ly verify the functiona. roles of different pa.ts of the wings. a.number of SEM ima.es of the elements of the wings, such a. the nodus, lea.ing edge, tra.ling edge, a.d vein sections, which pla. domina.t roles in strengthening the whole structure, a.e presented. The results from the tensile tests indica.e tha. the nodus might be the critica. region of the wing tha. is subjected to high tensile stresses. Considering the pa.terns of the longitudina. corruga.ions of the wings obta.ned in this pa.er, it ca. be supposed tha. they increa.e the loa.-bea.ing ca.a.ity, giving the wings a. a.ility to tolera.e dyna.ic loa.ing conditions. In a.dition, it is suggested tha. the longitudina. veins, a.ong with the lea.ing a.d tra.ling edges, a.e structura. mecha.isms tha. further improve fa.igue resista.ce by providing higher fra.ture toughness, preventing cra.k propa.a.ion, a.d a.lowing the wings to susta.n a.significa.t a.ount of da.a.e without loss of strength.

关键词： dra.onfly wings SEM tensile test nodus longitudina. corruga.ion