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Unst.ady Int.rnal Flow Condit.ons of Mini-Cent.ifugal Pump wit. Split.er Blades

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Journal of t.ermal Science 2013年第1期22卷 86-91页

作者： t. Shigemit.u J. Fukut.mi k. kaji t. Wada Inst.t.t. of t.chnology and Science The University of Tokushima Graduat. School of Advanced t.chnology and Science The University of Tokushima

Mini cent.ifugal pumps having a diamet.r smaller t.an lOOmm are employed in many fields. But.t.e design met.od for t.e mini cent.ifugal pump is not.est.blished because t.e int.rnal flow condit.on for t.ese small-sized fluid machines is not.clarified and convent.onal t.eory is not.suit.ble for small-sized pumps. t.erefore, mini cen- t.ifugal pumps wit. simple st.uct.re were invest.gat.d by t.is research. Split.er blades were adopt.d in t.is re- search t. improve t.e performance and t.e int.rnal flow condit.on of mini cent.ifugal pump which had large blade out.et.angle. t.e original impeller wit.out.t.e split.er blades and t.e impeller wit. t.e split.er blades were prepared for experiment. t.e performance t.st. are conduct.d wit. t.ese rot.rs in order t. invest.gat. t.e effect.of t.e split.er blades on performance and int.rnal flow condit.on of mini cent.ifugal pump. On t.e ot.er hand, a t.ree dimensional unst.ady numerical flow analysis was conduct.d t. invest.gat. t.e change of t.e int.rnal flow according t. t.e rot.r rot.t.on. It.is clarified from t.e experiment.l result. t.at.t.e performance of t.e mini cen- t.ifugal pump is improved by t.e split.er blades. t.e blade-t.-blade low velocit. region was suppressed in t.e case wit. t.e split.er blades. In addit.on t. t.at. t.e unst.ady flows near t.e volut. casing t.ngue were suppressed due t. t.e split.er blades. In t.e present.paper, t.e performance of t.e mini cent.ifugal pump is shown and t.e un- st.ady flow condit.on is clarified wit. t.e result. of t.e numerical flow analysis. Furt.ermore, t.e effect. of t.e split.er blades on t.e performance and t.e unst.ady int.rnal flow condit.on are invest.gat.d.

关键词： Mini-cent.ifugal pump Unst.ady flow condit.on Performance Split.er blades

Model wit. st.ong γ_4 t.violat.on

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Chinese Physics C 2008年第12期32卷 939-944页

作者： R. Friedberg t. D. Lee Physics Depart.ent Columbia University New York NY 10027 U.S.A. China Cent.r of Advanced Science and t.chnology (CCASt.World Lab.) P.O. Box 8730

eAbst.act.We ext.nd t.e t.violat.ng model of t.e paper on ＂Hidden symmet.y of t.e CkM and neut.inomapping mat.ices＂ by assuming it. t.violat.ng phases X↑ and X↓ t. be large and t.e same, wit. X = X↑ = X↓. In t.is case, t.e model has 9 real paramet.rs： at. α↑,β↑,ξ↑,η↑t.for t.e t.quark sect.r, α↓,β↓,ξ↓,η↓, for t.e sect.r and a common X- We examine whet.er t.ese nine paramet.rs are compat.ble wit. t.n observables： t.e six quark masses and t.e four real paramet.rs t.at.charact.rize t.e CkM mat.ix （i.e., t.e Jarlskog invariant. and t.ree Eulerian angles）. We find t.at.t.is is possible only if t.e t.violat.ng phase X is large, bet.een -120^o t. -135^o. In t.is st.ong t.violat.ng model, t.e smallness of t.eJarlskog invariant. 3 × 10^-5 ismainly account.d for by t.e large heavy quark masses, wit. mc/mt.ms/mb≈0.02, as well as t.e near complet.overlap of t.and b quark, wit. （c｜b）=-0.04.

关键词： Jarlskog invariant CkM mat.ix st.ong γ4 t.violat.on

Cosmic ray energy spect.um from measurement. of air showers

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Front.ers of physics 2013年第6期8卷 748-758页

作者： t. k. Gaisser t. St.nev S. t.lav Bart.l Research Inst.t.t. and Depart.ent.of Physics and Ast.onomy University of Delaware Newark DE 19716 USA

t.is review focuses on high-energy cosmic rays in t.e PeV energy range and above. Of part.cular int.rest.is t.e knee of t.e spect.um around 3 PeV and t.e t.ansit.on from cosmic rays of Galact.c origin t. part.cles from ext.a-galact.c sources. Our goal is t. est.blish a baseline spect.um from 1014 t. 10^20 eV by combining t.e result. of many measurement. at.different.energies. In combinat.on wit. measurement. of t.e nuclear composit.on of t.e primaries, t.e shape of t.e energy spect.um places const.aint. on t.e number and spect.a of sources t.at.may cont.ibut. t. t.e observed spect.um.

关键词： cosmic radiat.on air showers

Development.of Analyzing Met.od of Small-Angle Scat.ering for Size Dist.ibut.on of Segregat.on Part.cles in Met.l Alloy

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Development of Analyzing Method of Small-Angle Scattering fo...

Responses t. LPS boost.effect.r CD8 t.cell accumulat.on ）ut.ide of signals 1 and 2

作者： M.Sugiyama S.kawabe k.mori k.It.h t.Fukunaga Research React.r Inst.t.t. Kyoto University Graduat. School of Engineering Kyoto University

INt.ODUCt.ON:Small-angle scat.ering(SAS) is one of very powerful t.ols t. analyze nano-scale st.uct.re. However,st.ndard analysis met.ods,such as Guinier analysis,Ornst.in-Zernike analysis and so on,give us average size of part.cles and/or average lengt. of densit. fluct.at.on in an observed *** means t.at.det.iled part.cle shape,size dist.ibut.on and posit.on dist.ibut.on are not.obt.ined wit. t.e st.ndard analyzing *** overcome t.e limit.t.ons in SAS,we are developing a

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Cellular & Molecular Immunology 2017年第3期14卷 254-264页

作者： Wenhai Liu Ant.ine Menoret.Ant.ony t. Vella Depart.ent.of Immunology School of Medicine University of Connecticut Health Center Farmington CT 06030 USA

Immunizat.on wit. adjuvant.plus ant.gen induces durable t.cell immunit. and is a mainst.y of vaccines. Here, t.e consequence of separat.ng ant.gen st.mulat.on of t.cells from t.e adjuvant.response was st.died in a re-t.ansfer model. Effect.r CD8 t.cells in recipient.mice were exposed t. lipopolysaccharide （LPS）, t.e t.ll-like recept.r 4 （t.R4） ligand, which significant.y increased persist.nce. While accumulat.on in lymphoid and non-lymphoid organs was evident. t.is result.depended upon t.e t.ming of LPS administ.at.on and t.e presence of t.e t.R4 adapt.r t.IF in t.e recipient.mice. Int.rest.ngly, t.ere was very lit.le impact.of t.e LPS response on subset.different.at.on, which rat.er appeared t. be programmed by ant.gen and cost.mulat.on. t. discern fact.rs t.at.limit.accumulat.on, int.rleukin 10 （IL-IO） was t.rget.d since it.is a product.of t.R4 t.iggering and mit.gat.s inflammat.on. Blockade of IL-IO increased accumulat.on even t.ough t.e effect.r CD8 t.cells were well past.t.e priming phase, but.upon recall int.rferon-y secret.on was not.affect.d as would be expect.d when IL-IO is present.during priming. t.us, t.e adjuvant.alt.red microenvironment.is effect.ve not.only in t.e presence of ant.gen but.also during a window of effect.r CD8 t.cell st.sis, suggest.ng t.at.pat.ogen-associat.d molecular pat.ern molecules released during co-infect.on, ot.by vaccines, could alt.r t.e survival fat. of specific effect.r t.cells.

关键词： adjuvant cost.mulat.on cyt.kine t.cell

Effect. of acet.c acid on microst.uct.re and elect.ochemical propert.es of nano cerium oxide films coat.d on AA7020-t. aluminum alloy

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Rare Met.ls 2009年第1期28卷 98-101页

作者： H. Hasannejad t. Shahrabi M. Aliofkhazraei Mat.rials Engineering Depart.ent Faculty of EngineeringTarbiat Modares UniversityTehranIran

Nano cerium oxide films were applied on AA7020-t. aluminum alloy and t.e effect. of acet.c acid concent.at.on on t.e microst.uct.re and elect.ochemical propert.es of t.e coat.d samples were invest.gat.d by using scanning elect.on microscopy （SEM）, X-ray diffract.on （XRD）, and pot.nt.odynamic polarizat.on met.ods. It.has been found t.at.by increasing t.e acet.c acid/CeCl3·7H2O molar rat.o, high uniform and crack-free films wit. well-developed grains were obt.ined and grain sizes of t.e films decreased. Eliminat.on of cracks and decreasing grain size of t.e nano cerium oxide films caused corrosion resist.nce t. increase.

关键词： nano cerium oxide films acet.c acid aluminum alloy elect.ochemical propert. microst.uct.re

Nonlinear Behaviour of Coflexip Risers

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China Ocean Engineering 2001年第4期16卷 479-490页

作者： kamal Zare t. k. Dat.a Depart.ent.of Civil Engineering Indian Institute of Technology Hauzkhas New Delhi-110016 India Department of Civil Engineering Indian Institute of Technology Hauzkhas New Delhi-110016 India

A modified Newt.n-Raphson it.rat.ve t.chnique is formulat.d for obt.ining t.e st.t.c configurat.on of t.e Lazy 'S' flexible marine riser bet.een t.e float.r and mid-arch buoy under it. submerged self weight.and t.e applied t.p t.nsion. t.e geomet.ically non-linear problem is solved by finit. difference wit. t.e above t.chnique. t.e problem is formulat.d as a regular boundary value problem wit. specified moment. and deflect.ons at.bot. ends. Usually t.e bending st.ffness of t.e flexible riser made of Coflexip pipe is very low. By use of t.e above analysis, several flexible riser configurat.ons are analyzed and t.eir charact.rist.c behaviors are invest.gat.d. Also, changes in t.e riser charact.rist.cs due t. quasi-st.t.c mot.on of t.e float.r end are est.mat.d for t.e safet. of t.e riser layout.

关键词： lazy 'S' riser coflexip pipe flexible riser mid-arch buoy geomet.ic nonlinearily

t.e law as it.relat.s t. subsidence as a consequence of mining act.vit. in Brit.in

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中国有色金属学会会刊：英文版 2005年第S1期15卷 258-261页

作者： G. t. Powell k. Leighfield Universit. of Glamorgan Wales United KingdomUniversity of Glamorgan Wales United Kingdom

Subsidence as a consequence of mining act.vit. has been an onerous problem associat.d wit. mineral ext.act.on in Brit.in. Mining law as it.relat.s t. subsidence has developed over several cent.ries. t.is paper will out.ine t.e legal implicat.ons for mineral subsidence and compensat.on, considering bot. common law and st.t.t.. Part.cular reference is made t. t.e ext.act.on of coal, salt.in brine, prot.ct.on of public ut.lit.es, working facilit.es orders, ironst.ne and ancient.mining right..

关键词： subsidence compensat.on coal working facilit.es orders

Phot.cat.lyt.c degradat.on of Chicago Sky Blue 6B and Benzopurpurin 4B using t.t.nium dioxide t.in film

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Journal of Environment.l Sciences 2005年第5期17卷 869-872页

作者： Abdul k. Mohammed kat.ina t. Mckenzie Depart.ent.of Chemist.y Winston-Salem State UniversityDepartment of Chemistry North Carolina Agricultural and Technical State University 601 S. Martin Luther King Jr. Drive Winston-Salem North Carolina 27110 USA1601 E. Market Street Greensboro North Carolina 27411 USA

Aqueous solut.ons of azo dyes undergo degradat.on t. form harmless int.rmediat.s and colorless product. following irradiat.on by visible light.in t.e presence of t.t.nium dioxide t.in films. t.e dyes t.at.were st.died in t.is work are： Chicago Sky Blue 6B and Benzopurpurin 4B. Result. obt.ined indicat.d t.at.complet. mineralizat.on of t.e dyes t.ok place under t.e experiment.l condit.ons. t.ere was an increase in conduct.vit. aft.r t.e complet. mineralizat.on experiment. possibly indicat.ng t.e format.on of ions such as NO3^- and SO4^2-. Chemical oxygen demand（COD） measurement. show a decrease in organic mat.er for bot. dyes following complet. degradat.on. t.e effect.of how changing experiment.l condit.ons such as pH, t.mperat.re and st.rt.ng concent.at.ons of dyes affect.d t.e rat. of dye degradat.on was measured. t.ere was an increase in t.e rat. of disappearance of t.e dye color at.lower pH. High concent.at.ons of dye solut.ons reauired Iona dearadat.on t.me.

关键词： t.t.nium dioxide phot.cat.lysis phot.cat.lyt.c degradat.on azo dyes