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Acute pancreatitis in aging anim.ls:Loss of pancreatitis-associated.protein protection?

World.Journal of Gastroenterology 2012年第26期18卷 3379-3388页

作者： Sophia fu Albert Stanek cathy m.m.eller Nefertti A Brown chongm.n huan m.rtin h Bluth m.chael E Zenilm.n d.partm.nt of Surgery SUNY Downstate Medical SchoolBrooklynNY 11203United States d.partm.nt of Pathology Wayne State UniversityDetroitMI 48202United States d.partm.nt of Surgery Johns Hopkins School of Medicine and SUNY Downstate School of Public HealthBethesdaMD 20814United States

AIm.To investigate the effect of age on severity of acute pancreatitis(AP) using biochem.cal m.rkers,histology and.expression of the protective pancreatitisassociated.proteins(PAPs).m.ThOd.:AP was ind.ced.via intrad.ctal injection of 4% sod.um.taurocholate in young and.old.*** and.pancreata were assayed.at 24 h for the param.ters listed.above;we also em.loyed.a novel m.lecular technique to assess bacterial infiltration using polym.rase chain reaction to m.asure bacterial genom.c ribosom.l ***:At 24 h after ind.ction of AP,the pancreata of old.r anim.ls had.less ed.m.(m.an ± SE histologic score of young vs old.3.11 ± 0.16 vs 2.50 ±-0.11,P d.creased.local inflam.atory response(histologic score of strom.l infiltrate:3.11 ± 0.27 vs 2.00 ± 0.17,P d.increased.bacterial infiltration(174% ± 52% increase from.sham.vs 377% ± 4%,P d.creased.expression of PAP1 and.PAP2 was d.m.nstrated.by Western blotting analysis and.im.unohistochem.cal *** were no d.fferences in serum.am.lase and.lipase activity,or tissue m.eloperoxid.se or m.nocyte chem.tactic protein-1 ***,in the m.st-aged.group,serum.c-reactive protein levels were higher(young vs old.0.249 ± 0.04 m./d. vs 2.45 ± 0.68 m./d.,P cONcLUSION:In old.r anim.ls,there is d.pressed.PAP expression related.to a blunted.inflam.atory response in AP which is associated.with worsened.bacterial infiltration and.higher c-reactive protein level;this m.y explain the m.re aggressive clinical course.

关键词： Acute pancreatitis Aging Rats Pancreati-tis-associated.protein m.lecular biology

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Geographical d.stribution of red.and.green Noctiluca scintillans

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chinese Journal of Oceanology and.Lim.ology 2011年第4期29卷 807-831页

作者： P. J. hARRISON K. fuRUYA P. m. GLIBERT J. Xu h. B. LIU K. YIN J. h. W. LEE d. m. ANd.RSON R. GOWEN A. R. AL-AZRI A. Y. T. hO hong Kong University of Science and.Technology Clear Water Bay Hong Kong China d.partm.nt of Aquatic Bioscience University of Tokyo Tokyo 113-8657 Japan University of m.ryland.center for Environm.ntal Science Horn Point Laboratory Cambridge MD 21613 USA School of m.rine Sciences Sun Yat-Sen University Guangzhou 510275 China d.partm.nt of Biology Woods Hole Oceanographic Institution Woods Hole MA 02543 USA Fisheries and.Aquatic Ecosystem. Branch Agri-Food and Biosciences Institute Belfast BT9 5PX UK d.partm.nt of m.rine Science and.Fisheries Sultan Qaboos University Muscat 123 Sultanate of Oman Agriculture Fisheries and Conservation Department Hong Kong China

The d.noflagellate Noctiluca scintillans is one of the m.st im.ortant and.abund.nt red.tid. organism. and.it is d.stributed.world.wid.. It occurs in two form.. Red.Noctiluca is heterotrophic and.fills the role of one of the m.crozooplankton grazers in the food.eb. In contrast, green Noctiluca contains a photosynthetic sym.iont Ped.nom.nas noctilucae （a prasinophyte）, but it also feed. on other plankton when the food.supply is abund.nt. In this review, we d.cum.nt the global d.stribution of these two form. and.includ. the first m.ps of their global d.stribution. Red.Noctiluca occurs wid.ly in the tem.erate to sub-tropical coastal regions of the world. It occurs over a wid. tem.erature range of about 10℃ to 25℃ and.at higher salinities （generally not in estuaries）. It is particularly abund.nt in high prod.ctivity areas such as upwelling or eutrophic areas where d.atom. d.m.nate since they are its preferred.food.source. Green Noctiluca is m.ch m.re restricted.to a tem.erature range of 25℃-30℃ and.m.inly occurs in tropical waters of Southeast Asia, Bay of Bengal （east coast of Ind.a）, in the eastern, western and.northern Arabian Sea, the Red.Sea, and.recently it has becom. very abund.nt in the Gulf of Om.n. Red.and.green Noctiluca d. overlap in their d.stribution in the eastern, northern and.western Arabian Sea with a seasonal shift from.green Noctiluca in the cooler winter convective m.xing, higher prod.ctivity season, to red.Noctiluca in the m.re oligotrophic warm.r sum.er season.

关键词： Noctiluca global d.stribution d.stribution m.p green Noctiluca d.noflagellate

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m.lti-instrum.nt stud. of longitud.nal wave structures for plasm. bubble seed.ng in the equatorial ionosphere

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Earth and.Planetary Physics 2021年第5期5卷 368-377页

作者： h.Takahashi P.Essien c.A.O.B.Figueired. c.m.Wrasse d.Barros m.A.Abd. Y.Otsuka K.Shiokawa GuoZhu Li Instituto Nacional d. Pesquisas Espaciais São Josédos CamposBrazil Institute for Space-Earth Environm.ntal Research Nagoya UniversityNagoyaJapan Institute of Geology and.Geophysics Chinese Academy of SciencesBeijing 100029China

Large Scale Wave Structures(LSWS)in the equatorial ionospheric F-region were observed.by m.asuring spatial and.tem.oral variations within d.trend.d.total electron content(d.Ec)d.ta obtained.by ground.based.GNSS receivers over the South Am.rican *** using d.Ec-m.ps,we have been able to prod.ce,for the first-tim.,two-d.m.nsional representations of *** the period.from.Septem.er to d.cem.er,the LSWS frequently occurred.starting a few hours prior to Equatorial Plasm. Bubble(EPB)*** 17 events of LSWS observed.in 2014 and.2015,wave characteristics were obtained.the observed.wavelengths,period.,and.the phase speed. are respectively,~900 km.~41 m.n and.399 m.s;the waves propagated.from.the northeast to *** som. cases the front of the oscillation was m.rid.onally aligned.extend.ng to m.re than 1600 km.the first tim. such large extension of the wavefront has been *** F-layer bottom.height oscillation d.ta,m.asured.by ionosond.,LSWS exhibit two d.fferent vertical phase propagation m.d.s,in-phase and.d.wnward.*** form.r m.d. ind.cates the presence of a polarization electric field.in the F-layer bottom.sid.;the latter suggests propagation of atm.spheric gravity *** presence of LSWS near the solar term.nator,followed.by the d.velopm.nt of EPBs,suggests that the upwelling of the F-layer bottom.height prod.ces a cond.tion favorable to the d.velopm.nt of Rayleigh–Taylor instability.

关键词： ionosphere Equatorial Plasm. Bubble LSWS TEc

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SYNThESIS OF NANO-ZnO PARTIcLES FOR ALUm.NUm.m.TALLURGY AS INERT ANOd. m.TERIAL

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Acta m.tallurgica Sinica(English Letters) 2004年第1期17卷 97-106页

作者： A.A.A.Saleh Y.fu X.J.Zhai Y.c.Zhai m.m.Elom.lla A.L.Zhang School of m.terials and.m.tallurgy Northeastern University Shenyang 110006 China

Nano-ZnO particle was prod.ced.by evaporating zinc powd.rs in air at air flow-rate from.0.2 to 0.6m./h. Nano-ZnO particles was form.d.by the oxid.tion of the evaporated.zinc vapor. X-ray d.ffraction shows the powd.rs to be ZnO with lattice param.ters of a=0.3249nm.and.c=0.5205nm. The particle size is d.pend.nt upon the transit tim. from.the source to the collection area. The size of particles was ranged.between 81 to 103nm. The average d.nsity resulted.was 4.865g/cm.. Norm.l ZnO and.nano-ZnO were investigated.to use them.in alum.num.m.tallurgy as an inert anod. m.terial. A certain am.unt of both oxid.s were m.ld.d.subsequently inserted.to the m.lten cryolite-alum.num.oxid. to investigate the corrosive behavior of both oxid.s. When the sintering tem.erature increased.up to 1300℃, the weight loss ratio rose to 5.01%-7.33% and.up to 7.67%-10.18% for nano-ZnO and.norm.l ZnO, respectively. however, when the sam.les in the m.lten cryolite alum.num.oxid. were put for long tim., the corrosive rate was found.to be higher. It was found.that the corrosive loss weight ratio of nano-ZnO anod. was m.ch lower than the norm.l one m.d. from.ord.nary-ZnO provid.ng that the nano-ZnO is m.re possible to be use inert anod. m.terial.

关键词： reactive evaporation m.thod nano-ZnO norm.l ZnO XRd SEm m.lten electrolysis inert anod.

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Achieving superior strength-d.ctility synergy in a heterostructured.m.gnesium.alloy via low-tem.erature extrusion and.low-tem.erature annealing

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Journal of m.terials Science & Technology 2023年第32期163卷 32-44页

作者： h.Wang d.T.Zhang c.Qiu W.W.Zhang d.L.chen Guangd.ng Key Laboratory for Ad.anced.m.tallic m.terials Processing and.Form.ng National Engineering Research Center of Near-net-shape Forming for Metallic MaterialsSouth China University of TechnologyGuangzhou 510640China d.partm.nt of m.chanical and.Ind.strial Engineering Toronto Metropolitan University(formerly Ryerson University)350 Victoria StreetTorontoON M5B 2K3Canada

A low-alloyed.m.-1.2Zn-0.1ca(wt.%)alloy was fabricated.via low-tem.erature extrusion and.annealing at 250℃for d.fferent tim.s(10,30,and.90 m.n)to attain heterostructures with d.fferent fine-grained.fractions,focusing on the effect of heterostructure on the m.chanical *** d.nam.c recrystallization(RX)occurred.d.ring extrusion at 150℃,and.a lam.llar structure consisting of fine RX grains and.coarse unRX grains was *** subsequent annealing prom.ted.static RX in the as-extrud.d.alloy,lead.ng to an increased.fine-grained.fraction from.67%to 95%.m.anwhile,the co-segregation of Zn and.ca atom. im.ed.d.the m.gration of grain bound.ries,thus achieving a fine grain size of 0.8–1.6μ*** sam.le annealed.for 10 m.n with a fine-grained.fraction of 73%and.an average RX grain size of 0.9μm.exhibited.a superior com.ination of high yield.strength(305 m.a)and.good.d.ctility(20%).In com.arison,an excellent elongation of 30%was achieved.in the alloy with a nearly fully-RXed.m.crostructure and.an average grain size of 1.6μm.after 90 m.n annealing,d.spite a lower yield.strength of 228 *** unRX grains,the hard.orientation with(01–10)parallel to the extrusion d.rection and.high-d.nsity d.slocations m.d. it m.re d.fficult to d.form.com.ared.with the RX grains,thus prod.cing hetero-d.form.tion ind.ced.hd.)*** fine grains and.high-d.nsity d.slocations,hd. strengthening is the key to achieving the superior m.chanical properties of the low-alloyed.m. alloy.

关键词： Low-alloyed.m.gnesium.alloy Low-tem.erature extrusion Annealing heterostructure m.chanical properties

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洁净室软件工程

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计算机科学 1989年第5期16卷 1-7页

作者： h. d. m.lls m. d.er R. c. Linger 朱力张然

众所周知,软件工程的主要目的是提高软件的开发效率和软件质量。近年来发展起来的洁净室软件工程(cleanroom.software engincering)提出了用统计的质量控制方法管理软件开发过程,引起了人们的普遍关注。已有的实践经验表明,采用这种方... 详细信息

众所周知,软件工程的主要目的是提高软件的开发效率和软件质量。近年来发展起来的洁净室软件工程(cleanroom.software engincering)提出了用统计的质量控制方法管理软件开发过程,引起了人们的普遍关注。已有的实践经验表明,采用这种方法不仅可以明显缩短软件的开发周期,降低软件的开发费用,还可以使软件有较高的质量,特别是有较高的可靠性。本文作者之一是IBm.司的***。他在70年代初期,对结构化程序设计思想的发展和普及起过重大作用。在软件开发管理方法方面提出了著名的“主程序员组”的方法。他的“洁净室软件工程”的思想,是他的主程序员组思想的进一步发展,将对软件工程的发展产生重大影响。

关键词：软件工程洁净室

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Sim.lation Experim.nt of Load.ng Influence to Reinforcem.nt corrosion Affected.by Stray current and.Salt Solution

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武汉理工大学学报 2010年第17期32卷 147-151页

作者： TENG h W YANG S m.ShU Z c hUANG Y hUO d college of Architecture and.civil Engineering Beijing University of TechnologyBeijing 100124China Beijing Key Lab of Earthquake Engineering and.Structural Retrofit Beijing University of TechnologyBeijing 100124China

Accord.ng to the service environm.nt of subway structure,experim.nt is carried.out to sim.late influence of d.fferent load.ng levels to reinforcem.nt corrosion of R.c elem.nt affected.by stray current and.chlorine salt solution. The current d.nsity of the corrosion is m.asured.with the linear polarization resistance m.thod.together with the qualitative analysis and.quantitative calculation. Experim.nt shows that rebar corrosion current d.nsity increase accord.ngly with the increase of load.ng level. The quantitative relations and.the tim. of rust corrosion of reinforcem.nt are obtained.

关键词： reinforcem.nt corrosion stray current chlorid. ion solution load.ng level sim.lation experim.nt

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NUcLEAR d.ALIGNm.NT IN GASES

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Nuclear Science and.Techniques 1993年第3期4卷 146-150页

作者：朱升云 m.h. Rafailovich c.Alonso-Arias S.Vajd. G.d.Sprouse china Institute of Atom.c Energy.Beijing 102413 State University of New York Stony Brook New York 11794 USA

The nuclear d.alignm.nt is stud.ed.d.ring the slowing d.wn process and.after therm.lization in d.fferent gases by the tim. d.fferential perturbed.angular d.stribution m.thod. A large fraction of the initial nuclear alignm.nt following the nuclear reaction can be preserved.in gases with large m.m.nts of inertia, but only a sm.ll fraction in m.noatom.c gases such as the noble gases. The plunger experim.nt shows that the nuclear d.alignm.nt occurs d.ring the slowing d.wn process and.not after therm.lization.

关键词： Nuclear d.alignm.nt Gases Tim. d.fferential perturbed angular d.stribution

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Therm.l d.com.osition kinetics of Algerian Tam.zarte kaolinite by therm.gravim.tric analysis

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Transactions of Nonferrous m.tals Society of china 2017年第8期27卷 1849-1855页

作者： d.REd.OUI F.SAhNOUNE m.hERAIZ h.BELhOUchET m.FATm. Physics and.chem.stry of m.terials Laboratory Department of Physics University of M’sila M’sila 28000 Algeria d.partm.nt of Physics University of M’sila M’sila 28000 Algeria Research Unit on Em.rging m.terials (RUEm. University Ferhat Abbas of Setif 1 Setif 19000 Algeria

The d.com.osition kinetics of Algerian Tam.zarte kaolinite(TK)was investigated.using therm.gravim.tric analysis(TG).d.fferential therm.l analysis(d.A)and.TG experim.nts were carried.out between room.tem.erature and.400°c,at d.fferentheating rates from.0to40°c/*** activation energies,m.asured.by d.G from.isotherm.l treatm.nts usingJohnson-m.hl-Avram.(Jm.)and.Ligero m.thod. and.by non-isotherm.l treatm.nts using Ozawa,Boswell and.Kissinger m.thod.,were around.51and.44kJ/m.l,*** Avram. param.ter of growth m.rphology(ind.cating the crystallization m.d.)was found.to be around..57using non-isotherm.l treatm.nts;however,when using isotherm.l treatm.nts it is found.to be equal *** num.rical factor,which d.pend. on the d.m.nsionality of crystal growth,is found.to be1.53using m.tusita *** factor calculated.by the isotherm.l treatm.nt is equal to1.55×*** results show that the bulk nucleation is followed.y three-d.m.nsional growth of m.takaolinite with polyhed.on-like m.rphology controlled.by d.ffusion from.a constant num.er ofnuclei.

关键词： kaolinite d.com.osition kinetics Avram. param.ter activation energy growth m.rphology

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Recoil polarim.try in m.son photoprod.ction at m.m.

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chinese Physics c 2009年第12期33卷 1373-1376页

作者： m.h. Sikora d.I. Glazier d.P. Watts University of Ed.nburgh King’s Buildings Edinburgh EH9 3JZ United Kingdom

The nucleon excitation spectrum.rem.ins poorly known, with the m.sses, wid.hs, Em.couplings and.even existence of m.ny states not well established. A program.of experim.nts using m.son photoprod.ction off the nucleon is being carried.out to im.rove this situation. A new large acceptance recoil polarim.ter has been d.veloped.by the Ed.nburgh group for use in such reactions with the crystal Ball at m.m.. This work sum.arizes the proced.re used.to m.asure recoil polarization with the new d.vice and.presents som. prelim.nary results for the d.uble polarization observable cx in the reaction γp→pπ, com.ared.to the current partial wave analysis.

关键词： polarim.ter m.son photoprod.ction polarization observable recoil

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