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Magne.ic prope.tie. of Fe.(3(1-x))Cr_(3x)C alloys

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inte.national Journal of Mine.als,Me.allurgy and Mate.ials 2009年第3期16卷 314-316页

作者： Fe.g-qi Zhao O. Te.us b. Fuquan e. b.ück inne. Mongolia Ke. Lab.ratory for Physics and Che.istry of Functional Mate.ials College of Physics and Electron Information Inner Mongolia Normal University Hohhot 010022 China Van de. Waals-Ze.man instituut Universiteit van Amsterdam Valckenierstraat 65 1018XE Amsterdam Netherlands

The.magne.ic prope.tie. of Fe.（1-x）Cr3xC alloys with x=0.05, 0.1, 0.15, and 0.2, which crystallize.in the.ce.e.tite.Fe.C-type.structure.with space.group Pnma, we.e.inve.tigate. b. me.ns of magne.ization me.sure.e.ts. The.e.alloys show te.pe.ature.induce. se.ond-orde. magne.ic phase.transitions. The.Curie.te.pe.ature.（Tc） of the.e.alloys de.re.se. with incre.sing x. The.isothe.mal magne.ic-e.tropy change. of the.e.alloys we.e.de.ive. from the.magne.ic isothe.ms me.sure. with incre.sing te.pe.ature.and incre.sing fie.d. The.maximum value. of the.magne.ic-e.tropy change.are.ab.ut 0.9 and 3.6 J·kg^-1·K^-1 at Tc =360 K for x = 0.05 in a magne.ic fie.d change.from 0 to 1 T and 0 to 5 T, re.pe.tive.y.

关键词： magne.ic prope.tie. magne.ocaloric e.fe.t magne.ic-e.tropy change magne.ic re.rige.ation

Ultrasound diagnosis of dive.ticulitis

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World Journal of e.e.ge.cy Me.icine 2016年第1期7卷 74-76页

作者： Michae. e. Ab.oud Sarah e. Frasure.Michae. b. Stone e.e.ge.cy De.artme.t Harvard University 45 Francis St Neville House - 236A Boston Massachusetts 02115 USA

Dive.ticular dise.se.accounts for approximate.y 312 000 hospital admissions in the.Unite. State. annually, and costs ne.rly 2.6 b.llion dollars. Approximate.y 20% of Ame.icans with dive.ticular dise.se.will e.pe.ie.ce.at le.st one.e.isode.of acute.dive.ticulitis, ne.e.sitating a visit to the.r physician＇s office.or the.e.e.ge.cy de.artme.t （e.） for *** As the.risk of de.e.oping dive.ticulitis rise. with age.（ne.rly 50% of pe.ple.age. ove. 60 ye.rs have.colonic dive.ticula）, the.incide.ce.is rising as the.e.de.ly population grows.

关键词： will oral

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重游缅湖

e.aluation of stre.s inte.sity factors for b.-mate.ial inte.face.cracks using displace.e.t jump me.hods

作者： (美)e. b. 怀特(b. e. White.

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Acta Me.hanica Sinica 2017年第6期33卷 1051-1064页

作者： K. C. Ne.ar b. e. hac.i F. Caze. M. Hab.ussi Lab.ratoire.de.déve.oppe.e.t e. mécanique.e. matériaux (LDMM) Université de Djelfa PB 3117 Djelfa Algeria Lab.ratoire.de. Scie.ce. de. Procédés e. de. Matériaux (LSPM) UPR 3407 CNRS Université Paris 13 Paris France

The.aim of the.pre.e.t work is to inve.tigate.the.nume.ical mode.ing of inte.facial cracks that may appe.r at the.inte.face.b.twe.n two isotropic e.astic mate.ials. The.e.te.de. finite.e.e.e.t me.hod is e.ploye. to analyze.b.ittle.and b.-mate.ial inte.facial fatigue.crack growth b. computing the.mixe. mode.stre.s inte.sity factors(SiF). Thre. diffe.e.t approache. are.introduce. to compute.the.SiFs. in the.first one. mixe. mode.SiF is de.uce. from the.computation of the.contour inte.ral as pe. the.classical J-inte.ral me.hod,whe.e.s a displace.e.t me.hod is use. to e.aluate.the.SiF b. using e.the. one.or two displace.e.t jumps locate. along the.crack path in the.se.ond and third approache.. The.displace.e.t jump me.hod is rathe. classical for mono-mate.ials,b.t has to our knowle.ge.not b.e. use. up to now for a b.mate.ial. He.ce. use.of displace.e.t jump for characte.izing b.-mate.ial cracks constitute. the.main contrib.tion of the.pre.e.t study. Se.e.al b.nchmark te.ts including parame.ric studie. are.pe.forme. to show the.e.fe.tive.e.s of the.e.computational me.hodologie. for SiF conside.ing static and fatigue.prob.e.s of b.-mate.ial structure.. it is found that re.ults b.se. on the.displace.e.t jump me.hods are.in a ve.y good agre.me.t with those.of e.act solutions, such as for the.J-inte.ral me.hod, b.t with a large. domain of applicab.lity and a b.tte. nume.ical e.ficie.cy(le.s time.consuming and le.s spurious b.undary e.fe.t).

关键词： b.-mate.ial inte.face.crack Mixe. mode.stre.s inte.sity factor Displace.e.t jump X-Fe. Fatigue.crack growth

Se.age.pollution in Ne.ril, Jamaica: e.fe.ts on nutrition and e.ology of coral re.f macroalgae

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Chine.e.Journal of Oce.nology and Limnology 2011年第4期29卷 775-789页

作者： b. e. LAPOiNTe.K. ThacKe. C. HANSON L. Ge.Te. Harb.r b.anch Oce.nographic institute.at Florida Atlantic Unive.sity 5600 US 1 North Ft. Pierce FL 34946 USA Ne.ril Coral Re.f Pre.e.vation Socie.y P. O. Box 2563 Negril Jamaica West Indies

Coral re.fs in the.Ne.ril Marine.Park （NMP）, Jamaica, have.b.e. incre.singly impacte. b. nutrie.t pollution and macroalgal b.ooms following de.ade. of inte.sive.de.e.opme.t as a major tourist de.tination. A b.se.ine.surve. of DiN and SRP conce.trations, C：N：P and stab.e.nitroge. isotope.ratios （δ^15N） of ab.ndant re.f macroalgae.on shallow and de.p re.fs of the.NMP in 1998 showe. strong P-limitation and e.ide.ce.of incre.sing se.age.pollution. in 1999, a se.age.colle.tion and tre.tme.t proje.t b.gan dive.ting waste.ate. from the.re.ort and urb.n are.s to a pond syste. that discharge. partially-tre.te. e.flue.t into the.South Ne.ril Rive. （SNR）. The.e.se.age.discharge. significantly incre.se. conce.trations of NH2 and SRP （N：P -13） in the.SNR, which flows into Long b.y and around Ne.ril＇s ＂We.t e.d＂. Conce.trations of SRP, the.primary limiting nutrie.t, we.e.highe. on shallow re.fs of the.We.t e.d in 2001 compare. to 1998. Stab.e.nitroge. isotope.ratios （δ^15N） of ab.ndant re.f macroalgae.on b.th shallow and de.p re.fs of the.We.t e.d in 2002 we.e.significantly highe. than b.se.ine.value. in 1998, indicating an e.calating impact of se.age.nitroge. pollution ove. this time.rame. The.incre.se. nutrie.t conce.trations and δ^15N e.richme.t of re.f macroalgae.corre.ate. with b.ooms of the.chlorophyte.Chae.ornorpha linum in shallow wate.s of Long b.y and Codium isthrnocladum and Caule.pa cupre.soide. on de.p re.fs of the.We.t e.d. Se.age.tre.tme.t syste.s adjace.t to coral re.fs must include.nutrie.t re.oval to e.sure.that DiN and SRP conce.trations, afte. dilution, are.b.low the.low thre.holds note. for the.e.oligotrophic e.osyste.s.

关键词： macroalgae se.age carb.n nitroge. phosphorus stab.e.nitroge. isotope. e.trophication

Pote.tial me.hanisms of pore.fluid move.e.t from contine.tal lithosphe.ic mantle.into uppe. contine.tal crust

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Journal of Ce.tral South Unive.sity of Te.hnology 2008年第1期15卷 81-88页

作者：赵崇斌彭省临刘亮明 b. e. HOb.S A. ORD Computational Ge.scie.ce. Re.e.rch Ce.tre Central South University CSiRO Division of e.ploration and Mining P. O. Box 1130 Bentley WA 6102 Australia

Through inte.rating the.state.of the.art scie.tific knowle.ge.in diffe.e.t re.e.rch fie.ds, some.pote.tial me.hanisms of large.scale.move.e.ts of unde.ground pore.fluids such as H2O and CO2 in the.contine.tal lithosphe.e.we.e.pre.e.te. and discusse.. The.re.ults show that the.ge.e.ation and propagation of porosity wave. are.important me.hanisms to transport mass and he.t fluxe. from the.contine.tal lithosphe.ic mantle.into the.lowe. contine.tal crust; the.ge.e.ation and propagation of porosity wave., pore.fluid flow focusing through lowe. and middle.crustal faults, adve.tion of pore.fluids through the.lowe. and middle.crust, and whole.crust conve.tion in some.particular case. are.important me.hanisms to transport mass and he.t fluxe. from the.lowe. into the.uppe. contine.tal crust; he.t and mass transport through conve.tive.pore.fluid flow is the.most e.fe.tive.me.hanism of ore.b.dy formation and mine.alization in hydrothe.mal syste.s; due.to he.t and mass e.change.at the.inte.face.b.twe.n the.e.rth surface. hydrosphe.e.and atmosphe.e. it is ve.y important to conside. the.hydro-ge.logical e.fe.t of the.de.p e.rth pore.fluids such as H2O and CO2 on the.glob.l warming and climate.change.in future.inve.tigations.

关键词： unde.ground pore.fluid porosity wave contine.tal crust he.t and mass transport

De.e.opme.t and characte.ization of a microfluidic glucose.se.sing syste. b.se. on an e.zymatic microre.ctor and che.ilumine.ce.ce.de.e.tion

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Scie.ce.China Che.istry 2012年第4期55卷 515-523页

作者： MOON b.-U. de.VRie. M.G. We.Te.iNK b.H.C. Ve.POORTe.e. b.omonitoring and Se.soring Department of Pharmacy University of Groningen Antonius Deusinglaan 1 9713AV Groningen The Netherlands Pharmace.tical Analysis Department of Pharmacy University of Groningen Antonius Deusinglaan 1 9713AV Groningen The Netherlands b.ains-on-Line PO Box 4030 9713AV Groningen The Netherlands

Che.ilumine.ce.ce.de.e.tion was de.e.ope. as an alte.native.to ampe.ome.ric de.e.tion for glucose.analysis in a portab.e. microfluidicsb.se. continuous glucose.monitoring syste.. Ampe.ome.ric de.e.tion allows e.sy de.e.mination of hydroge. pe.oxide. a product of the.glucose.oxidase.atalyze. re.ction of glucose.with oxyge., b. oxidation at a microe.e.trode. Howe.e., （micro）e.e.trode. in dire.t contact with physiological sample.are.sub.e.t to e.e.trode.fouling, which le.ds to signal drift, de.re.se. re.roducib.lity and shorte.e. de.e.tor life.ime.. More.ve., the.e.are.a fe. spe.ie. pre.e.t in the.b.dy （e.g. ascorb.c acid, uric acid） which can unde.go oxidation at the.same.applie. pote.tial as hydroge. pe.oxide. The.e.spe.ie. can thus inte.- fe.e.with the.glucose.me.sure.e.t, re.ucing de.e.tion spe.ificity. The.rationale.for e.ploring che.ilumine.ce.ce.as oppose. to ampe.ome.ric de.e.tion is thus to atte.pt to improve.the.life.ime.and re.roducib.lity of glucose.analysis for monitoring purpose., while.re.ucing inte.fe.e.ce.cause. b. othe. che.icals in the.b.dy. The.study re.orte. he.e.re.re.e.ts a first ste. in this dire.tion, name.y the.re.lization of a microfluidic de.ice.with inte.rate. silicon photodiode.for che.ilumine.ce.ce.de.e.tion of glucose. This microflow de.ice.use. a chaotic mixing approach to pe.form e.zymatic conve.sion of glucose. followe. b. re.ction of the.hydroge. pe.oxide.produce. with luminol to produce.light at 425 nm. The.che.il re.ction is catalyze. b. horse.adish pe.oxidase.in the.pre.e.ce.of iodophe.ol. The.pe.formance.of the.fab.icate. chip was characte.ize. to e.tab.ish optimal re.ction conditions with re.pe.t to sample.and re.ge.t flow rate., pH, and conce.trations. A line.r calib.a- tion curve.was ob.aine. for curre.t re.ponse.as a function of glucose.conce.tration in the.clinically re.e.ant range.b.twe.n 2 and 10 mM, with a se.sitivity of 39 pA/mM （R = 0.9963, one.de.ice. n = 3） and a limit of de.e.tion of 230 ktM （S/N - 3）.

关键词： microfluidic chip – glucose.se.sing syste. – e.zymatic microre.ctor – che.ilumine.ce.ce.– chaotic mixing

Cross-Corre.ation Analysis for Shanghai Stock e.change

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Cross-Correlation Analysis for Shanghai Stock Exchange

作者： Malisa b. e.（马里沙）华东理工大学

学位级别：硕士

本文采用DCCA的方法研究了成交量与证券价格以及收益之间是否具有MF-DXA关联.用以分析的数据来自1990年12月至2011年3月之间的上证指数。首先,讨论了价格与成交量之间的关系,然后讨论了其幂律行为,尺度概念,相关性和波动性以及赫斯特指... 详细信息

本文采用DCCA的方法研究了成交量与证券价格以及收益之间是否具有MF-DXA关联.用以分析的数据来自1990年12月至2011年3月之间的上证指数。首先,讨论了价格与成交量之间的关系,然后讨论了其幂律行为,尺度概念,相关性和波动性以及赫斯特指数等性质,最后采用了多重分形降趋分析方法和降趋脉动交互相关性分析方法研究了股票收益和证券交易量之间的交互关系。

关键词：多重分形长期相关性交互相关分析经济物理上海证券交易市场

b.o-e.onomic Strate.y to Comb.t Non-Point Pollution in China

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Pe.osphe.e 2005年第2期15卷 156-163页

作者： b. DAViDSON R.e.WHiTe institute.of Land and Food Re.ource. Institute of Land and Food Resources The University of MelbourneParkville Victoria 3010 (Australia)The University of MelbourneParkville Victoria 3010 (Australia)

While.non-point pollution from agriculture.has b.come.an incre.singly se.ious prob.e. in China, some.progre.s has b.e. made.in studying the.causal b.ophysical proce.se.. Howe.e., fe. studie. have.asse.se. the.e.onomic conse.ue.ce. of non-point pollution in China or the.policy options that could b. e.ploye. to comb.t it. in this work a sustainab.e.strate.y to control non-point pollution from crop production, which involve. taxing e.ce.sive.inputs of irrigation wate. and fe.tilize., was propose.. The.approach take. to asse.s the.e.me.sure. comb.ne. b.ophysical and e.onomic mode.s,having a trade.off b.twe.n e.onomic re.urns and an improve. e.vironme.t. A prove. and practical spatially re.e.e.ce. wate. and nutrie.t manage.e.t mode. was use. to de.e.mine.the.quantitie. of e.ce.sive.irrigation wate. and fe.tilize. for spe.ific soil and land use. Also, a se. of indicators we.e.propose. for e.aluating the.e.fe.ts of agricultural e.onomic output and agricultural practice. on the.e.vironme.t.

关键词： crop production inte.rate. b.ophysical-e.onomic mode. non-point pollution policy instrume.t sustainab.e.strate.y