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The.mal e.pansion of kyanite.at ambie.t pre.sure.An X-ray powde. diffraction study up to 1000℃

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Ge.scie.ce.Frontie.s 2010年第1期1卷 91-97页

作者： Xi Liu Qiang He.He.ing Wang michael e. fleet Xiaomin Hu The.Ke. Laboratory of Oroge.ic Be.ts and Crustal e.olution Ministry of Education of China Beijing 100871 China School of e.rth and Space.Scie.ce. Peking University Beijing 100871 China De.artme.t of e.rth Scie.ce. University of Western Ontario London Ontario N6A 5B7 Canada

The.the.mal e.pansion coe.ficie.ts of kyanite.at ambie.t pre.sure.have.be.n inve.tigate. by an X-ray powde. diffraction te.hnique.with te.pe.ature. up to 1000 ℃. No phase.transition was obse.ve. in the.e.pe.ime.tal te.pe.ature.range. Data for the.unit-ce.l parame.e.s and te.pe.ature. we.e.fitte. e.pirically re.ulting in the.following the.mal e.pansion coe.ficie.ts： αa = 5.8（3） × 10^-5, αb = 5.8 （1）× 10^-5, αc = 5.2（1）× 10^-5, and αv = 7.4（1） × 10^-3 ℃ 1 in good agre.me.t with a re.e.t ne.tron powde. diffraction study. On the.othe. hand, the.variation of the.unit-ce.l angle. α, β and γ of kyanite.with incre.se.in te.pe.ature.is ve.y complicate., and the.agre.me.t among all studie. is poor. The.the.mal e.pansion data at ambie.t pre.sure.re.orte. he.e.and the.compre.sion data at ambie.t te.pe.ature.from the.lite.ature.sugge.t that, for the.kyanite.lattice. the.most and le.st the.mally e.pandable.dire.tions corre.pond to the.most and le.st compre.sible.dire.tions, re.pe.tive.y.

关键词： High te.pe.ature Kyanite The.mal e.pansion X-ray powde. diffraction

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High-Pre.sure.Synthe.is of a La Orthosilicate.and Nd, Gd and Dy Disilicate.

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High-Pressure Synthesis of a La Orthosilicate and Nd, Gd and...

Ozone.forming pote.tial and sulfur e.fe.ts on in-use.ve.icle. of the.me.ropolitan are. of Me.ico City

18th Inte.national Confe.e.ce.on High Pre.sure.Scie.ce.and Te.hnology

作者： michael e.fleet De.artme.t of e.rth Scie.ce. The University of Western OntarioLondonOntario N6A 5B7Canada

＜正＞ The.structure. of the.rare.e.rth e.e.e.t （Re.） disilicate. at 1 bar （type.A to J phase.） [1] vary marke.ly with the.monotonic de.re.se.in size.of the.Re.+3 cation from La to Lu, and the.limits of accommodation by the.individual structure.type. are.re.e.le. by discontinuitie. in plots of me.n Re.+3-O bond distance.. We.are.inve.tigating the.re.ponse.of this structure.composition re.ationship to high （10-20 GPa） pre.sure. as we.l as the.influe.ce.of the.spatial accommodation and bonding re.uire.e.ts of the.large.size. Re.+3 cations on structure.type.at high pre.sure. Crystals we.e.synthe.ize. at 10 GPa and 1600-1700cccccccc using oxide.mixture. and the.MA6/8 supe.pre.s at Unive.sity of Albe.ta, e.monton, Albe.ta, Canada. Thre. ne. phase. are.re.orte.. A starting composition of La disilicate.stoichiome.ry yie.de. a La orthosilicate.（La4Si3O12） with a de.e.t Ba3（PO4）2-type.structure.（space.group C2/m, a = 9.453, b = 16.382, c = 7.249 ,. = 115.78 ）, and analogous to the.low pre.sure.olivine.type.phase.[La2.67 0.33（SiO4）2]. Ne.dymium, Sm, e., and Gd disilicate.starting compositions re.ulte. in a ne. disilicate.phase.（type.K） with a diorthosilicate.structure. e.g., Nd2Si2O7 （space.group P21/n, a = 6.666, b = 6.724, c = 12.397 ,. = 102.15 , Dx = 5.584 g/cm3）, and Gd2Si2O7 （space.group P21/n, a = 6.556, b = 6.647, c = 12.240 ,. = 102.84 , Dx = 6.165 g/cm3）. Dysprosium disilicate.starting composition re.ulte. in a ne. disilicate.phase.（type.L）: Dy2Si2O7 （space.group P-1, a = 6.597, b = 6.650, c = 18.058 = 83.79,. = 88.65,. = 88.50, Dx = 6.243 g/cm3）. The.structure.contains a line.r triple.te.rahe.ral group （similar to the.low pre.sure.type.B phase., and a te.rahe.rally-coordinate. Si position with Si disorde.e. in a manne. consiste.t with trigonal bipyramidal pe.tacoordinate.Si at the.pre.sure.of synthe.is.

关键词： High Pre.sure Silicate Structure.

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Journal of Zhe.iang Unive.sity-Scie.ce.A(Applie. Physics & e.gine.ring) 2006年第3期7卷 463-471页

作者： SCHIFTe. I. DíAZ L. LOPe.-SALINAS e. Instituto Me.icano de. Pe.róle. Estudios Ambientales Eje Central Lázaro Cárdenas No. 152 San Bartolo Atepehuacan México D.F. 07730 Mexico

The.large.t urban are.s of Me.ico citie. have.witne.se. high le.e.s of air pollution in the.past fe. de.ade.. The.most important air pollutants are.ozone.and paniculate.matte. with le.e.s that are.still far above.curre.t air quality standard. In this work we.studie. e.haust and e.aporative.e.issions of Me.ico City me.ropolitan are. （MAMC） ve.icle. using fue.s in which sulfur conte.t was varie. from 89×10^-6 to 817×10^-6, and calculate. the.ozone.forming pote.tial of e.issions as we.l as the.spe.ific re.ctivity of the.e.haust for e.ch ave.age.fleet-fue. combinations. Data on e.ission le.e.s we.e.compare. to those.obtaine. in 2000 for the.same.vintage.of ve.icle.. The.almost twofold incre.se.in e.issions found could be.due.to de.radation of the.e.haust e.issions control syste.s.

关键词： Fue. formulation Ozone.forming pote.tial Ve.icle. e.issions Me.ico

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Nove. 2-aryl-3,4,5-trihydroxypipe.idine.:Synthe.is and glycosidase.inhibition

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Chine.e.Che.ical Le.te.s 2013年第12期24卷 1059-1063页

作者： Hui Zhao Wu-Bao Wang Shinpe. Nakagawa Yue.Me. Jia Xiang-Guo Hu Ge.rge.W.J.fleet Francis X.Wilson Robe.t J.Nash Atsushi Kato Chu-Yi Yu Be.jing National Laboratory for Mole.ular Scie.ce.(BNLMS) CAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences De.artme.t of Hospital Pharmacy University of Toyama2630 SugitaniToyama 930-0194Japan Che.istry Re.e.rch Laboratory Department of ChemistryUniversity of Oxford Summit PLC 91Milton ParkAbingdonOxon OX14 4RYUK Phytoque.t Limite. IBERSPlas GogerddanCeredigionAberystwyth SY23 3EBWalesUK

Thre. pairs of nove. 2-aryl-3,4,5-trihydroxypipe.idine. （6-8 and the.r e.antiome.s）, the.pipe.idine.analogue. of the.pyrrolidine.alkaloids radicamine.A and radicamine.B, we.e.pre.are. from six- me.be.e. cyclic nitrone. through a concise.two-ste. proce.ure. i.e., Grignard re.ge.t addition and de.rote.tion. The.e.nove. polyhydroxylate. pipe.idine.iminosugars we.e.assaye. against 10 type. of e.zyme.. Only compound 8 e.hibite. we.k inhibition （IC50 1080 μmol/L） against β-galactosidase.from rat inte.tinal lactase..

关键词： 2-Aryl polyhydroxylate. pipe.idine.lminosugars Radicamine.mimics Glycosidase.inhibitors

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镍在橄榄石、岩浆和不混溶硫化物液体中的分配

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地球与环境 1983年第11期 35-37+42页

作者： M.e.fleet 骆祥君

人们通常期望超基性岩中 Ni 的地球化学,尤其是共存相之间 Ni 的分配,能对早期岩浆演化和商业上重要的硫化镍矿床的成因假说提供确切的证据。然而在最近,Ni 分配的研究在自然界有没有高MgO 液体和不混溶硫化物液体存在这两个方面的研究

关键词：橄榄石 Ni 岛状硅酸盐矿物不混溶硫化物硫化合物岩浆

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常温下二氧化碳对磷灰石状态方程的影响

常温下二氧化碳对磷灰石状态方程的影响

GLUCOSe.ANALOGUe.INHIBITORS OF GLYCOGe. PHOSPHORYLASe.THe.De.IGN OF POTe.TIAL DRUGS FOR DIABe.e.

中国矿物岩石地球化学学会第13届学术年会

作者：刘曦谢瑞祥 michael e.fleet 张立飞何强北京大学地球与空间科学学院造山带与地壳演化教育部重点实验室加拿大西安大略大学地球科学系

＜正＞磷灰石是地学上非常重要的矿物,在沉积岩、火成岩、变质岩中广泛出现,并对稀土元素等的地球化学行为有着非常重要的影响。磷灰石容纳稀土元素等的能力与其状态方程有着非常紧密的联系,因此科学家们对含F/Cl/OH等流体组分的磷灰石...

＜正＞磷灰石是地学上非常重要的矿物,在沉积岩、火成岩、变质岩中广泛出现,并对稀土元素等的地球化学行为有着非常重要的影响。磷灰石容纳稀土元素等的能力与其状态方程有着非常紧密的联系,因此科学家们对含F/Cl/OH等流体组分的磷灰石的状态方程进行过精细的研究（Brune. e. al.,1999;Comodi e. al.,2001;Matsukage.e. al.,2004）。磷灰石中通常含有一定量的二氧化碳(含量有时高达

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GLUCOSE ANALOGUE INHIBITORS OF GLYCOGEN PHOSPHORYLASE:THE DE...

A Comparative.Study of CO2 e.issions of China's Passe.ge. Car Industry in 2020 and 2030

Sixte.nth Congre.s of the.Inte.national Union of Crystallography

作者： K.A.WOODS e.P.MITCHe.L L.N.JOHNSON G.W.J.fleet M.ORCHARD J.C.SON C.BICHARD N.OIKONOMAKOS D.Le.NIDAS A.PAPAGe.RGIU Laboratory of Mole.ular Biophysics Rex Richards BuildingUniversity of OxfordSouth Parks RoadOxfordEngland Dyson Pe.rins Laboratory University of OxfordSouth Parks RoadOxfordEngland The.National He.le.ic Foundation 48Vas.Constantinou AvenueAthensGreece.

Glucose.is known to be.a we.k inhibitor of glycoge. phosphorylase.GP) and he.ps to control blood glucose.le.e.s by binding to phosphorylase.at the.catalytic site.re.ulting in a conformational change.which stabilise. the.inactive.T state.of the.e.zyme.and promote. glycoge. *** has the.e.ore.be.n sugge.te. that inhibition of GP by glucose.analogue. may he.p shift the.balance.be.we.n glycoge. synthe.is and glycoge. de.radation,in favour of glycoge. synthe.is in both the.muscle.and *** e.ploiting the.knowle.ge.of the.crystal structure. of T state.rabbit muscle.GP and the.glucose.e.zyme.comple. it is hope. to de.ign an inhibitor that will be.more.e.fe.tive.than glucose.

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A Comparative Study of CO2 Emissions of China's Passenger Ca...

作者： Timothée.Balancin 上海交通大学

学位级别：硕士

Since.the.ratification of the.Paris Agre.me.t on Climate.Change.in 2015,mitigation of GHG e.issions has be.ome.a major *** conce.n has le. the.automotive.car industry of China to shift from inte.nal combustion e.gine.ve.icle. to batte.y e.e.tric *** the.,batte.y e.e.tric ve.icle. have.be.n pre.e.te. as a me.ns to lowe. the.global stock of carbon dioxide.e.issions of the.Chine.e.car fleet in the.pre.e.t and the.*** a full life.cycle.asse.sme.t of batte.y e.e.tric ve.icle. and inte.nal combustion ve.icle. in China pe.forme. for the.ye.rs 2020 and 2030,we.compare. our data to draw the.e.olution of the.pote.tial of CO e.issions of the.total stock of passe.ge. cars by *** have.found that in a sce.ario without sale.re.trictions,CO e.issions of the.total passe.ge. car fleet will grow until 2030 to re.ch 10.7 Gt CO compare.to 9 Gt COin *** a sce.ario with sale.re.trictions,the.shift from inte.nal combustion e.gine.ve.icle. to batte.y e.e.tric ve.icle. combine.with lowe. growth of the.passe.ge. car stock allows China to re.uce.its passe.ge. car stock CO e.ission to 7.7 Gt *** the.pe.spe.tive.of China’s nationally de.e.mine. contribution of the.Paris Agre.me.t,it se.ms that the.goal to re.ch a pic of CO e.ission in this industry is a fore.e.able.*** to our analysis,the.tre.d China is taking in re.ucing the.carbon inte.sity of its e.e.gy mix combine. with its obje.tive. of incre.sing the.share.of batte.y e.e.tric ve.icle. could drastically de.re.se.the.passe.ge. car marke.’s e.ological footprint in the.case.of car sale. mitigation.

关键词： e.issions,passe.ge.,cycle.e.e.tricity,stock,batte.y,sce.ario,warming,combustion,re.ycling,

南沙海区7—9月西南大风的天气形势及其预报

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海洋通报 1983年第5期 15-20页

作者：刘作智钟德明南海舰队气象区台

一、前言南沙群岛位于我国南海诸岛的最南端,地处低纬,属季风热带气候,冬春盛行东北季风,夏秋盛行西南季风。该海区西南季风期的大风,对开发海洋资源、渔业及航海活动影响较大。我们将南沙海区范围定为9°—14°N,111°—116°e.大风... 详细信息

一、前言南沙群岛位于我国南海诸岛的最南端,地处低纬,属季风热带气候,冬春盛行东北季风,夏秋盛行西南季风。该海区西南季风期的大风,对开发海洋资源、渔业及航海活动影响较大。我们将南沙海区范围定为9°—14°N,111°—116°e.大风标准为≥10米/秒。根据

关键词：大风西太平洋台风南沙海区台风中心天气形势