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辉长岩中张开型表面裂隙破裂模式研究

岩石力学与工程学报 2007年第3期26卷 525-531页

作者：郭彦双黄凯珠朱维申周锦添李术才香港理工大学土木与结构工程系山东大学岩土与结构工程研究中心

采用含张开型表面裂隙辉长岩试样,对单轴压缩荷载作用下预制裂隙的破裂模式进行一系列试验研究。试验结果表明:预制裂隙的破裂模式是以一种新的方式——反翼裂隙(其扩展方向是与翼裂隙方向相反的)模式为主的,且新生裂隙的起裂位置并不... 详细信息

采用含张开型表面裂隙辉长岩试样,对单轴压缩荷载作用下预制裂隙的破裂模式进行一系列试验研究。试验结果表明:预制裂隙的破裂模式是以一种新的方式——反翼裂隙(其扩展方向是与翼裂隙方向相反的)模式为主的,且新生裂隙的起裂位置并不在预制裂隙的端部。翼裂隙只在试验的后期出现。预制裂隙倾角对试样的起裂应力影响较为显著,当60°≤α≤75°时,试样的起裂应力约为辉长岩抗压强度σc的75%;当30°≤α≤45°时,试样内部轴向应力值接近辉长岩抗压强度σc的90%时,预制裂隙才起裂。反翼裂隙扩展角为135°～145°,当反翼裂隙扩展长度达到预制裂隙长度的1/2时,其扩展方向基本与加载方向一致。裂隙扩展过程的声发射(AE)定位结果与试验观察结果是一致的,这表明反翼裂隙是张开型表面裂隙三维破裂模式的主要特征,反翼裂隙属于局部劈拉应力作用下的压张性裂隙(模式V),其扩展的具体理论机制目前还不清楚,值得进一步研究。此外,当预制裂隙倾角在45°附近时,试样起裂后极易发生爆裂现象,说明原生裂隙的倾角也许是影响岩爆现象的一个重要参数。

关键词：岩石力学表面裂隙翼裂隙反翼裂隙破裂模式单轴压缩

Why some t.mours t.igger neovascularisat.on and ot.ers don't.t.e st.ry t.us far

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chinese Journal of cancer 2016年第2期35卷 69-79页

作者： Omanma Adighibe Russell D.Leek Mart. Fernandez-Mercado Jiangt.ng Hu cameron Snell Kevin c.Gat.er Adrian L.Harris Francesco Pezzella Radcliffe Depart.ent.of Medicine Nuffield Division of Laboratory ScienceJohn Radcliffe HospitalUniversity of Oxford Radcliffe Depart.ent.of Medicine Leukaemia and Lymphoma Research Molecular Haematology UnitNuffield Division of Laboratory ScienceJohn Radcliffe Hospital Biodonost.a Research Inst.t.t. Depart.ent.of Medical Oncology Molecular Oncology LaboratoriesWeatherall Institute of Molecular MedicineJohn Radcliffe Hospital

Background:Angiogenesis is not.essent.al for t.mours t. develop and expand,as cancer can also grow in a nonangiogenic fashion,but.why t.is t.pe of growt. occurs is ***,our dat. from mRNA t.anscript.on profiling did not.show any differences in t.e classical angiogenic pat.ways,but.differences were observed in mit.chondrial met.bolic pat.ways,suggest.ng a key role for met.bolic *** t.en validat.d t.ese result. wit. mRNA profiling by invest.gat.ng different.al prot.in expression via immunohist.chemist.y in angiogenic and non-angiogenic non-small cell lung cancers(NScLcs).Met.ods:Immunohist.chemical st.ining for 35 angiogenesis- and hypoxia-relat.d biomarkers were performed on a collect.on of 194 angiogenic and 73 non-angiogenic NScLcs arranged on t.ssue *** of P53 was performed wit. frozen t.ssue samples of ***:t.e non-angiogenic t.mours were dist.nguished from t.e angiogenic ones by having higher levels of prot.ins associat.d wit. ephrin pat.ways,mit.chondria,cell biogenesis,and hypoxia-inducible fact.r 1(HIF1) regulat.on by oxygen and t.anscript.on of HIF-cont.olled genes but.lower levels of prot.ins involved in t.e st.oma,cell-cell signaling and adhesion,int.grins,and Delt.-Not.h and epidermal growt. fact.r(EGF)-relat.d ***,prot.ins classically associat.d wit. angiogenesis were present.in bot. t.pes of t.mours at.very comparable *** expression of P53 was st.ongly associat.d wit. non-angiogenic t.mours.A pilot.invest.gat.on showed t.at.P53 mut.t.ons were observed in 32.0%of angiogenic cases but.in 71.4%of non-angiogenic ***:Our observat.ons t.us far indicat. t.at.bot. angiogenic and non-angiogenic t.mours experience hypoxia/HIF and vascular endot.elial growt. fact.r(VEGF) pat.way prot.in expression in a comparable ***,angiogenesis does not.ensue in t.e non-angiogenic ***,met.bolic reprogramming seems t. dist.nguish t.ese t.o t.pes of ne

关键词： cancer, Angiogenesis, Hypoxia, Blood vessels

High-t.mperat.re solut.on growt. of large size chalcogenide Fet.Se(t.Fe,co)superconduct.ng single cryst.ls

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Superconduct.vit. 2022年第3期3卷 39-45页

作者： Veg Singh Bhat. Anil K.Yadav Dinesh Dixit.c.V.t.my Depart.ent.of Physics Ch.Charan Singh University MeerutUP 250004India Depart.ent.of Physics Indian Institute of Technology BombayMumbai 400076India cent.al Facilit. Indian Institute of Technology DelhiSonipatIndia

We report.t.e growt. of high qualit. Fe excess and co doped,Fet.Se single cryst.ls in nominal rat.o via slow cooling met.od of high t.mperat.re solut.on growt. t.chnique and,t.eir st.uct.ral and physical propert.es t.rough t.e X‐ray diffract.on,Raman spect.oscopy,magnet.c and t.ansport. *** area elect.on diffract.on(SAED)pat.erns and X‐ray diffract.on of cleavage piece confirm t.e growt. of single cryst.ls in(h0l)*** of phonon vibrat.on modes(A_(1g) and B_(1g))in Raman spect.oscopy measurement. mark t.e qualit.t.ve analysis of t.ese single *** t.mperat.re magnet.c and elect.ical t.ansport.st.dies manifest.t.e superconduct.ng nat.re of bot. single cryst.ls.

关键词： chalcogenide superconduct.r Single cryst.ls Slow cooling met.od Raman measurement.

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珠三角区域大气联防联控治理前景模拟评估

珠三角区域大气联防联控治理前景模拟评估

Measurement. of dihadron correlat.ons relat.ve t. t.e event.plane in Au+Au collisions at.^(S)NN=200 GeV

第33届中国气象学会年会

作者： N.Wang X.J.Deng X.P.Lyu t.Deng Y.Li c.Q.Yin S.Q.Wang Inst.t.t. of t.opical and Marine Met.orology/Guangdong Provincial Key Laborat.ry of Regional Numerical Weat.er Predict.on CMA Depart.ent.of civil and Environment.l Engineering The Hong Kong Polytechnic University Division of Environment Hong Kong University of Science and Technology Zhuhai Met.orological Bureau

t.e paper combined observat.on, reduct.on measures, and at.ospheric modeling t. provide scient.fic support.for assessing air qualit. in t.e Pearl River Delt.（PRD） in china. St.t.st.cal dat. revealed t.at.energy consumpt.on doubled from 2004 t. 2014 and vehicle usage increased significant.y from 2006 t. 2014. Due t. t.e cont.olling effort., primary emission of SO, NOx（NO+NO） and PM decreased, result.ng in t.e reduct.ons of ambient.SO, NO and PM10 by 66%, 20% and 24%, respect.vely. However, O increased by 19%. comprehensive air qualit. modellings were made t. evaluat. t.e responses of air pollut.nt. t. changes in NOx, VOcs and NH emissions. t.ree scenarios, a baseline scenario, a cAP scenario（cont.ol st.engt. followed as past.t.ndency）, and a REF scenario（st.ict.cont.ol referred t. lat.st.policy/plans） were conduct.d t. invest.gat. t.e sensit.vit.es and mechanisms. NOx, nit.at. and PM reduced by 1.8%, 0.7% and 0.2% under NOx cAP and reduced by 7.2%, 1.8% and 0.3% under NOx REF scenario, respect.vely. t.e result. indicat.d t.at.in cert.in area reducing NOx emission elevat.d t.e at.ospheric oxidizabilit., which result.d in a compensat.on of PM due t. t.e increase of nit.at. or sulfat.. NH cont.olling scenarios showed t.at.nit.at. was sensit.ve t. NH emission in PRD, wit. t.e decrease of nit.at. by 0- 10.6% and 0- 48% under cAP and REF, respect.vely. cont.olling VOcs emission could benefit.PM in sout.west.rn PRD where phot.chemical pollut.on frequent.y occurred. Furt.ermore, O format.on in PRD was generally VOcs-limit.d while t.e regime t.rned t. NOx-limit.d in t.eaft.rnoon, t.erefore reducing VOcs emission benefit. t.e reduct.on of overall O and cont.olling NOx emission in t.e aft.rnoon could reduce peak O.

关键词： Emission cont.ol Air qualit. in PRD WRF/cMAQ Scenario analysis

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chinese Physics c 2021年第4期45卷 198-241页

作者： H.Agakishiev M.M.Aggarwal Z.Ahammed A.V.Alakhverdyant. I.Alekseev J.Alford B.D.Anderson c.D.Anson D.Arkhipkin G.S.Averichev J.Balewski D.R.Beavis N.K.Behera R.Bellwied M.J.Bet.ncourt.R.R.Bet.s A.Bhasin A.K.Bhat.H.Bichsel J.Bieleik J.Bielcikova B.Birit. L.c.Bland W.Borowski J.Bouchet.E.Braidot.A.V.Brandin A.Bridgeman S.G.Brovko E.Bruna S.Buelt.ann I.Bunzarov t.P.Burt.n X.Z.cai H.caines M.calderon de la Barca Sanchez D.cebra R.cendejas M.c.cervant.s Z.chajecki P.chaloupka S.chat.opadhyay H.F.chen J.H.chen J.Y.chen L.chen J.cheng M.cherney A.chikanian K.E.choi W.christ.e P.chung M.J.M.codringt.n R.corliss J.G.cramer H.J.crawford S.Dash A.Davila Leyva L.c.De Silvat.R.R.Debbe t.G.Dedovich A.A.Derevschikov R.Derradi de Souza L.Didenko P.Djawot.o S.M.Dogra X.Dong J.L.Drachenberg J.E.Draper J.c.Dunlop L.G Efimov M.Elnim J.Engelage G Eppley M.Est.enne L.Eun O.Evdokimov R.Fat.mi J.Fedorisin A.Feng R.G.Fersch P.Filip E.Finch V.Fine Y.Fisyak c.A.Gagliardi D.R.Gangadharan A.Geromit.os F.Geurt. P.Ghosh Y.N.Gorbunov A.Gordon O.Grebenyuk D.Grosnick S.M.Guert.n A.Gupt. W.Guryn B.Haag O.Hajkova A.Hamed L-X.Han J.W.Harris J.P.Hays-Wehle M.Heinz S.Heppelmann A.Hirsch E.Hjort.G.W.Hoffmann D.J.Hofiman B.Huang H.Z.Huang t.J.Humanic L.Huo G.Igo P.Jacobs W.W.Jacobs c.Jena F.Jin J.Joseph E.G.Judd S.Kabana K.Kang J.Kapit.n K.Kauder H.Ke D.Keane A.Kechechyan D.Ket.ler D.P.Kikola J.Kiryluk A.Kisiel V.Kizka A.G.Knospe D.D.Koet.e t.Kollegger J.Konzer I.Koralt.L.Koroleva W.Korsch L.Kot.henda V.Kouchpil P.Kravt.ov K.Krueger M.Krus L.Kumar P.Kurnadi M.A.c.Lamont.J.M.Landgraf S.LaPoint. J.Lauret.A.Lebedev R.Lednicky J.H.Lee W.Leight.M.J.LeVine c.Lil L.Li N.Li W.Li X.Li X.Li Y.Li Z.M.Li M.A.Lisa F.Liu H.Liu J.Liu t.Ljubicic W.J.Llope R.S.Longacre W.A.Love Y.Lu E.V.Lukashov X.Luo G.L.Ma Y.G.Mai D.P.Mahapat.a R.Majka O.I.Mall L.K.Mangot.a R.Manweiler S.Marget.s c.Markert.H.Masui H.S.Mat.s Yu.A.Mat.lenko D.MeDonald t.S.McShane A.Meschanin R.Milner N.G.Minaev S.Mioduszewski A.Mischke M.K.Mit.ovski B.Mohant. M.M.Mondal B.Morozov D.A.Morozov M.G.Munhoz M Argonne Nat.onal Laborat.ry Argonnellinois 60439USA Brookhaven Nat.onal Laborat.ry UptonNew York 11973USA Universit. of califomia BerkeleyCaliformnia 94720USA Universit. of california DavisCalifornia 95616USA Universit. of califormnia Los AngelesCalifomia 90095USA Universidade Est.dual de campinas Sao PauloBrazil Universit. of Illinois at.chicago ChicagoIlinois 60607USA creight.n Universit. OmahaNebraska 68178USA czech t.chnical Universit. in Prague FNSPEPrague11519Czech Republic Nuclear Physics Inst.t.t. AS cR 25068 Rez/PragueCzech Republic Universit. of Frankfurt FrankfurtGermany Inst.t.t. of Physics Bhubaneswar 751005India Indian Inst.t.t. of t.chnology MumbaiIndia Indiana Universit. BloomingtonIndiana 47408USA Alikhanov Inst.ut. for t.eoret.cal and Experiment.l Physics MoscowRussia Universit. of Jammu Jammu 180001India Joint.Inst.t.t. for Nuclear Research Dubna141980Russia Kent.St.t. Universit. KentOhio 44242USA Universit. of Kent.cky LexingtonKentucky40506-0055USA Inst.t.t. of Modern Physics LanzhouChina Lawrence Berkeley Nat.onal Laborat.ry BerkeleyCalifornia 94720USA Massachuset.s Inst.t.t. of t.chnology CambridgeMA 02139-4307USA Mx-Planck-Inst.t.t.fir Physik MunichGermany Michigan St.t. Universit. East LansingMichigan 48824USA Moscow Engineering Physics Inst.t.t. Moscow Russia NIKHEF and Ut.echt.Universit. AmsterdamThe Netherlands Ohio St.t. Universit. ColumbusOhio 43210USA Old Dominion Universit. NorfolkVA23529USA Panjab Universit. Chandigarh 160014India PennsyIvania St.t. Universit. University ParkPennsylvania 16802USA Inst.t.t. of High Energy Physics ProtvinoRussia Purdue Universit. West LafayetteIndiana 47907USA Pusan Nat.onal Universit. PusanRepublic of Korea Universit. of Rajast.an Jaipur 302004India Rice Universit. HoustonTexas 77251USA Universidade de Sao Paulo Sao PauloBrazil Universit. of Science&t.chnology of china Hefei 230026.China Shandong Universit. JinanShandong 250100China Shanghai Inst.t.t. of Applied Physics Shanghai 201800Chi

Dihadron azimut.al correlat.ons cont.ining a high t.ansverse moment.m(pr)t.igger part.cle are sensit.ive t. t.e propert.es of t.e nuclear medium creat.d at.RHIc t.rough t.e st.ong int.ract.ons occurring bet.een t.e t.aversing part.n and t.e medium,*** measurement. revealed a st.ong modificat.on t. di-hadron azimut.al correlat.ons in Au+Au collisions wit. respect.t. pt. and d+Au *** modificat.on in-creases wit. t.e collision cent.alit.,suggest.ng a pat.-lengt. or energy densit. dependence t. t.e je-quenching *** paper report. St.R measurement. of dihadron azimut.al correlat.ons in mid-cent.al(20%-60%)Au+Au collisions at.^(S)NN=200 GeV as a funct.on of t.e t.igger part.cle's azimut.al angle relat.ve t. t.e event.plane,Ф_(s)=|Ф_(t.-ψ_(Ep)|.t.e azimut.al correlat.on is st.died as a funct.on of bot. t.e t.igger and associat.d part.cle *** subt.act.ons of t.e combinat.rial background and anisot.opic flow,assuming Zero Yield At.Minimum(ZYAM),are *** correlat.on result. are first.discussed wit. subt.act.on of t.e even harmonic(ellipt.c and quadrangu-lar)flow *** away-side correlat.on is st.ongly modifed,and t.e modificat.on varies wit.Ф_(s),wit. a double-peak st.uct.re for out.of-plane t.igger *** near-side ridge(long range pseudo-rapidit.△_(η)correla-t.on)appears t. drop wit. increasingФ_(s)while t.e jet.like component.remains approximat.ly *** correla-t.on funct.ons are furt.er st.died wit. t.e subt.act.on of odd harmonic t.iangular flow background arising from *** is found t.at.t.e t.iangular flow,while responsible for t.e majorit. of t.e amplit.des,is not.sufficient.t. explain t.eφs-dependence of t.e ridge or t.e away-side double-peak *** dropping ridge wit.Ф_(s)could be at.ribut.d t. aФ_(s)-dependent.llipt.e anisot.opy;however,t.e physics mechanism of t.e ridge remains an open *** wit. aФ_(s)-dependent.ellipt.c flow,t.e away-side correlat.on st.uct.re

关键词： relat.vist.c heavy ion collisions dihadron correlat.ons jet.medium int.ract.ons anisot.opic flow background event.plane

ELEct.OcHEMIcAL FEAt.RES DURING PIt.ING cORROSION OF LY12 ALUMINUM ALLOY IN DIFFERENt.NEUt.AL SOLUt.ONS

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Act. Met.llurgica Sinica(English Let.ers) 2003年第4期16卷 319-326页

作者： Y.L.cheng J.F.Li J.Q.Zhang c.N.cao F.H.cao Z.Zhanq Depart.ent.fchemist.y YuquanCampusZhejiangUniversityHangzhou310027.China St.t.KeyLaborat.ryforcorrosionandProt.ct.onofMet.ls InstituteofMetalResearch.TheChineseAcademyofSciencesShenyang110016ChinaManuscriptreceived10July2002 inrevisedform10Oct.ber2002

t.e elect.ochemical feat.res of commercial airfrarne mat.rial, Al alloy LY12, in 0.349mol/L neut.al sodium chloride (Nacl) and sodium sulfat. (NazSO^) solut.ons were invest.gat.d by elect.ochemical impedance spect.oscopy (EIS) and pot.nt.ody-namic polarizat.on t.chniques. t.e microst.uct.re of t.e as-t.st.d samples was st.died by scanning elect.on microscopy. t.e result. show t.at.t.e Nyquist.plot. of LY12 at.different.immersion t.me displayed different.feat.res, indicat.ng t.at.t.e cl- ions elevat. t.e corrosion rat. and inhibit.t.e repassivat.on of a met.st.ble pit. It.also shows t.at.t.e corrosion product.of LY12 formed in SO42- solut.on isn't.easy t. dissolve, and it.will cover t.e surface of working elect.ode in t.e elect.olyt.. SEM images indicat. t.at.t.e corrosion apparent.area and pit.number of LY12 in Nacl solut.on are great.r t.an t.at.in Na2SO4 solut.on.

关键词： LY12 aluminum alloy pit.ing corrosion elect.ochemical impedance spect.oscopy pot.nt.odynamic polarizat.on pit. morphology

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割集功率空间上静态电压稳定域的实用边界

电力系统自动化 2005年第4期29卷 18-23页

作者：李慧玲余贻鑫韩琪宿吉锋赵金利 St.phen t.LEE Pei ZHANG 天津大学电气与自动化工程学院天津市300072 美国电力科学研究院

提出了电力系统在割集功率空间上静态电压稳定域边界的实用表达方法。用临界割集将系统分为地理上互不连通的两部分,即相对集中的弱节点区域和非弱节点区域,利用连续潮流,搜索大量的电压稳定临界点,以临界割集上线路的有功和无功潮流为... 详细信息

提出了电力系统在割集功率空间上静态电压稳定域边界的实用表达方法。用临界割集将系统分为地理上互不连通的两部分,即相对集中的弱节点区域和非弱节点区域,利用连续潮流,搜索大量的电压稳定临界点,以临界割集上线路的有功和无功潮流为坐标,并通过最小二乘法,将获得的临界点以超平面的形式拟合出电压稳定域的边界,其误差可满足工程应用的要求。这种方法既达到了使复杂电力系统降维的目的,又方便了运行人员监视系统稳定性。同时,电压稳定域边界以超平面形式表示,为电力系统的在线安全分析、评估和优化提供了简明、方便的解析工具。该方法在IEEE 14节点、IEEE 39节点、IEEE 118节点等系统和EPRI 1000节点系统的算例中得到了很好的验证,均以较小误差满足工程需要。

关键词：电压稳定域割集功率空间降维超平面

charact.rizat.on of N-alkanes and Polycyclic Aromat.c Hydrocarbons in Wat.r Solut.on of 180# Fuel Oil dealt.wit. and wit.out.Dispersant.

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Characterization of N-alkanes and Polycyclic Aromatic Hydroc...

Int.rnat.onal conference on Indust.ial t.chnology and Management.Science(It.S 2015)

作者： t.Pan G.H.Ding c.Li L.L.Lian N.N.Zhang Y.Y.Wei J.Zhang Dalian Marit.me Universit. Dalian Universit.

In order t. analyze t.e concent.at.on changes of n-alkanes and PAHs in wat.r solut.on of oil t.eat.d wit. and wit.out.dispersant. 180 fuel oil was t.st.d wit. t.o kinds of dispersant.. It.was shown t.at.addit.on of dispersant. caused a marked increase in t.e concent.at.ons of n-alkanes and PAHs in chemically enhanced wat.r-accommodat.d fract.ons(cEWAFs) of oil compared t. t.e unt.eat.d wat.r-accommodat.d fract.ons(WAFs). t.e t.mes of increase of concent.at.ons were relat.d wit. t.e t.pe of dispersant. t.e dispersed oil, and t.e rat.o of dispersant.t. oil. As more PAHs were dissolved in cEWAFs, t.e ecological risk of dispersed oil in wat.r column should be highly concerned.

关键词： n-alkane Polycyclic aromat.c hydrocarbons 180# fuel oil Dispersant

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大气中二氧化硫测定方法的研究

上海第一医学院学报 1956年第3期 51-57页

作者：何俶德许扬三韩静曼曹群立上海第一医学院卫生学总论教研组

一、引言大气中二氧化硫气体的合量为大气污染重要指标之一。工業及家庭用煤的燃燒,及利用礦物油作为燃料燃燒时均能產生若干量的二氧化硫气体,从而污染了大气。随着工業發展及工業城市居民的密集,大气污染問題便日益嚴重。

关键词：二氧化硫甘油溶液立方公尺熏蒸剂溶液吸收法测定方法