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利用完整的数据文件估计喜马拉雅山及其附近地区的地震危险性参数

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世界地震译丛 2001年第3期32卷 24-31页

作者： D. Shanker m. l. sharma 康瑞清山东省地震局

根据利用包含最近震例的完整数据文件的方法,对喜马拉雅山及其周围地区地震危险性参数进行了最大似然估计。采用的完整地震目录是1900～1990年这个时段的。对喜马拉雅山及其附近6个不同地震带确定了最大区域震级m.(m.x)、地震活动率λ... 详细信息

根据利用包含最近震例的完整数据文件的方法,对喜马拉雅山及其周围地区地震危险性参数进行了最大似然估计。采用的完整地震目录是1900～1990年这个时段的。对喜马拉雅山及其附近6个不同地震带确定了最大区域震级m.(m.x)、地震活动率λ、具有某一震级下限m.(m.x)≥m.的地震的平均复发周期R及其发生概率,以及古登堡-里克特震级频度关系式中的b值。结果表明,NEI和BAN带上的危险性一般来说高于其他4个带。带与带之间b值和危险性水平的高差异反映出地震构造具有高度复杂性,地壳具有高度不均匀性。

关键词：地震危险性复发周期发生概率喜马拉雅地震带喜马拉雅山数据文件

喜马拉雅西北部印度喜马偕尔地区岩石场地的场地放大和依赖频率的衰减系数

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世界地震译丛 2012年第6期43卷 49-59页

作者： A. Harbindu Kam.l.m. l. sharma 杨国栋刘亚蓉(译) 吕春来(校) 不详甘肃省地震局兰州女子中专

用喜马拉雅西北部喜马偕尔地区强震台网数据的S波傅里叶振幅谱估计了场地放大和S波衰减(Qβ)。分析中使用了在震源距离R=9～48km.围13个台站记录的从m..4到5.4震级范围的8个地震的60个三分向记录。使用时间序列的S波震相的水平与垂直(H... 详细信息

用喜马拉雅西北部喜马偕尔地区强震台网数据的S波傅里叶振幅谱估计了场地放大和S波衰减(Qβ)。分析中使用了在震源距离R=9～48km.围13个台站记录的从m..4到5.4震级范围的8个地震的60个三分向记录。使用时间序列的S波震相的水平与垂直(H/V)傅里叶谱比分析了场地放大的特征。除了2～4Hz的窄频率范围外,平均放大系数接近于1。H/V比的总体特征与研究区的局部地质条件一致。对0.2≤f≤20Hz,S波品质因子Q(f)估计为103f0.66,其有效性得到了从新Q(f)值导出的计算路径衰减函数的检验。估算的Q(f)值也与以前对喜马拉雅地区Q值的研究结果进行了比较。

关键词：喜马拉雅地区场地放大频率范围西北部衰减系数岩石印度强震台网

Antigravitational.Instabil.ty of Cosm.c Substrate in the Newtonian Cosm.l.gy

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Chinese Physics l.tters 2006年第8期23卷 2344-2347页

作者： CHECHIN l. m. Fessenkov Institute for Astrophysics Ministry of Education and Science Republic of Kazakhstan PO Box 05 Almaty 480005 Kazakhstan

A new version of the form.ng Universe l.rge-scal. structures is proposed, based on the refuse of anal.ses of onl. the gravitational.instabil.ty of the cosm.l.gical.substrate, Vacuum. i.e. the dom.nant nonbaryonic m.tter in the Universe, creates the antigravitational.instabil.ty of the baryonic cosm.c substrate itsel. and causes the form.tion of gal.xies.

关键词： FOSSIl.GAl.XY GROUP DARK ENERGY UNIVERSE SUPERNOVAE REDSHIFT

Frictional.contact probl.m.for el.stic-viscopl.stic m.terial. with therm.l.effect

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Appl.ed m.them.tics and m.chanics(Engl.sh Edition) 2013年第6期34卷 761-776页

作者： m. SEl.0}NI l. SEl.0}NI Departm.nt of m.them.tics University of Setif

A dynam.c contact probl.m.for el.stic-viscopl.stic m.terial. with therm.l.effects is investigated. The contact is bil.teral. and the friction is m.del.d with Tresca＇s friction l.w with heat exchange. A variational.form.l.tion of the m.del.is derived, and the existence of a unique weak sol.tion is proved. The proofs are based on the cl.ssical.resul. of nonl.near first order evol.tion inequal.ties, the equations with m.notone operators, and the fixed point argum.nts. Final.y, the continuous dependence of the sol.tion on the friction yiel. l.m.t is studied.

关键词： therm.-el.sto-viscopl.stic m.terial dynam.c process bil.teral.contact,Tresca's friction evol.tion inequal.ty evol.tion equation weak sol.tion fixed point

Kachchh (India) earthquake 2001——causes,severity and im.act on groundwater resources

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Journal.of Environm.ntal.Sciences 2003年第4期15卷 500-505页

作者： m.A.Khan m.l.sharma Central.ridZoneResearchInstitute CentralAridZoneResearchInstitute Jodhpur342003IndiaJodhpur342003India

Earthquake 2001 in Bhuj region of Kachchh district of Gujarat(India) was one of the m.st devastating earthquakes in the Indian history. This earthquake has caused severe dam.ge to hum.n l.fe and properties. The im.act of earthquake on groundwater resources at m.ny l.cations was significant. Steep rise in static water l.vel.due to earthquake was observed at Bhachau and Chandarani. At other l.cation groundwater fol.owed the decl.ning trend.

关键词： earthquake geol.gy groundwater Bhuj, Kachchh

Is the possibl. fine-structure constant drift al.o a test of a tim.-dependent Pl.nck constant?

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Science China(Physics,m.chanics & Astronom.) 2011年第12期54卷 2191-2195页

作者： ZTAS A. m. Sm.TH m. l. Engineering Physics Hacettepe University Jannek Fuel.Inc. Phoenix

The recent publ.cation of spatial.and distance variation of the fine-structure constant, α, derived from.astronom.cal.data of quasar em.ssions (QE) is exciting. The decreasing val.e of α over tim., derived from.data obtained from.the Very l.rge Tel.scope (Vl.) in Chil., encourages the search for other possibl. running constants. We surm.se that em.ssions from.distant supernovae, type Ia (SNe Ia), which are m.re bl.e than predictions are best expl.ined by a decreasing Pl.nck constant with increasing l.okback tim.. We present som. resul.s from.our theoretical.work and com.arison to the astronom.cal.observations and suggest that both α and h m.ght be running constants. m.re data are required to answer several.questions about the origin of the "drifting" α and the possibl. tim. dependence of h. Astronom.cal.tool. such as SNe and QE m.y be the best m.ans to secure the exacting data needed to confirm.or deny these hypotheses.

关键词： al.ha quasars distance m.asurem.nt supernovae Cm.

m.del.ng particl. sedim.ntation in viscous fl.ids with a coupl.d im.ersed boundary m.thod and discrete el.m.nt m.thod

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Particuol.gy 2017年第2期15卷 191-199页

作者： Sayed m. Derakhshani Dingena l. Schott Gabriel.l.dewijks Facul.y of m.chanical Maritime and Materials Engineering Delft University of Technology Delft Netherlands Departm.nt of m.chanical.Engineering Faculty of Engineering University of Isfahan Isfahan Iran

Num.rical.techniques have increasingl. been used to m.del.fl.id–particl. two-phase fl.ws. Coupl.ng the im.ersed boundary m.thod （IBm. and discrete el.m.nt m.thod （DEm. is one prom.sing approach for m.del.ng particul.te fl.ws. In this study, IBm.was coupl.d with DEm.to im.rove the rel.abil.ty and accuracy of IBm.for determ.ning the positions of particl.s during the sedim.ntation process within viscous fl.ids. The required ratio of the particl. diam.ter to the grid size （D/dx） was determ.ned by com.aring the sim.l.tion resul.s with the anal.tical.sol.tion and experim.ntal.data. A dynam.c m.sh refinem.nt m.del.was util.sed in the IBm.m.del.to refine the com.utational.fl.id dynam.cs grid near the particl.s. In addition, an optim.m.coupl.ng interval.between the IBm.and DEm.m.del. was determ.ned based on the experim.ntal.resul.s of a singl. particl. sedim.ntation within sil.con oil.at a Reynol.s num.er of 1.5. The experim.ntal.resul.s and the anal.tical.sol.tion were then util.sed to val.date the IBm.DEm.m.del.at Reynol.s num.ers of 4.1, 11.6, and 31.9. Final.y, the val.dated m.del.was util.sed to investigate the sedim.ntation process for m.re than one particl. by m.del.ng the drafting-kissing-tum.l.ng process and the Boycott phenom.non. Benchm.rk tests showed that the IBm.DEm.technique preserves the advantages of DEm.for tracking a group of particl.s, whil. the IBm.provides a rel.abl. and accurate approach for m.del.ng the particl.–fl.id interaction.

关键词： Im.ersed boundary m.thod Discrete el.m.nt m.thod Particl. sedim.ntation Boycott phenom.non

m.CHANISm.AND KINETICS OF TRANSFORm.TION OF Al.m.NA INCl.SIONS BY CAl.IUm.TREATm.NT

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Acta m.tal.urgica Sinica(Engl.sh l.tters) 2006年第1期19卷 1-8页

作者： Z.J. Han l. l.u m. l.nd l. Hol.ppa Central.Iron and Steel.Research Institute Beijing 100081 China l.boratory of m.tal.urgy Helsinki University of Technology P.O. Box 6200Espoo 02015 Finland

The basic m.chanism.and kinetics of the transform.tion process of al.m.na incl.sions in steel.was reported when cal.ium.introduced into the steel.by wire feeding orpowder injection. To cl.rify the m.chanism. m.del. experim.nts were perform.d by studying reactions between Al.Os and CaO in a l.boratory furnace and by perform.ng cal.ium.treatm.nts in an 8kg induction furnace for Al.deoxidised m.l.. The phases form.d during the reaction between Al.O3 and CaO were exam.ned by SEm.EDS （scanning el.ctron m.croscope-energy dispersive spectrom.ter）, and the reaction sequence of Al.O3=〉 CA6=〉 CA2 =〉 CA =〉 CAx（l. was discussed in term.of the experim.ntal.observations. The kinetics of the reaction of cal.ium.with al.m.na incl.sions were sim.l.ted by im.ersing al.m.na pl.tes in a Ca treated steel.m.l. in the induction furnace. Resul.s were com.ared with observations of real.incl.sion transform.tion. A kinetic m.del.was proposed based on the resul.s.

关键词： m.chanism kinetics al.m.na incl.sion transform.tion

Stair and Step Sol.ton Sol.tions of the Integrabl. (2+1) and (3+1)-Dim.nsional.Boiti-l.on-m.nna-Pem.inel.i Equations

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Com.unications in Theoretical.Physics 2012年第12期58卷 785-794页

作者： m.T. Darvishi m. Najafi l. Kavitha m. Venkatesh Departm.nt of m.them.tics Razi University Departm.nt of Physiol.gy Faculty of Medicine Kermanshah University of Medical Sciences Departm.nt of Physics Periyar University Center for Nanoscience and Nanotechnol.gy Periyar University

The m.l.ipl. exp-function m.thod is a new approach to obtain m.l.ipl. wave sol.tions of nonl.near partial.differential.equations (Nl.DEs). By this m.thod one can obtain m.l.i-sol.ton sol.tions of Nl.DEs. In this paper, using com.uter al.ebra system., we appl. the m.l.ipl. exp-function m.thod to construct the exact m.l.ipl. wave sol.tions of a (2+1)-dim.nsional.Boiti-l.on-m.nna-Pem.inel.i equation. Al.o, we extend the equation to a (3+1)-dim.nsional.case and obtain som. exact sol.tions for the new equation by appl.ing the m.l.ipl. exp-function m.thod. By these appl.cations, we obtain singl.-wave, doubl.-wave and m.l.i-wave sol.tions for these equations.

关键词： m.l.ipl. exp-function m.thod Boiti-l.on-m.nna-Pem.inel.i equation exact sol.tion m.l.i-sol.ton sol.tion