简介：拍拍球杆的灰尘,振作疲惫的精神,远方也许尽是坎坷路,也许要和"高才绝学"走一程。THISMONTH让我们继续奔前程……"明星挥杆学校"迎来了MikeSkinner同学;RorySbbatini同学将为大家示范他的挥杆连贯动作;JeffRitter教练从"武士道"精神里领悟了一些高尔夫哲理……

简介：Thispaperbrieflysummarizestheworksintheprocessingofstronggroundmotiondata,thefactorsaffectingstronggroundmotion,themodelingofstronggroundmotionandthecalculatingofbroad-bandresponsespectrumwhichhavebeendonerecentyearsbyengineeringseismologistsandseismologistsofChina.Inaddition,wethinkbacktotheinternationalcooperationinstronggroundmotionoftherecentyearsandmakesomeexpectationsforthefuture.

简介：JinheHydropowerStation(Changdu,Tibet),thekeyprojectsetinthe10thFive-yearPlaninTibet,hasbegunconstructiononDecember6,2001.ThediversiontypestationissituatedontherightbankofLancangRiver,withintheboundariesofChangduCounty.Itisaninterbasindevelopedprojectwitha

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简介：Ｉｎｉｔｉａｌ　Ｇｒｏｕｎｄ　Ｓｔａｔｅ　ｆｏｒ　ＱＭＤ　ＣａｌｃｕｌａｔｉｏｎｓＩｎｉｔｉａｌＧｒｏｕｎｄＳｔａｔｅｆｏｒＱＭＤＣａｌｃｕｌａｔｉｏｎｓ￥ＷｅｉＺｈｉｙｏｎｇａｎｄＺｈｕＹｏｎｇｔａｉＩｎｕｓｉｎｇＱＭＤｆｏｒｌｏｗｅｎｅｒｇｙｃｏ...

简介：在前後一致的Hartree-Fock近似以内，一在为不同类的Bose气体的扎根的州的精力的这近似表情明确是被导出一Bose爱因斯坦冷凝物的不同类的密度功能。获得的结果与Bose爱因斯坦冷凝物为系统在单个粒子的密度矩阵基于离开斜的远程的顺序的存在。这使避免异常一般水准的使用可能。动能的明确的形式，在Gross-Pitaevski途径不同于一个，被发现。动能的获得的形式在Hartree-Fock近似以外是有效的并且能被申请任意的强壮的interparticle相互作用。

简介：Ageo-referenceisaglobalorregionalgeographicalorgeodeticcoor-dinatesystemtowhichsensorsorspatialobjectdataarerelated.Hence,geo-ref-erencingisclosetothewellknownphotogrammetricconceptofexteriororabso-luteorientation,thecommonexecutionofwhichisindirect,viatheuseofgroundcontrolpoint.GPSandINStechnologieshavechangedthesituation,permittingdirectmeasurementofpositionandattitudeparametersandmakingexteriororien-tationfeasiblewithoutgroundcontrolatall,inprinciple.Theanalysisofaccuracyandreliabilityperformancediscloses,however,thatespeciallyINSdoesnotyetmeetthehighdemandsofphotogrammetry.Moreover,controlofsystematicer-rors,theproblemofdatumtransformation,andreliabilityconditionsmaketheuseofsomegroundcontrolpointsstillmandatory,atleastforanyhighperfor-mancegeo-referencing.

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简介：Inthispaper,weconsiderFPUlatticeswithparticlesofunitmass.Thedynamicsofthesystemisdescribedbytheinfinitesystemofsecondorderdifferentialequationsqn=U′(qn+1-qn)-U′(qn-qn-1),n∈Z,whereqndenotesthedisplacementofthen-thlatticesiteandUisthepotentialofinteractionbetweentwoadjacentparticles.InspiredbypreviousworkduetoSzulkinandWeth（Groundstatesolutionsforsomeindefinitevariationalproblems,J.Funct.Anal.,257（2009）,3802-3822）,weinvestigatetheexistenceofsolitarygroundwaves,i.e.,nontrivialsolutionswithleastpossibleenergy.

简介：由于有限金融资源和挑战性的地理条件，在中国的地震观察网络的数字仍然是很小的，他们不是广泛地分布式的。因此，在地震以后获得的可得到的地震记录被限制了。在这份报纸，在不同条件下面获得强壮的运动isolines的汽车产生方法被建议。验证这些方法的精确性，包括到2008Wenchuan地震的申请，一些例子被给。

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简介：这是一名同学阅读时遇到的一个习语。他不太明白这个习语的含义，那么让我们一起分享一下这个地道美国习语吧!

简介：Inthispaper,themathematicaltheoryoffuzzyprobabilityisusedfortheproblemsofrockmassmechanicsduetoexcavation,especiallymining.Amathematicalmodelisdevelopedforthemovementanddeformationofrockmassonthebasisoftheassumptionthatthedisplacementanddeformationofrockmassisafuzzyevent,andfromthismodeltheoreticalformulasarederivedforcalculatingthedisplacementofrockmassduetoexcavationThetheoriesofboththetwo-andthree-dimensionalproblemsaredevelopedandappliedtotheanalysisofengineeringproblemsinexcavation.Theagreementofthetheoreticalresultswiththefieldmeasurementsshowsthatourmodelissatisfactoryandtheformulaeobtainedarevalidandthuscanbeeffectivelyusedforpredictingthedisplacementsanddeformationsandthesafetyevaluationofthebuildingsonthegroundsurface.

简介：ＧＲＯＵＮＤ－ＢＡＳＥＤＭＥＡＳＵＲＥＭＥＮＴＳＯＦＣＯＬＵＭＮＡＢＵＮＤＡＮＣＥＯＦＯＺＯＮＥＡＮＤＵＶ－ＢＲＡＤＩＡＴＩＯＮＯＶＥＲＺＨＯＮＧＳＨＡＮＳＴＡＴＩＯＮ，ＡＮＴＡＲＣＴＩＣＡＦＯＲＴＨＥ１９９３“ＯＺＯＮＥＨＯＬＥ”ＺｈｏｕＸｉｕｊｉ...

简介：飞机飞结束到从提高的效率由于的扎根的利益减少导致拖并且增加的电梯。在这研究，一个数学模型被开发用一个反复的边界元素方法(IBEM)和有限差别计划在地面附近模仿一个翅膀的起飞。二独立亚代码和母亲代码，启用在亚代码之间的通讯，被开发为Wing-In-Ground(假发)效果的自激解决。在翅膀上施加的空气动力学的力量被第一亚代码用IBEM计算，并且翅膀的垂直排水量由用有限差别计划的第二亚代码是计算的。二亚代码和罐头在秒以内为翅膀和操作高度的气体动力学解决的母亲代码命令。发达代码系统被用来为一个NACA6409翅膀的力量，速度，和排水量解决在一40，和20?min

简介：Basedonthesphericalcavityexpansiontheoryintheelastichalfspace,thegroundsurfacemovementcharacteristicsofshallowlyburiedexplosionsareanalyzed.TheresultsshowthattheinducedseismicwaveisalongitudinalwaveinthenearzoneandaRayleighwaveinthefarzone.Themaximumdisplacement(velocity)ofthelongitudinalwaveandtheRayleighwaveareinverselyproportionaltothescaleddistance,andcanbedescribedbyexponentialfunctionwithexponentsequalto1.4and0.5,respectively.Thevibrationfrequenciesofthewaveshavealmostnochange.Thevibrationfrequencyofthelongitudinalwaveapproximatesthenaturalvibrationfrequencyofthecavityinthebrokenarea,andthevibrationfrequencyoftheRayleighwaveisabouthalfthatofthelongitudinalwave.Onthesamereducedburieddepthandreduceddistance,theparticledisplacementisdirectlyproportionaltotheproductoftheboundaryloadingandcavityradius,andisinverselyproportionaltothetransversalwavevelocity.Meanwhile,theparticlevelocityisdirectlyproportionaltotheboundaryloadingandinverselyproportionaltothewavevelocityratio.Inthefarzone,theburieddepthoftheexplosiveonlyhasaslighteffectonthelongitudinalwave,buthasalargereffectontheRayleighwave.

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简介：Thepurposeofthispaperistostudythedynamicbehaviorofsoftgroundincludingaporouslayerbyconsideringtheporositychange.Inordertotaketheporositychangeintoaccount,theconceptofthevolumefraction,whichhasbeenproposedincontinuummechanics,isintroduced.TheconstitutiveequationspresentedbyBowenareappliedtotheanalysisoftheporousmedia.AccordingtoBowen’stheory,theporosityisconsideredasavariablecalledthevolumefractionandhasitsownconsti-tutiveequation.Theconstitutiveequationofthevolumefractionhasthermoelasticequationcoefficientsandisdeterminedbythestrainsofthesolidandthefluid.Thismeansthatthecompressibilitiesofthesolidandthefluidareconsidered.Whenthespecialconditionisassumed,Bowen’stheorycancontainBiots’stheory,whichhasbeenappliedinearthquakeengineering.Thewavepropagationinthegroundincludingaporouslayer,modeledbyBowen’stheory,isstudiedandcomparedwiththatofBiot’stheory.One-di-mensionalattenuationandsurfaceamplitudearecalculated.Theeffectofthevolumefractionisdiscussedwithrespecttothecompressibilitiesofthesolidandthefluid.

简介：在这研究，一个新数学模型被开发二部分创作了，包括为模仿近的差错地面运动的主导的速度脉搏的泛音和多项式表情。基于建议速度功能，为扎根的加速的相应表情和排水量时间历史也被导出。建议模型然后在下一代变细(NGA)工程图书馆用在差错地面运动附近像脉搏的选择的一些被适合。新模型简单处于良好的竟技状态而且与精确的高水平在差错记录附近模仿实际速度的长时期的部分不仅。建议基于模型的有弹性的反应系列与在脉搏的占优势的频率的邻居的近的差错记录兼容，这被显示出。结果显示建议模型足够地模仿时间历史的部件。最后，建议脉搏的精力与实际记录的精力相比证实相容性。