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简介：In1955inAmerica,BillHaleyandHisCometsperformedRockAroundtheClockwhichwasthefirstbighitofthisnewstyleofmusic.Atthebeginning,itwasfirstknowas"rockandroll"andthensimplyas"rock".Itwouldbecomethemostpopulartypeofmusicfromthatpointon.

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简介：你经常从电视上或MP3里听到摇滚乐PET人们为了消除紧张感，去欣赏摇滚乐，从中享受快乐。你了解它的起源、组成与发展吗？

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简介：Anexperimentofuniaxialcompressionwascarriedoutonsamplesof8representativerocktypes.Thetemporalvariationsoftheremanentmagnetization,strainandacousticemissionofsampleswererecordedandinvestigated,especiallywhenthesampleswereunderconstantloadandwhentheyhadjustbeenunloaded.Itwasfoundthatmostsamplesstillshowedchangesoftheirremanentmagnetizationunderconstantloadandthetendencyofthesechangesremainedthesameasthatbeforetheloadhadbeenkeptconstant.Inthemeantime,similarchangesofstrainswereobservedaswell.However,inashorttimeperiodimmediatelyafterthesamplehadbeencompletelyunloaded,thevariationsofremanentmagnetizationandstrainswerestillobserved.Theabovephenomenaseemtobethereflectionofrheologicalpropertiesofrocks.Itisinterestingtonotethatsomesimilarphenomenawerealsofoundinfieldobservations,suchasaseismicgeomagneticchangesandsecularvariationinlocalgeomagneticfieldbeforeandaftere

简介：夜幕降临．空气中传来北欧的声音，来自丹麦的四人流行乐队MichaelLearnstoRock(迈克学摇滚)正把探情款款的歌声带到上海的咖啡厅和酒吧。北欧一直活跃着一批世界顶级的乐队．从丹麦的A-Ha到Aqua，从瑞典的ABBA到Roxette和AceofBase，从挪威的Se

简介：YushuTibetanAutonomousPrefectureissituatedinthesouthwesternareaofQinghaiProvince,thecentralregionoftheQinghai-TibetPlateau.ItconnectswithHaixiMongolianandTibetanAutonomousPrefecturetothenorthandGuoluoTibetanAutonomousPrefecturetotheeast.

简介：Imagine,agroupofpeopleclimbedacliff120metersabovethewatersurfaceandpaintedontherocksmorethan2000yearsago.Suchascenewillneverberecaptured.Today,whatwecandoisonlytolookupattherock.andallowourimaginationfly……

简介：【摘要】目的：观察表没食子儿茶素没食子酸酯 (EGCG)对 D-半乳糖诱导的阿尔茨海默病（ AD）模型大鼠 Rho/Rho相关卷曲螺旋形成蛋白激酶（ ROCK）通路的影响。 方法：对照组给予常规饲料及蒸馏水喂养，模型组给大鼠 150mg/kg*d皮下注射 D-半乳糖，连续 42天，制备 AD大鼠模型。造模 14天后，第二组给予生理盐水灌胃，第三组给予 0.04%EGCG2mg/kg*d灌胃，连续 28天，前后分别采用 Morris水迷宫检验大鼠的行为变化，制作 HE染色切片，免疫组化检测 β 淀粉样蛋白和 ROCK的表达。 结果： Morris水迷宫测试中，模型组大鼠的平均逃避潜伏期显著高于 EGCG组和西药组。 对照组、 EGCG组和西药组大鼠的 β 淀粉样蛋白显著低于模型组大鼠（ P ＜ 0.05）； 对照组、 EGCG组和西药组大鼠的 ROCK蛋白的表达显著高 于模型组大鼠。 模型组大鼠的 SOD、 GSH-Px水平显著低于 EGCG组和 西药组（ P ＜ 0.05）。 结论： EGCG可能通过抑制 β 淀粉蛋白和激活 ROCK的表达水平，增加 SOD、 GSH-Px表达来改善其认知障碍。

简介：Faultisacomplexdynamicsystemcontrolledbythecouplingofrocktexture,reaction,fluidflow,stress,androckdeformationmechanism.Acoupledreaction-transport-mechanicaldynamicmodelforfaultsystemisestablishedanddescribedinthispaper.AnexampleispresentedfortheShuikoushandeposit,Hunan.Theresultsofdynamicsimulationindicatethattheevolutionandmagnitudeoffracturepermeabilityofdifferentrocksaredifferent,andthatfaultingcanenhancethespatialheterogeneityofrockpermeabilityandfacilitatefluidflowandmineralizationinlocalfaultzone.Thepressureforafaultusuallyshowsavariationmodeofaperiodicoscillationwithtime,whichreflectsthechaoticbehavioroftheevolutionofafault.

简介：在中国，喜爱流行音乐的人占多数；可是在美国，喜欢摇滚的人最多，其次是说唱音乐和乡村音乐。邦妮·瑞特是美国的著名摇滚歌手，谁又是中国当红的摇滚巨星呢？

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简介：岩石块的排水量和岩石结构的性质在隧道的稳定性起一个重要作用。基于关键块模型，受到集中的短时间的有压缩性的波浪的地下的隧道的动态不稳定性分析被进行。分裂和惯性的效果引起的隧道的不稳定性被区分。并且隧道的房顶轮廓弯曲的影响也被决定。

简介：StabilizedorChebyshevexplicitmethodshavebeenwidelyusedinthepasttosolvestiffordinarydifferentialequations.MakinguseofspecialpropertiesofChebyshev-likepolynomials,thesemethodshavefavorablestabilitypropertiescomparedtostandardexplicitmethodswhileremainingexplicit.Anewclassofsuchmethods,calledROCK,introducedin[Numer.Math.,90,1-18,2001]hasrecentlybeenextendedtostiffstochasticdifferentialequationsunderthenameS-ROCK[C.R.Acad.Sci.Paris,345(10),2007andCommun.Math.Sci,6(4),2008].InthispaperwediscusstheextensionoftheS-ROCKmethodstosystemswithdiscretenoiseandproposeanewclassofmethodsforsuchproblems,theT-ROCKmethods.Onemotivationforsuchmethodsisthesimulationofmulti-scaleorstiffchemicalkineticsystemsandsuchsystemsarethefocusofthispaper,butournewmethodscouldpotentiallybeinterestingforotherstiffsystemswithdiscretenoise.TwoversionsoftheT-ROCKmethodsarediscussedandtheirstabilitybehaviorisanalyzedonatestproblem.ComparedtotheT-leapingmethod,asignificantspeed-upcanbeachievedforsomestiffkineticsystems.Thebehavioroftheproposedmethodsaretestedonseveralnumericalexperiments.

简介：地震计算断层摄影术(CT)方法从节扫描首先在医药科学使用了的X光检查的基本原则被导出。方法在分开的地上凿穿记录在射击和接收装置之间的P波浪到达。用从2D的速度信息地震P波浪到达倒置，我们能在岩石和土壤身体中决定速度的分发。这篇论文介绍使用地震CT方法为隧道工程并且到检测岩石的结构的一个实际盒子为做第一到达时间反复的倒置利用SIRT算法。与另外的探索方法相比，它更有效、精确。

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简介：Geothermalenergyisapreciousresource,whichiswidelydistributed,varied,andabundant.Chinahasenteredaperiodofrapiddevelopmentofgeothermalenergysince2010.Asshallowgeothermalenergypromoting,thedepthofhydrothermalgeothermalexplorationisincreasing.ThequalityofHotDryRock(HDR)andrelatedexploratorytechnologiesarebetterdevelopedandutilized.Onthebasisofgeothermaldevelopment,thispaperreviewsthegeothermalprogressduringthe"12thFive-YearPlan",andsummarizestheachievementsofhydrothermalgeothermalandhotdryrocksfromgeothermalsurveyandevaluationaspects.Finally,theauthorspredictthedevelopmenttrendofthefuturegeothermalresearchtobenefitgeothermalandhotdryrockresearch.

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