简介：ＳｅｉｓｍｉｃａｎｉｓｏｔｒｏｐｙｂｅｎｅａｔｈＳｏｕｔｈｅｒｎＴｉｂｅｔＱＩＮＧ－ＴＩＡＮＬＵＩ（吕庆田），ＫＡＩ－ＹＩＭＡ（马开义），ＭＥＩＪＩＡＮＧ＇（姜枚），Ａ．ＨｉｒｎａｎｄＡ．Ｎｅｒｃｅｓｓｉａｎ（ＩｎｓｔｉｔｕｔｅｏｆＭｉｎｅｒａｌＤｅ...

简介：Propagationthroughstress-alignedfluid-filledcracksandotherinclusionshavebeenclaimedtobethecauseofazimuthalanisotropyobservedinthecrustanduppermantle.Thispaperexaminesthebehaviorofseismicwavesattenuationcausedbytheinternalstructureofrockmass,andinparticular,theinternalgeometryofthedistributionoffluid-filledopeningsSystematicresearchontheeffectofcrackparameters,suchascrackdensity,crackaspectratio(theratioofcrackthicknesstocrackdiameter),porefluidproperties(particularlyporefluidvelocity),VP/VSratioofthematrixmaterialandseismicwavefrequencyonattenuationanisotropyhasbeenconductedbasedonHudson'scracktheory.Theresultshowsthatthecrackdensity,aspectratio,materialfiller,seismicwavefrequency,andP-waveandshearwavevelocityinthebackgroundofrockmass,andespeciallyfrequencyhasgreateffectonattenuationcurves.Numericalresearchcanhelpusknowtheeffectofcrackparametersandisagoodsupplementforlaboratorymodeling.However,attenuationislesswellunderstoodbecauseofthegreatsensitivityofattenuationtodetailsoftheinternalgeometry.Somesmallchangesinthecharacteristicsofporefluidviscosity,porefluidscontaininggasandliquidphasesandporefluidscontainingclaycaneachalterattenuationcoefficientsbyordersofmagnitude.Someparameterscontrollingattenuationarethereforenecessarytomakereasonableestimations,andanisotropicattenuationisworthstudyingfurther.

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简介：ＴｈｅｖａｒｉａｔｉｏｎｓｏｆｔｈｅｄｅｇｒｅｅｏｆｇｒｏｕｎｄｒｅｓｉｓｔｉｖｉｔｙａｎｉｓｏｔｒｏｐｙｄｕｒｉｎｇｔｈｅＴａｎｇｓｈａｎｅａｒｔｈｑｕａｋｅＴｏｎｇ－ＥｎＭＡＯ（毛桐恩）；Ｔｉｅ－ＣｈｅｎｇＷＡＮＧ（王铁成）；Ｊｉａ－ＬｉｕＹＡＯ...

简介：这篇论文在小粒的材料的行为上论述micromechanical研究在下面限制砍使用一个三维的分离元素方法(DEM)。我们在DEM代码在球形的粒子之中把旋转抵抗看作说明粒子形状的效果的一个近似方法。在undrained下面砍，它被发现抵抗旋转可以帮助增加一个小粒的系统的shear力量并且提高它的抵抗到液化。在有不同起始的条件的小粒的系统的内部结构和anisotropy的进化描绘区分二张接触子网的一个清楚的bimodal字符。面对旋转抵抗，好关联在一种分析stress-force-fabric关系和DEM结果，正常力量anisotropy在起一个主导的作用之间被发现。在与小粒的anisotropy的关系的批评状态和液化状态的唯一的性质也被探索并且讨论。

简介：Stimulatedbyioncyclotronresonancefrequency(ICRF)heatingandneutralbeaminjection(NBI)heatingwhichcangenerateanisotropyintemperatureandtemperaturegradientofionsintokamakexperiments,Migliuolofirstinvestigatedeffectsofiontemperatureanisotropyoniontemperaturegradient(ITG)drivenmodesinashearlessslabconfiguration.

简介：Ａｚｉｍｕｔｈａｌ　ａｎｉｓｏｔｒｏｐｙ　ｉｎ　ｌｉｔｈｏｓｐｈｅｒｅ　ｏｎ　ｔｈｅ　Ｃｈｉｎｅｓｅ　ｍａｉｎｌａｎｄ　ｆｒｏｍ　ｏｂｓｅｒｖａｔｉｏｎｓ　ｏｆ　ＳＫＳ　ａｔ　ＣＤＳＮ（郑斯华）（高原）Ａｚｉｍｕｔｈａｌａｎｉｓｏｔｒｏｐｙｉｎｌｉｔ...

简介：在当螺线部分导致铁电体极化时，沿着圆锥形的轴的旋转部件形成磁化的地方，圆锥形的旋转顺序与固有的磁电的联合拥有multiferroicity。蒙特卡罗模拟用古典海森堡尖晶石表现了(AB2O4)模型揭示一份多重圆锥形的旋转订单，即，有A上的不同的锥角度和波长的三调整地点和二个交替的B地点。旋转顺序不仅作为扎根的状态存在而且在一个更大的参数区域稳定地局部地幸存。整个存在范围能被anisotropy有效地扩展盖住CoCr2O4和MnCr2O4。多重圆锥形的旋转顺序被挫折和anisotropy很好在整个存在范围上维持并且细微地调节了，并且磁性并且铁电体性质相应地被影响。

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简介：Thepaperdescribesapermeametertestmethodfordeterminationofthehydraulicconductivity(AT)alongmulti-directionsinfluvialsedimentswithcrossbeddings.Unlikeexistingin-situpermeametermethodsthatdeterminehydraulicconductivityforsubmergedstreambeds,ourmethodwasintendedtomeasurehydraulicconductivityofexposedstreambedsorfluvialsediments.ThemethodwasappliedtotheWeiRiver,ShaanxiProvince,CentralChinaforcharacterizationoftheanisotropyofKinawell-sortedfluvialsediment.Theresultsillustratedthateveninwell-sortedsediments,cross-beddingandsedimentfabrication(ortexture)canleadtovariedKvaluesalongdifferentmeasurementdirections.TheKvaluewasthelargestalongthedipdirection(orthemajordirection)thatisparalleltotheorientationofcrossbeddingandthesmallestinthedirectionperpendiculartothebedding(ortheminordirection).TheKvalueinagivendirectionbetweenthemajorandminordirectionoftenfellintherangeboundedbytheKvaluesinthemajorandminordirections.TheanisotropyratioofK(theratioofKvaluebetweenthemajorandminordirections)intwotrenchesforthiswell-sortedfluvialsedimentwasupto1.14to1.23,respectively.Ourresultsalsodemonstratedthatevenforwell-sortedsediments,theKvaluesbetweentwosamplingpointsonlyabout10cmapartcandiffer.ItisclearthattheKdistributionstronglycorrelatestothebeddingorientation.

简介：Thedependenceofperpendicularmagneticanisotropy(PMA)onthebarrierlayerMgOthicknessinMgO/CoFeB/Tamultilayersisinvestigated.TheresultsshowthatthestrongestPMAoccursinasmallwindowofabout2-4nmwiththeincreaseofMgOthicknessfroml-10nm.ThecrystallinedegreeofMgOandthechangeofinteratomicdistancealongtheout-of-planedirectionmaybethemainreasonsforthechangeofPMAinthesemultilayers.Moreover,theroughnessesof2-and4-nm-thickMgOsamplesare3.163and1.8nm,respectively,andboththesamplesshowPMA.TheseresultscouldbeusedtotunethemagneticcharacteristicoftheultrathinCoFeBfilmforfutureapplicationsinperpendicularmagneticdevices.

简介：Theplasticanisotropyofsheetmetalisusuallycausedbypreferredorientationofgrains,developedbymechanicaldeformationandthermaltreatment.Inthepresentstudy,aTaylor-likepolycrystalmodelsuggestedbyAsaroandNeedlemanisappliedtoinvestigatetheevolutionoftheanisotropicbehaviorofafacecenteredcubic(FCC)polycrystallinemetal,whichithasundergoneaplane-straincompressionthatrationallysimulatesthecoldrollingprocessofFCCpolycrystallinepurealuminium.ByusingtheTaylor-likepolycrystalmodel,polefiguresareobtainedtodescribethetexturedevelopmentofpolycrystallineaggregateafterplane-straincompression,andthentheplasticanisotropyofpolycrystallineaggregateisevaluatedbystretchingthepolycrystallineaggregateindifferentdirectionintermofyieldstress.Accordingtotheresults,thecontoursoflongitudinalflowstressinthree-dimensionalorientationspacearegivenandanalyzed.ExperimentresultssimilartothepredictionofplanaranisotropycanbefoundintheliteraturewrittenbyTakahashietal.thatindirectlyshowthecorrectnessofthepredictionofnon-planarplasticanisotropybythisanalysis.

简介：Theforwarddegeneratefour-wavemixinggeometrywasemployedtoinducemicrostructureinanorganicfreefradicalazobenzenepolymerfilm.BeforeirradiatedwithAr^+laserbeams(λ=514.5nm),theazobenzeneorganicfreeradicalpolymerexhibitsmagneticisotropicmeasuredbysuperconductingquantuminterferencedevice,Afterphoto-inducedmicrostructure,thepolymerfilmbecomesmagneticanisotropy,WhentheappliedmagneticfieldH+50Gauss,themanetizationalongthenormaldirectionofthePolymerfilmisMz=5.5×10^-5emu/g,whichislargerthanMx=4.1×10^-5emu/ginthedirectionparalleltothepolymerfilm.

简介：为做调整的GaAs/Al0.3量井用解决时间的magneto-Kerr旋转大小被学习的Ga0.7。电子旋转松驰时间和它的在里面飞机anisotropy作为光学地注射的电子密度的功能被学习。而且，Rashba的相对力量和联合的Dresselhausspinorbit回答，并且这样观察旋转松驰时间anisotropy，被532nm的另外的刺激进一步调节连续波浪激光，经由一个光gating方法表明有效旋转松驰操作。

简介：AnumberofaftershocksoftheMay10th1997,Zirkuh(Ghaen-Birjand)destructiveearthquakehavebeenusedtoinvestigatetheanisotropyintheuppercrustbyobservingshearwavesplitting.Particlemotiondiagramandaspectratiomethodswereusedastwodifferentapproachestoobtainsplittingparameters.Clearshearwavesplittingwasobservedontherecordsoftheselectedaftershocks,indicatingthatthemediaintheregionwashighlyanisotropic.Byusingparticlemotionmethod,thedirectionoffastshearwavewasfound22°N±19°E,whilethedelaytimebetweenthefastandslowshearwaveswasobtainedtobe(65±16)ms.Byaspectratiomethod,thedirectionoffastshearwavewasdeterminedtobe35°N±18°Eandthedelaytimebetweenfastandslowshearwaveswasfoundtobe(49±10)ms.Forasimplehorizontallayerwithathicknessabout5kmanduniformlydistributedanisotropy,astressalignedcracksmodelwasusedandtheresultwasinterpretedintermsofverticalalignedcracksinthedirectionofN22°E,havingadensityabout0.01.Itisassumedthatcracksarefluid-filledsincetheyarelocatedintheuppercrust.Finally,byusingHudsoncracksmodelforthreecrackdensities0.005,0.01,0.03,thevelocitycurvesofshearwavewereplottedasafunctionofanglebetweenthesymmetricalaxisofcracksandtheazimuthofsourcetoreceiver.Itwasconcludedthatwhenshearwavewaspolarizedparalleltothecracksurface,thevelocitywasuniform,butthevelocitycurvevariedclearlyifshearwavewaspolarizedperpendiculartothecracksurface.

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简介：Ultrafast各向异性的腐烂是揭示ultrafast精力和电子转移的一个突出的参数；然而，由于平行和垂直极化的腐烂动力学的同时的可获得性的要求可靠地坚定是困难的。现在，各向异性的腐烂的任何测量是准确同时性的一种途径。这里，我们为同步ultrafastanisotropy腐烂大小报导一个新奇方法，它能很好决定anisotropy，甚至在一很早的时间，作为刺激激光脉搏的升起的阶段。在与协调刺激在房间温度在答案收获Rhodobactersphaeroides的天线建筑群LH2的细菌的光的B850的各向异性的腐烂被这个方法检测，它显示出30fs的一极化反应时间，并且到在B850戒指的bacteriochlorophylls的从起始的刺激的精力转移拿大约70fs。在吸收光谱的红方面被探查的各向异性的腐烂例如880nm，有0.4的起始的价值，相应于模仿的排放，当有0.1的anisotropy的蓝方面贡献漂白的地面状态时。我们的结果证明盖住整个戒指的协调刺激可能没由于LH2碎的对称被认识到：从在到在答案的C2对称的膜的C9对称。

简介：疲劳行为在期间高测试的周期疲劳和5A06铝的张力的行为就anisotropy而言的合金被学习。标本的二种类型包括的纵的标本(与滚动平行方向)并且横向的标本(对滚动方向垂直)被准备。红外线的thermography被采用到监视温度进化在疲劳和张力的测试期间。在二个方向的温度进化曲线对比地被分析。它被发现温度进化在疲劳过程期间拥有四阶段：起始的温度上升舞台，慢温度衰落阶段，快速的温度上升阶段，和物件顶端的装饰物温度衰落舞台。产生四个阶段的机制的热被讨论。明显的差别罐头在疲劳力量在纵的标本和横向的标本之间被发现并且使生活疲劳。纵的标本的疲劳力量和疲劳生活比横向的标本的那些高。在期间张力并且疲劳测试过程，在横向的方向的破裂温度在纵的方向比那高。借助于红外线的thermography的疲劳力量预言由传统的方法与那有好一致性。