简介:Inthispaper,antiplaneresponseofanisoscelestriangularhilltoincidentSHwavesisstudiedbasedonthemethodofcomplexfunctionandbyusingmovingcoordinatesystem.Thestandingwavefunction,whichcansatisfythegoverningequationandboundarycondition,isprovided.Furthermore,numericalexamplesarepresented;theinfluencesofwavenumberandangleoftheincidentwavesandtheangleofthehill'speakongroundmotionarediscussed.
简介:Thepatternofthesubtletraps,inwhichoilandgasaccumulated,intheburied-hillfaultedzoneintheJiyangsagisverycomplicated,andveryhardtoprospect.Thepaperanalysesthemaindifficultiesinexploringthecomplicatedburied-hillfaultedzoneoftheareafromapointofgeology.Thetypicalpatternoftheburied-hillzoneintheJiyangsagisstudiedusingtheforwardmodeling.Target-orientlayoutdesignandfull3-Dseismictechnology,whichareusefulforoilandgasexplorationonthezone,areputforward.Takingtheexplorationforoilandgastrapsonthezoneasanexample,certaintechnologiesandtheeffectoftheirapplicationsaboutthedesignfortargetacquisition,acquisitiononawide-azimuth,pointsourcesandpointreceiversarediscussed.
简介:AnanalyticalsolutionforscatteringofplanePwavesbyasemi-cylindricalhillwasderivedbyusingthewavefunctionexpansionmethod,andconvergenceofthesolutionandaccuracyoftruncationwereverified.Theeffectofincidentfrequencyandincidentangleonthesurfacemotionofthehillwasdiscussed,anditwasshownthatahillgreatlyamplifiesincidentplanePwaves,andmaximumhorizontaldisplacementamplitudesappearmostlyattheinclinedincidenceofwaves,whicharelocatedatthehalf-space;andmaximumverticaldisplacementamplitudesemergemostlyattheverticalincidenceofwaves,whicharesituatedatthehill.
简介:AnanalyticalsolutionforscatteringofincidentSHwavesbyacircular-archillwithaconcentriccirculartunnelwasderivedbyFourier-Besselseriesexpansionandauxiliaryfunctionstechnique.Thesolutionisreducedtosolvingasetofinfinitelinearalgebraicequationsfinally.Theaccuraciesofthenumericalresultsarecheckedbytheresidualerrorsofboundaryconditionswiththetruncationorderincreasing.Thenumericalresultsshowthattheexistenceanddimensionofthetunnelhavegreateffectonmotionofthegroundsurfacenearbyanddynamicstressconcentrationofthetunnel.
简介:ThispaperpresentstheHillinstabilityanalysisofTensionLegPlatform(TLP)tetherindeepsea.The2-Dnonlinearbeammodel,whichisundergoingcoupledaxialandtransversevibrations,isapplied.ThegoverningequationsarereducedtononlinearHillequationbyuseoftheGalerkin'smethodandthemodessuperpositionprinciple.TheHillinstabilitycharteduptolargeparametersisobtained.AnimportantparameterMisdefinedandcanbeexpressedasthefunctionsoftetherlength,theplatformsurgeandheavemotionamplitudes.Someexamplestudiesareperformedforvariousenvironmentalconditions.Theresultsdemonstratethatthenonlinearcouplingbetweentheaxialandtransversevibrationshasasignificanteffectontheresponseofstructure.ItneedstobeconsideredfortheaccuratedynamicanalysisoflongTLPtethersubjectedtothecombinedplatformsurgeandheavemotions.
简介:AnoilflowobtainedfromtheMiddleOrdovicianFengfengFormationcarbonatereservoirinthewellKG-3,Kongxiburial-hillzonein1993markedabreakthroughinpetroleumexplorationofthehigh-matureLowerPalaeozoicstrata,NorthChina.BoththeLowermemberoftheFengfengFormationandtheSecondMemberoftheUpperMajiagouFormationintheMiddleOrdovicianaresupposedtobethemainsourcebeds.Oilgenerationpeaksrangefrom1.0%to1.6%inRo,showinga搇ageffect?ofoilgenerationinhigh-maturecarbonatesourcerocksundermulticyclictectonicmovementconditions.TheKongxiburial-hillzoneadjoinsapotentialOrdoviciansourcekitchen.TheKG-3Ordovicianburial-hillreservoirhasundergonetwooilfillingevents,i.e.,anearlyeventintheLateCarboniferous-PermianandamoresignificantlateeventintheearlyEogene.
简介:摘要:现代科技的发展在促进商业迅猛发展的同时也给商家带来信息泄漏的风险,为了更好地保护商家的个人以及其他私人信息,对视频监控进行商用密码技术加固显得尤为重要。目前我国视频监控厂商在商用密码技术视频监控产品的产品研发还属于初始阶段,如果想兼顾视频监控与信息安全之间的关系,就需要在现有视频监控以及加密方式的基础之上明确规定视频监控信息系统的密码技术算法,为市场上的商用视频监控设备以及相关系统提供可靠支持,形成系列产品并促进相关企业的健康发展。
简介:摘要:现代科技的发展在促进商业迅猛发展的同时也给商家带来信息泄漏的风险,为了更好地保护商家的个人以及其他私人信息,对视频监控进行商用密码技术加固显得尤为重要。目前我国视频监控厂商在商用密码技术视频监控产品的产品研发还属于初始阶段,如果想兼顾视频监控与信息安全之间的关系,就需要在现有视频监控以及加密方式的基础之上明确规定视频监控信息系统的密码技术算法,为市场上的商用视频监控设备以及相关系统提供可靠支持,形成系列产品并促进相关企业的健康发展。
简介:摘要:文章针对电子招投标交易平台的信息化建设要求,介绍了电子招投标领域的商用密码应用情况。通过对电子招投标业务需求的分析,依据《电子招标投标办法》等法律法规,为电子招投标交易平台提供安全认证、数字签名、数据加密等电子认证技术服务,主要解决了电子标书的保密性、完整性、真实性和标书制作内容的不可否认性等诸多信息安全问题,并以商用密码技术对招标人、招标代理机构、投标人、评标专家等多方交易主体进行身份验证,并对招投标数据进行处理,实现招标、投标、开标、评标、异议与答复、定标、签约等线上全流程的信息加密/解密、签名/验签、电子签章等功能服务,确保用户的身份真实可靠、数据安全保密和完整可靠,保障电子招投标的公平、公正、公开。
简介:【摘要】新疆是全国离海洋最远的城市,蔚蓝的大海总是让人心驰神往。地域条件的制约并不能影响我们对海洋的向往,在新疆,我们有林海、沙海、星海、雪海,更重要的是,我们有花海。花海是建设美丽乡村的一个展示点,既能够给人们带来欣喜,也能够带动当地经济的发展。