简介：BaotouResearchInstituteofRareEarths(BRIREhereinafter)wasestablishedin1963.ItisthelargestcomprehensivescientificresearchandtechnologicaldevelopmentinstitutiononrareearthsinChina,coveringthefieldsofrareearthmetallurgy,environmentalprotection,newrareearthperformancematerials,rareearthapplicationinhightechfields,rareearthassayandrareearth

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简介：大规模膜结构的导致风的回答，博览会大街，在这研究被评估。为了在房顶上获得风压力分发，出现，风隧道测试被执行。膜房顶上的风压力的简短分析首先被进行然后结构的导致风的回答的分析在时间领域用一个数字不可分的方法被执行。在计算的过程，几何非线性被考虑。结果显示那个平均数，RSM和当来临的流动速度增加时，回答非线性地增加的结构的山峰价值。强壮的非线性的特征在排水量回答被观察，而节的应力和电报的回答轴的力量看最小的非线性的性质膜结构什么时候被使遭到弯屈负担。因为背景部件是全部的动态反应的主导的部分，反响的部件是太小的，抑制比率的不同价值仅仅在结构的RSM反应上有最小的影响。作为从0.02～0.05的抑制比率增加，垂直排水量，节的压力和电报的RMS回答在8.1%，6.7%和17.9%的轴的力量减少分别地。因为吝啬的部件在导致风的反应起一个重要作用，阵风反应因素的价值不为博览会大街高。

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简介：Doubledataratesynchronousdynamicrandomaccessmemory(DDR3)hasbecomeoneofthemostmainstreamapplicationsincurrentserverandcomputersystems.Inordertoquicklysetupasystem-levelsignalintegrity(SI)simulationflowfortheDDR3interface,twosystem-levelSIsimulationmethodologies,whichareboard-levelS-parameterextractioninthefrequency-domainandsystem-levelsimulationassumptionsinthetimedomain,areintroducedinthispaper.BycomparingtheflowofSpeed2000andPowerSI/Hspice,PowerSIischosenfortheprintedcircuitboard(PCB)board-levelS-parameterextraction,whileTektronixoscilloscope(TDS7404)isusedfortheDDR3waveformmeasurement.Thelabmeasurementshowsgoodagreementbetweensimulationandmeasurement.ThestudyshowsthatthecombinationofPowerSIandHspiceisrecommendedforquicksystem-levelDDR3SIsimulation.

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简介：Inthispaper,anabinitio,localdensityfunctional(LDF)methodwasusedtoexploretherelationshipbetweenthemolecularpropertiesofadditivesandthelubricatingperformanceofaluminumrollingoil.Thestructuralpropertiesofbutylstearate,dodecanol,docosanol,andmethyldodecanoatewerestudiedaccordingtothedensityfunctionaltheory.Thecalculateddatashowedthattheatomsinoraroundthefunctionalgroupsmightbelikelythereactingsites.Becauseofthedifferentfunctionalgroupsandstructureofesterandalcohol,twotypesofcomplexadditives,dodecanolandbutylstearate,methyldodecanoateandbutylstearate,respectively,werechosenforstudyingtheirtribologicalpropertiesandperformingaluminumcoldrollingexperiments.Thetestresultsagreedwiththecalculatedresultsverywell.Thecomplexester,viz.methyldodecanoateandbutylstearate,hadthebestlubricatingperformancewithafrictioncoefficientof0.0841andapermissive-rollingthicknessof0.040mmascomparedwiththatofdodecanol-butylstearate-baseoilformulation.

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简介：ThephysicalandchemicalpropertiesandsoundnessofBaosteelPowerPlant’sdrydesulphurizedflyashweresystematicallyinvestigatedandcomparedwiththoseofthesimilarbyproductsproducedbysomeotherdomesticpowerplants.Thefeasibilityofthesebyproductsusedasaconstructionmaterialwasalsoanalyzed.TheresultsshowthatBaosteel’sdrydesulphurizedflyashisakindofashwithhighcalciumandhighsulfurcontents,whichhasthecharacteristicsofvolcanicashactivity.Itcontainssulfateandsulfite,andiseasytocausesulfateactivation.Ithashigheractivitycomparedwithcommonflyash.Buthighercalciumsulfiteandfree-CaOcontentsinashwillbringaboutsoundnessconcernstousers.Therefore,qualitytestsandvolumecontrolwillbenecessarywhenflyashisusedasaconstructionmaterial.

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简介：Thispaperpresentsthesurveyandresearchworkoftwoland-seaprofilesintheBohaiSea,China,carriedoutin2010–2011,includingtheseismicsourcesonlandandinthesea,theoceanbottomseismographs(OBS)andtheirrecovery,thecouplingofOBSandtheenvironmentnoiseinseaarea,thedataqualityofOBSs,andtheresultofdataanalysis.WefocusedontheinvestigationofcrustalstructuresrevealedbythetwoNE\EW-trendingjointland-seaprofiles.IncombinationwiththePn-velocitydistributionandgravitymagneticinversionresultsintheNorthChinaCraton,weproposethattheundulationoftheMohointerfaceintheBohaiandsurroundingareasisnotstrong,andthelithosphericthinningismainlycausedbythethinningofitsmantlepart.TheresearchresultindicatesthatobviouslateralvariationsofMohodepthandseismicvelocityappearnearbyallthelarge-scalefaultsinBohaiSea,andthereisevidenceofunderplatingandreformingofthelowercrustbymantlematerialintheBohaiarea.However,geophysicalevidencedoesnotappeartosupportthe"mantleplume"or"delamination"modelfortheNorthChinaCratondestruction.ThecrustalstructureoftheBohaiSearevealed"arelativelynormalcrustandobviouslythinnedmantlelid",localvelocityanomaliesandinstabilityphenomenainthecrust.ThesefeaturesmayrepresentacombinedeffectofNorthChina-YangtzecollisionatanearlystageandtheremoteactionofPacificplatesubductionatalatestage.

简介：Becomingtheworld’slargestemitterofcarbonmakesChinatheobjectofcriticism;however,peoplemayignorethefactthatwhenChinaexportslow-carbonproducts,thecarbonemissionshavebeenleftinthemeanwhile,formingtheso-called"embodiedcarbon".Usingtheinput-outputmodel,thispaperanalyzesthecarbonemissionintensityandamountofembodiedcarbonofvarioussectorsinChina’sexporttradein2002and2007,andfiltersouthighcarbonemissionsectors.Inaddition,thispaperalsopointsouttheproblemofcarbonemissions’internationaltransferfromdevelopedcountriestoChinathroughtheanalysisofnationalandregionalflowofexportcarbonemissionsandchangingoftheproportionofemissionsforexportsrelativetototalemissions,andexplainsthereasonthatcausedcarbontransfertoChinabyusingthetreadmillofproductiontheory.Basedonthat,thispaperproposessomemeasuresforcarbonreductioninChinafromtheforeigntradeperspective.

简介：以便在海洋的控制来源压制电视广播噪音电磁(CSEM)数据，我们与合成的孔来源一起建议一个3Ddeconvolution(3DD)interferometry方法并且获得相对异例系数(皇家装甲兵)对表演的EM领域思考回答为压制电视广播的度。我们为压制电视广播分析建议方法的潜力，并且在他们的有效性把建议方法与传统的方法作比较。长度被导出的一个方法到精选合成来源和水深度在上的效果皇家装甲兵经由数字模拟被检验。结果建议与合成来源一起的那个3DDinterferometry方法能有效地压制电视广播并且提高海洋的CSEM的潜力到烃探索。

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