简介:FormerlyagreatempirebuthavingsufferedalongperiodofoppressionbyWesternimperialistsafter1840,Chinaisverysensitiveaboutitsautonomy.CurrentlyseparatedfromthemodernworldorderdominatedbytheWest,Chinaneedstointegrateitselfintothis.So,thecoreproblemofChinesediplomacyisfindingabalancebetweenintegratingChinaintothemodernworldorderandmaintainingitsautonomy.Withinthisframework,IputforwardanewinterpretationofChineseforeignpolicysince1949.
简介:摘要:在世界能源短缺和传统动力转型的大背景下,太阳能是一种重要的清洁能源,目前制约太阳能发电的最大瓶颈是太阳利用率低。传统新型磁感 STC太阳能跟踪装置虽在一定程度上提高了太阳能的利用率,但均存在着适用性和局限性。“新型磁感 STC太阳能跟踪装置”,安装了增强型 51内核芯片( STC12C5412AD)单片机控制电路,并以磁传感器进行电路驱动,具有加密性好、超强抗干扰、高抗静电、性能稳定和超低功耗等优点。因而,此装置具有很大的应用潜力,如果成功进军市场,将大大提高新型磁感 STC太阳能跟踪装置的供给质量,更好的满足广大人民群众的需要,有效促进供给侧改革。
简介:Atransformertypeironcoresnubber,asaprotectivedeviceagainstthestraycapacitanceduringthebreakdowninEAST,isanalyzedindetail.Threekindsoftopologyarepresented.Thenwiththeanalysisforequivalentcircuit,therangesofthreekeyparameters,i.e.,secondarysideresistance,leakageinductanceandsnubberinductance,aredetermined.Byconsideringthesaturationofthemagneticmaterial,adesignprincipleisalsopresented.Anearly1:10coresnubberistested.Itisprovedthatahighpermeabilitycorewithsecondaryresistorcanrestrainthedischargecurrenteffectively.
简介:Asamaincomponentofinternationalhumanrightsdocuments,theUnitedNationscorehumanrightsconventionsshowobviousformalandsubstancecommonalities.TheformalcommonalitiesconsistintheirbeingadoptedbyUNGeneralAssemblyandtheirsimilarityinstructure,subjectsandsystems.Theircommonalitiesinsubstanceincludethesimilarityofcontents,thehomogeneityoftheproceduralmechanismsandthecomplementarynatureoftheirnormativeinterpretation.ThecommonalitiesamongtheUN’scorehumanrightstreatiesistheinevitablerequirementoftheuniversalityandwholenessofhumanrights.
简介:为了与僵硬学习负担转移机制和混合堆积的适用的能力,核心(MPSC)被插入预制增强的具体堆积(PRCP)形成,在原处测试与不同长度,直径,水水泥比率和PRCP包含MPSC,水泥混合了堆积,并且钻洞堆积,被执行。限制适用的能力,负担解决曲线和MPSC的压力分发,混合堆积被获得。在水泥土壤和PRCP之间的负担转移被有限元素方法分析(女性)。测试结果和女性的分析证明MPSC充分从从外部顶装进转移内部水泥的PRCP的混合堆积和高压缩强度玷污的水泥利用了大磨擦,并且那插入进混合堆积的PRCP改变混合堆积的压力分发并且改进在混合堆积和土壤之间的摩擦抵抗。长度和MPSC的节区域onPRCP两个都有最佳价值。采用MPSC在改进软土壤地面的适用的能力是有效的。
简介:Core-shellstructurednanosphereswithmesoporoussilicashellandNicore(denotedasNi@meso-SiO2)arepreparedthroughathree-stepprocess.MonodispersedNiprecursorsarefirstprepared,andthencoatedwithmesoporousSiO2.FinalNi@meso-SiO2spheresareobtainedaftercalcination.TheproductsarecharacterizedbyX-raypowderdiffraction,transmissionelectronmicroscopyandN2adsorption-desorptionmethods.Thesesphereshaveahighsurfaceareaandarewelldispersedinwater,showingahighcatalyticactivitywithaTOFvalueof18.5,andoutstandingstabilityinhydrolyticdehydrogenationofammoniaboraneatroomtemperature.
简介:Corecompetitivenessisthesourceofcompetitiveadvantagesaswellastheguaranteeofvaluegrowthoftheenterprise.Thispaperdiscussesthecauseoftherisksofthecorecompetitivenessofenterprisesandthewestenterprise,introducesanalyticalmethodsoftherisksofthecorecompetitivenessandmeasuresguardagainsttherisksofthecorecompetitiveness.
简介:ExplainingthecausesofinfeasibilityofBooleanformulashasmanypracticalapplicationsinelectronicdesignautomationandformalverificationofhardware.Furthermore,aminimumexplanationofinfeasibilitythatexcludesallirrelevantinformationisgenerallyofinterest.Asmallest-cardinalityunsatisfiablesubsetcalledaminimumunsatisfiablecorecanprovideasuccinctexplanationofinfea-sibilityandisvaluableforapplications.However,littleattentionhasbeenconcentratedonextractionofminimumunsatisfiablecore.Inthispaper,therelationshipbetweenmaximalsatisfiabilityandmini-mumunsatisfiabilityispresentedandproved,thenanefficientantcolonyalgorithmisproposedtoderiveanexactornearlyexactminimumunsatisfiablecorebasedontherelationship.Finally,ex-perimentalresultsonpracticalbenchmarkscomparedwiththebestknownapproacharereported,andtheresultsshowthattheantcolonyalgorithmstronglyoutperformsthebestpreviousalgorithm.
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简介:有在粒子的核心的高carboxyl内容的没有肥皂的吸水恐水病的核心壳乳胶粒子经由播种乳剂被综合聚合使用甲基methacrylate(MMA),丁基acrylate(BA),甲基丙烯酸(MAA),苯乙烯(圣)和乙烯乙二醇dimethacrylate(EGDMA)作为单体,并且在聚合,粒子尺寸和形态学上在核心准备使用的MMA内容的影响被传播电子显微镜学调查,动态轻散布结果证明播种乳剂聚合能用当在核心准备的MAA内容是时,喂过程的饥饿的单体顺利被执行平等者到或不到24wt%,并且有恐水病的PSt壳的吸水的P(MMA-BA-MAA-EGDMA)核心的包含的效率随MAA内容的增加减少了。当有中等极性的P(MMA-MAA-St)的夹层在P(MMA-BA-MAA-EGDMA)核心和PSt壳之间被插入时,井在核心准备与24wt%MAA内容设计了没有肥皂的吸水恐水病的核心壳乳胶粒子被获得。