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  • 简介:在不完全的市场中,融资约束是困扰着企业经营发展的重要因素,文章通过梳理与融资约束相关的文献,尝试结合我国制度环境从微观(会计稳健性)及宏观(金融发展)两方面对缓解融资约束的作用机制进行理论分析,并得出结论,在此基础上,结合新疆地区企业现状给出新疆企业融资约束的对策建议。

  • 标签: 融资约束 会计稳健性 金融发展 一带一路经济带
  • 简介:Intheair-waterquantumkeydistribution(QKD),theirregularseasurfacehassomeinfluenceonthephotonpolariza-tionstate.Thewindisconsideredasthemainfactorcausingtheirregularity,sothemodelofirregularseasurfacebasedonthewindspeedisadopted.Therelationshipsofthequantumbiterrorratewiththewindspeedandtheinitialincidentanglearesimulated.Therefore,themaximumsecuretransmissiondepthofQKDisconfirmed,andthelimita-tionofthewindspeedandtheinitialincidentangleisdetermined.Thesimulationresultsshowthatwhenthewindspeedandtheinitialincidentangleincrease,theperformanceofQKDwillfalldown.Undertheintercept-resendattackcondition,themaximumsafetransmissiondepthofQKDisupto105m.Torealizesafecommunicationsinthesafedivingdepthofsubmarines(100m),theinitialincidentangleisrequestedtobenotexceeding26~,andwiththeinitialincidentan~leincreased,thelimitationofwindspeedisdecreased.

  • 标签: IRREGULAR sea surface quantum key distri-aution
  • 简介:AbstractIn order to effectively implement the Tianjin Biosecurity Guidelines for Codes of Conduct for Scientists, biosecurity awareness-raising and education are essential because if these are not in place scientists will not understand the need for biosecurity codes of conduct. In an effort to assist in the implementation of the guidelines, a small-scale survey was carried out in early 2022 of biosecurity awareness-raising and education projects that have been developed over the last two decades to discover what resources and experience have been accumulated. It is argued that the survey demonstrates that much of what is needed to implement the guidelines effectively has been developed, but that there are specific deficiencies that need to be remedied quickly. In particular, an updated teaching resource covering the core issues related to the Biological and Toxin Weapons Convention (BTWC) and the problem of dual use in scientific research needs to be made widely available and translated into at least the six official United Nations (UN) languages. Additionally, more specialists from the Humanities with expertise in ethics need to become involved in biosecurity awareness-raising and education activities. While advantage should be taken now of the available national, regional and international networks of people involved in related activities, it is suggested that in the longer term cooperation in biosecurity awareness-raising and education will benefit from the development of an equivalent organisation to the International Nuclear Security Education Network (INSEN) organised through the International Atomic Energy Agency (IAEA).

  • 标签: Tianjin Biosecurity Guidelines Biosecurity education Survey Biological and Toxin Weapons Convention (BTWC)
  • 简介:Researchonnewtypesofcastables,pre-castassemblypartsandthermalinsulationmaterialswithgoodresistancetowear,thermalshockanderosion,andlowthermalconductivity,wasdonetosolveproblemsofhighsystemenergyconsumption,crackingandspallingofpartialliningandmismatchoffurnacetopmaterialandhangingmaterialandsoon,causedbyunreasonabledesignofChina'sAl(OH)3dilutephasefluidizedbedroastingfurnacelining.Severaldifficultproblemssuchasthematchingofdifferentmaterials,preservationofexpansionjointsamongdifferentzonesandreasonablemechanicaldistributionofliningweresolved.'Integratedfurnace'conceptwasestablishedincludingrefractoriesR&D,liningstructuredesign,constructionoptimization,furnacewarmingtechnology,initialoperationandliningmaintenancetechnology.Thekeytechnologiesofhigh-efficiencyandenergy-savingforfurnacesweredeveloped.TheseachievementshavebeenappliedtoChina'sAl(OH)3dilutephasefluidizedbedroastingfurnacestoreduceenergyconsumptionby1000MJpertonalumina,enhancethecapacityandreducetheexhaustgasemission.

  • 标签: AL(OH)3 流化床 能源效率 稀相 烧烤炉 技术
  • 简介:DuringtheEighthFive-YearPlanperiod,ShaanxiProvinceintensifiedtherestructuringofinvestmentandmacro-controlinfixedassetsinvestmentbyimplementingthepolicyof"limitingtotalamount,readjustingstructure,rectifyingorderandimprovingefficiency".ThewholeprovincerealizedRMB110billioninfixedassetsinvestment,(includingRMB86.5billionbystate-ownedunits,RMB14.23billionthroughloansfromtheconstructionbank,makingup16.5percent),RMB67billionmorethanintheSeventhFive-YearPlanperiod,withanannualincreaseof26.5percent.Thankstothesupport,agroupofmedium-to-largeandkeyprojectshavebeenputinto

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  • 简介:SPSS13.0wasusedtoprocessthedataofthe1-6batchofkeyculturalrelicconservationunitspromulgatedbytheStateAdministrationofCulturalHeritageofChina;andmulti-elementevaluationmethodwasusedtocalculatethecompositedistributionindex.ThespatialdistributionofculturalrelicsofprovincesinChinacanbedividedintofourgrades,namely:veryrichareas,richareas,poorareasandverypoorareas;thearticleanalyzesthecharacteristicsofculturalresourcesinspatialandtemporaldistribution.Thepaperholdsthat(1)thedistributionofChina'sculturalrelictourismresourcesisrelativelyconcentrated,differentsharplyfromregiontoregion,withmoreHannation'sheritage,lessrelicsoftheethnicminorities;(2)Henan,Hebei,Shaanxi,ShanxiProvincearethemainregionswithheavydistributionofculturalresources;(3)relicsappearedinspecifictimeperiodsinChina'shistory.MingandQingDynasties,Sui,TangandFiveDynasties,Song,LiaoandJin,theWesternHan,ShangandZhoudynasties,theNewStoneAgearethemajorperiodsproducingmoreculturalrelics.Thispaperalsoanalyzesrelationshipsoftheemergenceofculturalrelicswithproductiontechnology,specifichistoricalprocess,specificgeographicallocation,politicalsystem,religion,nationalculture,customs,architecturalstylesandtechniquesofthetraditionalculturaleducationalsystem.Finally,thepaperdiscussesthedevelopmentandprotectionofheritage.

  • 标签: 国家文物局 中国文化 开发与保护 旅游资源 重点文物保护单位 特征
  • 简介:Bystudyingthetraditionalspectralreflectancereconstructionmethod,spectralreflectanceandtherelativespectralpowerdistributionofalightingsourcearesparselydecomposed,andtheorthogonalpropertyoftheprincipalcomponentorthogonalbasisisusedtoeliminatebasis;thenspectralreflectancedataareobtainedbysolvingasparsecoefficient.Aftertheoreticalanalysis,thespectralreflectancereconstructionbasedonsparsepriorknowledgeoftheprincipalcomponentorthogonalbasisbyasingle-pixeldetectoriscarriedoutbysoftwaresimulationandexperiment.Itcanreducethecomplexityandcostofthesystem,andhascertainsignificancefortheimprovementofmultispectralimageacquisitiontechnology.

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  • 简介:Withparametricdown-conversionsources(PDCSs),thenonorthogonaldecoystateprotocolbasedononevacuumandtwoweakdecoystatesispresented.ThedetectioneventsonBob'ssidearedividedintotwogroupsdependingonwhetherAlicegetsatriggerornot:triggeredcomponentsandnontriggeredcomponents.Thetriggeredcomponentsareusedtoestimatethefractionsanderrorratesofsingle-photonandtwo-photonpulses,andthenthefinalsecurekeyrateisdeduced.Besides,bothtriggeredandnontriggeredcomponentsareusedtodeduceamoreaccuratevalueofthekeygenerationrate.Thesimulationofthefinalkeygenerationrateovertransmissiondistanceshowsthatthefirstmethodcanobtainakeygenerationrateclosetothetheoreticallimitoftheinfinitedecoystateprotocol,whilethesecondmethodisbetter.

  • 标签: 量子密钥分发 参量下转换 非正交 诱骗 真空状态 安全密钥
  • 简介:随着多宗网络银行犯罪事件的发生,网上银行安全越来越被人重视,如何才能加强系统应用的安全性,提升人们对网上银行的信任度,成为网上银行业务中最亟待解决的问题,本文为读者带来指纹U-KEY,以供大家参考。

  • 标签: 身份认证系统 网络银行 指纹 网上银行业务 安全性 信任度
  • 简介:Background:Accelerometershavebeensuggestedtoprovideadditionalinformationduringthe6-minwalktestwhichmaybeusefulinevaluatingchangesinfunctionalexercisecapacity.TheaimofthestudywastoidentifywhethertheadditionalinformationmeasuredbytheMyWellnessKey~(TM)(MWK)accelerometerduringatreadmill6-minwalktest(t-6MWT)wasrelatedtocurrentlyusedoutcomemeasures.Methods:Fifteenparticipants(9males,6females)performedaself-pacedt-6MWT.RespiratorygasanalysisandwalkingdistanceweremeasuredwhilstwearingtheMWK.Results:Asignificantcorrelationwasestablishedbetweenactivitycountsand6-minwalkdistance(6MWD)(r=-0.847,p<0.001)yetnot6-minwalkwork(6MWW)(r=-0.337,p=0.220).EnergyexpenditureestimatedbytheMWKwasstronglycorrelatedto6MWW(r=0.938,p<0.001)butnot6MWD(r=0.477,p=0.072).TheMWKsignificantlyunderestimatedenergyexpenditure(36.73,CI=33.9-39.7kcal)comparedtogasanalysis(54.35,CI=46.2-61.4kcal)demonstratingpooragreementbetweenthetwoanalyses(Bias=-17.61kcal,Limitsofagreement=-37.4,t2.2kcal).Measurementoftimespentundertakinglight,moderate,andvigorousphysicalactivitywasnotsignificantlydifferent(p>0.05)betweentheMWKandgasanalysis.Conclusion:EstimatedenergyexpenditureprovidedbytheMWKwasstronglycorrelatedto6MWW;however,MWKunderestimatedenergyexpenditureasmeasuredbygasanalysis.TheMWKmayprovideoutcomedatathatsupplementthosecurrentlyprovidedbythe6MWDforfunctionalcapacityassessmentduringthet-6MWT.

  • 标签: 加速度计 跑步机 健康 试验 TM 气体分析
  • 简介:会计人员的自我约束,即是作为一名会计人员应如何自觉地按照《会计法》的要求和为人民服务的宗旨,自己约束自己,为国家、集体、职工用好权、掌好权。会计人员如何自我约束,笔者认为江泽民同志所倡导的干部要“自重、自省、自警、自励”的四自原则对会计人员是很适用的。所谓自重,就是注重自己的言行,珍惜自已的名誉。会计人员掌握着比一般人更多的管钱管财的特殊权力,这种权力是人民所赋予的,会计人员理应在自己的岗位上发挥一技一能之长。自重是相对于自轻自贱而言的。在改革开放的今天,在拜金主义、享乐主义不良风气袭来的情况下,我们的确看到有些会计人员自轻自贱。比如,有人不能正确对待手中的权力,以权谋私;有人陶醉于外面的花花

  • 标签: 会计人员 自我约束 《会计法》 自轻自贱 为人民服务 财经纪律
  • 简介:为了改善广义旁瓣抵消(GSC)语音增强方法的性能,提出了一种带有泄漏约束的判决反馈旁瓣抵消(LCDF—GSC)方法.采用DF—GSC方法以解决GSC对波达方向敏感的问题,在代价函数中引入泄漏因子,以此改善语音失真的问题,而这种问题是由于噪声参考信号中含有语音成份造成的.试验结果表明,尽管经过LCDF—GSC处理后的语音信号信噪比要略低于DF—GSC,IS测度表明这时前者的语音信号失真度要小于后者.MOS分也表明LCDF—GSC方法要优于DF—GSC和单通道Weiner滤波算法.

  • 标签: 语音增强 广义旁瓣抵消 语音泄漏
  • 简介:女儿7岁,从幼儿园开始,就是个贪嘴又臭美的家伙。只要一上街,所见到好吃的、好玩的、好看的,统统都要,把我们当成了ATM机,想买就取钱,不给就哭闹耍无赖,直到你忍无可忍乖乖答应,她才会破涕为笑,乐颠颠庆祝又一次“抢劫”成功。

  • 标签: 自我约束 孩子 ATM机 幼儿园