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  • 简介:Rareearthworkingconferenceofkeyprovinces(autonomousregionsandmunicipalities)andmainrareearthenterpriseswasheldinBeijingonJanuary28.Mr.SUBo,viceministeroftheMinistryofIndustryandInformationTechnologyattendedthemeetingandmadeakeynotespeechof'StandardizingManagement,TransformationandUpgrading,andAchievingSustainableandHealthyDevelopmentofRareEarthIndustry'.

  • 标签: 土工 稀土企业 持续健康发展 管理部门 稀土产业 研究机构
  • 简介:当审计师无法确证公司的财务报表具有公正表达性时,the auditor certifies that the audited financial statements are prepared in accordance with of the Generally Accepted Accounting Principles (GAAP) and are able to fairly presentthe company's financial position at the end of the financial year and its performance as well as the changes in financial positions for the financialyear. An unqualified audit report is also known as a "clean" report. The BS is the statement that presents the company's financial position at the year-end. The company's performance and changes in financial positions for the year are respectively presented by the IS and the SCFP. For a financial year,公司在财务年度里的经营成果和财务状况变动的情况则分别由损益表及财务状况变动表来表达

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  • 简介:Environmentalissues,mainlytheglobalwarming,theozonelayerdepletion,theacidrain,theairandwaterpollution,thedesertification,andthelossofbiodiversity--havecaughtattentionoftheentirehumanrace.Itisnowuniversallyacknowledgedthatenvironmentalprotectionisapoliticalandsocialproblemaswellasaneconomicone.Itinvolvesvarioussectorsofthenationaleconomyandsohasanimportantbearingonsustainableeconomicandsocialdevelopmentofallnations.

  • 标签: 气门
  • 简介:当审计师无法确证公司的财务报表具有公正表达性时,the auditor certifies that the audited financial statements are prepared in accordance with of the Generally Accepted Accounting Principles (GAAP) and are able to fairly presentthe company's financial position at the end of the financial year and its performance as well as the changes in financial positions for the financialyear. An unqualified audit report is also known as a "clean" report. The BS is the statement that presents the company's financial position at the year-end. The company's performance and changes in financial positions for the year are respectively presented by the IS and the SCFP. For a financial year,公司在财务年度里的经营成果和财务状况变动的情况则分别由损益表及财务状况变动表来表达

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  • 简介:Employmentisthebedrockofpeople’slivelihood.atthebeginningofthisyear,theCommunistPartyofChina(CPC)andtheChinesegovernmentpaidcloseattentiontotheissueofemployment,whichisrelatedtothevitalinterestsofmillionsofpeople.huJintaorecentlyemphasizedatthe13thgroupstudysessionofthePoliticalBureauoftheCentralCommitteeoftheCPCthatweshouldimplementamore

  • 标签: 就业问题 弱势群体 中国政府 CPC 共产党
  • 简介:Withafluctuating2008comestoanend,nownew2009hasap-proachedtous.Recently,AnalYsisandForecastofChinaEcon-omyin2009(BlueBookofChinaEconomy),bytheEconomicsDepartmentofChineseAcademyofSocialSciences.therelatedgovernmentaldepartments,researchinstitutesandexpertsandscholarsfromdomesticwell-knowncollegesanduniversities,wasissued.Thisauthorityre-portgaveanalysisofthesehotissuesanddifficultiesin2008Chinaeconomic

  • 标签: 中国 经济发展 经济政策 蓝皮书
  • 简介:Forestcertificationhasdevelopedveryquicklyacrosstheworldasoneofthemostimportantmarketinitiativetopromotesustainableforestmanagement(SFM).Itssuccessandeffectivenessareinfluencedbysomekeyfactors,includingcredibility,costeffectiveness,certificationstandard,effectiveness,equitableness,government'sroleandlaws/regulationsframework.ThepaperanalyzedthesekeyfactorstothesuccessofforestcertificationandputforwardrelevantsuggestionsandadvicesforChinatod...

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  • 简介:LedbyfourgenerationsofleadershipfromlateProf.JIANGSichang(academician,ChineseAcademyofEngineering),Prof.YANGWeiyan(HonoraryPresident,DivisionofOtolaryngologyHeadandNeckSurgery,ChineseMedicalAssociation),Prof.HANDongyi(PresidentElected,DivisionofOtolaryngologyHeadandNeckSurgery,ChineseMedicalAssociation)tonowProf.YANGShiming(President,DivisionofOtolaryngologists,

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  • 简介:Lightweightdesignisoneofthedevelopmenttrendsoftheautomobileindustry.AneffectivewaytoachievelightweightautobodiesistouseAHSS(advancedhighstrengthsteel)forthesafetycomponentsofautomobiles.ThisstudyhastakendoorsillreinforcementsmadeofmartensiteAHSSastheobject,andperformedresearchontheAHSSrollformingtechnologiesandprototypedevelopmentoftypicalasymmetricopencomponents.Bymeansoffiniteelementanalysis(FEA)andsimulation,studieshavebeencarriedoutonthespringbackandedgewavedefectsduringAHSSrollforming,andanoptimizedprocessdesignhasbeenachieved.Thegenerationmechanismsofverticalbows,horizontalcambers,twists,pre-punchedholedistortionandcutendflarehavebeenanalyzed,andsolutionstothesedefectshavebeengiven.Inaddition,tesingoftherollformingprocessforAHSShasbeenconductedandtypicalsampleswithrequireddimensionalaccuracyhavebeenmanufactured.Thisstudyhasprovidedtechnicalsupportforthelarge-scaleapplicationofAHSS.

  • 标签: 高强度钢 汽车零部件 技术支持 轻量化设计 轧辊 成形过程
  • 简介:Large-scaleMIMO(multiple-inputmultiple-output)systemswithnumerouslow-powerantennascanprovidebetterperformanceintermsofspectrumefficiency,powersavingandlinkreliabilitythanconventionalMIMO.Forlarge-scaleMIMO,thereareseveraltechnicalissuesthatneedtobepracticallyaddressed(e.g.,pilotpatterndesignandlow-powertransmissiondesign)andtheoreticallyaddressed(e.g.,capacitybound,channelestimation,andpowerallocationstrategies).Inthispaper,weanalyzethesumrateupperboundoflarge-scaleMIMO,investigateitskeytechnologiesincludingchannelestimation,downlinkprecoding,anduplinkdetection.Wealsopresentsomeperspectivesconcerningnewchannelmodelingapproaches,advanceduserschedulingalgorithms,etc.

  • 标签: MIMO技术 多输入多输出 信道估计 模式设计 上行链路 频谱效率
  • 简介:随机的地震倒置是geostatistics和从地震记录,井木头,和geostatistics把信息集成到表面下的模型的以后的概率密度功能(PDF)的地震倒置技术的联合。Markov链蒙特卡罗(MCMC)方法被用来取样以后的PDF,表面下的模型特征能被分析推断一套以后的PDF样品。在这份报纸,我们首先介绍随机的地震倒置理论,讨论并且分析四个关键参数:地震数据signal-to-noise比率(S/N),variogram,以后的PDF样品数字,和井密度,并且建议这些参数的最佳选择。分析结果证明地震数据S/N调整在地震数据的影响之间的妥协,倒置上的geostatistics结果,variogram控制倒置结果的光滑,以后的PDF样品数字决定统计特征的可靠性源于样品,并且很好,密度影响倒置无常。最后,在随机的地震倒置之间的比较和确定的模型基于地震倒置显示随机的地震倒置能提供表面下的特性的更可靠的信息。

  • 标签: 地震反演理论 关键参数 随机 概率密度函数 优化 地下模型
  • 简介:Inordertoovercomethepoorlocalsearchabilityofgeneticalgorithm,resultinginthebasicgeneticalgorithmistime-consuming,andlowsearchabilityinthelateevolutionary,weusethegraycodinginsteadofbinarycodingatthebeginningofthecoding;weusemulti-pointcrossovertoreplacetheoriginalsingle-pointcrossoveroperation.Finally,theexperimentshowsthattheimprovedgeneticalgorithmnotonlyhasastrongsearchcapability,butalsothestabilityhasbeeneffectivelyimproved.

  • 标签: 改进遗传算法 关键帧提取 局部搜索能力 gray编码 基本遗传算法