简介：

简介：摘要：伴随着市场经济的快速发展，市场的竞争力也日益的激烈，很多企业都以为只要将企业进行创新，实现创新的发展就可以在市场中占有一席之地，然而却忽略了煤炭企业财务管理内控制度的构建，导致财务情况严重影响了企业的发展。

简介：摘要人的因素在思想政治工作中是最重要的、最直接、最具体的，煤炭企业要将人本理念落实到思想政治工作的全过程，要维护好、实现好、发展好广大职工的根本利益。然而，当前的煤炭企业思想政治工作存在很多问题、受到严峻挑战，加强和改进思想政治工作显得尤为重要，也是构建和谐、可持续煤炭企业的有效手段和必要途径。

简介：摘要：随着社会的快速进步，经济的迅猛增长，煤炭企业劳动定额定员管理水平也在不断提高。在竞争日益激烈的煤炭市场中，做好企业劳动定额定员管理对提高企业的工作效率，保障企业经济效益有着重要的意义。劳动定额定员有利于降低生产成本，避免不必要的浪费，也有利于企业内部管理的标准与协调发展，将人力资源合理地进行配置，将企业责任与任务落实到具体的人员，从而最大程度上保障煤炭企业的整体效益。

简介：摘要：煤炭施工 企业要想有 良好的发展，一定要具有过硬的综合实力和质量品牌，但其中更为重要的是要做好项目成本管理与控制 。煤炭施工 企业生存发展的空间取决于项目的盈利能力，因此，项目成本的管理与控制是企业取得经济效益的重要保证 。

简介：TheanalysisandevaluationofanactualportsystemcontainingRdifferentship’skindsandNsubsystemseachofwhichconsistsofM.(i=1,2,…,N)portsarederived.TheexternalarrivalsofshipstothesystemcomefromRdifferentPoissonsourcesandtheinterarrivalstothequeueofeachportofasubsystemaredeterminedaccordingtoconditionprobabilities.EachporthasmultipleberthswhoseservicetimesaredistributedaccordingtoErlangprobabilitydistributionfunctions.EachportofasubsystemhasRinfinitecapacitybuffersforstoringshipsinterarrived.Thismethodprovidesagoodapproximationprocedureforobtainingsystemperfor-mancemeasuressuchaswaitingtimesofships,averagequeuelengths,etc.Optimumportcapacitycanthusbeevaluatedbyusingthisanalysis.Asimulationisalsopresentedtotestthisapproximateanalysis,andagoodagreementisobserved.Thismodelshallbeusedintheplanningofseveralactualportsystems.Throughtheapplicationofthismodel,itispossibletoanalyzeandevaluateperformancesofthesystems.

简介：Healthcareisindeedacomplexservicesystem,onerequiringthetechnobiologyapproachofsystemsengineeringtounderpinitsdevelopmentasanintegratedandadaptivesystem.Ingeneral,healthcareservicesarecarriedoutwithknowledge-intensiveagentsorcomponentswhichworktogetherasprovidersandconsumerstocreateorco-producevalue.Indeed,theengineeringdesignofahealthcaresystemmustrecognizethefactthatitisactuallyacomplexintegrationofhuman-centeredactivitiesthatisincreasinglydependentoninformationtechnologyandknowledge.Likeanyservicesystem,healthcarecanbeconsideredtobeacombinationorrecombinationofthreeessentialcomponents–people(characterizedbybehaviors,values,knowledge,etc.),processes(characterizedbycollaboration,customization,etc.)andproducts(characterizedbysoftware,hardware,infrastructures,etc.).Thus,ahealthcaresystemisanintegratedandadaptivesetofpeople,processesandproducts.Itis,inessence,asystemofsystemswhichobjectivesaretoenhanceitsefficiency(leadingtogreaterinterdependency)andeffectiveness(leadingtoimprovedhealth).Integrationoccursoverthephysical,temporal,organizationalandfunctionaldimensions,whileadaptationoccursoverthemonitoring,feedback,cyberneticandlearningdimensions.Insum,suchservicesystemsashealthcareareindeedcomplex,especiallyduetotheuncertaintiesassociatedwiththehuman-centeredaspectsofthesesystems.Moreover,thesystemcomplexitiescanonlybedealtwithmethodsthatenhancesystemintegrationandadaptation.

简介：Anonlinearage-dependentpopulationmodel,whichallowsforconsiderationoftheeffectsofcrowdingandresourcelimitation,ispresented.Thebasicpropertiesofsolution,suchasexistence,positivity,uniqueness,andultimatebehavior,arediscussed.Also,theconditionofstabilityandcontroll-abilityofthenonlinearpopulationsystemisobtained.

简介：Thecurrentstudiesonsecurityarchitectureandinformationsystemsecurityarchitecture(ISSA)aresurveyedinthispaper,andsometypesandtheirfeaturesofISSAarediscussed.Then,thestructuralelementsofISSAareanalyzed,andtheconstructingstepsforISSAareproposed.

简介：摘要：随着煤炭行业的快速发展，煤炭施工企业逐渐优化自身的结构体系， 在新的时代背景下，煤炭施工企业内部审计工作的重要性逐渐凸显出来。 随着时间的推移，内审工作问题逐渐出现，作为企业的管理人员，需要采取针对性的策略对其进行解决，以此来保障 煤炭施工企业在行业市场运行 中的健康发展 。

简介：Inthepasttherewerealotofresearchesonthetopicofeconomicgrowth.Nevertheless,theenvironmenthasbeenabitabstractedbystandardeconomics.Scarcenaturalresourcesandourchoicestoprotectthemorexploitthemjointlydeterminetheeconomicandenvironmentalsystems.Inthispaperwedescribeamodelwithaparticularfocusontherelationshipamongincome,pollution,andnon-renewableresources.Wewanttocombinebotheconomicandenvironmentalsectors.Thesystemdynamicsapproachisusedinanalyzingthesecomplexrelationships.Thispapergivesaninsightintothepossibilitiesforreplacingnon-renewableresourceswithmorerenewableones.Next,wepresentthesimulationrunsofthemodelthatareconductedwiththehelpofexistingsystemdynamicsmodelingtools.Onlytherelationshipssimulatedsofarbetweenthevariablesoughttobeputunderyetmorecautiousexamination.

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简介：Inthispaper,supposingthatthereceivedsignalsattheinputareoftheformv（t）=s1[t,x1（t）]s2[t,x2（t）]+n（t）wheresiareFMsignals（i=1,2）,anovelcross-coupledphase-lockedloop（CCPLL（M））anditsmathematicalmodelareobtained.Theglobalqualitativestructuralanalysisofthemathematicalmodelofthefirst-orderloop,theacqui-sitionregionandsynchronizationregionofthefirst-orderloop,andthesynchronizationregionofthesecond-orderloopareobtained.

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简介：Thispaperputsforwardtheideathatsocialsystemisanopencomplexmacrosystemandsummarizeditseightcharacteristics.Theresearchobjectofsocialsystemisalsoanopencomplexmacro-system,thusthecomplextheoryandsystemsthinkingshouldbeappliedtoresearchratherthanthesimplicitytheory.

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简介：ThedesignofanOLAPsystemforsupportingreal-timequeriesisoneofthemajorresearchissues．Oneapproachistousedatacubes，whicharepre-computedmultidimensionalviewsofdatainthedatawarehouse．Aninitialsetofdatacubescanbederived．fromwhichtheanswertoeachfrequentlyaskedquerycanberetrieveddirectly．However，therearetwopracticalproblemsconcerningthedesignofacubebasedsystem：1)themaintenancecostofthedatacubes，and2)thequerycosttoansweraselectedsetoffrequentlyaskedqueries．MaintainingadatacuberequiresdiskstorageandCPUcomputation，Sothemaintenancecostisrelatedtothetotalsizeofthedatacubesmaterialized，andthuskeepingalldatacubesisimpractical．Thetotalsizeofcubesmaybereducedbymergingsomecubes．However，theresultinglargercubeswillincreasethequerycostofansweringsomequeries．Iftheboundsonmaintenancecostandquerycostarestrict．someofthequeriesneedtobesacrificed．Anoptimizationproblemindatacubesystemdesignhasbeendefined．Withamaintenance-costboundandaquery-costboundgivenbytheuser，itisnecessarytoopti-mizetheinitialsetofdatacubessuchthatthesystemcanansweramaximumnumberofqueriesandsatisfythebounds．ThisisanNP-completeproblem．ApproximatealgorithmsGreedyRemoving(GR)and2-GreedyMergingwithMultiplepaths(2GGM)areproposed．Experimentshavebeendoneonacensusdatabaseandtheresultsshowthatourapproachinbotheffbctiveandefficient.

简介：由于市场的快速的变化和比赛的压力，生产公司被强迫改编他们的生产方法支持顾客需要的差异和新产品开发的增加。因为生物有机体相当能够适应环境变化和刺激，启发简历的概念被认出了对适应生产合适系统控制。因此，这份报纸建议启发NeuroEndocrine的生产系统(NEIMS)的一个新奇概念。建议NEIMS控制体系结构与neuro控制和荷尔蒙规定原则基于类比。它有能力明确地包括控制点，材料，信息流动路径和逻辑操作指定生产控制计划，并且活泼地在商店地板水平处理意外骚乱的经常的出现。从控制论观点，NEIMS的控制模型由于外部环境在产品要求显示适应行为到变化并且作为内部环境生产房间失灵。最后，一个原型系统被设置了启用NEIMS模拟。