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简介：Inthepast,evaluationsofecosystemfunctionsweremostlybasedonCostanza'smodel,whereasthespatial,qualityandtemporalcharacteristicsofregionalecosystemswerenotconsideredinthemodel.Focusingontheseissues,coefficientsofregionaldifference,spatialheterogeneityandwillingness-to-pay(WTP)wereestablishedtomodifyCostanza'smodel,andanewcomprehensivevaluationmodelofecosystemfunctionsisproposed.TheanalyticalresultsindicatethatthecomprehensivemodelcouldevaluateregionalecosystemfunctionsinChinaaccuratelyandprovidemorehelpfulinformationfordecision-making.TheempiricalstudyonZhangbeiCountyinHebeiProvinceshowsthattheintensivehumanactivitiescouldlimittheprovisionofecosystemfunctionswhiletheplannedecologicalprogramsmightpromotetherestorationofecosystemfunctions.

简介：Theproblemofhouseholdsolidwastehasbeenconcernedandresearchedonbymunicipalitiesandresearchers.Atpresent,householdsolidwastehasbeenchangedtomanagementproblemfromtechnicalone.Fromthepointviewofmanagement,theresearchonhouseholdsolidwasteistostudythefactorswhichinfluenceresident’sbehaviorofmanagingtheirwaste.Basedontheliteraturereview,firstly,thispapersummarizesthosefactorswhichhavealreadybeenidentifiedtohaveimpactonresident’sbehaviorofmanagingtheirwaste.Theyaresocial-demographicvariables,knowledge,environmentalvalues,psychologicalfactors,publicityandsystemdesign.Secondly,threetypicalmodelsoftherelationshipbetweenfactorsandbehavior,whicharefactorsdeterminingtaskperformanceinwastemanagement,conceptualizationofwastemanagementbehaviorandthetheoreticalmodelofrepeatedbehavioronhouseholdwastemanagement,areanalyzedandthedeficienciesofthesemodelsarealsoanalyzed.Finally,accordingtothecurrentsituationinhouseholdwastemanagementandthecultureandresident’shabitsinChina,thispaperputsforwardaresearchfocusandsuggestionsaboutresident’sbehaviorofhouseholdsolidwastemanagement.

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简介：Toreversethecontinuousdeteriorationofgrasslandecologyandtoimprovethewell-beingofherders,Chinahasbeenformulatingmanynationalpoliciesonpaymentsforgrasslandecologicalconservation.Oneofthem,theGrasslandEco-compensationPolicy(GEP),isthebiggestprogramforgrasslandprotectioninChinasince1949.TheGEPconservesnaturalgrasslandbypayingherderscashsubsidies.Italsohasworldwidesignificancebecauseitcanincreasevegetativecover,improvetheecologicalbalance,increasecarbonsequestrationandlessentheamountofdustreachingothercountriesthroughinhibitingsoilerosion.Overall,wefindthatitsecologicalandsocioeconomiceffectsarebeneficialandfurtherbenefitsmaybeobservedinthefuturebecausewhilethesocioeconomiceffectsusuallyappearquickly,ecologicaleffectsmaytakelongertomanifest.2015isthelastyearforthefirstroundoftheGEPpolicyimplementationandtheextendedpolicyfortheGEPwillbeapprovedandcontinuedbythecentralgovernment.Tomakethepolicymoresuccessful,wesuggestcoordinatedplanning,acomprehensiveoverview,highercompensationandcollaborativestudy.EfficientimplementationoftheGEPcouldalsoprovidevaluableexperienceforothereco-compensationprogramsinChinaandnumerousotherregionsoftheworld.

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简介：在全球金融危机尚未退潮、世界各国正在努力寻找提振经济的良方以及地区和全球面临新的传统与非传统安全挑战的背景下．奥巴马入主白宫后的首轮“中美战略与经济对话”（S＆ED）在华盛顿隆重举行，这一全新的对话机制’高级别的对话规格、空前的对话阵容和广泛的对话议题．引起了国际舆论和国际社会的空前关注。

简介：传统的书面考试方式成本高、效率低,也不利于计算机的自动管理。而采用基于B/S模式的网上考试系统则具有很多优势,如收发试卷快捷、随机出题、自动判卷等。为使网上考试系统具有实用性,在系统结构的设计中一定要对功能的划分和组织进行周密的考虑,与传统考试的流程进行科学的整合,并使用合适的技术和工具进行开发。

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简介：差级运筹──企业融资妙法薛韬差级是一种社会现象，它是由客观事物发展的不平衡性所引起的．在社会上万事万物之间的内部经常会呈现出大小，多少、远近、高低、快慢等不同性质的差异，差级就是这些差异量化所表现出来的梯次级．所谓差级运筹，是指某个主体为了一定的目的...

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简介：Thisarticleconsiders30provincesofChinaasthecross-sectionsubjects,andutilizesthedatasamplefrom2009to2015ofthesecross-sectionstoformulateaSpatialPanelDataDurbinModeltoanalyzetheeffectofenvironmentalregulationonemployment.Theresultindicatesthatenvironmentalregulationhasnegativeeffectonemploymentwiththeconsiderationofspatialspillovereffect,andthisadverseeffectisnotsignificantmathematically.Withtheenhanceofenvironmentalregulation,thenegativeimpactonemploymentwilldecreaseaccordingly,evenmayeventuallypromotejobgrowth,whichmeanstheremaybeanon-linearrelationshipbetweenthem.Specifically,thedirecteffectofenvironmentalregulationonemploymentindicatesthatitisbeneficialforjobgrowthwhereastheindirecteffectillustratethatitisdetrimentalforemployment.

简介：Therelationshipbetweentheemissionofpollutantandeconomicgrowthhasattractedalotofattentionintheenvironmentaldebateoftherecentdecades.BasedonsometheoreticalandempiricalresearchonenvironmentalKuznetscurve(EKC),thispaperintroducestheenvironmentaltechnicalinnovationandenvironmentalinvestmentintoSolowgrowthmodeltodiscusstherelationshipbetweenGDPpercapitalandtheemissionofpollutant.Bythedynamicsimulationandparametersanalysis,theresultsofthemodelindicate:(1)when'green'technicalprogressandenvironmentalinvestmentarefixed,therelationshipbetweenGDPpercapitalandtheemissionshowsthelinearrelationship;(2)'green'technicalprogresscanleadtothepositivegrowthrateswithadecreasinglevelofemis-sion,whichiscompatiblewithanEKC;(3)theproportionoftheenvironmentalinvestmentcanleadthedifferentgrowthratesandlevelofemission.Theseresultscanexplainthatdevelopingcountriesare'toopoortobegreen'.

简介：通过对选课制和教务需求的全面了解，基于三层B／s结构，总体分析和设计了一套稳定的高校选课系统。现今高校大多采用学分管理模式，学分制又和选课制相伴而生，因此从高校教务的实际情况出发，基于三层B／s结构，利用志愿分级筛选、购物车等技术，分析、设计一套稳定的、高效的高校选课系统可使选课的公平性和系统的稳定性得到保障。