简介：纸象精力生产，消费和工业废物水的全部的分泌物的严肃中心的变化的决心一样在所有省和自治区域论述全部的精力生产和消费的预言，经由从1978～2009的精力和在由美国通用汽车公司(1,1)模型和严肃中心模型，纸也在精力产品处于地区性的差别基于分析动态变化的使用的中国的环境优秀数据的中国的气体和残余结果如下被显示出。1)精力生产的严肃中心逐渐地正在移动向西南并且全部运动轨道接近到线性变化，显示在东方和西方，南方和北方之间的精力生产的差别正在变窄到某个程度，在南方和北方之间比那快与东方和西方之间的差别变窄。2)精力消费的严肃中心正在移动与可察觉的变化，从2000～2005的严肃中心位置是相对稳定的与细微年度位置变化，基本上显示所有省和自治区域的生长率是向西南一样。3)工业废物水，气体和残余的全部的分泌物的严肃中心被变化在经度和纬度描绘到某个度。但是，它总体上显示出一个向西南的趋势。4)在精力生产与中国，和工业废物水的全部的分泌物的和那的严肃中心的比较分析的消费的严肃中心的变化课程有共同点和差异，气体和残余证明环境优秀水平仔细与精力生产和消费(特别精力消费)被联系，显示在精力的经济的环境费用在中国是更高的。

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简介：TheRelationshipbetweensexratioatage0to4andaltitudeinChinaisquantitativelyinvestigatedbyusingGeographicalInformationSystem(GIS)technologyinthispaper.Theresultsshowthatthecountieswithhighsexratioatage0to4in1990and2000aremainlydistributedontheeastofthewell-knownChinesepopulationdivision,Anhui-Tengchongline,andthereishighnegativecorrelationbetweensexratioatage0to4andaltitudeinChinesecounties.Therearehighestsexratioatage0to4intheregionsunder100meters,butthisratioover3200metersfallsintothenormalrange.Andthesexratioatage0to4continuestofalldownwhenthealtituderises.Sothegeographicalenvironmentevidentlyaffectsthesexratioatbirth.Thereishighersexratioatbirthinlower-altituderegions.Theeffectwithaltitudemaybeassociatedwiththeambienttempeture.

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简介：Inthispaper,weconsiderthespectrumsharingCognitiveRadio(CR)system,whereinSingle-InputMulti-Output(SIMO)cognitivefadingchannelisassumed.Subjecttotheaveragein-terferenceconstraintofprimaryuser,theergodiccapacityofcognitiveuserinvolvingjointbeamformingandpowercontrolisanalyzed.Wederivetheoptimaljointbeamformingandpowercontrolstrategyanddeducethegeneralintegralexpressionforergodiccapacity.Furthermore,underdifferentchannelfadingsincludingRaleighfading,Nakagami-mfadingandLognormalshadowingfading,thespecificexpressionsofergodiccapacityforSIMOcognitivechannelareexhibited.Mostoftheexpressionsarepresentedinclosed-formorwithsomespecialintegralfunctions.Largeamountofsimulationsareconductedtocorroborateourtheoreticalresults.

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简介：Roadmapping,originatedfromindustryasastrategicplanningtool,isattractingincreasingapplicationsinacademy.Basedontherecognitionthatroadmappingisaknowledgecreationprocess,thispaperanalyzeswhatkindofsupportisneededorhelpfulforestablishingacreativeenvironmentforroadmappinginacademyandreviewsvarioustypesofsuchsupportfromtheperspectiveofi-systemmethodology.Ascasestudiesofsuchsupport,thispaperfurtherintroducesroadmappingpraticesinJanpanAdvancedInstituteofScienceandTechnology.

简介：BasedontrawlsurveysintheBeringSeaandChukchiSeaduringthe2010ChineseNationalArcticResearchExpedition,fishbiodiversitycharacteristics,suchasfishcomposition,dominantspecies,biodiversity,andfaunalcharacteristicswereconducted.WealsodiscussedtheresponsesoffishestothequickchangesinArcticclimate.Theresultsshowedthatatotalof41speciesin14familieswererecordedinthesewaters.ThedominantspecieswereHippoglossoidesrobustus,Boreogadussaida,Myoxocephalusscorpius,Lumpenusfabricii,andArtediellusscaber.Therewere35coldwaterspecies,accountingfor85.37%,andsixcoldtemperatespecies,occupying14.63%.Thehabitattypesoffishcouldbegroupedasfollows:35speciesofdemersalfishes,fivebenthopelagicfishes,andonepelagicfish.TheShannon–Wienerdiversityindex(H)(rangebetween0and2.18,1.21onaverage)wasnothigh,anddescendedfromsouthtonorth.ClimatechangehascausedsomefishestoshiftalongtheirlatitudinalandlongitudinaldistributionaroundtheArcticandSubarcticareas,andthiscouldleadtothedeclineofArcticfisheryresources.

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简介：增加的环境了解和紧环境规定激发了许多公司把ecodesign合并到产品开发。帮助公司探讨挑战，这研究为环境(DfE)介绍一个图案评估并且改进衍生物消费者电子产品开发使用的方法论背繁殖为由到理想的答案(TOPSIS)的类似的顺序偏爱的神经网络(BPNN)模型和一种技术方法。基于BPNN的使用，生命周期评价(LCA)模型被开发为一个衍生物消费者估计危险化学物质和精力消费的数量在整个产品生命周期的电子产品。为DfE的一个表演评估和改进模型然后基于TOPSIS方法被设计分析ecodesign表演并且提供具体改进策略。与环境性能的上述的分析，一家企业能深刻地与类似的竞争产品相比理解并且显著地提高一个新产品的相对DfE表演。最后，我们作为一个盒子使用一个光老鼠发展工程详细描述并且示威建议方法论的有效性。这些分析结果能让我们理解评价的DfE表演并且为一个新产品的每个模块获得每个DfE标准的最大的减少的数量。同时，提高新产品的绿竞争力，我们建议工程师应该减少新产品的电路板的区域。另外，为新产品的USB电报的材料应该从PVC材料被交换到PE材料。

简介：WeinvestigatedthecompositionofplantcommunitiestoquantifytheirrelationshipswithenvironmentalparametersintheChitralHindukushrangeofPakistan.WesampledtreevegetationusingthePointCenteredQuarter（PCQ）methodwhileunderstoryvegetationwassampledin1.5-mcircularquadrats.CedrusdeodaraisthenationalsymbolofPakistanandwasdominantinthesampledcommunities.Becauseenvironmentalvariablesdeterminevegetationtypes,weanalyzedandevaluatededaphicandtopographicfactors.DCA-Ordinationshowedthemajorgradientasanamalgamofelevation（p〈0.05）andslope（p〈0.01）asthetopographicfactorscorrelatedwithspeciesdistribution.SoilvariableswerethefactorsofenvironmentalsignificancealongDCAaxes.However,amongthesefactors,Mg2＋,K＋andN2＋contributednotmorethan0.054%0.20%and0.073%,respectively,tovariationalongthefirstordinationaxis.Weconcludethattheprincipalreasonforweakornocorrelationwithmanyedaphicvariableswastheanthropogenicdisturbanceofvegetation.Theunderstoryvegetationwascomposedofperennialherbsinmostcommunitiesandwasmostdenseunderthetreecanopy.Theunderstoryvegetationstronglyregulatestreeseedlinggrowthandregenerationpatterns.Werecommendfurtherstudyoftheunderstoryvegetationusingpermanentplotstoaiddevelopmentofforestregenerationstrategies.

简介：Althoughchemicalcontrolofpestsincreasescropproduction,itbringsalotofdamagetoenvironmentandhumanhealth.Thereexistanumberofalternativemethodsthatarenotsoharmfultoenvironmentandhumanhealth.However,whetherandhowmuchinextentthesetechnologiesadoptedareplausibledependsonthecomparisonofbenefit-costbetweenchemicalcontrolandthealternativecontrolmethods(suchasIntegratedPestManagement,IPM)andfarmers'willingness-to-pay(WTP)forenvirormentandhumanhealth.Usingcontingentvaluationmethod(CVM),theauthorinvestigatesfarmers'WTPforenvironmentandhumanhealth,recognizesthefactorsinfluencingWTP,andaccordinglypointsouttheimportanceofpestcontroltechnologyextensionandgovernmentregulationofpesticides.

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简介：Toremovethescatteringeffectofthedisturbingsoundonthetargetsourcewhenimplementingnearfieldacousticholographyinanon-freefield,afreefieldrecoverytechniquebasedonthesphericalwavesuperpositionmethodisproposed.Inthemethod,thesoundfieldseparationtechniquebasedonthesphericalwavesuperpositionmethodisfirstusedtoseparatetheincomingandoutgoingfields,andafurtherstepforseparatingtheradiatedandscatteredfieldsisperformedbyutilizingthesurfaceadmittanceofthetargetsourceastheboundaryconc1ition.Thetechniquemakesitpossibletocorrectlyidentifynoisesourcesinanon-freesoundfeld.Thebasicprincipleofthetechniqueisdescribedfirstly,amethodforchoosingtheoptimalnumberofsphericalwaveexpansiontermsisgiven,andtwonumericalsimulationsareusedtodemonstratethevalidityofthistechnique.Itisshownthat,forthelowerfrequency,thescatteringeffectcanbeneglected,andtheradiatedfieldofthetargetsourcecanbeobtainedbythesoundfieldseparationtechnique,however,astheincreasingofthefrequcncy,thescatteringeffcctcannotbeneglected,andthefrecfieldrecoverytechniquehastobeusedtoobtaintheradiatedfieldofthetargetsource.

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简介：Natureinspiredsolutionsenablebiologicalsystemstoadaptandaccomplishtheirtasksinverynoisyanduncertainenvironments.Takinginspirationfromnature,anovelbacteriacontrollercapableoffindingthesourceofpollutioninanunderwatermediumturbulentenvironmentispresentedinthispaper.Experimentsprovethatthecontrolleriscapableofperformingpollutionsourceexploration,pollutionplumetransverseandsourcedeclarationinamediumPecletenvironmentwithoutdistinctivelyseparatingthesethreecomponentsasmostresearchersdid.Theresultsobtainedfromtheseexperimentsareconsideredasasteptowardsthedeploymentofroboticfishinahighlyturbulentmarineenvironment.Finally,abriefconclusionandfutureextensionarepresented.

简介：Basedonthecharacteristicsofwaves,tidalcurrents,sedimentandseabedevolutionintheCaofeidianseaareaintheBohaiBay,a2Dsedimentmathematicalmodelofwavesandtidalcurrentsisemployedtostudythedevelopmentschemesoftheharbor.Verificationofspringandneaptidalcurrentsandsedimentinthewinterandsummerof2006showsthatthecalculatedvaluesoftidalstagesaswellasflowvelocities,flowdirectionsandsedimentconcentrationof15synchronousverticallinesareingoodagreementwiththemeasureddata.Also,depositionanderosionoftheseaareainfrontofCaofeidianoreterminalinducedbysuspendedloadundertidalcurrentsandwavesareverified;itshowsthatthecalculatedvaluesofdepthofdepositionanderosionaswellastheirdistributionareclosetothemeasureddata.Furthermore,effectsofreclamationschemeofislandinfrontofthelandbehindCaofeidianharboronthehydrodynamicenvironmentarestudied,includingchangesofflowvelocitiesinthedeepchannelsatthesouthsideofCaofeidianforelandandLaolonggouandinvariousharborbasins,aswellaschangesofdepositionanderosionofseabedinducedbytheproject.

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