简介：AlthoughChenChunyu,theheadofourtourgrouphadtoldusto,getreadybyeighto'clock,XiuXiuandIwokeupasearlyassix;webothfeltsoexcited.

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简介：我们在场在Hoare风格节目逻辑的标准标记打扫无用单元收集程序的保守变体的机器级的实现的确认。收集者的说明用分离逻辑在一个机器级的存储模型上被给，并且是足够强壮的保存任何普通mutator节目的安全性质。我们的确认充分在Coq证明助手被实现并且能作为带证明的代码包装的foundational立即被包装。我们的工作向造充分证明的生产质量无用单元收集程序做重要尝试。电子增补材料这篇文章(doi:10.1007/s11390-007-9049-z)的联机版本contatins增补材料，它对授权用户可得到。

简介：Bisphenolscontaininglongaliphatichydrocarbonsidechainsweresynthesizedbythecondensationofphenolwithaldehydeorketoneinthepresenceofheteropolyacid.TheirstructureswerecharacterizedbyIR,1HNMR,13CNMRandelementanalysis.Theexperimentresultsshowthatwhenheteropolyacidwasusedasacatalyst,thesebisphenolswereobtainedinhighselectivityandhighyields.

简介：Basedontheretrospectionofresearchesoncarryingcapacity,thisarticlereviewedsystematicallytheresearchprogressesoncarryingcapacityofrelativeresources(CCRR).ThentheviewpointwasputforwardthatCCRRisnotanappropriatemethodofappraisingtheregionalsustainability,butasoundwaytoobtaincognitionforcoordinatingspatiallocationandflowofpopulationandeconomy.However,asthemostpopularcomputingmethodofCCRR,theWeightingLinearSumModelisdefectiveintherandomofweightchoiceandtheneglectofmatchingamongdifferentresources.Therefore,thisarticleestablishedtheGeometricModelonCCRRbasedonmodifyingWeightingLinearSumModel,whichcanbeusedtoappraiseregionswhereresourcesareclosematching.EmployingtheGeometricModel,thearticleempiricallyanalyzedthepopulationandeconomicCCRRinHubeiProvincefrom1978to2006.TheresultindicatesthatthepopulationinHubeiProvinceisoverloadingwhiletheeconomiccarryingcapacityisabundantcomparedtothewholecountry,andtheeconomicinsufficiencyrestrictsthepopulationcarryingcapacity.Inthefuture,HubeiProvincewillbecomeoneofthecoredevelopingzoneswhicharecharacterizedbyeconomicconglomeration.

简介：Thepopulationcarryingcapacityofrestricteddistrict,keydevelopmentdistrict,optimizeddistrictappeargradientdecrease.Whiledifferentiationofsatisfactionregardingpopulationcapacityappearsinoptimizingdistrict,keydevelopmentdistrictsorrestricteddistricts,theunbalanceddistributionofpopulationbetweendistrictsorwithindistrictsemerges.Usingmulti-prongedmeasurestoreasonablycontrolpopulationsizeandguidethemovementofpopulationtothesuburbs,thisisarealisticpolicydirectionforBeijing,ShanghaiGuangzhouandShenzhenFirst-tiercities.Otheroptimizingdistrictsandkeydevelopmentdistrictsshouldraisetheirpopulationcarryingcapacity'sshortboard.RestricteddistrictshouldincreasetheirfinancialinputandimprovetheirImprovetheirlevelofpublicservice.

简介：Thispaperproposesthatitisnecessarytoimplementtheconceptoftouristcarryingcapacitytofacilitatethetourismplanning,andpresentsamethodtoevaluatethecarryingcapacity.Themethodcalledmatterelementanalysiscansolvetheuncertainandincompatibleproblemoftheevaluatedfactorsinassessingcarryingcapacity.Thecurrentstateofadestination'scarryingcapacitycanbedeterminedbyestablishingthestandardindexesandthematterelementmodel.ThroughtheevaluatingofthetravelindustryzonesoftheAutonomousPrefectureofWesternHunan,themethodisprovedtobesimpleandfeasible,anditisimprovedtobesignificantforthetourismplanninganddeterminationaswellasthesustainabledevelopmentoftheregionaltourism.

简介：Asaresultsofmagnetoelasticinteraction,themechanicalbehaviorofcurrent-carryingcoilstructures,suchasdeformationandinstability,isakeyprobleminthedesignofstrongfieldmagnets.Inthispaper,anonlinearmathematicalmodelispresentedtodescribethedeformationandbucklingofD-typecurrent-carryingcoils,basedontheBiot-Savartlawandthebendingtheoryofcurvedbeams.Thebendingdeformation,thecriticalvalueofcurrentforthemagnetoelasticbucklingofthecurrent-carryingcoil,andtheeffectsofthetypeandnumberofsupportsatmiddlepartofthebendingcoilonthecriticalvaluearequantitativelyinvestigatedbyasemi-analyticalandsemi-numericalmethod.Thenumericalresultsareshowntobeingoodagreementwiththeexperimentaldata.

简介：包含脲组的新奇phenylacetylene衍生物被综合并且有Rh催化剂到的polymerized给相应聚合物，poly(1)与中等数字一般水准分子的重量。(1)poly在甲苯是可溶的，CHCl3,CH2Cl2,THF，DMF，和DMSO，但是在己不可溶解，diethyl醚和MeOH。特定的旋转和圆形的二色性(CD)分光镜的研究表明(1)那poly拿了主要传递一个的螺旋状的结构。intramolecular氢结合的存在被液体状态红外光谱学证实。helicity(1)能被温度和阴离子poly调节。聚合物的螺旋状的符合构造对Br-是稳定的但是产生F<啜class=“a-plus-plus”>。

简介：Basedontheconceptofecosystemcarryingcapacity,theindicatorsystemofquantitativeassessmentwassetup,whichconsistedofsupportindicatorsystemandpressureindicatorsystem.Andthefactoranalysismethodwasusedtoscreentheindicatorsystem.Differentfromthetraditionalindicatorweightdeterminationbasedontheabsolutevaluesofthecoefficientsofregressionequation,thesquaresoffactorloadingsintherotatedcomponentmatrixwereattemptedtodeterminetheweightsof40assessmentindicators.TheresultshowsthatecologicalsupportsystemandpressuresysteminBinhaiNewAreaarerelativelybalancedamongsixyears,andthedevelopinglevelofurbanecosystemisbasicallyhealthyonthewhole.However,duetocontinuouslyincreasingpressureoftheresourcesconsumptioncausedbytherapidgrowthofthesecondindustry,whichistheLeadingIndustryofBinhaiNewArea,theecosystemcarryingcapacityreachedtheminimumin2005.

简介：Inthispaper,wedemonstrateaschemeforcompensatingdistortedopticalvortexbeamscarryingorbitalangularmomentum.ByinputtingtheintensityprofileintotheGerchberg–Saxtonalgorithm[Optik35,237(1972)],thepre-compensationphasemaskcanbeacquired.Noadditionalprobebeamsareintroduced,andallthecomputingisaimingatthetransmittedvortexbeams.Thedistortedvortexbeamsareinvestigatedexperimentallybeforeandafterpre-compensation,showingfavorablecompensationperformance.Thisschemewillfindapplicationsintheareasofrotationdetection,opticalcommunications,andsoon.

简介：Toimplement'SomeOpinionsoftheStateCouncilofP.R.C.onPromotingtheSustainableandHealthyDevelopmentofRareEarthIndustry',regulateandstandardizerareearthproductionorderandacceleratethetransformationofrareearthindustrydevelopmentpattern,theMinistryofIndustryand

简介：Withpopulationgrowthandincreasingpressureonlandresources,landcarryingcapacity(LCC)andfoodsafetyhavebeenattractinggreatattentionworldwide.Fromthepointofman-grainrelationshipandbyestablishingLCCandlandcarryingcapacityindex(LCCI)models,thisarticlefirstlyanalyzesthespatial-temporaldynamicsofLCCofChinafrom1949to2005atcounty,provincialandnationallevels.Choosing2005asarepresentativeyear,thisarticlethenevaluatestheLCCof264pastoralregions(semipastoralregions),663urbanregionsand592povertystrickenregionsofthecountry.Theresultsshowthat:(1)from1949to2005,withtheincreaseofgrainproduction,theLCCofChinahasbeenimprovedconspicuously,butduetotherapidpopulationgrowth,theproductioncanonlymaintainalowlevelgrainconsumption;(2)overthepast25years(1980-2005),thenumberofpopulationoverloadingprovincesdecreasedfrom23to15andthemangrainrelationshiphasbeenimprovedgradually,butthereweremoreoverloadingprovincesthansurplusprovincesinChina;(3)atcountylevel,therewere1572overloadingcountiesin1980accountingfor68.26%ofthetotalcountiesofthecountryandwherewere649millionpeoplelived,whilein1990,2000and2005,thenumberofoverloadingcountieswere1066,1133and1087respectively,whichshowsthattheman-grainrelationshiphasbeenimprovedobviouslyduringthepast25years;asforspatialdistribution,thesurpluscountiesweremainlyconcentratedinagriculturedevelopedregions,suchasNortheastPlain,NorthChinaPlain,middleandlowerReachesoftheYangtzeRiverPlain,andoverloadingcountiesweremainlylocatedinregionswithpoornaturalenvironmentandlowgrainproductioncapacity,suchasNorthwestChina,TibetanPlateauandLoessPlateauandeconomicallydevelopedurbanregions,suchasBeijing,TianjinandShanghai;(4)animalhusbandryimprovedgreatlytheLCCofpastoralandsemi-pastoralregions,whileurbanregionswereoverloadingforincreasingpopulationpressureandmoreth

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简介：Evaluationsofresourcesandenvironmentalcarryingcapacities(GRECC)arethepremiseoflandspaceplanningandusecontrol.Resourceallocationsandenvironmentalcapacityarethebasicconditionsthatrestrictdevelopmentinaregion.Inthispaper,basedonasystematicreviewofChina'sgeologicalenvironment,groundwaterresources,mineralresources,othergeologicalresourcesandtheenvironmentalcarryingcapacityresearchstatus,therelationshipbetweenthenaturalresourceenvironmentalsystemandthesocio-economicsystemisstudied.Thena"coordinationtheoryofresourcesandenvironmentalcarrying"isproposed.Next,onthebasisofanevaluationexperimentperformedatdifferentscalesandfordifferenttypesofregions,thetechnicalmethodsforanevaluationofthegeologicalresourcesandenvironmentalcarryingcapacityattheregional(inter-provincial)andprovincialscalesinChinaareestablishedforthefirsttime.Thispaperpresentsastandardizedmethodbasedontechnicalideas,evaluationmethods,andindexsystemsforgeologicalresourceandenvironmentalcarryingcapacityevaluation.Finally,anevaluationofthegroundwaterresourcecarryingcapacityinChinaisusedasanexampleforthedemonstrationofthegroundwaterresourcebackgroundanduseofstateevaluationmethods.

简介：Thestructuresinengineeringcanbesimplifiedintoelasticbeamswithconcentratedmassesandelasticspringsupports.Studyingthelawofvibrationofthebeamscanbeahelpinguidingitsdesignandavoidingresonance.BasedontheLaplacetransformmethod,themodeshapefunctionsandthefrequencyequationsofthebeamsinthetypicalboundaryconditionsarederived.Acantileverbeamwithalumpedmassandaspringisselectedtoobtainitsnaturalfrequenciesandmodeshapefunctions.AnexperimentwasconductedinordertogetthemodalparametersofthebeambasedontheNExT-ERAmethod.Bycomparingtheanalyticalandexperimentalresults,theeffectsofthelocationsofthemassandspringonthemodalparameterarediscussed.Thevariationofthenaturalfrequencieswasobtainedwiththechangingstiffnesscoefficientandmasscoefficient,respectively.Thefindingsprovideareferenceforthevibrationanalysismethodsandthelumpedparameterslayoutdesignofelasticbeamsusedinengineering.

简介：Theresonancefrequenciesandstabilityofananobeaminalongitudinalmagneticfieldareinvestigated.Tothisaim,athreedimensionalbeammodelisusedinwhichthesmall-scaleeffectistakenintoaccountbasedonthenonlocalelasticitytheory.TheLorentzforcesareobtainedintermsofthelocalelasticrotationsofthebeamandthethermalstressduetocurrentismodeledasanaxialcompressiveforce.UsingtheGalerkinmethod,thegoverningequationsofmotionaresolvedandthestabilityboundaryofthenanobeamisdetermined.

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简介：Theecologicalcarryingcapacity,animportantindica-tortoevaluatethesustainabledevelopmentoftheecosystem,meansthepotentialabilityofthenaturalecosystemtocarryso-cioeconomicdevelopmentwhiletheecosystemishealthy.Itislimitedbythecarryingcapacityofnaturalresourcesandenviron-mentandtheelasticityoftheecosystem.Itwillbegreatlysignifi-canttostudytheecologicalcarryingcapacityofHainanProvince,thefirstecologicalprovinceadmittedbytheStateEnvironmentalProtectionAdministrationinChina.Notonlyisthenaturaleco-systemreflected,butalsotheeffectsofhumanactivitiesareem-phasizedbyintegratingtheecosystemhealthanalysisintotheecologicalcarryingcapacityresearch.Theresearchresults,usingtheFactorAnalysistoolsofsoftwareSPSS,indicatethattheeco-logicalcarryingcapacityofHainanProvincefluctuatedobviouslyfrom1996to2005.TheleveloftheecologicalcarryingcapacityofHainanProvincewasrelativelyhighin1996,andreachedintotroughfrom1997to1999.Ithassteadilyascendedtobeabovethemiddlelevelsincethe21stcentury.Theresultsalsoshowthatpolicyfactors,especiallytheimplementationofthe'EcologicalProvince'strategy,wereimportantdrivingforcestoinfluencetheecologicalcarryingcapacity.Withthepopulationrapidlyincreas-ing,thelandandwaterresourcespercapitahavedecreasedquickly.Theamountoftheecologicalcarryingcapacitywaspro-motedremarkablybysocioeconomicdevelopmentespeciallyeconomicgrowthandtechnologyapplications.Allofthesewillprovideusefulsuggestionstoestablishandenactregionaldevel-opmentpolicies,especiallyforprotectingandreconstructingtheecologyandenvironmentofHainanProvince.

简介：Theconflictbetweencitydevelopmentandurbancarryingcapacityisgettingeverprominent.InordertostudyandpredicttherestrictionfactorsandprominentproblemsinthedevelopmentoftheShandongPeninsulaBlueEconomicZoneaswellaspromotethetransferofeconomicdevelopmentpatterninthisregion,thisstudystartsfromfoursinglefactorcarryingcapacityindicatorsofwater,earth,transportationandenvironmentinthecityanditscomprehensivecarryingcapacityindicator,evaluatesandanalyzesitscarryingcapacityandthenpapoosespolicysuggestionsforimprovingitscarryingcapacity.