简介：复杂地球物理的数据的倒置总是解决多参数，非线性、多模式的优化问题。寻找最佳的倒置答案类似于当寻找食物时，在象鸟和蚂蚁那样的群观察的社会行为。在这篇文章，首先，粒子群优化算法详细被描述，并且蚂蚁殖民地算法改善了。然后，方法被用于地球物理的倒置问题的三种不同类型：(1)对噪音敏感的一个线性问题，(2)线性、非线性的问题的同步倒置，并且(3)一个非线性的问题。结果验证他们的可行性和效率。与常规基因算法相比并且退火模仿，他们有更高的集中速度和精确性的优点。与伪相比--牛顿方法和Levenberg-Marquardt方法，他们与克服局部地最佳的答案的能力更好工作。

简介：Tousereasoningknowledgeaccuratelyandefficiently,manyreasoningmethodshavebeenproposed.However,thedifferencesinformamongthemethodsmayobstructthesystematicalanalysisandharmoniousintegrationofthem.Inthispaper,acommonreasoningmodelJUM(JudgementModel)isintroduced.AccordingtoJUM,acommonknowledgerepresentationformisabstractedfromdifferentreasoningmethodsanditslimitationisreduced.WealsoproposeanalgorithmfortransformingonetypeofJUMsintoanother.Insomecases,thealgorithmcanbeusedtoresolvethekeyproblemofintegratingdifferenttypesofJUMinonesystem.Itispossiblethatanewarchitectureofknowledge-basedsystemcanberealizedunderJUM.

简介：Thetransportationindustryisanessentialsectorforcarbonemissionsmitigation.ThispaperfirstlyusedtheLMDI(LogarithmicMeanDivisiaIndex)decompositionmethodtoestablishfactorsdecompositionmodelonChina’stransportationcarbonemission.Then,aquantitativeanalysiswasperformedtostudythefactorsinfluencingChina’stransportationcarbonemissionsfrom1991to2008,whichareidentifiedastransportationenergyefficiency,transportationstructureandtransportationdevelopment.Theresultsshowedthat:(1)Theimpactoftransportationdevelopmentontransportationcarbonemissionsshowedpullingfunction.Itscontributionvaluetocarbonemissionsremainedathighgrowthsince1991andshowedanexponentialgrowthtrend.(2)Theimpactoftransportationstructureontransportationcarbonemissionsshowedpromotingfunctioningeneral,butitsroleinpromotingcarbonemissionsdecreasedyearbyyear.Andwiththecontinuousoptimizationoftransportationstructure,thepromotingeffectdecreasedgraduallyandshowedtheinversed"U"trend.(3)Theimpactoftransportationenergyefficiencyontransportationcarbonemissionsshowedafunctionofinhibitionbeforepulling.Inordertopredictthepotentialofcarbonemissionreduction,threescenarioswereset.Analysisofthescenariosshowedthatifgreaterintensityemissionreductionmeasuresaretaken,thecarbonemissionswillreduceby31.01milliontonsby2015andby48.81milliontonsby2020.

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简介：AnewmethodforrecognizingChinesecharactersisproposed.Itisbasedontheso-calledfeaturepointsofChinesecharacters.Thefeaturepointsweuseincludethoseonthestrokeofacharacter.i.e.,endpoints.turningpoints,forkpointsandcrosspoints.andthekeypointsonthebackgroundofcharacter.ThismethoddiffersfromthepreviousonesforitcombinesthefeaturepointsonstrokewiththoseonbackgroundanditusesfeaturepointstorecognizeChinesecharactersdirectly.AChinesecharacterrecognitionsystembasedtotop-downdynamicalmatchingoffeaturepointisdeveloped.Thesystemcanrecognizenotonly6763printedsampleSongfontChinesecharactersofsize5.6×5.6mm^2withhighrecognitionrate,butalsothegeneralprintedbooks,magazinesanddocumentswithasatisfactoryrecognitionrateandspeed.

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简介：为阐明β榄香烯的抗血小板作用，本文分别采用比浊法和放免法测定大鼠连续ｉｐ７ｄβ榄香烯乳６．２５～１２．５ｍｇ·ｋｇ－１·ｄ－１后对血小板聚集、血浆ｋｅｔｏＰＧＦ１α和ＴＸＢ２水平的影响。结果表明，本品分别使凝血酶、花生四烯酸和ＡＤＰ诱导血小板最大聚集率下降３８．３％～４２．６％，１４．７％～１９．１％和７．２％～１０．８％，血浆ＴＸＢ２从８８ｎｇ·Ｌ－１下降至７２ｎｇ·Ｌ－１，ｋｅｔｏＰＧＦ１α从１７．５ｎｇ·Ｌ－１增加至２０．９ｎｇ·Ｌ－１。提示ＴＸＢ２降低和ｋｅｔｏＰＧＦ１α值增加是其抑制血小板聚集的作用机制之一。

简介：Inthispaper,thephenomenononcollapsibletubedisplacementoscillation,anewbehaviorofthecollapsibletubepuisatileflowhasbeenstudied.Theexperimentsshowthatthecollapsibletube,inwhichtheflowisperiodicpuisatileintheupstream,willoscillateasasimplesupportedbeamwhenitiscollapsedtocertainextent,andthatifthetubeiscollapsedcontinue,thisoscillationwilltendtoweakandcompletelydisappearlastly.Ananalyticalmodelcorrespondingtothecollapsibletubedisplacementoscillationanditsgovernedequationsaresetupfromtheexperimentbackground.Byanalysingthemodelandsolvingtheequations,thecollapsibletubedisplacementoscillationpatternandtheoscillationoccurringordisappearingcriterionareobtained.Theresultspredictedbythisstudyareinagreementwiththoseobservedfromexperimentphenomena.

简介：Thispaperselectstherecordsof7,412earthquakes,eachrecordedbymorethan10stationsinYunnanbetween2009and2014toacquirethetraveltimecurves.Meanwhile,forimprovingprecision,linearanalysis,reducedtraveltimecurveandintervalstabilityanalysisareconductedfocusingontherecordsof83earthquakeswithML≥3.0recordedeachby≥80%ofthestations,andbycombiningpredecessors??researchresults,theinitialcrustalvelocitymodelofthestudyareaisobtained.Byselecting200earthquakeswithM≥3.0occurringinYunnanbetween2010and2014,usingtheHyposatbatchlocationprocessingmethodtoiteratetheinitialvelocitymodel,andperformingfittingtoSwaveslayeredvelocitystructure,weobtainthecrustalvelocitymodelfortheYunnanregion,namely,the2015Yunnanmodel,with:vP1=6.01km/s,vP2=6.60km/s,vPn=7.89km/s,H1=20km,H2=21km,vS1=3.52km/s,vS2=3.86km/s,vSn=4.43km/s.AnalysisonearthquakerelocationsbasedonthenewmodelshowsthatmostearthquakesoccurringinYunnanareatadepthof10km-20kmoftheuppercrust.TheMarch10,2011MS5.8YingjiangandAugust3,2014MS6.5Ludianearthquakesarerelocated,andthefocaldepthsdeterminedwiththenewmodelarerespectivelyclosetotheprecisepositioningresultandhypocentraldistancetothestrongmotionstationsattheepicenters,indicatingthatthenewone-dimensionalvelocitymodelcanbetterreflecttheaveragevelocitystructureofthestudyarea.

简介：Reviewsonthecunentstudiesontheseatoairfluxofdimethylsulfide(DMS)havebeenmadeathomeandabroad,pointingoutthatthefluxofDMSisinfluencedbymanyfactors.Thereisgreatdifferencebetweentheresultscomingfiomdifferentmodels.Besides,thispaperfocusesontheoxidationmechanismsofDMSbyOHandNO3radicalsafteritenterstheatmosphere,theoxidationproducts'contributiontoacidrainandfogandtherelationshipsamongtheDMS,CCNandclimatesystem.

简介：OnthebasisofanalyzingtheshortageofscalemeasureofthecurrentAHP,andfollowingbaseprincipleoftwocomparison:principleofreward-punishmentandprincipleofconversion,translationfunctionandconciliationcoefficienthavebeenstructured.Thisarticleadvancesanewmeasurewhichstructuringtranslationfunctionandconciliationcoefficient.TheresultofapplicationofimprovedAHPonthesynthesisevaluationofagriculturalmechanizationissatisfactory.

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简介：为解决水入口问题，一个数字方法被介绍，它基于捕获方法和笛卡儿的切割房间网孔的免费表面是一个CFD方法。在这条途径，为可变密度液体的不可压缩的Euler方程被有限的卷方法数字地计算。然后人工的压缩的可能性方法，双走时间的技术和牝鹿接近Riemann解答者在数字计划被采用。最后，一些申请盒子被设计显示当前的方法的能力在海洋工程应付水入口问题。

简介：Imagesensorhasbeenoneofthekeytechnologiesinintellectualizedroboticswelding.Edgedetectionplaysanimportantrolewhenthevisiontechnologyisappliedinintellectualizedweldingroboticstechnologies.Thereareallkindsofnoisesinweldingenvironment.Thealgorithmsincommonusecannotbeappliedtotherecognitionofweldingenvironmentdirectly.Theedgeofimagescanbefellintofourtypes.Theweldimagesareclassifiedbythecharacteristicofweldingenvironmentinthispaper.Thispaperanalyzessomealgorithmsofedgedetectionaccordingtothecharacterofweldingimage,somerelativeadvantagesanddisadvantagesarepointedoutwhenthesealgorithmsareusedinthisfield,andsomesuggestionsaregiven.Thefeatureextractionofweldseamandweldpoolaretwotypicalproblemsintherealizationofintellectualizedwelding.Theiredgefeaturesareextractedandtheresultsshowtheapplicabilityofdifferentedgedetectors.Thetradeoffbetweenprecisionandcalculatedtimeisalsoconsideredfordifferentapplication.

简介：Inthispaper,afastalgorithmforthediscretesinetransform(DST)ofaToeplitzmatrixoforderNisderived.OnlyO(NlogN)+O(M)timeisneededforthecomputationofMelements.TheauxiliarystoragerequirementisO(N).Anapplicationofthenewfastalgorithmisalsodiscussed.

简介：一、政企合作共赢PPP（PublicPrivatePartnership）模式财务可持续、民企效率和服务、接受新技术的弹性，加强基础设施的运营，创造多赢模式。二、电子付费和电子票务系统在台湾的发展

简介：Mileage-basedpricinginsurance,suchasPAYD,isknownasthe'greeninsurance'becauseitislow-carbonandenvironmentallyeffective,whichisthebiggestinnovationintheglobalautoinsuranceindustryseeninthepastdecade.Startingfromtheperspectiveofeconomicexternalities,vehiclenegativeexternalitiesinChinaaredescribed.Inordertointroducemileage-basedpricinginsurancetotheChineseinsuranceindustry,thispaperreviewsthecurrentpracticeofPAYDinsuranceanditsimpactsontransportexternalities,includingairpollution,climatechange,energydependency,congestion,accidents,andothers.Finally,enlightenmentandpolicysuggestionsareproposed,inthehopeofbetterpromotingthelow-carboneconomydevelopmentoverthewholeofChina.

简介：在这研究，Jenkinson和Collison(1977)基于兰姆(1950)的一个打字计划开发的分类计划被使用在一个每月的基础上从吝啬的海平面的压力获得发行量类型。从1951～2002的每月吝啬的海平面的压力数据被用来导出六个发行量索引并且向一个发行量目录提供27种发行量类型。最经常发生了的五种主要类型(N，NW，C，CSW，和SW)被分析在各种各样的时间规模上与哈尔滨的温度揭示他们的关系。逐步的多重回归被用来重建温度异例。发生的所有类型和三个学生的合成地图的每月吝啬的降雨打字(C，CSW，和SW)与哈尔滨的降水相关被学习。结果证明在冬季的主导的类型是类型N和NW。类型C，CSW，和SW在夏天经常发生。类型N和NW赞成一个否定温度异例并且当类型C，CSW，和SW经常导致一个积极温度异例并且对应于更多的降雨时，对应于更少的降雨。而且，一个成功的统计模型能被建立与仅仅，六之一索引并且大规模吝啬的温度。用模型，在在1951和2002之间的温度异例的77.3%全部的变化能被重建。类型C与全部的降雨有一种靠近的关系，类型C降水在在最近的年里决定哈尔滨的全部的降雨起一个主要作用。这个分类计划是有温度的一个统计downscaling模型和它的关系，降水能被用来预报地区性的气候。[出版摘要]

简介：X-raydiffraction(XRD)peaksinalow-anglediffractionsectionofclayminerals,especiallythoseofauthigenicorigin,havebroadeningandtailingfeaturesinshape.Usingthefivebasicparameters,peakposition,peakheight,width,shapecoefficientandasymmetry,todescribeanXRDpeakismoreaccurate,comprehensiveandintegratedthanusingonly3ofthem,position,heightandwidth.FollowingtheconceptofthefivebasicparametersofanXRDpeak,theprogramDecoformproposedinthisstudyprovidesmoreinformationinmineralogicalanalysesbyfittingactualXRDprofiles.IncombinationwiththeHW-IRplot,Decoformcanbesystematicallyandaccuratelyusedinthecomprehensiveanalysesofcrystallinity,domainsize,latticestrainandquantitativephase.Itisalsoofvalueforthegeologicalinvestigationsofdiagenesis,metamorphism,basinmaturity,structuralstressfieldandsoon.