简介:Intheestimationofseismictendency,usingGutenberg-Richter¢sb-valueandusingHurstexponentaretwocom-monlyusedmethods.Basedonthefractalgeometryofearthquaketimeseries,wepointoutthatthesetwomethodscorrelatetoeachother.IntheperspectiveoffractionalBrownianmotion(FBM),anearthquakesequencewithb>3/4andthatwithb<3/4havedifferentdynamicproperties.
简介:AmodelofseismicitywithfractalstructuresandapreliminarydiscussionontherelatiobetweenDandbvalueHat-KunJIANG(蒋海昆)andShou-ZhongDI...
简介:CumulativefrequencybvaluewithoutupperboundmagnitudeanditsregressiondeterminationJian-WenSHEN(沈建文)(SeismologicalBureauofAnhuiP...
简介:ThepaperprovidesanapproachofvaluinganP&Dinvestmentopportunity.Theresultshowsthatwhentheinvestmentopportunityvalueisdependentsonthevalueofaproject,wecanuseNPVoftheprojectcompletedtovaluetheoptionofinvestmentotherthantousingofpartialdifferentialequation.Meanwhilethepaperoffersanalternativewaytofindtheoptimalinvestmentrule.
简介:HAKKA“FENGSHUIFORESTS”:THEIRPRESERVATIONANDVALUE¥ByNiGenjinTheHakkapeopleformanimportantanddistinctivecomponentoftheHannation...
简介:Asanimportambio-resource,insectresourceshavenotbeenputintofullplayashealthyfood.Basedonstudyandanalysis,thenutritivevalueofedibleinsectswasreviewed.Theresultsshowedthatinsectshaverichprotein(20%-70%),aminoacid(30%-60%),fat(10%-50%),fattyacid,carbonhydrate(2%-10%),mineralelements,vitaminsandotheractivatedelementswhicharegoodforhuman'shealth.Asproteinresources,thenutritivevalueofedibleinsectsisasgoodasanimalandplantresources.Insec...
简介:IntroductionDuringthelasttwodecadestherehavebeenremarkabledevelopmentsinEnglishlanguageteachinginChina.Withanever-increasingemphasisbeingputonthecommunicativecompetenceofthelearners,variousmethodsandtechniqueshavebeentriedtoimprovethestudents’abilitytocommunicateinEnglish.ThisarticlelooksatthevalueofusingWesternfeaturefilmstohelpstudentsdevelopthiscommunicativecompetence.
简介:1IntroductionandPreliminariesItiswellknownthatthesmallestsingularvalueofamatrixisimportantinmatrixthoeryandapplications.VarahandQi,Johnsongavesomeresultsonlowerboundofthesmallestsingularvalue[1—4].Here,weusetheblockpartitionedformofamatrixtoob-taingeneralizedlowerboundsforσn(A).Furthermore,byscalingwithamatrixDweob-tainanewlowerboundforσAofmatriceswhicharenotpositivedefinitematrices.