简介:摘要院云南各族经过长期的迁徙后,形成了交错杂居的分布格局,民族民居在“地区性”与“民族性”共同作用下,呈现出同地域不同民族间的民居的相似与差异。以佤族干栏民居与傣族民居的对比研究为例,总结研究两个民族民居之间的异同,从而分析同地域不同民族民居的文化交融,归纳出影响住屋形式的因素。
简介:Inordertoovercomethepoorlocalsearchabilityofgeneticalgorithm,resultinginthebasicgeneticalgorithmistime-consuming,andlowsearchabilityinthelateevolutionary,weusethegraycodinginsteadofbinarycodingatthebeginningofthecoding;weusemulti-pointcrossovertoreplacetheoriginalsingle-pointcrossoveroperation.Finally,theexperimentshowsthattheimprovedgeneticalgorithmnotonlyhasastrongsearchcapability,butalsothestabilityhasbeeneffectivelyimproved.
简介:<正>Withitsrise,Chinaattractedmoreandmoreattentionfromallovertheworld.PeoplearewillingtoknowhowChinaachievedsuchgreatdevelopmentunprecedentedinthehistoryofhumanbeingssincethereformandopeningupsome30yearsagoandwhattheriseofChinameanstotherestoftheworld.
简介:Histogramofcollineargradient-enhancedcoding(HCGEC),arobustkeypointdescriptorformulti-spectralimagematching,isproposed.TheHCGECmainlyencodesroughstructureswithinanimageandsuppressesdetailedtexturalinformation,whichisdesirableinmulti-spectralimagematching.Experimentsontwomulti-spectraldatasetsdemonstratethattheproposeddescriptorcanyieldsignificantlybetterresultsthansomestate-ofthe-artdescriptors.
简介:摘要院近些年来,很多少数民族新民居的建设导致村寨的传统风貌遭受了前所未有的破坏,从而引发对傣族传统民居可持续发展的重新思考。本文回顾了西双版纳傣族民居的发展变迁,并基于西双版纳地区特有的木塑复合材料,提出了一种新型钢-木塑结构的傣族民居形式。
简介:Aimingattheproblemssuchasmorerepeatedlydesignandlongerdesigncycle,inthispaper,thesimilaritytheorywasintroducedtothedesignprocessofthekeystructuresofflotationmachine.TheimpellerandU-shapedtankofflotationmachinesystemwereanalyzedassimilarityunit.Meanwhile,thelevelofsimilarityoftheunitsandthesimilarityofthesystemwerecalculated.BasedontheanalysisoftheimpellerandthesizeofU-shapedtank,thesimilaritycriteriawerederived.Thederivedconclusionsare:(1)Therelationshipbetweenthediameteroftheimpellerandthevolumeofthetankwaspowerfunctionandcalculatedasthesimilaritycriteriaoftheimpeller;(2)TherelationshipbetweentheratiobetweentheU-shapedtank’scross-sectionalareaandimpeller’sdiameterandthevolumeofthetankwaspowerfunctionandcalculatedasthesimilaritycriterionsoftheU-shapedtank.Usingthesimilaritycriterioncombinedwithcomputertechnologyanddatabasetechnologytorealizepartandsystemserializationdesign.Theresultsshowthattheresearchcanavoidrepeatedlydesign,shortendesigncycle,andraisethedesignefficiency.