简介:■Theworld’smostprestigiousartshowsteamedupinEuropethisspringtocreateaEuropeanarttourthatofferedanunparalleledopportunitytoexaminecontemporaryartfromaroundtheworld.Itwasanendlessexperienceofgala
简介:WhileattendanceatpreviousIGC'swasremarkable,themorethan7,000earthscientists,exhibitorsandguestswhometinFlorenceforthe32^ndInternationalGeologicalCongresssetanall-timerecordasthehighestnumberofparticipants.Theycamefrom120countriesand75%werenotItalian.Thisproportionofforeignattendeeswasthelargestever;inlinewithatrendofincreasingnonlocalparticipation,ittestifiestothevitalityandinternationalcharacteroftheIGCs.
简介:FromMarch8thto14th,2007,USPresidentGeorgeW.BushpaidanvisittofiveLatinAmericanstatesofBrazil,Uruguay,Colombia,GuatemalaandMexico.Thisvisit,withthelargestnumberofLatinAmericanstatesvisitedandthelongestdurationsinceBushcametooffice,wasanimportantdiplomaticmovethatdemonstratestheUS'sdeterminationtoregainits'backyard'aswellasmajorpolicyadjustmentsoftheUStowardsLatinAmerica.
简介:Althoughthestructuredlightsystemthatusesdigitalfringeprojectionhasbeenwidelyimplementedinthree-dimensionalsurfaceprofilemeasurement,themeasurementsystemissusceptibletonon-linearerror.Inthiswork,weproposeaconvenientlook-up-table-based(LUT-based)methodtocompensateforthenon-linearerrorincapturedfringepatterns.Withoutextracalibration,thisLUT-basedmethodcompletelyutilizesthecapturedfringepatternbyrecordingthefull-fielddifferences.Then,aphasecompensationmapisestablishedtorevisethemeasuredphase.Experimentalresultsdemonstratethatthismethodworkseffectively.
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简介:Globallook-uptablestrategyproposedrecentlyhasbeenproventobeanefficientmethodtoacceleratetheinterpolation,whichisthemosttime-consumingpartintheiterativesub-pixeldigitalimagecorrelation(DIC)algorithms.Inthispaper,agloballook-uptablestrategywithcubicB-splineinterpolationisdevelopedfortheDICmethodbasedontheinversecompositionalGauss–Newton(IC-GN)algorithm.Theperformanceofthisstrategy,includingaccuracy,precision,andcomputationefficiency,isevaluatedthroughatheoreticalandexperimentalstudy,usingtheonewithwidelyemployedbicubicinterpolationasabenchmark.Thegloballook-uptablestrategywithcubicB-splineinterpolationimprovessignificantlytheaccuracyoftheIC-GNalgorithm-basedDICmethodcomparedwiththeoneusingthebicubicinterpolation,atatrivialpriceofcomputationefficiency.
简介:Radiationexposureisahazardforpatientsandphysiciansduringfluoroscopically-guidedprocedures.Invasivecardiologistsareexposedtohighlevelsofscatterradiationandbothincreasingproceduralcomplexityandhigheroperatorvolumescontributetoexposureaboverecommendedthresholds.Standardshieldingdoesnotoffersufficientprotectiontotheheadandneckregionandthepotentialfornegativebiological,subclinical,andclinicaleffectsexists.Largepopulationstudiessuggestthatcranialexposuretolowdoseradiationincreasestherisksoftumordevelopment.Inaddition,modestdosesoftherapeuticcranialradiationhavebeenlinkedwiththedevelopmentofbraincancer.Althoughacausalassociationbetweenscatterradiationinthecathlabandbraincancerdoesnotcurrentlyexist,giventheknowndetrimentaleffectsofradiationexposuretotheheadandneckregionsupportafocusonpotentialmethodsofprotectionforboththepatientandtheoperator.
简介:摘要:在当下,城市中的土地资源越来越稀缺,越来越多优质的地块被用于利润更高的房地产项目,而类如学校这种公益类项目通常被置于限制条件较多的地块之中。较多的限制条件往往带来更难的设计难度,使得设计方案收到诸多限制。本文探讨现代学校建筑设计的基本因素及如何融入生态绿色、学习与交流、序列的设计理念。本文采用了分析整理的方法,总结了学校设计中常考虑的基本因素,并提出了三个设计理念。设计师需要充分考虑教学建筑和学生活动区域的分隔、安全性、环保等因素,同时创造舒适、多元、有序的校园环境。这些创新理念将提升学校建筑的功能和美学价值,促进学生全面发展。