简介:Thispaperinvestigatesthemathematicfeaturesofnon-linearmodelsanddiscussestheprocessingwayofnon-linearfactorswhichcontributestothenon-linearityofanonlinearmodel.Onthebasisoftheerrordefinition,thispaperputsforwardanewadjustmentcriterion,SGPE.Last,thispaperinvestigatesthesolutionofanon-linearregressionmodelinthenon-linearmodelspaceandmakesthecomparisonbetweentheestimatedvaluesinnon-linearmodelspaceandthoseinlinearmodelspace.
简介:目前,闪电是10自然灾难之一,并且它也是力量打断的最高的环境因素。它经常引起巨大的损失到电的系统。自从1980年代末,中国和科技的Huazhong大学的州的格子公司的武汉高电压研究所一直在研究并且发展中闪电地点系统(LLS)。在mid-1990s,一个闪电察觉网络在中国在29个省和城市被创造。很快发现闪电事故首先被使用,还原剂它极大地驱动打断。另外,它保证高效率和电系统的安全操作。显著利益被完成。中国的LLS通过了一“放的取向-放的时差-综合的放”开发过程。放的精确,察觉效率,自动化的学位,有实行可能和应用范围被改进。另外,国家网络的一个闪电信息系统计划被实现了,它满足整个协会。
简介:Thedeep-seafloorimagesareacquiredundernon-uniformillumination,theeffectsofwhichbringupmanydifficultiesforimagesegmentation.Thepapercomparesthreemethodsofremovingnon-uniformilluminationeffects.Theeffectivenessandrobustnessareevaluatedonthreetestimageswithhigh-,moderate-andlow-densitygrains,respectively.Theresultsshowthatlocalfilteringalgorithmdoesnotremovethenon-uniformilluminationeffectscompletely.Theimagesubtractingalgorithmwilllosesomeofthedynamicrangeoftheoriginaldata.Theenhancedimagestretchingalgorithmisthemosteffectiveone.