简介：Thispaperproposesanautomaticmethodofporecombinationrecognition,whichisanimportantfeaturetohardwoodrecognition.Afterextractingedgefromwoodmicroscopiccross-section,basedonareahistogramofthesimilarcircleregions,themethodclassifiesallregionsintotwoclasseswithmaximumbetween-classvariance,soastodistinguishtheporefromothertextures,whicharesimilarinshapesbutdifferentinsizes.Meanwhile,secondobjectivefunctionaboutaverageareaofclosedregionsisusedtoimprovetheporesegmentationperformance.Atlast,themethodusesadjacencydegreeofporesettojudgeporecombination.Theexperimentsdemonstratethatthetaskofporesegmentationcanbecompletedsuccessfullyforallkindsofporedistributionandcombination,andalsothecorrectcombinationsofporesaregiven.

简介：木材干燥能耗高的原因之一是常规蒸汽干燥的排气热损失大，能量利用率低．除湿干燥与太阳能干燥都是节能效果好的干燥方法，该文介绍了作者在这方面的研究成果，阐述了除湿机与太阳能联合干燥系统的设备组成与工作原理、技术特点与试验测试数据，最后对此类干燥技术作了一些评价和建议．

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