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简介：你能找出这两幅图片的6个不同之处吗？

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简介：Theeffectofwoodspecies(ChinesefirandPoplar),woodfibercontent(10%,25%,40%)andwoodfibersizes(16to32mesh,32-65mesh,above65mesh)onthepropertiesofthewoodfiber-Polypropylenecompositeswerestudiedinthispaper.Theresultsindicatethattheeffectofwoodfibercontentandsizeincompositeweremoreimportantthanthatofchosenwoodspecies.Comparedwithpolypropylenewithoutwoodfiber,theflexuralstrengthofthecompositesincreasedwhenaddingwoodfiberintopolypr...

简介：Themechanicalpropertiesofwoodpowder/polypropy!enecompositeswithdifferentwoodparticlesizesandwoodspecieshavebeenstudied.AllofthewoodparticiesizesincreasedtheE-modulusofthecomposites.Tensiletestsshowedthatwoodpartidesizeshadanegativeeffectontheelongationatbreakandthetensilestrengthofthecompositeshasbeenimprovedwhenwoodparticlesizeswerebe(ow150μm(below100mesh).Fortheimpacttests,thewoodpartidesizeshadanegativeeffect,buttheMDFf...

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简介：Choosingoptimumsofteningprocessandexploringthefactorsaffectingdimensionalstabilityandtheirchanginglawscanbeabletoprovidetechnologicalsupportfordevelopmentofcurvingfurniture.Thetotalrubberwoodsampleswere112[220mm(longitudinal)×17mm(radial)×8mm(tangential)],andtheyweresoftenedbyboilingwaterandbentthroughusingcurvedmoldsinthetest.TheoptimumsofteningprocesswasselectedaccordingtoMORvalueofthesamples.Someaffectingfactorswhichinfluenced...

简介：Chinesefir(Cunninghamialanceolata)andpoplar(Populusspp.)woodmealwerephenolatedinthepresenceofsulfuricacidusedasacatalyst.Theeffectsofreactiontimeandreactiontemperatureonthewoodliquefactionwereinvestigated.Theresultsshowedthatthereactiontemperaturehadthegreaterinfluenceontheresiduecontentthanreactiontime.Additionally,theliquefactioncurvefortheChinesefirandPoplarweresimilaringeneral.

简介：色母料和助剂母料供应商PlasticsColor公司（PCC）展示了一系列新型色母料．该产品是由部分废旧产品回收再用制成的。

简介：Genomicspromisestoenrichtheinvestigationsofbiologyandbiochemistry.Currentadvancementsingenomicshavemajorimplicationsforgeneticimprovementinanimals,plants,andmicroorganisms,andforourunderstandingofcellgrowth,development,differentiation,andcommunication.Significantprogresshasbeenmadeintheunderstandingofplantgenomicsinrecentyears,andtheareacontinuestoprogressrapidly.Functionalgenomicsoffersenormouspotentialtotreeimprovementandtheunderstandingofgeneexpressioninthisareaofscienceworldwide.Inthisreviewwefocusonfunctionalgenomicsofwoodqualityandpropertiesintrees,mainlybasedonprogressesmadeingenomicsstudyofPinusandPopulus.Theaimsofthisreviewaretosummarizethecurrentstatusoffunctionalgenomicsincluding:(1)Genediscovery;(2)ESTandgenomicsequencing;(3)FromESTtofunctionalgenomics;(4)Approachestofunctionalanalysis;(5)Engineeringligninbiosynthesis;(6)Modificationofcellwallbiogenesis;and(7)Molecularmodelling.Functionalgenomicshasbeengreatlyinvestedworldwideandwillbeimportantinidentifyingcandidategeneswhosefunctioniscriticaltoallaspectsofplantgrowth,development,differentiation,anddefense.Forestbiotechnologyindustrywillsignificantlybenefitfromtheadventoffunctionalgenomicsofwoodqualityandproperties.

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简介：我们在一棵锯季度的白杨上使用了声学的测试在声学的波浪上学习木头anisotropy和洞缺点的效果的木材速度和旅行路径，和我们在木头调查了声学的波浪繁殖行为。木材标本首先处于未修改的状况被测试然后在在实验室的声学的波浪的播送时间调节的改变尺寸确定的洞缺点的介绍以后测试了。标本的光线的节上的二维的声学的波浪轮廓地图然后基于试验性的数据被模仿并且分析。当波浪通过木头在各种各样的方向过去了，我们测试了在木头谷物和声学的波浪速度之间的关系。伍德anisotropy在速度和通过超过的木材传递纵的波浪的声学的波浪，和速度的旅行路径上有重要效果光线的速度。而且，洞缺点在木材的光线的节上改变了声学的波浪时间轮廓。从刺激的声学的波浪运输比在未经触动的木头更慢慢地在有缺点的木头在一个洞后面指向这个区域。

简介：Anexperimentonwooddryingatdifferenttemperatureswasconductedtoshowthefractalnatureoftheporespacewithinwood.Cubicblocksmadefromginkgo(Ginkgobiloba)andChinesechestnut(Castaneamollissima)woodwereused.Samplesweredriedinovenatthetemperatureof20,40,60and100℃,respectively.Allthedryingprocedureslastedfourhours.Themasswasweighedandthedimensionsweremeasuredimmediatelyforeachsamplewheneveryprocedureofdryingended.Thefractaldimensionsof...

简介：Addinglowmolecularweightresinsintowoodcanovercomewoodintrinsicdefects,whichisanewapproachforthehighefficientutilizationofplantation.Thispaperreviewstheresearchesonlowmolecularweightresinsmodifyingwood,includingdifferentimpregnatingresins,impregnationtechnologies,propertiesoftreatedwoodandmechanismofmodifyingwood.Intheend,somesuggestionsandprospectsareputforward.

简介：伍德composites能通常在三部分被分类：把压成薄片的composites，混合composites和渗透的composites。每部分有它的自己的特征和罐头进一步被划分。这篇论文在中国介绍历史和木头composites的开发的国家。关于把胶水压成薄片的木材的研究是稀罕的，工业几乎不来到是。成就的一个伟人在混合composites被获得了，它是很好工业化的。scrimber上的许多研究被做了，中国研究人员正在寻找在中国开发scrimber工业的一个可行方法。中国研究人员也在学习木头塑料composites(世界和平理事会)花了那么多精力，但是它一直不由于高费用是工业化的。

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