学科分类
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5 个结果
  • 简介:体积变化是影响木材处理的一个无常元素。我们学习了优秀缺点在传统的木材处理引起并且建立了一条优化途径的木头的体积变化,用一个柔韧的优化方法。我们使用了生产学习在板厚度和原料日志之间的关系的可接受的板的全部的数字,用控制改进板的输出,减少副产品的数量,并且降低生产费用的板体积的变化的一个启发式的搜索算法。柔韧的优化方法能有效地在木材处理控制体积变化的影响,远及增长处理的可能的使用减少切的废物并且增加利润,最大化木材的利用比率,在处理阻止废物,栽培树种类的生产类型并且节省森林资源。

  • 标签: 体积变化 木材处理 优化 柔韧 生产费用 搜索算法
  • 简介:BambooOSB(BOSB)mediumexperimentallineandkeyequipmentsarepresentedforthefirsttimebasedontheanalysisofBOSBproductiontechnologiesandprocessesrequirements.ComponentofBOSBmediumexperimentallineandkeyequipmentsstated.ThepaperillustratedBOSBflaker,glueblender,orientingformer.Thenmediumexperimentallineisgiventoagreatdealoftestrunandoptimization.ThetestsindicatedthatthemediumexperimentallineoperatedsmoothlyforproducingBOSB.TestedBOSBkeyperformanceindicatorswerehigherthantheLY/T1580-2000(OSB/4).

  • 标签: BAMBOO OSB(BOSB) MEDIUM EXPERIMENTAL LINE running
  • 简介:Toobtainasuitableconditionforelectroporationtransformationinindicarice,the10-day-oldimmatureembryoswereselectedforoptimizationexperiments.Theresultsshowedthatonepulseat850V/cm,950μFcapacitance,200μLelectroporationbufferwith70mmol/Lsodiumglutamate,100μg/mLplasmid,50μg/mLcarrierDNA,20embryospercuvette,0°CtreatmentandCCmediumwerethebestparameters,whichnotonlyimprovedthetransformationefficiencyto30.89%,butalsoamelioratedtheembryosurvivalratioto95.92%.Tofurtherverifythepracticabilityofthiscondition,theembryosfromanotherindicaricevarietyandaricetypeIImetallothionein-likegene(OsMT2bL)promoter::mgfp5::gusAconstructweretested,andspecificGUSexpressionontheembryoswasvisualizedbyhistochemicalstaining.TheresultsshowedthattheGUSexpressionontheembryosactivatedbytheOsMT2bLpromoterwasmainlyconcentratedontheapicalpointoftheplumulewhereastheexpressiondrivenbyCaMV35Spromoterwasdistributedonnearlyallareasoftheelectroporatedtissues.Theseresultsindicatedthattheoptimizedembryoelectroporationconditionscouldbeusednotonlyingenetictransformationofindicaricebutalsoinassayofgeneregulationonembryos.

  • 标签: 电穿孔 稻子 胚芽 瞬变现象
  • 简介:AllfactorsaffectingthePCRsysteminPinusmassonianaLambwereinvestigatedonebyone.TheresultsshowthattheoptimumPCRsystemofEST-SSRwere:2μL10×Buffer(Mg2+Free),30ngtemplateDNA,0.1875mmol/LdNTPs,3.75mmol/LMg2+,8pmolprimerpair,1.0UTaqDNApoly-meraseintotal20μLreactionsystem.Finally,atotalof11isolatesofP.massonianawasusedfortestingthestabilityofthePCRamplification.TheresultsprovethattheoptimumPCRsystemwasstable,reliable,highlyrepetitive.

  • 标签: PINUS massoniana EST-SSR MARKER single FACTOR
  • 简介:AccordingtotheunificationprincipleofsystemstructureandsystemfunctionoftheWaterResourceConservationForests,sevenfactorswereselectedfromstandspatialstructure,treesstructureandhealthyofwoods,themultifunctionmanagementoptimizationmodeltargetwasconfirmedbyusingnonlinearitymulti-objectiveprogrammingapproach,andthetargetfunction-standspatialstructurehomogeneityindexwasdefinedtoestablishspatialoptimizationmodelswithrestrainingconditionssetupindiversityofstandstructureandspatialstructure.ThespatialstructureofavailabletypicalstandinthewetlandareainsouthernDontingLakewasoptimizedbymeansofselectivecuttingandreinforcementplanting.Theresultsshowedthatthespatialstructurewasimprovedobviouslyandtreesdiversityandstandhealthwerenotweakened.It’ssuggestedthattheestablishedoptimizationmodelcaneffectivelyguidemultifunctionmanagement,standstructureoptimizationandthesteadinessofecologicalecosystemanditisconvenientandoperableinpractice,andit’sveryimportanttoprotectandrecoverecosystemofWaterResourceConservationForests.

  • 标签: water resource CONSERVATION FOREST southern Dongting