学科分类
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110 个结果
  • 简介:基于成核底层被激活由的假设在冷却下面宪政在起始的团结期间由邻近的谷物生长和溶质分发产生了,为有谷物精炼的铝合金的谷物尺寸的计算的一个模型被开发,在成核被二个参数统治的地方,i.e.growth限制因素Q并且在使参数P.The生长凉下来下面,限制因素Q与起始的率成正比在使开发和罐头凉下来下面宪政与强壮的潜在的成核粒子在合金直接被用作谷物精炼的一个标准。undercoolingparameterP能被认为是最大值在使三角洲T_c.For弱潜在的成核粒子凉下来下面宪政,RGS的使用将是更精确的。纯铝和AISi7合金的谷物精炼的试验性的数据是重合的与模型一起预言了结果。

  • 标签: 微粒加工 晶核形成 铝合金 材料加工
  • 简介:位于悉尼四季酒店内的Grain酒吧将向公众呈现出一种完全"私厨化"的理念及设计风格。设计师将Grain酒吧打造成一家融合了"手工艺"设计与实践的特色酒吧。其设计主要以木料为主,并且在室内植入分别经艺术家本人授权的各种各样的作品;手工艺实践邀请才华横溢、尤其是善于调制鸡尾酒的调酒师共同参与进来,独特的设计及富于特色的美食吸引和鼓励着当地赞助商,从而保证最大限度地将酒吧的业务复制到更广阔的目标市场。酒吧名"Grain"源自酿酒工艺中运用的"谷物",因此整体设计氛围的营造对木料这一元素进行了大量创意性的发挥和运用。其内部设计兼具优雅、温馨、舒适等实用性并综合了各种创意,设计手法近平夸张。酒吧内墙表面几乎全部裹以美国樱桃木,另加少许暗红色调,以突出酒吧设计对暖色调、鲜亮的黄铜贯穿始终的偏爱。

  • 标签: 酒吧 悉尼 设计风格 工艺实践 目标市场 酿酒工艺
  • 简介:Fieldandpotexperimentswereconductedusingindicaricevarietieswithdifferentialchalkiness.Thereweresignificantdifferencesinrootactivityamongthevarieties.Thepercentagesofchalkygrainsandchalkyareawerebothnegativelycorrelatedwithrootactivityexpressedasα-naphthylamineoxidationability(RA)pergramoffreshroot(RAfw),RAperspikelet(RAgrn),orRApersinkcapacity(RAsink).TheRAsinkwasmorecloselyrelatedtochalkinessthanRAfwandRAgrnwhenvarietiesdifferedgreatlyinpaniclesizeandgrainweight.ApplicationofNO3--Nfertilizeratheadingresultedinhigherrootactivityandreducedchalkiness.Applicationof10daysafterheadingunderdifferentchemicaltreatments(r=-0.8567*andr=-0.9211**,respectively).

  • 标签: 水稻 根系活力 白垩质 硝酸氮
  • 简介:Thispaperproposesa3-dimensionalcoarsegrainmodelofmicrotubulesandtreatsthetubulinmonomerasasphereofmultiplepatches,withparameterschosentoyieldexperimentalvaluesofbendingandstretchingstiffness.Themodelhasdemonstratedtheabilitytoproducethebistabilityoftubulinsheets,elasticdeformationnearthetip,andcrackingandpeelingofprotofilaments.Thismodelisexpectedtotakeintoaccountthestructuralandmechanicalaspectsunderlyingthephysicalmechanismofpolymerization/depolymerizationanddynamicinstabilityofmicrotubules.

  • 标签: 微管蛋白 模型 粗粮 动态不稳定 选择参数 弹性变形
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  • 简介:ThechemicalstateofgrainboundarycosegregationofCeandPinFe-P-CealloysystemwasstudiedbymeansofAugerElectronSpectroscopy(AES).TheAugerpeaksofCesegregatedatgrainboundariesarefoundwithintherangeof60~180eV.BycomparingwiththeAugerspectraoftheFe-Ce-Pintermetalliccompound,itissupposedthatthereisatwo-dimensionalinterfacialphaseatgrainboundarieswithCeandPcosegregationwhichissimilartothestructureoftheFe-Ce-Pcompound.

  • 标签: GRAIN BOUNDARY cosegregation CERIUM PHOSPHORUS AES
  • 简介:Thegrain-growthbehaviorofAl2O3powdercompactswithsmallcontents(<5wt%)ofvariousdopantswasstudied.Theexistenceoftabularsub-grainswereobservedwithallthefollowingdopants:V2O5,MgO+Y2O3andNa2B4O7+V2O3+Pr.Thetabularsubgrainsaredefinedastheabnormalgrainslongerthan30μmwithanaspectratio>50.Theycanbeobservedwhenthesinteringtemperaturearehigherthan1850℃。

  • 标签: 烧结氧化铝 矾土 异常晶粒长大 耐火材料 板状亚晶粒
  • 简介:通常为米饭谷物新颖决心被使用的二个化学方法为他们的效率被调查。方法1用bromothymol蓝色指示物做的,并且原则基于指示物根据存储米饭谷物的pH被改变在的颜色。方法2基于在米饭谷物的存储期间败坏的peroxidase活动。两个方法被用于六泰国大米的栽培变种的新鲜米饭索引的决心,四从非蜡制的米饭栽培变种(KDML105,ChaiNat1,ChaiNat2和Phitsanulok2)并且二从蜡制的米饭栽培变种(San-pah-tawng和RD6)。瑞斯样品被作为intheformsof稻并且擦亮米饭。新鲜米饭索引每二个星期在24个星期(六个月)的存储时期上用两个方法被决定。两个方法能够检测新鲜米饭索引,这被发现。化学答案的颜色关于米饭谷物的年龄变化了,它能spectrophotometrically被检测。作为稻被保留了的瑞斯谷物提供了更一致的结果。因为它简单、有效、便宜,方法1为工业申请被推荐。

  • 标签: 化学技术 水稻品种 保鲜 稻米 老化指数 颜色变化
  • 简介:ConsumptionofriceisthemainsourceofmicronutrientstohumaninAsia.Apaddyfieldwithunknownanthro-pogeniccontaminationinDeqingCounty,ZhejiangProvince,Chinawasselectedtocharacterizethespatialvariabilityanddistributionofmicronutrientsinricegrainandsoil.Atotalof96pairedsoilandricegrainsampleswerecollectedatharvest.Themicronutrientsinthesoilsampleswereextractedbydiethylenetriaminepentaaceticacid(DTPA).Themeanmicronutrientconcentrationsinricegrainwere3.85μgCug-1,11.6μgFeg-1,39.7μgMng-1,and26.0μgZng-1.Themeanconcentrationswere2.54μgg-1forDTPA-Cu,133.5μgg-1forDTPA-Fe,30.6μgg-1forDTPA-Mn,and0.84μgg-1forDTPA-Zn.Semivariogramsshowedthatmeasuredmicronutrientsinricegrainweremoderatelydependent,witharangedistanceofabout110m.TheconcentrationsoftheDTPA-extractablemicronutrientsalldisplayedstrongspatialdependency,witharangedistanceofabout60m.TherewassomeresemblanceofspatialstructurebetweensoilpHandthegrainCu,Fe,Mn,andZn.Byanalogy,similarspatialvariationwasobservedbetweensoilorganicmatter(SOM)andDTPA-extractablemicronutrientsinthesoil.Krigingestimatedmapsoftheattributesshowedthespatialdistributionsofthevariablesinthefield,whichisbeneficialforbetterunderstandingthespatialvariationofmicronutrientsandforpotentiallyrefiningagriculturalmanagementpracticesatafieldscale.

  • 标签: 空间变异性 微量元素 水稻土 稻米
  • 简介:人口从生气betweenKoshihikari导出的BIL(回交近交系)(好吃和食欲品质,装饰用的梨树)并且Kasalath(差的质量,indica)被用来为直链淀粉内容(交流)分析QTL,gelatinization温度(GT),胶化一致性(GC)和蛋白质内容(PC)。为交流的包括2的八主要效果的QTL,3为GT,2为GC并且1为PC被识别。而且,为交流的包括7的27epistaticQTL对,5为GT,4为GC和11forPC是当时,也检测了为交流和GT,有主要基因的一主要效果的QTL分别地被检测。因此,主要效果的QTL可能比epistaticQTL为当前的变化更负责。结果显示主要效果的QTL是那些特点的主要基因基础。为PC,epistaticQTL不管多么比主要效果的QTL解释了全部的变化的大得多的部分,建议epistaticloci是如此的特点的主要基因基础。在实验,染色体片断替换线(CSSL)被用来证实在BIL人口检测的知效应QTL的可靠性。为在BIL分析的4traits的8主要效果的QTL,6被证实,2由CSSL分析仍然保持未确证。

  • 标签: 基因座 分子标志器 染色体分段代替线 BIL 胶凝温度 水稻
  • 简介:Anunderstandingofthetransportmechanismofgravel-bedriversisveryimportantfortherivermanagementandengineeringworks.Themainobjectiveofthisstudywastoconductaseriesoflaboratoryexperimentinasteepflumetoinvestigatetheparticlesegregationandthetransportrateofnonuniformgravel.Mediansizesof15mmand7.5mm,andgradationcoefficientsof1.5and2.0wereselectedfortheparticlesizedistributionsofnonuniformgravel.Inadditiontothe36setsofdatacollectedinthisstudy,635setsofexistingdataforgravelwithbothnonuniformandnearlyuniformsizeswereanalyzed.Accordingtotheresultsofthesieveanalysisandtherelatedtheory,hidingfunctionsforbothparticlesizedistributionsofthisstudywerederived.AnattemptwasmadetodevelopanEinstein-typetransportrelationshipfornonuniformgravelusingdimensionlessparameterswithmeansizeasarepresentativeparticlesize.AmodifiedSchoklitsch-typesedimenttransportequationwithacriticalunitflowdischargewasalsodevelopedtoreasonablypredictthetransportrateofgravels.Inaddition,anartificialneuralnetwork(ANN)modelwithaback-propagationnetwork(BPN)algorithmwasalsoappliedinthisstudy.

  • 标签: 沉积输运 河床负荷 陡峭水道 人工神经网络
  • 简介:Chinaismarchingontowardsthe21stcenturywithfullconfidence,andisforgingaheadtowardsthegoalofsocialistmodernization.Neartheturnofthecentury,apieceofsensationalnewswastransmittedfromabroad:"WhowillsupportChinabytheyear2030?"ThisproblemwasputforwardbyMr.Brown,directoroftheAmericanResearchInstituteofWorldObservation,HesaidthatChina’sPopulationisincreasing,itscultivatedlandisdecreasing,sownareasarebeingreducedandwillcontinuetobereduced.Theperunitareayieldisapproachingitsultimate,sothattotaloutputwillcontinuetofall.Bytheyear2030,grainoutputproducedbyChinaitselfwillbereducedto263milliontons,andwillnotmeetthegrainneedsof479milliontonsor568milliontonsor641milliontonsforapopulationof1.6billion(consumptionpercapitaiscountedintermsof300kg,350kg

  • 标签: 门司
  • 简介:Themicro-characteristicsofthestreakymarksandthecorrespondingsubstratesurfaceofgalvannealed(GA)steelsheetshavebeeninvestigatedusingSEMandFIB.Thestreakymarkareaseemstohavemanycavities,similartocraters,whichscatterlightandmakethesurfaceappeardarkerwhencomparedwiththesurroundingnormalarea.Moreover,itisfoundthattheirregularityordifferenceinsteelgrainsizetendstoaffectthesurfacequalityoftheGAsteelsheets.Duringalloying,thediffusionspeedofZn-Feonthegrainboundaryisfasterthanthatatthecenterofthegrain,whichresultsintheselectiveformationofcrater-likemorphologyinthecoatingareawithlargersteelgrains.DuetothecleargrainboundaryofIFsteel,apparentstreakymarkswillbeformedonthecoatin,iftheIFsteelsurfaceconsistsofrainsofirreularsize.

  • 标签: 晶粒尺寸效应 遗传标记 IF钢 基板 合金化热镀锌 表面质量
  • 简介:ThegrainrefiningmechanismofC-Mnsteelsheetoncompactstripproduction(CSP)linewasinvestigatedinthisstudy.Thegrainwasabout100μmafterF1passanddecreasedallthewayoftherollingprocess(F2-F6)to15μm.Repeatedphasetransformationexperimentwasconductedtothesteelforgrainrefinement.Thephasetransformationat860℃and920℃canrefinethegrainsizeto7.5μm.

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  • 简介:ThesegregationandinteractionofREM,phosphorusandtinongrainboundariesofα-FewereinvestigatedbyAugerspectrometryandSEM.TheresultsshowthatREM,PandSntendtosegregateongrainboundariesofα-Fe.AddingREMintoFe-SnalloywithlowS,PcontentscouldsuppressthesegregationofSnongrainboundaries.ThesegregationofSnwoulddecreasewithincreasingofREM.InFe-Sn-PalloyPwouldsuppressthesegregationofSn.ThesegregationofPwouldbesuppressedbysegregationofREM.ThetrendofPsegre-gationdecreaseswithincreasingofREM.WithincreasingofREMthesegregationofSnatfirstisloweredbutthenfollowedwithanincreasing.AddingREMintoFe-SnandFe-Sn-Palloyscouldsuppressintercrystallinefractureofα-Featlowtemperatures.

  • 标签: RE P Sn Α-FE GRAIN BOUNDARY