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18 个结果
  • 简介:Theeffectsofanexogenousnitricoxidedonor(sodiumnitroprusside,SNP),aNOscavenger2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxode(PTIO)andcarboxy-PTIOpotassiumsalt(cPTIO)ontheembryogerminationofSorbuspohuashanensiswerestudiedinapetridishtest.SNPat0.5–5mmolL-1increasedgerminationpercentage,meantimetogermination,germinationindexandgerminationenergycomparedwiththecontroltodifferentdegrees.Treatmentwith2mmolL-1SNPimprovedgerminationmostsignificantly;embryogerminationpercentageformothertree1(91.11%)andmothertree2(64.44%)weremuchhigherthanthecontrol.Inaddition,excessiveSNPlevelsdidnotenhanceembryogermination.CombinedtreatmentwithSNPandanNOscavengerdelayedembryogermination.TreatmentwithcPTIOinhibitedembryogermination;germinationpercentagewas42.22%andwaslowerthanthatofthecontrol.TheseresultsshowthatlowconcentrationsofexogenousNOcanenhancetheembryogerminationofS.pohuashanensis,providingasimple,effectivewayforpromotinggerminationofS.pohuashanensis.

  • 标签: Mountain ash Embryo GERMINATION NITRIC OXIDE
  • 简介:这份报纸论述nanometer-CeO2的影响的比较研究(tribological和锂的润滑性质上的nano-CeO2)和温度润滑。nanocrystals的形态学和结构分别地借助于传播电子显微镜学(TEM)和X光检查衍射(XRD)被描绘。磨擦并且穿测试在磨擦上被进行并且穿测试者。有nanometer-CeO2的增加的锂油脂举办的结果表演更好减少磨擦并且反穿性能比基础油脂的。当在油脂的添加剂是0.6时?wt%,磨擦系数(COF)并且穿疤直径(WSD)在28%和13%减少分别地与基础油脂作比较。有0.6的基础油脂和油脂?wt%nanometer-CeO2拥有最低平均COF并且在50点穿宽度?????|

  • 标签: 润滑油 添加剂 铈氧化物 性质 扫描电子显微镜 表面形态学