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151篇 您的检索式:作者名="Scott X"
    题名 作者 年代 出处 被引量
1浙江天童木本植物小枝的“大小-数量”权衡显示文摘枝条大小和数量关系反映了植物适应环境胁迫的构型和生物量分配策略。该研究以浙江天童木本植物为对象,通过对小枝大小(横截面积)与数量(稠密度)关系的研究发现:1)小枝稠密度与枝截面积显著负相关(斜率为-1.32,CI=-1.48--1.17;p<0.05);2)在相同曝光度,在Ⅱ级曝光环境(植株40%-80%暴露在直射光中)中常绿植物比落叶植物单位小枝截面积的小枝稠密度高,而在Ⅰ级(植株<40%暴露在直射光中)和Ⅲ级(>80%暴露在直射光中)曝光环境中,小枝稠密度在两种生活型间无显著差异;3)在不同曝光度下,常绿植物单位枝条在Ⅰ和Ⅱ级比Ⅲ级曝光水平具有更高的小枝稠密度;但落叶植物单位枝条的小枝稠密度在3个曝光水平相同;4)相同枝条大小下,4m以下灌木比4m以上的亚乔木和乔木具有更高的小枝稠密度。总之,天童地区木本植物的小枝'大小-数量'关系符合Corner法则(描述枝叶'大小-数量'关系的法则),且在不同生活型间存在差异,常绿植物相对于落叶植物,灌木相对于乔木具有较高的小枝稠密度,从而有利于它们适应光资源的限制。许月 杨晓东 谢一鸣 徐艺露 Scott X CHANG 阎恩荣 2012植物生态学报2012,36,12:15
2纳米碳化钒强化TWIP钢加工硬化机制研究显示文摘弥散分布的纳米碳化钒颗粒能明显提高TWIP钢的屈服强度,但同时将在一定程度上降低加工硬化率。采用一个修正的物理模型来研究纳米碳化钒颗粒对一种实验室等级的FeMnC奥氏体TWIP钢加工硬化率的影响。试验发现在塑性变形过程中弥散分布的纳米碳化钒颗粒会加快位错累积速率,但也会降低孪晶形成速率。与不含析出相的TWIP钢相比,在小应变时含纳米碳化钒颗粒的TWIP钢加工硬化率较高,但随着应变量的增加其硬化率减小的速度高于不含析出相的TWIP钢,因此在高应变条件下含纳米碳化钒颗粒的TWIP显示出较低的钢加工硬化率。Liang ZY Huang M X Yen H W Scott C P 魏世同(翻译) 2014钢铁钒钛2014,35,1:3
3Discrete twinning dynamics and size-dependent dislocation-to twin transition in body-centred cubic tungsten显示文摘Body-centred cubic(BCC) metals are known to have unstable intrinsic stacking faults and high resistance to deformation twinning, which can strongly influence their twinning behaviour. Though twinning mechanisms of BCC metals have been investigated for more than 60 years, the atomistic level dynamics of twinning remains under debate, especially regarding its impact on competition between twinning and slip. Here, we investigate the atomistic level dynamics of twinning in BCC tungsten(W) nanowires using in situ nanomechanical testing. Quantitative experimental studies directly visualize that deformation twins in W nanowires have a minimum size of six-layers and grow in increments of approximately three-layers at a time, in contrast to the layer-by-layer growth of deformation twins in face-centred cubic metals. These unique twinning dynamics induces a strong competition with ordinary dislocation slip,as exhibited by a size-dependent dislocation-to-twin transition in W nanowires, with a transition size of ~40 nm. Our work provides physical insight into the dynamics of twinning at the atomic level, as well as a size-dependent dislocation-twinning competition, which have important implications for the plastic deformation in a broad class of BCC metals and alloys.Jiangwei Wang Anik H.M.Faisal Xiyao Li Youran Hong Qi Zhu Hongbin Bei Ze Zhang Scott X Mao Christopher R.Weinberger 2022Journal of Materials Science & Technology2022,,11:2
4Attitudes of Ch-inesemedical students towardthe IIME GlobalMinimum Essential Require-ments显示文摘Zhang X Li X Wan X Zeng C Scott CS Schaad DC 2004Teaching and Learning in Medicine2004,16,2:1
5Dynamics of the human oocyte microRNA transcriptome during maturation显示文摘Lonczak A Tao X Miller K Scott R Treff N 0,,:1
6Paradigm shifts in surface metrology, part I : historical philosophy 显示文摘Jiang X Q Scott P J Whitehouse D J 2007Proceedings of the Royal Society Part A : Mathematical Physical and Engineering Sciences2007,463,2085:1
7Gene-gene interaction between FGF20 and MAOB in Parkinson disease显示文摘Gao X Scott WK Wang G 0,,2:1
8Paradigm shifts in surface metrology, part II: the current shift 显示文摘Jiang X Q Scott P J Whitehouse D J 2007Proceedings of the Royal Society Part A : Mathematical Physical and Engineering Sciences2007,463,2085:1
9Davidon: RNA interference improves motor and neuropathological abnormalities in a Huntington's disease mouse mode显示文摘Scott Q H Patrick D S He X 2005PNAS2005,,16:1
10Paradigm shifts in surface metrology, Part II :The current shift 显示文摘Jiang X Q Scott P J Whitehouse D J ei al 2007Proceedings of the Royal Society A2007,463,2085:1
11Optimal methods for estimating kinetic isotope effects from different forms of the Rayleigh distillation equation 显示文摘Scott K M Lu X Cavanaugh C M 2004Geochim Cosmochim Acta2004,68,3:1
12Comparison study of the biorthogonal spline wavelet filting for areal rough surfaces显示文摘Xiao S J Jians X Q Blunt L Scott P J 2001Maching Tools&Manufacture2001,41,:1
13Binding of an ETS-related protein within the DNase I hypersensitive site of the HER2/neu promoter in human breast cancer cells 显示文摘Scott GK Daniel JC Xiong X 1994J Biol Chem1994,269,19:1
14A discrete numerical approach for modeling face stability in slurry shield tunneling in soft soils显示文摘ZHANG Z X HU X Y SCOTT K D 2011Computers and Geotechnics2011,38,:1
15Antimicrobial efficacy of a lactic acid and citric acid blend against Shiga toxinproducing Es cherichia coli, Salmonella, and pathogenic Escherichia coli biotype I oninoculated prerigor beef carcass surface tissue显示文摘SCOTT B R YANG X GEOMARAS I 2015J Food Protect2015,78,12:1
16Water management institutional reform: A representative look at northern China显示文摘Huang Q G Scott R Wang J X 2009agricultural water management2009,96,2:1
17Correlating motif analysis and morphological filters for surface texture analysis 显示文摘Lou S Jiang X Q Scott P J 2013Measurement2013,46,2:1
18Nondestructive and rapid estimation of hardwood foliar nitrogen status using the SPAD-502 chlorophyll meter显示文摘Scott X Changa Daniel J 2003Forest Ecol Manag2003,181,:1
19A comparative study of PtRu and PtRuSn thermally formed on titanium mesh for methanol electro-oxidation显示文摘Yang L X Allen R G Scott K 2004Journal of Power Sources2004,137,2:1
20Viability and longevity of pollen from transgenic and nontransgenic tall fescue (Festuca arundinacea) (Poaceae) plants显示文摘Wang Z Y Ge Y X Scott M 2004American Journal of Botany2004,91,4:1
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