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388篇 您的检索式:作者名="Jonard"
    题名 作者 年代 出处 被引量
1凋落叶空间扩散模型在常绿阔叶林的适用性分析显示文摘利用凋落叶空间扩散模型研究单株植物的凋落叶扩散过程,这对预测凋落叶在地表的分布格局有重要意义,本文依据浙江天童20hm^2动态监测样地植被调查数据和叶凋落量数据,分别对20种目标树种进行凋落叶空间扩散模型的拟合,以及模型适用性分析,模型假设叶凋落量和植株胸径之间服从异速生长关系,并且叶凋落量随距离呈指数降低,通过极大似然法估计模型参数,结果表明:所有树种实际叶凋落量和理论叶凋落量相关性显著;但树种间的模型预测精度相差较大,各树种理论叶凋落量解释实际叶凋落量变异的百分比为16.0%~74.0%,平均为49.3%,模型预测精度与叶凋落量数据的标准差、树种平均胸径、树种平均叶片干质量呈显著正相关.根据各树种的分布格局,使凋落物筐覆盖到不同胸径母树周围不同距离处,确定各树种的最优扩散函数,以及不断改进已有的扩散函数可以提高模型的预测精度。赵青青 刘何铭 Mathieu Jonard 王樟华 王希华 2014应用生态学报2014,25,11:3
2EMR of large, sessile, sporadic nonampullary duodenal adenomas: technical aspects and long-term outcome (with videos)显示文摘Sina Alexander Michael J. Bourke Stephen J. Williams Adam Bailey Jonard Co 2009Gastrointestinal Endoscopy2009,,1:2
3Network structure and thediffusion of knowledge显示文摘Cowan R Jonard N 2004Journal of EconomicDynamics and Control2004,28,15:1
4Knowledge Dynamics in a Network Industry 显示文摘COWAN R JONARD N OZMAN M 2004Technological Forecasting Social Change2004,71,5:1
5Bilateral collaboration and the emergence of innovation networks显示文摘Cowan R Jonard N Zimmermann J B 2007Management Science2007,53,7:1
6Ultrasound examination o{ polycystie ovaries is it worth counting the {ollicles? 显示文摘Jonard S Robert Y Cortet-Rudelli C 2003Hum Reprod2003,18,:1
7The dynamics of collective invention显示文摘COWAN R JONARD N 2003Journal of Economic Behavior & Organization2003,52,4:1
8Network structure and the diffusion of knowledge 显示文摘Cowan R Jonard N 2004Journal of Economic Dynamics and Control2004,28,8:1
9Network- independent partner selection and the evolution of innovation networks显示文摘Baum J A C Cowan R Jonard N 2010Management Science2010,56,11:1
10Knowledge portfolios and the organization of innovation networks 显示文摘Cowan R Jonard N 2009Academy of Management Review2009,34,2:1
11Serum anti-Mullerian hormone as a surrogate for antral follicle count for definition of the polycystic ovary syndrome显示文摘Pigny P Jonard S Robert Y 2006Clin Endocrinol Metab2006,91,3:1
12Whole mitochondrial genome screening in maternally inherited non syndromic hearing impairment using a microarray resequencing mitochondrial DNA chip显示文摘Leve que M Marlin S Jonard L 2007Eur J Hum Genet2007,15,:1
13Network structure and the diffusion of knowledge显示文摘COWAN R JONARD N 2004Journal of Economic Dynamics & Control2004,28,8:1
14Network structure and the diffusion of knowledge 显示文摘COWAN R JONARD N 2004Journal of Economic Dynamics & Control2004,,28:1
15SLC26A4 gone is frequently involved in nonsyndromic hearing impairment with enlarged vestibular aquednet in Caucasian populations显示文摘Albert S Blcns H Jonard L 0,,06:1
16In vitro micrografting and its applications to fruit science 显示文摘JONARD R HUGARD J MACHEIX J J 1983Sci Hortic1983,20,1:1
17Network Structure and the Diffusion of Knowledge显示文摘COWAN R JONARD N 2004Journal of Economic Dynamics& Control2004,28,15:1
18Knowledge dynamics in a network industry显示文摘Cowan R Jonard N Ozman M 2004Technological Forecasting and Social Change2004,71,:1
19Detection by immunogold labelling of P75 readthrough protein near an extremity of beet necrotic yellow vein virus particles显示文摘Anne-Marie Haeberlé Christiane Stussi-Garaud Corinne Schmitt J. -C. Garaud K. E. Richards H. Guilley G. Jonard 1994Archives of Virology (-)1994,,1:1
20Network Structure and the Diffusion of Knowledge显示文摘Cowan R Jonard N 2004Journal of Economic Dynamics & Control2004,28,:1
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