搜索结果: 1-13 共查到“理学 preferential”相关记录13条 . 查询时间(0.062 秒)
Vertices of high degree in the preferential attachment tree
random graphs web graphs concentration of measure martingales
2011/2/28
We study the basic preferential attachment process, which generates a sequence of random trees, each obtained from the previous one by introducing a new vertex and joining it to one existing vertex,ch...
Preferential attachment in growing spatial networks
Preferential attachment growing spatial networks
2010/11/25
We obtain the degree distribution for a class of growing network models on flat and curved spaces.These models evolve by preferential attachment weighted by a function of the distance between nodes.
Preferential Flow and Melt Water Retention in Cold Snow Packs in West-Greenland
Preferential Flow Melt Water Retention Cold Snow Packs West-Greenland
2009/10/23
Runoff from seasonal snow covers in Greenland provides the major source of
stream flow in the non-glacierized catchments, and has gained interest in relation
to hydropower potentials and water suppl...
Significance of tree roots for preferential infiltration in stagnic soils
tree roots stagnic soils preferential infiltration
2009/10/10
It is generally recognized that roots have an effect on infiltration. In this study we analysed the relation between root length distributions from Norway spruce (Picea abies (L.) Karst), silver fir (...
Connecting ecohydrology and hydropedology in desert shrubs：stemflow as a source of preferential flow in soils
ecohydrology soils hydropedology water flow
2009/7/22
Ecohydrology and hydropedology are two emerging fields that are interconnected. In this study, we demonstrate stemflow hydrology and preferential water flow along roots in two desert shrubs (H. scopa...
Dye staining and excavation of a lateral preferential flow network
flow network solute transport flow paths
2009/7/22
Preferential flow paths have been found to be important for runoff generation, solute transport, and slope stability in many areas around the world. Although many studies have identified the particula...
Preferential transport of water and 131Iodide in a clay loam assessed with TDR-techniques and boundary-layer flow theory
clay loam soil moisture variations boundary-layer flow
2009/6/8
Rapid soil moisture variations were measured with TDR equipment at five depths ranging from 0.1 to 0.9 m during five consecutive infiltration experiments under ponding. Each time, 27 mm of water were ...
Depth distribution of preferential flow patterns in a sandy loam soil as affected by tillage
sandy loam soil tillage flow patterns
2009/6/8
Dye-tracer studies using the anionic dye Brilliant Blue FCF were conducted on a structured sandy loam soil (Typic Agrudalf). 25 mm of dye solution was applied to the surface of 11 1.6 x 1.6 m field p...
A weighted network model based on the preferential selection of edges
Weighted networks Strength distribution Weight distribution
2010/9/15
A model for the growth of weighted networks is proposed. The model is based on the edge preferential selection. By the master equation approach, the distributions of strength, weight and degree are pr...
利手、优势足及扣手的遗传方式初探Pilot Study of Hereditary Mode on Handedness,Preferential Foot and Hand-Clasping
利手 优势足 扣手 一侧优势功能 家系分析 遗传方式
2007/12/29
采用Slater区分单基因和多基因遗传的计算模式及Smith无偏分析方法对21个家系资料的分析表明：利手、优势足、扣手特征均为常染色体单基因显性遗传，R型为显性性状。虽然环境因素对这类特征的表现也有一定的影响，但遗传因素仍起主要作用。
Small World Effects in a Harmonious Unifying Hybrid Preferential
Model Networks
harmonious unifying hybrid preferential model small world effect network science
2007/8/15
2007Vol.48No.2pp.377-383DOI:
Small World Effects in a Harmonious Unifying Hybrid Preferential
Model Networks
FANG Jin-Qing, BI Qiao, LI Yong, LU Xin-Biao, and LIU Qiang
...
Unified Model for Generation Complex Networks with Utility
Preferential Attachment
generation complex networks utility preferential attachment
2007/8/15
2006Vol.46No.1pp.183-186DOI:
Unified Model for Generation Complex Networks with Utility
Preferential Attachment
WU Jian-Jun,1,2 GAO Zi-You,1,2 and SUN Hui-Jun1,2
1 State...
Nonlinear Dynamical Behavior in BS Evolution Model Based on
Small-World Network Added with Mechanism of Preferential
Connection
power-law behavior small-world network evolution model preferential connection
2007/8/15
2006Vol.45No.3pp.493-498DOI:
Nonlinear Dynamical Behavior in BS Evolution Model Based on
Small-World Network Added with Mechanism of Preferential
Connection
ZHANG Ying-Yue and CHE...