نتایج جستجو برای: grain

تعداد نتایج: 61781  

2004
Mara Helmuth Teresa Davis

Geological data from measurement of sediment granulation over a 24 hour period in a lake formed by the Matanuska Glacier in Alaska was applied to synthesis parameters. The parameters measured include time, grain size and grain frequency. Several mapping strategies were employed to generate different types of additive and granular synthesis sound materials: 1) time to event grouping, sediment gr...

2015
Ann M. Albertson Marla Reicks Nandan Joshi Carolyn K. Gugger

BACKGROUND The purpose of this study was (1) to describe intakes of total grain and whole grain in the United States over the past 12 years and major dietary sources, and (2) to determine the relationship between whole grain intake and adiposity measures for children and adults. METHODS Cross-sectional dietary data from the continuous National Health and Nutrition Examination Survey 2001-12 (...

2007
Shen J. Dillon Martin P. Harmer

THE following comments are directed to the sections (2) ‘‘revisit to the grain growth problems in alumina’’ and (3) grain growth without a liquid phase in the article of concern. The purpose of this comment is to challenge the authors’ assertions and refute the following arguments, namely, first that ‘‘MgO can be considered a very effective grain growth promoter in the sintering of alumina,’’ s...

2005
Zhiming Feng Yanzhao Yang Yaoqi Zhang Pengtao Zhang Yiqing Li

China’s grain-for-green policy of converting steep cultivated land to forest and grassland is one of the most important initiatives to develop its western inland regions. Using a multi-objective programming model, this study assessed the impacts of this policy in the upper reaches of the Yangtze River and the upper and middle reaches of the Yellow River. In addition to the strategic planning of...

2016
J. F. Devlin

For over a century, hydrogeologists have estimated hydraulic conductivity (K) from grain-size distribution curves. The benefits of the practice are simplicity, cost, and a means of identifying spatial variations in K. Many techniques have been developed over the years, but all suffer from similar shortcomings: no accounting of heterogeneity within samples (i.e., aquifer structure is lost), loss...

2006
Albert Xin Jiang Kevin Leyton-Brown

Action-Graph Games (AGGs) (Bhat & Leyton-Brown 2004) are a fully expressive game representation which can compactly express strict and context-specific independence and anonymity structure in players’ utility functions. We present an efficient algorithm for computing expected payoffs under mixed strategy profiles. This algorithm runs in time polynomial in the size of the AGG representation (whi...

2017
Shih-Wei Liang Ren-Zheng Qiu Te-Hua Fang

The dynamic nanomechanical characteristics of Cu films with different grain boundaries under nanoindentation and scratch conditions were studied by molecular dynamics (MD) simulations. The type of grain boundary is the main factor in the control of the substrate atoms with respect to the size of dislocations since the existence of the grain boundary itself restricts the movement associated with...

2018
G. H. Li

The grain boundary embrittlement (GBE) of metal copper caused by bismuth segregation has been extensively studied both experimentally and theoretically(l-10). By using the orientation-controlled bicrystals, the strong dependence of Bi segregation and GBE upon grain boundary(GB) structures has been revealed (3-7). A systematic study of the dependence of the GBE upon the GB structures, for [ 1 lo...

1996
David K. Lowenthal Vincent W. Freeh

A coarse-grain parallel program typically has one thread (task) per processor, whereas a ne-grain program has one thread for each independent unit of work. Although there are several advantages to ne-grain parallelism, conventional wisdom is that coarse-grain parallelism is more eecient. This paper illustrates the advantages of ne-grain parallelism and presents an eecient implementation for sha...

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