منابع مشابه
Effects of the Root Network and Canopy of Stipagrostis pennata on wind erosion in Sabzevar
Soil erosion and sand movement is one of environmental threats of the desert areas and vegetation partially prevents the creation of this phenomenon. One of the most important species growing in Sabzevar desert plains and sandy dunes, regarding too dense canopy and their root density, which have a considerable impact on soil protection and prevent movement of sands, is Stipagrostis pennata. ...
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Network systems are hard to debug because they are inherently parallel and non-deterministic. Canopy assists with network debugging by putting the entire network system into a controlled emulation environment constructed from virtual machines and a simulated network. This puts all variables under the user’s control and provides a coherent, omniscient viewpoint of the entire system. To aid the u...
متن کاملInverting a canopy re ̄ ectance model using a neural network
An o-nadir canopy re¯ ectance model, the Liang and Strahler algorithm for the Coupled Atmosphere and Canopy (CAC) model, was used to simulate multi-angle re¯ ectances based on various combinations of canopy bio-physical parameters. Biophysical parameters such as leaf angle distribution (LAD) and leaf area index (LAI) were input to the CAC model along with re¯ ectances of leaf and soil and aeros...
متن کاملThe Campus Canopy
M aster o f Cerem onies M artha G ay announces tha t President Roosevelt and his wife, several cabinet m em bers and their guests will be present at a hall in honor of President Roosevelt on S a tu r day night, Janu ary 30, in the dining hall President Roosevelt will be represented by Dody W ilson ; M rs. Roosevelt, Laura D uncan; Sec. H ull, Ethel Stallings; M rs. W allace, M ary H udson, A n...
متن کاملDevelopment of a canopy
The U.S. National Institute for Occupational Safety and Health (NIOSH) conducted a study to determine the effectiveness of a filtered air delivery system to reduce respirable dust exposure of roof bolter operators in underground coal mines. When performing roof bolting operations, roof bolter operators may experience exposure to high levels of respirable dust during a working shift, especially ...
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ژورنال
عنوان ژورنال: Nature
سال: 1993
ISSN: 0028-0836,1476-4687
DOI: 10.1038/366502c0