منابع مشابه
Modeling Percent Tree Canopy Cover: A Pilot Study
0099-1112/12/7807–715/$3.00/0 © 2012 American Society for Photogrammetry and Remote Sensing Abstract Tree canopy cover is a fundamental component of the landscape, and the amount of cover influences fire behavior, air pollution mitigation, and carbon storage. As such, efforts to empirically model percent tree canopy cover across the United States are a critical area of research. The 2001 nation...
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That tired Ten-Percent claim pops up all the time. Last year, national magazine ads for U.S. Satellite Broadcasting showed a drawing of a brain. Under it was the caption, "You only use 11 percent of its potential." Well, they're a little closer than the ten-percent figure, but still off by about 89 percent. In July 1998, ABC television ran promotional spots for "The Secret Lives of Men," one of...
متن کاملAnnual Detection of Forest Cover Loss Using Time Series Satellite Measurements of Percent Tree Cover
We introduce and test a new method to detect annual forest cover loss from time series estimates of percent tree cover. Our approach is founded on two realistic assumptions: (1) land cover disturbances are rare events over large geographic areas that occur within a short time frame; and (2) spatially discrete land cover disturbances are continuous processes over time. Applying statistically rig...
متن کاملAcademic Outcomes and Texas Top Ten Percent Law
In this paper, I estimate the causal effect of attending a selective college on a student’s academic performance. My results differ from previous studies, because I estimate a local effect, identified only for students who enroll in a selective college but would not have been able to without the guaranteed admissions granted to them by Texas’ Top Ten Percent Law. Differing from many previous st...
متن کاملTen-percent solar-to-fuel conversion with nonprecious materials.
Direct solar-to-fuels conversion can be achieved by coupling a photovoltaic device with water-splitting catalysts. We demonstrate that a solar-to-fuels efficiency (SFE) > 10% can be achieved with nonprecious, low-cost, and commercially ready materials. We present a systems design of a modular photovoltaic (PV)-electrochemical device comprising a crystalline silicon PV minimodule and low-cost hy...
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ژورنال
عنوان ژورنال: OALib
سال: 2018
ISSN: 2333-9721,2333-9705
DOI: 10.4236/oalib.1104677