Results 11 to 20 of about 221,927 (260)
Estimating Effective Leaf Area Index of Winter Wheat Based on UAV Point Cloud Data
Drones, 2023 Leaf area index (LAI) is a widely used plant biophysical parameter required for modelling plant photosynthesis and crop yield estimation. UAV remote sensing plays an increasingly important role in providing the data source needed for LAI extraction. This
Jie Yang +7 more
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Flow-Cut Gaps for Integer and Fractional Multiflows [PDF]
Proceedings of the Twenty-First Annual ACM-SIAM Symposium on Discrete Algorithms, 2010 24 pages, 10 figures. Results presented first at the Symposium on Discrete Algorithms (SoDA 2010)
Chandra Chekuri +2 more
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GAPS BETWEEN FRACTIONAL PARTS, AND ADDITIVE COMBINATORICS [PDF]
The Quarterly Journal of Mathematics, 2015 We give bounds on the number of distinct differences $N_a-a$ as $a$ varies over all elements of a given finite set $A$, and $N_a$ is a nearest neighbour to $a$.
Balog, Antal +2 more
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ASSESSMENT OF LIGHT ENVIRONMENT FOR HERBACEOUS VEGETATION IN SEMI-NATURAL GRASSLAND USING TIME-SERIES UAV DATA [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Grasslands are important ecosystems containing unique biodiversity. It has been reported that some herbaceous species inhabiting grassland reduced its number and became extremely rare.
N. Miura, Y. Niwa, S. Yamada
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Direct Measurements of Fractional Quantum Hall Effect Gaps [PDF]
Physical Review Letters, 2007 We measure the chemical potential jump across the fractional gap in the low-temperature limit in the two-dimensional electron system of GaAs/AlGaAs single heterojunctions. In the fully spin-polarized regime, the gap for filling factor nu=1/3 increases LINEARLY with magnetic field and is coincident with that for nu=2/3, reflecting the electron-hole ...
Khrapai VS +7 more
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Spin susceptibility and gap structure of the fractional-statistics gas [PDF]
Physical Review B, 1994 35 pages, written in REVTeX, 16 figures available upon request from jared@large.stanford ...
Levy, J. L., Laughlin, R. B.
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Within-field variation of leaf area index (LAI) plays an essential role in field crop monitoring and yield forecasting. Although unmanned aerial vehicle (UAV)-based optical remote sensing method can overcome the spatial and temporal resolution ...
Yang Song, Jinfei Wang, Jiali Shang
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Retrieving Forest Canopy Elements Clumping Index Using ICESat GLAS Lidar Data
Remote Sensing, 2021 Clumping index (CI) is a canopy structural variable important for modeling the terrestrial biosphere, but its retrieval from remote sensing data remains one of the least reliable.
Lei Cui +11 more
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Fundamental gaps of the fractional Schrödinger operator
Communications in Mathematical Sciences, 2019 We study asymptotically and numerically the fundamental gap -- the difference between the first two smallest (and distinct) eigenvalues -- of the fractional Schrödinger operator (FSO) and formulate a gap conjecture on the fundamental gap of the FSO.
Bao, Weizhu +3 more
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Remote Sensing, 2019 Both vegetation multi-angular and LiDAR (light detection and ranging) remote sensing data are indirectly and directly linked with 3D vegetation structure parameters, such as the tree height and vegetation gap fraction, which are critical elements in ...
Qiang Wang, Wenge Ni-Meister
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