Results 51 to 60 of about 4,971,302 (317)
The Red-Edge Effects in Laurdan Solutions
Zeitschrift für Naturforschung A, 2003 The luminescence spectrum of laurdan in glycerol consists of two bands with maxima at 425 and 500 nm. The strong dependence of this spectrum on the energy of the excitation quanta is demonstrated. When, excited on the red-edge slope of the absorption band, it is investigated at various temperatures.
V. I. Tomin, J. Heldt
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Sensitivity of Vegetation Indices for Estimating Vegetative N Status in Winter Wheat
Sensors, 2019 Precise sensor-based non-destructive estimation of crop nitrogen (N) status is essential for low-cost, objective optimization of N fertilization, as well as for early estimation of yield potential and N use efficiency.
Lukas Prey, Urs Schmidhalter
doaj +1 more source
Potential of UAV-Based Active Sensing for Monitoring Rice Leaf Nitrogen Status
Frontiers in Plant Science, 2018 Unmanned aerial vehicle (UAV) based active canopy sensors can serve as a promising sensing solution for the estimation of crop nitrogen (N) status with great applicability and flexibility.
Songyang Li +9 more
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Drones, 2023 The detection and mapping of winter wheat and the canopy cover of associated weeds, such as chickweed and hairy buttercup, are essential for crop and weed management.
Clement E. Akumu, Sam Dennis
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International Journal of Applied Earth Observation and Geoinformation, 2020 Rubber (Hevea brasiliensis) tree cultivation is being continuously expanded northward by replacing evergreen forests and swidden-related regenerated vegetation across the uplands of mainland Southeast Asia (MSEA), e.g., Laos, a landlocked mountainous ...
Chi-wei Xiao +4 more
semanticscholar +1 more source
Remote Sensing, 2020 Red-edge (RE) spectral vegetation indices (SVIs)—combining bands on the sharp change region between near infrared (NIR) and visible (VIS) bands—alongside with SVIs solely based on NIR-shoulder bands (wavelengths 750–900 nm) have been shown to perform ...
Hafiz Ali Imran +7 more
semanticscholar +1 more source
On Partitioning the Edges of 1-Plane Graphs
, 2016 A 1-plane graph is a graph embedded in the plane such that each edge is crossed at most once. A 1-plane graph is optimal if it has maximum edge density.
Lenhart, William J. +2 more
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Frontiers in Plant Science, 2020 High-throughput, non-invasive phenotyping is promising for evaluating crop nitrogen (N) use efficiency (NUE) and grain yield (GY) formation under field conditions, but its application for genotypes differing in morphology and phenology is still rarely ...
Lukas Prey, Yuncai Hu, Urs Schmidhalter
doaj +1 more source
Dark-adapted red flash ERGs in healthy adults [PDF]
, 2018 Purpose: The x-wave of the dark-adapted (DA) ERG to a red flash reflects DA cone function. This exploratory study of healthy adults aimed to investigate changes in the DA red ERG with flash strength and during dark adaptation to optimise visualisation ...
A Chia +25 more
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The vegetation red edge spectroscopic feature as a surface biomarker [PDF]
, 2005 Astrophysics of Life conference proceedings, STScI May 2002, 9 ...
Seager, S., Ford, E. B.
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