Results 131 to 140 of about 69,873 (301)
Shuttle/spacelab MMAP/electromagnetic environment experiment phase B definition study [PDF]
Progress made during the first five months of the Phase B definition study for the MMAP/Electromagnetic Environment Experiment (EEE) was described. An antenna/receiver assembly has been defined and sized for stowing in a three pallet bay area in the ...
Afifi, M. S. +3 more
core +1 more source
Software to Support Remote Sensing of River Discharge Based on Critical Flow Theory
River Research and Applications, EarlyView.ABSTRACT Water resource management requires accurate observations of streamflow but standard field methods for measuring river discharge (Q$$ Q $$) can be costly and hazardous for equipment and personnel. Remote sensing has become a viable alternative, but many image‐based techniques require field data for calibration, and depth and velocity can seldom
Carl J. Legleiter, Inhyeok Bae
wiley +1 more source
Unit Commitment With Frequency Stability Enhancement for an Isolated Power System
IEEE AccessThis paper presents an efficient mixed-integer linear programming approach to unit commitment (UC) in isolated power systems while maintaining frequency stability under loss of generation contingencies.
Jia-Jhang Wu +3 more
doaj +1 more source
Effects of roughness on the radar response to soil moisture of bare ground [PDF]
The radar response to soil moisture content was experimentally determined for three different bare fields with considerably different surface roughnesses at eight frequencies in the 2 to 8 GHz band and for Horizontal transmit-Horizontal receive (HH) and ...
Batlivala, P. P., Ulaby, F. T.
core +1 more source
River Research and Applications, EarlyView.ABSTRACT River infrastructures such as weirs, dams, inlet and outlet regulators often impair connectivity, leading to degradation and loss of key habitats for riverine fishes. This also holds true for golden perch (Macquaria ambigua Richardson), a migratory species in Australia's Murray–Darling Basin.
Josef Knott +5 more
wiley +1 more source
Designing effective frequency response patterns for flexible thermostatic loads [PDF]
, 2015 Strbac, G, Tindemans, SH, Trovato, V
core +1 more source
Engineering studies related to geodetic and oceanographic remote sensing using short pulse techniques [PDF]
For the Skylab S-193 radar altimeter, data processing flow charts and identification of calibration requirements and problem areas for defined S-193 altimeter experiments are presented.
Brown, G. S. +2 more
core +1 more source
DuckNet: an open‐source deep learning tool for waterfowl species identification in UAV imagery
Remote Sensing in Ecology and Conservation, EarlyView.Using drones with thermal‐RGB sensors and a deep learning model (RetinaNet with ResNet‐50), we surveyed non‐breeding waterfowl across restored wetlands in the Mississippi Alluvial Valley. Our model, DuckNet, achieved high accuracy and offers an open‐source, customizable tool for automated waterfowl detection to support conservation monitoring ...
Zack Loken +4 more
wiley +1 more source
Radar return from a continuous vegetation canopy [PDF]
The radar backscatter coefficient, sigma deg, of alfalfa was investigated as a function of both radar parameters and the physical characteristics of the alfalfa canopy.
Bush, T. F., Ulaby, F. T.
core +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.The endangered tri‐spine horseshoe crab (Tachypleus tridentatus), a “living fossil” crucial to coastal ecology and biomedical research, is experiencing severe population declines. Effective conservation requires efficient monitoring, which traditional methods cannot deliver at scale. We develop an integrated UAV deep learning framework tailored to this
Xiaohai Chen +7 more
wiley +1 more source