Results 71 to 80 of about 178,941 (346)
Monitoring Pacific walrus coastal haulouts by satellite to estimate herd abundance and distribution
Wildlife Society Bulletin, EarlyView.We monitored Pacific walrus haulouts with drone and satellite imagery to derive new methods for estimating minimum population size. The largest herd observed during an 8‐year study period was on the coast of northeastern Russia at Cape Serdtse‐Kamen in autumn 2022 where the aggregation spanned over an area of 184,094 m2 with a mean density (and 90 ...
Anthony S. Fischbach +2 more
wiley +1 more source
Geomatics, Natural Hazards & Risk, 2019 The Datong basin is one of the complex geologic environments in China. Several faults are distributed in the basin, and a number of hidden faults have been discovered within the basin. Ground fissures (GFs) and land subsidence occur in this region.
Chengsheng Yang +5 more
doaj +1 more source
Distributed Aperture Coherence-synthetic Radar Technology
Leida xuebao, 2017 The distributed aperture coherence-synthetic radar could accomplish long-range and high-precision detection performance according to include multi-unit radars and energy synthesize in space.
Lu Yaobing, Gao Hongwei, Zhou Baoliang
doaj +1 more source
Human Attention as a Philosophical Problem: The Question, and the Nature of Questions
Metaphilosophy, EarlyView.Abstract Human attention has become a touchstone of widespread concern across the humanities, sciences, and broader culture in much of the world. The emergence of a new, heavily capitalized, and technologically sophisticated industry “commodifying” human attention (what has been called “human fracking”) has given rise to a transdisciplinary ...
D. Graham Burnett
wiley +1 more source
Theory and measure of certain image norms in SAR [PDF]
, 1984 The principal properties of synthetic aperture radar SAR imagery of point and distributed objects are summarized. Against this background, the response of a SAR (Synthetic Aperture Radar) to the moving surface of the sea is considered.
Raney, R. K.
core +1 more source
Plant Biology, EarlyView.This study demonstrates the potential of the Sentinel‐1 Dual Polarimetric Radar Vegetation Index, combined with climate variables and the Standardized Precipitation–Evapotranspiration Index, to effectively detect and monitor drought‐induced stress in temperate broadleaf deciduous forests.
B. Ranjit +3 more
wiley +1 more source
Remote SensingThis paper investigates the airborne synthetic aperture radar via outfield experiments based on carrier-free ultra-wideband signals with fifth-order Gaussian pulses with imaging using the backward projection algorithm. Typical blanket jamming is selected
Yue Yuan +4 more
doaj +1 more source
Parametric Sparse Representation and Its Applications to Radar Sensing
Leida xuebao, 2016 Sparse signal processing has been utilized to the area of radar sensing. Due to the presence of unknown factors such as the motion of the targets of interest and the error of the radar trajectory, a predesigned dictionary cannot provide the optimally ...
Li Gang, Xia Xiang-Gen
doaj +1 more source
Validating habitat suitability assessments with post‐translocation animal movement data
Restoration Ecology, EarlyView.Wildlife translocations are essential for restoring species to their native habitats, and species distribution models (SDMs) have proven useful for identifying suitable habitats to guide this process. Validating model predictions with data from individual's post‐translocation, however, is rare due to the frequent lack of monitoring data from ...
Ramiro D. Crego +7 more
wiley +1 more source
Battery Energy, Volume 5, Issue 1, January 2026.ABSTRACT Nitrogen‐doped carbide‐derived carbons (N‐CDCs) are promising materials for energy storage due to their tunable structure and chemistry. Here, we design a molecular architecture strategy to promote nitrogen incorporation and microstructural control during the synthesis of N‐CDCs.
Berta Pérez‐Román +8 more
wiley +1 more source