Results 61 to 70 of about 44,738 (261)

Communications satellite technology [PDF]

open access: yes, 1964
Communications satellite technology - echo, relay, and syncom ...
Hedrich, A. L.
core   +1 more source

Isolation, Insularity and Resilience: A Review of the Geophysical, Socioeconomic, and Environmental Vulnerabilities of Gran Canaria and Lesvos Islands for Policy Interventions to Global Change

open access: yesSustainable Development, EarlyView.
ABSTRACT The dynamic nature of small islands being geographically isolated and their perceived connectedness with global networks complicates research attempts to draw general conclusions on whether insularity leads to marginalization or strengthens their resilience for sustainable development.
Toheeb Lekan Jolaosho   +2 more
wiley   +1 more source

Annual survival in a dynamic species: pronghorn survival patterns across their northern range

open access: yesWildlife Biology, EarlyView.
Quantifying variation in demographic patterns, such as survival and recruitment, is critical for understanding population dynamics and informing evidence‐based and adaptive wildlife management. In this study, we leverage an extensive dataset from over 1000 GPS collared pronghorn Antilocapra americana to provide the first large‐scale evaluation of ...
Molly C. McDevitt   +5 more
wiley   +1 more source

Enhanced Strategy on S-Band CCSDS Data Format and Packet Management for Geostationary Satellite Operation and Anomaly Detection

open access: yesIEEE Access
The Geostationary Korea Multi-Purpose Satellites 2A and 2B (GK2A and GK2B), developed by Korea Aerospace Research Institute (KARI), were launched, in 2018 and 2020, respectively.
Nayoung Lee   +3 more
doaj   +1 more source

Tracking Pacific bluefin tuna (Thunnus thynnus orientalis) in the northeastern Pacific with an automated algorithm that estimates latitude by matching sea-surface-temperature data from satellites with temperature data from tags on fish [PDF]

open access: yes, 2005
Data recovered from 11 popup satellite archival tags and 3 surgically implanted archival tags were used to analyze the movement patterns of juvenile northern bluefin tuna (Thunnus thynnus orientalis) in the eastern Pacific. The light sensors on archival
Domeier, Michael L   +4 more
core  

Monitoring wildlife using long‐endurance solar‐electric UAVs

open access: yesWildlife Biology, EarlyView.
This report discusses the effectiveness of using small solar‐electric UAV (uncrewed aerial vehicles) for aerial wildlife monitoring. We review four years of aerial wildlife monitoring missions using a 5.5‐m wingspan, solar‐electric UAV that was equipped with a gimballed IR/RGB camera.
Götz Bramesfeld   +3 more
wiley   +1 more source

A strategy for recovering continuous behavioral telemetry data from Pacific walruses

open access: yesWildlife Society Bulletin, 2016
Tracking animal behavior and movement with telemetry sensors can offer substantial insights required for conservation. Yet, the value of data collected by animal‐borne telemetry systems is limited by bandwidth constraints.
Anthony Fischbach, Chadwick V. Jay
doaj   +1 more source

Planck-LFI radiometers tuning [PDF]

open access: yes, 2009
"This paper is part of the Prelaunch status LFI papers published on JINST: http://www.iop.org/EJ/journal/-page=extra.proc5/jinst" This paper describes the Planck Low Frequency Instrument tuning activities performed through the ground test campaigns ...
A Gregorio   +59 more
core   +3 more sources

Micro‐habitat selection by boreal woodland caribou improves access to food

open access: yesWildlife Biology, EarlyView.
Bio‐logging sensors attached to radiotelemetry receivers have great potential to transform our understanding of the ecological, physiological, and energetic constraints that shape patterns of wildlife movement under field conditions. We used video camera collars to assess microhabitat selectivity by woodland caribou Rangifer tarandus in boreal forests ...
Ian D. Thompson   +8 more
wiley   +1 more source

Fault Detection Method of Luojia1-01 Satellite Attitude Control System Based on Supervised Local Linear Embedding

open access: yesIEEE Access, 2019
This paper is aimed at the telemetry data of Luojia1-01 satellite attitude control system, and carries out the research on high-dimensional data feature extraction and fault detection based on supervised local linear embedding (SLLE). Because the general
Zhi Qu   +7 more
doaj   +1 more source

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