Results 31 to 40 of about 137 (111)

Data collection in IoT networks: Architecture, solutions, protocols and challenges

open access: yesIET Wireless Sensor Systems, Volume 14, Issue 4, Page 85-110, August 2024.
Current IoT data collection techniques are categorised and a comparative evaluation of these methods is performed based on the topics analysed and elaborated by the authors. In addition, a comprehensive analysis of recent advances in IoT data collection is provided, highlighting different data types and sources, transmission protocols from connected ...
Ado Adamou Abba Ari   +6 more
wiley   +1 more source

A wireless, remotely operable and easily customizable robotic flower system

open access: yesMethods in Ecology and Evolution, Volume 15, Issue 8, Page 1312-1324, August 2024.
Abstract Understanding the complex interactions between external and internal factors that influence pollinator foraging behaviour is essential to understand ecosystem functioning, design agricultural practices or develop effective conservation strategies. However, it remains challenging to collect large and reliable data sets with reasonable personnel
Kamiel Debeuckelaere   +5 more
wiley   +1 more source

Utilisation of off-river habitats by lowland river fishes [PDF]

open access: yes, 2006
This study assessed the importance for fish of lateral connectivity of river side-channels to the River Frome, a lowland chalk. stream in Southern England.
Knight, Carolyn M., Knight, Carolyn M
core  

Evaluating harvest incentives for suppressing a socially‐valued, but ecologically‐detrimental, invasive fish predator

open access: yesFisheries Management and Ecology, Volume 31, Issue 4, August 2024.
Abstract The legacy of intentional freshwater fish introductions across the western United States has fostered social tensions over the control of nonnative species in some contexts. Overcoming tensions and implementing effective control programs is important for mitigating impacts to native species.
Adam G. Hansen   +3 more
wiley   +1 more source

Pollinator‐assisted plant phenotyping, selection, and breeding for crop resilience to abiotic stresses

open access: yesThe Plant Journal, Volume 119, Issue 1, Page 56-64, July 2024.
SUMMARY Food security is threatened by climate change, with heat and drought being the main stresses affecting crop physiology and ecosystem services, such as plant–pollinator interactions. We hypothesize that tracking and ranking pollinators' preferences for flowers under environmental pressure could be used as a marker of plant quality for ...
Francisco Pérez‐Alfocea   +6 more
wiley   +1 more source

Autonomous aerial robotics for package delivery: A technical review

open access: yesJournal of Field Robotics, Volume 41, Issue 1, Page 3-49, January 2024.
Abstract Small unmanned aerial vehicles (UAVs) have gained significant interest in the last decade. More specifically these vehicles have the capacity to impact package delivery logistics in a disruptive way. This paper reviews research problems and state‐of‐the‐art solutions that facilitate package delivery.
Jack Saunders, Sajad Saeedi, Wenbin Li
wiley   +1 more source

Design And Practical Implementation Of Harmonic-Transponder Sensors

open access: yes, 2019
Harmonic radar is a nonlinear detection technology that transmits and receives radio-frequency (RF) signals at orthogonal frequencies, so as to suppress the undesired clutters, echoes and electromagnetic interreferences due to multipath scattering.
Alkhaldi, Nasser
core  

Pinnan mukaiset ja monikaistaiset antennit tulevaisuuden matkaviestimiin ja langattomiin antureihin

open access: yes, 2017
Desired performance of handsets and wireless sensors used in communications systems of current and future generations places significant challenges also on designing the antennas used in these devices. The antennas must adhere to requirements of existing
Rasilainen, Kimmo
core   +1 more source

Edistysaskeleita sähköisesti pienten antennien suunnittelussa ja analysoinnissa

open access: yes, 2018
The increasing number of frequency bands used in wireless communications results in added challenges for antenna designers. This challenge is further increased by the limited volume available for antennas in modern wireless devices.
Hannula, Jari-Matti
core   +1 more source

American Alligator Nesting Ecology in Impounded Marsh Habitat, Louisiana.

open access: yes, 2000
The goal was to monitor a large number of female alligators over a 3-year period to obtain information on alligator nesting ecology. This dissertation, although designed to estimate annual nesting rates, provides additional meaningful information on ...
Reagan, Steven Richard
core   +1 more source

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