Results 111 to 120 of about 22,812,475 (283)

Autonomous Charging and Battery Swapping for Unmanned Aerial Vehicles: A Review

open access: yesAdvanced Intelligent Systems, EarlyView.
This review evaluates major autonomous charging and battery swapping methods for unmanned aerial vehicles (UAVs) against a single question: how close each is to sustained unattended operation. Rather than ranking them by charging performance, it identifies the limitation that most restricts each method, and briefly outlines the supporting technologies ...
Zelin Wu   +5 more
wiley   +1 more source

Shuttle Global Positioning (GPS) System design study [PDF]

open access: yes, 1980
Investigations of certain aspects and problems of the shuttle global positioning system GPS, are presented. Included are: test philosophy and test outline; development of a phase slope specification for the shuttle GPS antenna; an investigation of the ...
Nilsen, P., Huth, G. K.
core  

Improving access to new technologies: An experiment with Kenyan input sellers

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Agrodealers play a critical role in rural economies, selling essential inputs for agricultural production, stocking new products, and providing farmers with technical advice. However, uncertainty can discourage them from stocking newer, less familiar products, limiting the availability of innovative technologies and leading to market failures ...
Sarah W. Kariuki   +6 more
wiley   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording   +4 more
wiley   +1 more source

GPS Signal Simulation in Intermediate Frequency (IF) [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2012
The NAVSTAR Global Positioning System (GPS) is a satellite-based navigation and positioning system which includes a constellation of 32 satellites, remote control stations and its receivers and can be used for determination the geographical positions of ...
Shervin Amiri   +2 more
doaj  

Sitting in Many Camps—Innovative Approaches and Methods for First Nations‐Led Research Into Indigenous Peacebuilding

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT In 2021, a desktop review was conducted of published references to First Nations peoples' approaches to conflict and its management in Australia (Project Stage One), culminating in a report published in 2024. This article focuses on Project Stage Two, a complex, innovative research undertaking building on the findings of Stage One, and being ...
Helen Bishop   +3 more
wiley   +1 more source

General Practice Utilisation for Adults With Neurological Disability Who Are National Disability Insurance Scheme Participants in Australia

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT Most adults with neurological disability rely on general practitioners for managing and preventing health complications. This study analysed patterns of general practice service utilisation among National Disability Insurance Scheme (NDIS) participants with neurological disability and compared these with people who are not NDIS participants ...
Stacey Oliver   +8 more
wiley   +1 more source

Novel Interdigitated Electrode Conductometric Sensor for Rapid, Sensitive, and Selective Detection of cTnI Biomarkers in Saliva

open access: yesAdvanced NanoBiomed Research, EarlyView.
A miniaturized high resistivity silicon‐based interdigitated conductometric sensor detects cTnI at sub‐femtomolar levels with high selectivity. The device enables noninvasive testing using artificial and pooled human saliva in real‐time electrical readings. This portable biosensor offers a promising futuristic medical device providing new opportunities
Preethi Chidambaram   +8 more
wiley   +1 more source

Scale‐space image analysis for mapping spotted knapweed in grassland ecosystems

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise This study investigates the value of scale‐space representations of spatial features for the identification and mapping of invasive plants using high‐resolution multispectral imagery. Scale‐space representations combine the two‐dimensional spatial domain with a third dimension representing spatial scale, such that features can be ...
Shohreh Sahebi, David J. Hill
wiley   +1 more source

Exceptional preservation informs the paleobiology of tapinocephalid dinocephalians

open access: yesThe Anatomical Record, EarlyView.
Abstract The tapinocephalid dinocephalian Moschops is one of the most iconic taxa of the middle Permian, yet its paleobiology remains one of the least well‐known. Here, we address some aspects of paleoneurology and paleobiology of Moschops using CT scanning of four well preserved skulls from the upper Abrahamskraal Formation of South Africa. Two of the
Julien Benoit   +6 more
wiley   +1 more source

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