Results 101 to 110 of about 873,936 (270)

Recent advances in organic broad‐spectrum photodetection materials and devices

open access: yesInfoMat, EarlyView.
Graphical Abstract This review systematically outlines the evolution of organic photodetectors from fullerene‐based to advanced non‐fullerene acceptors, highlighting how molecular engineering (e.g., D–A, quinoidal, and A‐D‐A′‐D‐A architectures) extends spectral response into the short‐wave infrared region.
Yilin Zhao   +3 more
wiley   +1 more source

Evaluation of Selected Modulation Techniques in Underwater Multipath Channel

open access: yesIEEE Access
There is a growing interest in the use of Autonomous Underwater Vehicles (AUVs) and Underwater Sensor Networks (USNs) for scientific, military, and industrial applications, leading to the development of wireless underwater communications.
Agnieszka Czapiewska   +4 more
doaj   +1 more source

HW/SW Platform for Measurement and Evaluation of Ultrasonic Underwater Communications. [PDF]

open access: yesSensors (Basel), 2022
Fernández-Plazaola U   +4 more
europepmc   +1 more source

Growing trees on farms: Navigating the goals and values of farmers

open access: yesPeople and Nature, EarlyView.
Abstract Agricultural landscapes represent critical contexts for advancing policy objectives related to tree cover expansion. This paper explores how farmers' values influence their willingness or ability to grow trees on farms. Research is based on 49 interviews and two focus groups with farmers in England and draws on two social science research ...
Stephen McConnachie   +7 more
wiley   +1 more source

Application of time reversal technique in shallow water environment

open access: yesArchives of Acoustics, 2014
Underwater acoustic communications in shallow water environment is a challenging problem due to the intersymbol interference caused by time-varying dispersive multipath channel.
Sławomir Jastrzębski
doaj  

AUV/ASC cooperative survey [PDF]

open access: yes, 2016
In this paper we describe a solution to perform autonomous surveys taking advantage of a cooperative multivehicle setup. In the proposed configuration, an ASC provides –through an USBL- absolute positioning and communications to an AUV.
Carreras, Marc   +2 more
core  

Adaptive Underwater Acoustic Communications [PDF]

open access: yes, 2010
Underwater wireless networks consist of mobile and static nodes, which usually communicate using the acoustic channel since radio transmissions attenuate rapidly and optical communication is only suitable for short distances. The underwater acoustic channel is plagued with issues of high transmission power requirements, rapidly changing channel ...
Sehgal, Anuj, Schönwälder, Jürgen
openaire   +1 more source

Enabling Under Ice Glider Operations: A Backseat Driver Approach

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang   +12 more
wiley   +1 more source

From 0D to 3D liquid crystal elastomers architectures: Fabrications and applications

open access: yesResponsive Materials, EarlyView.
This review presents a dimension‐oriented overview of liquid crystal elastomers (LCEs), highlighting their molecular alignment, fabrication strategies, and programmable deformations from 0D particles to 3D architectures. Emphasis is placed on how dimensionality guides design principles, enables diverse actuation modes, and bridges fundamental ...
Mingxuan Liu   +8 more
wiley   +1 more source

Beyond 5G and Non‐terrestrial Network (NTN) Integrated Architecture: Access Challenges for Expanding Artificial Intelligence of Things (AIoT)

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley   +1 more source

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