Results 91 to 100 of about 1,913,452 (223)

Drew Rothrock's Fundamental Contributions to Arctic Science

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract David Andrew (Drew) Rothrock III lived during a period of vigorous scientific research in the Earth Sciences, from the International Geophysical Year to the era of satellites and high‐speed computer modeling. Drew made fundamental contributions to Arctic science, helping to lay the theoretical foundations for modeling the movement and ...
Harry L. Stern   +4 more
wiley   +1 more source

Advances in the Design and Functionality of a Compact Multi‐Reflecting Time‐of‐Flight Mass Spectrometer

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 22, 30 November 2026.
ABSTRACT Rationale High‐resolution mass spectrometry is routinely used for the analysis of complex samples in pharmaceutical, environmental, and omics related studies. Such applications demand instrumentation to be capable of combining sub‐ppm mass accuracy, high resolving power, rapid full m/z range acquisition over a wide dynamic range.
Jason Wildgoose   +7 more
wiley   +1 more source

The use of active sonar to study cetaceans [PDF]

open access: yes, 2012
Cetacean species face serious challenges worldwide due to the increasing noise pollution brought to their environment by human activities such as seismic exploration. Regulation of these activities is vaguely defined and uncoordinated.
Bernasconi, Matteo
core   +2 more sources

Imaging and counting of targets with a high resolution multibeam sonar [PDF]

open access: yes, 2010
Includes abstract.Includes bibliographical references (p. 113-116).This dissertation pertains to the development of an imaging and counting system for a high resolution multibeam sonar.
Mussai, Kushwant
core   +1 more source

Self-Training Can Reduce Detection False Alarm Rate of High-Resolution Imaging Sonar

open access: yesApplied Sciences
Imaging sonar is a primary means of underwater detection, but it faces challenges of high false alarm rates in sonar image target detection due to factors such as reverberation, noise, and resolution.
Jingqi Han   +5 more
doaj   +1 more source

Design and Implementation of an Automated Wheelchair With Voice and Gesture Control, Obstacle Avoidance, and Real‐Time Location Sharing

open access: yesEngineering Reports, Volume 8, Issue 11, November 2026.
This work presents a standalone smart wheelchair featuring dual voice‐ and gesture‐based control, obstacle avoidance, and real‐time location sharing. The system achieves 100% gesture accuracy and 94% voice accuracy, enabling safe, independent mobility for users with severe physical impairments and providing emergency support without smartphone ...
Md Nurul Huda Rifat   +2 more
wiley   +1 more source

Three-Dimensional Reconstruction Method of Submarine Cables Based on High-Speed ROV Cruising with Multibeam Imaging Sonar

open access: yes水下无人系统学报
Submarine cables, serving as the critical conduits for power transmission for offshore wind farms, are pivotal to the system’s stability. However, due to their complex marine environments, currently, conventional three-dimensional(3D) reconstruction ...
Haining XU   +6 more
doaj   +1 more source

Widespread On‐Fault Geologic Evidence for Variable Mode Coseismic Slip to the Trench in Cascadia

open access: yesAGU Advances, Volume 7, Issue 8, November 2026.
Abstract Investigating the geologic record of near‐trench coseismic strain release is critical for estimating the slip distribution and tsunamigenic potential of future large subduction zone earthquakes. However, the style and extent of upper plate coseismic deformation offshore in subduction zones is poorly constrained.
J. T. Watt   +11 more
wiley   +1 more source

Behavioural Diversity of Fishes: Concepts, Drivers and Its Role in Conservation and Management

open access: yesFish and Fisheries, Volume 27, Issue 6, Page 1245-1268, November 2026.
ABSTRACT Human activity has altered nearly all ecosystems on Earth, contributing to substantial biodiversity loss across taxonomic, genetic and functional dimensions, from the intraspecific to the ecosystem scale. Yet some components of biodiversity remain hidden or underappreciated, including behavioural diversity.
Marie Prchalová   +25 more
wiley   +1 more source

Quantifying Deep Ocean Methane Along the Central Chilean Margin

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Cold seeps are dynamic seafloor environments that provide conduits for methane (CH4) to be transferred from marine sediments to the global ocean and, in shallow settings, the atmosphere. These seeps are ubiquitous along continental margins yet their spatial extent and impact on the marine carbon cycle are poorly constrained.
Scott T. Wieman   +10 more
wiley   +1 more source

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