Results 131 to 140 of about 5,631 (303)
Application of the Hough transform for weld inspection underwater [PDF]
, 1995 The inspection of the nodal welds of off-shore steel structures is a necessary but hazardous task at present performed at regular intervals by divers. Automation of this task is an on-going research effort. One requirement for automation is the accurate location of the weld roots and it is this which is considered here.
openaire +1 more source
A novel approach for in situ benthic habitat characterization
Limnology and Oceanography: Methods, EarlyView.Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews +4 more
wiley +1 more source
Simulating Sonar Data for Cost-Effective Underwater Place Recognition
openThe increasing need to explore and monitor underwater environments has led underwater robotics to an impressive growth in recent decades; object detection, environmental mapping, underwater exploration, and inspection missions are tasks routinely ...
GHIOTTO, ANDREA
core
UNDERWATER IMAGE ENHANCEMENT AND DEHAZING FOR SUBSEA PIPELINE CORROSION INSPECTION
, 2017 The subsea pipeline corrosion in offshore oil and gas industry is considered as an important problem that further leads to cracks and leakages. Often, the human divers are involved to perform the visual inspection tasks for pipeline integrity management ...
KHAN, AMJAD KHAN
core
Underwater Nuclear Inspection Remotely Operated Drone
, 2021 The focus here is the visual inspection of submerged fuel elements within a nuclear reactor core. The underwater remotely controlled stable platform is a solution to improve the process at the Rhode Island Nuclear Science Center and Los Alamos National ...
Eddy, Pat +3 more
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Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing
Limnology and Oceanography: Methods, EarlyView.Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias +6 more
wiley +1 more source
Materials and Corrosion, EarlyView.A novel thick‐track electrical resistance probe with five sensing tracks was developed for offshore corrosion monitoring. The probe provides reliable, real‐time corrosion‐rate measurements in natural seawater. Corrosion‐rate trends showed strong agreement with weight‐loss coupon measurements.
Mohammad Hassanzadeh +5 more
wiley +1 more source
Soldagem subaquatica molhada com eletrodo tubular [PDF]
, 1995 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoSão identificadas as causas básicas da instabilidade do arco e interrupção do processo na soldagem subaquática molhada com eletrodo tubular, e propostas soluções para as ...
Andrade, Leone Peter Correia da Silva
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Quantitative Susceptibility Mapping of Kidney Stones: An Ex Vivo MRI Phantom Study
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To visualize and characterize the five most common kidney stone types based on their magnetic susceptibilities in MRI using QSM. Methods Three water‐based agar phantoms were constructed, containing a total of 53 ex vivo kidney stones of varying types and sizes.
Lion H. Mücke +8 more
wiley +1 more source
Drought stress modulates indirect defense via bottom‐up effects in tomato and wheat
Pest Management Science, EarlyView.Different water regimes can have a significant impact on plant morphology and defense pathways in tomato and wheat, triggering multiple olfactory choices in biocontrol agents of key insect pests. These findings could be used to implement biocontrol strategies within the IPM context under a changing climate scenario.
Mariangela Milordo +8 more
wiley +1 more source