Results 41 to 50 of about 70,174 (264)

An Unsupervised Learning Method for Suppressing Ground Roll in Deep Pre-Stack Seismic Data Based on Wavelet Prior Information for Deep Learning in Seismic Data

open access: yesApplied Sciences
Ground roll noise suppression is a crucial step in processing deep pre-stack seismic data. Recently, supervised deep learning methods have gained popularity in this field due to their ability to adaptively learn and extract powerful features.
Jiarui Xia, Yongshou Dai
doaj   +1 more source

Seismic Noise Autocorrelations on Mars

open access: yesEarth and Space Science, 2021
Mars is the first extraterrestrial planet with seismometers (Seismic Experiment for Interior Structure, SEIS) deployed directly on its surface in the framework of the Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight)
Martin Schimmel   +16 more
doaj   +1 more source

Estimation and global control of noise reflections

open access: yes, 2009
In theory, active control could be used to reduce the unwanted noise reflections from surfaces such as a submarine hull or the walls of an anechoic room. In the recent years, a real-time algorithm has been developed to this effect at the Laboratoire de Mécanique et d'Acoustique: the noise scattered by the surface is estimated through linear filtering ...
Friot, Emmanuel, Gintz, Alexandre
openaire   +3 more sources

The stochastic reflection problem with multiplicative noise [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2012
This work is concerned with existence and uniqueness of solutions to the reflection problem for linear parabolic equation with multiplicative Gaussian noise.
openaire   +3 more sources

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

A method to evaluate the aeroacoustic bogie noise of Shinkansen high-speed trains by considering the acoustic field

open access: yesNihon Kikai Gakkai ronbunshu, 2018
The reduction of the aeroacoustic bogie noise that is generated by the Shinkansen high-speed trains travelling faster than 300 km/h is an important environmental issue.
Nobuhiro YAMAZAKI   +2 more
doaj   +1 more source

REPROCESSING OF REGIONAL 2D MARINE SEISMIC DATA OF PART OF TARANAKI BASIN, NEW ZEALAND USING LATEST PROCESSING TECHNIQUES

open access: yesGeoScience Engineering, 2020
This study employed the use of various newly developed seismic data processing techniques, which had not been available as at the time (1986) of acquisition of the regional 2D marine seismic data (TRV 434) of part of Taranaki Basin, New Zealand, to ...
Olawale Olakunle OSINOWO
doaj   +1 more source

Saturated Reflection Detection for Reflection Removal Based on Convolutional Neural Network

open access: yesIEEE Access, 2022
Single image reflection removal is a technique that removes undesirable reflections, which occur due to glass, from images. Various methods of reflection removal have been proposed, but unfortunately, they usually fail to remove reflections particularly ...
Taichi Yoshida   +3 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

open access: yesAdvanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati   +11 more
wiley   +1 more source

A methodological framework for specular return removal from photon-counting LiDAR data

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
The Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) data may contain abundant noise photons induced by specular reflection, which make the signal photon detection and surface elevation extraction challenging, especially on flat surfaces with high ...
Zijia Wang   +5 more
doaj   +1 more source

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