Results 21 to 30 of about 664,049 (296)

PENGHILANGAN SWELL NOISE DAN LINIER NOISE PADA DATA SEISMIK 2D MARINE HIGH RESOLUTION PADA LINTASAN “AF” MENGGUNAKAN METODE SWNA, F-K FILTER DAN TAU-P TRANSFORM

open access: yesJGE, 2020
Research have been done about noise removal caused by environment (swell noise) and linear noise on high frequency 2D seismic data on line “AF” using swell noise attenuation (SWNA) method, f-k filter and tau-p transformation.
Achmad Subari   +2 more
doaj   +1 more source

Efficient and simple simulation method for matching stress‐permeability test results

open access: yesEnergy Science & Engineering, 2022
In the process of pressure‐relief mining in high gas coal seams and hydraulic fracturing of deep coalbed methane, a large number of irregular fractures are generated inside the coal, which becomes the main path for gas migration.
Tong Zhang, Cun Zhang, Ziyu Song
doaj   +1 more source

The SAMI Galaxy Survey: Revising the Fraction of Slow Rotators in IFS Galaxy Surveys [PDF]

open access: yes, 2017
The fraction of galaxies supported by internal rotation compared to galaxies stabilized by internal pressure provides a strong constraint on galaxy formation models.
Bland-Hawthorn, Joss   +17 more
core   +3 more sources

Communication Aspects of Visible Light Positioning (VLP) Systems Using a Quadrature Angular Diversity Aperture (QADA) Receiver

open access: yesSensors, 2020
Visible light positioning (VLP) is a promising indoor localization system in which light emitting diode (LED) luminaires are used as positioning beacons.
Mohammed M. A. Mohammed   +4 more
doaj   +1 more source

Deep Learning-Based Electric Field Enhancement Imaging Method for Brain Stroke

open access: yesSensors
In clinical settings, computed tomography (CT), magnetic resonance imaging (MRI), or positron emission tomography (PET) are commonly employed in brain imaging to assist clinicians in determining the type of stroke in patients.
Tong Zuo   +6 more
doaj   +1 more source

Sporogenesis in Physcomitrium patens: Intergenerational collaboration and the development of the spore wall and aperture

open access: yesFrontiers in Cell and Developmental Biology, 2023
Although the evolution of spores was critical to the diversification of plants on land, sporogenesis is incompletely characterized for model plants such as Physcomitrium patens. In this study, the complete process of P.
Karen S. Renzaglia   +2 more
doaj   +1 more source

Wide field interferometric imaging with single-mode fibers [PDF]

open access: yes, 2002
Classical single-mode fiber interferometers, using one fiber per aperture, have very limited imaging capabilities and small field of view. Observations of extended sources (resolved by one aperture) cannot be fully corrected for wavefront aberrations ...
Berger   +12 more
core   +2 more sources

Cultural adaptation of the DESSA high-school student self report for chinese adolescents

open access: yesSocial and Emotional Learning: Research, Practice, and Policy
Social and emotional skills play a pivotal role in an adolescent’s healthy development. In recent years, there has been a greater focus on the international expansion of social and emotional learning (SEL) efforts to support students’ well-being.
Evelyn S. Johnson   +4 more
doaj   +1 more source

THE METHOD OF CALCULATION OF COEFFICIENTS OF THE PHASE ABERRATIONS OF AXIALLY ASYMMETRIC DUAL REFLECTOR ANTENNAS

open access: yesНаучный вестник МГТУ ГА, 2019
Aerodrome-enroute surveillance radar systems (ARSR) of civil aviation are designed for detection of aerial objects and determination of their range and movement parameters.
B. N. Laskin, E. A. Bolelov
doaj   +1 more source

A Real-Time Adaptive Station Beamforming Strategy for Next Generation Phased Array Radio Telescopes

open access: yesSensors
The next generation phased array radio telescopes, such as the Square Kilometre Array (SKA) low frequency aperture array, suffer from RF interference (RFI) because of the large field of view of antenna element.
Guoliang Peng   +4 more
doaj   +1 more source

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