Results 1 to 10 of about 1,801,142 (276)

Capillarity and phase-mobility of a hydrocarbon gas–liquid system

open access: yesOil & Gas Science and Technology, 2021
When oil fields fall during their lifetime below the bubble point gas comes out of solution. The key questions are at which saturation the gas becomes mobile (“critical gas saturation”) and what the gas mobility is, because mobile gas reduces the ...
Gao Ying   +12 more
doaj   +1 more source

Hydration behavior by X-ray diffraction profile fitting of smectite-bearing minerals [PDF]

open access: yesE3S Web of Conferences, 2020
Clay mineral hydration and dehydration processes are reversible at temperatures
Day-Stirrat Ruarri J., Bryndzia L. Taras
doaj   +1 more source

Performance Analysis of Trust Region Subproblem Solvers for Limited-Memory Distributed BFGS Optimization Method

open access: yesFrontiers in Applied Mathematics and Statistics, 2021
The limited-memory Broyden–Fletcher–Goldfarb–Shanno (L-BFGS) optimization method performs very efficiently for large-scale problems. A trust region search method generally performs more efficiently and robustly than a line search method, especially when ...
Guohua Gao   +5 more
doaj   +1 more source

Cosmic shells [PDF]

open access: yesPhysical Review D, 2002
When a potential for a scalar field has two local minima there arise spherical shell-type solutions of the classical field equations due to gravitational attraction. We establish such solutions numerically in a space which is asymptotically de Sitter.
Hosotani, Y.   +3 more
openaire   +2 more sources

Black shells and naked shells [PDF]

open access: yesInternational Journal of Geometric Methods in Modern Physics, 2021
In this paper, we study the collapse of a thin dust shell from the point of view of the horizon dynamics. We identify the critical surfaces at which time and space coordinates interchange their roles and investigate their properties by using the formalism of trapped surfaces.
Walter Pulido, Hernando Quevedo
openaire   +2 more sources

The Virtual Corrosion Engineer

open access: yesCorrosion and Materials Degradation, 2021
The conventional corrosion management process consists of defining the expected process conditions, identifying potential corrosion threats, and estimating their likely rate, then using that information to develop mitigation plans and inspection ...
Aarthi Thyagarajan   +6 more
doaj   +1 more source

Registros del oso andino Tremarctos ornatus (Carnivora: Ursidae) en el Subandino Sur de Bolivia

open access: yesActa Zoológica Lilloana, 2021
En la presente nota se reportan cuatro registros documentados mediante fotografías de la presencia del oso andino (Tremarctos ornatus) en el Subandino Sur de Bolivia dentro los límites de las Unidades de Conservación del Oso Andino (UCO) Carrasco-Amboró-
Efraín Miguel Peñaranda Barrios   +5 more
doaj   +1 more source

A New Model for the Evolution of Oceanic Transform Faults Based on 3D Broadband Seismic Observations From São Tomé and Príncipe in the Eastern Gulf of Guinea

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Oceanic Transform Faults are one of manifestations of the three major plate boundaries and a key tectonic feature of oceanic crust. They are broadly considered to accommodate strike‐slip displacement along simple vertical faults and to be largely without
Myron F. H. Thomas   +7 more
doaj   +1 more source

Content-based image retrieval for industrial material images with deep learning and encoded physical properties

open access: yesData-Centric Engineering, 2023
Industrial materials images are an important application domain for content-based image retrieval. Users need to quickly search databases for images that exhibit similar appearance, properties, and/or features to reduce analysis turnaround time and cost.
Myung Seok Shim   +4 more
doaj   +1 more source

Fragmentation of Shells [PDF]

open access: yesPhysical Review Letters, 2004
4 pages in revtex format, 5 figures are ...
Wittel, Falk   +3 more
openaire   +3 more sources

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