Results 11 to 20 of about 1,812,452 (281)

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

Oil & 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, Georgiadis Apostolos, Brussee Niels, Coorn Ab, van der Linde Hilbert, Dietderich Jesse, Alpak Faruk Omer, Eriksen Daniel, Mooijer-van den Heuvel Miranda, Appel Matthias, Sorop Tibi, Wilson Ove Bjørn, Berg Steffen   +12 more
doaj   +1 more source

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

E3S 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

Frontiers 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, Horacio Florez, Jeroen C. Vink, Terence J. Wells, Fredrik Saaf, Carl P. A. Blom   +5 more
doaj   +1 more source

The Virtual Corrosion Engineer

Corrosion 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, Wouter Hamer, Joy Phophichitra, Valliappan Valliappan, Abitha Ramesh, Prathamesh Shenai, Nicholas Laycock   +6 more
doaj   +1 more source

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

Acta 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, José Miguel Castro Claros, Jhonny Antonio Hurtado Vásquez, Nicholas Mcphee, Oscar Armando Sánchez Arancibia, Mario Palacios Arancibia   +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

Geochemistry, 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, Christian Heine, Jimmy vanItterbeeck, Ilya Ostanin, Andrey Seregin, Michael Spaak, Tamara Morales, Tess Oude Essink   +7 more
doaj   +1 more source

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

Data-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, Christopher Thiele, Jeremy Vila, Nishank Saxena, Detlef Hohl   +4 more
doaj   +1 more source

CENÁRIOS PARA O SETOR DE TRANSPORTES NO BRASIL

Transportes, 1997
O Grupo Shell começou a utilizar a técnica de cenários em seu processo de planejamento no final dos anos 60. Isto foi feito depois de constatar que a velocidade de mudanças no meio ambiente tinha chegado a tal ponto que não permitiria mais o uso de ...
Goret P. Paulo, Carlos E. C. Montagna, Pedro Roquete, Alexandre P.Z. Carneiro, Maria Carolina Costa Guedes, Eliane Coutinho Costa Guedes, Elaine Coutinho Schulze, Ligia Barros das Chagas, Rafael Bergman   +8 more
doaj   +1 more source

Impedance response of asphaltene solutions: Effect of solvation

Fuel Communications, 2021
The present work uses a combination of X-ray diffraction (XRD) analysis and dielectric spectroscopy (DES) to study asphaltene aggregation and interactions between these aggregate and maltene phases, with the variations in solvency power of the maltenes ...
Chandrakant Bhogle, A.B. Pandit, Girish Rao, Dawid D’Melo, Subhendu Bhattacharya   +4 more
doaj   +1 more source

Estimation of Water Saturation in Shale Formation Using In Situ Multifrequency Dielectric Permittivity

Geofluids, 2022
Estimating water saturation via conventional logging tool such as resistivity cannot provide an accurate solution in a formation with low conductivity water and tight porosity. As an alternative, we employed a dielectric permittivity, which makes it easy
Yongchae Cho, Sean S. Dolan, Nishank Saxena, Vishal Das   +3 more
doaj   +1 more source