Results 31 to 40 of about 1,548 (169)
Journal of Materials Research and Technology, 2021 In this research work, the optimal parameters of post welding heat treatment (PWHT) for 12Cr–1Mo Steel in the welding condition are determined. The PWHT aims to decrease δ-ferrite percentage in the interface of the heat-affected zone (HAZ) and partially ...
N. Alcantar-Mondragón +4 more
doaj +1 more source
Metals, 2019 In this study the effects of the depth of immersion of the Submerged Entry Nozzles (SEN) on the fluid-dynamic structure, oscillations of the free surface and opening of the slag layer, in a continuous casting mold for conventional slab of steel were ...
F. Saldaña-Salas +4 more
doaj +1 more source
Explosive Dome Eruptions Modulated by Periodic Gas-Driven Inflation [PDF]
, 2014 Volcan Santiaguito (Guatemala) “breathes” with extraordinary regularity as the edifice\u27s conduit system accumulates free gas, which periodically vents to the atmosphere.
B. J. Andrews +27 more
core +3 more sources
Design of a Three-Phase Shell-Type Distribution Transformer Using Evolutionary Algorithms
Energies, 2023 In this paper, three metaheuristic optimization algorithms: genetic algorithm (GA), particle swarm optimization (PSO), and differential evolution (DE) are compared in terms of minimizing the total owning cost (TOC) of the active part of a three-phase ...
Juan Carlos Olivares-Galvan +4 more
doaj +1 more source
Emplacement of the Rocche Rosse rhyolite lava flow (Lipari, Aeolian Islands) [PDF]
, 2018 The authors acknowledge Airbus Defence and Space for providing satellite imagery, financial support from Keele University and fieldwork grants from the Mineralogical Society of Great Britain and Ireland and the Volcanic and Magmatic Studies Group.
Bullock, Liam A +2 more
core +2 more sources
The magmatic plumbing system beneath Santiaguito Volcano, Guatemala
Journal of Volcanology and Geothermal Research, 2012 Abstract The silicic dome complex of Santiaguito, Guatemala, has exhibited continuous extrusive activity for 90 years. Despite its longevity, remarkably little is known about the magmatic plumbing system beneath Santiaguito. Here, we use petrological analyses of lava samples to define this plumbing system, from storage in the lower to mid-crust ...
Scott, J +4 more
openaire +2 more sources
Revista Iberoamericana de Automática e Informática Industrial RIAI, 2015 Resumen: En este trabajo se presenta la implementación y la validación experimental de un observador de alta ganancia reconfigurable para la estimación de la composición molar y de la temperatura en una columna de destilación con una mezcla binaria.
M. Heras Cervantes +4 more
doaj +1 more source
Estimation of the Equivalent Circuit Parameters in Transformers Using Evolutionary Algorithms
Mathematical and Computational Applications, 2023 The conventional methods of parameter estimation in transformers, such as the open-circuit and short-circuit tests, are not always available, especially when the transformer is already in operation and its disconnection is impossible.
Hector Ascencion-Mestiza +5 more
doaj +1 more source
Infrasound from Volcanic Rockfalls [PDF]
, 2015 Proximal infrasound arrays can robustly track rapidly moving gravity-driven mass wasting, which occurs commonly at erupting volcanoes. This study reports on detection, localization, and quantification of frequent small rockfalls and infrequent ...
Johnson, Jeffrey B., Ronan, Timothy J.
core +2 more sources
A New Inclusive Volcanic Risk Ranking, Part 2: Application to Latin America
Frontiers in Earth Science, 2021 Volcanic Risk Ranking (VRR) methods have been developed worldwide as a way to hierarchize the volcanic systems and help target strategies for risk reduction.
Letícia Freitas Guimarães +3 more
doaj +1 more source