Results 51 to 60 of about 1,548 (169)

Ash plume properties retrieved from infrared images: a forward and inverse modeling approach

, 2014
We present a coupled fluid-dynamic and electromagnetic model for volcanic ash plumes. In a forward approach, the model is able to simulate the plume dynamics from prescribed input flow conditions and generate the corresponding synthetic thermal infrared (
Cerminara, Matteo, Harris, Andrew J. L., Ongaro, Tomaso Esposti, Valade, Sébastien   +3 more
core   +3 more sources

Similarities and differences in the historical records of lava dome-building volcanoes: implications for understanding magmatic processes and eruption forecasting [PDF]

, 2016
A key question for volcanic hazard assessment is the extent to which information can be exchanged between volcanoes. This question is particularly pertinent to hazard forecasting for dome-building volcanoes, where effusive activity may persist for years ...
Almeev, Anderson, Andreastuti, Andres, Andres, Annen, Arellano, Asch, Aspinall, Aspinall, Aspinall, Aspinall, Athanasopoulos, Atlas, Auker, Barclay, Barclay, Barker, Barmin, Beauducel, Bebbington, Belousov, Belousov, Belousov, Belousov, Bernardo, Best, Biggs, Biggs, Blundy, Blundy, Blundy, Bogoyavlenskaya, Borgia, Borisova, Brennan, Browne, Budi-Santoso, Bull, Bullard, Cabral-Cano, Calder, Caricchi, Carn, Carn, Carn, Casadevall, Casadevall, Casertano, Cashman, Cashman, Cashman, Cashman, Cashman, Cashman, Cashman, Cañón-Tapia, Cervelli, Chaussard, Chouet, Chouet, Christopher, Christopher, Christopher, Claiborne, Cole, Coles, Connolly, Coombs, Coombs, Cooper, Costa, Couch, Crummy, De la Cruz-Reyna, Delgado-Granados, Deligne, Deruelle, DeShon, Diefenbach, Dirksen, Divoux, Dosseto, Doukas, Ebmeier, Edmonds, Edmonds, Edmonds, Elsworth, Engberg, Fichaut, Fichaut, Fischer, G. Wadge, Galle, Gardeweg, Gelman, Gerlach, Gerlach, Gertisser, Geschwind, Giggenbach, Girona, Girona, Glicken, Goff, González, Gorbach, Gorelchik, Gorshkov, Gottsmann, Gourgaud, Grapenthin, Grapenthin, Grutter, Hammer, Harris, Harris, Hautmann, Henney, Hildreth, Hincks, Hirabayashi, Hobbs, Hone, Humaida, Humphreys, Humphreys, Humphreys, Japan Meteorological Agency, Jaquet, Jaupart, Jaupart, K.V. Cashman, Kienle, Kilburn, Kohno, Korzhinsky, Koulakov, Lacroix, Larsen, Lavallée, Le Pennec, Lee, Lesne, Lipman, Lisowski, Lopez, Luhr, Luhr, Luhr, Mader, Major, Manga, Marsh, Martel, Martel, Marzocchi, Mastin, Mather, Matthews, Matthews, Matthews, Mattioli, McGee, McNutt, Melnik, Menard, Mercalli, Michaut, Miller, Miller, Miller, Molina, Moore, Mora, Moran, Moran, Moran, Murphy, Musumeci, Métrich, Nakada, Nakada, Nakamura, Neave, Neri, Neuberg, Newhall, Newhall, Newhall, Nichols, Nishi, Nye, Núñez-Cornú, Odbert, Odbert, Ogburn, Ogburn, Oppenheimer, Ozerov, Pallister, Pallister, Pallister, Perret, Petrosino, Phillipson, Pinel, Pinel, Pinel, Plail, Platt, Power, Power, Power, Pritchard, Pyle, R.S.J. Sparks, Ratdomopurbo, Ratdomopurbo, Reubi, Ripepe, Rittmann, Roberge, Robin, Rodríguez, Roman, Roman, Rose, Rose, Rose, Rose, Rutherford, Samaniego, Sandri, Savov, Scandone, Scandone, Schilling, Scott, Scott, Scott, Sernageomin, Shcherbakov, Sheldrake, Shepherd, Shinohara, Sides, Siebert, Siswowidjoyo, Smith, Smith, Sobradelo, Sobradelo, Solano, Sparks, Sparks, Sparks, Sparks, Sparks, Spiegelhalter, Stasiuk, Steffke, Stith, Straub, Surono, Swanson, Swanson, Swanson, Swanson, Symonds, Szakács, Szakács, T.E. Sheldrake, Tanguy, Tanguy, Taran, Tarasewicz, Thelan, Toramaru, Troll, Turner, Ui, Umakoshi, USGS, van Manen, Varley, Varley, Voight, Voight, Voight, Volpe, W.P. Aspinall, Wadge, Wadge, Wadge, Wallace, Wallace, Wallace, Walter, Watts, Webster, Werner, West, Whelley, White, Witter, Wolf, Wright, Yokoyama, Young, Zellmer, Zellmer, Zharinov, Zobin, Zobin   +315 more
core   +3 more sources

Numerical Analysis of Convective Heat Transfer in Quenching Treatments of Boron Steel under Different Configurations of Immersed Water Jets and Its Effects on Microstructure

Fluids
In this work, the effects of jet impact angle and water flow on the heat-transfer coefficient in boron steel probes were analyzed. Angles of 90°, 75° and 60° were used with stirring flows of 33 l·min−1, 25 l·min−1, 13 l·min−1 and 6 l·min−1.
Raúl Alberto Tinajero-Álvarez, Constantin Alberto Hernández-Bocanegra, José Ángel Ramos-Banderas, Nancy Margarita López-Granados, Brandon Farrera-Buenrostro, Enrique Torres-Alonso, Gildardo Solorio-Díaz   +6 more
doaj   +1 more source

An Active Power Filter Based on a Three-Level Inverter and 3D-SVPWM for Selective Harmonic and Reactive Compensation

Energies, 2017
Active Power Filters (APFs) have been used for reducing waveform distortion and improving power quality. However, this function can be improved by means of a selective harmonic compensation.
José Luis Monroy-Morales, David Campos-Gaona, Máximo Hernández-Ángeles, Rafael Peña-Alzola, José Leonardo Guardado-Zavala   +4 more
doaj   +1 more source

Effect of CoCrMo Addition on Ti6Al4V/xCoCrMo Biomedical Composites Processed by Powder Metallurgy

Metals, 2021
A detailed experimental and numerical investigation was performed on a Ti6Al4V/xCoCrMo biomedical composite for bone implant applications. The aim was to understand the effect generated by the addition of different volume fractions of CoCrMo particles on
Elena Mihalcea, Luis Olmos, Héctor Vergara-Hernández, Omar Jimenez, Jorge Chávez, Dante Arteaga   +5 more
doaj   +1 more source

The evolution of volcanic plume morphology in short-lived eruptions [PDF]

, 2015
The details of volcanic plume source conditions or internal structure cannot readily be revealed by simple visual images or other existing remote imaging techniques.
Adrian, R. J., Chojnicki, K. N., Clarke, Amanda B, Phillips, Jeremy C   +3 more
core   +1 more source

Geochemistry and evolution of the Santiaguito volcanic dome complex, Guatemala

Journal of Volcanology and Geothermal Research, 2013
Abstract One of the longest continuous periods of dome-forming activity on record is the ongoing eruption of Santiaguito, Guatemala. Dome-building began in 1922, within the crater formed during the cataclysmic 1902 eruption of Santa Maria, and continues today.
Scott, J, Pyle, D, Mather, T, Rose, W
openaire   +1 more source

Increasing Bending Strength of Porcelain Stoneware via Pseudoboehmite Additions

Journal of Ceramics, Volume 2014, Issue 1, 2014., 2014
Pseudoboehmite nanoparticles synthesized through the desulfation of Al2(SO4)3 were used to investigate the reinforcement of commercial porcelain stoneware. Fractured specimens investigated by SEM suggest that the added pseudoboehmite precursor generated a nanometric primary mullite phase dispersed in the porcelain glassy phase that limited and stopped ...
Omar Aguilar-García, Rafael Lara-Hernández, Azucena Arellano-Lara, José L. Gil-Vázquez, Jaime Aguilar-García, Keizo Uematsu   +5 more
wiley   +1 more source

Transient-State Fault Detection System Based on Principal Component Analysis for Distillation Columns

Mathematics
This paper presents the design of a fault detection system (FDD) based on principal component analysis (PCA) to detect faults in the transient state of distillation processes.
Gregorio Moreno-Sotelo, Adriana del Carmen Téllez-Anguiano, Mario Heras-Cervantes, Ricardo Martínez-Parrales, Gerardo Marx Chávez-Campos   +4 more
doaj   +1 more source

Analysis and Comparison of Fuzzy Models and Observers for DC-DC Converters Applied to a Distillation Column Heating Actuator

Mathematical and Computational Applications, 2020
In this paper, as an introduction, the nonlinear model of a distillation column is presented in order to understand the fundamental paper that the column heating actuator has in the distillation process dynamics as well as in the quality and safety of ...
Mario Heras-Cervantes, Adriana del Carmen Téllez-Anguiano, Juan Anzurez-Marín, Elisa Espinosa-Juárez   +3 more
doaj   +1 more source