Search Results - "Tribaldos, V."

A tale of two domes: Neogene to recent volcanism and dynamic uplift of northeast Brazil and southwest Africa by Klöcking, M., Hoggard, M.J., Rodríguez Tribaldos, V., Richards, F.D., Guimarães, A.R., Maclennan, J., White, N.J.

“…•Stratigraphy, drainage, volcanism, gravity and seismic structure imply dynamic support.•Volcanic chemistry and seismic velocities record <50°C asthenospheric…”
Get full text

FLIPEC, an ideal MHD free-boundary axisymmetric equilibrium solver in the presence of macroscopic flows by F.-Torija Daza, G., Reynolds-Barredo, J.M., Sanchez, R., Loarte, A., Tribaldos, V.

“…Abstract The most relevant features of FLIPEC (Free fLow Iterative Plasma Equilibrium Code) are presented. This new code iteratively calculates free-boundary,…”
Get full text

A novel efficient solver for Ampere's equation in general toroidal topologies based on singular value decomposition techniques by Reynolds-Barredo, J.M., Peraza-Rodríguez, H., Sanchez, R., Tribaldos, V.

“…•A new fast method is proposed to solve Ampere's equation in toroidal domains.•The method uses a mixed spectral – difference discretization.•A fast solver is…”
Get full text

Multi-pellet injection into the NBI-heated phase of TJ-II plasmas by McCarthy, K.J., García-Cortés, I., Alonso, J.A., Arias-Camisón, A., Ascasíbar, E., Baciero, A., Cappa, A., Carrasco, R., Chmyga, O.O., Estrada, T., García, R., Hernández-Sánchez, J., Hernanz, F.J., Kozachok, O.S., López Miranda, B., Medina, F., Medina-Roque, D., van Milligen, B., Navarro, M., Ochando, M.A., de Pablos, J.L., Panadero, N., Pastor, I., de la Riva, J., Rodríguez, M. C., Tafalla, D., Tribaldos, V.

“…Abstract A pellet-induced enhanced confinement (PiEC) phase, with general characteristics similar to those reported for the stellarator W7-X, is observed after…”
Get full text

Discrete fast‐ion detection with energy discrimination in plasmas having edge‐localized mode‐like instabilities in the stellarator TJ‐II by Martínez, M., Zurro, B., Baciero, A., Jiménez‐Rey, D., Tribaldos, V., López‐Fraguas, A., Muñoz, D.

“…The existence of a population of ions, with energies well above the corresponding thermal values, in plasmas heated by neutral beam injection (NBI) in the…”
Get full text

Neural network differential equation and plasma equilibrium solver by van Milligen BP, Tribaldos, V, V, Jiménez, JA

Get full text

Optimization of energy confinement in the 1/ ν regime for stellarators by Seiwald, B., Kasilov, S.V., Kernbichler, W., Kalyuzhnyj, V.N., Nemov, V.V., Tribaldos, V., Jiménez, J.A.

“…A set of powerful tools has been developed in the last years for the design of new stellarator devices. These codes, usually working in magnetic co-ordinates,…”
Get full text

Profile structures of TJ-II stellarator plasmas by Herranz, J, Pastor, I, I, Castejon, F, de La Luna E, Garcia-Cortes, I, I, Barth, CJ, Ascasibar, E, Sanchez, J, Tribaldos, V, V

“…Fine structures are found in the TJ-II stellarator electron temperature and density profiles, when they are measured using a high spatial resolution Thomson…”
Get full text

On a High-Mirror Stellarator Reactor Exploratory Concept With Neutrons Concentrated on Centrifuge Liquids by Queral, V., Fernandez, I., de Castro, A., Spong, D., Cabrera, S., Tribaldos, V., Reynolds, J. M., Rincon, E.

“…In the framework of fusion energy research based on magnetic confinement, stellarators allow numerous degrees of freedom for the design of the magnetic trap…”
Get full text

Using a Deep Neural Network and Transfer Learning to Bridge Scales for Seismic Phase Picking by Chai, Chengping, Maceira, Monica, Santos‐Villalobos, Hector J., Venkatakrishnan, Singanallur V., Schoenball, Martin, Zhu, Weiqiang, Beroza, Gregory C., Thurber, Clifford

“…The important task of tracking seismic activity requires both sensitive detection and accurate earthquake location. Approximate earthquake locations can be…”
Get full text

Constraining maximum event magnitude during injection-triggered seismicity by Li, Ziyan, Elsworth, Derek, Wang, Chaoyi

“…Understanding mechanisms controlling fluid injection-triggered seismicity is key in defining strategies to ameliorate it. Recent triggered events (e.g. Pohang,…”
Get full text

Using in-situ strain measurements to evaluate the accuracy of stress estimation procedures from fracture injection/shut-in tests by Guglielmi, Yves, McClure, Mark, Burghardt, Jeffrey, Morris, Joseph P., Doe, Thomas, Knox, Hunter, Vermeul, Vince, Kneafsey, Tim, Ajo-Franklin, J., Beckers, K., Blankenship, D., Bonneville, A., Boyd, L., Burghardt, J.A., Chakravarty, A., Chen, T., Chen, Y., Chi, B., Condon, K., Dobson, P.F., Doe, T., Doughty, C.A., Elsworth, D., Feng, Z., Foris, A., Frash, L.P., Fu, P., Guglielmi, Y., Heise, J., Hopp, C., Horner, J., Hu, M., Huang, H., Huang, L., Im, K.J., Ingraham, M., Jafarov, E., Johnson, S.E., Johnston, B., Kim, K., King, D.K., Knox, H., Knox, J., Kumar, D., Kutun, K., Lee, M., Li, D., Li, K., Maceira, M., Makedonska, N., Mattson, E., McLennan, J., McLing, T., Medler, C., Mellors, R.J., Metcalfe, E., Miskimins, J., Moore, J., Morency, C.E., Morris, J.P., Nakagawa, S., Neupane, G., Newman, G., Nieto, A., Paronish, T., Petrov, P., Podgorney, R., Polsky, Y., Pope, J., Pyatina, T., Reimers, C., Roberts, B.Q., Rodríguez-Tribaldos, V., Rynders, D., Schwering, P., Sherman, C.S., Smith, M.M., Sonnenthal, E.L., Soom, F.A., Sprinkle, D.P., Sprinkle, S., Strickland, C.E., Su, J., Templeton, D., Thomle, J.N., Ulrich, C., Vachaparampil, A., Valladao, C.A., Vandermeer, W., Vermeul, V.R., Wagoner, J.L., Welch, N., White, J., White, M.D., Winterfeld, P., Wu, H., Wu, Y.S., Zhang, Y., Zhou, Q., Zoback, M.D.

“…Fracture injection/shut-in tests are commonly used to measure the state of stress in the subsurface. Injection creates a hydraulic fracture (or in some cases,…”
Get full text

Creation of a Mixed‐Mode Fracture Network at Mesoscale Through Hydraulic Fracturing and Shear Stimulation by Schoenball, Martin, Ajo‐Franklin, Jonathan B., Blankenship, Doug, Chai, Chengping, Chakravarty, Aditya, Dobson, Patrick, Hopp, Chet, Kneafsey, Timothy, Knox, Hunter A., Maceira, Monica, Robertson, Michelle C., Sprinkle, Parker, Strickland, Christopher, Templeton, Dennise, Schwering, Paul C., Ulrich, Craig, Wood, Todd

“…Enhanced Geothermal Systems could provide a substantial contribution to the global energy demand if their implementation could overcome inherent challenges…”
Get full text

Electron cyclotron emission measurements on TJ-II stellarator plasmas by de la Luna, E, Garcı́a-Cortés, I, Tribaldos, V, Tabarés, F, Jiménez, J.A, Estrada, T, Ascası́bar, E, Cappa, A, Castejón, F, Fernández, A, Herranz, J, Likin, K, López-Fraguas, A, Martı́n, R, McCarthy, K, Pastor, I, Sánchez, J, Tafalla, D, Zurro, B

“…Electron cyclotron emission (ECE) measurements are used to investigate the changes in the electron temperature profile during on axis and off axis EC-heating…”
Get full text

Stability optimization of energetic particle driven modes in nuclear fusion devices: the FAR3d gyro-fluid code by Varela, J., Spong, D., Garcia, L., Ghai, Y., Ortiz, J.

“…The development of reduced models provide efficient methods that can be used to perform short term experimental data analysis or narrow down the parametric…”
Get full text

Optimization of energy confinement in the 1/v regime for stellarators by SEIWALD, B, KASILOV, S. V, KLERNBICHLER, W, KALYUZHNYJ, V. N, NEMOV, V. V, TRIBALDOS, V, JIMENE, J. A

Get full text

Effect of the neutral beam injector operational regime on the Alfven eigenmode saturation phase in DIII-D plasma by Varela, J, Spong, D A, Garcia, L, Ghai, Y, Zarzoso, D, del-Castillo-Negrete, D, Betar, H, Ortiz, J, Pace, D C, Van Zeeland, M A, Du, X, Sanchez, R, Tribaldos, V, Reynolds-Barredo, J M

“…Plasma Phys. Control. Fusion 65 125004 2023 The aim of this study is to analyze the effect of the neutral beam injector (NBI) operation regime on the…”
Get full text

Comments on "Accelerated learning algorithm for multilayer perceptrons: optimization layer by layer" by Van Milligen, B.Ph, Tribaldos, V., Jimenez, J.A., Santa Cruz, C.

“…In the above paper by Ergezinger and Thomsen (ibid. vol.6 (1991)), a new method for training multilayer perceptron, called optimization layer by layer (OLL),…”
Get full text

Plasma boundary and SOL studies of ECH-plasmas in TJ-II stellarator with diagnosed mobile poloidal limiters by de la Cal, E., Brañas, B., Tabarés, F.L., Tafalla, D., Fraguas, A.L., Pedrosa, M.A., Tribaldos, V., Ascasibar, E., Herranz, J., Pastor, I.

“…TJ-II is a medium size (major radius R=1.5 m, average minor plasma radius a<0.2 m , on axis magnetic field B=1 T) helical axis stellarator operating in its…”
Get full text

Radial electric fields and confinement in the TJ-II stellarator by Krupnik, L., Alonso, A., Ascasibar, E., Estrada, T., Hidalgo, C., van Milligen, B., Ochando, M., Pedrosa, M., de Pablos, J. L., Tribaldos, V., Chmyga, A., Dreval, N., Deshko, G., Khrebtov, S., Komarov, A., Kozachok, A., Tereshin, V., Eliseev, L., Melnikov, A., Silva, C.

Get full text