Zobrazeno 1 - 10
of 2 742
pro vyhledávání: '"Ruíz, Juan A."'
This paper is devoted to obtain closed form solutions for the semiclassical (or WKB) approximation of the heat kernel propagator of the diffusion equation defined by the constant elasticity variance (CEV) option pricing model. One of the key points i
Externí odkaz:
http://arxiv.org/abs/2411.18154
Autor:
Ruiz, Juan Álvarez, Rey, Julián
We compute the non-Gaussian corrections to the energy density and anisotropies of gravitational waves induced after an ultra-slow-roll phase of inflation by using a diagrammatic approach, and present the corresponding Feynman rules. Our two-loop calc
Externí odkaz:
http://arxiv.org/abs/2410.09014
Autor:
Speirs, David C., Ruiz-Ruiz, Juan, Giacomin, Maurizio, Hall-Chen, Valerian H., Phelps, Alan D. R., Vann, Roddy, Huggard, Peter G., Wang, Hui, Field, Anthony, Ronald, Kevin
Plasma turbulence on disparate spatial and temporal scales plays a key role in defining the level of confinement achievable in tokamaks, with the development of reduced numerical models for cross-scale turbulence effects informed by experimental meas
Externí odkaz:
http://arxiv.org/abs/2408.15807
Autor:
Ruiz, Juan Ruiz, Parra, Felix I., Hall-Chen, Valerian H., Belrhali, Nathan, Giroud, Carine, Hillesheim, Jon C., Lopez, Nicolas A., contributors, JET
The phenomenon of beam focusing of microwaves in a plasma near a turning-point caustic is discussed in the context of the analytical solution to the Gaussian beam-tracing equations in the 2D linear-layer problem. The location of maximum beam focusing
Externí odkaz:
http://arxiv.org/abs/2408.12919
The AC optimal power flow (AC-OPF) problem is essential for power system operations, but its non-convex nature makes it challenging to solve. A widely used simplification is the linearized DC optimal power flow (DC-OPF) problem, which can be solved t
Externí odkaz:
http://arxiv.org/abs/2408.05228
Autor:
Ruiz, Juan Ruiz, Garcia, Jeronimo, Barnes, Michael, Dreval, Mykola, Giroud, Carine, Hall-Chen, Valerian H., Hardman, Michael R., Hillesheim, Jon C., Kazakov, Yevgen, Mazzi, Samuele, Parra, Felix I., Patel, Bhavin S., Schekochihin, Alexander A., Stancar, Ziga, Contributors, the JET, Team, the EUROfusion Tokamak Exploitation
We report the first experimental detection of a zero-frequency fluctuation that is pumped by an Alfv\'en mode in a magnetically confined plasma. Core-localized bidirectional Alfv\'en modes of frequency inside the toroidicity-induced gap (and its harm
Externí odkaz:
http://arxiv.org/abs/2407.01255
Autor:
J., Ajay C., McMillan, Ben, Bokshi, Arkaprava, di Siena, Alessandro, Pueschel, M. J., Ruiz, Juan Ruiz
Publikováno v:
AIP Advances 1 July 2024; 14 (7): 075120
Toroidal Alfv\'en eigenmodes (TAEs) can transport fusion-born energetic particles out of the plasma volume, thereby decreasing plasma self-heating efficiency and possibly damaging reactor walls. Therefore, understanding TAE destabilisation and identi
Externí odkaz:
http://arxiv.org/abs/2404.18910
Autor:
Martin, Sebastian, Pineda, Salvador, Perez-Ruiz, Juan, Alguacil, Natalia, Ruiz-Gonzalez, Antonio
Publikováno v:
Education Conference (EDUCON) 2020
Introductory courses on electric circuits at undergraduate level are usually presented in quite abstract terms, with questions and problems quite far from practical problems. This causes the students have difficulties to apply that theory to solve pr
Externí odkaz:
http://arxiv.org/abs/2401.16391
Autor:
Garcia, Jeronimo, Kazakov, Yevgen, Coelho, Rui, Dreval, Mykola, de la Luna, Elena, Solano, Emilia R., Stancar, Ziga, Varela, Jacobo, Baruzzo, Matteo, Belli, Emily, Bonofiglo, Phillip J., Candy, Jeff, Maggi, Costanza F., Mailloux, Joelle, Mazzi, Samuele, Ongena, Jef, Poradzinski, Michal, Ruiz, Juan R., Sharapov, Sergei, Zarzoso, David, contributors, JET
Providing stable and clean energy sources is a necessity for the increasing demands of humanity. Energy produced by fusion reactions, in particular in tokamaks, is a promising path towards that goal. However, there is little experience with plasmas u
Externí odkaz:
http://arxiv.org/abs/2309.11964
The COVID-19 pandemic and its multiple outbreaks have challenged governments around the world. Much of the epidemiological modeling was based on pre-pandemic contact information of the population, which changed drastically due to governmental health
Externí odkaz:
http://arxiv.org/abs/2309.07146