Zobrazeno 1 - 10
of 573
pro vyhledávání: '"José A. Luna"'
Autor:
Erick Gastellóu, Rafael García, Ana M. Herrera, Antonio Ramos, Godofredo García, Gustavo A. Hirata, José A. Luna, Jorge A. Rodríguez, Mario Robles, Yani D. Ramírez, Iván E. García
Publikováno v:
Crystals, Vol 14, Iss 7, p 618 (2024)
Mg-Zn co-doped GaN films were deposited by radio-frequency magnetron sputtering in an N2-Ar2 environment at room temperature, using a target prepared with Mg-Zn co-doped GaN powders. X-ray diffraction patterns showed broad peaks with an average cryst
Externí odkaz:
https://doaj.org/article/ee31e6b613994732ad3f76710bf7bd82
Autor:
Erick Gastellóu, Rafael García, Ana M. Herrera, Antonio Ramos, Godofredo García, Gustavo A. Hirata, José A. Luna, Roberto C. Carrillo, Jorge A. Rodríguez, Mario Robles, Yani D. Ramírez
Publikováno v:
Crystals, Vol 13, Iss 10, p 1421 (2023)
Hexagonal nanocrystals were obtained from Zn-doped GaN powders and Mg-doped GaN powders, which were synthesized via pyrolysis of a viscous complex compound, followed by its nitridation. XRD showed well-defined peaks for hexagonal GaN with an average
Externí odkaz:
https://doaj.org/article/268327c66ad64f95bb498aa154f4a6ca
Autor:
Erick Gastellóu, Rafael García, Ana M. Herrera, Antonio Ramos, Godofredo García, Gustavo A. Hirata, José A. Luna, Roberto C. Carrillo, Jorge A. Rodríguez, Mario Robles, Yani D. Ramírez, Guillermo Martínez
Publikováno v:
Materials, Vol 16, Iss 8, p 3272 (2023)
Mg-Zn co-dopedGaN powders via the nitridation of a Ga-Mg-Zn metallic solution at 1000 °C for 2 h in ammonia flow were obtained. XRD patterns for the Mg-Zn co-dopedGaN powders showed a crystal size average of 46.88 nm. Scanning electron microscopy mi
Externí odkaz:
https://doaj.org/article/7ef57ed90ff449b590b4dd2d330e52cb
Autor:
Nelson N. Espinosa-Queb, José A. Luna-Sánchez, Hernán Revilla-Casaos, Jorge A. Domínguez-Rodríguez, Ángel J. Lara-Valdés, Juan M. Tarelo-Saucedo
Publikováno v:
Cirugía Cardiovascular, Vol 26, Iss 6, Pp 283-288 (2019)
Resumen: Introducción y objetivos: Los tumores cardíacos primarios son muy raros (0,0017-0,23%), de los cuales los mixomas son los más frecuentes (80%). Su ubicación principal es la aurícula izquierda y, muy rara vez, las válvulas (
Externí odkaz:
https://doaj.org/article/4cb5996782f6429c99ac63fd455b72e1
Autor:
Ana C. Piñón Reyes, Roberto C. Ambrosio Lázaro, Karim Monfil Leyva, José A. Luna López, Javier Flores Méndez, Aurelio H. Heredia Jiménez, Ana L. Muñoz Zurita, Francisco Severiano Carrillo, Esteban Ojeda Durán
Publikováno v:
Micromachines, Vol 12, Iss 12, p 1508 (2021)
In this paper, a n-i-p planar heterojunction simulation of Sn-based iodide perovskite solar cell (PSC) is proposed. The solar cell structure consists of a Fluorine-doped tin oxide (FTO) substrate on which titanium oxide (TiO2) is placed; this materia
Externí odkaz:
https://doaj.org/article/e46fd91102f9429bbad71e7d14ad1f06
Autor:
Haydee P. Martínez, José A. Luna, Roberto Morales, José F. Casco, José A. D. Hernández, Adan Luna, Zaira J. Hernández, Gabriel Mendoza, Karim Monfil, Raquel Ramírez, Jesús Carrillo, Javier Flores
Publikováno v:
Nanomaterials, Vol 11, Iss 4, p 943 (2021)
In this work, electroluminescence in Metal-Insulator-Semiconductors (MIS) and Metal-Insulator-Metal (MIM)-type structures was studied. These structures were fabricated with single- and double-layer silicon-rich-oxide (SRO) films by means of Hot Filam
Externí odkaz:
https://doaj.org/article/b50298603e0b458581ecc84144afecfa
This is the final part of a series of papers where we study perturbations of divergence form second order elliptic operators $-\operatorname{div} A \nabla$ by first and zero order terms, whose complex coefficients lie in critical spaces, via the meth
Externí odkaz:
http://arxiv.org/abs/2302.02746
Autor:
Primavera López-Salazar, Gabriel Juárez-Díaz, Javier Martínez-Juárez, José A. Luna-López, Ramón Peña Sierra, Yuri Koudriavtsev, Carlos Palomino-Jiménez, Angel. P. Rodríguez-Victoria
Publikováno v:
Crystals, Vol 9, Iss 3, p 131 (2019)
Copper from a solid source was diffused into undoped n-type bulk ZnO (001) single crystals at 1000 °C under a nitrogen atmosphere at different diffusion times. The Cu diffusion profiles were obtained by Secondary ion mass spectroscopy (SIMS), and th
Externí odkaz:
https://doaj.org/article/e816e441b4654997be2cad58336a8547
We show that while individual Riesz transforms are two weight norm stable under biLipschitz change of variables on $A_{\infty}$ weights, they are two weight norm unstable under even rotational change of variables on doubling weights. More precisely,
Externí odkaz:
http://arxiv.org/abs/2208.08400
Autor:
Simón, Zaira Jocelyn Hernández, López, José Alberto Luna, Luz, Álvaro David Hernández De La, Flores, Eduardo, Rodríguez-Gattorno, Geonel, Sharma, Subhash, Herrera, Oscar Raymond
Publikováno v:
In Journal of Alloys and Compounds 5 March 2024 976