Results 61 to 70 of about 11,826,453 (193)

Un Gamero apasionado. O de redes filiales, políticas y sociales entre Costa Rica, Nicoya, Nicaragua, Panamá y Honduras en el siglo XVIII

open access: yesDiálogos, 2021
El encuentro de tres cartas de desamor en el Archivo Nacional de Costa Rica ha generado el contenido de este artículo. José Tomás Adalid Gamero y Muñoz, nace en Rivas, Nicaragua en 1771, y pasa parte de su vida entre Honduras y Nicoya, específicamente ...
Gina Nazareth Rivera Hernández
doaj   +1 more source

Endotaxial Si nanolines in Si(001):H

open access: yes, 2011
We present a detailed study of the structural and electronic properties of a self-assembled silicon nanoline embedded in the H-terminated silicon (001) surface, known as the Haiku stripe.
Bianco, F.   +5 more
core   +2 more sources

Surface Photovoltage Spectroscopy as a Valuable Tool for Evaluating Oxidation Processes in the Microelectronics Industry

open access: yesphysica status solidi (a), Volume 221, Issue 17, September 2024.
The minority carrier diffusion length (MCDL) and the flat band voltage, determined by surface photovoltage spectroscopy measurements, are compared in n‐ and p‐type Si wafers after oxidation under different conditions using various tools (horizontal and vertical furnaces, atomic layer deposition (ALD), low‐pressure chemical vapor deposition, and plasma ...
Vladimir Kolkovsky
wiley   +1 more source

Natural‐air‐cooled 5 kVA single‐phase GaN inverter with paralleled multilayer PCB magnetics

open access: yesThe Journal of Engineering, Volume 2018, Issue 2, Page 94-103, February 2018., 2018
In this study, a systematic approach to the design and development of a high‐efficiency, natural‐air‐cooled, single‐phase inverter with a multilayer high‐current printed‐circuit board (PCB) magnetics is presented. The size and efficiency of inverters implemented with the silicon transistor technology have almost reached a certain limit. The use of wide
Hüseyin Meşe, Işık Çadırcı
wiley   +1 more source

Formación de las emociones y su incidencia en la inestabilidad motriz en los niños de 4-5 años en la escuela José De Vasconcellos

open access: yesEducare, 2022
Este artículo sintetiza el trabajo de investigación desarrollado en la Escuela “José de Vasconcellos”, el cual tuvo como objetivo establecer la incidencia de la formación de emociones en la inestabilidad motriz en 19 niños de 4 a 5.
Eunice Berenice Vélez Ávila   +2 more
doaj   +1 more source

Optimistic versus Pessimistic--Optimal Judgemental Bias with Reference Point [PDF]

open access: yes, 2012
This paper develops a model of reference-dependent assessment of subjective beliefs in which loss-averse people optimally choose the expectation as the reference point to balance the current felicity from the optimistic anticipation and the future ...
Chen, Si
core   +1 more source

Estrategia didáctica para el desarrollo lingüístico de los niños de 4 años de la Unidad Educativa Fiscal “El Palmar”

open access: yesEducare, 2022
Este artículo reporta los resultados de un estudio que tuvo como propósito el diseño de una estrategia didáctica basada en la lectoescritura que permita el desarrollo lingüístico de los niños y niñas de la Unidad Educativa Fiscal “El Palmar” en edad ...
Melva Clementina Bravo Palacios   +1 more
doaj   +1 more source

PAPR Reduction and Data Security Improvement for OFDM Technique Using Chaos System

open access: yesJournal of Communications Software and Systems, 2019
Orthogonal Frequency Division Multiplexing (OFDM) is the most popular multicarrier technique because it produces several advantages such as higher spectral efficiency, high transmission rate, robustness to fading channel and etc..
Muntadher Kadhim Abdullah   +1 more
doaj  

A Divide-and-Conquer Solver for Kernel Support Vector Machines [PDF]

open access: yes, 2013
The kernel support vector machine (SVM) is one of the most widely used classification methods; however, the amount of computation required becomes the bottleneck when facing millions of samples.
Dhillon, Inderjit S.   +2 more
core   +1 more source

A systematic approach to sketch Bethe-Salpeter equation

open access: yes, 2016
To study meson properties, one needs to solve the gap equation for the quark propagator and the Bethe-Salpeter (BS) equation for the meson wavefunction, self-consistently. The gluon propagator, the quark-gluon vertex, and the quark--anti-quark scattering
Qin, Si-xue
core   +2 more sources

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