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Mostrando ítems 141-150 de 227
Avaliação da resistência mecânica de liga ti-6al-4v soldada com processos laser e plasma de uso odontológico
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em OdontologiaCiências da SaúdeUFU, 2016)
Modeling and simulation of an adaptive spatial modulation scheme for optimization of effective bandwidth in communications over visible light (VLC), using solid state devices for lighting (SSL)
(Universidad Nacional de ColombiaManizales - Ingeniería y Arquitectura - Doctorado en Ingeniería - AutomáticaFacultad de Ingeniería y ArquitecturaManizales, ColombiaUniversidad Nacional de Colombia - Sede Manizales, 2021)
This thesis presents an investigation of the different formats and modulation methods used in Optical Wireless Communications (OWC), specifically in Visible Light Communications (VLC), using solid-state lighting devices ...
Obtención y caracterización electroquímica y estructural de nanocompositos de copolimeros sulfonados/bismuto – estaño
(Bogotá - Ingeniería - Doctorado en Ingeniería - Ciencia y Tecnología de MaterialesUniversidad Nacional de Colombia - Sede Bogotá, 2017-04-12)
In this research, sulfonated styrene - divinylbenzene copolymers and sodium styrene -
divinylbenzene - vinylbenzene sulfonate terpolymers were synthesized, which were
characterized and used as polymer matrix for the ...
Corrosion-erosion effect on TiN/TiAlN multilayers
(Springer, 2011-12-16)
The goal of this work is to study electrochemical behavior under corrosion-erosion conditions for [TiN/ TiAlN]n multilayer coatings with bilayer number (n) of 2, 6, 12, and 24 and/or bilayer period (K) of 1500, 500, 250, ...
Erbium ring fiber laser cavity based on tip modal interferometer and its tunable multi-wavelength response for refractive index and temperature
(Multidisciplinary Digital Publishing Institute (MDPI), 2018-08-10)
A tunable multi-wavelength fiber laser is proposed and demonstrated based on two main elements: an erbium-doped fiber ring cavity and compact intermodal fiber structure. The modal fiber interferometer is fabricated using ...
Influence of the molding process and different surface regularization methods on the compressive strength of concrete specimensInfluencia del proceso de moldeo y diferentes métodos de regularización de superficies en la resistencia a la compresión de probetas de hormigón
(Corporación Universidad de la Costa, 2020)
Physiological characteristics, geochemical properties and hydrological variables influencing pathogen migration in subsurface system: what we know or not?
(China University of Geosciences (Beijing) and Peking UniversityChina, 2022)