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Coordenação local do Eu(III) em híbridos orgânicos/inorgânicos emissores de luz branca
(Sociedade Brasileira de Química, 2001-08-01)
Eu3+ luminescence and EXAFS (Extended X-ray Absorption Fine Structure) results are presented for organic-inorganic hybrid gel hosts composed of a siliceous network to which small chains of oxyethylene units are covalently ...
El arte en la educación: perspectivas desde la sociedad red
(Universidad Euroamericana (Panamá). Coordinación de Investigación y Posgrado., 2023-04)
La sociedad red constituye una transformación en los procesos educativos, al respecto, el conectivismo plantea una visión que atisba cambios en la labor tradicional del docente, así como una transformación en los procesos ...
Occurrence of 2 n microspore production in diploid interspecific hybrids between the wild parental species of peanut ( Arachis hypogaea L., Leguminosae) and its relevance in the genetic origin of the cultigen
(Crop Science Society of America, 2020-06)
Unreduced (2n) gametes are the driving force that leads to polyploidization of plants in nature and an important tool for ploidy breeding. Peanut (Arachis hypogaea L., Leguminosae) seems most likely to have originated by ...
Puentes de concreto de viga cajón híbridos con paredes en celosía
(Universidad Nacional de ColombiaMedellín - Minas - Maestría en Ingeniería - EstructurasDepartamento de Ingeniería CivilFacultad de MinasMedellín, ColombiaUniversidad Nacional de Colombia - Sede Medellín, 2022-10-12)
Los puentes de concreto segmentales de viga cajón son una de las soluciones más utilizadas en la ingeniería de puentes debido a sus múltiples ventajas sobre otras tipologías, entre las que se encuentran su facilidad ...
Supramolecular Approach to Gold Nanoparticle/Triruthenium Cluster Hybrid Materials and Interfaces
(WILEY-BLACKWELL, 2011)
A systematic and comprehensive study of the interaction of citrate-stabilized gold nanoparticles with triruthenium cluster complexes of general formula [Ru(3)(CH(3)COO)(6)(L)](+) [L = 4-cyanopyridine (4-CNpy), 4,4`-bipyridine ...
Electronic structure studies of diradicals derived from Closo-Carboranes
(Springer, 2013-03)
Electronic structure computations have been performed on diradical systems composed of two carborane radicals CB11H12 connected through acetylene, ethylene and ethane bridge units, leading, respectively, to a linear and ...
Performance evaluation of a novel hybrid multipulse rectifier for utility interface of power electronic converters
(Institute of Electrical and Electronics Engineers (IEEE), 2007-12-01)
This paper presents an improved analysis of a novel Programmable Power-factor-corrected-Based Hybrid Multipulse Power Rectifier (PFC-HMPR) for utility interface of power electronic converters. The proposed hybrid multipulse ...
Full-color phosphors from amine-functionalized crosslinked hybrids lacking metal activator ions
(2001-04-01)
Sol-gel derived hybrids that contain OCH2CH2 (polyethylene glycol, PEG) repeat units grafted onto a siliceous backbone by urea, -NHC(=O)NH-, or urethane, -NHC(=O)O-, bridges have been prepared. It is demonstrated that the ...
Full-color phosphors from amine-functionalized crosslinked hybrids lacking metal activator ions
(2001-04-01)
Sol-gel derived hybrids that contain OCH2CH2 (polyethylene glycol, PEG) repeat units grafted onto a siliceous backbone by urea, -NHC(=O)NH-, or urethane, -NHC(=O)O-, bridges have been prepared. It is demonstrated that the ...