Results 11 to 20 of about 64,946 (104)
1949-2009: la OTAN ante su futuro [PDF]
, 2009 Transformada geográfica y políticamente desde la caída de la URSS, la OTAN reclama un nuevo Concepto Estratégico. En su 60º aniversario, no parece fácil encontrar un sustituto a la Alianza Atlántica pese a que dentro y fuera de la organización muchos ...
Pozo, Fernando del
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Materials Engineering Strategies to Control Metal Oxides Nanowires Sensing Properties
Advanced Materials Interfaces, Volume 9, Issue 12, April 22, 2022., 2022 Since last two decades, nanostructured metal oxides (MOXs) are extensively explored for gas sensing applications. In particular, MOXs nanowire‐based conductometric gas sensors show superior performance due to their unique physical/chemical properties.
Navpreet Kaur +2 more
wiley +1 more source
Education Research International, Volume 2022, Issue 1, 2022., 2022 This research aims to provide a general visualization of studies focused on the intellectual capital developed in Colombia. Firstly, detailed information on research articles on this topic was obtained from the Scopus database. Secondly, the information was analyzed using Excel through the direct comparison and analysis of graphs with references and ...
W. Quintero-Quintero +3 more
wiley +1 more source
Nanostructuring Germanium Nanowires by In Situ TEM Ion Irradiation
Particle &Particle Systems Characterization, Volume 38, Issue 12, December 2021., 2021 Germanium nanowires were irradiated with a 300 keV xenon ion beam in situ within a transmission electron microscope inducing the formation of nanopores. The features of the nanostructures are revealed by using data acquired in situ at various temperatures and 3D reconstruction of the nanostructured nanowire.
Osmane Camara +10 more
wiley +1 more source
Novel Christmas Branched Like NiO/NiWO4/WO3 (p–p–n) Nanowire Heterostructures for Chemical Sensing
Advanced Functional Materials, Volume 31, Issue 38, September 16, 2021., 2021 A simple, high yield two‐step vapor‐phase growth method is implemented for the fabrication of novel heterostructures of (p/p/n) NiO/NiWO4/WO3. These heterostructures exhibit excellent sensing performance toward different oxidizing and reducing gases by modulating their optimal working temperature and charge carrier transport and hence show a high ...
Navpreet Kaur +3 more
wiley +1 more source
Spatio‐Spectral‐Temporal Imaging of Fast Transient Phenomena Using a Random Array of Pinholes
Advanced Photonics Research, Volume 2, Issue 2, February 2021., 2021 An optical chaotic wave generator is used to map 4D spatio‐spectral locations of a point to unique 2D random monochrome intensity distributions. A 5D high‐speed imaging technology is developed based on the map to convert a monochrome high‐speed camera into a 3D color high‐speed camera.
Vijayakumar Anand +3 more
wiley +1 more source
Más acá del Colorado: historia regional y relaciones fronterizas en la Norpatagonia argentina, el caso de Neuquén [PDF]
, 2012 En el caso de la provincia de Neuquén, ubicada en el noroeste de la región patagónica argentina, las condiciones de mediterraneidad y aislamiento confirieron al territorio una particular singularidad.
Bandieri, Susana Ofelia
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Forum Revista Departamento de Ciencia Política, 2019 En la actual coyuntura política internacional son cada vez más numerosas las experiencias que empiezan a cuestionar la institucionalidad formal actual y el multilateralismo, no obstante, Colombia parece ir en contravía: ¿cómo entender su reciente ...
Mariangela Rueda-Fiorentino +1 more
doaj +1 more source
Kranion, 2022 Durante la Primera Guerra Mundial, diversas sustancias químicas se utilizaron de forma sistemática como armas. Años después, los nazis descubrieron accidentalmente los agentes neurotóxicos organofosforados (ANOF) del grupo G: tabún, sarín y somán; pero ...
Robert Belvís +3 more
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Promesas y realidades: el fracaso del plan de salida de Estados Unidos de Afganistán (2009-2014)
Estudios de Asia y África, 2019 El presente artículo pretende demostrar que el grave deterioro de la seguridad en Afganistán, luego de la retirada de las fuerzas multinacionales comandadas por la Organización del Tratado del Atlántico Norte (OTAN) en diciembre de 2014, ha sido ...
Enrique Baltar Rodríguez
doaj +1 more source