Results 91 to 100 of about 249,376 (254)
Revista Facultad de Ingeniería Universidad de Antioquia, 2003 El artículo presenta tres modelos de competitividad: el de Michael Porter ( diamante de la competitividad), el del International Institute for Management Development (IMD) y el alemán de Competitividad Sistémica. A partir de ellos, Colombia ha diseflado
Guillermo Restrepo-G. +1 more
doaj +1 more source
Stabilization Strategies for Carbon Based Perovskite Solar Cells Under Light, Heat, and Humidity
EcoEnergy, EarlyView.Carbon‐based MA1−x(AVA)xPbI3/CsPbBr3 QD heterostructures fabricated under ambient conditions exhibit < 5% loss under ISOS‐D‐3 and reversible photo‐induced degradation, revealing the dual role of QDs in defect passivation and dynamic interfacial stabilization.
Emilie Planes +4 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A π‐conjugated carbazole (p‐CBZ) layer is electro‐polymerized on BiVO4 to form a p–n heterojunction that enhances charge separation and suppresses surface recombination, while a NiOOH co‐catalyst accelerates oxygen evolution kinetics. The synergistic BVO/p‐CBZ/NiOOH photoanode delivers a high photocurrent density and long‐term stability for efficient ...
Lakshman Sundar Arumugam +11 more
wiley +1 more source
Plan óptimo de producción en una planta embotelladora de gaseosas
Ingenieria Industrial, 2012 El propósito de esta investigación fue diseñar un plan óptimo de producción en una planta embotelladora de gaseosas ubicada en la ciudad de San José de Cúcuta (Colombia), donde se identificaron las restricciones del sistema productivo para el desarrollo ...
Viviana Karolina Ortiz Triana +1 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Oxidized graphene rich in carboxylic acid groups obtained via a simple electrochemical exfoliation route is shown to tackle the main challenges of aqueous Zn‐ion batteries (AZIBs), specifically short Zn anode cycle life and sluggish cathode reaction kinetics.
Enrique Álvarez‐Rubiera +9 more
wiley +1 more source
Light‐Modulated Exchange Bias in Multiferroic Heterostructures
Electron, EarlyView.In this article, exchange bias and magnetization are modulated with visible light at room temperature in PMN‐PZT/FeGa/IrMn multiferroic heterostructures. Photostrictive effect is the main mechanism leading to the modulation of magnetic anisotropy and interfacial exchange bias coupling between the ferromagnetic and antiferromagnetic layers.
Huan Tan +9 more
wiley +1 more source
Productos mexicanos en el mercado uruguayo
, 2011 ALADI. Secretaría General.
ALADI. Secretaría General. Departamento de Promoción del Comercio y Desarrollo de la Competitividad
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Education SciencesPhysics concepts are considered an essential component of STEM (science, technology, engineering, and mathematics) education and fundamental for economic and technological development in the world. However, there can be student academic underperformance,
René Flores-Godínez +4 more
doaj +1 more source
Acuerdo regional de competitividad de la cadena productiva de aceite de palma: zona central
, 2001 Colección Documentos IICA. Serie Competitividad no. 21.En este documento se ha analizado la competitividad de la agricultura y la ganadería colombiana, con una visión de cadenas productivas, tarea que ha dado lugar al establecimiento de amplias bases de ...
Instituto Interamericano de Cooperación para la Agricultura (IICA) +1 more
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Journal of Quaternary Science, EarlyView.ABSTRACT The Cadí Massif (42°17′09″ N, 1°38′11″ E; 2649 m a.s.l.) in the southeastern Pyrenees preserves clear evidence of Late Pleistocene glaciation, although previous research has focused almost exclusively on its northern slope. By contrast, the southern slope has remained largely unexplored.
M. Oliva +5 more
wiley +1 more source