Results 71 to 80 of about 1,655,015 (245)
Advanced Materials, EarlyView.Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje +7 more
wiley +1 more source
Hacia una gestión eficaz de las tecnologÃas de la información.
Revista Galega de Economía, 2014 Las TecnologÃas de la Información y las Comunicaciones (TIC) están en todas partes incluso en las estadÃsticas de productividad. Esta afirmación, a modo de antÃtesis de la proposición formulada por el premio Nobel Robert Solow, constituye el punto de partida de este trabajo que se enmarca dentro de unacorriente de investigación que ha sido ...
openaire +1 more source
Effect of anodization on the surface characteristics and electrochemical behaviour of zirconium in artificial saliva [PDF]
, 2016 The paper is focused on elaboration of ZrO2 films on pure zirconium via anodizing inphosphoric acid with and without fluoride at constant potentials of 30 V and 60 V.
Ceré, Silvia +4 more
core +1 more source
Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion
Advanced Materials, EarlyView.This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang +9 more
wiley +1 more source
Dirección estratégica de la tecnologÃa: el caso de isofotón.
Revista Galega de Economía, 2014 Una de las principales dificultades con las que se encuentran los spin-offs es la correcta exploración y explotación de la tecnologÃa como una competencia medular. Su futuro está condicionado a su capacidad para definir y desarrollar una adecuada estrategia tecnológica. Esta aseveración se ilustra con el caso de la empresa ISOFOTÓN S.A., hoy con
openaire +1 more source
Structural analysis of magnetic nanocomposites based on chitosan [PDF]
, 2018 This work investigates the structure and magnetic properties of chitosan based films with different contents of magnetic nanoparticles (MNPs) of around 10 nm as well as the effects of the addition of glycerol as plasticizer.
Kloster, Gianina Andrea +5 more
core +2 more sources
A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments
Advanced Materials, EarlyView.The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal +14 more
wiley +1 more source
La difusión de tecnologÃas de proceso en la empresa manufacturera española
Revista Galega de Economía, 2014 La utilización de nuevas tecnologÃas por parte de las empresas ha sido frecuentemente relacionada con mejoras en la eficiencia o en la calidad de los productos. Sin embargo, son muchos los autores que apuntan que, dado el alto riesgo de imitabilidad, la tecnologÃa no puede ser origen de una ventaja competitiva sostenible.
openaire +1 more source
Surface modification after ethanol wet milling: A comparison between pristine glasses produced from natural minerals and analytical grade raw materials [PDF]
, 2017 Four glass compositions were produced taking into account different theoretical Leucite (KAlSi2O6)/Bioglass 45S5 (45% SiO2, 24.5% Na2O, 24.5% CaO, 6% P2O5) ratios using analytical grade reagents only; and replacing some of the reagents by natural ...
Rodríguez Aguado, Elena +3 more
core +1 more source