Results 111 to 120 of about 170,094 (335)

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, Gonzalo Rivera‐Sierra, Shirin Siahjani‐Gultekin, Jenifer Rubio‐Magnieto, Anis Allagui, Ignacio Sanjuán, David Franco, Antonio Guerrero, Enrique H. Balaguera, Juan Bisquert   +9 more
wiley   +1 more source

Gestió d'àudio per a la sincronització de múltiples fonts per a DJs [PDF]

, 2012
Aquest document conté originàriament altre material i/o programari només consultable a la Biblioteca de Ciència i ...
Granged Romaní, Víctor, Universitat Autònoma de Barcelona. Escola d'Enginyeria   +1 more
core  

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, Martin Irizar, Longfeng Huang, Mamun Sarker, Mustafa A. Ashoush, Zakaria M. Abd El‐Fattah, Johannes Barth, Frederik Schiller, Afaf El‐Sayed, Fei Gao, Dimas G. de Oteyza, Alexander Sinitskii, Aran Garcia‐Lekue, Martina Corso, Ignacio Piquero‐Zulaica   +14 more
wiley   +1 more source

Tracing metal-CO₂(aq)-solid interactions from deep sources to shallow aquifers [PDF]

, 2015
Tant a nivell acadèmic com a les indústries energètiques involucrades en la captura i emmagatzematge geològic de CO2 (CCS) actualment s'està discutint l'impacte sobre el medi ambient de potencials fuites a conseqüència de la injecció d'aquest cas en ...
Agnelli, Marco, Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals   +1 more
core   +1 more source

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

Advanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo, Masoud Mansouri, Carlos Garcia‐Fernandez, Daniel Sánchez‐Portal, Aran Garcia‐Lekue, Gustavo Ceballos, Aitor Mugarza   +6 more
wiley   +1 more source

Estudi de tecnologies a través de ressonadors acoblats per a la síntesi de filtres [PDF]

, 2008
Aquest treball és un estudi de viabilitat sobre una tecnologia, actualment molt desenvolupada i de baix cost, per a la implementació de circuits de microones anomenada LTCC (Low Temperature Cofired Ceramic), i que permet, entre altres coses, la ...
Crespo-Yepes, Albert, García García, Joan, Universitat Autònoma de Barcelona. Escola d'Enginyeria, Universitat Autònoma de Barcelona. Escola Tècnica Superior d'Enginyeria   +3 more
core  

Ética y comunicación en la gestión de la Investigación e Innovación Responsable (RRI): el papel de las Unidades de Cultura Científica y de la Innovación (UCC+i) [PDF]

, 2017
Aquesta publicació es complementa amb l'obra en línia i en obert de caràcter breu i divulgatiu "La comunicación al servicio de la Investigación e Innovación Responsables: propuesta de un modelo de gestión"L'estudi empíric sobre el paper de l'ètica i la ...
Fernández Beltrán, Francisco, García-Marzá, Domingo, Sanahuja Sanahuja, Rosana   +2 more
core   +1 more source

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

Advanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea, Jordan Santiago Martinez, M. Asunción Molina, Jaime Mazarío, Lucy Costley‐Wood, Christian Cerezo‐Navarrete, Carlo Marini, Eduardo Villalobos‐Portillo, Andrew M. Beale, Pascual Oña‐Burgos   +9 more
wiley   +1 more source

Porous Hybrid Soft Actuators From Liquid Crystal Networks and Lyotropic Chromonic Liquid Crystal Templated Hydrogels

Advanced Materials, EarlyView.
The graphic illustrates the design of a hybrid bilayer composed of a liquid crystal hydrogel (LCH) and a liquid crystal network (LCN). The figure highlights the magnetic alignment of the chromonic hydrogel and the thermal‐responsive actuation of the LCN along with the LCH when both layers are aligned or misaligned, enabling programmable, light‐driven ...
Ramón Santiago Herrera Restrepo, Irving Hafed Tejedor García, Matthew Gene Scarfo, Negin Bouzari, Negar Rajabi, Olga Bantysh, Joel Torres‐Andrés, Christopher W. V. James, Maria Guix, Amirreza Aghakhani, Jordi Ignés‐Mullol, Salvador Pané, Josep Puigmartí‐Luis, Hamed Shahsavan   +13 more
wiley   +1 more source

Urban Metabolism: A review of recent literature on the subject

Documents d'Anàlisi Geogràfica, 2014
Urban areas are the primary habitat for a majority of the global population. The development of cities not only entails a fundamental change in human settlement patterns but also a dramatic transformation of the physical environment.
Marta Dinarès
doaj   +1 more source