Results 151 to 160 of about 1,322,603 (362)

Marcas da Ooó

open access: yesCaligrama: Revista de Estudos Românicos, 2011
Resumo: Neste estudo,  pretendemos perscrutar, entre a escrita e o escritor, um aspecto da estética rosiana capaz de sintetizar, em alguns momentos, nas conexões das letras, como um ideograma, o caráter polifônico do texto.Palavras-chave: Literatura brasileira; Guimarães Rosa; imagem; polifonía.Résumé: Cette étude vise identifier, entre l’écriture et l’
openaire   +4 more sources

Flexible Conservation Measures on Working Land: What Challenges Lie Ahead? [PDF]

open access: yes
From 1985 to 2002, most Federal conservation dollars going to farm operators have been to retire land from crop production. Yet most U.S. farmland (850 million acres) remains in active production. The Farm Security and Rural Investment (FSRI) Act of 2002
Cattaneo, Andrea   +3 more
core   +1 more source

The strategic function of the “Dircom” in Spain in 2010 [PDF]

open access: yes, 2012
La investigación que se presenta en este artículo es el resultado de un análisis comparado de algunos de los resultados de dos estudios sobre la función de la figura del Dircom en el estado español, concretamente de aquellos elementos tratados en el ...
Marca, Guillem, Matilla, Kathy
core   +1 more source

Thermoelectric Properties of a Family of Benzodifuranone‐Based Conjugated Copolymers in Oriented Thin Films Doped Sequentially With NDMBI‐H

open access: yesAdvanced Electronic Materials, EarlyView.
Combining high polymer orientation of n‐type copolymers by temperature rubbing and sequential doping with N‐DMBI results in a strong improvement of electrical conductivity and thermoelectric power factors reaching up to 9.8 ± 1.6 S cm−1 and 8 ± 3 µW m−1.K2, respectively.
Shubhradip Guchait   +7 more
wiley   +1 more source

On the Enhanced p‐Type Performance of Back‐Gated WS2 Devices

open access: yesAdvanced Electronic Materials, EarlyView.
A scalable method for directly growing WS2 enables robust and persistent p‐type behavior in back‐gated FETs, independent of metal contacts, thickness, or ambient conditions. Electrical measurements reveal minimal Schottky barrier heights and stable thermionic transport, while first‐principles simulations suggest tungsten vacancies or WO3 species as the
Carlos Marquez   +14 more
wiley   +1 more source

Análisis del valor de las empresas informativas

open access: yesPalabra Clave, 2010
DOI: 10.5294/pacla.2010.13.1.3 La industria de la comunicación no es ajena a la situación económica mundial de los últimos trimestres. Como síntoma de ello, en este sector se llevan a cabo los mismos, o semejantes, procesos económicos de ...
María José Pérez-Serrano
doaj  

Corrosion‐Resistant Shape‐Programmable Zn–I2 Battery

open access: yesAdvanced Energy Materials, EarlyView.
Introducing Zn–I2 battery with a shape‐programmable feature and high corrosion resistance. NiTi@Zn architecture as anode shows long‐term stability pertaining to planar and dense zinc morphology and shows efficient flexibility and shape‐programmability from NiTi backbone.
Keval K. Sonigara   +2 more
wiley   +1 more source

Decoupling Membrane Electrode Assembly Materials Complexity from Fuel Cell Performance through Image‐Based Multiphase and Multiphysics Modelling

open access: yesAdvanced Energy Materials, EarlyView.
A high‐resolution image‐based multiphase and multi‐physics modelling framework is developed to decouple structural changes in the membrane electrode assemblies of high‐temperature proton exchange membrane fuel cells. These changes are then digitally combined to show how morphological defects such as membrane pores, catalyst cracks, and phase migration ...
Jianuo Chen   +13 more
wiley   +1 more source

Marcas blancas

open access: yes, 2009
Postprint (author's final draft)
openaire   +1 more source

Zero‐Valent Iron Nanoparticles Supported on Si/N Codoped Carbon Materials: From Biomass to Oxygen Reduction Electrocatalysts and Supercapacitors

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Zero‐valent iron nanoparticles on Si/N codoped carbon support are prepared from hydrothermal carbonization and pyrolysis of biomass, silica, and iron salt. The Fe nanoparticles are evenly distributed on the support and encapsulated in graphitic or iron oxide shells.
Lilian Moumaneix   +2 more
wiley   +1 more source

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