Results 21 to 30 of about 8,188,307 (287)

Long-term sulfate attack on recycled aggregate concrete immersed in sodium sulfate solution for 10 years

open access: yesMateriales de Construccion, 2020
The effect of recycled concrete aggregate (RCA) on concrete performance against external sulfate attack (ESA) is not yet fully known. In this paper, recycled aggregate concretes (RAC) with 0, 50, 75 and 100% of RCA contents were evaluated after 10 years ...
L. R. Santillán   +3 more
doaj   +1 more source

Temperature-controlled exfoliation of graphite oxide: studies of defects and transport properties of graphene oxide

open access: yesMaterials Research Express, 2022
The quality, structural defects, and transport properties of GO can be tailored by maintaining ultrasonic bath temperature. Herein, the effect of temperature-controlled exfoliation on the structural defects and transport properties of the resulting ...
Satendra Kumar   +6 more
doaj   +1 more source

Cu2ZnSnS4 films with Cu-poor composition prepared by spin coating from a nontoxic methanol-based solution: the effect of annealing temperature

open access: yesJournal of Asian Ceramic Societies, 2020
In comparison with the stoichiometry and Zn-rich/Cu-poor compositions of Cu2ZnSnS4 (CZTS) photovoltaic material, the properties of Cu-poor films have not been explored adequately.
Ali E. Rakhshani, S. Thomas
doaj   +1 more source

The Electrical Properties of Tb-Doped CaF2 Nanoparticles under High Pressure

open access: yesCrystals, 2018
The high-pressure transport behavior of CaF2 nanoparticles with 3 mol% Tb concentrations was studied by alternate-current impedance measurement. All of the electrical parameters vary abnormally at approximately 10.76 GPa, corresponding to the fluorite ...
Tingjing Hu   +8 more
doaj   +1 more source

Transport outlook 2009: Globalisation, crisis and transport [PDF]

open access: yes, 2009
This second ITF Transport Outlook continues building towards a full-fledged Transport Outlook, building upon the first Outlook (JTRC, 20081). The 2008 Outlook investigated the relation between expected GDP evolution and the demand for road transport ...
International Transport Forum, OECD
core   +1 more source

Transport Properties of Rippled Graphene [PDF]

open access: yesActa Physica Polonica A, 2012
The exceptionally high mobility of carriers in graphene is one of its defining characteristics, especially in view of potential applications. Therefore it is of both practical and fundamental importance to understand the mechanisms responsible for limiting the values of mobility.
openaire   +3 more sources

Meeting society's transport needs under tight budgets [PDF]

open access: yes, 2011
In the aftermath of the 2008 financial crisis, both the private and public sectors face stringent constraints in funding for transport infrastructure investment and transport services.
International Transport Forum, OECD
core   +1 more source

Robust Transport Properties in Graphene [PDF]

open access: yesPhysical Review Letters, 2006
Two-dimensional Dirac fermions are used to discuss quasiparticles in graphene in the presence of impurity scattering. Transport properties are completely dominated by diffusion. This may explain why recent experiments did not find weak localization in graphene.
openaire   +4 more sources

Transport outlook 2010: The potential for innovation [PDF]

open access: yes, 2010
This paper provides evidence on and discussion of recent developments in global transport markets and analyzes what policies look most promising for stabilizing CO2-emissions from light-duty vehicles.
International Transport Forum, OECD
core   +1 more source

Effective Transport Properties

open access: yes, 2022
Porous media are an integral part of electrochemical energy conversion and storage devices, including fuel cells, electrolyzers, redox flow batteries and lithium-ion batteries, among others. The calculation of effective transport properties is required for designing more efficient components and for closing the formulation of macroscopic continuum ...
openaire   +3 more sources

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