Results 31 to 40 of about 138,619 (284)

Dressed tunneling approximation for electronic transport through molecular transistors [PDF]

open access: yes, 2014
A theoretical approach for the non-equilibrium transport properties of nanoscale systems coupled to metallic electrodes with strong electron-phonon interactions is presented.
Martín-Rodero, A.   +3 more
core   +2 more sources

The devitrification of PbO-B2O3-ZnO glass doped with Li2O [PDF]

open access: yesJournal of the Serbian Chemical Society, 2000
In this paper the effect of the addition of Li2O on the crystallization behavior of PbO-B2O3-ZnO glass was investigated by the differential thermal analysis (DTA) and X-ray powder diffraction (XRPD) methods.
Živanović Vladimir D.   +4 more
doaj   +1 more source

Feasibility of Using Isokinetic Sampling Techniques to Extract a Representative Sample from Processes in the United Kingdom

open access: yesAtmosphere, 2022
The requirement to monitor and control particulate emissions from industrial processes using continuous emission monitoring systems (CEMS) has significantly increased over recent years.
Daniel Nicklin   +1 more
doaj   +1 more source

History-dependent friction and slow slip from time-dependent microscopic junction laws studied in a statistical framework [PDF]

open access: yes, 2014
To study the microscopic origins of friction, we build a framework to describe the collective behaviour of a large number of individual micro-junctions forming a macroscopic frictional interface. Each micro-junction can switch in time between two states:
Malthe-Sørenssen, Anders   +4 more
core   +3 more sources

The Complexity of Codiagnosability for Discrete Event and Timed Systems [PDF]

open access: yes, 2010
In this paper we study the fault codiagnosis problem for discrete event systems given by finite automata (FA) and timed systems given by timed automata (TA).
D. Kozen   +16 more
core   +3 more sources

Influence of substrate annealing on inducing Ti3+ and oxygen vacancy in TiO2 thin films deposited via RF magnetron sputtering [PDF]

open access: yes, 2018
Nano-crystalline TiO2 has been prepared by RF magnetron sputtering at varied substrate temperatures ranging from 200 to 500 °C. The alteration of oxygen and titanium atom in TiO2 at uppermost surface is clearly observed on the effect of annealing ...
Abdullah, S.A.   +6 more
core   +1 more source

Physicochemical, potential nutritional, antioxidant and health properties of sesame seed oil: a review

open access: yesFrontiers in Nutrition, 2023
Sesame (Sesanum indicum L.) is one of the primary annual oilseeds grown in Africa and Asia. Sesame seed oil (SSO) is of great economic and human nutrition interest worldwide. Due to its composition in phytochemical antioxidants and profile in unsaturated
Edwige Bahanla Oboulbiga   +10 more
doaj   +1 more source

Facile preparation of β-/γ-MgH2 nanocomposites under mild conditions and pathways to rapid dehydrogenation [PDF]

open access: yes, 2016
A magnesium hydride composite with enhanced hydrogen desorption kinetics can be synthesized via a simple wet chemical route by ball milling MgH2 with LiCl as an additive at room temperature followed by tetrahydrofuran (THF) treatment under an Ar ...
Gregory, Duncan   +3 more
core   +1 more source

On the k-Symplectic, k-Cosymplectic and Multisymplectic Formalisms of Classical Field Theories [PDF]

open access: yes, 2007
The objective of this work is twofold: First, we analyze the relation between the k-cosymplectic and the k-symplectic Hamiltonian and Lagrangian formalisms in classical field theories.
A. Awane   +36 more
core   +3 more sources

Effect of strontium and cooling rate upon eutectic temperatures of A319 aluminum alloy [PDF]

open access: yes, 2004
DTA analysis was used to investigate the solidification reactions of alloy A319 with either 12 or 136 ppm of Sr added. Strontium does not affect primary solidification of (Al) dendrites but modifies the kinetics of the (Al)–Si eutectic. The effects of Sr
Boettinger   +11 more
core   +2 more sources

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