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Publications associées (520)

An Evaluation of Diversification Techniques

Karl Aberer, Quoc Viet Hung Nguyen, Thành Tâm Nguyên

Diversification is a method of improving user satisfaction by increasing the variety of information shown to user. Due to the lack of a precise definition of information variety, many diversification techniques have been proposed. These techniques, however ...

Springer2015

Screening Materials Relevant for Energy Technologies

Berend Smit

In this short review, some recent advances are discussed in the development of computational techniques to perform large-scale screening of materials for energy-related applications. We focus on carbon capture and methane storage in different classes of na ...

Schweizerische Chemische Gesellschaft2015

Electromagnetic turbulence simulations of the tokamak scrape-off layer

Federico David Halpern

We present the newest version of the Global Braginskii Solver (GBS), which addresses tokamak boundary turbulence. GBS now employs a 3D cartesian communicator and a parallel multigrid Poisson/Ampere solver, achieving excellent parallel scalability, and it i ...

2015

Bending Rules in Graphene Kirigami

The three-dimensional shapes of graphene sheets produced by nanoscale cut-and-join kirigami are studied by combining large-scale atomistic simulations with continuum elastic modeling. Lattice segments are selectively removed from a graphene sheet, and the ...

Amer Physical Soc2015

The collisional depolarization of OH(A (2)Sigma(+)) and NO(A (2)Sigma(+)) with Kr

Quantum beat spectroscopy has been used to measure rate coefficients at 300 K for collisional depolarization for NO(A (2)Sigma(+)) and OH(A (2)Sigma(+)) with krypton. Elastic depolarization rate coefficients have also been determined for OH(A) + Kr, and sh ...

Amer Inst Physics2014

A model to determine the optimal parameters for sustainable-energy machining in a multi-pass turning operation

Ian Anthony Stroud, Olcay Akten, Muhammad Arif

This study presents a model for the optimization of machining parameters for the minimum energy consumption in a multi-pass turning operation. The model takes into account finishing and roughing passes separately for the energy optimization followed by the ...

Professional Engineering Publishing2014

Exciton localization and drift in tailored-potential quantum nanowires

Elyahou Kapon, Alok Rudra, Justyna Szeszko

Exciton recombination dynamics in tailored-potential, site-controlled AlGaAs quantum wires (QWRs) are studied. Time-resolved photoluminescence spectra evidence exciton localization in weakly disordered "uniform" QWRs, whereas deterministic bandgap grading ...

American Institute of Physics2014

Model and design of dielectric elastomer minimum energy structures

Herbert Shea, Samuel Rosset, Jun Shintake

Fixing a prestretched dielectric elastomer actuator (DEA) on a flexible frame allows transformation of the intrinsic in-plane area expansion of DEAs into complex three-dimensional (3D) structures whose shape is determined by a configuration that minimizes ...

Institute of Physics2014

Ab Initio Molecular Dynamics Calculations versus Quantum-State- Resolved Experiments on CHD3 + Pt(111): New Insights into a Prototypical Gas−Surface Reaction

Rainer Beck, Helen Jane Chadwick, Hirokazu Ueta, Francesco Nattino

The dissociative chemisorption of methane on metal surfaces is of fundamental and practical interest, being a rate-limiting step in the steam reforming process. The reaction is best modeled with quantum dynamics calculations, but these are currently not gu ...

Amer Chemical Soc2014

Isogeometric Finite Elements With Surface Impedance Boundary Conditions

Annalisa Buffa, Rafael Vazquez Hernandez

First- and second-order surface impedance boundary conditions are introduced in the harmonic 2-D variational formulation based on the magnetic vector potential. The problem is discretized with isogeometric finite elements, a recent method that uses NURBS f ...

2014

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