Publications associées à Knudsen diffusion

Activated carbon fibers modified by metal oxide as effective structured adsorbents for acetaldehyde

Novel efficient adsorbents for acetaldehyde removal from diluted gas streams (similar to 1300 ppmv) have been developed. The adsorbents combine the properties of activated carbon fibers (ACF) and nanoparticles (NPs) of basic metal oxides (La2O3, CaO, MgO, ...

Elsevier Science Bv2015

Microwave gas breakdown in elliptical waveguides

Michael Mattes, Francisco Edén Sorolla Rosario, Ioannis Koufogiannis

This paper analyzes the microwave gas discharge within elliptical waveguides excited by the fundamental mode. The Rayleigh-Ritz method has been applied to solve the continuity equation. The eigenvalue problem defined by the breakdown condition has been sol ...

Amer Inst Physics2014

Quasi-elastic neutron scattering in the multi-GPa range and its application to liquid water

Livia Eleonora Bove Kado

We present a method which allows quasi-elastic neutron scattering (QENS) at multi-GPa pressures, i.e., pressure conditions which are an order of magnitude higher than possible with QENS till now. The technique uses an opposed-anvil geometry with a sample c ...

Amer Inst Physics2013

Interface structure and flux laws in a natural double-diffusive layering

Alfred Johny Wüest, Martin Schmid

The diffusive regime of double-diffusive convection generates staircases consisting of thin high-gradient interfaces sandwiched between convectively mixed layers. Simultaneous microstructure measurements of both temperature and conductivity from the stairc ...

Amer Geophysical Union2013

Incremental Model Identification of Fluid-Fluid Reaction Systems – Dynamic Accumulation and Reactions in the Diffusion Layer

Dominique Bonvin, Julien Léo Billeter, Sriniketh Srinivasan

The identification of kinetic models is an important step for the monitoring, control and optimization of industrial processes. This is particularly the case for highly competitive business sectors such as chemical and pharmaceutical industries, where the ...

2013

Tailoring Bimetallic Alloy Surface Properties by Kinetic Control of Self-Diffusion Processes at the Nanoscale

Alfonso Baldereschi, Michele Rizzi

Achieving control of the nanoscale structure of binary alloys is of paramount importance for the design of novel materials with specific properties, leading to, for example, improved reaction rates and selectivity in catalysis, tailored magnetic behavior i ...

Amer Chemical Soc2012

Simulations of a double-diffusive interface in the diffusive convection regime

Alfred Johny Wüest

Three-dimensional direct numerical simulations are performed that give us an in-depth account of the evolution and structure of the double-diffusive interface. We examine the diffusive convection regime, which, in the oceanographically relevant case, consi ...

Cambridge University Press2012

Stability of a Double-Diffusive Interface in the Diffusive Convection Regime

Alfred Johny Wüest

In this paper, the authors explore the conditions under which a double-diffusive interface may become unstable. Focus is placed on the case of a cold, freshwater layer above a warm, salty layer [i.e., the diffusive convection (DC) regime]. The "diffusive i ...

Amer Meteorological Soc2012

Link between Alginate Reaction Front Propagation and General Reaction Diffusion Theory

Jürgen Brugger, Philippe Renaud, Thomas Michael Braschler, Kristopher Pataky, Ana Valero, Ludovica Colella

We provide a common theoretical framework reuniting specific models for the Ca2+-alginate system and general reaction diffusion theory along with experimental validation on a microfluidic chip. As a starting point, we use a set of nonlinear, partial differ ...

2011

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Knudsen diffusion

Activated carbon fibers modified by metal oxide as effective structured adsorbents for acetaldehyde

Microwave gas breakdown in elliptical waveguides

High-Resolution Tracking of Single-Molecule Diffusion in Membranes by Confocalized and Spatially Differentiated Fluorescence Photon Stream Recording

Quasi-elastic neutron scattering in the multi-GPa range and its application to liquid water

Interface structure and flux laws in a natural double-diffusive layering

Incremental Model Identification of Fluid-Fluid Reaction Systems – Dynamic Accumulation and Reactions in the Diffusion Layer

Tailoring Bimetallic Alloy Surface Properties by Kinetic Control of Self-Diffusion Processes at the Nanoscale

Simulations of a double-diffusive interface in the diffusive convection regime

Stability of a Double-Diffusive Interface in the Diffusive Convection Regime

Link between Alginate Reaction Front Propagation and General Reaction Diffusion Theory

Graph Chatbot

Chattez avec Graph Search

Stability of a Double-Diffusive Interface in the Diffusive Convection Regime

Incremental Model Identification of Fluid-Fluid Reaction Systems – Dynamic Accumulation and Reactions in the Diffusion Layer

Tailoring Bimetallic Alloy Surface Properties by Kinetic Control of Self-Diffusion Processes at the Nanoscale

Activated carbon fibers modified by metal oxide as effective structured adsorbents for acetaldehyde

Microwave gas breakdown in elliptical waveguides

Simulations of a double-diffusive interface in the diffusive convection regime

High-Resolution Tracking of Single-Molecule Diffusion in Membranes by Confocalized and Spatially Differentiated Fluorescence Photon Stream Recording

Interface structure and flux laws in a natural double-diffusive layering

Quasi-elastic neutron scattering in the multi-GPa range and its application to liquid water

Link between Alginate Reaction Front Propagation and General Reaction Diffusion Theory