Results 81 to 90 of about 543,986 (337)

Effective one-dimensional description of confined diffusion biased by a transverse gravitational force

, 2011
Diffusion of point-like non interacting particles in a two-dimensional (2D) channel of varying cross section is considered. The particles are biased by a constant force in the transverse direction. We apply our recurrence mapping procedure, which enables
I. S. Gradshteyn, M. H. Jacobs, Pavol Kalinay   +2 more
core   +1 more source

Mechanisms of De‐icing by Surface Rayleigh and Plate Lamb Acoustic Waves

Advanced Engineering Materials, EarlyView.
Ice accretion impacts daily life, renewable energy generation, maintenance, and security in industries and aeronautics. Acoustic waves (AW) are a promising method for ice removal, although de‐icing mechanisms require further investigation to optimize energy efficiency.
Shilpi Pandey, Jaime del Moral, Stefan Jacob, Laura Montes, Jorge Gil‐Rostra, Alejandro Frechilla, Atefeh Karimzadeh, Victor J. Rico, Raul Kanter, Niklas Kandelin, Carmen López‐Santos, Heli Koivuluoto, Luis Angurel, Andreas Winkler, Ana Borrás, Agustin R. González‐Elipe   +15 more
wiley   +1 more source

Trans‐Conductive Melt Pool Scaling and its Implications for Parameter Transfer in Laser Powder Bed Fusion for Metals with High Thermal Diffusivity

Advanced Engineering Materials, EarlyView.
Developing process parameters for the laser‐based Powder Bed Fusion of metals can be a tedious task. Based on melt pool depth, the process parameters are transferable to different laser scan speeds. For this, understanding the melt pool scaling behavior is essential, particularly for materials with high thermal diffusivity, as a change in scaling ...
Markus Döring, Matthias Gehring, Michael Schmidt   +2 more
wiley   +1 more source

Escape Times in Fluctuating Metastable Potential and Acceleration of Diffusion in Periodic Fluctuating Potentials

, 2004
The problems of escape from metastable state in randomly flipping potential and of diffusion in fast fluctuating periodic potentials are considered. For the overdamped Brownian particle moving in a piecewise linear dichotomously fluctuating metastable ...
Agudov, Agudov, Alexander A. Dubkov, Balakrishnan, Bernardo Spagnolo, Dan, Dayan, Dubkov, Festa, Fiasconaro, Lindner, Mahato, Mahato, Malakhov, Mantegna, Mantegna, Matsumoto, Medvedev, Mielke, Mielke, Nikolay V. Agudov, Reimann, Reimann, Wackerbauer, Wackerbauer, Weaver, Xie, Zürcher   +27 more
core   +2 more sources

Analysis of Temperature and Stress Distribution on the Bond Properties of Hybrid Tailored Formed Components

Advanced Engineering Materials, EarlyView.
Hybrid materials enable high‐performance components but are challenging to process. This study explores an inductive heating concept with spray cooling for steel–aluminum specimens in a two‐step process including friction welding and cup backward extrusion.
Armin Piwek, Eduard Ortlieb, Caner‐Veli Ince, Julius Peddinghaus, Hendrik Wester, Johanna Uhe, Annika Raatz, Kai Brunotte   +7 more
wiley   +1 more source

Diffusion Processes And Interface Electron Scattering In Film Systems Based On Cu/Fe AND Fe/Cr [PDF]

Журнал нано- та електронної фізики, 2009
Investigation results of diffusion processes by the SIMS and the AES methods in Cu/Fe and Fe/Cr film systems are represented; influence of the annealing temperature on the effective thermal diffusion coefficients is studied.
I.Yu. Protsenko, A.I. Saltykova, O.V. Synashenko   +2 more
doaj  

Temperature-Dependent Diffusion of H2SO4 in Air at Atmospherically Relevant Conditions: Laboratory Measurements Using Laminar Flow Technique

Atmosphere, 2017
We report flow tube measurements of the effective sulfuric acid diffusion coefficient at ranges of different relative humidities (from ∼4 to 70%), temperatures (278, 288 and 298 K) and initial H2SO4 concentrations (from 1 × 106 to 1 × 108 molecules·cm−3).
David Brus, Lenka Škrabalová, Erik Herrmann, Tinja Olenius, Tereza Trávničková, Ulla Makkonen, Joonas Merikanto   +6 more
doaj   +1 more source

A New Model for Competitive Knowledge Diffusion in Organization Based on the Statistical Thermodynamics

Advances in Mathematical Physics, 2020
In this study, we have constructed a new model for competitive knowledge diffusion in organization based on the statistical thermodynamics of physics. In order to achieve the purpose of research, we newly define the absorptive capacity coefficient, the ...
Ju-Yong Jong, Wei-Wei Wu, Sung-Ryol So
doaj   +1 more source

A Perspective on Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed Stainless Steels

Advanced Engineering Materials, EarlyView.
This perspective article explores an innovative powder metallurgical approach to producing high‐nitrogen steels by utilizing a mixture of stainless steel and Si3N4. This mixture undergoes hot isostatic pressing followed by direct quenching. The article also examines adapting this method to laser powder bed fusion (PBF‐LB/M) to overcome nitrogen ...
Louis Becker, Felix Radtke, Jonathan Lentz, Simone Herzog, Christoph Broeckmann, Sebastian Weber   +5 more
wiley   +1 more source

Effective Coulomb Logarithm for One Component Plasma

, 2013
An expression for the effective Coulomb logarithm in one-component-plasma is proposed, which allows to extend the applicability of the classical formula for the self-diffusion coefficient to the strongly coupled regime.
Khrapak, Sergey A.
core   +1 more source