A simple diffusion model for the growth kinetics of γ′ iron nitride on the pure iron substrate

2005 ◽  
Vol 242 (3-4) ◽  
pp. 369-374 ◽  
Author(s):  
M. Keddam ◽  
M.E. Djeghlal ◽  
L. Barrallier
Keyword(s):  
Diffusion Model ◽  
Growth Kinetics ◽  
Pure Iron ◽  
Iron Nitride ◽  
Simple Diffusion ◽  
Simple Diffusion Model ◽  
Kinetics Of

scholarly journals A Simple Diffusion Model for Psychometric Analyses

2019 ◽  
Author(s):  
Udo Boehm ◽  
Maarten Marsman ◽  
Han van der Maas ◽  
Gunter Maris
Keyword(s):  
Diffusion Model ◽  
Functional Form ◽  
Response Times ◽  
Simple Diffusion ◽  
Regression Framework ◽  
Psychometric Analyses ◽  
Computer Based ◽  
Simple Diffusion Model ◽  
Source Of Information ◽  
Latent Regression

The emergence of computer-based assessments has made response times, in addition to response accuracies, available as a source of information about test takers’ latent abilities. The predominant approach to jointly account for response times and accuracies are statistical models. Substantive approaches such as the diffusion model, on the other hand, have been slow to gain traction due to their unwieldy functional form. In the present work we show how a single simplifying assumption yields a highly tractable diffusion model. This simple diffusion model is straightforward to analyse using Gibbs sampling and can be readily extended with a latent regression framework. We demonstrate the superior computational efficiency of our model compared to the standard diffusion model in a simulation study and showcase the theoretical merit of our model in an example application.

A Simple Diffusion Model of Surface Modification by Plasma

1997 ◽  
Vol 159 (2) ◽  
pp. 405-416 ◽  
Author(s):  
V. I. Dimitrov ◽  
J. D'Haen ◽  
G. Knuyt ◽  
C. Quaeyhaegens ◽  
L. M. Stals
Keyword(s):  
Surface Modification ◽  
Diffusion Model ◽  
Simple Diffusion ◽  
Simple Diffusion Model

Growth Kinetics of Fe Boride Layers: Application of a Diffusion Model

2008 ◽  
Vol 273-276 ◽  
pp. 318-322 ◽  
Author(s):  
Mourad Keddam
Keyword(s):  
Diffusion Model ◽  
Growth Kinetics ◽  
Thermodynamic Data ◽  
Boron Content ◽  
Kinetic Constant ◽  
Phase Interface ◽  
Layer Thickness Ratio ◽  
Kinetics Of ◽  
Good Agreement ◽  
Kinetics And Thermodynamic

In the present work, a kinetic study based on a diffusion model was performed by use of both kinetics and thermodynamic data as input parameters, it was possible to evaluate the kinetic constant at each phase interface for a biphase configuration FeB and Fe2B grown over the surfaces of Armco Fe and Fe-Cr binary alloys at 0.5 and 4wt. %Cr by powder- pack boriding. The simulated values of the kinetics constants by the model were compared to those found in the literature and a good agreement was observed. For the Fe-4wt. %Cr alloy, it was found by simulation that the layer thickness ratio between the FeB and Fe2B phases is very sensitive to the increase of temperature and surface boron content.

A simple model for the growth kinetics of Fe2B iron boride on pure iron substrate

2010 ◽  
Vol 256 (10) ◽  
pp. 3128-3132 ◽  
Author(s):  
M. Keddam ◽  
M. Ortiz-Domínguez ◽  
I. Campos-Silva ◽  
J. Martínez-Trinidad
Keyword(s):  
Simple Model ◽  
Growth Kinetics ◽  
Pure Iron ◽  
Iron Boride ◽  
Kinetics Of

A simple diffusion model showing anomalous scaling

2008 ◽  
Vol 15 (8) ◽  
pp. 082308 ◽  
Author(s):  
G. Rowlands ◽  
J. C. Sprott
Keyword(s):  
Diffusion Model ◽  
Anomalous Scaling ◽  
Simple Diffusion ◽  
Simple Diffusion Model

A SIMPLE DIFFUSION MODEL FOR MEDIUM-TERM CROSS-SHORE BEACH MORPHOLOGY EVOLUTION

2011 ◽  
Author(s):  
HARSHINIE KARUNARATHNA ◽  
DOMINIC E. REEVE ◽  
JOSE M. HORRILLO-CARABALLO ◽  
MARK SPIVACK
Keyword(s):  
Diffusion Model ◽  
Morphology Evolution ◽  
Medium Term ◽  
Simple Diffusion ◽  
Beach Morphology ◽  
Simple Diffusion Model

The Powder-Pack Nitriding Process: Growth Kinetics of Nitride Layers on Pure Iron

2015 ◽  
Vol 24 (9) ◽  
pp. 3241-3250 ◽  
Author(s):  
I. Campos-Silva ◽  
M. Ortiz-Dominguez ◽  
M. Elias-Espinosa ◽  
R. C. Vega-Morón ◽  
D. Bravo-Bárcenas ◽  
...  
Keyword(s):  
Growth Kinetics ◽  
Pure Iron ◽  
Nitriding Process ◽  
Nitride Layers ◽  
Kinetics Of
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