Void Formation during Diffusion – Two-Dimensional Approach

2016 ◽  
Vol 35 (6) ◽  
pp. 629-633 ◽  
Author(s):  
Bartek Wierzba
Keyword(s):  
Solid State ◽  
Evolution Equation ◽  
Diffusion Couple ◽  
Diffusion Flux ◽  
Void Formation ◽  
Two Dimensional ◽  
Dimensional Approach ◽  
Vacancy Migration ◽  
Interdiffusion Process

AbstractThe final set of equations defining the interdiffusion process in solid state is presented. The model is supplemented by vacancy evolution equation. The competition between the Kirkendall shift, backstress effect and vacancy migration is considered. The proper diffusion flux based on the Nernst–Planck formula is proposed. As a result, the comparison of the experimental and calculated evolution of the void formation in the Fe-Pd diffusion couple is shown.

Shifting perspectives: method, media and the complex image

1998 ◽  
Vol 10 (1-3) ◽  
pp. 100-108 ◽  
Author(s):  
Alicia Colson ◽  
Ross Parry
Keyword(s):  
Image Processing ◽  
Three Dimensional ◽  
Geographical Location ◽  
Spatial Relationship ◽  
Two Dimensional ◽  
Dimensional Approach ◽  
Complex Image ◽  
Cultural Resonance

This article argues that the analysis of a threedimensional image demanded a three-dimensional approach. The authors realise that discussions of images and image processing inveterately conceptualise representation as being flat, static, and finite. The authors recognise the need for a fresh acuteness to three-dimensionality as a meaningful – although problematic – element of visual sources. Two dramatically different examples are used to expose the shortcomings of an ingrained two-dimensional approach and to facilitate a demonstration of how modern (digital) techniques could sanction new historical/anthropological perspectives on subjects that have become all too familiar. Each example could not be more different in their temporal and geographical location, their cultural resonance, and their historiography. However, in both these visual spectacles meaning is polysemic. It is dependent upon the viewer's spatial relationship to the artifice as well as the spirito-intellectual viewer within the community. The authors postulate that the multi- faceted and multi-layered arrangement of meaning in a complex image could be assessed by working beyond the limitations of the two-dimensional methodological paradigm and by using methods and media that accommodated this type of interconnectivity and representation.

A solid‐state electrochemiluminescence sensor based on novel two‐dimensional Ti3C2 MXene

2021 ◽  
Author(s):  
Huanhuan Xing ◽  
Hongyin Xia ◽  
Yongchao Fan ◽  
Yuan Xue ◽  
Chao Peng ◽  
...  
Keyword(s):  
Solid State ◽  
Two Dimensional

Mathematical modelling of straw combustion in a moving bed combustor: A two dimensional approach

Fuel ◽  
2013 ◽  
Vol 104 ◽  
pp. 351-364 ◽  
Author(s):  
Biljana Miljković ◽  
Ivan Pešenjanski ◽  
Marija Vićević
Keyword(s):  
Mathematical Modelling ◽  
Two Dimensional ◽  
Dimensional Approach ◽  
Moving Bed ◽  
Straw Combustion
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