Fourier Versus Non-Fourier Heat Conduction in Materials With a Nonhomogeneous Inner Structure

1999 ◽  
Vol 122 (2) ◽  
pp. 363-365 ◽  
Author(s):  
H. Herwig ◽  
K. Beckert

Distinct non-Fourier behavior in terms of finite propagation velocity and a hyperbolic wave like character of heat conduction has been reported for certain materials in several studies published recently. However, there is some doubt concerning these findings. The objective of this note is to present experimental evidence for a perfectly Fourier-like behavior of heat conduction in those materials with nonhomogeneous inner structure that have been under investigation in the other studies. This controversy needs to be settled in order to understand the physics of heat conduction in these materials. [S0022-1481(00)00102-X]

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Aaron Braver ◽  
Wm. G. Bennett

AbstractWhile a number of phonologists assume that phonotactics can provide clues to abstract morphological information, this possibility has largely gone unconsidered in work on Bantu noun classes. We present experimental evidence from isiXhosa (a Bantu language of the Nguni family, from South Africa), showing that speakers make use of root phonotactics when assigning noun classes to nonce words. Nouns in Xhosa bear class-indicating prefixes, but some of these prefixes are homophonous – and therefore ambiguous. Our findings show that when speakers are presented with words that have prefixes ambiguous between two classes, phonotactic factors can condition them to treat the nouns as one class or the other. This suggests that noun class (and other abstract morphological information) is not only stored in the lexicon, but is also redundantly indicated by phonotactic clues.


2005 ◽  
Vol 127 (2) ◽  
pp. 189-193 ◽  
Author(s):  
Paul J. Antaki

This work uses the “dual phase lag” (DPL) model of heat conduction to offer a new interpretation for experimental evidence of non-Fourier conduction in processed meat that was interpreted previously with hyperbolic conduction. Specifically, the DPL model combines the wave features of hyperbolic conduction with a diffusion-like feature of the evidence not captured by the hyperbolic case. In addition, comparing the new interpretation to Fourier-based alternatives suggests that further study of all the interpretations could help advance the understanding of conduction in the processed meat and other biological materials such as human tissue.


2021 ◽  
Vol 6 (1) ◽  
pp. 556
Author(s):  
Alexandros Kalomoiros ◽  
Florian Schwarz

The role of linear order for presupposition projection is a key theoretical question, but the empirical status of (a-)symmetries in projection from various connectives remains controversial. We present experimental evidence that presupposition projection from disjunction is symmetric. 'Bathroom disjunctions', where either disjunct seems able to support a presupposition in the other if its negation entails it, have been argued to be evidence for symmetric projection; but there are alternative theoretical options. Adapting the paradigm of Mandelkern et al. (2020) for projection from conjunction, our experimental data supports the view that we are dealing with genuinely symmetric projection from disjunction. This contrasts with Mandelkern et al.'s findings for asymmetric projection from conjunction, and thus provides evidence for variation in projection (a-)symmetry across connectives, contra accounts proposing general accounts predicting uniform asymmetry effects due to left-to-right processing (e.g. Schlenker 2009).


2021 ◽  
pp. 000276422199675
Author(s):  
Fernando Aguiar ◽  
María Álvarez ◽  
Luis Miller

What individual characteristics predict inequality acceptance? Previous literature has focused on economic and sociological determinants of accepting inequalities. Here, we present experimental evidence of one individual correlate of inequality acceptance: the personality trait known as locus of control. In our study, inequality is induced experimentally through the exogenous assignment to one of two experimental treatments. In one treatment, initial inequalities depend on individual performance in a previous real-effort task, that is, they are earned through effort, while in the other they are randomly determined. We report that people who show an internal locus of control (the belief that life’s outcomes are under one’s control) are significantly more likely to accept both arbitrary and effort-based inequalities, although they accept the latter more often.


2016 ◽  
Vol 63 (1) ◽  
pp. 129-144
Author(s):  
Mohammad Javad Noroozi ◽  
Seyfolah Saedodin ◽  
Davood Domiri Ganji

Abstract The effect of laser, as a heat source, on a one-dimensional finite body was studied in this paper. The Cattaneo-Vernotte non-Fourier heat conduction model was used for thermal analysis. The thermal conductivity was assumed temperature-dependent which resulted in a non-linear equation. The obtained equations were solved using the approximate-analytical Adomian Decomposition Method (ADM). It was concluded that the non-linear analysis is important in non-Fourier heat conduction problems. Significant differences were observed between the Fourier and non-Fourier solutions which stresses the importance of non-Fourier solutions in the similar problems.


Sign in / Sign up

Export Citation Format

Share Document