scholarly journals Experimental evidence for a power law in electroencephalographic -wave dynamics

1999 ◽  
Vol 12 (2) ◽  
pp. 303-307 ◽  
Author(s):  
Y. Georgelin ◽  
L. Poupard ◽  
R. Sartène ◽  
J.C. Wallet
Keyword(s):  
Experimental Evidence ◽  
Power Law ◽  
Wave Dynamics

Experimental evidence of T/sub BD/ power-law for voltage dependence of oxide breakdown

2002 ◽  
Vol 49 (12) ◽  
pp. 2244-2253 ◽  
Author(s):  
E.Y. Wu ◽  
A. Vayshenker ◽  
E. Nowak ◽  
J. Sune ◽  
R.-P. Vollertsen ◽  
...  
Keyword(s):  
Experimental Evidence ◽  
Power Law ◽  
Voltage Dependence ◽  
Oxide Breakdown

scholarly journals The Hall–Petch effect as a manifestation of the general size effect

2016 ◽  
Vol 472 (2190) ◽  
pp. 20150890 ◽  
Author(s):  
Y. Li ◽  
A. J. Bushby ◽  
D. J. Dunstan
Keyword(s):  
Grain Size ◽  
Data Analysis ◽  
Size Effect ◽  
Experimental Evidence ◽  
Power Law ◽  
Inverse Relationship ◽  
Meta Analysis ◽  
Square Root ◽  
Dislocation Sources ◽  
General Size

The experimental evidence for the Hall–Petch dependence of strength on the inverse square-root of grain size is reviewed critically. Both the classic data and more recent results are considered. While the data are traditionally fitted to the inverse square-root dependence, they also fit well to many other functions, both power law and non-power law. There have been difficulties, recognized for half-a-century, in the inverse square-root expression. It is now explained as an artefact of faulty data analysis. A Bayesian meta-analysis shows that the data strongly support the simple inverse or ln d / d expressions. Since these expressions derive from underlying theory, they are also more readily explicable. It is concluded that the Hall–Petch effect is not to be explained by the variety of theories found in the literature, but is a manifestation of, or to be underlain by the general size effect observed throughout micromechanics, owing to the inverse relationship between the stress required and the space available for dislocation sources to operate.

Experimental evidence of power-law trapping-time distributions in porous media

1999 ◽  
Vol 60 (5) ◽  
pp. 5858-5864 ◽  
Author(s):  
German Drazer ◽  
Damián H. Zanette
Keyword(s):  
Porous Media ◽  
Experimental Evidence ◽  
Power Law ◽  
Trapping Time

How do memory modules differentially contribute to familiarity and recollection?

2019 ◽  
Vol 42 ◽  
Author(s):  
Olya Hakobyan ◽  
Sen Cheng
Keyword(s):  
Recognition Memory ◽  
Experimental Evidence ◽  
Subjective Experience ◽  
Target Article ◽  
Memory Modules ◽  
Familiarity And Recollection ◽  
Memory Contents

Abstract We fully support dissociating the subjective experience from the memory contents in recognition memory, as Bastin et al. posit in the target article. However, having two generic memory modules with qualitatively different functions is not mandatory and is in fact inconsistent with experimental evidence. We propose that quantitative differences in the properties of the memory modules can account for the apparent dissociation of recollection and familiarity along anatomical lines.

Redox Reactions in Lipid Membranes as a Model for Primordial Energy-Conserving Systems

1997 ◽  
Vol 161 ◽  
pp. 437-442
Author(s):  
Salvatore Di Bernardo ◽  
Romana Fato ◽  
Giorgio Lenaz
Keyword(s):  
Experimental Evidence ◽  
Lipid Membranes ◽  
Energy Supply ◽  
Redox Reactions ◽  
Living Systems ◽  
Asymmetric Distribution ◽  
Conservation Of Energy ◽  
Asymmetrical Distribution ◽  
Energy Conserving ◽  
Living Organisms

AbstractOne of the peculiar aspects of living systems is the production and conservation of energy. This aspect is provided by specialized organelles, such as the mitochondria and chloroplasts, in developed living organisms. In primordial systems lacking specialized enzymatic complexes the energy supply was probably bound to the generation and maintenance of an asymmetric distribution of charged molecules in compartmentalized systems. On the basis of experimental evidence, we suggest that lipophilic quinones were involved in the generation of this asymmetrical distribution of charges through vectorial redox reactions across lipid membranes.

Analysis of power law assumptions for short-period comets and Kuiper bodies

1999 ◽  
Vol 173 ◽  
pp. 289-293 ◽  
Author(s):  
J.R. Donnison ◽  
L.I. Pettit
Keyword(s):  
Power Law ◽  
Pareto Distribution ◽  
Limited Data ◽  
Short Period ◽  
Probability Plots ◽  
Exponential Probability

AbstractA Pareto distribution was used to model the magnitude data for short-period comets up to 1988. It was found using exponential probability plots that the brightness did not vary with period and that the cut-off point previously adopted can be supported statistically. Examination of the diameters of Trans-Neptunian bodies showed that a power law does not adequately fit the limited data available.

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