Results 81 to 90 of about 10,102,559 (209)

The validity of the extended energy principle [PDF]

, 1994
A recent analysis of plasma stability based on modifications of the extended energy principle for magnetohydrodynamic stability led to conclusions that are too optimistic. The original interpretation of this principle is indeed applicable.
Kulsrud, R. M., Chance, M. S., Johnson, J. L.   +2 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

A large deviation principle for the free energy of random Gibbs measures with application to the REM

, 2007
A Large Deviation Principle (LDP) for the free energy of random Gibbs measures is proved in the form of a general LDP for random log-Laplace integrals. The principle is then applied to an extended version of the Random Energy Model (REM).
MORANDIN, Francesco, Morandin, F., FEDRIGO M, FLANDOLI, FRANCO, FEDRIGO, Mattia, Flandoli, F., MORANDIN F., Fedrigo, M., FLANDOLI F   +8 more
core   +1 more source

Cultured Cortical Neurons Can Perform Blind Source Separation According to the Free-Energy Principle. [PDF]

, 2015
Blind source separation is the computation underlying the cocktail party effect--a partygoer can distinguish a particular talker's voice from the ambient noise.
Yasuhiko Jimbo, Yasuhiko Jimbo (199369), Takuya Isomura, Kiyoshi Kotani (199384), Takuya Isomura (839119), Kiyoshi Kotani, Isomura Takuya, Jimbo Yasuhiko, Kotani Kiyoshi   +8 more
core   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

Advanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik, Liliana I. Duarte, Malgorzata G. Makowska, Roland Brütsch, Andrej Bullemer, Ana Diaz, Mirko Holler, Andreas Menzel, Johannes Bertsch, Pavel Trtik   +9 more
wiley   +1 more source

Free Energy is Nothing(ness)

I draw a parallel in this essay between Jean-Paul Sartre’s existentialism and the Free Energy Principle (FEP), a basic physical property of life on earth. I show how the three elements of Sartre’s theory fit elegantly with three elements of a FEP view of
Jesse Hoey
core   +1 more source

A Psychovisual Quality Metric in Free-Energy Principle

, 2011
In this paper, we propose a new psychovisual quality metric of images based on recent developments in brain theory and neuroscience, particularly the free-energy principle.
Wu, Xiaolin., Yang, Xiaokang., Lin, Weisi, Zhai, Guangtao., Zhang, Wenjun., null Guangtao Zhai, null Wenjun Zhang, null Xiaolin Wu, null Weisi Lin, null Xiaokang Yang   +9 more
core   +1 more source

ICU Delirium as a Failure of Predictive Synchronization: A Two-Agent Active Inference Model

Entropy
This paper presents a computational model of delirium in the Intensive Care Unit (ICU), in which delirium is defined as the endpoint of a self-reinforcing cycle of predictive failure between two bidirectionally coupled agents: the patient and the ICU ...
Luca M. Possati
doaj   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

Advanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti, Andreas Stark, Roja Rani Korrayi, Florian Pyczak, Georg Hasemann   +4 more
wiley   +1 more source