Results 81 to 90 of about 4,218 (183)

Study on Impurity Particle Detection in Transformer Oil Based on Microflow Imaging Method

open access: yesHigh Voltage, EarlyView.
ABSTRACT The concentration of particles in transformer oil has a significant influence on its electrical performance, making oil cleanliness a critical parameter in the operation and maintenance of power transformers. However, the light obstruction (LO) method recommended by current standards has inherent limitations, including low sensitivity to ...
Chen Chen   +6 more
wiley   +1 more source

Boltzmann Entropy, the Holographic Bound and Newtonian Cosmology

open access: yesProceedings, 2017
The holographic principle sets an upper bound on the total (Boltzmann) entropy content of the Universe at around 10 123 k B ( k B being Boltzmann’s constant).
Pedro Fernández De Córdoba   +1 more
doaj   +1 more source

Improving ARTs: Microfluidics as a Tool for Sperm Selection

open access: yesAndrology, EarlyView.
ABSTRACT Sperm selection is a critical step in assisted reproductive technology (ART), as sperm quality directly influences embryo quality. In vivo, the female reproductive tract imposes several physical and physiological barriers that favors only the most optimal spermatozoa reaching the fertilization site.
A. Pérez‐Gómez   +7 more
wiley   +1 more source

Entanglement Entropy of AdS Black Holes

open access: yesEntropy, 2010
We review recent progress in understanding the entanglement entropy of gravitational configurations for anti-de Sitter gravity in two and three spacetime dimensions using the AdS/CFT correspondence.
Maurizio Melis, Mariano Cadoni
doaj   +1 more source

Where the Magician Lives: An Ontological Problem in the Anthropology of Magic

open access: yesAnthropology of Consciousness, EarlyView.
ABSTRACT The purpose of the present study is to outline a theoretical framework in which the anthropologist can introduce a naturalistic approach, which will not be conflicted with scientific discourses, into his ethnographic work. First of all, I argue that the principles of magic can be understood as a part of social cognitive causal chains, based on
Keishi Okamoto
wiley   +1 more source

Measuring Lead Userness: Development and Validation of a Hierarchical Scale

open access: yesCreativity and Innovation Management, Volume 34, Issue 4, Page 944-962, December 2025.
ABSTRACT Lead user theory has gained traction in both academia and practice, given that involving lead users (LUs) can yield more innovative and commercially successful products. Yet, measurement inconsistencies have hindered consensus on how to reliably assess lead userness.
Moritz Paulus   +3 more
wiley   +1 more source

A Thermodynamic Approach to Holographic Dark Energy

open access: yesAdvances in High Energy Physics, 2017
We propose a method to relate the holographic minimal information density to de Broglie’s wavelength at a given universe temperature T. To figure this out, we assume that the thermal length of massive and massless constituents represents the cut-off ...
Orlando Luongo
doaj   +1 more source

Graphene oxide–modified fluoridated varnish promotes mineral recovery in demineralized bovine enamel: An in vitro study

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract This in vitro study evaluated the efficacy of an experimental fluoridated varnish modified with graphene oxide (GO) nanoparticles in arresting initial caries lesion progression and promoting mineral recovery in demineralized bovine enamel.
Mariana Souza Rodrigues   +5 more
wiley   +1 more source

Color liquid crystal grating based color holographic 3D display system with large viewing angle

open access: yesLight: Science & Applications
Holographic 3D display is highly desirable for numerous applications ranging from medical treatments to military affairs. However, it is challenging to simultaneously achieve large viewing angle and high-fidelity color reconstruction due to the ...
Di Wang   +8 more
doaj   +1 more source

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