Results 161 to 170 of about 2,136,561 (347)

Comparative Analysis of Graded‐Index and Quarter‐Wave One‐Dimensional Photonic Crystal Filters for GaSb Thermophotovoltaic Cells

open access: yesEnergy Technology, EarlyView.
The efficiency and output power of thermophotovoltaic systems can be improved by using one‐dimensional photonic crystal optical filters with graded index profiles. Using a filter with a graded index profile increases the system efficiency from 15.8 to 27%.
Mehran Sepah Mansoor   +2 more
wiley   +1 more source

MHD Heat Transfer Enhancement in a Curvilinear Enclosure With Oscillating Wall and Nano‐Encapsulated PCM: A Fluid‐Structure Interaction Analysis

open access: yesHeat Transfer, EarlyView.
ABSTRACT Thermal management systems integrating phase change materials face challenges in maximizing heat transfer efficiency for electronics cooling and energy storage applications. This study addresses the research gap regarding fluid‐structure interaction and magnetohydrodynamic effects on nano‐encapsulated PCM performance in complex geometries.
Mohammed Azeez Alomari   +4 more
wiley   +1 more source

On the Maxwell supergravity and flat limit in 2 + 1 dimensions

open access: yesPhysics Letters B, 2018
The construction of the three-dimensional Chern–Simons supergravity theory invariant under the minimal Maxwell superalgebra is presented. We obtain a supergravity action without cosmological constant term characterized by three coupling constants.
Patrick Concha   +2 more
doaj  

Raman Study of the Slobodka Ordinary Chondrite

open access: yesJournal of Raman Spectroscopy, EarlyView.
The texture and mineral chemistry of Slobodka are most consistent with L4 chondrites, exhibiting strong shock metamorphism characteristic of shock stage S4, including irregular and planar fractures, undulatory extinction, and mosaicism in olivine, pyroxene, and plagioclase.
M. Simopoulou   +10 more
wiley   +1 more source

Switching on Dark Excitons in WSe2 Monolayer at Room Temperature with Plasmonic Au Nanodisk‐on‐Mirror Cavities

open access: yesLaser &Photonics Reviews, EarlyView.
Flexible control over the emission intensity of dark excitons in WSe2 monolayer is achieved using high‐quality, high‐performance plasmonic Au nanodisk‐on‐mirror nanocavities that possess in‐plane magnetic plasmon resonance and out‐of‐plane toroidal plasmon resonance.
Xinyue Xia   +7 more
wiley   +1 more source

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