Results 61 to 70 of about 679,441 (311)

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

Advanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong, Zhangbin Ji, Luke Haworth, Yihao Guo, Jaime del Moral, Stefan Jacob, Ana Borras, Agustin R. Gonzalez‐Elipe, Jikai Zhang, Jian Zhou, Glen McHale, Yong‐Qing Fu   +11 more
wiley   +1 more source

Compact Circular/Linear Polarization Dual-Band Prime-Focus Feed for Space Communication

International Journal of Antennas and Propagation, 2012
We propose a novel, compact, prime-focus antenna feed for space communication. The feed requires full-wave simulator optimization for a given parabolic reflector and is designed to operate simultaneously on two bands, offering LHC/RHC polarizations for ...
Rastislav Galuscak, Pavel Hazdra, Milos Mazanek   +2 more
doaj   +1 more source

Tailoring the Properties of 2D Nanomaterial‐Polymer Composites for Electromagnetic Interference Shielding and Energy Storage by 3D Printing—A Review

Advanced Engineering Materials, EarlyView.
This article critically reviews the recent advances in the development of nanomaterial‐based inks derived from 2D nanomaterials and how the addition of 2D nanomaterials alters the rheology of different polymers for 3D printing. The review further explores the application of 3D‐printed structures in the electronics, sensor, and energy sectors.
Amanuel Gebrekrstos, Tanyaradzwa S. Muzata, Anastasia Elias, Suprakas Sinha Ray   +3 more
wiley   +1 more source

Demonstration of a Hybrid FSO/VLC Link for the Last Mile and Last Meter Networks

IEEE Photonics Journal, 2019
In this paper, a hybrid free-space optical and visible light communication (FSO/VLC) system was experimentally demonstrated as a solution to overcome the last mile and last meter access networks bandwidth bottleneck. We evaluate the system performance of
Petr Pesek, Stanislav Zvanovec, Petr Chvojka, Zabih Ghassemlooy, Paul Anthony Haigh   +4 more
doaj   +1 more source

Angular momentum and torque described with the complex octonion

, 2014
The paper aims to adopt the complex octonion to formulate the angular momentum, torque, and force etc in the electromagnetic and gravitational fields.
Weng, Zi-Hua
core   +2 more sources

Elastic‐Wave Propagation in Chiral Metamaterials: A Couple‐Stress Theory Perspective

Advanced Engineering Materials, EarlyView.
The intrinsic chirality of chiral metamaterials renders an effective medium based on the classical continuum theory ineffective for predicting their acoustic activity. This limitation is addressed in the present study by employing augmented asymptotic homogenization to derive a couple‐stress‐based effective medium, enabling accurate predictions in the ...
Shahin Eskandari, Wanmin Xu, Slight Chen, Bilen Emek Abali, Valérie Orsat, Abdolhamid Akbarzadeh   +5 more
wiley   +1 more source

Upper bounds on absorption and scattering

New Journal of Physics, 2020
A general framework for determining fundamental bounds in nanophotonics is introduced in this paper. The theory is based on convex optimization of dual problems constructed from operators generated by electromagnetic integral equations.
Mats Gustafsson, Kurt Schab, Lukas Jelinek, Miloslav Capek   +3 more
doaj   +1 more source

Electromagnetic field with constraints and Papapetrou equation

, 2006
It is shown that geometric optical description of electromagnetic wave with account of its polarization in curved space-time can be obtained straightforwardly from the classical variational principle for electromagnetic field.
Muminov, A. T., Turakulov, Z. Ya.
core   +1 more source

Green Multicomponent Alloys with Excellent Multifunctional and Mechanical Properties

Advanced Engineering Materials, EarlyView.
A sustainable strategy for developing multifunctional green multicomponent alloys (MCAs) using cheap scrap materials is demonstrated. The developed green MCAs with disordered–ordered structures enable a joint regulation of dislocation behavior, scattering of conduction electrons, and motion of magnetic domain walls, leading to high strength and ...
Ronggen Gong, Qiankun Yang, Weisong Wu, Penghua Ge, Shuya Zhu, Wei Zhang, Dingshun Yan, Zhiming Li   +7 more
wiley   +1 more source

Design of One-Eighth Spherical Dielectric Resonator Antenna for 5G Applications

IEEE Access, 2020
A one-eighth spherical surface dielectric resonator antenna (OESS-DRA) is proposed first time. To analyze this thin shell structure, electromagnetic fields distribution is discussed by using the Hertz vector and boundary conditions.
Zhiwei Song, Hongxing Zheng, Mengjun Wang, Erping Li, Yongjian Li   +4 more
doaj   +1 more source