Results 31 to 40 of about 524,074 (324)

Structural Health Monitoring: Latest Applications and Data Analysis

Applied Sciences, 2023
Structural health monitoring (SHM) is focused on the systematic monitoring of the state of structures to determine their safety, dependability, and durability [...]
Grzegorz Psuj, Barbara Szymanik
doaj   +1 more source

Tetrads in Geometrodynamics

, 2004
A new tetrad is introduced within the framework of geometrodynamics for non-null electromagnetic fields. This tetrad diagonalizes the electromagnetic stress-energy tensor and allows for maximum simplification of the expression of the electromagnetic ...
Alcides Garat, Carmeli M., Stephani H., Weinberg S.   +3 more
core   +1 more source

Transformation media that rotate electromagnetic fields [PDF]

, 2007
We suggest a way to manipulate electromagnetic wave by introducing a rotation mapping of coordinates that can be realized by a specific transformation of permittivity and permeability of a shell surrounding an enclosed domain. Inside the enclosed domain,
C. T. Chan, Greenleaf A., Huanyang Chen, Schurig D.   +3 more
core   +3 more sources

500 GHz plasmonic Mach-Zehnder modulator enabling sub-THz microwave photonics

APL Photonics, 2019
Broadband electro-optic intensity modulators are essential to convert electrical signals to the optical domain. The growing interest in terahertz wireless applications demands modulators with frequency responses to the sub-terahertz range, high power ...
Maurizio Burla, Claudia Hoessbacher, Wolfgang Heni, Christian Haffner, Yuriy Fedoryshyn, Dominik Werner, Tatsuhiko Watanabe, Hermann Massler, Delwin L. Elder, Larry R. Dalton, Juerg Leuthold   +10 more
doaj   +1 more source

Thin Dielectric Layers Evaluation Using Tunable Split-Ring Resonator Based Metasurface in THz Frequency Range

Applied Sciences, 2022
The paper presents the evaluation of thin dielectric layers using a tunable split-ring resonator-based metasurface in the THz frequency range. Tunable unit cells of a metasurface allow its resonant frequency variation using some external excitation. This
Paulina Gora, Przemyslaw Lopato
doaj   +1 more source

Fractional Integro-Differential Equations for Electromagnetic Waves in Dielectric Media

, 2011
We prove that the electromagnetic fields in dielectric media whose susceptibility follows a fractional power-law dependence in a wide frequency range can be described by differential equations with time derivatives of noninteger order.
A. A. Kilbas, A. A. Stanislavsky, A. Carpinteri, A. K. Jonscher, A. K. Jonscher, A. K. Jonscher, G. M. Zaslavsky, P. Debye, R. R. Nigmatullin, R. R. Nigmatullin, R. R. Nigmatullin, S. G. Samko, V. E. Tarasov, V. E. Tarasov, V. V. Novikov, Y. Yilmaz   +15 more
core   +1 more source

The plasmonic BTO-on-SiN platform – beyond 200 GBd modulation for optical communications

Light: Science & Applications
An integrated photonics platform that offers high-speed modulators in addition to low-loss and versatile passive components is highly sought after for different applications ranging from AI to next-generation Tbit/s links in optical fiber communication ...
Manuel Kohli, Daniel Chelladurai, Laurenz Kulmer, Tobias Blatter, Yannik Horst, Killian Keller, Michael Doderer, Joel Winiger, David Moor, Andreas Messner, Tatiana Buriakova, Clarissa Convertino, Felix Eltes, Yuriy Fedoryshyn, Ueli Koch, Juerg Leuthold   +15 more
doaj   +1 more source

Classification of Grain-Oriented Electrical Steel Sheets by Magnetic Barkhausen Noise Using Time-Frequency Analysis and Selected Machine Learning Algorithms

Applied Sciences, 2022
In this paper, a combination of Magnetic Barkhausen Noise (MBN) and several classical machine learning (ML) methods were used to evaluate both the grade and the magnetic directions of conventional and high grain oriented electrical sheets subjected to ...
Michal Maciusowicz, Grzegorz Psuj
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Controlling photothermoelectric directional photocurrents in graphene with over 400 GHz bandwidth

Nature Communications
Photodetection in the near- and mid-infrared spectrum requires a suitable absorbing material able to meet the respective targets while ideally being cost-effective.
Stefan M. Koepfli, Michael Baumann, Robin Gadola, Shadi Nashashibi, Yesim Koyaz, Daniel Rieben, Arif Can Güngör, Michael Doderer, Killian Keller, Yuriy Fedoryshyn, Juerg Leuthold   +10 more
doaj   +1 more source