Results 51 to 60 of about 199,303 (313)

Two-Wired Active Spring-Loaded Dry Electrodes for EEG Measurements

Sensors, 2019
Dry contact electrode-based EEG acquisition is one of the easiest ways to obtain neural information from the human brain, providing many advantages such as rapid installation, and enhanced wearability.
Seungchan Lee, Younghak Shin, Anil Kumar, Kiseon Kim, Heung-No Lee   +4 more
doaj   +1 more source

Topological analysis of qualitative features in electrical circuit theory

, 2005
Several qualitative properties of equilibria in electrical circuits are analyzed in this paper. Specifically, non-singularity, hyperbolicity, and asymptotic stability are addressed in terms of the circuit topology, which is captured through the use of Modified Nodal Analysis (MNA) models.
Riaza, Ricardo, Tischendorf, Caren
openaire   +3 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Time Dependency of Current Harmonics for Switch-Mode Power Supplies

Applied Sciences, 2020
This paper presents the time-dependent variance in the current harmonics emission by power supplies during power quality measurements. Power quality problems are becoming more significant with the adoption of power electronic-based circuits such as power
Muhammad Naveed Iqbal, Lauri Kütt, Bilal Asad, Toomas Vaimann, Anton Rassõlkin, Galina L. Demidova   +5 more
doaj   +1 more source

Silicon circuits for chip‐to‐chip communications in multi‐socket server board interconnects

IET Optoelectronics, 2021
Multi‐socket server boards (MSBs) exploit the interconnection of multiple processor chips towards forming powerful cache coherent systems, with the interconnect technology comprising a key element in boosting processing performance.
Miltiadis Moralis‐Pegios, Stelios Pitris, Charoula Mitsolidou, Konstantinos Fotiadis, Hannes Ramon, Joris Lambrecht, Johan Bauwelinck, Xin Yin, Yoojin Ban, Peter De Heyn, Joris Van Campenhout, Tobias Lamprecht, Andreas Lehnman, Nikos Pleros, Theoni Alexoudi   +14 more
doaj   +1 more source

Gain- and Loss-Induced Topological Insulating Phase in a Non-Hermitian Electrical Circuit

Physical Review Applied, 2020
There have been considerable efforts devoted to the study of topological phases in certain non-Hermitian systems that possess real eigenfrequencies in the presence of gain and loss. However, it is challenging to experimentally realize such non-Hermitian topological insulators in either quantum or photonic systems, due to the difficulties in introducing
Yuanjiang Xiang, Cheng Yang, Lei Zhang, Shaojie Ma, Shaojie Ma, Tie Jun Cui, Wenlong Gao, Shuo Liu, Shuo Liu, Shuang Zhang   +9 more
openaire   +3 more sources

Observation of bulk-edge correspondence in topological pumping based on a tunable electric circuit

Communications Physics, 2022
AbstractIn topological phases, localized edge states protected by the bulk topological number appear. This phenomenon is known as the bulk-edge correspondence, which has been theoretically established in various topological systems including topological pumping. There have been experimental works on topological edge states.
Kenichi Yatsugi, Tsuneya Yoshida, Tomonari Mizoguchi, Yoshihito Kuno, Hideo Iizuka, Yukihiro Tadokoro, Yasuhiro Hatsugai   +6 more
openaire   +2 more sources

Ionic Metal Poly(heptazine Imides) and Single‐Atoms Interplay: Engineered Stability and Performance for Photocatalysis, Photoelectrocatalysis and Organic Synthesis

Advanced Functional Materials, EarlyView.
Poly(heptazine) imides (PHIs), a crystalline carbon nitride subclass, intercalate metals to deliver high stability, tunable electronics, and efficient charge separation. These features enable solar‐driven applications such as hydrogen evolution, CO₂ reduction, and organic synthesis.
Gabriel A. A. Diab, Izadora F. Reis, Chong Wang, Diandra Barreto, Oleksandr Savateev, Ivo F. Teixeira, Pablo Jiménez‐Calvo   +6 more
wiley   +1 more source

Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures

Advanced Functional Materials, EarlyView.
3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina, Luke Alexander Turnbull, Weijie Xu, Markus König, Paul Simon, Wilder Carrillo‐Cabrera, Amalio Fernández‐Pacheco, Uri Vool, Dieter Suess, Claas Abert, Vladimir M. Fomin, Claire Donnelly   +11 more
wiley   +1 more source

The Complexity of Classes of Pyramid Graphs Based on the Fritsch Graph and Its Related Graphs

Axioms
A quantitative study of the complicated three-dimensional structures of artificial atoms in the field of intense matter physics requires a collaborative method that combines a statistical analysis of unusual graph features related to atom topology ...
Ahmad Asiri, Salama Nagy Daoud
doaj   +1 more source