Results 51 to 60 of about 222,777 (293)

Non-Hermitian topological electric circuits with projective symmetry

Frontiers of Physics
12 pages,7 ...
Zhang, Wenjie, Yang, Yuting, Shen, Xiaopeng, Shi, Liwei, Hang, Zhi Hong   +4 more
openaire   +3 more sources

The Comparative Study on the Li-S and Li-ion Batteries Cooperating with the Photovoltaic Array

Energies, 2020
The stationary photovoltaic array can be used to charge the different vehicle batteries and, in parallel, be used as a power source for the utility grid or standalone devices placed such as in campers.
Krystian Siczek, Krzysztof Siczek, Piotr Piersa, Łukasz Adrian, Szymon Szufa, Andrzej Obraniak, Przemysław Kubiak, Wojciech Zakrzewicz, Grzegorz Bogusławski   +8 more
doaj   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 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

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 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

Frequency response and gap tuning for nonlinear electrical oscillator networks. [PDF]

PLoS ONE, 2013
We study nonlinear electrical oscillator networks, the smallest example of which consists of a voltage-dependent capacitor, an inductor, and a resistor driven by a pure tone source. By allowing the network topology to be that of any connected graph, such
Harish S Bhat, Garnet J Vaz
doaj   +1 more source

Experimental observation of topological disclination states in lossy electric circuits

Physical Review B
Topological phase transitions can be remarkably induced purely by manipulating gain and loss mechanisms, offering a novel approach to engineering topological properties. Recent theoretical studies have revealed gain-loss-induced topological disclination states, along with the associated fractional charge trapped at the disclination sites.
Jin Liu, Wei-Wu Jin, Zhao-Fan Cai, Xin Wang, Yu-Ran Zhang, Xiaomin Wei, Wenbo Ju, Zhongmin Yang, Tao Liu   +8 more
openaire   +2 more sources

Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

Advanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi, Daniele Zucchelli, Zeinab Hamid, Christina Kousseff, Arup Sarkar, Aristea Pavlou, Zhitian Ling, Somayeh Kashani, Iain McCulloch, Paul W. M. Blom, Fabrizio Torricelli, Paschalis Gkoupidenis   +11 more
wiley   +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
Liu, Shuo, Ma, Shaojie, Yang, Cheng, Zhang, Lei, Gao, Wenlong, Xiang, Yuan Jiang, Cui, Tie Jun, Zhang, Shuang   +7 more
openaire   +2 more sources