Results 51 to 60 of about 8,383 (254)

Analysis and circuit design of a fractional-order Lorenz system with different fractional orders

Systems Science & Control Engineering, 2014
The paper first discusses the recently reported fractional-order Lorenz system, analyzes it by using the frequency-domain approximation method and the time-domain approximation method, and finds its chaotic dynamics when the order of the fractional-order system varies from 2.8 to 2.9 in steps of 0.1. Especially for the fractional-order Lorenz system of
H.Y. Jia, Q. Tao, Z.Q. Chen
openaire   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

A unified fractional action integral framework for memory-dependent circuit dynamics and Josephson junctions

Journal of Electronic Science and Technology
This study presents a unified framework for analyzing electric circuits and Josephson junctions using a fractional action integral that incorporates memory effects and nonlocal behavior.
Rami Ahmad El-Nabulsi, Waranont Anukool, Raja Valarmathi, Chinnasamy Thangaraj   +3 more
doaj   +1 more source

Engineering MnNiPx Cathode via Dual Role of Mn: Simultaneous Enhancement of Activity and Intermittent Operation Durability

Advanced Functional Materials, EarlyView.
Engineering MnNiPx cathodes through the dual role of Mn simultaneously improves hydrogen evolution reaction activity and intermittent‐operation durability. Mn preferentially oxidizes to protect Ni–P sites from irreversible oxidation, while metallic Mn incorporation enhances the HER kinetics of Ni–P active layer.
Ik‐Sun Kim, Jungwoo Choi, Sechan Lee, Jung Eun Park, Changsoo Lee, Jongsu Seo, Ji Hee Kwon, Gisu Doo, Hyeonjung Park, Dongju Lee, Won‐Chul Cho, Changhee Kim, Nosang Vincent Myung, Sang Soo Han, Byeong‐Seon An, MinJoong Kim, Hyun‐Seok Cho   +16 more
wiley   +1 more source

Demonstrating Vibrational Current Generation With a Self‐Assembled Bioelectret

Advanced Functional Materials, EarlyView.
Vacuum‐deposited films of the plant‐derived molecule, Baicalein, form a self‐assembled bioelectret exhibiting spontaneous orientation polarization and a giant surface potential. The films induce alternating current during the vibration of a movable electrode without charging treatments. Hydrocarbon protection enhances the air stability of the Baicalein
Kouki Akaike, Yukihiro Shimoi, Qingshuo Wei, Yutaro Ono, Satomi Hosono, Yoichi Yamada, Haruhisa Akiyama, Shunsuke Tanaka   +7 more
wiley   +1 more source

On the Possibility of the Jerk Derivative in Electrical Circuits

Advances in Mathematical Physics, 2016
A subclass of dynamical systems with a time rate of change of acceleration are called Newtonian jerky dynamics. Some mechanical and acoustic systems can be interpreted as jerky dynamics. In this paper we show that the jerk dynamics are naturally obtained
J. F. Gómez-Aguilar, J. Rosales-García, R. F. Escobar-Jiménez, M. G. López-López, V. M. Alvarado-Martínez, V. H. Olivares-Peregrino   +5 more
doaj   +1 more source

Design of fractional-order analog integrated circuits [PDF]

, 2021
Το αντικείμενο της Διδακτορικής Διατριβής αφορά τη σχεδίαση αναλογικών ολοκληρωμένων κυκλωμάτων κλασματικής τάξης. Τα συστήματα κλασματικής τάξης είναι μια αναπτυσσόμενη περιοχή της έρευνας και έχουν χαρακτηριστεί ακόμη και ως τα συστήματα του 21ου αιώνα! Αυτό πηγάζει κυρίως από το διεπιστημονικό τους χαρακτήρα, αλλά και από το γεγονός ότι παρουσιάζουν
openaire   +1 more source

Redirecting Nano‐Silicon Agglomeration: Dual‐Carbon Design Triggers Self‐Adaptive Nanoporous Si Sponge for Enhanced Lithium Storage

Advanced Functional Materials, EarlyView.
This study addresses silicon anode degradation using an engineered nSi/Gr/C dual‐carbon matrix. By restricting SEI infiltration, the architecture redirects silicon agglomeration into a beneficial structural self‐adaptive activation. During cycling, silicon nanoparticles self‐organize into a resilient nanoporous sponge. This dynamic network accommodates
Wei Zhang, Yuxia Zhong, Wen Ren, Lei Zhang, Yexin Pan, Mitch Guijun Li, Gary J. Cheng, Ruohan Yu   +7 more
wiley   +1 more source

Recent applications of fractional calculus to science and engineering

International Journal of Mathematics and Mathematical Sciences, 2003
This paper deals with recent applications of fractional calculus to dynamical systems in control theory, electrical circuits with fractance, generalized voltage divider, viscoelasticity, fractional-order multipoles in electromagnetism, electrochemistry ...
Lokenath Debnath
doaj   +1 more source

Energy storage and loss in fractional‐order circuit elements

IET Circuits, Devices & Systems, 2015
The efficiency of a general fractional‐order circuit element as an energy storage device is analysed. Simple expressions are derived for the proportions of energy that may be transferred into and then recovered from a fractional‐order element by either constant‐current or constant‐voltage charging and discharging.
Tom T. Hartley, Robert J. Veillette, Jay L. Adams, Carl F. Lorenzo   +3 more
openaire   +1 more source