Results 91 to 100 of about 178,536 (300)

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

DETECTION OF LIMIT CYCLE BIFURCATIONS USING HARMONIC BALANCE METHODS

International Journal of Bifurcation and Chaos, 2004
In this paper, bifurcations of limit cycles close to certain singularities of the vector fields are explored using an algorithm based on the harmonic balance method, the theory of nonlinear feedback systems and the monodromy matrix. Period-doubling, pitchfork and Neimark–Sacker bifurcations of cycles are detected close to a Gavrilov–Guckenheimer ...
Robbio, Federico I., Alonso, Diego, Moiola, Jorge Luis   +2 more
openaire   +3 more sources

К активному гашению колебаний упругих систем [PDF]

, 2006
Method of the active damping of beam oscillations is proposed in this work. Essentially nonlinear absorber with the feedback is attached to the beam. Method of the harmonic balance is used to investigate the system with the active absorber.
Аврамов, К. В., Галас, Олег Сергеевич   +1 more
core  

3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries

Advanced Functional Materials, EarlyView.
Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling, Haoran Wang, Pan Yang, Rishav Agrawal, Alex R. Neale, Laurence J. Hardwick, Tom Hasell, Esther García‐Tuñón   +7 more
wiley   +1 more source

Nonlinear damped forced oscillators with quadratic-biquadratic nonlinearities

Journal of Low Frequency Noise, Vibration and Active Control
A modified harmonic balance method (MHBM) has been extended for solving strongly nonlinear damped forced oscillators with quadratic-biquadratic nonlinearities. Depending on the parameter values and initial conditions, its behavior is quite complex.
Kamrunnahar Liya, M Wali Ullah, M Alhaz Uddin   +2 more
doaj   +1 more source

A new analytical technique based on harmonic balance method to determine approximate periods for Duffing-harmonic oscillator

Alexandria Engineering Journal, 2015
The Duffing-harmonic oscillator is a common model for nonlinear phenomena in science and engineering. In this paper, a new analytical technique has been presented to determine approximate periods of a strongly nonlinear Duffing-harmonic oscillator ...
Md. Alal Hosen, M.S.H. Chowdhury
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Harmonic Balance Method for Chaotic Dynamics in Fractional-Order Rössler Toroidal System

Discrete Dynamics in Nature and Society, 2013
This paper deals with the problem of determining the conditions under which fractional order Rössler toroidal system can give rise to chaotic behavior. Based on the harmonic balance method, four detailed steps are presented for predicting the existence ...
Huijian Zhu
doaj   +1 more source

Harmonic analysis of oscillators through standard numerical continuation tools

, 2010
In this paper, we describe a numerical continuation method that enables harmonic analysis of nonlinear periodic oscillators. This method is formulated as a boundary value problem that can be readily implemented by resorting to a standard continuation ...
Bizzarri, Federico, Linaro, Daniele, Oldeman, Bart, Storace, Marco   +3 more
core   +1 more source