Results 81 to 90 of about 7,979 (231)

Quantum chaos in open systems: a quantum state diffusion analysis

, 1995
Except for the universe, all quantum systems are open, and according to quantum state diffusion theory, many systems localize to wave packets in the neighborhood of phase space points. This is due to decoherence from the interaction with the environment,
Anastopoulos C, Brun T, Brun T, Dowker F, Gell-Mann M, Gell-Mann M, Gisin N, Gisin N, Griffiths R, Griffiths R, Griffiths R, Guckenheimer J, Gutzwiller M C, Halliwell J, Ian C Percival, Joos E, Lindblad G, Omnès R, Omnès R, Omnès R, Percival I C, Rüdiger Schack, Schack R, Spiller T P, Steimle T, Todd A Brun, Twamley J   +26 more
core   +2 more sources

Invariant Tori of Duffing-Type Equations

Journal of Differential Equations, 1998
This note is an announcement of a new result of the author's Ph.D-thesis finished before the spring of 1995 in the mathematics department of Peking university. The author considers the generalized Duffing equation of the type \[ {d^2 x\over dt^2}+ 2^{2n+ 1} +\sum^{2n}_{k= 0} p_k(t) x^k= 0,\tag{\(*\)} \] where the coefficient functions \(p_k(t)\), \((k=
openaire   +2 more sources

Empowerment for People With Lived Experience of the Justice System? Peer Leadership and the ‘Spectrum of Public Participation’

The Howard Journal of Crime and Justice, EarlyView.
ABSTRACT Drawing from Arnstein's original ladder model, and the political philosophy of Dewey, Fraser and Pitkin, it is argued that people with lived experience of the justice system require a coherent social movement if they are to be collectively empowered by lived experience consultations.
Aaron Hart
wiley   +1 more source

Dirichlet boundary value problem for Duffing's equation

Electronic Journal of Qualitative Theory of Differential Equations, 2013
We use direct variational method in order to investigate the dependence on parameter for the solution for a Duffing type equation with Dirichlet boundary value conditions.
Piotr Kowalski
doaj   +1 more source

Periodic property of the time-fractional Kundu–Mukherjee–Naskar equation

Results in Physics, 2020
The Kundu–Mukherjee–Naskar equation (KMN) can model the data transmission in birefringent fibers through molecules or pulses in a few Femto-seconds. A fractional modification with Riemann-Liouville time-fractional derivative is suggested to take into ...
Ji-Huan He, Yusry O. El-Dib
doaj   +1 more source

The Role of University Peer Mentoring in Heritage Language Identity Construction in Diasporic Contexts

International Journal of Applied Linguistics, EarlyView.
ABSTRACT Research shows that many heritage language (HL) students pursue HL study at the university level to reconnect with their cultural roots. While most university‐focused research has examined HL learners, less attention has been given to how teaching and peer mentoring experiences in higher education shape HL identities. This study examines how a
Mi Yung Park
wiley   +1 more source

Обнаружение слабых периодических сигналов с использованием модифицированной системы Дуффинга-Холмса дробного порядка [PDF]

, 2013
У роботі запропонована модифікована система Дуффінга-Холмса дробового порядку, призначена для виявлення слабких періодичних сигналів. Розроблена модель дозволяє знизити мінімальний поріг виявлення періодичного сигналу модифікованою системою Дуффінга ...
Fedula, M., Martynyuk, V., Мартинюк, В.В., Мартынюк, В.В., Федула, М.В., Федула, Н.В.   +5 more
core  

Tension-induced non-linearities of flexural modes in nanomechanical resonators

, 2013
We consider the tension-induced non-linearities of mechanical resonators, and derive the Hamiltonian of the flexural modes up to the fourth order in the position operators. This tension can be controlled by a nearby gate voltage.
Heikkilä, T. T., Khan, Raphaël, Massel, F.   +2 more
core   +1 more source

Existence of periodic solutions of duffing equations

Journal of Differential Equations, 1989
As the authors point out in the Introduction ``The main motivation for thus study is a paper by \textit{P. Dràbek} and \textit{S. Invernizzi} [Nonlinear Anal., Theory Methods Appl. 10, 643-650 (1986; Zbl 0616.34010)]''. One studies the problem \(u''(t)+ku'(t)+g(t,u(t))=f(t),\) \(u(0)=u(2\pi)\), \(u'(0)=u'(2\pi)\). To quote again from the Introduction ``
Habets, Patrick, Metzen, Gerhard
openaire   +2 more sources

Contribution of Fat Adjustment to Residual Feed Intake Estimation in Beef Cattle

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Including fat thickness as a covariate in the regression model used to calculate residual feed intake (RFI) could help preserve carcass quality traits, such as marbling, flavour and juiciness, by accounting for variation in fat deposition.
Larissa Bordin Temp, Letícia Pereira, Marcos Jun‐Iti Yokoo, Cintia Righetti Marcondes, Roberto D. Sainz, Fernando Bussiman, Jorge Hidalgo, Daniela Lourenco, Fernando Baldi   +8 more
wiley   +1 more source