Results 41 to 50 of about 41,044,774 (341)

Localization and Coherence in Nonintegrable Systems [PDF]

open access: yes, 2003
We study the irreversible dynamics of nonlinear, nonintegrable Hamiltonian oscillator chains approaching their statistical asympotic states. In systems constrained by more than one conserved quantity, the partitioning of the conserved quantities leads ...
Ablowitz   +26 more
core   +2 more sources

Design and Experimental Characterization of an Actuation System for Flow Control of an Internally Blown Coanda Flap

open access: yesAerospace, 2020
The focus of the work is on the evaluation, development and integration of a robust actuator system for three-dimensional flow control of a blown Coanda flap to improve the high lift system of commercial aircraft.
Peter Wierach   +2 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Dynamical systems and Poisson structures [PDF]

open access: yesJournal of Mathematical Physics, 2009
We first consider the Hamiltonian formulation of n=3 systems, in general, and show that all dynamical systems in R3 are locally bi-Hamiltonian. An algorithm is introduced to obtain Poisson structures of a given dynamical system. The construction of the Poisson structures is based on solving an associated first order linear partial differential ...
Gurses, M.   +2 more
openaire   +7 more sources

Multi-Hamiltonian structures for r-matrix systems

open access: yes, 2002
For the rational, elliptic and trigonometric r-matrices, we exhibit the links between three "levels" of Poisson spaces: (a) Some finite-dimensional spaces of matrix-valued holomorphic functions on the complex line; (b) Spaces of spectral curves and ...
Beauville A.   +9 more
core   +1 more source

The Realization of ZnO Nanowires Interconnection through Femtosecond Laser Irradiation of Ag Nanoparticles Solder

open access: yesApplied Sciences, 2022
Nanowire interconnection is the basis for the construction and integration of micro-nano functional devices. But so far, it is still difficult to achieve a reliable interconnection of metal oxide nanowires.
Yanchao Guan   +5 more
doaj   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

Reduction of Stokes-Dirac structures and gauge symmetry in port-Hamiltonian systems

open access: yes, 2012
Stokes-Dirac structures are infinite-dimensional Dirac structures defined in terms of differential forms on a smooth manifold with boundary. These Dirac structures lay down a geometric framework for the formulation of Hamiltonian systems with a nonzero ...
Scherpen, Jacquelien M. A.   +2 more
core   +1 more source

Nonlinear output frequency response functions of MDOF systems with multiple nonlinear components [PDF]

open access: yes, 2006
In engineering practice, most mechanical and structural systems are modeled as Multi-Degree-of-Freedom (MDOF) systems. When some components within the systems have nonlinear characteristics, the whole system will behave nonlinearly.
Billings, S.A., Lang, Z.Q., Peng, Z.K.
core   +2 more sources

Strain-based method for fatigue failure prediction of additively manufactured lattice structures

open access: yesScientific Reports, 2023
Lattice structures find application in numerous technological domains, including aerospace and automotive industries for structural components, biomedical sector implants, and heat exchangers.
Antonio Coluccia, Giorgio De Pasquale
doaj   +1 more source

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