Results 101 to 110 of about 9,436,648 (214)

Model Predictive Control of Gas Networks Based on Port‐Hamiltonian Formulations

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 3, September 2026.
ABSTRACT To efficiently compute optimal compressor actions in gas networks, we investigate port‐Hamiltonian models consisting of linear and a nonlinear model assumptions. The control actions are derived via adjoint‐based gradients that incorporate the constraints of the underlying optimization problem. We then present results from the implementation of
Andres Ortegón‐Villacorte, Jan Rohleff   +1 more
wiley   +1 more source

Robust control approach for handling matched and/or unmatched uncertainties in port-controlled Hamiltonian systems

IET Cyber-systems and Robotics, 2019
This study considers the problem of robust interconnection and damping assignment passivity-based control approach (IDA-PBC) for underactuated mechanical systems from two points of view.
Tahereh Binazadeh, Mahsa Karimi, Ali Reza Tavakolpour-Saleh   +2 more
doaj   +1 more source

Quantum Plasmonic Dynamics Modeled via a Modified Langevin Noise Formalism: Numerical Studies of Single‐Photon Emission and Two‐Photon Interference

Nanophotonics, Volume 15, Issue 16, 26 August 2026.
Based on the modified Langevin noise formalism and BA‐MA theory, optimized computational formulations are demonstrated for quantum plasmonic simulations without explicit BA–MA mode construction. Plasmonic Hong‐Ou‐Mandel interference, g2, atomic population, and single‐photon probability amplitudes are efficiently analyzed, revealing directional single ...
Jisang Seo, Hyunwoo Choi, Thomas E. Roth, Jie Zhu, Weng Cho Chew, Dong‐Yeop Na   +5 more
wiley   +1 more source

Moving-Boundary Port-Hamiltonian Systems

CoRR
In this paper, we consider linear boundary port-Hamiltonian distributed parameter systems on a time-varying spatial domain. We derive the specific time-varying Dirac structure that these systems give rise to and use it to formally establish a new class of moving-boundary port-Hamiltonian systems by showing that these distributed parameter systems on a ...
T. J. Meijer, A. Das, Siep Weiland
openaire   +2 more sources

Field‐Frustrated Cooperative Distortions: Suppressing Jahn‐Teller Ordering via Microwave Annealing

Advanced Science, Volume 13, Issue 48, 28 August 2026.
Microwave annealing decouples local Jahn‐Teller distortions from long‐range cooperative ordering in CuFe2O4, stabilizing a metastable cubic phase that remains locally distorted yet globally symmetry‐frustrated. Synchrotron XRD, PDF, XPS, and in situ thermal cycling reveal how non‐equilibrium MW‐phonon interactions suppress cooperative orbital‐lattice ...
Daryoosh Vashaee, Kelvin Dsouza
wiley   +1 more source

Achievable Casimirs and its implications on control of port-Hamiltonian systems [PDF]

, 2007
In this paper we extend results on interconnections of port-Hamiltonian systems to infinite-dimensional port-Hamiltonian systems and to mixed finite and infinite dimensional port-Hamiltonian systems.
Schaft, A.J. van der,, Pasumarthy, R., Schaft, A.J. van der; id_orcid, Pasumarthy, R.,, Schaft, A.J. van der   +4 more
core   +2 more sources

Port-Hamiltonian Modeling for Control [PDF]

, 2020
This article provides a concise summary of the basic ideas and concepts in port-Hamiltonian systems theory and its use in analysis and control of complex multiphysics systems.
van der Schaft, Arjan, Leonard, N. E.
core   +1 more source

An exciting Approach to Theoretical Spectroscopy

Advanced Science, Volume 13, Issue 47, 24 August 2026.
ABSTRACT Theoretical spectroscopy, and more generally, electronic‐structure theory, are powerful concepts for describing the complex many‐body interactions in materials. They cover methods from ground‐state properties to lattice excitations and light‐matter interaction, including time‐resolved variants.
Martí Raya‐Moreno, Alexander Buccheri, Noah Alexy Dasch, Nasrin Farahani, Ignacio Gonzalez Oliva, Andris Gulans, Seokhyun Hong, Manoar Hossain, Hannah Kleine, Martin Kuban, Sven Lubeck, Benedikt Maurer, Pasquale Pavone, Fabian Peschel, Daria Popova‐Gorelova, Lu Qiao, Elias Richter, Santiago Rigamonti, Ronaldo Rodrigues Pela, Maximilian Schebek, Kshitij Sinha, Daniel T. Speckhard, Jan Stutz, Sebastian Tillack, Dmitry Tumakov, Jānis Užulis, Mara Voiculescu, Cecilia Vona, Mao Yang, Claudia Draxl   +29 more
wiley   +1 more source

Adaptive control of port-Hamiltonian systems [PDF]

, 2010
In this paper an adaptive control scheme is presented for general port-Hamiltonian systems. Adaptive control is used to compensate for control errors that are caused by unknown or uncertain parameter values of a system.
Scherpen, J.M.A.,, Dirksz, D.A., Scherpen, J.M.A., Scherpen, JMA, Scherpen, Jacquelien M.A., D. A. Dirksz, Dirksz, DA Daniel, Dirksz, Daniel, Dirksz, D.A.,, J. M. A. Scherpen   +9 more
core  

Port-Hamiltonian representation of metriplectic systems and their interconnection [PDF]

We study port-control for metriplectic systems. Using the well-known representation of metriplectic systems as dissipative Hamiltonian systems with the exergy as Hamiltonian function, the corresponding port-controlled Hamiltonian systems are considered ...
Kirchhoff, Jonas, Maschke, Bernhard
core   +1 more source