Results 111 to 120 of about 17,744,880 (215)
Moving-Boundary Port-Hamiltonian Systems
CoRRIn 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
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 +29 more
wiley +1 more source
Derivation of Input-State-Output Port-Hamiltonian Systems from bond graphs
, 2009 This paper presents methods to obtain models in the form of Input-State-Output Port-Hamiltonian Systems from causal nonlinear bond graph models. This is done first establishing equivalences among key variables in both domains through the comparison of ...
Junco, Sergio, Donaire, Alejandro
core +1 more source
IEEE AccessThis paper proposes an adaptive Lyapunov–Hamiltonian control law for multi-cell interleaved boost converters in fuel cell (FC)-based dc microgrids under constant-power loads (CPLs). Conventional cascade proportional–integral (PI) controller
Anon Namin +8 more
doaj +1 more source
Port-Hamiltonian systems: an introductory survey [PDF]
, 2006 The theory of port-Hamiltonian systems provides a framework for the geometric description of network models of physical systems. It turns out that port-based network models of physical systems immediately lend themselves to a Hamiltonian description ...
van der Schaft, Arjan +4 more
core +3 more sources
Port maps of Irreversible Port Hamiltonian Systems
, 2023 Irreversible Port Hamiltonian Systems are departure of Port Hamiltonian Systems as they are generated not only by a Hamiltonian function but also by an entropy function and defined with respect to a quasi-Poisson bracket which embeds the definition of ...
Kirchhoff, Jonas, Maschke, Bernhard
core
On the addition of integral action to port-controlled Hamiltonian systems
, 2009 A technique that provides closed loop integral action depending on the passive outputs of port-controlled Hamiltonian systems is already available. This paper addresses a new method that allows us to add integral action also on system variables having ...
Junco, Sergio J., Donaire, Alejandro
core +1 more source
MachinesStructure-preserving trajectory tracking control for a six-degree-of-freedom robotic manipulator is developed within the port-Hamiltonian framework. Error Hamiltonian is constructed by incorporating configuration and momentum tracking errors into the ...
Zhiheng Lin +4 more
doaj +1 more source
Port-hamiltonian formulation of an electrical circuit using different kinds of states
Tạp chí Khoa học và Công nghệThis work focuses on a dynamic electrical circuit whose dynamics are affine in the control input. Such dynamics are considered to be re-expressed in a canonical form, namely the port-Hamiltonian (pH) representation with dissipation, where the Hamiltonian ...
Hoang Ngoc Ha, Ho Phuoc Tien
doaj +1 more source