Results 91 to 100 of about 38,933 (214)
Integral control of port-Hamiltonian systems: non-passive outputs without coordinate transformation
, 2017 In this paper we present a method for the addition of integral action to non-passive outputs of a class of port-Hamiltonian systems. The proposed integral controller is a dynamic extension, constructed from the open loop system, such that the closed loop
Donaire, Alejandro +2 more
core +1 more source
Multi-variable port Hamiltonian model of piezoelectric material [PDF]
, 2004 In this paper, the dynamics of a piezoelectric material is presented within the new framework of multi-variable distributed port Hamiltonian systems. This class of infinite dimensional system is quite general, thus allowing the description of several ...
Macchelli, A. +3 more
core +4 more sources
Dissipative energy functionals of passive linear time‐varying systems
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 2, February 2026.Abstract The concept of dissipativity plays a crucial role in the analysis of control systems. Dissipative energy functionals, also known as Hamiltonians, storage functions, or Lyapunov functions, depending on the setting, are extremely valuable to analyze and control the behavior of dynamical systems, but in general circumstances they are very ...
Riccardo Morandin, Dorothea Hinsen
wiley +1 more source
Scattering for infinite dimensional port Hamiltonian systems [PDF]
Proceedings of the 41st IEEE Conference on Decision and Control, 2002., 2004 In this paper, an introduction to scattering for infinite dimensional systems within the framework of port Hamiltonian system is presented. The classical results on wave propagation can be extended to generic power propagation phenomena, for example to fluid dynamics or flexible structures.
Macchelli, Alessandro +3 more
openaire +3 more sources
Seasonally Variable Sediment Oxygen Demand Kinetics in Lake Erie's Central Basin
Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 2, February 2026.Abstract Sediment oxygen demand (SOD) rate measurements in Lake Erie and other lakes are complicated by the fact that SOD can show different degrees of dependence upon water temperature and dissolved oxygen (DO) concentration and different models have been used to describe this process. We incubated sediment cores from three locations within the basin,
Casey M. Godwin +4 more
wiley +1 more source
Reduction of Stokes-Dirac structures and gauge symmetry in port-Hamiltonian systems
, 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
On the Provision of International Public Goods in Dynamic Open Economies
Review of International Economics, Volume 34, Issue 1, Page 198-218, February 2026.ABSTRACT This study develops a dynamic two‐country model with an international public good, the stock of which positively affects the productivity of the private‐goods sectors in each country, and the evolution of the stock is determined by each country's voluntary contribution in the form of public investment. Two scenarios are examined: A cooperative
Akihiko Yanase
wiley +1 more source
A universal example for quantitative semi‐uniform stability
Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.Abstract We characterise quantitative semi‐uniform stability for C0$C_0$‐semigroups arising from port‐Hamiltonian systems, complementing recent works on exponential and strong stability. With the result, we present a simple universal example class of port‐Hamiltonian C0$C_0$‐semigroups exhibiting arbitrary decay rates slower than t−1/2$t^{-1/2}$.
Sahiba Arora +3 more
wiley +1 more source
Exponential stability for infinite-dimensional non-autonomous port-Hamiltonian Systems
, 2019 We study the non-autonomous version of an infinite-dimensional port-Hamiltonian system on an interval $[a, b]$. Employing abstract results on evolution families, we show $C^1$-well-posedness of the corresponding Cauchy problem, and thereby existence and ...
Augner, Björn, Laasri, Hafida
core +1 more source
Symmetry Enhanced Unconventional Spin Current Anisotropy in a Collinear Antiferromagnet
Advanced Functional Materials, Volume 36, Issue 3, 8 January 2026.Spin‐orbit torques (SOTs) are investigated in epitaxial FeSn, a topological antiferromagnet with kagome lattice symmetry. Combining experimental and theoretical approaches, the study identifies a six‐fold conventional damping‐like spin‐orbit torque (DL SOT), along with the coexistence of both six‐fold and uniaxial unconventional field‐like torque (FL ...
Pankhuri Gupta +10 more
wiley +1 more source