Results 81 to 90 of about 756 (166)
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
Discrete port-Hamiltonian system model of a single-reed woodwind instrument
Frontiers in Signal ProcessingTime-domain simulation of woodwind instruments typically involves the development of separate discrete-time sub-models for the excitation mechanism and the resonator.
Champ C. Darabundit, Gary Scavone
doaj +1 more source
Two Types of Non‐Abelian Topological Phase Transitions Under Duality Mapping in 1D Photonic Chains
Advanced Science, Volume 13, Issue 2, 9 January 2026.In this work, two types of non‐Abelian phase transitions are revealed. The first type is the braided‐node type, signified by the Dirac degeneracy node moving into or out of the unit circle. The second type corresponds to the emerging of nodal‐line degeneracy which intersects with unit circles.
Yufu Liu +6 more
wiley +1 more source
IET Control Theory &Applications, Volume 20, Issue 1, January/December 2026.This paper proposes an adaptive‐velocity sensorless control strategy for freight trains using multiple electric locomotives operating under external disturbances. The control strategy is designed based on a non‐recursive control framework with a time‐varying control parameter. The elimination of velocity sensors is achieved through a high‐gain observer
Tien Dung Nguyen +4 more
wiley +1 more source
IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.This study introduces an innovative control methodology utilising the M5P algorithm for DC‐link voltage regulation within a direct power control‐grid voltage modulation context, addressing the limitation of classical and conventional intelligent controllers.
Khechafi Sofiane +6 more
wiley +1 more source
Stabilization of a brushed DC motor with the port controlled Hamiltonian approach
Revista Técnica de la Facultad de Ingeniería, 2010 The main objective of this paper is to present an application of the port controlled Hamiltonian approach to achieve stabilization of electromechanical system.
Atilio Morillo Piña +2 more
doaj
Port-Hamiltonian Systems: Network Modeling and Control of Nonlinear Physical Systems [PDF]
, 2004 It is shown how port-based modeling of lumped-parameter complex physical systems (multi-body systems, electrical circuits, electromechanical systems,..) naturally leads to a geometrically defined class of systems, called port-Hamiltonian systems. These are Hamiltonian systems defined with respect to a power-conserving geometric structure capturing the ...
openaire +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
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Geometry of Thermodynamic Processes
Entropy, 2018 Since the 1970s, contact geometry has been recognized as an appropriate framework for the geometric formulation of thermodynamic systems, and in particular their state properties.
Arjan van der Schaft, Bernhard Maschke
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