Results 51 to 60 of about 756 (166)

Load frequency control in power systems by a robust backstepping sliding mode controller design

open access: yesEnergy Reports, 2023
This paper presents a novel sliding-mode load frequency control (LFC) strategy for two-area thermal interconnected power system. Backstepping technique is utilized to design the controller.
Javad Ansari   +2 more
doaj   +1 more source

Testing Hypotheses of Covariate Effects on Topics of Discourse

open access: yesStatistical Analysis and Data Mining: An ASA Data Science Journal, Volume 19, Issue 2, April 2026.
ABSTRACT We introduce an approach to topic modeling with document‐level covariates that remains tractable in the face of large text corpora. This is achieved by de‐emphasizing the role of parameter estimation in an underlying probabilistic model, assuming instead that the data come from a fixed but unknown distribution whose statistical functionals are
Gabriel Phelan, David A. Campbell
wiley   +1 more source

Modelling car-following dynamics with stochastic input-state-output port-Hamiltonian systems [PDF]

open access: yesEPJ Web of Conferences
In this contribution, we introduce a general class of car-following models with an input-state-output port-Hamiltonian structure. We derive stability conditions and long-term behavior of the finite system with periodic boundaries and quadratic ...
Ackermann Julia   +3 more
doaj   +1 more source

Finite-time stabilization and H∞ control of Port-controlled Hamiltonian systems with disturbances and saturation.

open access: yesPLoS ONE, 2021
The finite-time stabilization and finite-time H∞ control problems of Port-controlled Hamiltonian (PCH) systems with disturbances and input saturation (IS) are studied in this paper.
Baozeng Fu, Qingzhi Wang, Ping Li
doaj   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame   +4 more
wiley   +1 more source

Port-Hamiltonian descriptor systems

open access: yes, 2017
The modeling framework of port-Hamiltonian systems is systematically extended to constrained dynamical systems (descriptor systems, differential-algebraic equations). A new algebraically and geometrically defined system structure is derived. It is shown that this structure is invariant under equivalence transformations, and that it is adequate also for
Beattie, Christopher   +3 more
openaire   +2 more sources

Toward Large Nonradiating Qubits: When Quantum Engineering Meets Photonics

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 3, March 2026.
Nonradiating superconducting qubits suppress radiative losses through photonic‐inspired mechanisms such as anapole states and bound states in the continuum (BICs). This review surveys theoretical foundations and recent implementations of large, wavelength‐scale qubits that confine electromagnetic energy while maintaining coherence.
Alexey Basharin
wiley   +1 more source

Energy-based Hamiltonian approach in H∞ controller design for n-degree of freedom mechanical systems

open access: yesSystems Science & Control Engineering, 2019
This paper studies the energy-based approach for ${H_\infty } $ controller design of $n $-degree of freedom mechanical systems. In this approach, the Hamiltonian function, which is the sum of kinetic and potential energies of the system, is considered as
M. Karimi, T. Binazadeh
doaj   +1 more source

Linear Port-Hamiltonian Systems Are Generically Controllable [PDF]

open access: yesIEEE Transactions on Automatic Control, 2022
The new concept of relative generic subsets is introduced. It is shown that the set of controllable linear finite-dimensional port-Hamiltonian systems is a relative generic subset of the set of all linear finite-dimensional port-Hamiltonian systems.
openaire   +2 more sources

Decoding pH‐Driven Phase Transition of Lipid Nanoparticles

open access: yesSmall, Volume 22, Issue 14, 6 March 2026.
Ionizable aminolipids govern lipid nanoparticle (LNP) function through environment‐dependent protonation. Constant‐pH molecular dynamics reveal intrinsic, apparent, and surface pKa${\rm pK}_{\text{a}}$ values within LNP‐mimetic membranes, demonstrating that the LNP lipid environment induces a pronounced downward pKa${\rm pK}_{\text{a}}$ shift exceeding
Marius F.W. Trollmann   +1 more
wiley   +1 more source

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