Results 21 to 30 of about 141 (136)

A New Approach for Symmetry Preserving Partial Eigenstructure Assignment of Undamped Vibrating Systems

Shock and Vibration, 2015
A new approach for the partial eigenvalue and eigenstructure assignment of undamped vibrating systems is developed. This approach deals with the constant output feedback control with the collocated actuator and sensor configuration, and the output matrix
Zhigang Hu, Jiafan Zhang, Hongjun Yang, Guoquan Wang   +3 more
doaj   +1 more source

A Hybrid‐High Order Method for Fracture Modelling

International Journal for Numerical Methods in Engineering, Volume 127, Issue 13, 15 July 2026.
ABSTRACT In this work we introduce a new Hybrid High‐Order method for the numerical simulation of fracture propagation based on phase‐field models. The proposed method: supports general meshes made of polygonal/polyhedral elements, which provides great flexibility in mesh design and adaptation; can accommodate large variations of both the displacement ...
Alessandra Crippa, Julien Coatléven, Daniele A. Di Pietro, Nicolas Guy, Soleiman Yousef   +4 more
wiley   +1 more source

Parametric Control to a Type of Descriptor Quasi-Linear Systems via Output Feedback

IEEE Access, 2019
This paper investigates the parametric design method to a type of descriptor quasi-linear systems whose coefficient matrices contain system variables and time-varying parameters.
Da-Ke Gu, Da-Wei Zhang, Guang-Ren Duan
doaj   +1 more source

Incorporating Spatial Information in Entropy‐Weighted Composite Indicators: An Application to Education and Training in Italy

Geographical Analysis, Volume 58, Issue 3, July 2026.
ABSTRACT This study introduces a novel methodology in which a composite indicator derived using the Entropy Weight Method is decomposed into a location‐specific component and a spatial component. Although EWM is widely recognized for its robustness in constructing data‐driven composite indicators, standard applications typically overlook spatial ...
Martina D'Amario, Alfredo Cartone, Paolo Postiglione   +2 more
wiley   +1 more source

A Unified Vector Electromagnetic Framework for Ionospheric Scintillation and Polarization Effects in GNSS

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The ionosphere imposes coupled amplitude, phase, and polarization distortions on trans‐ionospheric Global Navigation Satellite System (GNSS) signals, reflecting the structure and dynamics of electron‐density irregularities. Classical weak‐scatter theory provides a mature framework for interpreting amplitude and phase scintillation, but these ...
T. Durgonics, S. S. Beeck
wiley   +1 more source

No spillover partial eigenvalue assignment in second-order linear systems using the Brauer’s theorem and dense influence matrices

MATEC Web of Conferences, 2018
The control of vibrations for systems with second-order linear dynamics is a cornerstone for several engineering application, as structural vibration control in civil and aerospace structures.
Motta Jessica, de Almeida Marconi, Santos Tito, Araújo José   +3 more
doaj   +1 more source

Advection‐Pressure Splitting Schemes Applied to a Non‐Conservative 1D Blood Flow Model With Transport for Arteries and Veins

International Journal for Numerical Methods in Fluids, Volume 98, Issue 4, Page 398-432, April 2026.
We introduce new efficient and accurate first order finite volume‐type numerical schemes, for the non‐conservative one‐dimensional blood flow equations with transport, taking into account different velocity profiles. The framework is the flux‐vector splitting approach of Toro and Vázquez‐Cendón (2012), that splits the system in two subsystems of PDEs ...
Alessandra Spilimbergo, Eleuterio F. Toro, Annunziato Siviglia, Lucas O. Müller   +3 more
wiley   +1 more source

Entangled Photon Pair Generator Via Biexciton–Exciton Cascade in Semiconductor Quantum Dots and its Simulation

Advanced Quantum Technologies, Volume 9, Issue 4, April 2026.
In this work an entangled photon pair generator that utilizes the biexciton–exciton cascade in semiconductor quantum dots is described on a physical, mathematical, and software level for interdisciplinary audiences, leading to Kraus operators to seamlessly incorporate it into bigger simulations.
Simon Sekavčnik, Paul Kohl, Janis Nötzel   +2 more
wiley   +1 more source

Clock Asynchronism Calibration in Bistatic Sensing Systems via Expert‐Guided Cross‐Attention Mechanism

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper addresses the issue of sampling point offset and ranging bias caused by frequency discrepancies between the crystal oscillators of transceivers in bistatic sensing systems, proposing an expert‐guided cross‐attention network. ABSTRACT With the rapid evolution of wireless communication networks, it has become increasingly desirable for base ...
Haitao Zhao, Zhennan Qin, Wenchao Xia, Chun Zhu, Yadong Wang   +4 more
wiley   +1 more source

Feedback Linearization and Eigenstructure Assignment Control for Quadcopter Trajectory Tracking

Algerian Journal of Signals and Systems
A quadcopter is a highly coupled and nonlinear multivariable system which attracted the attention of many researchers. During the last decade, several techniques and strategies have been proposed for modeling and controlling Quadcopters.
Hocine LOUBAR, Razika ZAMOUM BOUSHAKI, Abdellah KOUZOU   +2 more
doaj   +1 more source