Results 61 to 70 of about 232,970 (323)
International Journal of Adaptive Control and Signal Processing, EarlyView.This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley +1 more source
Two-phase distribution in the vertical flow line of a domestic wet central heating system [PDF]
, 2013 The theoretical and experimental aspects of bubble distribution in bubbly two-phase flow are reviewed in the context of the micro bubbles present in a domestic gas fired wet central heating system.
Fsadni, A.M., Ge, Y.T.
core +4 more sources
Shock Waves in Liquid under the Pulsed Action of a Cavitation Bubble on a Rigid Wall [PDF]
Учёные записки Казанского университета: Серия Физико-математические науки, 2015 Shock waves arising in water during the collapse of a cavitation bubble near a plane rigid wall are studied in the case with a liquid layer (interlayer) between the bubble and the wall. The shock waves determine to a large extent the pulsed action of the
A.A. Aganin +3 more
doaj
A Numerical Simulation of the Underwater Supersonic Gas Jet Evolution and Its Induced Noise
Applied Sciences, 2023 To explore the complex flow field and noise characteristics of underwater high-speed gas jets, the mixture multiphase model, large eddy simulation method, and Ffowcs Williams–Hawking (FW–H) acoustic model were used for simulations, and the numerical ...
Wei Yu, Baoshou Wang, Chun Zhang
doaj +1 more source
Fabrication‐Directed Entanglement for Designing Chiral and Anisotropic Metamaterial Foams
Advanced Engineering Materials, EarlyView.This work introduces fabrication‐directed entanglement (FDE), combining viscous thread printing and topology optimization to program entangled foams with spatially patterned stiffness. By tuning coil density, FDE enables anisotropy, programmable Poisson's ratio, and chirality in foams.
Daniel Revier +3 more
wiley +1 more source
Defence Technology, 2023 To investigate the overall damage characteristics and failure modes of a warship subjected to an underwater non-contact near-field explosion, a hull girder with a trapezoidal cross-section was designed, manufactured, and tested.
Hai-tao Li +5 more
doaj +1 more source
The Noise Generated by the Collapse of a Cloud of Cavitation Bubbles [PDF]
, 1995 The focus of this paper is the numerical simulation of the dynamics and acoustics of a cloud of cavitating bubbles. The prototypical problem solved considers a finite cloud of nuclei that is exposed to a decrease in the ambient pressure which causes the
Brennen, C. E., Wang, Y.-C.
core
X‐Ray Tomography Analysis of Damage Mechanisms in Metal Matrix Syntactic Foams During Compression
Advanced Engineering Materials, EarlyView.In situ synchrotron X‐ray tomography is used to investigate the internal damage mechanisms of AlSi12 metal matrix syntactic foam with ceramic hollow spheres during compressive loading. It is concluded that a homogeneous distribution of the second‐phase filler material results in a sequential collapse in a localized region; this leads to controlled and ...
Indrajeet Tambe +8 more
wiley +1 more source
Similarity solution of the shock wave propagation in water [PDF]
Applied and Computational Mechanics, 2007 This paper presents the possibility of calculation of propagation of a shock wave generated during the bubble collapse in water including the dissipation effect.
Muller M.
doaj
Formation of Single Bubbles from a Submerged Orifice Using Pulsed Ultrasound Waves
Journal of Fluid Science and Technology, 2008 A new experimental method is presented in which single small gas bubbles are generated in a liquid from a submerged orifice using pulsed ultrasound waves.
Minori SHIROTA +2 more
doaj +1 more source