Results 81 to 90 of about 15,047 (298)
Elastic tubes in the mode of self-excited oscillation
, 2006 Our paper studies experimentally the self-excited oscillations of thin-walled elastic tubes with respect to the Korotkoff sounds. The self-excited oscillation is a phenomenon, when an elastic tube looses stability of its shape and starts to oscillate ...
Chlup, Hynek
core
Impact dampers for controlling self-excited oscillation
, 1996 The performance and design of an impact damper for controlling the vibration of a van der Pol oscillator are discussed. Both autonomous and harmonically excited systems are analyzed.
Ghosh, A., Chatterjee, S., Mallik, A. K.
core +1 more source
Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment
Advanced Materials, EarlyView.ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud +31 more
wiley +1 more source
Advanced Materials, EarlyView.Magnetic particles are organized into layered architectures by combining shear flow and magnetic fields, with the resulting structures governed by appropriate Mason numbers. The programmed assemblies provide spatial guidance for cell placement, linking field‐controlled self‐assembly, flow‐induced structuring and biological organization.
Guillermo Camacho +5 more
wiley +1 more source
Analysing nonlinear oscillation and chaos using fundamental-wave balance principle
Tongxin xuebao, 2008 The fundamental-wave current Is1 can be found by the theory of fundamental harmonic balance. Its flow direc- tion represents profit and loss of active and reactive power in order to maintain self-oscillation, when the exciting source applied to the ...
HUANG Bing-hua +2 more
doaj +2 more sources
Impact Performance of Helmholtz Self-Excited Oscillation Waterjets Used for Underground Mining
Applied Sciences, 2019 Pulsed waterjets are widely used in exploitation of fossil fuels for their high efficiency. With the aim to further clarify the impact performance of Helmholtz self-excited oscillation waterjets (HSEOW), numerical and experimental studies were conducted.
Zhenlong Fang +6 more
doaj +1 more source
Minimally Invasive Delivery of Optical Nanosensors Using Injectable Hydrogels
Advanced Materials Interfaces, EarlyView.Injectable peptide hydrogels offer a minimally invasive delivery platform for single‐walled carbon nanotube (SWCNT)‐based near‐infrared fluorescent sensors, enabling real‐time measurement of drug concentrations. Encapsulated SWCNTs show a dose‐dependent fluorescence response across physiologically relevant concentrations and retain their fluorescence ...
Shirel Kleiner, Gili Bisker
wiley +1 more source
工程科学学报, 2015 To obtain characteristic pressure signals in the cavity of a self-resonating water jet nozzle, a detection system was built by using micro high-responsive pressure sensors.
HAN Jian +4 more
doaj +1 more source
Hidden Dynamics of a Self-excited SD Oscillator
Nonlinear DynamicsAbstract The present study explores the nonlinear dynamics of a self-excited smooth and discontinuous (SD) oscillator with geometric nonlinearity at the switching surface. Using a novel framework called hidden dynamics, introduced by Jeffrey, the research addresses the challenge posed by dry friction oscillators where the static friction ...
Dinesh Bandi, Ganesh Tamadapu
openaire +1 more source
Self-Excited Oscillation of Transonic Flow Around an Airfoil in Two-Dimensional Channel
, 2020 A self-excited oscillation of transonic flow in a simplified cascade model was investigated experimentally, theoretically and numerically. The measurements of the shock wave and wake motions, and unsteady static pressure field predict a closed loop ...
Professor Yoshimichi Tanida +1 more
core