Results 71 to 80 of about 2,060 (206)
Unsteady Aerodynamic Responses of Mistuned Cascade to Incoming Wakes. Mistuning of Stagger Angle.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1991 Unsteady aerodynamic responses of a mistuned cascade subjected to incoming wakes from an upstream cascade are investigated in this study, where the extended Nishiyama-Funazaki method is employed. Numerical calculations are made, focussing on the effects of stagger angle mistuning of the cascade. It is accordingly found that there is some possibility of
openaire +3 more sources
Auditory change detection in musically trained adolescents and young adults: An EEG–fMRI study
Annals of the New York Academy of Sciences, Volume 1550, Issue 1, Page 199-205, August 2025.Electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) were used to examine auditory deviance detection in musically trained and untrained 16–20‐year‐olds. Participants passively listened to a sequence of major chord standards and minor chord deviants during separate EEG and fMRI sessions.
Vesa Putkinen +3 more
wiley +1 more source
Forced response of Bladed Disks with Damping Mistuning
, 2011 The effect of mistuning on the vibration of bladed disks has been extensively studied in the past 30 years. Most of these analysis typically cover the case of small variations of the elastic characteristics (mass and stiffness) of the blades.
Martel Escobar, Carlos +5 more
core +1 more source
Quantum Powers and Primitive Ontology
Philosophy Compass, Volume 20, Issue 8, August 2025.ABSTRACT This article surveys recent work on primitive ontology (PO) approaches to quantum mechanics, focusing on proposals that seek to integrate this approach with the metaphysics of causal powers. PO approaches aim to provide a clear metaphysical picture in which the world consists of local entities such as particles, matter density fields or ...
William M. R. Simpson
wiley +1 more source
Identification of Mistuning and Model Updating of an Academic Blisk Based on Geometry and Vibration Measurements [PDF]
, 2015 peer reviewedIn this work, an experimental modal analysis is performed on an academic bladed disk using a base excitation to identify the mistuning of each blade. Optical measurement is used to obtain the exact geometry of the structure and to be able to
Nyssen, Florence, Golinval, Jean-Claude
core +1 more source
Acta Ophthalmologica, Volume 103, Issue 1, Page e10-e18, February 2025.Abstract Purpose To investigate the performance of a simple prediction scheme for the formula constants optimised for a mean refractive prediction error. Methods Analysis based on a dataset of 888 eyes before and after cataract surgery with IOL implantation (Hoya Vivinex).
Achim Langenbucher +6 more
wiley +1 more source
Development of an autonomous experimental system to identify BLISK mistuning [PDF]
, 2022 editorial reviewedThe one-piece assembly of bladed disks, named blade integrated disks (blisks), leads to more severe mistuning effects and reduced damping. An accurate mistuning identification methodology is thus necessary for the manufacturers to avoid
Ligot, Jérôme +6 more
core +1 more source
Ultra‐Low Noise Figure Ka‐Band MMIC LNA With Graded‐Channel GaN HEMTs
Electronics Letters, Volume 61, Issue 1, January/December 2025.We report broadband (20 GHz ‐ 40 GHz) low‐noise amplifiers in a cascode topology using graded‐channel GaN HEMTs, resulting in an excellent NF figure down to 1 dB with 15 dB gain per stage. ABSTRACT We report broadband (20 GHz ‐ 40 GHz) low‐noise amplifiers in a cascode topology using graded‐channel GaN HEMTs, resulting in an excellent NF figure down to
Joe Tai, Joel Wong, Jeong‐Sun Moon
wiley +1 more source
Analysis of the Worst Mistuning Patterns in Bladed Disk Assemblies
, 2003 The problem of determining the worst mistuning patterns is formulated and solved as an optimization problem. Maximum resonant amplitudes searched across the many nodes of a large-scale finite element model of a mistuned bladed disk and across all the ...
Yevgen Petrov (4463476) +3 more
core +1 more source
Flutter analysis of mistuned bladed disk
Nihon Kikai Gakkai ronbunshu, 2015 Although, in designing blades, it is assumed that all blades on a disk are identical (tuned system), the vibration characteristics of the blade is slightly different due to the manufacturing tolerance, the deviation of the material property, and so on ...
Yasutomo KANEKO +3 more
doaj +1 more source