Results 51 to 60 of about 360,412 (305)
Shock and Vibration, 2021 The problem of vibration and noise in the iron core of power transformers remains quite topical. Insofar as the state-of-the-art iron core and binding production adopt the lamination method and weft-free adhesive tape, respectively, the transformer core ...
He Qiang +5 more
doaj +1 more source
Strategies for increasing the operating frequency range of vibration energy harvesters: a review
, 2010 This paper reviews possible strategies to increase the operational frequency range of vibration-based micro-generators. Most vibration-based micro-generators are spring-mass-damper systems which generate maximum power when the resonant frequency of the ...
Beeby, Steve, Tudor, John, Zhu, Dibin
core +1 more source
Acoustic Measures Capture Speech Dysfunction in Spinocerebellar Ataxia
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Spinocerebellar ataxias (SCA) are hereditary cerebellar degenerative disorders with a common feature of dysarthria, involving impaired phonatory and articulatory control of speech, thereby affecting social communication. In this study, we investigated whether acoustic measures could objectively measure speech dysfunction and identify
Zena Fadel +5 more
wiley +1 more source
Damping mechanism of noise damped wheel for high-speed railway vehicles
Nihon Kikai Gakkai ronbunshu, 2022 The purpose of this paper is to clarify the damping mechanism of the wheel that we have developed. In high-speed railway vehicles, noise associated with speed increase is a problem.
Ayumi UENISHI +2 more
doaj +1 more source
The design and development of a spacecraft appendage tie down mechanism [PDF]
, 1985 The design and evolution is described of a spacecraft Appendage Tie Down Mechanism (ATDM). Particular emphasis is paid to the mechanical aspects of using dry lubricants to increase the efficiency of acme threads and worm gearing.
Head, R., Nygren, W. D.
core +1 more source
Heap Formation in Granular Media
, 1993 Using molecular dynamics (MD) simulations, we find the formation of heaps in a system of granular particles contained in a box with oscillating bottom and fixed sidewalls.
Clément E +11 more
core +2 more sources
Time resolved particle dynamics in granular convection [PDF]
, 2005 We present an experimental study of the movement of individual particles in a layer of vertically shaken granular material. High-speed imaging allows us to investigate the motion of beads within one vibration period.
A. Garcimartín +31 more
core +3 more sources
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Model-Based Analysis of Flow Separation Control in a Curved Diffuser by a Vibration Wall
Energies, 2021 Vibration wall control is an important active flow control technique studied by many researchers. Although current researches have shown that the control performance is greatly affected by the frequency and amplitude of the vibration wall, the mechanism ...
Weiyu Lu +3 more
doaj +1 more source
Vibration of ZnO nanotubes: a molecular mechanics approach
Applied Physics A, 2010 We investigate the vibrational properties of two kinds of single-wall ZnO nanotubes. The simulations are carried out for three types of zigzag nanotubes (5,0), (8,0), (10,0) and armchair nanotubes (3,3), (4,4), (6,6). The natural frequencies are determined by means of the molecular mechanics approach with the universal force field potential.
R, Chowdhury, Adhikari, S, Scarpa, FL
openaire +3 more sources