Results 21 to 30 of about 2,229,339 (290)
Vibration Resonance Spectrometry (VRS) for the Advanced Streaming Detection of Rotor Unbalance
Machines, 2023 Determination of the diagnosis thresholds is crucial for the fault diagnosis of industry assets. Rotor machines under different working conditions are especially challenging because of the dynamic torque and speed.
Matthew T. Gerdes +5 more
doaj +1 more source
Frequencies of the Ricker wavelet [PDF]
, 2015 The Ricker wavelet is theoretically a solution of the Stokes differential equation, which takes into account the effect of Newtonian viscosity, and is applicable to seismic waves propagated through viscoelastic homogeneous media.
Wang, Y
core +1 more source
Case depth in SAE 1020 steel using barkhausen noise [PDF]
Materials Research, 2013 The most widely used thermochemical process for surface hardening of steels is case hardening. Using several different heat treatments, martensitic surface layers were formed on SAE 1020 steel into which carbon had been diffused.
Alessandra Drehmer +2 more
doaj +3 more sources
Nihon Kikai Gakkai ronbunshu, 2023 In order to obtain the fundamental information for the measurement of thin oil film thickness adhered on lubrication surface using ultrasonic method, the ultrasonic calculation considering the scattering attenuation at each interface and the influence of
Akitoshi TAKEUCHI
doaj +1 more source
How Wavelike Bumps Mitigate the Vortex-induced Vibration of a Drilling Riser [PDF]
Journal of Applied and Computational Mechanics, 2021 In this paper, computational fluid dynamics is used to study how wavelike bumps influence the suppression of drilling-riser vortex-induced vibration (VIV).
Liping Tang +4 more
doaj +1 more source
Black hole radiation with high frequency dispersion [PDF]
, 1999 We consider one model of a black hole radiation, in which the equation of motion of a matter field is modified to cut off high frequency modes. The spectrum in the model has already been analytically derived in low frequency range, which has resulted in ...
D. G. Swanson +12 more
core +2 more sources
The acute effect of using of texture foot orthoses on ground reaction forces in older adults during walking [PDF]
مجله پزشکی دانشگاه علوم پزشکی تبریز, 2021 Background:Walking is one the common daily activities. With the beginning of middle age, weakness in the lower limb muscles can reduce the ability to walk. The use of foot orthoses reduce the load on the limbs and supports the joints during walking.
Aydin Valizadeh orang +2 more
doaj +1 more source
Applied Sciences, 2021 The active magnetic bearings system plays a vital role in high-speed rotors technology, where many research articles have discussed the nonlinear dynamics of different categories of this system such as the four-pole, six-pole, eight-pole, and sixteen ...
Sabry M. El-Shourbagy +5 more
doaj +1 more source
Frontiers in PsychologyAimTimbre in piano performance plays a critical role in enhancing musical expression. However, timbre control in current piano performance education relies mostly on descriptive characterization, which involves large variations of interpretation.
Yuan Zhuang, Shuo Yang
doaj +1 more source
Nonconventional Technologies Review, 2022 In plasma arc welding using ultrasound, the ultrasonic vibration acts on the tungsten electrode with the plasma arc and changes its thermal pressure characteristics. It is very important to examine the underlying mechanism of the interaction.
Štefánia Olejárová
doaj