Results 31 to 40 of about 2,218,426 (289)
The characteristics of continuous gravity changes in Qiongzhong seismic station
地震科学进展, 2020 This paper collected the continuous gravity observation data from Qiongzhong seismic station since 2009. After processing the raw data with sudden jumps，steps and error data，we calculated and analyzed the characteristics of the gravity tide data from ...
Jialin Wu +5 more
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On the internal modes in sine-Gordon chain
, 2004 We address the issue of internal modes of a kink of a discrete sine-Gordon equation. The main point of the present study is to elucidate how the antisymmetric internal mode frequency dependence enters the quasicontinuum spectrum of nonlocalized waves. We
A. M. Kosevich +6 more
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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
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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
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Operational Non-Contact Diagnostics of Induction Machine Based on Stray Electromagnetic Field
Communications, 2015 Paper deals with one new method of testing and operational diagnostics of induction machines using a stray electromagnetic field. This leakage field on the surface or on surroundings of machine frame is the carrier for diagnostic information and we can ...
Petr Bernat, Petr Kacor
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Modelling and Study of the Effect of Geometrical Parameters of Piezoelectric Plate and Stack
Applied Sciences, 2021 The piezoelectric stack is employed as an actuator and a sensor in a variety of technical applications. The dynamic modelling of piezoelectric plates and stack is used to investigate and search for new applications in mechatronics systems that are based ...
Tolera G. Degefa +2 more
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Noise spectrum of a tunnel junction coupled to a nanomechanical oscillator
, 2007 A nanomechanical resonator coupled to a tunnel junction is studied. The oscillator modulates the transmission of the junction, changing the current and the noise spectrum.
Rammer, J., Shelankov, A. L., Wabnig, J.
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Analysis of acoustic wave transmission characteristics in underground coal mine drill pipe
Meikuang AnquanThe acoustic wave transmission of MWD data is an important means to realize the high-speed and accurate transmission of borehole data in coal mine, which is conducive to changing the situation that most of the underground gas extraction in coal mine is ...
Xining REN, Jun GAO, Jia ZHANG
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A Hybrid Approach for Identification of Manhole and Staircase to Assist Visually Challenged
IEEE Access, 2018 Recognition of an object is a bare minimum restraint for an individual in order to sort out or classify the type of the object. This situation becomes a tricky experience with respect to the blind persons; therefore, to assist visually challenged persons,
Sreenu Ponnada +2 more
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Acoustic frequency spectrum characteristics in periodic drill string under tension
Energy Science & Engineering, 2020 It is a promising measure to transmit downhole information by acoustic wave through drill string. However, the transmission distance and quality of acoustic signals in field conditions are still not satisfied because the acoustic frequency spectrum in ...
Qing Wang, Zhichuan Guan, Yongwang Liu
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