Results 11 to 20 of about 2,960,420 (225)
Temperature and Frequency of Percussion Instruments
International Scholastic Journal of Science, 2016 The frequency produced by a wooden xylophone, a metallophone and a drum at temperatures ranging from -18C to 50C was studied. It was found that the frequency of the first two increases, while the drum’s frequency decreases with increasing temperature ...
César Díez Factor
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Percussion and PSO-SVM-Based Damage Detection for Refractory Materials
Micromachines, 2023 Refractory materials are basic materials widely used in industrial furnaces and thermal equipment. Their microstructure is similar to that of many heterogeneous high-performance materials used in micro/nanodevices.
Dan Yang +4 more
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Time-Frequency Analysis of Clinical Percussion Signals Using Matrix Pencil Method
Journal of Electrical and Computer Engineering, 2015 This paper discusses time-frequency analysis of clinical percussion signals produced by tapping over human chest or abdomen with a neurological hammer and recorded with an air microphone.
Moinuddin Bhuiyan +5 more
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Influence of Mechanical Rotary Percussion Tool on Bit Feed Friction of Horizontal Well
Shiyou jixie, 2023 Weight-on-bit(WOB)congestion is one of the main factors restricting the penetration rate of sliding drilling in horizontal wells, and the use of vibration friction reduction tools is the most direct and effective way to reduce friction in horizontal ...
Yan Yan +5 more
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EXPERIMENTAL STUDY OF ROCK DESTRUCTION BY ECCENTRIC IMPACT PULSES DURING ROTARY-PERCUSSION DRILLING
Известия Томского политехнического университета: Инжиниринг георесурсов, 2020 The relevance of the research is caused by the need to find the ways to increase the maximum depth of well drilling by the rotary-percussion method and its productivity.
Vyacheslav V. Neskoromnykh +1 more
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Dynamic Analysis of the Musical Triangles—Experimental and Numerical Approaches
Applied Sciences, 2022 This paper addresses the experimental and numerical dynamic analysis of curved bars used as percussion musical instruments. These structures are known as triangles, being made of various metal materials.
Mariana Domnica Stanciu +5 more
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Faunal Assemblages From Lower Bed I (Oldupai Gorge, Tanzania)
Frontiers in Ecology and Evolution, 2022 Palaeobiological and archeological excavations at the site of Ewass Oldupa, found in the western Plio-Pleistocene rift basin of Oldupai Gorge (also Olduvai Gorge), Tanzania, revealed rich fossiliferous levels and the earliest remains of human activity at
Pamela Akuku +12 more
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University Percussion Ensemble, December 11, 1986
, 2016 Recorded during a live performance at Dalton Center Recital Hall, Western Michigan University, Kalamazoo, Michigan, December 11, 1986, 9:00 p.m., the 151st concert of the School of Music's 1986-1987 season.Members of the University Percussion Ensemble in
Western Michigan University. Percussion Ensemble
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Musical Instrument Identification Based on Improved Convolutional Neural Network and Auditory Spectrum [PDF]
Jisuanji gongcheng, 2019 Aiming at the problem that traditional musical instrument identification depends on feature selection and elementary acoustical feature,a 5-layer Convolutional Neural Network(CNN) extracting high-level time-frequency information of timbre layer by layer ...
WANG Fei,YU Fengqin
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University Percussion Ensemble, March 21, 1979
, 2018 Recorded during a live performance at Oakland Recital Hall, Western Michigan University, Kalamazoo, Michigan, March 21, 1979, program no. 204 of the Department of Music's 1978-1979 season.University Percussion Ensemble, Michael Varner, director ; Roxann ...
Western Michigan University. Percussion Ensemble
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