This study measured surface electromyography of the biceps brachii and triceps brachii during repeated drum playing with and without a drumstick to better understand activation of the upper arm muscles and inform the use of instrument playing for motor rehabilitation. A total of 40 healthy college students participated in this study. All participants were asked to strike a drum with their hand ...

A percussionist can alter the harmonic content of a tunable acoustic drum to provide a desired sound. By analysis of different aspects in construction of a drum the specific sound can be implemented. Through a Fast Fourier Transform of electronically acquired audio data an analysis of a drum can be performed at many stages of its construction. By dissecting the drum construction into various la...

The performance of the electric submersible pump (ESP) significantly affected by Gas Void Fraction (GVF). Thus, using of a Rotary Gas Separator (RGS) is a suitable solution for this issue. The performance of the RGS is function of different parameters such as geometry of impeller, rotating speed, boundary conditions, media viscosity and GVF. In this study, the influences of GVF, viscosity, and ...

Techniques for Machine Understanding of Live Drum Performances by Eric Dean Battenberg Doctor of Philosophy in Engineering Electrical Engineering and Computer Sciences University of California, Berkeley Professor Nelson Morgan, Chair This dissertation covers machine listening techniques for the automated realtime analysis of live drum performances. Onset detection, drum detection, beat tracking...

The drum machine has been an important tool in music production for decades. However, its flawless way of playing drum patterns is often perceived as mechanical and rigid, far from the groove provided by a human drummer. This paper presents research towards enhancing the drum machine with learning capabilities. The drum machine learns user-specific variations (i.e. the groove) from human drumme...

Abstract Uniform migration of lithium (Li) ions between the separator and anode is critical for achieving good quality Li deposition, which much significance metal battery operation, especially Li–sulfur (Li–S) batteries. Commercial separators such as polypropylene or polyethylene can be prepared by wet dry processes, but they indeed cause plentiful porosities, resulting in uneven ion stripping...

Existing systems for automatic transcription of drum tracks from polyphonic music focus on detecting drum instrument onsets but lack consideration of additional meta information like bar boundaries, tempo, and meter. We address this limitation by proposing a system which has the capability to detect drum instrument onsets along with the corresponding beats and downbeats. In this design, the sys...