597 research outputs found
sj-docx-1-jht-10.1177_10963480231215496 – Supplemental material for The Emergence of Virtual Experiences in the Sharing Economy
No full textSupplemental material, sj-docx-1-jht-10.1177_10963480231215496 for The Emergence of Virtual Experiences in the Sharing Economy by YooHee Hwang, Seunghun Shin and Taekyung Kim in Journal of Hospitality & Tourism Research</p
Digital Waveguide Synthesis of the Geomungo with a Time-varying Loss Filter
No full textThis article proposes a commuted waveguide synthesis model for the geomungo, a Korean traditional plucked-string instrument featuring unusually wide vibrato. To model pitch fluctuation as well as the decay characteristics of its harmonic partials, a time-varying loss filter with a sinusoidal loop gain is used. Filter parameters are estimated by approximating the gains, and excitation signals are generated by inverse filtering the original sound. Real-time implementation of the algorithm for the development of the virtual instrument is also discussed
IAMHear
No full textIAMHear is a novel tabletop interface for music performance and sound making, in which smart mobile devices are used as on-table objects for interaction. Thanks to the advanced features of smart mobile devices, IAMHear is by nature multi-modal and highly interactive. The system also allows for acoustic location mechanism using virtually inaudible sound without any special sensors, making itself simpler in structure and easier to implement. In addition, use of”everyday objects“also evokes interaction by intuitive gestures such as placement, movement, and rotation. As a music sequencer, IAMHear enables the user to make music by placing objects on table; inspired by the idea of spectrographic mapping with virtual scan line, pitch and timbre of sounds are determined by the location/orientation of tabletop objects as well as ambient noise. We present IAMHear as a simple and novel alternative to interactive tabletop interface for music and various multimedia applications as well
Dual protoporphyrin IX (PpIX) and Moxifloxacin Confocal Imaging for Accurate Brain Tumor Delineation
No full text2
Tailoring of Magnetic Field for Performance Improvement in a Small Hall Thruster Plasma
No full textTailoring of the magnetic field was attempted for performance improvement in a 500-W class small Hall thruster (KmHT-60). Two different tailored magnetic field configurations, both having field lines convex toward the anode but with different curvatures, resulted in different thrusts, anode specific impulses, and anode efficiencies; the corresponding values were 20.7 mN, 2150 s, and 51.5% at an anode power of 423 W in the case of the better aligned magnetic field, which were 27%, 21%, and 54% higher than those in the other magnetic field configuration, respectively. Efficiency analysis using far-field plume measurements showed that the difference in the thruster performance is mostly due to the enhancements in the current utilization efficiency caused by the suppression of the electron leakage current and the high propellant utilization efficiency due to the increased ion current.
- …
