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first method, samples are collected and the concentration of DON or individual DON components are monitored over time. To measure DON flux rates using 15N tracer techniques. all of the DIN forms (N~ + , NO3 -.and NO2 -) must be removed, and the DON pool must be isolated with a high efficiency. At present. there are three basic approaches used to isolate DON-wet chemistry, ion retardation, and d...
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This paper presents a prototypical tool for sound selection driven by users’ gestures. Sound selection by gestures is a particular case of ”query by content” in multimedia databases. Gesture-to-Sound matching is based on computing the similarity between both gesture and sound parameters’ temporal evolution. The tool presents three algorithms for matching gesture query to sound target. The syste...
متن کاملSound Localization in a Sound Field Represented by Spherical Harmonics
Sound localization is an important aspect in human hearing, with interaural time difference (ITD) and interaural level difference (ILD) as two binaural cues that complement each other in this goal. Head related transfer functions (HRTFs) can be used to estimate and analyze these cues, where an HRTF representation in the spherical harmonics domain has recently been suggested for analysis. The ai...
متن کاملAcoustical Sound Database in Real Environments for Sound Scene Understanding and Hands-Free Speech Recognition
This paper reports on a project for collection of the sound scene data. The sound scene data is necessary for studies such as sound source localization, sound retrieval, sound recognition and hands-free speech recognition in real acoustical environments. There are many kinds of sound scenes in real environments. The sound scene is denoted by sound sources and room acoustics. The number of combi...
متن کاملSound pressure level generated by individual portable sound equipment.
INTRODUCTION The use of Personal Digital Audio Players can cause hearing injuries, as the sound is generated directly in the ear canal. It is believed that different types of headphones can cause different amplifications, since they cause changes in the volume and resonance of the ear canal according to their depth. OBJECTIVE This study aimed to determine the sound pressure to which young ind...
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ژورنال
عنوان ژورنال: Acoustical Science and Technology
سال: 2002
ISSN: 1346-3969,1347-5177
DOI: 10.1250/ast.23.293