Results 251 to 260 of about 5,818,028 (293)
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Aerodynamic characteristics of trills
The Journal of the Acoustical Society of America, 1998What are the aerodynamic conditions required for trills? To find out we had two subjects produce steady-state voiced, voiceless, and ejective alveolar trills. The backpressure during trills was intermittently bled with a tube of varying diameter (and thus impedance) inserted in the speaker’s mouth via the buccal sulcus and gap behind the back molars ...
Maria-Josep Sole +2 more
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The Aerodynamic Characteristics of a Microbus
Advanced Materials Research, 2011This work is focused on the reduction of the aerodynamic resistance of a microbus. The approach is the three dimensional (3-D) numerical simulation. The RNG k–ε turbulence models are adopted in the computation. Based on the model of SC6350 Chang’an microbus and the improved rear shape, the aerodynamic characteristics of both models at different speeds ...
Xiao Ni Qi, Jian Meng, Yong Qi Liu
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Aerodynamic characteristics of flapping motion in hover
Experiments in Fluids, 2007The aim of the present work is to understand the aerodynamic phenomena and the vortex topology of an unsteady flapping motion by means of numerical and experimental methods. Instead of the use of real insect/bird wing geometries and kinematics which are highly complex and difficult to imitate by an exact modeling, a simplified model is used in order to
F. Kurtulus, D. +3 more
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Acoustic and Aerodynamic Characteristics of Choral Singers
Journal of Voice, 2019The study aimed to investigate and compare the acoustic and aerodynamic characteristics of choral singers and nonsingers.Twenty choral singers and 20 nonsingers in the age range of 20-30 years with no vocal pathology participated in the study. For acoustic analysis, the voice sample was recorded and analyzed using Praat software (Phonetic Sciences ...
Sunil Kumar Ravi +3 more
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Aerodynamic Characteristics of Tracheostomy Speaking Valves
Journal of Speech, Language, and Hearing Research, 1993Pressure-flow characteristics were determined for four different one-way valves used for speech production in the patient who has had a tracheotomy. Each valve was tested at steady-state flow rates of 150, 250, 350, and 450 ml/sec in isolation and attached to a tracheostomy tube. Results indicated significant differences in resistance among the valves.
L, Fornataro-Clerici, D J, Zajac
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Aerodynamic characteristics of French consonants
The Journal of the Acoustical Society of America, 2004This paper reports some aerodynamic measurements made on French consonants with a group of ten speakers. Speakers were recorded while saying nonsense words in phrases such as papa, dis papa encore. The nonsense words in the study combined each of the French consonants with three vowels /i, a, u/ to from two syllables words with the first syllable being
Didier Demolin +2 more
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Enhancement of aerodynamic characteristics in automobiles
2013 International Conference on Energy Efficient Technologies for Sustainability, 2013The aerodynamic characteristics directly affect the stability, driving characteristics, safety, operation, and oil consumption of automobiles. This study examines the aerodynamic drag force acting over the car body using CFD analysis and results were validated experimentally by conducting the wind tunnel test. The drag force acting over the car body is
K. Sathish Kumar, C. S. Rajamanickam
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Aerodynamic Characteristics of Subaru XT
SAE Technical Paper Series, 1986<div class="htmlview paragraph">In recent years much more attention is being paid to aerodynamics, resulting in vehicles that are far more highly refined aerodynamically emerging one after another.</div> <div class="htmlview paragraph">SUBARU's belief is that aerodynamic design of such vehicles should be well balanced with engine ...
Teruhisa Tsukada +3 more
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Aerodynamic Characteristics of a Gyroplane Configuration
Journal of Aircraft, 1998We describe the wind-tunnel testing of a scale model gyroplane in the 3-m Low-Speed Wind Tunnel at the Aeronautical Research and Test Institute, Prague. These tests were conducted by the University of Glasgow as part of a U.K. Civil Aviation Authority funded research program into gyroplane airworthiness and flight safety.
F. N. Coton, L. Smrcek, Z. Patek
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Aerodynamic characteristics of avian airfoils
AIP Conference Proceedings, 2019This paper is focused on four bird’s airfoils namely Seagull, Merganser, Teal and Owl which are extracted from their respective wing cross-sections. In addition to this, the corrugation due to feather roughness of Swift bird is imposed on Seagull. The aerodynamic performance of these 4 avian airfoils and corrugated Seagull airfoil is tested in Reynolds
Rajesh Senthil Kumar. T. +4 more
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