Results 171 to 180 of about 1,129,305 (370)
Self and Mutual Acoustic Radiation Impedances for Two Coplanar Unbaffled Disks [PDF]
, 1973 A. L. Van Buren, B. J. King
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Diffraction of sound by nearly rigid barriers [PDF]
The diffraction of sound by barriers with surfaces of large, but finite, acoustic impedance was analyzed. Idealized source-barrier-receiver configurations in which the barriers may be considered as semi-infinite wedges are discussed. Particular attention
Hadden, W. J., Jr., Pierce, A. D.
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Recent Advances in Reactive Microdroplets for Clean Water and Energy
Advanced Materials, EarlyView.Reactive microdroplets enable precise and sustainable chemistry at small scales. This review explores their role as confined reactors and dynamic interfaces for synthesizing functional materials, fuels, and microdevices. It offers a critical perspective on how droplet‐based platforms can drive next‐generation technologies in clean energy, environmental
Qiuyun Lu +4 more
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Archives of Acoustics, 2014 In the paper the mutual impedance of circular planar sources with parabolic vibration velocity distribution occurring harmoniously in time is analyzed. It is assumed that the sources set in planar rigid baffle radiate into a lossless and homogeneous gas ...
L. LENIOWSKA, W. RDZANEK, P. WITKOWSKI
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Zhongguo Jianchuan YanjiuObjectiveAs specific and demanding requirements are imposed by measuring the impedance of the anechoic coatings on the hull surface of an underwater vehicle using the traditional water-filled tube experiment, a method of sound absorption coefficient ...
Fan ZHANG +3 more
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Diffraction of sound by trapezoidal barriers with distinct surface acoustic impedances [PDF]
, 1977 W. James Hadden
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Advanced Materials Interfaces, EarlyView.This study investigates how the mode of application affects drug delivery from coated microneedles. Combining finite element modeling with custom 3D‐printed Franz Diffusion Cells, the researchers found that prolonged application pressure from microneedles in situ reduces drug permeation.
Wenting Shu +5 more
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How to Manufacture Photonic Metamaterials
Advanced Materials Technologies, EarlyView.Metamaterials boast applications such as invisibility and “hyperlenses” with resolution beyond the diffraction limit, but these applications haven’t been exploited in earnest and the market for them hasn’t grown much likely because facile and economical methods for fabricating them without defect has not emerged.
Apurba Paul, Gregory Timp
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Acoustic impedance measurements in infants and young adults [PDF]
, 1977 James R. Walker +3 more
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Chemical Thermodynamics and Thermal AnalysisThis study examines the molecular interactions between polyethylene glycol (PEG) at concentrations of 5%, 10%, and 15% with ethanol, utilizing ultrasonic techniques across temperatures of 25 °C, 35 °C, 45 °C, and 55 °C. Key acoustic parameters, including
Niharika Das +2 more
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