Results 111 to 120 of about 299,182 (254)
Acoustic axes conditions revised [PDF]
arXivThe explanation of the basic acoustic properties of crystals requires a recognition of the acoustic axes. To derive the acoustic axes in a given material, one requires both a workable method and the necessary and sufficient criteria for the existence of the acoustic axes in a partial propagation direction.
arxiv
Optical measurement of acoustic radiation pressure of the near-field acoustic levitation through transparent object [PDF]
arXiv, 2013 It is known that macroscopic objects can be levitated for few to several hundred micrometers by near-field acoustic field and this phenomenon is called near-field acoustic levitation (NFAL). Although there are various experiments conducted to measure integrated acoustic pressure on the object surface, up to now there was no direct method to measure ...
arxiv
Publications in acoustics and noise control from the NASA Langley Research Center during 1940-1976 [PDF]
Reference lists are presented of published research papers in various areas of acoustics and noise control for the period 1940-1976. The references are listed chronologically and are grouped under the following general headings: (1) Duct acoustics; (2 ...
Fryer, B. A.
core +1 more source
Interactions in an acoustic world [PDF]
arXiv, 2016 The present paper aims to complete an earlier paper where the acoustic world was introduced. This is accomplished by analyzing the interactions which occur between the inhomogeneities of the acoustic medium, which are induced by the acoustic vibrations traveling in the medium.
arxiv
Journal of Marine Science and EngineeringIn the context of multi-array multi-target bearing-only localization, due to the existence of direction-finding errors, the crossing results of bearing lines cannot accurately determine correspondence with targets.
Chuanxing Hu +4 more
doaj +1 more source
Propagation of Nonlinear Acoustic Waves in the Suspension of Ultrasound Contrast Agents Part I: Equation for Counting Resonance Effects and Revealing Acoustic Localization [PDF]
arXiv, 2018 The oscillations of ultrasound contrast agents are of particular importance to the understanding of the propagation of acoustic waves in the bubbly liquids (suspensions of ultrasound contrast agents). Acoustic waves propagating in bubbly liquids have been investigated extensively.
arxiv
Journal of Marine Science and EngineeringThe horizontal-transverse coherence of low-frequency (300 Hz) and long-range (10–40 km) acoustic fields near the bottom in deep water is investigated based on experimental data obtained from the South China Sea.
Qianyu Wang +7 more
doaj +1 more source
Virtual acoustics displays [PDF]
The real time acoustic display capabilities are described which were developed for the Virtual Environment Workstation (VIEW) Project at NASA-Ames. The acoustic display is capable of generating localized acoustic cues in real time over headphones.
Fisher, Scott S. +3 more
core +1 more source