Results 41 to 50 of about 9,260,103 (204)
A Mapping Relationship-Based near-Field Acoustic Holography
, 2023 A mapping relationship-based near-field acoustic holography (MRS-based NAH) is a kind of innovative NAH by exploring the mapping relationship between modes on surfaces of the boundary and hologram. Thus, reconstruction is converted to obtain the coefficients of participant modes on holograms. The MRS-based NAH supplies an analytical method to determine
Haijun Wu, Weikang Jiang
openaire +1 more source
Reconstructing the history of holography [PDF]
, 2003 This paper discusses large-scale but gradual changes in the subject of holography that have only recently become readily observable. Presenting an analysis of publications in holography over the past half century, the paper illustrates and discusses the ...
Johnston, S.F.
core +6 more sources
Preservation and Visualization of Sound Heritage: Case Study of the Sacred Bell of King Seongdeok [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesIn this study, a sound source modelling method using near-field acoustic holography was proposed as a method to preserve the acoustic radiation characteristics of acoustic heritage, and a series of processes to archive and reproduce the radiation ...
W.-H. Cho +4 more
doaj +1 more source
A Forward−Backward Splitting Equivalent Source Method Based on S−Difference
Applied SciencesThe regularization method has a direct impact on the accuracy of the reconstructed sound field in the process of inverse calculation of near−field acoustic holography using the equivalent source method.
Jin Mao +3 more
doaj +1 more source
A New Approach for Acoustic Field Interpolation
Cybernetics and Information Technologies, 2016 The present paper describes the basic performance of the 18 microphone acoustic camera manufactured by Brüel & Kjær for acoustic field reconstruction. The new approach for acoustic field interpolation is proposed and investigated.
Chyrka Iu. D.
doaj +1 more source
Spherical wave expansion coefficients for radiation from a planar velocity source [PDF]
JASA Express LettersA general theory for obtaining spherical wave function expansion coefficients for a sound beam transmitted by a planar velocity source is presented. By neglecting evanescent wave components and thus making the proposed method only approximate in the near
Blake E. Simon, Mark F. Hamilton
doaj +1 more source
Direct extrapolation in near‐field acoustic holography
Electronics Letters, 2015 The size and shape of a reconstruction surface is the same as a holography surface in conventional near‐field acoustic holography (NAH), which limits the size and shape of the measurement surface. To reduce the measurement points and use any shape of measurement array, the direct extrapolation in NAH based on wave superposition is proposed.
Jin Mao +4 more
openaire +1 more source
Light‐Imprinted Chirality in Nanomaterials: From Principles to Applications
Advanced Science, Volume 13, Issue 49, 3 September 2026.Light‐induced chirality represents a transformative paradigm for fabricating chiral nanostructures. This review provides a comprehensive framework encompassing light‐based strategies for imprinting and tuning chirality in nanomaterials, which guides researchers in harnessing light to create next‐generation functional materials.
Xinru Jin +3 more
wiley +1 more source
Journal of VibroengineeringThe purpose of this paper is to propose a new sound source identification method to identify and separate the sound sources generated by the cross-coupled vibration sources inside the cylindrical shell structure.
Jin-Tsan Wang, Lei Zhang, Guobing Chen
semanticscholar +1 more source
, 2004 Radiation of sound from a spherical piston, set in the side of a rigid sphere, undergoing harmonic radial surface vibrations in an acoustic halfspace is analyzed in an exact fashion using the classical method of separation of variables.
Azarpeyvand, Mahdi +3 more
core +1 more source