Results 101 to 110 of about 99,340 (315)
Estimation of Sound Transmission Loss in Nanofiber Nonwoven Fabrics: Comparison of Conventional Models and the Simplified Limp Frame Model. [PDF]
Nanomaterials (Basel), 2023 Sakamoto S, Hasegawa T, Ikeda K.
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, 2003 A numerical technique is developed for the analysis of dissipative silencers of arbitrary, but axially uniform, cross section. Mean gas flow is included in a central airway which is separated from a bulk reacting porous material by a concentric ...
Kirby, R, Ray Kirby
core +1 more source
Disorder‐Induced Extremely Low Thermal Conductivity of Graphite Fluoride
Advanced Science, EarlyView.This article investigates the effect of fluorination on the thermal conductivity of graphite fluoride, demonstrating the relationship between structural modification and thermal conductivity in an extreme case. The record‐low through‐plane thermal conductivity measured in exfoliated graphite fluoride flakes was found to correlate with the wide ...
Wonsik Lee +10 more
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AIP AdvancesIn the process of using laser interference calibration method to calibrate high-frequency hydrophones, a transparent reflective film will be used. This article studies the influence of the film on the calibration results.
Chang Yi +8 more
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Free vibration and sound transmission properties of beetle elytron plate: structural parametric analysis. [PDF]
Heliyon, 2022 Hao N +5 more
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ON THE SOUND TRANSMISSION IN SAND
Transactions of the Japan Society of Civil Engineers, 1953 In this paper, the author has studied on the dissipative effect of sand on the propagation of sound waves, and compared the experimental result with the theoretical conclusion of the propagation of sound in the capillary pipes with viscous absorption.
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On Determination Method for Resolution of Secondary Electron Images in Scanning Electron Microscopy
Advanced Science, EarlyView.An idealized SEM, termed Rayleigh's microscope, is constructed by Monte Carlo simulation to represent imaging conditions that just satisfy the Rayleigh criterion. Based on this physically defined model, sharpness–resolution conversion curves are established and combined with the Rose criterion, enabling automated resolution evaluation from practical ...
Tongfang Yang, Yanbo Zou, Zejun Ding
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Design and optimization of sound package using FE-SEA numerical reverberation method
Zhongguo Jianchuan Yanjiu, 2017 To solve the low efficiency problem of the conventional sound package, the FE-SEA numerical reverberation method is applied in the design and optimization of sound packages in the whole frequency domain.
YANG Deqing, SHI Jiaxin, YU Yang
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Influence of Magnetic Field on Sound Transmission Loss of the Unit Filled with Magnetorheological Fluid. [PDF]
Materials (Basel), 2022 Xu X, Wang Y, Wang Y.
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Advanced Science, EarlyView.A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang +11 more
wiley +1 more source