Results 81 to 90 of about 1,553,727 (355)

Low-frequency sound source localization as a function of closed acoustic spaces [PDF]

open access: yes, 2013
Further development of an emerging generalized theory of low-frequency sound localization in closed listening spaces is presented that aims to resolve the ambiguities inherent in previous research.
Hawksford, Malcolm O. J., Hill, Adam J.
core   +1 more source

Nonlinear Acoustics at GHz Frequencies in a Viscoelastic Fragile Glass Former [PDF]

open access: yes, 2014
Using a picosecond pump-probe ultrasonic technique, we study the propagation of high-amplitude, laser-generated longitudinal coherent acoustic pulses in the viscoelastic fragile glass former DC704. We observe an increase of almost ten percent in acoustic
Gusev, Vitalyi E.   +3 more
core   +3 more sources

Sound Absorption of Hydroponically Grown Plants

open access: yesAcoustics
Hydroponics is a method of growing plants without soil and serves as an efficient agricultural production system. Compared to traditional farming, hydroponic crops offer significant water savings while also reducing the need for chemical pesticides by ...
G. Iannace   +3 more
semanticscholar   +1 more source

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

open access: yesAdvanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng   +9 more
wiley   +1 more source

Utilization and Study of Raw Groundnut Shell as a Source of Sound Absorbing Material

open access: yesJournal of Natural Fibers, 2022
Natural biodegradable materials have the potential of an alternative traditional sound-absorbing material. These materials have the advantages of low cost, light in weight, easily available, eco-friendly, and nonpolluting.
Ulhas A. Malawade   +3 more
doaj   +1 more source

Seabed Attenuation In Water Saturated Sands On New Jersey Continental Shelf In 50-3000 Hz Band [PDF]

open access: yes, 2010
The Shallow Water 2006 ocean acoustics experiment on the New Jersey continental shelf was designed in part to determine the frequency dependence of sound speed and attenuation for a sandy sediment in the 50-3000 Hz band.
Knobles, D. P.
core   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

open access: yesAdvanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana   +11 more
wiley   +1 more source

Local Thermal Conductivity Patterning in Rotating Lattice Crystals of Anisotropic Sb2S3

open access: yesAdvanced Functional Materials, EarlyView.
Microscale control of thermal conductivity in Sb2S3 is demonstrated via laser‐induced rotating lattice crystals. Thermal conductivity imaging reveals marked thermal transport anisotropy, with the c axis featuring amorphous‐like transport, whereas in‐plane directions (a, b) exhibit 3.5x and 1.7x larger thermal conductivity.
Eleonora Isotta   +13 more
wiley   +1 more source

Kajian tentang Kemungkinan Pemanfaatan Bahan Serat Ijuk sebagai Bahan Penyerap Suara Ramah Lingkungan

open access: yesJurnal Rekayasa Kimia & Lingkungan, 2009
The probability of application of palm fibre from arenga pinnata appear as best treatment for sound absorption material which can be used in controlling noise.
Zulfian Zulfian, Muhammad Sajidin
doaj   +2 more sources

Subjective evaluation of an emerging theory of low-frequency sound source localization in closed acoustic spaces [PDF]

open access: yes, 2014
An earlier reported theory of low-frequency sound-source localization within closed acoustic spaces proposed that virtual image acuity is strongly dependent on sufficient inter-arrival time between a direct sound and its first reflection.
Hawksford, Malcolm O. J., Hill, Adam J.
core  

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