Results 61 to 70 of about 3,088,219 (346)
Sound Absorption of Curtains [PDF]
The Journal of the Acoustical Society of America, 1970 The absorption of normal incident sound by a curtain hung flat before a wall depends on the flow resistivity and the weight of the material and the distance to the wall, as has been found experimentally and could be deduced theoretically. The same theory allows one to calculate the absorption for oblique incident and, also therefore, for statistical ...
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Sound Absorption Properties of Natural Fibers: A Review
Sustainability, 2020 In recent years, in an attempt to substitute the conventional synthetic sound absorption material, natural fibers and their sound absorption properties have been increasingly studied.
Tao Yang +6 more
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Bioprinting Organs—Science or Fiction?—A Review From Students to Students
Advanced Healthcare Materials, EarlyView.Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu +18 more
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Absorption by sound-absorbent spheres
Journal of Research of the National Bureau of Standards, 1949 The absorption of a plane wave of sound by a sphere is computed. The calculations are based on the assumption that the complex ratio of sound pressure at a point on the sphere's surface to the normal component of particle velocity is a constant independent of the direction of incidence (“normal impedance assumption”).
Richard K. Cook, Peter Chrzanowski
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Sound Absorption of Snow [PDF]
Nature, 1939 THE impressive and all-pervading quietness following a fall of snow is a commonplace experience, though, so far as we are aware, no measurements of the sound absorption of snow have been published. The recent cold spell provided a suitable opportunity to make such measurements in the reverberation chamber of the National Physical Laboratory.
G. W. C. KAYE, E. J. EVANS
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Advanced Healthcare Materials, EarlyView.This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre +3 more
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Advanced Healthcare Materials, EarlyView.A multilayered small‐caliber vascular scaffold combining electrospinning and 4‐axis printing is developed and biofunctionalized with marine sulfated polysaccharides from Holothuria tubulosa. The resulting construct exhibits enhanced hemocompatibility, tunable mechanical properties, and supports endothelial and smooth muscle cell adhesion and ...
Gabriele Obino +9 more
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Advances in Mechanical Engineering, 2015 Porous metal materials are widely used in noise control with high sound pressure applications such as aircraft engine liners and combustion chambers for rocket engines due to their excellent performance of sound absorption characteristics and ...
Xiaopeng Wang +3 more
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Results in Physics, 2019 Although the conventional locally resonant acoustic metamaterials (LRAMs) have shown better sound absorption performance in the low frequency band, the effective frequency range of the sound absorption performance is quite narrow relatively.
Kangkang Shi +4 more
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Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction
Advanced Healthcare Materials, EarlyView.Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang +4 more
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