Results 61 to 70 of about 1,158,358 (233)
Perforation Enhances Sound Insulation in Plate Lattice Metamaterials
Small, EarlyView.Herein, perforations are engineered into face‐centered cubic plate lattice metamaterials to convert normally detrimental openings into acoustically active features. Experiments, finite‐element analyses, and a reduced‐order transfer‐matrix model show that selected perforation geometries activate Helmholtz‐like and cavity‐mediated resonances, enhancing ...
Jing Heng Tan +3 more
wiley +1 more source
UNCERTAINTY ANALYSIS OF LABORATORY MEASUREMENT OF AIRBORNE SOUND INSULATION
Spektra: Jurnal Fisika dan Aplikasinya, 2020 The evaluation and analysis of the uncertainty of laboratory measurement of airborne sound insulation have been carried out by Research Group for Acoustics and Vibration – National Standardization Agency of Indonesia (BSN).
Bondan Dwisetyo +2 more
doaj +1 more source
Associated Students of the University of Puget Sound Senate Minutes 1990-1991 [PDF]
, 1990 Meeting minutes of the Associated Students of the University of Puget Sound from 09/1990 - 05/1991.
Associated Students of the University of Puget Sound,
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Programmable Porosity in Polymers via Microfluidic Templating and 3D Printing
Small Methods, EarlyView.Fluid templating is a powerful way to produce porous polymers. Microfluidic technologies enable fine control over the dimension and packing of bubbles and droplets. Combined with additive manufacturing, microfluidic templating enables the creation of polymeric functionally graded porous materials in which both porosity and three‐dimensional geometry ...
Federico Serpe +3 more
wiley +1 more source
Airborne sound insulation of new composite wall structures
MATEC Web of Conferences, 2018 Protection against noise is one of the essential requirements of the European Construction Product directive. In buildings, airborne sound insulation is used to define the acoustical quality between rooms. In order to develop wall structures with optimal
Ivanova Yonka +3 more
doaj +1 more source
Method for the Study of the Localization of Airborne Sound [PDF]
The Journal of the Acoustical Society of America, 1955 The three papers to follow present results on the localization of airborne sound, using the same subjects, the same environment—an anechoic room, and the same method for indicating the position of the stimulus to be localized. Three small loudspeakers in enclosures mounted on pedestals at ear-height and equidistant from the subject were used as ...
openaire +1 more source
Associated Students of the University of Puget Sound Senate Minutes 1993-1994 [PDF]
, 1993 Meeting minutes of the Associated Students of the University of Puget Sound from 09/1993 - 05/1994.
Associated Students of the University of Puget Sound,
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Alignment of Agile and Modular Open Systems Approach (MOSA) Principles in Systems Engineering
Systems Engineering, EarlyView.ABSTRACT Organizations have consistently sought faster and more efficient methods for producing and delivering products. Agile principles offer essential guidance for shaping their policies and practices. The Agile Manifesto (AM) outlines 12 core principles for guiding software development but can also be applied in other contexts.
Terry Plonsky, Daniel R. Herber
wiley +1 more source
Associated Students of the University of Puget Sound Senate Minutes 2009-2010 [PDF]
, 2009 Meeting minutes of the Associated Students of the University of Puget Sound from 09/2009 - 04/2010.
Associated Students of the University of Puget Sound (ASUPS)
core
X-Ray Spectrometry, EarlyView.ABSTRACT Crystalline quartz, the most common crystalline silica polymorph, is widely found in industrial products. It is of high regulatory relevance, because its fine fraction, a form of respirable crystalline silica, is classified as an occupational carcinogen, with product‐content thresholds (e.g., 0.1% (w/w) in the European Union) and stringent ...
Giacomo Siviero +3 more
wiley +1 more source