Results 61 to 70 of about 1,654 (289)

Scale modeling in architectural acoustics [PDF]

The Journal of the Acoustical Society of America, 1984
Several types of models are available to the acoustician for the study of room acoustics. Although mathematical modeling has now become popular, due to recent advances in computer technology, the author chose to use scale modeling techniques. A 1:10 scale model was constructed to study the sound field above the audience in a large lecture hall.
Jiri Tichy, David W. Kahn
openaire   +2 more sources

Anisotropic Shear Properties of Organic Interfaces in Bio‐composite Materials

Advanced Functional Materials, EarlyView.
A novel cantilever design enables direct probing of shear properties at single organic interfaces within biocomposite prismatic ultrastructures. By decoupling lateral and torsional shear responses, the method reveals isotropic behavior in Atrina vexillum and pronounced anisotropy in Unio pictorum.
Kian Tadayon, Benny Bar‐On, Igor Zlotnikov   +2 more
wiley   +1 more source

Comparison of Impulse Response Generation Methods for a Simple Shoebox-Shaped Room

Acoustics
Simulated room impulse responses (RIRs) are important tools for studying architectural acoustics. Many methods exist to generate RIRs, each with unique properties that need to be considered when choosing an RIR synthesis technique.
Lloyd May, Nima Farzaneh, Orchisama Das, Jonathan S. Abel   +3 more
doaj   +1 more source

Professor Jerzy Sadowski 1924–2014

Archives of Acoustics, 2015
Professor Jerzy Sadowski – outstanding Polish scientist, a specialist in acoustics – construction, industrial, architectural and environmental – passed away on 28th July 2014.
Barbara SZUDROWICZ
doaj   +1 more source

Acoustic Characterization of a Room: Study Case Between Simulation and a Portable Method

Archives of Acoustics, 2020
Large venues and auditoriums are commonly associated with their astounding architecture. Their acoustic quality is an essential factor in its qualification as a great and functional, or a badly designed place.
David IBARRA-ZARATE, Ana Laura PADILLA-ORTIZ   +1 more
doaj   +1 more source

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

Advanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh, Ankita Mohanty, Amit Malakar, Suryasarathi Bose, Suprakas Sinha Ray   +4 more
wiley   +1 more source

Device Integration Technology for Practical Flexible Electronics Systems

Advanced Functional Materials, EarlyView.
Flexible device integration technologies are essential for realizing practical flexible electronic systems. In this review paper, wiring and bonding techniques critical for the industrial‐scale manufacturing of wearable devices are emphasized based on flexible electronics.
Masahito Takakuwa, Kento Yamagishi, Sunghoon Lee, Yusaku Tagawa, Takao Someya, Tomoyuki Yokota   +5 more
wiley   +1 more source

Wafer‐Scale Integration of α‐quartz Thin Films toward Super High Frequency Piezoelectric bioNEMS for Chikungunya Virus Detection

Advanced Functional Materials, EarlyView.
Epitaxial piezoelectric α‐quartz/Si BioNEMS sensors, made using soft chemistry, effectively detect the Chikungunya virus. They have a mass sensitivity of 205 pg Hz−1 in liquid and can detect the virus at a limit of 9 ng mL−1. This development enables high‐frequency mass devices for point‐of‐care testing in healthcare and other electronic applications ...
Raissa Rathar, Sijie Ding, David Sanchez‐Fuentes, Claire Jolly, Charlotte André‐Arpin, Rudy Desgarceaux, Nicolas Guillaume, Gustavo Ardila, Ricardo Garcia‐Bermejo, Jaume Gazquez, Sergi Plana‐Ruiz, Laura Picas, Adrian Carretero‐Genevrier   +12 more
wiley   +1 more source

A Double Synthetic Index to Evaluate the Acoustics of Churches

Archives of Acoustics, 2013
Several authors have proposed indices to synthesize the acoustics of a space, especially of concert halls. Meanwhile, a few studies have focused on the acoustics of worship spaces.
Umberto BERARDI
doaj  

Tunable and Recyclable Piezoelectric Biomaterials via Ion‐Directed Guanine‐Quadruplex Assembly

Advanced Functional Materials, EarlyView.
Guanine‐quadruplex (GQ) assemblies, formed via ion‐mediated self‐assembly of amphiphilic guanine derivatives, are introduced as tunable and recyclable piezoelectric biomaterials. Distinct alkali ions induce unique dipole configurations and piezoelectric outputs, with K⁺ yielding the highest performance.
Seungho Lee, Sangyun Na, Yumi Cho, Gaeun Park, Seung Hak Oh, Jaejun Kim, Byoung‐Ki Cho, Sang Kyu Kwak, Ja‐Hyoung Ryu, Hyunhyub Ko   +9 more
wiley   +1 more source