Results 71 to 80 of about 399,393 (305)
Constant-pressure sound waves in non-Hermitian disordered media
, 2018 When waves impinge on a disordered material they are back-scattered and form a highly complex interference pattern. Suppressing any such distortions in the free propagation of a wave is a challenging task with many applications in a number of different ...
Brandstötter, Andre +5 more
core +2 more sources
Advanced Materials Technologies, EarlyView.Roll‐to‐roll direct‐current sputtering enables room‐temperature manufacture of flexible bismuth telluride thermoelectric films. By identifying a low‐power deposition window that suppresses charge‐induced arcing, this work links sputtering conditions to film structure, charge transport, and thermoelectric performance, achieving a room‐temperature figure
Xudong Tao +5 more
wiley +1 more source
بهداشت و ایمنی کار, 2019 Introduction: Nowadays multiple techniques have been developed to noise control. One the most important way is the control based on sound absorption and insulation.
Roohalah Hajizadeh +4 more
doaj
A research to reduce interior noise in general aviation airplanes. General aviation interior noise study [PDF]
The construction, calibration, and properties of a facility for measuring sound transmission through aircraft type panels are described along with the theoretical and empirical methods used.
Muirhead, V. U. +3 more
core +1 more source
Sound Transmission Loss of Complex Single Panels [PDF]
The Journal of the Acoustical Society of America, 1971 Frequently, the transmission loss of panels must be estimated from limited data for use in design problems. Usually, the panels involve complex constructions where the assumptions of single-panel theory cannot be reasonably applied. A simplified analysis of the dynamics of some complex panels is presented which leads to a straight-forward prediction ...
openaire +1 more source
Advanced Materials Technologies, EarlyView.This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane +4 more
wiley +1 more source
Transmission loss predictions for dissipative silencers of arbitrary cross section in the presence of mean flow [PDF]
, 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 ...
Aurégan Y. +8 more
core +1 more source
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
Acoustic Propagation and Transmission Loss Analysis in Shallow Water of Northern Arabian Sea
Journal of Marine Science and EngineeringThis study investigates acoustic propagation and transmission loss in shallow water at an unexplored site in the northern Arabian Sea near the Pakistan coastline using a normal mode theoretical framework.
Shahabuddin Shaikh +6 more
doaj +1 more source
A study of methods of prediction and measurement of the transmission of sound through the walls of light aircraft [PDF]
The acoustic intensity technique was applied to the sound transmission loss of panel structures (single, composite, and stiffened).
Crocker, M. J. +3 more
core +1 more source