Results 91 to 100 of about 96,792 (346)
Novel Functional Materials via 3D Printing by Vat Photopolymerization
Advanced Functional Materials, EarlyView.This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov +3 more
wiley +1 more source
Attenuation of sound in ducts with acoustic treatment: A generalized approximate equation [PDF]
A generalized approximate equation for duct lining sound attenuation is presented. The specification of two parameters, the maximum possible attenuation and the optimum wall acoustic impedance is shown to completely determine the sound attenuation for ...
Rice, E. J.
core +1 more source
s‐Orbital Mediated Metavalent Bonding Enables State‐Of‐The‐Art n‐Type AgBiSe2 Thermoelectrics
Advanced Functional Materials, EarlyView.Metavalent bonding (MVB) underpins the exceptional property portfolio of chalcogenides. Typical MVB solids are mainly found in p‐bonded systems. This work reveals that MVB can also be formed with s‐p orbital interactions upon forming a single‐electron σ‐bond, as exemplified in AgBiSe2.
Binrong Huang +13 more
wiley +1 more source
AiResearch QCGAT engine: Acoustic test results [PDF]
, 1980 The noise levels of the quiet, general aviation turbofan (QCGAT) engine were measured in ground static noise tests. The static noise levels were found to be markedly lower than the demonstrably quiet AiResearch model TFE731 engine.
Kisner, L. S.
core +1 more source
Simplified Acoustic Impedance Measurements [PDF]
The Journal of the Acoustical Society of America, 1949 This paper describes an impedance measuring assembly consisting of a piston and pressure microphone arranged in such a manner that the ratio of the pressure to the particle velocity may be measured in both magnitude and phase at the surface of the piston. The assembly measures the driving point impedance at the surface of the piston.
openaire +1 more source
Advanced Functional Materials, EarlyView.Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley +1 more source
Journal of Applied Sciences and Environmental Management, 2019 This study presents the result of a Model-based seismic inversion technique which was used to invert an acoustic impedance structure within a reservoir interval by intergrating well logs and 3D post stack seismic data obtained from XY field offshore ...
S. Eze +3 more
doaj +1 more source
Acoustic Impedance Measurement through the Modelling of Ultrasonic Wave Transmission* [PDF]
, 2021 Ryuugo Mochizuki +2 more
openalex +1 more source
Advanced Healthcare Materials, EarlyView.This study introduces an innovative approach to treating intervertebral disc degeneration using ultrasound‐triggered in situ hydrogel formation. Proof‐of‐concept experiments using optimized biomaterial and ultrasound parameters demonstrate partial restoration of biomechanical function and successful integration into degenerated disc tissue, offering a ...
Veerle A. Brans +11 more
wiley +1 more source
Method of Adjusting Acoustic Impedances for Impedance-Tunable Acoustic Segments [PDF]
, 2012 A method is provided for making localized decisions and taking localized actions to achieve a global solution. In an embodiment of the present invention, acoustic impedances for impedance-tunable acoustic segments are adjusted.
Jones, Kennie H +4 more
core +1 more source