Results 51 to 60 of about 103,759 (256)

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

Advanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Numerical Optimization and Experimental Study on the Acoustic Broadband Characteristics of Perforated Plates Collaborating With Snowflake Film Metamaterials

Shock and Vibration
Automobiles have become ubiquitous in daily life. With the continuous development of the automotive industry, people’s expectations for driving comfort are also increasing.
Zhenhua Hou, Ke Zhang, Zhenfu Zhou, Libo Wang   +3 more
doaj   +1 more source

Atmospheric absorption adjustments for bands of noise [PDF]

The Journal of the Acoustical Society of America, 1978
A new procedure has been developed for determining the absorption experienced by pure-tone sound waves propagating through the atmosphere. The procedure, which accounts for classical absorption processes (viscosity and heat conduction) as well as molecular energy transfer mechanisms, has a firm theoretical basis, has been extensively verified by ...
openaire   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Design and validation of a new asphalt mixture to reduce road traffic noise pollution in urban areas

Case Studies in Construction Materials
The aim of this paper is to design a novel asphalt mixture capable of reducing tyre/pavement interaction noise for urban roads at speeds around 50 km/h. To this end, various mechanical and functional tests were carried out both in the laboratory and on a
Helena Miera-Dominguez, Pedro Lastra-González, Irune Indacoechea-Vega, Ronald van Loon, Gijsjan van Blokland, Gaetano Licitra, Antonino Moro, Daniel Castro-Fresno, Simon Kanka   +8 more
doaj   +1 more source

A Review: Characteristics of Noise Absorption Material

Journal of Physics: Conference Series, 2017
Noise is always treated as a nuisance to human and even noise pollution appears in the environmental causing discomfort. This also concerns the engineering design that tends to cultivate this noise propagation. Solution such as using material to absorb the sound have been widely used.
S Amares, E Sujatmika, T W Hong, R Durairaj, H S H B Hamid   +4 more
openaire   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Study on the sound absorption characteristics and noise reduction mechanism of coconut-shell-activated carbon particles and coconut fiber composite biomass sound-absorption materials

Materials Research Express
Sound-absorbing materials are widely used in the field of automotive industry. Biomass materials are abundant in the nature, some of which have natural sound absorption and noise reduction properties.
Zhenhua Hou, Xiaoying Ma, Liai Pan, Rui Zhang, Libo Wang   +4 more
doaj   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

Advanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao, Sriram Subramanian, Gianluca Memoli   +2 more
wiley   +1 more source

Experimental Study of Advanced Helmholtz Resonator Liners with Increased Acoustic Performance by Utilising Material Damping Effects

Applied Sciences, 2018
In aero engines, noise absorption is realised by acoustic liners, e.g., Helmholtz resonator (HR) liners, which often absorb sound only in a narrow frequency range.
Martin Dannemann, Michael Kucher, Eckart Kunze, Niels Modler, Karsten Knobloch, Lars Enghardt, Ennes Sarradj, Klaus Höschler   +7 more
doaj   +1 more source