Results 71 to 80 of about 4,534 (254)

Acoustic Propagation Characteristics of Acoustic Logging Instrument

Shiyou jixie, 2016
Most of the shells of the sonic logging tools in domestic are the results of imitation,which are unable to predict the sound insulation performance before manufacturing.To develop a shell with better sound insulation performance,the sound propagation ...
Wang He, Zhao Honglin, Che Xiaohua, Lu Junqiang, Duan Wenxing, Hu Dong   +5 more
doaj  

A Design Methodology Incorporating a Sound Insulation Prediction Model, Life Cycle Assessment (LCA), and Thermal Insulation: A Comparative Study of Various Cross-Laminated Timber (CLT) and Ribbed CLT-Based Floor Assemblies

Acoustics
Mass timber is increasingly being employed in constructing low- and mid-rise buildings. One of the primary reasons for using mass timber structures is their sustainability and ability to reduce environmental consequences in the building sector.
Mohamad Bader Eddin, Sylvain Ménard, Bertrand Laratte, Tingting Vogt Wu   +3 more
doaj   +1 more source

Machine Learning Driven Inverse Design of Broadband Acoustic Superscattering

Advanced Intelligent Discovery, EarlyView.
Multilayer acoustic superscatterers are designed using machine learning to achieve broadband superscattering and strong sound insulation. By incorporating a weighted mean absolute error into the loss function, the forward and inverse neural networks accurately map structural parameters to spectral responses.
Lijuan Fan, Xiangliang Zhang, Ying Wu
wiley   +1 more source

An Airborne and Impact Sound Insulation Analysis of 3D Woven Textiles on the Floor in Buildings

Buildings
Noise has detrimental effects on mental and physical health and quality of life, especially for those living in apartment buildings. Therefore, sound insulation materials are pivotal for reducing unwanted noise as well as enhancing acoustic comfort. This
Ngan Thanh Vu, Won-Kee Hong, Seong-Kyum Kim   +2 more
doaj   +1 more source

Ultrasonic Rainbow: A Meta‐Transducer for Frequency‐Selective Elastic Wave Control via Dithering‐Based Wavenumber Tuning

Advanced Intelligent Systems, EarlyView.
A piezoelectric meta‐transducer generates an ultrasonic rainbow, steering guided elastic waves to different angles according to frequency. A dithering‐based binary electrode design enables a closer realization of the target wavenumber filter, improving directional purity and suppressing unwanted lobes. Numerical and experimental validation demonstrates
Masoud Mohammadgholiha, Jochen Moll, Kilian Tschöke, Carsten Kruska, Sylvia E. Gebhardt, Luca De Marchi   +5 more
wiley   +1 more source

Advanced Rating Method of Airborne Sound Insulation

Applied Sciences, 2016
This paper describes an advanced calculation scheme based on the loudness level linked to the specific fluctuation strength yielding a weighted normalized loudness level difference as a single number value.
Reinhard O. Neubauer
doaj   +1 more source

Retracted: Preparation and Sound Insulation Performance of Polystyrene Building Flame Retardant and Thermal Insulation Building Materials. [PDF]

Int J Anal Chem, 2023
Chemistry IJOA.
europepmc   +1 more source

Disentangling Aleatoric and Epistemic Uncertainty in Physics‐Informed Neural Networks: Application to Insulation Material Degradation Prognostics

Advanced Intelligent Systems, EarlyView.
Physics‐Informed Neural Networks (PINNs) provide a framework for integrating physical laws with data. However, their application to Prognostics and Health Management (PHM) remains constrained by the limited uncertainty quantification (UQ) capabilities.
Ibai Ramirez, Jokin Alcibar, Joel Pino, Mikel Sanz, Jose I. Aizpurua   +4 more
wiley   +1 more source

Retracted: Impact Sound Insulation Performance Testing of Nano-Inorganic Composite Floor Slabs for Green Buildings. [PDF]

Int J Anal Chem, 2023
Chemistry IJOA.
europepmc   +1 more source

Experimental Characterization of Thermal, Acoustic, Magnetic, and Electrical Properties of Additive Manufactured Composites Reinforced With Ceramic Powders for Robotic Arms

Journal of Applied Polymer Science, Volume 142, Issue 16, April 20, 2025.
ABSTRACT An extensive experimental analysis was conducted to assess the thermal, acoustic, magnetic, and electrical properties of composite materials reinforced with varying ratios of silicon carbide (SiC) and alumina (Al₂O₃) powders, with a focus on enhancing the functionality of robotic arms.
Merdan Özkahraman, Mevlüt Yunus Kayacan, Ali Nadi Kaplan   +2 more
wiley   +1 more source