Results 61 to 70 of about 84,837 (199)

Sound radiation and sound insulation performances of maritime bulkheads

, 2019
The research of materials matching low weight and high resistance has always been a key factor in the shipbuilding industry to increase performances and loading capacity. Nowadays, other issues add up to economical convenience, and building quiet ships is important not only for passengers and cabin crew, but also to make harbor areas more comfortable ...
Piana E. A., Carlsson U., Feng L., Guzzo M.   +3 more
openaire   +1 more source

Method and device for detecting voids in low density material Patent [PDF]

, 1971
Method and photodetector device for locating abnormal voids in low density ...
Howard, W. D., Vukelich, E. K.
core   +1 more source

Characterization of porous acoustic materials applied to lightweight partition walls [PDF]

, 2011
The increased need to save material and energetic resources, allied with a growing concern on the environmental issues and incertitude on the evolution of the economy, has impelled minimalist-approaches to Architecture and Engineering, reducing to the ...
Fangueiro, Raúl, Macieira, Mónica, Mendonça, Paulo, Velosa, J. C.   +3 more
core  

Comparison of Sound Insulation Performance of Water Drop and Trapezoidal Sound Barriers

International Journal of Advances in Engineering and Pure Sciences
With increasing urbanization and industrialization, noise pollution has become a significant environmental issue. This study compares the sound insulation performance of two different sound barrier designs: water drop and trapezoidal. COMSOL Multiphysics software for computational simulations is used to calculate sound transmission loss (STL).
Arif Doğan, Ahmet Aslandağ, Paşa Yayla   +2 more
openaire   +2 more sources

Deep residual neural network for EMI event classification using bispectrum representation [PDF]

, 2018
This paper presents a novel method for condition monitoring of High Voltage (HV) power plant equipment through analysis of discharge signals. These discharge signals are measured using the Electromagnetic Interference (EMI) method and processed using ...
Boreham, Philip, Jenkins, Mark David, Mitiche, Imene, Morison, Gordon, Nesbitt, Alan, Stewart, Brian G.   +5 more
core   +2 more sources

Experimental and numerical study of the acoustic performance of a novel composite core thermal break

Case Studies in Construction Materials
This study assesses the acoustic performance of a novel thermal break system with composite cores through both experimental testing and Finite element (FE) analysis. The research explores the effects of varying the thicknesses of key materials, including
Tran-Van Han, Gayoon Lee, Yun-Seong Shin, Sungwoo Woo, Kihak Lee   +4 more
doaj   +1 more source

Characterization and Optimization of Sound Transmission Loss of PVC Foam Sandwich Structure Reinforced by Carbon Fiber Columns

Journal of Marine Science and Engineering
This study presents a foam sandwich structure reinforced with carbon fiber columns (FSS-CFC), which exhibits strong mechanical and sound insulation properties.
Kangle Li, Zhiwei Zhou, Jichao Lei, Lixian Wang, Wenkai Dong, Yongbo Jiang, Ying Li   +6 more
doaj   +1 more source

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

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