Results 71 to 80 of about 8,510,695 (213)

The Effect of Noise Reduction Measures on the Perception of Railway Noise

, 2015
The A-weighted sound pressure level is a commonly used quantity to assess the effect of noise reduction measures. However, psychoacoustic variables, in particular loudness, are assumed to better explain perceived annoyance.
Kaseß, Christian, Maly, Thomas, Majdak, Piotr, Waubke, Holger   +3 more
core  

Influence of Ambient Noise Source Distributions on Cross-correlation Derived Seismic Waveforms and Dispersion Curve Retrieval

CT Lilun yu yingyong yanjiu
Dense-array observation has become a key method for obtaining high-resolution subsurface structures. However, the spatiotemporal heterogeneity of the noise source distribution significantly reduces the signal-to-noise ratio (SNR) of noise correlation ...
Weiyu FENG, Xuzhang SHEN, Jiawei TAN, Wentian WANG   +3 more
doaj   +1 more source

Noise shielding models for the conceptual design of unconventional aircraft

, 2018
Air traffic growth and the expansion of urban areas around airports make the aviation community noise a key aspect of aircraft design. The analysis of innovative configurations is becoming activity of primary interest within the scientific community. The
Centracchio F., Rossetti M., Iemma U., Burghignoli L.   +3 more
core  

Abatement of traffic, vehicle, and tire/road noise - the global perspective

, 2001
Road traffic noise may be reduced by measures directed either at the emission or at the immission. Emission control aims at controlling noise at the source and is usually achieved by limiting the vehicle speed, controlling emitted noise levels of the ...
Sandberg, Ulf, Sandberg, Ulf,
core   +1 more source

Influence of Noise Level and Reverberation on Children’s Performance and Effort in Primary Schools

Applied Sciences
Classroom acoustics and noise exposure significantly impact students’ emotional, cognitive, and academic well-being. This study investigates how classroom noise and acoustics affect auditory and cognitive performance among 131 children in three primary ...
Ilaria Pittana, Cora Pavarin, Irene Pavanello, Antonino Di Bella, Piercarlo Romagnoni, Pietro Scimemi, Francesca Cappelletti   +6 more
doaj   +1 more source

Unlocking the Potential of Cost-Effective Alternative for Noise Abatement: A Case study of Existing Short Concrete Barriers in Maryland

The cost, logistics, and timeline of building and deployment of tall noise barriers take a toll on state department of transportation. Adopting a cost benefit analysis, several communities cannot benefit from the construction of tall noise barriers, yet ...
Lodico, Dana, Owolabi, Oludare Adegbola, Abiodun, Pelumi O., Darko, Cornelius, Butterfield, Emma, Duru, Chichedo   +5 more
core   +1 more source

Modelling techniques for underwater noise generated by tidal turbines in shallow water

, 2011
The modelling of underwater noise sources and their potential impact on the marine environment is considered, focusing on tidal turbines in shallow water.
Humphrey, Victor F., Turnock, Stephen R., Lloyd, Thomas P.   +2 more
core   +1 more source

The relation between particle number concentration and high frequency sound level of traffic noise

, 2017
Relation between particle number concentration (PNC) and traffic conditions were investigated through field measurements and statistical analysis. Traffic data for 24 hours in an urban area where close to three traffic roads, and the particle number ...
Jeon, Jin Yong, Kim, Sung Min, Hong, Joo Young   +2 more
core  

Wind turbine noise emission: comparison between measurement results and propagation model

, 2022
Wind energy is a valid alternative resource in place of fossil fuel to produce electricity, representing also a great contribution to reduce atmospheric pollution.
Iannace G., Bevilacqua A., Lombardi I.
core  

Energy-Limited Joint Source-Channel Coding of Gaussian Sources over Gaussian Channels with Unknown Noise Level. [PDF]

Entropy (Basel), 2023
Lev O, Khina A.
europepmc   +1 more source