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Effects of different irrigation lower limits and combined application of reduced nitrogen with organic fertilizer on spring-season tomatoes (Solanum lycopersicum). [PDF]

PLoS One
Li HJ, Huang Y, Yu JX, Tian GY, Gao XN, Kang YF, Du YR, Wu YY, Yang YR.   +8 more
europepmc   +1 more source

Does the method matter? Evaluating the effectiveness, efficiency and ease of hearing-aid gain self-adjustment

Benecke J, Whitmer WM.
europepmc   +1 more source

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Acoustic classification with the descriptor of the weighted standardized level difference DnT,w with use of the weighted apparent sound reduction index R'w

INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2023
Buildings must ensure sound insulation appropriate to their use. This sound insulation is regulated by building regulations. In many Europe countries this is by use of the weighted apparent sound reduction index R'w or the weighted standardized level difference DnT,w.
R. Neubauer
exaly   +4 more sources

Experimental study on noise reduction and ventilation performances of sound-proofed ventilation window

Building and Environment, 2020
The sound-proofed ventilation window (SPVW) is experimentally investigated in the present study for reducing noise transmission and supplying sufficient air for an arbitrary space.
Siu-Kit Lau, Liangfen Du
exaly   +2 more sources

Theoretical Determination of Sound Reduction Index of Simple Walls on Various Material Bases

Applied Mechanics and Materials, 2016
Rastislav Mendan
exaly   +2 more sources

Sound intensity and sound reduction index

Applied Acoustics, 1993
H. Jonasson
exaly   +2 more sources

Analysis between weighted sound reduction index according to ISO 717-1 and indices according to ISO 16717-1

, 2013
The “Weighted sound redution index”, Rw, described in ISO 717-1 standard, is considered a fundamental parameter for the comparison in laboratory of different building systems. This index considers a 1/3 octave band frequency range, between 100 Hz and 3150 Hz, which may not be sufficient for a satisfactory description of the behavior at low and high ...
GRANZOTTO, NICOLA, DI BELLA, ANTONINO
openaire   +2 more sources

The drying process influence on the brick walls sound reduction index: laboratory evaluations and theoretical analysis

, 2008
This paper presents the experimental results concerning the sound reduction index of different types of brick walls; the analysis was in particular carried out on double walls, single walls and single walls with external lining.
C. Scrosati, F. Scamoni, Felipe Valentini   +2 more
semanticscholar   +2 more sources

The impact of China's traffic noise spectrum on the Single-number-quantities (SNQs) evaluation of airborne sound insulation in the new era

INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2023
The ISO 717-1 specified the weighted sound reduction index calculation method of airborne sound insulation, also includes two spectrum adaptation terms C and Ctr, to take into account different spectra of environmental and living noises.
Yang-Sheng Cai
semanticscholar   +1 more source

The effect of suspension systems on the sound insulation of suspended ceilings: A finite element analysis

Journal of the Acoustical Society of America, 2023
It has been shown via laboratory measurements that the airborne and impact sound insulation of a concrete floor structure with a suspended plasterboard ceiling can be improved by using elastic ceiling suspension systems.
J. Lietzén, Ville Kovalainen, Lauri Talus, M. Kylliäinen, Aitor Lopetegi, Ander Aldalur   +5 more
semanticscholar   +1 more source