[Hygienic evaluation of the acoustic conditions inside the habitable compartments of the Russian segment of the International Space Station during increment one]. / Gigienicheskaia otsenka akusticheskoi obstanovki v zhilykh otsekakh rossiiskogo segmenta Mezhdunarodnoi kosmicheskoi stantsii v period raboty pervoi osnovnoi ékspeditsii.

Acoustic measurements made in the ISS RS as a part of the ground assembly testing and during ISS increment-I showed that noise at the RS workplaces was 1.3 to 4.8 dBA higher than during the assembly testing and exceeded the MIR noise values by 2.4 to 5.0 dBA. Comparison of the MIR and ISS RS acoustic environment revealed that most often inadmissible noise was characteristic of the same locations, i.e close to the air conditioner and system Vozdukh. Noise measurements in the Service Module crew quarters did not diverge significantly from results of the ground testing, and MIR noise monitoring. These data verified the necessity for spacecraft designers to predict noise levels and select noise-suppressing methods already on the phase of research and development.

[Sound-suppressing properties of textiles]. / Shumozaglushaiushchie svoistva tekstil'nykh materialov.

Development types of textile wallpapers and linen cloths (five samples of each) were tested for suppressing sounds in the range from 45 to 75 dBA. Based on test results, sound-suppressing properties of the development types were evaluated and acoustic efficiency as a function of textile thickness and number of layers was determined. Wallpaper Art 50T was found to be the best suppressor of both general sounds and the 2000-8000 Hz octave frequency bands.