Arabela LUNGU


32-87 STUDIUL ABSORBŢIEI SONORE DE CĂTRE PLANTELE DE INTERIOR

STUDY OF SOUND ABSORPTION BY INTERIOR PLANTS
The paper contains a proof study on the sound absorbtion by ornamental plants (indoor). They have considered a lot of plants: Buxus Sempervirens, Thuja Occidentalis, Ficus Benjamina, Spathiphyllum and Philodendron Scadens Spatiphyllum, for which we have been made on the sound absorption measurement and came to some remarkable conclusions concerning absorbed soundtrack by these plants. In this paper it proves why some plants have more pronounced sound absorption than other plants. Demonstration is made by microscopic study of the leaf planting.
Keywords: pollution sound, absorption, houseplants
Cuvinte cheie: poluare sonorǎ, absorbție, plante de interior

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28-81 STUDII ŞI CERCETĂRI ASUPRA REDUCERII POLUĂRII SONORE DE CĂTRE PLANTE LA LOCUL DE MUNCĂ

STUDIES AND RESEARCHES ON NOISE REDUCTION
BY PLANTS AT WORKPLACE
This paper contains studies about how plants reduce noise indoors and which are the involved factors in this process. Also is giving information about the variation of acoustic absorption coefficient depending on plants species.
Keywords: pollution sonorǎ, absorption plants – acoustic absorbers
Cuvinte cheie: poluare sonorǎ, absorbție, plante – absorbanţi acustici

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26-25 STUDII ŞI CERCETĂRI PRIVIND POLUAREA SONORĂ ÎN HALELE INDUSTRIALE

STUDIES AND RESEARCH ON NOISE POLLUTION
IN INDUSTRIAL HALLS
This paper contains studies about the noise pollution, especially, în
industrial halls and the effects on the human body. Also, it Is giving us some
methods of reducing the noise pollution.
Keywords: sound pollution, intensity, pollution effects
Cuvinte cheie: poluare sonorǎ, intensitate, efecte
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