Results 111 to 120 of about 194,541 (227)

Effect of Heat Treatment Temperature and Time on Sound Absorption Coefficient of Larix kaempferi Wood [PDF]

open access: yes, 2016
학위논문 (석사)-- 서울대학교 대학원 : 산림과학부 환경재료과학전공, 2016. 8. 여환명.목재는 다양한 재색과 문양을 지니고 가공이 용이하며 타 재료에 비해 비교적 높은 비강도를 가져 건축 인테리어 재료로서 많이 사용되어왔다. 특히 목재에 고온의 열을 가해 목재의 구성성분을 변형시킴으로써 성질을 개선한 열처리 목재는 소수성이 증가하여 치수안정성이 개선되고 별도의 표면처리 없이도 고급스러운 재색의 연출이 가능하다는 장점을 가져 새로운 건축 인테리어
정현우
core  

Type on the Sound Absorption Coefficient Chicken Feather Composite

open access: yes
the potential to be a composite reinforcement and increase sound absorption through the Chemical Pulping process. This study aims to investigate the alleged influence of the use of matrix type on the strength of sound absorption in chicken feather fiber ...
Kusno, Asniawaty   +3 more
core  

Determination of Wall Absorption Coefficient

open access: yes, 2015
Výsledkem této práce má být stanovení středního součinitele pohltivosti stěn v určité laboratoři. Zvolená byla akustická laboratoř Ústavu techniky prostředí ČVUT. V kapitole ZVUK A HLUK jsou rozepsány základní pojmy akustiky.
Mustafina Elena
core  

Sound Absorption Coefficient of a Fiber Assembly

open access: yesJournal of the Textile Machinery of Japan - Proceedings -, 1965
Asao, S, Kinoshita, R
openaire   +2 more sources

Measurements of the Sound Absorption Coefficient of Auditorium Seats for Various Geometries of the Samples

open access: yes, 2011
This paper presents the results of measurements of the sound absorption coefficient of auditorium seats carried out in the laboratory using two methods.
Rubacha, J.   +5 more
core  

Sound absorption coefficient from composites made from coconut fiber, paper, and styrofoam

open access: yes
Noise is an unpleasant/undesirable sound. Apart from noise, environmental problems are often faced by the community in the form of organic and inorganic waste resulting from several small/large industrial activities.
Maghfiroh, Amalia Ma\u27rifatul
core   +2 more sources

In situ measurements of the oblique incidence sound absorption coefficient for finite sized absorbers.

open access: yesJournal of the Acoustical Society of America, 2016
Marco Ottink   +5 more
semanticscholar   +1 more source

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