نتایج جستجو برای: natural absorbents
تعداد نتایج: 482092 فیلتر نتایج به سال:
Journal:
:RADIOISOTOPES
1997
Journal:
:Journal of the Air Pollution Control Association
1983
Journal:
:Energy Procedia
2011
Journal:
:Sen'i Gakkaishi
1991
Journal:
:Anaesthesia
2009
Journal:
:Proceedings
2020
Journal:
:Scientific Reports
2014
ژورنال:
انجمن مهندسی صوتیات ایران
2019
Porous materials have good acoustic damping characteristics over a wide frequency range. As for sound waves, many small-scale pores in the coating materials can convert underwater-coating to rough surfaces. The main property of porous absorbents is their resistance against incident sound wave that leads to damping effect. From a physical point of view, damping occurs due to friction between flu...
Journal:
:Biotechnology for Biofuels
2015
Journal:
:The Boston Medical and Surgical Journal
1922
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