A novel environmentally friendly silencer concept for noise control in HVAC applications is
presented and its acoustic properties are studied in this paper. As a sustainable alternative …

To respond growingly strict environmental regulations the acousticians are challenging to
develop novel types of silencing elements. There are different types of flow duct elements …

... Micro perforated elements are innovative acoustic solutions, which silencing effect is
based on the dissipation of the acoustic wave energy in a pattern of sub-millimeter …

Recently fibreless solutions have become a trend in the design of sustainable and
environmentally friendly duct silencers. In this respect microperforated panels have been …

A new environmentally friendly sound absorbing material designed for vehicle noise
absorption and insulation applications is presented and its acoustic properties are studied in …

In current automotive research, increasing attention is being paid to the design of mufflers
due to the lower noise levels which have been established by the acoustic international …

应用一维平面波理论和四端网络法, 结合声波在细管中的传播特性简化声波传递过程中催化载体
流阻的计算, 推导了催化转换器传声损失的计算方法. 对传声损失进行理论计算 …

Green soundproofing acoustic porous materials are a valid alternative to traditional synthetic
materials. Green eco-friendly acoustic panels and other soundproofing solutions are made …

W artykule przedstawiono badania wybranego rodzaju połączenia układu wylotowego na
przykładzie elementu o określonym kącie wygięcia, łączącego kolektor wydechowy z …

Over the past few years, the Transition Metal Catalytic Converter (TMCC) has become a
standard of the exhaust system of internal combustion engines. Besides being used to …