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6.419  Articles
1 of 643 pages  |  10  records  |  more records»
The use of sound absorbers on many ships made from glass wool. Glass wool has a negative impact on health, which can irritate the skin and disrupt the respiratory system. Therefore, it is necessary to have an alternative sound insulation material that is ... see more

Noise exposure can occur at any time and interfere with a person's psychological and biological condition. Alternative materials from banana midrib and soybean dregs can be used as sound absorbers based on their characteristics and abundance. This researc... see more

Sub-wavelength sound absorbers are attractive for dealing with noise control at low-frequency (long-wavelength) sounds. To be efficient in absorbing the sound energy, resonator based absorbers are preferable over fibrous porous ones. In this paper, a coil... see more

In this communication, the sound absorption characteristics of rectangular-shaped plane space sound absorbers without any backing structure using permeable membranes (PMs) are measured by reverberation room method. First, three types of PMs, in this study... see more

The anechoic chamber is closely related as a device for precisely measuring various acoustic characteristics. Anechoic chambers room conditions controlled to produce a sound field-free space. This study focused on testing various commercial wedges such as... see more

This study aims to determine and evaluate the level of noise in the southern area of Universitas Negeri Padang (UNP) Kampus Air Tawar conducted at 23 points of measurement with 16 outside outdoor points and 7 indoor measurement points. Method of measureme... see more

Abstract – Sound absorption research using the press brick made of cement and sand has been done. The research was conducted to determine the effect of mixture on the absorption coefficient value of sound of the brick. In this research have made thre... see more

Utilization of waste materials with various engineering for the manufacture of products in all fields has been done by many people to get a new alternative of material. One of these materials is corn skin that has a strong nature, light, and significant t... see more

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1 of 643 pages  |  10  records  |  more records»