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Exploration and Exploitation of Acoustic Shielding Materials for Environmental Protection Programs

This academic project delves into the effective utilization of shielding materials to combat air and water pollution, as well as excessive acoustic pressure. The study covers the types of shielding materials, their functions in absorbing and diffusing noise, and how they contribute to creating a healthier environment. It also emphasizes the importance of ear protection and the consequences of exposure to high noise levels on human health and performance. The project includes a detailed analysis of sound frequencies, measures to reduce noise levels, and sets forth the significance of environmental protection measures.

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Exploration and Exploitation of Acoustic Shielding Materials for Environmental Protection Programs

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  1. 28. 07. 2011 Lukáš Černý Exploration and exploitation of acoustic shielding materials Supervisor Prof. Dr. Ali H. Reshak

  2. Environmentalprotection program ofdeveloptedcountries: 1. Airpollution 2. Waterpollution 3. Acusticpressure Highnoiseforlongtimecancouse: 1. Specificdisturbancs • Deafness 2. Non-specificdisturbancs • Psychicalproblems • Low Performance Environmentandhealth

  3. Ear translates frequency into nerve impulses Low frequency under 16 - 20Hz infrasound High frequency over 20 KHz ultrasound Whatwecanhear

  4. Shieldingmaterials

  5. Shieldingmaterials - types Absorbing Diffusing Bass trap

  6. Reduce noise • Changing filtres • Individually use • Excellent sound EarProtection

  7. Measurevalue

  8. Background 34 dB • Noise level 45,5 dB • Day limit 50dB 6am – 10 pm • Night limit 40dB 10pm – 6am • Reduce noise 5,5dB till 125Hz results

  9. Thanks to: Supervisor prof. Dr. Ali H. Reshak My colleagues for support Summer school for opportunity Sponsor acknoledgments

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