Essays about: "sound transmission loss"
Showing result 1 - 5 of 14 essays containing the words sound transmission loss.
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1. Acoustic Characterization of Catalyst
University essay from KTH/Skolan för teknikvetenskap (SCI)Abstract : The WHO has set a sound level threshold of 55 dB, beyond which noise is considered harmful to humans when exposed for an extended period of time. It is, however, estimated by the European Environmental Agency that over 110 million people in the EU are regularly exposed to levels of traffic noise above 55 dB. READ MORE
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2. Incorporating Flax Fiber Composites in Hypercar Panels
University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanikAbstract : This thesis investigates sound transmission loss through flat finite panels using composite materials, which incorporate both carbon and flax fibres. The study wascarried out by performing FEM simulations developed and validated in steps. Thevalidation process was time-consuming but crucial in ensuring the model’s reliability. READ MORE
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3. Utilization of Rubber and Plastic Waste as A Partial Replacement of Aggregate for Improved Sound Insulation
University essay from Luleå tekniska universitet/Arkitektur och vattenAbstract : Globally, billions of tons of rubber and plastic waste are produced annually, and because these wastes degrade so slowly (about 450 years for plastic bottles and 80 years for tire rubbers), they are extremely difficult to dispose of. As a result, utilizing these wastes directly in building materials can significantly reduce the environmental load while also increasing the sustainability of the building material. READ MORE
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4. Enhancing the Decoding of Short LDPC Codes with Stochastic Sequences
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : Low-Density Parity-Check (LDPC) codes are one of the most popular codes used in nowadays’ communication due to their high coding efficiency at low decoding complexity. With these characteristics, LDPC codes are suitable for high-speed information transmission systems. READ MORE
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5. A simplified model for the design of floor structures with vibrating sources for architectural applications
University essay from KTH/MWL Marcus Wallenberg LaboratorietAbstract : When designing a building, sound is one of the problems to take into account. Vibrating machines, such as ventilation fans, water pumps and compressors, generate structure-borne sound. The structure-borne sound travels up the structure of the building and generates sound in adjacent rooms. READ MORE