Essays about: "noise pollution"

Showing result 6 - 10 of 84 essays containing the words noise pollution.

  1. 6. Development of a Low Noise Drone Propeller Using CFD Simulations

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Axel Schulz; [2023]
    Keywords : Drone Propeller Low Noise Computational Fluid Dynamics CFD; Technology and Engineering;

    Abstract : Noise pollution generated by drones has in recent years become a concern for humans and wildlife and has in some regions resulted in regulatory backlash. This thesis investigates the possibilities of developing a low noise drone propeller using computational fluid dynamics (CFD) simulations. READ MORE

  3. 7. Changes in cetacean presence and behavior in response to reduced marine traffic - the effects of a nationwide lockdown

    University essay from Högskolan i Halmstad

    Author : Lisa Falk Lindberg; Lindqvist Erika; [2022]
    Keywords : ;

    Abstract : Creating noise-pollution and other disturbances, marine traffic poses a great threat to marine mammals all over the world which may demonstrate through short- and long-term changes in behavior and distribution. The Covid-19 lockdown in 2020 provided a setting to study the effects of marine traffic on cetacean presence and interactive behavior. READ MORE

  4. 8. Stadsträdens reglerande roll i stadsrummet : trädens hälsoförbättrande potential för invånarna genom reglerande ekosystemtjänster i Malmö innerstad

    University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Author : Clara Studeny; Johanna Lindholm; [2022]
    Keywords : stadsträd; reglerande ekosystemtjänster; hälsa; stadsmiljö; Malmö;

    Abstract : I detta arbete sammanfattas och fördjupas frågan om stadsträd kan, genom deras reglerande ekosystemtjänster, bidra med att förbättra hälsan hos invånarna i Malmös innerstad. Vidare diskuteras i vilken utsträckning endast stadsträd kan förse invånarna med tillräckligt stor effekt av de reglerande ekosystemtjänsterna. READ MORE

  5. 9. Hydroacoustic Modelling of Podded Propulsion System : Underwater Radiated Noise Prediction Using ANSYS

    University essay from KTH/Teknisk mekanik

    Author : Martin Persson; [2022]
    Keywords : Fluid Mechanics; Computational Aeroacoustics; Frequency Response; Noise and Vibration; Pod; Propulsion System; ANSYS; Reynolds-Averaged Navier-Stokes Equations; Kongsberg Maritime Sweden AB;

    Abstract : Ocean noise pollution is an invisible but growing threat. There are many sources of sound in the ocean but human underwater radiated noise, in particular from shipping is one of the most prominent one. Ocean noise pollution can interfere or sometimes even directly harm marine life. READ MORE

  6. 10. Come Fly with Me (Sustainably) : Pathways to Sustainable General Aviation and Private Pilot Training

    University essay from Högskolan i Gävle/Miljövetenskap

    Author : Michael Stiebe; [2022]
    Keywords : General Aviation; Sustainable Aviation; Sustainable Development; Electric Aviation; Noise Pollution; Leaded Fuel; AVGAS 100LL; Tetraethyl Lead Phaseout; Pilot Training; Recreational Aviation; Switzerland;

    Abstract : Whereas commercial aviation is attempting to achieve the reduction of its substantial carbon footprint, general aviation’s (GA) climate change contribution is negligibly small, which is why the sector is facing other sustainability challenges mainly entailing the operation of dated technology and aircraft, increasing regulatory constraints, rising costs, noise emissions, and popular discontent, as well as remaining the last mobility sector in the world to still use leaded fuels. Throughout recent years, there have been remarkable sustainability trends in GA as well as heightened efforts to improve its emissions profile (noise, pollutants, CO2) and environmental reputation, for instance by the increased use of electric aircraft, especially for private pilot training. READ MORE