Essays about: "simple pollution"

Showing result 6 - 10 of 36 essays containing the words simple pollution.

  1. 6. Development of a GC Method for the Quantification of Short Chain Carboxylic Acids in Aqueous Solution

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Anton Åkervall; [2020]
    Keywords : DAI-GC-FID; Direct Aqueous Injection; Gas Chromatography; Flame Ionization Detector; SCFA; Short Chain Fatty Acids; Formic Acid; Acetic Acid; Lactic Acid; EGR; Exhaust Gas Recirculation; CAC; Charged Air Cooler; FFD; Fractional Factorial Design;

    Abstract : Petroleum powered vehicles emit volatile organic compounds (VOCs) through combustion that contributes to the pollution of the environment. A technique in the 1970s was developed to decrease these emissions, especially for nitrogen oxides (NOx) and sulphuric oxides (SOx) which is called exhaust gas recirculation (EGR). READ MORE

  3. 7. Passivation of Gallium Arsenide Nanowires for Solar Cells

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Austin Irish; [2019]
    Keywords : nanowires; semiconductors; solar cells; photovoltaics; passivation; electronics; chemistry; polymers; hydrazine; plasma; gallium; arsenic; iii-v; epitaxy; photoluminescence; time-resolved; spectroscopy; Physics and Astronomy;

    Abstract : A strategic and diverse set of passivation methods for gallium arsenide nanowires wasstudied. Using a time-resolved photoluminescence setup at100 Kand300 K, the radiativerecombination of charge carriers was resolved on a picosecond time scale. READ MORE

  4. 8. Optimization based trajectory planning for autonomous racing

    University essay from KTH/Fordonsdynamik

    Author : Max Ahlberg; [2019]
    Keywords : ;

    Abstract : Autonomous driving is one of the three new technologies that are disrupting the classical vehicle industry together with electrification and connectivity. All three are pieces in the puzzle to drastically reduce the number of fatalities and injuries from traffic accidents but also to reduce the total amount of cars, reduce the polluting greenhouse gases, reduce noise pollution and completely eliminate unwanted driving. READ MORE

  5. 9. Direct pellet extruder developed for LEDC - 3D print with recycled materials

    University essay from Lunds universitet/Innovation

    Author : Paolo von Krogh; [2018]
    Keywords : LEDC; 3D-printing; recycling; sustainability; Technology and Engineering;

    Abstract : The thesis is to develop a 3D printer that easily and conveniently can print with recycled plastic such as PET bottles, plastic packaging and much more. The printer will be designed according to the needs of a developing country. READ MORE

  6. 10. Regional Regression Models of Mean Annual Streamflow and Design Flow in a Tropical Region of Colombia.

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Anisa Zigaf Elfellah; Amanda Eriksson; [2018]
    Keywords : mean annual streamflow; extreme flow; design flow; regional regression model; ungauged watershed; hydrological homogeneous region; Gumbel distribution; Technology and Engineering;

    Abstract : A responsible and sustainable water resources management is important. It is also crucial to take the presence of watercourses into account during design of hydraulic structures such as small dams and bridges. Doing this requires knowledge of estimates of annual streamflow and extreme flows to be used for design purposes. READ MORE