Sökning: "recovery rates"

Visar resultat 21 - 25 av 88 uppsatser innehållade orden recovery rates.

  1. 21. Anaerobic Co-digestion of steam pretreated wheat straw and sewage sludge

    Master-uppsats, Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

    Författare :Virginia Tosi; [2021]
    Nyckelord :Anaerobic co-digestion; wheat straw pretreatment; nutrients availability; OLR; VFA acumulation; Biotechnology; Technology and Engineering;

    Sammanfattning : Anaerobic digestion (AD) of wastes and residues is a widely applied and explored process. However, when the process is not optimized, inadequate concentrations of nutrients and inhibitory compounds are common and can lead to low maximum organic loading rates and increased risk of process problems, low organic dry solids degradation rate and reduced methane yields. LÄS MER

  3. 22. Risk Assessment for Projects of Energy Recovery from Solid Waste : Proposal of a Base Model for Risk Management

    Master-uppsats, Uppsala universitet/Industriell teknik

    Författare :Erik Javier Guerron Avila; [2021]
    Nyckelord :;

    Sammanfattning : Risk management has been applied within projects in different industries and companies in the past years. However, the knowledge that was generated by literature is about industries such as construction or IT. LÄS MER

  4. 23. Aspects of erosion of restored trout spawning beds in two streams in Northern Sweden

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Frida Michelle Granlund; [2021]
    Nyckelord :in-stream restoration; reproductive habitat; salmonids; passive integrated transponders tags PIT-tags ;

    Sammanfattning : Many rivers and streams in northern Sweden have been channelized due to timber floating. This has severely degraded the spawning habitats for salmon and trout, and therefore a common action when restoring channelized rivers is to establish new spawning beds by adding gravel to the streambed. LÄS MER

  5. 24. Gate oxide characterization of 4H-SiC MOS capacitors : A study of the effects of electrical stress on the flat-band voltage of n-type substrate 4H-SiC MOS capacitors

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Sotirios Maslougkas; [2021]
    Nyckelord :Silicon carbide; Gate oxide; Oxide characterization; MOS devices; Semiconductor- insulator interface; Kiselkarbid; Gate-oxid; Oxidkarakterisering; MOS-teknologi; halvledar-isolatorgränssnitt;

    Sammanfattning : Silicon is the main material used in electronics. The evolution of power electronics and the need for more power efficient semiconductor devices led silicon to its limits. Silicon carbide is a promising material for electronic applications with a wide band-gap, high critical electric field, high thermal conductivity and saturation velocity. LÄS MER

  7. 25. Network analysis of delay propagation on Swedish railways

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Jacob Landelius; Elsa Wallgren; [2021]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Travel on railway in Sweden has increased steadily over the past three decades and there are today twice as many passengers travelling by train as there were 30 years ago. The increasing awareness of environmental issues with other methods of transportation is likely to favour railway travel, and so the number of passengers is expected to continue to rise. LÄS MER