Essays about: "Natural element"

Showing result 21 - 25 of 245 essays containing the words Natural element.

  1. 21. Explorative Scenarios for Future Lithium Supplies and Demand

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Aksel Rahman; [2023]
    Keywords : lithium mining; lithium future production; Gompertz models; Richards models; Logistic models;

    Abstract : Because of its specific qualities, lithium is a key element for making lithium-ion batteries, which is of great relevance since the battery sector is the fastest growing user of lithium to date and with the transition towards a fully electrified transportation sector due to the current climate agenda and an even bigger increase in demand for lithium is anticipated for the coming decades. The two main sources for lithium to date are mines and brines, with brine water composing around 87 % of the world’s lithium reserves in terms of contained lithium. READ MORE

  3. 22. Barns utomhusmiljöer : en studie om barns ytor i staden

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Hannah Hidén Rudander; [2023]
    Keywords : Barn; stadsplanering; lekmiljöer;

    Abstract : Det blir allt vanligare att flytta från landsbygden in till de större städerna. I takt med att fler människor väljer att flytta behöver staden utvecklas. Detta har resulterat i att vissa ytor bortprioriteras. Utrymmen som ofta drabbas är de ytor som barn behöver för att utvecklas och må bra. READ MORE

  4. 23. Distortion and attenuation free gain-assisted Superluminal Propagtion in a Rare-Earth Doped Crystal

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Antonius Johannes Renders; [2023]
    Keywords : Fast Light; Superluminal Propagation; Negative group velocity; Rare earth; Physics and Astronomy;

    Abstract : A light pulse that travels through a narrow spectral window, i.e. a frequency range of low absorption, within a strongly absorbing frequency range will be delayed due to strong dispersion. READ MORE

  5. 24. Analysis of Footbridge Comfort Vibrations

    University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Author : Niklas Thuresson; Henrik Ruuth; [2023]
    Keywords : footbridges; dynamics; vibrations; accelerations; Sétra; comfort vibrations; natural frequencies; Technology and Engineering;

    Abstract : The aim of this master's thesis was to investigate and increase the knowledge of how different parameters affect the dynamic properties of steel beam bridges used for pedestrian traffic. Steel footbridges are commonly used due to their high strength and low weight. READ MORE

  6. 25. Heat-pipes in electric machines : Heat management in electric traction motors

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : Anton Olofsson; [2022]
    Keywords : Heat-pipe; Heat pipe; FEM; LPM; Traction motors; Induction motor; Heat management;

    Abstract : The world is continually changing towards more energy efficient alternatives and less pollution. For the traction market, electric powertrains have become the go-to method, superior to both steam and diesel-electric hybrid systems. READ MORE