Essays about: "sektionen"

Showing result 1 - 5 of 3047 essays containing the word sektionen.

  1. 1. Modularization of High Voltage Section

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Johan Rósen; Roine Penttilä; [2023]
    Keywords : Modularization; High voltage; Traction; Frame configuration; Rail vehicle; Modularisering; högspänning; drivsystem; ramkonfiguration; tågfordon;

    Abstract : Today, Alstom has several types of High-Voltage sections (HV), which are adapted for every new type of train. Some are very similar in size and components and others are more different. READ MORE

  3. 2. Phonons in 1-D Graphene Nanoribbons Probed with Raman Spectroscopy : Unraveling Fundamental Properties in 9-atom-wide Graphene Nanoribbons

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Angel Victor Labordet Alvarez; [2023]
    Keywords : 9-armchair graphene nanoribbons 9-AGNRs ; polarization Raman Spectroscopy PRS ; temperature-dependent Raman spectroscopy; thermal sensitivity; thermal stability; Grüneisen parameter χ ; anharmonicities; vibrational modes G; D; RBLM .; 9-armchair grafen nanoribbons 9-AGNRs ; polarisation Raman spektroskopi PRS ; temperaturberoende Raman spektroskopi; termisk känslighet; termisk stabilitet; Grüneisen parameter χ ; anharmoniciteter; vibrationslägen G; D; RBLM .;

    Abstract : This report employs advanced Raman spectroscopy techniques to investigate the fundamental properties of 9-AGNRs comprehensively. It is divided into two main sections addressing distinct aspects of 9-AGNR behavior. In the first section, Polarization Raman spectroscopy (PRS) probes phonon mode symmetries in 9-AGNRs. READ MORE

  4. 3. Evaluation of Energy Losses in a Wind Farm

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Gabriel Claesson; [2021]
    Keywords : ;

    Abstract : In recent years, the power production from wind power and other renewable energy sources has increased significantly. Arguably, this is due to the greenhouse effect and the economic benefit of generating power from the wind. Wind power has the potential to replace other non-renewable power sources. READ MORE

  5. 4. Optimization of a cutter wheel bearing

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : William Fagrell; [2020]
    Keywords : Mechanical rock excavation; cutter wheel; cutter disc; reaction force; contact pressure; scuffing; wear; Mekanisk bergavverkning; cutterhjul; cutter disc; reaktionskraft; kontakttryck; scuffing; nötning;

    Abstract : This Master's thesis project was provided by Epiroc Rock Drills AB and conducted at Camatec Industriteknik AB in Karlstad, Sweden. The project is centered around the cutter wheel in the mechanical rock excavator Mobile Miner 40V. READ MORE

  6. 5. Hydrogeological Prognoses in Infrastructure Projects : A Case Study of Stockholm Bypass, Hjulsta Norra

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Frida Grenholm; [2020]
    Keywords : Infrastructure; hydrogeology; groundwater; prognoses;

    Abstract : As cities expand, urban planning and efficient land use becomes more important and presents new challenges. A city that is exposed to these challenges is Stockholm, Sweden (Stockholms stad, 2018). READ MORE