Sökning: "Ultra"

Visar resultat 1 - 5 av 406 uppsatser innehållade ordet Ultra.

  1. 1. Method development for the analysis of PFAS and neutral precursors in active and passive air samplers

    Master-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Pascal Camoiras González; [2019]
    Nyckelord :;

    Sammanfattning : Poly- and perfluoroalkyl substances (PFAS) are a chemical class of global concern because of their persistence, toxicity and widespread presence in the environment. This work aimed to develop a robust and reliable method to analyse perfluorohexane sulfonic acid (PFHxS), perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS), as well as the neutral volatile PFOS precursors, namely perfluorooctane sulfonamides and perfluorooctane sulfonamidoethanols (FOSAs/FOSEs). LÄS MER

  2. 2. Pressurizing of high-pressure fuel system forsingle cylinder test cell

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Gustaf Glaad; [2019]
    Nyckelord :Alternative fuels; Ultra high-pressure fuel system; Common rail direct injection fuel system; Diesel-like fuels; Compression ignited fuels;

    Sammanfattning : This master thesis covers the development of a high-pressure fuel system for compression ignitedfuels such as diesel and diesel-like fuels that will be deployed into a single cylinder test cell at AVLMTC Södertälje, Sweden. The test cell is used by AVL to conduct research and testing of new fuelsfor their customers and this new fuel system will widen the span of fuels able to be tested by theequipment. LÄS MER

  3. 3. Alternativ för Sverige (AfS) : En idéanalys om likheterna mellan fascismen och AfS sakpolitik

    Kandidat-uppsats, Karlstads universitet

    Författare :Rejab Karemi; [2019]
    Nyckelord :AfS; Alternativ för Sverige; fascism; Sverigedemokraterna; nationalism;

    Sammanfattning : Right-wing nationalist parties are growing throughout the world. The French Front National, Hungarian Jobbik, Austrian FPÖ, Danish Folkeparti (People Party), Swedish Sverigedemokraterna (Sweden Democrats), and other nationalist parties set their stake in the ground and claim a new political agenda that is either populist or extreme and Fascist. LÄS MER

  4. 4. Wireless electrocardiogram based on ultra-wideband communications

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och System

    Författare :Maria Toll; [2019]
    Nyckelord :UWB; ECG; EKG; ultra-wideband; electrocardiogram; ultra wideband; radio communication; Decawave; DW1000; IoT; internet of things; Android; IEEE 802.15.4-2011;

    Sammanfattning : The goal for this master thesis is to develop a prototype that uses ultra-wideband (UWB) communications to wirelessly transfer electrocardiogram (ECG) data from an ECG measurement unit to an Android device (smartphone or similar) which is used to process and display the ECG signals. The prototype should consist of two hardware nodes; (1) Node one having a ECG measurement unit (an AD8232 single lead heart rate monitor), an UWB communication module (a Decawave DWM1000 module) and a microcontroller (an Arduino DUE); and (2) Node two having an Android device (an Android smartphone), an UWB communication module (a Decawave DWM1000 module) and a microcontroller (an Arduino DUE). LÄS MER

  5. 5. Implementation and characterization of Silicon detectors for studies on neutron-induced nuclear reactions

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad kärnfysik

    Författare :Leo Lehtilä; [2019]
    Nyckelord :Silicon detector; Silicon telescope; Ultra-thin silicon detector; Energy resolution; Radioactive source; Am-241; Cf-252; Fission Fragments; Alpha Particles;

    Sammanfattning : Energy resolution characteristics of silicon surface barrier detector signals amplified by different preamplifiers and spectroscopic amplifiers have been studied. The characterization has been done using alpha particles from an 241Am source and spontaneous fission fragments from two Cf sources. LÄS MER