Sökning: "ultra-sound"

Visar resultat 1 - 5 av 13 uppsatser innehållade ordet ultra-sound.

  1. 1. Microstructures and Compressive Strength of Lake Ice in Sweden A structural Documentation and Compressive Strength Analysis of Lake Ice Cores from Uppsala, using the SonReb Method

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Julia Ladefoged; [2023-08-18]
    Nyckelord :;

    Sammanfattning : Lake ice have been utilized by humans through centuries, as transportation routes and recreational activities to name a few (Sharma et al., 2019). Despite our frequent usage of lake ice there is a lack of extensive knowledge of it. LÄS MER

  3. 2. Mät och reglerproblem liners

    Uppsats för yrkesexamina på grundnivå, Mittuniversitetet/Institutionen för elektronikkonstruktion

    Författare :Björn Svensson; [2021]
    Nyckelord :Automation; industrial; process; Inpipe; liners; measurement; ultra-sound; laser; optical; sensor; regulation; feed forward.; Automation; avståndsgivare; ultraljud; optik; laser; sensor; liner; In-pipe; mätproblem; reglering; framkoppling;

    Sammanfattning : Inpipes produktion av liners sker idag till stor del manuellt. I syfte att minska variansen på produktkvalitet, råvaror och öka processens hastighet undersöktes möjligheterna att elektroniskt mäta utbuktningarna som uppstod i processen. Därefter undersöktes processens egenskaper inför att använda mätvärdena i en passande reglerstruktur. LÄS MER

  4. 3. Image analysis tool for geometric variations of the jugular veins in ultrasonic sequences : Development and evaluation

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för visuell information och interaktion

    Författare :Arvid Westlund; [2018]
    Nyckelord :active contour; ultra sound; ultrasonic; image analysis; internal jugular veins; snake;

    Sammanfattning : The aim of this project is to develop and perform a first evaluation of a software, based on the active contour, which automatically computes the cross-section area of the internal jugular veins through a sequence of 90 ultrasound images. The software is intended to be useful in future research in the field of intra cranial pressure and its associated diseases. LÄS MER

  5. 4. Preparation and characterization of nanocellulose from wheat bran

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Claes Nilsson; [2017]
    Nyckelord :Spherical nanocellulose; Nanocellulose; Wheat bran; Cellulose; Renewable; chemical engineering; kemiteknik; Technology and Engineering;

    Sammanfattning : Nanocellulose is being studied to a great extent around the world as it has great potential and many possible applications, for example, as an additive in greener polymers in a world where the need for replacements for fossil fuel based polymers increase. Different sources of cellulose are being considered for the production of nanocellulose as this can add value to what otherwise often is a by-product. LÄS MER

  7. 5. Närvarodetektering i pool

    Kandidat-uppsats, Lunds universitet/Högskoleingenjörsutbildning i datateknik

    Författare :Filip Ohlsson; Rasmus Ågren; [2016]
    Nyckelord :larmsystem; piezotransducer; st32f411re; mbed; adc; signalbehandling alarm system; ultra sound; stm32f411re; signal processing; Technology and Engineering;

    Sammanfattning : This Bechelor thesis is written on behalf of Verisure Innovation AB in Mamö, Sweden. The authors were studying Bachelors of Sience in Electrical Engineering with focus on automation at Lunds Tekniska Högskola, Campus Helsingborg. The main goal of the thesis was to develop a prototype of an alarmsystem for domestic swimming pools. LÄS MER