Sökning: "Shunting"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet Shunting.

  1. 1. The functional anatomy of the crocodilian heart

    Kandidat-uppsats, Linköpings universitet/Biologi

    Författare :Jennifer Karlsson; [2023]
    Nyckelord :Anatomy; Cardiac right-to-left shunt; Cog-teeth-like valves; Crocodilian heart; Foramen of Panizza; Hemodynamics; Left aorta;

    Sammanfattning : Crocodiles are ectothermic, intermittent breathing reptiles with low metabolic rates. Additionally, they are diving animals that can stay submerged for long periods, which poses special demands on their cardiovascular system. The crocodilian heart is four-chambered with completely separated ventricles, making it unique among other reptiles. LÄS MER

  3. 2. Morphological characterization of the muscular ridge in non-crocodilian reptiles

    Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Wilma Sohlén; [2023]
    Nyckelord :Adaptation; Anatomy; Function; Haemodynamics; Muscular ridge; Reptiles; Shunting;

    Sammanfattning : The cardiovascular systems in ectothermic reptiles have long been studied and its development represent a transition state between a single- and a double circulation. This literature review focus on the typical-reptilian heart and therefore distinguishes between orders within the class of Reptilia. LÄS MER

  4. 3. Artificial Intelligence applications for railway signalling

    Master-uppsats, KTH/Transportplanering

    Författare :Benjamin Smakic; [2021]
    Nyckelord :Artificial Intelligence; AI; Machine Learning; ML; Computer Vision; railway signalling; ERTMS level 3; GPS; autonomous train operations; Artificiell Intelligens; Maskininlärning; datorseende; signalteknik; autonoma tåg; självkörande tåg.;

    Sammanfattning : The main purpose of this Master Thesis is to investigate how front-facing, train-mounted cameras and Computer Vision, a type of Artificial Intelligence (AI), can be used to compensate for GPS inaccuracies. By using footage from track-recording cameras, Computer Vision can be utilized to determine the number of tracks and the track occupancy of the train, which would compensate GPS inaccuracies in the lateral positioning. LÄS MER

  5. 4. Pre-study of optical LED units for shunting signals

    M1-uppsats, KTH/Hälsoinformatik och logistik

    Författare :Tobias Adolfsson; Axel Dellenby; [2021]
    Nyckelord :LED - Light Emitting Diode; Booster Converter; MLCC - Multi-layer capacitor; ESR - Equivalent Serie Resistance; OU - Optical Unit; Reactive compensation; LED - lysdiod; step-up omvandlare; MLCC - flerskiktskeramisk kondensator; ESR - ekvivalent serie motstånd; OU - optiskt enhet; reaktiv kompensering;

    Sammanfattning : Alstom wanted to investigate the possibility of adapting its light emitting diode (LED) technology for shunting signals in train traffic. The LED technology uses 50V, but Alstom wants to adapt it for 12V. The LED technology is energy efficient but needs to be adapted for existing signal interlocking by drawing a higher current. LÄS MER

  7. 5. Evaluation of Shunt Distance in Resistance Spot Welding

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Daniel Fredriksson; Milou Carlfors Göransson; [2020]
    Nyckelord :Resistance spot welding; RSW; Shunt effect; Shunting; Shunt distance; One-dimension welding lobe; Punktsvetsning; RSW; Shunt effekt; Shuntning; Shuntavstånd; Endimensionell svetslob;

    Sammanfattning : The purpose of this study was to generate a greater understanding of how the shunt distance affects the shunting phenomena which occurs when working with resistance spot welding (RSW). Shunting affects the quality of the weld and the goal of the study was to create guidelines for RSW to minimize its impact on the weld quality. LÄS MER