Essays about: "VSI"

Showing result 1 - 5 of 15 essays containing the word VSI.

  1. 1. Optimization of concrete recipe made with crushed aggregate

    University essay from Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Author : Jonathan Lindekrantz; Pontus Axelsson; [2023]
    Keywords : ;

    Abstract : This paper investigate however concrete recipes with a specific type ofcrushed aggregate can be optimized to reduce cement content for concreteand compares it to concrete made with natural fine aggregate. The different aggregate types are sieved, and the particle size distribution curve is made for each one. READ MORE

  3. 2. Study of vector control strategy on Interior Permanent Magnet Synchronous Motors

    University essay from Högskolan Väst/Institutionen för ingenjörsvetenskap

    Author : Prabhu Bernard; [2023]
    Keywords : Direct Torque Control; IPMSM; implementation; performance;

    Abstract : This thesis presents a comprehensive study of Direct Torque Control (DTC) for Interior Permanent Magnet Synchronous Motors (IPMSMs) evaluating its potential in high performance motor drive systems. The research begins with a literature review, looking into the fundamental principles of DTC, Pulse Width Modulation (PWM), Space Vector Modulation (SVM) and Field Oriented Control (FOC). READ MORE

  4. 3. Investigating Surface Oxide Composition and Formation on Metallic Vibenite® Alloys

    University essay from Uppsala universitet/Institutionen för materialvetenskap

    Author : Emil Monie; Nils Säfström; Yiping Deng; Axel Möllerberg; [2022]
    Keywords : Vibenite; oxide; oxide growth; surface refinement; surface smoothing; alloys; additive manufacturing; controlled oxides;

    Abstract : Oxide formation on metallic surfaces is a common phenomenon which occursnaturally or intently. Depending on the metallic oxide, they can be viewed as either nuisances or conveniences depending on the effects of the oxide. READ MORE

  5. 4. Characterization of surface defects caused by ultrasonic cleaning of aluminium

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Emanuel Eriksson; [2022]
    Keywords : Ultrasonic cleaning; surface cleaning; metal; aluminium; 7050; 2050; defects; surface defects; Energy Dispersive Spectroscopy; Scanning Electron Microscopy; Vertical Scanning Interferometry;

    Abstract : This master thesis studies the behaviour of two aluminium alloys in ultrasonic cleaning at two different intensities, as well as the effect of a cleaning solution, Formula 815 GD-NF on the same surface have been studied with respect to surface roughness and material composition. Methods like Light Optical Microscopy (LOM), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and 3D topography using white light interferometry (VSI) was used to study the surface and material composition. READ MORE

  6. 5. DETECTION AND RESOLUTION OF VSI-DDOS ATTACKS FOR CONTAINERIZED CLOUDS

    University essay from Umeå universitet/Institutionen för datavetenskap

    Author : Kristoffer Landfors; [2019]
    Keywords : ;

    Abstract : Very Short Intermi‹ent Distributed Denial of Service (VSI-DDoS) a‹ttack is a new form of DDoS a‹ttacks with potential to bypass many of the security measures used today and still severely damage the quality of service of web applications in cloud systems. Th‘e att‹acks consists of short bursts of legitimate packets which exploits vulnerabilities in the targeted system. READ MORE