Essays about: "micro tubes"

Showing result 1 - 5 of 8 essays containing the words micro tubes.

  1. 1. Micro- / Meso- Scale Dielectric Strength Testing of Fibre Composites

    University essay from Umeå universitet/Institutionen för fysik

    Author : Johannes Fernberg; [2022]
    Keywords : Dielectric strength; composite; GFRP; glassfibre; composite microstructure; FEA; electric breakdown; single fibre;

    Abstract : Glass fibre composites are common materials used in high voltage applications as insulating materials that provide good structural integrity. The aim of this thesis is to develop a method of studying the failure in such materials by measuring the dielectric strength on micro- and meso- scale samples, consisting of single fibre filaments and fibre bundles respectively embedded in epoxy resin. READ MORE

  3. 2. Heat dissipation due to microvibrations in low temperature experiments

    University essay from KTH/Fysik

    Author : Julien Witwicky; [2021]
    Keywords : Spatial cryogenics; Micro-vibrations; Heat dissipation.; Rymdkryogenik; Mikrovibrationer; Värmeavledning.;

    Abstract : Ultra-sensitive photodetectors on-board space missions need very low temperatures to keep a good resolution. Cryo-coolers, such as pulse-tubes, help maintaining these conditions within a cryostat. In return however, they generate micro-vibrations. READ MORE

  4. 3. Development of Inlet Valve in an Oil­-free Novel Steam Engine

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Gautam Rajeev; Dinesh Thirunavukkarasu; [2021]
    Keywords : Steam engine; rotational valve; actuator mechanism; sealing; Ångmotor; rotationsventil; ställdon; tätning;

    Abstract : A novel compact steam engine design could be used to replace current combustion engines in the rapidly changing world of renewable energy. Especially with the increased research into alternative fuels such as hydrogen fuel cells and methane, which would vastly improve the efficiency of a steam engine. READ MORE

  5. 4. Polycapillary X-Ray Optics for Liquid-Metal-Jet X-Ray Tubes

    University essay from Uppsala universitet/Materialfysik

    Author : Malcolm Lindqvist; [2017]
    Keywords : Polycapillary optics; Polycapillary x-ray optics; X-ray optics; Liquid-metal-jet x-ray tubes;

    Abstract : Investigating and mapping fundamental processes in nature is a driving force for breakthroughs in research and technology. Doing so, requires knowledge of the smallest scales of the world. One way of performing measurements on these scales is through intense x-ray sources, which have improved greatly over the last decades. READ MORE

  6. 5. Feasibility of a low-cost weather sensor network for agricultural purposes : a preliminary assessment

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Kees Van Duijvendijk; [2015]
    Keywords : coffee; microclimates; Costa Rica; Physical Geography and Ecosystem analysis; spatio-temporal interpolation; GIS; micro-sensors; Earth and Environmental Sciences;

    Abstract : This study has focused on challenges encountered when setting up a weather-network for agricultural purposes (e.g. linking temperature to the suitability of crops and pest incidence) with only low-cost sensors and materials. READ MORE