Advanced search

Showing result 1 - 5 of 19 swedish dissertations matching the above criteria.

  2. 1. Electromagnetic Analysis of Hydroelectric Generators

    Author : Martin Ranlöf; Urban Lundin; Georg Traxler-Samek; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Contra-rotating rotors; damping torque; damper winding; finite element method; hydroelectric generators; permeance model; pole shoe shape; rotational losses; single machine infinite bus; slot ripple; synchronizing torque; synchronous machines; voltage waveform.; Engineering physics; Teknisk fysik; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Abstract : Hydropower maintains its position as the most important source of renewable electric energy in the world. The efficiency of large hydropower plants is unsurpassed, and after more than hundred years of development, the technology is mature and highly reliable. READ MORE

  4. 2. Working children’s experiences and their right to health and well-being

    Author : Birgitta Rubenson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Working children; childhood images; narratives; child rights; adolescent health; domestic servants; shoe shiners; sex workers; Vietnam;

    Abstract : Freedom from labour and the duty to learn for the future in a separate and protected surrounding are main features characterising the modem concept of childhood, reflected in the CRC. Schools are, however, not available or not affordable for many children in the world, especially not beyond the few years of primary education. READ MORE

  5. 3. Wireless Wearable Measurement System Based on Pedobarography for Monitoring of Health

    Author : Per Anders Rickard Hellström; Mia Folke; Martin Ekström; Ning Xiong; Amy Loutfi; Mälardalens högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; elektronik; Electronics;

    Abstract : Health care costs have increased over the last decades due to an ageing population. Therefore, research in personal health monitoring (PHM) has increased in response to this. READ MORE

  6. 4. Simulation of iron ore pellets and powder flow using smoothed particle method

    Author : Gustaf Gustafsson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Abstract : Handling of iron ore pellets is an important part in the converting process for LKAB. Knowledge about this sub process is very important for further efficiency progress and increased product quality. READ MORE

  7. 5. Drum Brake Squeal

    Author : Johan Hultén; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction induced; squeak; vibration; drum brake; squeal; instability; self-excited; noise;

    Abstract : Drum brake squeal is a common discomfort. The main goal of this thesis is to investigate the mechanisms that generate drum brake squeal and to create a base for the search for solutions. A series of steps towards the understanding of these mechanisms are taken. Firstly, a simple model for friction-induced vibration is presented. READ MORE