Search for dissertations about: "Mittuniversitetet."

Showing result 21 - 25 of 624 swedish dissertations containing the word Mittuniversitetet..

  2. 21. Design and optimization of soft switched power converters for low and medium power applications

    Author : Muhammad Abu Bakar; Kent Bertilsson; Johan Sidén; Mittuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

  4. 22. Wide Range Isolated Power Converters

    Author : Muhammad Abu Bakar; Kent Bertilsson; Johan Sidén; Jorge Garcia; Mittuniversitetet; []
    Keywords : Power converters; Resonant converters; wide range converter; stable performance;

    Abstract : Power electronics technology is rapidly growing in most industrialapplications. There is an increasing demand for efficient and low profilepower converters in the industry like automotive, power grids, renewableenergy systems, electric rail systems, home appliances, and informationtechnology. READ MORE

  5. 23. Power Scaling of Highly Compact Single-Frequency Yb-Doped Fiber Amplifiers

    Author : Enkeleda Balliu; Hans-Erik Nilsson; Magnus Engholm; Pavel Peterka; Mittuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; single-frequency; fiber amplifier; Yb-doped fibers; stimulated Brillouin scattering; compact lasers; thermal load; SHG; MOPA;

    Abstract : Both scientific interests and industrial applications have stimulated the advance of single-frequency laser technology. The high spatial and temporal coherence of this technology has facilitated many applications such as gravitational wave detection, high-precision fiber sensors, high-resolution spectroscopy, holography, and nonlinear optical conversion. READ MORE

  6. 24. Investigation of Surface Formation in As-Cast and Homogenized 6xxx Aluminium Billets

    Author : Nazlin Bayat; Torbjörn Carlberg; Håkan Olin; Yanjun Li; Mittuniversitetet; []
    Keywords : DC casting; surface segregation; surface defects; intermetallic phase; phase transformation; homogenization;

    Abstract : The direct chill (DC) casting technique to produce billets for extrusion and ingots for rollingwas developed in the 1930s. The principle, which is still valid, is a two-stage cooling with a primary cooling at a mould surface followed by water spraying directly on the surface. READ MORE

  7. 25. Social Determinants of Suicidal Ideation among Adolescents in Rural Bangladesh

    Author : Afroza Begum; Gloria Macassa; Joaquim Soares; AKM Fazlur Rahman; Eija Viitasara; Hamid Reza Khankeh; Kastytis Šmigelskas; Mittuniversitetet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Prevalence; Factors; Socio-economic; Parents; Suicidal ideation; Rural; Adolescents;

    Abstract : Background and Objective: Suicide is a leading cause of death and a critical public health problem among adolescents worldwide. However, adolescent suicidal behaviour is a neglected public health issue, especially in low- and middle-income countries, such as Bangladesh. READ MORE