Search for dissertations about: "pfc"

Showing result 1 - 5 of 33 swedish dissertations containing the word pfc.

  1. 1. Single Phase Active Power Factor Correction Converters - Methods for Optimizing EMI, Performance and Costs

    Author : Supratim Basu; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Antenna Factor; Diode Recovery Time; Harmonic currents; EMI; Quasi Park; Snap Factor; PFC;

    Abstract : In this thesis, front-end solutions with single-phase power factor correction (PFC) capability are studied. The reduction of current harmonics using various PFC techniques is investigated and related to the EN 61000-3-2 standard. READ MORE

  2. 2. Material migration in tokamaks: Studies of deposition processes and characterisation of dust particles

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Armin Weckmann; KTH.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; tokamak; fusion; plasma; material migration; particle transport; TEXTOR; PWI; plasma-wall interaction; plasma facing components; PFC; PFM; plasma facing materials; ALT limiter; MoF6; tracer experiment; molybdenum hexafluoride; future energy source; fuel retention; deuterium retention;

    Abstract : Thermonuclear fusion may become an attractive future power source. The most promising of all fusion machine concepts is the tokamak. Despite decades of active research, still huge tasks remain before a fusion power plant can go online. One of these important tasks deals with the interaction between the fusion plasma and the reactor wall. READ MORE

  3. 3. Striving to be able and included Expressions of sense of self in people with Alzheimer's disease

    University dissertation from Stockholm : Karolinska Institutet, Department of Neurobiology, Care Sciences and Society

    Author : Ragnhild Hedman; Ersta Sköndal högskola.; Ersta Sköndal högskola.; Karolinska Institutet.; Karolinska Institutet.; [2014]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Agency; Alzheimer s disease; Communion; Early onset; Harré s social constructionist theory; Positioning; Research participation; Self; Support group; agency;

    Abstract : According to research applying a social constructionist perspective, the sense of self is not lost in people with Alzheimer’s disease (AD). It is, however, greatly influenced by the symptoms and by how they are treated by other people. READ MORE

  4. 4. A support group programme for family members an intervention during ongoing palliative care

    University dissertation from Örebro universitet

    Author : Anette Henriksson (Alvariza); Anette Henriksson; Ersta Sköndal högskola.; Örebro universitet.; [2012]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Competence; Family members; Interventions; Palliative care; Preparedness; Rewards; Support groups; Vårdvetenskap; Nursing Science;

    Abstract : Family members are central in providing care for patients with lifethreatening illness, but they often experience a lack of necessary preparation and knowledge, with a need for information and psychosocial support. The overall aim of this thesis was to investigate participant’s experiences as well as effects of a support group programme for family members of patients with life-threatening illness during ongoing palliative care. READ MORE

  5. 5. Aggregation of Plug-in Electric Vehicles in Power Systems for Primary Frequency Control

    University dissertation from Stockholm, Sweden : Delft University of Technology, Camillas Pontifical University, KTH Royal Institute

    Author : Seyedmahdi Izadkhast; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aggregation; Plug-in Electric Vehicles; Primary Frequency Control; Aggregeren; Plug-in Elektrische Voertuigen; Primaire Reserve; Laddbara Bilar; Elnätet; Primär Frekvensreglering; Agregación; Vehículos Eléctricos Enchufables PEVs ; Control Primario de Frecuencia PFC ; Electrical Engineering; Elektro- och systemteknik;

    Abstract : The number of plug-in electric vehicles (PEVs) is likely to increase in the near future and these vehicles will probably be connected to the electric grid most of the day time. PEVs are interesting options to provide a wide variety of services such as primary frequency control (PFC), because they are able to quickly control their active power using electronic power converters. READ MORE