Search for dissertations about: "t test"

Showing result 1 - 5 of 486 swedish dissertations containing the words t test.

2. 1. Search for Gamma-ray Lines from Dark Matter with the Fermi Large Area Telescope

   Author : Tomi Ylinen; Mark Pearce; Jan Conrad; Staffan Carius; James T. Linnemann; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Fermi; Large Area Telescope; gamma-rays; dark matter; spectral lines; beam test; Physics; Fysik; Astroparticle physics; Astropartikelfysik;

   Abstract : Dark matter (DM) constitutes one of the most intriguing but so far unresolved issues in physics. In many extensions of the Standard Model of particle physics, the existence of a stable Weakly Interacting Massive Particle (WIMP) is predicted. The WIMP is an excellent DM particle candidate. READ MORE

4. 2. Experimental characterization and numerical modeling of compression perpendicular to the grain in wood and cross-laminated timber

   Author : Shaheda T. Akter; Thomas K. Bader; Erik Serrano; Jan Oscarsson; Reinhard Brandner; Linnéuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rolling shear; biaxial testing; stress combination; RT-plane; moisture influence; rolling shear creep; digital image correlation; strain field; CLT connection; rotational stiffness; rullskjuvning; biaxiell undersökning; spänningskombination; RT-plan; fuktpåverkan; krypning vid rullskjuving; digital bildkorrelation; töjningsfält; KLTanslutning; rotationsstyvhet; Byggteknik; Civil engineering;

   Abstract : Compression perpendicular to the grain (CPG) of wood is a typical loading situation in timber structures. It has been an extensively studied research topic for decades, due to the highly ductile behavior of wood under such loading, the large variations in mechanical properties, and the relevance of these properties in structural design. READ MORE

5. 3. Severe maternal morbidity in Angola : studies on postpartum haemorrhage, jaundice and clinic-based audit

   Author : Roland T Strand; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Active management of third stage of labour; Angola; audit; jaundice; malaria; hepatitis E; postpartum haemorrhage; uterine rupture; waiting time;

   Abstract : Background: Angola has recently ended a long period of warfare, which has resulted in an almost complete collapse of public health. In Luanda, the capital, some 70,000 deliveries take place in public facilities. Maternal morbidity and mortality is among the highest in the world. Postpartum haemorrhage is the dominant cause of death. READ MORE

6. 4. Radiographers’ Professional Competence : Development of a context-specific instrument

   Author : Bodil T. Andersson; Bengt Fridlund; Anders Broström; Lennart Christensson; Kerstin Öhrling; Jönköping University; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Professional competence; Radiographer perspective; Patient perspective; Nursing; Radiography; Instrument development; Self-assessment; Psychometric evaluation; RCS;

   Abstract : Aims: The overall aim of this thesis was to explore and describe radiographers‟ professional competence based on patients‟ and radiographers‟ experiences and to develop a context-specific instrument to assess the level and frequency of use of radiographers‟ professional competence.Methods: The design was inductive and deductive. READ MORE

7. 5. Simulation methods for hydropower flows : modeling and validation experiments

   Author : T. Fredrik Engström; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

   Abstract : My research project aims for more accurate modeling of the flow in hydropower plants. By accurate modeling, it is possible to try different modifications on existing plants in an affordable manner. Also, entirely new designs can be tested before realization. Hydropower delivers almost 50% of Sweden's electricity demand with a production of 74 TWh. READ MORE