Search for dissertations about: "DTC"

Showing result 1 - 5 of 17 swedish dissertations containing the word DTC.

2. 1. Digital Phase Locked Loops for Radio Frequency Synthesis

   Author : Ahmed Mahmoud; Integrerade elektroniksystem; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CMOS; PLL; DPLL; VCO; DCO; loop filter; DS modulator; phase noise; spurs; quantization noise; BBPD; TDC; DTC;

   Abstract : The demands for an ever higher data rate and a more varied functionality at minimal cost and power consumption have been the driving force behind most innovations in wireless communication systems. Intensive efforts have been made to develop Radio Frequency (RF) Integrated Circuits (ICs) and systems using low-cost Complementary Metal Oxide Semiconductor (CMOS) processes. READ MORE

4. 2. Synchronous Reluctance Machine (SynRM) in Variable Speed Drives (VSD) Applications

   Author : Reza Rajabi Moghaddam; Chandur Sadarangani; Alfredo Vagati; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Synchronous Reluctance Machine SynRM ; Torque; Torque Ripple; Design; Optimization; FEM; Control; Standard Size; Measurement; Performance Comparison; Induction Machine IM ; Interior Permanent Magnet Machine IPM ; Variable Speed Drive VSD ; General Purpose GP ; Field Oriented Control FOC ; Direct Torque Control DTC ; Heat Run; Test; Thermal; Operation Diagram; Circle Diagram; Electrical engineering; Elektroteknik;

   Abstract : This thesis is comprehensively dedicated to the theoretical and experimental reevaluation of the Synchronous Reluctance Machine (SynRM). A simple approach to derive the SynRM main characteristics and behavior is followed. An introduction to an evaluation of the different control strategies in is given. READ MORE

5. 3. Incidence and prognosis of differentiated thyroid cancer in Sweden

   Author : Catharina Ihre Lundgren; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Differentiated thyroid cancer; papillary; follicular; nested case-control study; population-based; risk factors; prognosis; survival; TNM.;

   Abstract : Non-medullary differentiated thyroid cancer (DTC) is a rare disorder but, nevertheless, among the most common cancers in individuals below 40 years of age. DTC consists of papillary (PTC) and follicular (FTC) thyroid cancer. The prognosis is excellent with an overall 10-year survival of 90 %. READ MORE

6. 4. Cardiovascular disease and health anxiety in patients with differentiated thyroid cancer

   Author : Maximilian Zoltek; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Background Differentiated thyroid cancer (DTC) accounts for over 90% of all thyroid malignancies, and is typically treated with a total thyroidectomy and radioactive iodine (RAI) to eliminate both macro- and microscopic cancer tissue. After these procedures, patients require levothyroxine to substitute for loss of thyroid hormones. READ MORE

7. 5. Analysis of Losses in Inverter-fed Synchronous Machines with Salient-pole Solid Rotors

   Author : Samer Badie Shisha; Chandur Sadarangani; Peter Tavner; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric power engineering; Elkraftteknik;

   Abstract : The work that is presented here considers loss analysis of inverter-fed field-excited synchronous machines. The project was initiated, as a co-operation between indus­trial partners and KTH, with the aim of providing knowledge about the losses that take place in inverter-fed large scale synchronous machines. READ MORE