Search for dissertations about: "dead time losses"

Showing result 1 - 5 of 6 swedish dissertations containing the words dead time losses.

2. 1. Efficient Energy Harvesting Interface for Implantable Biosensors

   Author : Janko Katic; Ana Rusu; Saul Rodriguez; Jonny Johansson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Implantable biosensors; thermoelectric energy harvesting; energy harvesting interface; power management; DC-DC converters; dead time losses; Electrical Engineering; Elektro- och systemteknik;

   Abstract : Energy harvesting is identified as a promising alternative solution for powering implantable biosensors. It can completely replace the batteries, which are introducing many limitations, and it enables the development of self-powered implantable biosensors. READ MORE

4. 2. Neutron Multiplicity Counting with the Analysis of Continuous Detector Signals

   Author : Lajos Nagy; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Kolmogorov equation; fissile material assay; nuclear safeguards; fission chamber; neutron multiplicity counting; master equation;

   Abstract : Neutron multiplicity counting is a non-destructive assay method for determining the mass of fissile materials (primarily plutonium) using the measured values of the singles, doubles and triples detection rates. Traditionally, the detection rates are obtained from the counting statistics of neutron detectors. READ MORE

5. 3. Tools for the Advancement of Radiopharmaceutical Therapy

   Author : Emma Mellhammar; Forskningsgruppen för Systemisk strålterapi; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiopharmaceutical therapy; Nuclear medicine; Monte Carlo simulation; Intratherapeutic preclinical PET; Alpha particles; Beta Particles; radionuclides; Radiobiology; γ-H2AX; Dosimetry;

   Abstract : Radiopharmaceutical therapy is used to treat cancers and other diseases with radiolabeled pharmaceuticals. The treatment targets specific cells, and the emitted ionizing radiation cause cytotoxic damage. Dosimetry is performed to estimate the absorbed dose from the energy deposited in the body. READ MORE

6. 4. High-Efficiency SiC Power Conversion : Base Drivers for Bipolar Junction Transistors and Performance Impacts on Series-Resonant Converters

   Author : Georg Tolstoy; Hans-Peter Nee; Stig Munk-Nielsen; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon Carbide; Bipolar Junction Transistor BJT ; Resonant converter; Series-resonant converter SLR ; Base drive circuits; High- Efficiency Converters; High-Frequency Converters; Electrical Engineering; Elektro- och systemteknik;

   Abstract : This thesis aims to bring an understanding to the silicon carbide (SiC) bipolar junction transistor (BJT). SiC power devices are superior to the silicon IGBT in several ways. They are for instance, able to operate with higher efficiency, at higher frequencies, and at higher junction temperatures. READ MORE

7. 5. Atom Probe Tomography of Hard Nitride and Boride Thin Films

   Author : David L. J. Engberg; Lars Hultman; Magnus Odén; Guido Schmitz; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Atom probe tomography APT ; Ceramics; Nitrides; Borides;

   Abstract : Hard ceramic thin films, including TiSiN, ZrAlN, ZrB2, and ZrTaB2, with applications for wear-resistant coatings, have been studied using atom probe tomography and correlated with several other analytical techniques, including X-ray diffraction, electron microscopy, and elastic recoil detection analysis. Outstanding obstacles for quantitative atom probe tomography of ceramic thin films have been surmounted. READ MORE