Search for dissertations about: "Electrical Engineering"

Showing result 1 - 5 of 4384 swedish dissertations containing the words Electrical Engineering.

  1. 1. Electrical Bioimpedance Cerebral Monitoring: Fundamental Steps towards Clinical Application

    University dissertation from Chalmers University of Technology

    Author : Fernando Seoane; Fernando Seoane Martínez; KTH.; Högskolan i Borås.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomedicin; bioteknik; non-invasive monitoring; electrical bioimpedance; spectroscopy; biomedical instrumentation; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; Elektronisk mät- och apparatteknik; Electronic measurement and instrumentation; Elektroteknik; Electrical engineering; Medicinsk teknik; Medical engineering; Electrical Bioimpedance Spectroscopy; Hypoxia; Ischemia; Stroke; Brain Monitoring; Impedance Measurements; Biomedical Instrumentation; Non-invasive Monitoring;

    Abstract : Neurologically related injuries cause a similar number of deaths ascancer, and brain damage is the second commonest cause of death in theworld and probably the leading cause of permanent disability. Thedevastating effects of most cases of brain damage could be avoided if itwere detected and medical treatment initiated in time. READ MORE

  2. 2. Modeling and Estimation of Phase Noise in Oscillators with Colored Noise Sources

    University dissertation from Chalmers University of Technology

    Author : Mohammad Reza Khanzadi; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Oscillator Phase Noise; Voltage-controlled Oscillator; Phase-Locked Loop; Colored Phase Noise; Phase Noise Model; Bayesian Cramer-Rao Bound; Maximum a Posteriori Estimator; Extended Kalman Filter Smoother; Mean Square Error.;

    Abstract : The continuous increase in demand for higher data rates due to applications with massive number of users motivates the design of faster and more spectrum efficient communication systems. In theory, the current communication systems must be able to operate close to Shannon capacity bounds. READ MORE

  3. 3. On tracing flicker sources and classification of voltage disturbances

    University dissertation from Chalmers University of Technology

    Author : Peter Axelberg; Högskolan i Borås.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; power transmission and distribution; digital signal processing; power quality monitoring; light flicker; power system disturbance; support vector machines; Medicinteknik; voltage dips; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; Elektroteknik; Electrical engineering; voltagedips; Support Vector Machines;

    Abstract : Developments in measurement technology, communication and data storage have resulted in measurement systems that produce large amount of data. Together with the long existing need for characterizing the performance of the power system this has resulted in demand for automatic and efficient information-extraction methods. READ MORE

  4. 4. Detection of Partial Discharges at Fast Rising Voltages

    University dissertation from Chalmers University of Technology

    Author : Thomas Hammarström; Chalmers tekniska högskola.; Chalmers University of Technology.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; Elektronik; Electronics; Elektronisk mät- och apparatteknik; Electronic measurement and instrumentation; Elkraftteknik; Electric power engineering; Konstruktionsmaterial; Construction materials; Partial discharges; square like voltages; measurements; cavities; repetitive voltages; short rise time; high dV dt.;

    Abstract : The present demand for higher efficiency and flexibility in the energy sector has led to an increased use of power electronic generated waveforms as these allow energy conversion between different frequencies including DC. The generated waveforms are usually synthesized by so called Pulse Width Modulation (PWM) techniques, where the desired waveform is approximated by a number of square shaped pulses with a short rise time. READ MORE

  5. 5. Control Aspects of Complex Hydromechanical Transmissions with a Focus on Displacement Control

    University dissertation from Linköping : Linköping University Electronic Press

    Author : L. Viktor Larsson; Linköpings universitet.; Linköpings universitet.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis deals with control aspects of complex hydromechanical transmissions. The overall purpose is to increase the knowledge of important aspects to consider during the development of hydromechanical transmissions to ensure transmission functionality. READ MORE