Search for dissertations about: "transmission system reliability"

Showing result 16 - 20 of 95 swedish dissertations containing the words transmission system reliability.

  2. 16. Monocrystalline-Silicon Based RF MEMS Devices

    Author : Mikael Sterner; Joachim Oberhammer; Roberto Sorrentino; KTH; []
    Keywords : RF MEMS; radio frequency; microelectromechanical system; microsystem technology; monocrystalline silicon; switch; tuneable capacitor; high-impedace surface; phase shifter; rectangular waveguide; transmission line;

    Abstract : This thesis presents novel radio-frequency microelectromechanical (RF MEMS) devices, for microwave and millimeter wave applications, designed for process robustness and operational reliability using monocrystalline silicon as structural material. Two families of RF MEMS devices are proposed. READ MORE

  4. 17. Flip-Chip Interconnect for Millimeter-Wave Packaging Applications

    Author : Li-Han Hsu; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Underfill; Packaging; V-band; Fabrication; Millimeter-Waves; MMICs; 60 GHz; Multi-Chip Module; Interconnect; Organic laminate; Reliability.; Flip-Chip; Design;

    Abstract : In recent years, with the demands for wireless communication systems increas rapidly, the operating frequency for the portable wireless is moving toward millimeter-waves. Millimeter-wave wireless communication systems require not only suitable functional IC components but also competent package with low cost and good interconnect performance. READ MORE

  5. 18. Muscle Tenderness in Women

    Author : Ann Persson; Neurokirurgi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Reliability.; Electronic algometer; Pain threshold; Pain measurement; Shoulder pain; Tenderness; Muscle; Nociception; Central processing; Physical medicine; kinesitherapy; revalidation; rehabilitation; Rehabilitering medicinsk och social ;

    Abstract : Longstanding pain experienced from the musculoskeletal system is reported by one third of the Swedish population. The underlying mechanisms are not known in the majority of cases. READ MORE

  6. 19. High Frequency Model of Electrified Railway Propulsion System for EMC Analysis

    Author : Kelin Jia; Rajeev Thottappillil; Hans Bängtsson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electromagnetic compatibility; railway; propulsion system; multitransmission line; ac motor modeling; vector fitting; fast transient;

    Abstract : A model of the electrified railway propulsion system working in a wide frequency range is studied in this thesis. The high frequency modeling is the first stage to study and predict the Electromagnetic compatibility (EMC) problems in the electrified railway propulsion system, which are safety and reliability issues of high concern. READ MORE

  7. 20. On Reliable and Deadline-Constrained Communication in Wireless Industrial Networks

    Author : Kan Yu; Mats Björkman; Johan Åkerberg; Mikael Gidlund; Maria Lindén; Song Han; Mälardalens högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Science; datavetenskap;

    Abstract : Along with the quick development of wireless communication technologies, industrial automation networks are also in unceasing evolution. Industrial wireless sensor and actuator networks (IWSAN) have been increasingly adopted in industrial automation systems. READ MORE