Sökning: "frequency linköping"

Visar resultat 1 - 5 av 435 avhandlingar innehållade orden frequency linköping.

  1. 1. Trapezius muscle fatigue and electromyographic frequency analysis

    Författare :Tommy Öberg; Linköpings universitet; []
    Nyckelord :EMG; Spectrum; Frequency; Fatigue; Trapezius; Myalgia; MEDICINE; MEDICIN;

    Sammanfattning : This study, comprising 6 separate articles, is concerned with different validity and reliability aspects of the electromyogram mean power frequency (MPF) as an estimator of localized musele fatigue in the trapezius muscle. A series of new, and partly controversial and problematic findings are reported. LÄS MER

  3. 2. Multi-frequency SFDI : depth-resolved scattering models of wound healing

    Författare :Luigi Belcastro; Rolf Saager; Hanna Jonasson; Lise Lyngsnes Randeberg; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SFDI; Light scattering; Wound healing;

    Sammanfattning : With optical techniques, we refer to a group of methods that use of light to perform measurements on matter. Spatial frequency domain imaging (SFDI) is an optical technique that operates in the spatial frequency domain. LÄS MER

  4. 3. Frequency Domain Identification of Continuous-Time Systems : Reconstruction and Robustness

    Författare :Jonas Gillberg; Lennart Ljung; Fredrik Gustafsson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Discrete-time domain; Frequency-domain identification; Signal processing; Frequency-domain; Automatic control; Reglerteknik;

    Sammanfattning : Approaching parameter estimation from the discrete-time domain is the dominating paradigm in system identification. Identification of continuous-time models on the other hand is motivated by the fact that modelling of physical systems often take place in continuous-time. LÄS MER

  5. 4. High frequency electronic packaging : SBU-materials, material characterization, simulation and processing

    Författare :Christian Johansson; Hjalmar Hesselbom; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dielectric loss; high frequency electrical characterization; microwave circuits; multilayer thin film technology; ORMOCER; permittivity; sequential build up; silicone elastomer;

    Sammanfattning : Electronic packaging continues to move towards improved performance and lower cost. Requirements of higher performance, reduced size, weight and cost of both High Density Interconnects (HDI) and high frequency (HF) devices has led to the search for new: materials, material combinations, methods, processes and production equipment. LÄS MER

  7. 5. On the Frequency Domain Analysis of Nonlinear Systems

    Författare :Karin Ståhl; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Frequency domain; Nonlinear systems; Oscillations; Volterra series;

    Sammanfattning : In this report we study how the Volterra series description of nonlinear systems can be applied to some different problems.We study oscillations in nonlinear systems. LÄS MER