Search for dissertations about: "low back compression"

Showing result 16 - 18 of 18 swedish dissertations containing the words low back compression.

  2. 16. Biomechanical analyses of flywheel resistance exercise : From a space- and ground-based perspective

    Author : Maria Sjöberg; Ola Eiken; Elena Gutierrez-Farewik; Hans E Berg; Patrik Sundblad; Loren FZ Chiu; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; AnyBody Modeling System; concentric; eccentric; eccentric overload; inverse dynamics; knee extensors; microgravity; musculoskeletal deconditioning; net-joint moment; AnyBody Modeling System; excentrisk; excentrisk överbelastning; invers dynamik; knäextensorer; koncentrisk; ledmoment; mikrogravitation; muskuloskeletal nedbrytning; Teknik och hälsa; Technology and Health;

    Abstract : Astronauts suffer degradation of postural muscles and weight-bearing bones during long-duration spaceflight. Resistance exercise is used as a primary countermeasure against these degradations. READ MORE

  4. 17. On fiber network fracture mechanics and kink band formation in biocomposites

    Author : Vedad Tojaga; Sören Östlund; Artem Kulachenko; T. Christian Gasser; Emanuela Bosco; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Staggered; Monolithic; Fracture; Constitutive modeling; Strong discontinuity approach SDA ; Simo-Reissner beam theory; Geometrically exact beam theory; Minimeringsalgoritm; Simo-Reissner balkteori; Icke kompatibla deformationsmode; Konstitutiva model; Solid Mechanics; Hållfasthetslära;

    Abstract : This thesis summarizes seven appended papers dealing with: (1) The fracture of fibrous materials, e.g. READ MORE

  5. 18. Optimization of LDMOS Transistor in Power Amplifiers for Communication Systems

    Author : Ahsan-Ullah Kashif; Qamar-ul Wahab; Christer Svensson; Joachim Wurfl; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; RF-LDMOS; power amplifiers; technology CAD; load-pull; non-linear analysis; and switching analysis; Semiconductor physics; Halvledarfysik;

    Abstract : The emergence of new communication standards has put a key challenge for semiconductor industry to develop RF devices that can handle high power and high data rates simultaneously. The RF devices play a key role in the design of power amplifiers (PAs), which is considered as a heart of base-station. READ MORE