Sökning: "spring characteristic"

Visar resultat 6 - 10 av 11 avhandlingar innehållade orden spring characteristic.

  1. 6. Women on sick leave for long-term musculoskeletal pain : Factors associated with work ability, well-being and return to work

    Författare :Mamunur Rashid; Annika Nilsson; Marja-Leena Kristofferzon; Marina Heiden; Katja Boersma; Högskolan i Gävle; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biopsychosocial model; musculoskeletal pain; postal survey; prognostic factors; return to work; sick leave; women of working age; work ability and well-being; inget Strategiskt forskningsområde SFO ; no Strategic Research Area SFO ;

    Sammanfattning : Background: Taking sick leave (SL) for long-term musculoskeletal pain (MSP), predominantly in the neck, shoulders and back, is common among women in Sweden. Long-term MSP affects their daily life and causes impaired work ability and long-term SL. LÄS MER

  3. 7. Ice, wood and rocks : regulating elements in riverine ecosystems

    Författare :Johanna Engström; Christer Nilsson; Roland Jansson; James Helfield; Tenna Riis; Umeå universitet; []
    Nyckelord :riparian zone; timber floating; river restoration; cut-off side channels; hydrochory; large wood; anchor ice; fish;

    Sammanfattning : Riparian ecosystems are of great importance in the landscape, connecting landscape elements longitudinally and laterally and often encompassing sharp environmental gradients in ecological processes and communities. They are influenced by fluvial disturbances such as flooding, erosion and sediment deposition, which create dynamic and spatially heterogeneous habitats that support a high diversity of species. LÄS MER

  4. 8. Finnskägg, tåtel och sia : Om folkliga namn på gräs

    Författare :Margareta Svahn; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; gräs; namnforskning; botanik; etnobotanik; Dialektforskning; Dialectology; Språkhistoria; Language History; Svenska; Swedish;

    Sammanfattning : By collecting and analysing plant names linguistically, a knowledge of popular botany and its relationshipto scientific botany can be obtained.This study has two primary aims: to describe the popular botanical view of the part of thevegetal world represented by grasses and to illustrate the dialectal use of plant names. LÄS MER

  5. 9. Sensor Fusion and Control Applied to Industrial Manipulators

    Författare :Patrik Axelsson; Mikael Norrlöf; Fredrik Gustafsson; Paolo Rocco; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial Robots; Sensor Fusion; Iterative Learning Control; H-infinity Controller; Controllability; Extended Kalman Filter; Particle Filter; Expectation Maximisation; Continuous-time Filtering; Norm-optimal ILC;

    Sammanfattning : One of the main tasks for an industrial robot is to move the end-effector in a predefined path with a specified velocity and acceleration. Different applications have different requirements of the performance. LÄS MER

  7. 10. Design of soundproof panels via metamaterial concept

    Författare :Zibo Liu; Leping Feng; Romain Rumpler; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The goal of the work is to find a way to improve the sound insulation properties of different types of panels in order to meet different requirements. Inspired by the nontrivial behavior of the locally resonant acoustic metamaterials, this concept is introduced into the design of structures in order to explore the potential ways to improve the sound insulation behavior in the relevant specific frequency regions. LÄS MER