Sökning: "relative displacement"

Visar resultat 1 - 5 av 72 avhandlingar innehållade orden relative displacement.

  1. 1. Boundaries of displacement : Belonging and Return among Forcibly Displaced Young Georgians from Abkhazia

    Författare :Minna Lundgren; Roine Johansson; Anna Olofsson; Barzoo Eliassi; Tone Bringa; Mittuniversitetet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Georgia; Abkhazia; Caucasus; IDP; internal displacement; return; forced displacement; youth; border; riskscapes; uncertainty;

    Sammanfattning : This dissertation explores the implications of borders and boundaries for how forcibly displaced young Georgians from Abkhazia understand issues of belonging and return. My theoretical framework draws from theories on home and belonging as well as theories on border and boundary making, and locates them in geographies of uncertainty – or riskscapes – areas characterized by conflict and/or inequality. LÄS MER

  3. 2. Competition, Coexistence and Character Displacement : In a Young Avian Hybrid Zone

    Författare :Niclas Vallin; Anna Qvarnström; Andrew Hendry; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Competition; coexistence; hybridization; ecological speciation; character displacement; pied flycatcher; collared flycatcher; Biology; Biologi; Animal Ecology; Zooekologi;

    Sammanfattning : This thesis investigates the ecological and evolutionary implications of a recent secondary contact between two closely related bird species: collared (Ficedula albicollis) and pied (F. hypoleuca) flycatchers. LÄS MER

  4. 3. Vibrations induced by surface roughness in nonlinear rolling contacts

    Författare :Oskar Erik Lundberg; Ines Lopez Arteaga; Svante Finnveden; Will Graham; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rolling contact; nonlinear contact; contact stiffness; contact filter; state-dependent method; relative displacement; wheel-rail contact; Vehicle and Maritime Engineering; Farkostteknik;

    Sammanfattning : For efficient transportation in either trains, busses or passenger cars, rolling elements such as wheels, tyres, bearings and transmission elements are fundamental. The energy efficiency and the generation of noise and vibrations in rolling contacts depend on the surface roughness of contacting bodies. LÄS MER

  5. 4. On Suction Box Dewatering Mechanisms

    Författare :Peter Åslund; Bo Norman; Timoty Patterson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Suction box; vacuum; water removal; compressibility; displacement; rewetting; laboratory equipment; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Sammanfattning : In previous studies on suction box dewatering, three mechanisms were identified that determine the dry content of a web, viz. web compression, displacement of water by air and rewetting. LÄS MER

  7. 5. Submerged Transmission in Wave Energy Converters : Full Scale In-Situ Experimental Measurements

    Författare :Erland Strömstedt; Mats Leijon; Hans Bernhoff; Jan-Olov Aidanpää; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wave energy converter; direct drive; submerged transmission; piston rod; seal housing; sealing system; laser triangulation sensor; offshore measurements; relative displacement; vibrations; tilt angle; tilting; wear estimation.; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Different wave power technologies are in development around the world in different stages of prototype testing. So far only a few devices have been deployed offshore at full scale for extended periods of time. Little data is published about how these different devices perform. LÄS MER