Sökning: "feed back loop"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden feed back loop.

  1. 1. Sjukskrivningssystemet : Sjuka som blir arbetslösa och arbetslösa som blir sjukskrivna

    Författare :Daniel Melén; Sociologiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; work inability; social security system; welfare state; social insurance agency; employment agency; unemployed ill; labor market; residual unemployment; unemployment; absence due to illness; long-term illness; feed back loop; the swedish model; fieldwork; phenomenology; ethnomethodology; looping effect; disability; work ability; den svenska modellen; fältarbete; socialförsäkring; den svenska välfärdsstaten; Välfärd; arbetslösa sjukskrivna; arbetslöshet; sjukskrivning; arbetsförmedlingen; fenomenologi; långtidssjukskrivning; etnometodologi; försäkringskassan; samverkan; dold arbetslöshet; arbetsförmåga; arbetsmarknad; arbetsoförmåga;

    Sammanfattning : In 1997 the number of long-term absences due to illness began and continued to rise in Sweden. Traditional explanations of why this is so have been centered on either blaming the individual or blaming the work environment. LÄS MER

  3. 2. Fixed-Feedback SISO Adaptive Control

    Författare :Magnus Nilsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Two-Degrees-of-Freedom Control; Feedforward Control; Adaptive Control;

    Sammanfattning : Adaptive control is an attractive method to solve control problemssince the tedious task of identifying process behavior to find asuitable design for the controller is taken care of by the adaptivecontroller itself. It may be difficult, however, to guaranteerobustness (in the sense of desired disturbance attenuation andstability margins) for traditional adaptive schemes since theircorresponding loop gain is time varying. LÄS MER

  4. 3. Nonaxisymmetric experimental modal analysis and control of resistive wall MHD in RFPs : System identification and feedback control for the reversed-field pinch

    Författare :K Erik J Olofsson; Per Brunsell; Marco Ariola; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Magnetic confinement fusion; Reversed-field pinch; System identification; Magnetohydrodynamics; Modal analysis; Automatic control; Resistive wall modes;

    Sammanfattning : The reversed-field pinch (RFP) is a device for magnetic confinement of fusion plasmas. The main objective of fusion plasma research is to realise cost-effective thermonuclear fusion power plants. The RFP is highly unstable as can be explained by the theory of magnetohydrodynamics (MHD). LÄS MER

  5. 4. The impact of cormorant nesting colonies on plants and arthropods

    Författare :Gundula S. Kolb; Peter Hambäck; Lenn Jerling; Post David; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; seabirds; cormorants; islands; nitrogen; phosphorus; plants; arthropods; δ15N; Baltic Sea; ecological stoichiometry; species richness; species composition; numeric response; Biology; Biologi; Plant Ecology; växtekologi;

    Sammanfattning : Seabirds concentrate large amounts of marine nutrients on their nesting islands. This nutrient input can have large consequences for island food webs and community structure. The high nutrient load may also cause runoff into surrounding waters and affect marine communities. LÄS MER

  7. 5. The role of estrogen in growth plate chondrogenesis

    Författare :Ola Nilsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Overall body proportion is determined by the size of the skeleton, which in turn is determined by the rate and duration of longitudinal bone growth. Longitudinal bone growth occurs at the growth plate and is regulated by a variety of hormones and growth factors. LÄS MER