Sökning: "Erik back"

Visar resultat 1 - 5 av 81 avhandlingar innehållade orden Erik back.

1. 1. On Uncertainty and Data Worth in Decision Analysis for Contaminated Land

   Författare :Pär-Erik Back; Chalmers tekniska högskola; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; uncertainty; decision analysis; risk; sampling; data worth; soil sampling; contaminated land;

   Sammanfattning : Contaminated soil and groundwater is a problem that has received increased attention in the last decade. Decision-making about investigation strategies, protective actions, and remedial actions is based on sparse and uncertain information, primarily data of contaminant concentrations and geological information. LÄS MER

3. 2. Value of Information Analysis for Site Investigations in Remediation Projects

   Författare :Pär-Erik Back; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; uncertainty; value of information; soil; decision analysis; sampling; remediation; contaminated land; site investigation;

   Sammanfattning : Site investigations of contaminated land are associated with high costs. From a societal point of view, just enough economic resources should be spent to allow societys limited resources to be allocated optimally to sustainable development. LÄS MER

4. 3. Pension reforms and retirement behaviour

   Författare :Erik Glans; Henry Ohlsson; Jan Pettersson; Erik Hernaes; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Retirement; pension reform; Economics; Nationalekonomi; nationalekonomi; Economics;

   Sammanfattning : This thesis consists of three self-contained essays. Essay 1. Knowledge about how elderly workers react to changes in pension benefits is important in guiding the design of social security systems. This essay contributes to this knowledge by examining the effect of changes in replacement rates on part-time retirement behaviour in Sweden. LÄS MER

5. 4. Modelling and Characterisation of the Martensite Formation in Low Alloyed Carbon Steels

   Författare :Jessica Gyhlesten Back; Lars-Erik Lindgren; Göran Engberg; Bevis Hutchinson; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dilatometry; Hardness; EBSD; Martensite; Austenite; Kurdjumov-Sachs; Phase transformation; Modelling; Material Mechanics; Materialmekanik; Steel Forming and Surface Engineering;

   Sammanfattning : The current work contains experimental and theoretical work about the formation of martensite from the austenitic state of the steel Hardox 450. Simulation of rolling and subsequent quenching of martensitic steel plates requires a model that can account for previous deformation, current stresses and the temperature history, therefore dilatometry experiments were performed, with and without deformation. LÄS MER

7. 5. Low Back Pain : With Special Reference to Manual Therapy, Outcome and its Prognosis

   Författare :Marie Grunnesjö; Kurt Svärdsudd; Lars-Erik Strender; Stefan Blomberg; Rune Hedlund; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Low Back Pain; Manual therapy; Stay active care; Mobilisation; Manipulation; Pain drawing; Return to work; Prognosis; Disability rating; Pain; Family medicine; Allmänmedicin; Allmänmedicin; Family Medicine;

   Sammanfattning : Objectives. To assess outcome of manual therapy in addition to stay-active care in sub-acute low back pain patients and to investigate the predictive power of pain drawing sketch variables for return to work. Materials and methods. LÄS MER