Search for dissertations about: "deterioration models"

Showing result 1 - 5 of 88 swedish dissertations containing the words deterioration models.

2. 1. On the On-line Tools for Treatment of Deterioration in Industrial Processes

   Author : Christer Karlsson; Erik Dahlquist; Risto Ritala; Mälardalens högskola; []
   Keywords : Deterioration; Industrial Processes; Sensors; Process models; Neural networks; Bayesian networks; Data reconciliation; Steam turbines; Boilers; Energy- and Environmental Engineering; energi- och miljöteknik;

   Abstract : For industrial processes high availability and efficiency are important goals in plant operation. This thesis presents studies and development of tools for on-line treatment of process deterioration and model and sensor errors in order to achieve these goals. READ MORE

4. 2. Rut Depth Prediction on Flexible Pavements - Calibration and Validation of Incremental-Recursive Models

   Author : Sven Agardh; Trafik och väg; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; offshore technology; Civil engineering; hydraulic engineering; Teknik; Technological sciences; PM-system; deterioration models; rutting; pavement design; soil mechanics; Väg- och vattenbyggnadsteknik;

   Abstract : In later years the development of pavement design has gone towards more and more analytically based methods. Future design will probably be based on incremental deterioration models. The objective is to evaluate different types of rut depth prediction models for an incremental design process. READ MORE

5. 3. Deterioration Models and Road Capital as Tools in Performance Contracts for Pavement Maintenance

   Author : Peter Ekdahl; Trafik och väg; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknik; pavement management system; performance contract; pavement maintenance; deterioration model; Technological sciences; road capital; Social sciences; Samhällsvetenskaper;

   Abstract : A reorganization of the Swedish National Road Administration (SNRA) has urged a demand to work as a professional agency only, without any work by direct labor. This structure has enforced a change in how to handle the pavement maintenance and performance contracts are being promoted since they encourage product development and sustainability. READ MORE

6. 4. Fatigue of Asphalt Mixes - Theory of Viscoelasticity and Continuum Damage Mechanics Applied to Uniaxial Fatigue Data from Laboratory Tests

   Author : Richard Nilsson; Trafik och väg; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; asphalt mixture; viscoelastic; Fatigue; deterioration models; Continuum Damage Mechanics; laboratory test; uniaxial; hydraulic engineering; Civil engineering; offshore technology; soil mechanics; Väg- och vattenbyggnadsteknik;

   Abstract : The advance of analytic (mechanistic) design methods increases the need for fundamental material properties. Fatigue cracking due to traffic loading, in combination with permanent deformation (rutting), thermal cracking, irregularities, frost heave and reflective cracking are some of the major criteria used when designing an asphalt concrete pavement. READ MORE

7. 5. Theoretical understanding of the coping approaches and social support experiences of relatives of critically ill patients during the intensive care unit stay and the recovery period at home

   Author : Ingrid Johansson; Fridlund Bengt; Cathrine Hildingh; Bodil Wilde; Linköpings universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; coping; critical care; family; models; qualitative methods; social support; Caring sciences; Vårdvetenskap;

   Abstract : Relatives may experience a difficult and demanding situation when the patient is critically ill. During the period in the intensive care unit (ICU), the relatives may be subject to strong emotions of an existential nature, and the situation may involve several stressors as a result of changed roles, responsibilities and routines. READ MORE