Sökning: "contact prediction"

Visar resultat 11 - 15 av 116 avhandlingar innehållade orden contact prediction.

1. 11. Intensified primary health care for cancer patients : Utilisation of medical services

   Författare :Birgitta Johansson; Uppsala universitet; []
   Nyckelord :Medical sciences; Cancer; home care services; general practitioner; utilisation of medical services; prediction; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; omvårdnadsforskning med medicinsk inriktning; Caring Sciences;

   Sammanfattning : The aim of the present thesis is to evaluate the effects of an Intensified Primary Health Care (IPHC) intervention on GPs' and home care nurses' possibilities to monitor and support cancer patients, and on cancer patients utilisation of medical services. A further aim is to identify determinants of cancer patients' utilisation of such services. LÄS MER

3. 12. An Investigation of the Iron-Ore Wheel Damages using Vehicle Dynamics Simulation

   Författare :Saeed Hossein Nia; Sebastian Stichel; Matti Rantatalo; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; three-piece bogie; wear; RCF; prediction; traction; braking; heavy haul; simulation; Vehicle and Maritime Engineering; Farkostteknik;

   Sammanfattning : Maintenance cost is one of the important issues in railway heavy haul operations. For the iron-ore company LKAB, these costs are mainly associated with the reprofiling and changing of the wheels of the locomotives and wagons. The main reason for the wheel damages is usually surface initiated rolling contact fatigue (RCF) on the wheels. LÄS MER

4. 13. Condition measuring and lifetime modelling of disconnectors, circuit breakers and other electrical power transmission equipment

   Författare :Per Westerlund; Patrik Hilber; Tommie Lindquist; William Q Meeker; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reliability; maintenance; condition monitoring; disconnector; circuit breaker; Weibull distribution; prediction; risk analysis; decision making; beta distribution; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : The supply of electricity is important in modern society, so the outages of the electric grid should be few and short, especially for the transmission grid. A summary of the history of the Swedish electrical system is presented. The objective is to be able to plan the maintenance better by following the condition of the equipment. LÄS MER

5. 14. The long-term injured competitive athlete : A study of psychosocial risk factors

   Författare :Urban Johnson; Institutionen för psykologi; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; age; Adaptation; competitive athlete; coping; gender; long-term injury; mood; multiply-injured; non-returning; prediction; personality; psychosocial risk factors; sport; Applied and experimental psychology; sport; Tillämpad och experimentell psykologi;

   Sammanfattning : The thesis includes five separate studies concerned mainly with psychosocial aspects of the problems that athletes afflicted with long-term sport injuries face. The first study deals with relationships between personality variables, coping strategies and mood-levels, both in athletes participating in competitive sports and in a non-athlete reference groups. LÄS MER

7. 15. Time-domain modelling of high-frequency wheel/rail interaction

   Författare :Astrid Pieringer; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wheel rail interaction; railway noise; roughness; time domain; frictional instability; discrete irregularities; transient contact; non-Hertzian contact;

   Sammanfattning : The interaction between wheel and rail is the predominant source of noise emission from railway operations in a wide range of conventional speeds. On the one hand, this wheel/rail noise concerns rolling noise and impact noise caused by the vertical interaction excited by roughness and discrete irregularities of the wheel/rail running surfaces, respectively. LÄS MER