Search for dissertations about: "discharge coefficient"

Showing result 11 - 15 of 21 swedish dissertations containing the words discharge coefficient.

  2. 11. THE EFFECTS OF VARIOUS NOZZLE HOLE CONFIGURATIONS ON DIESEL ENGINE PERFORMANCE

    Author : Andreas Matsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Diesel engine combustion non-circular nozzle hole cavitation hydrogrinding optical study flame wall interaction;

    Abstract : Any improvement that can be done with the diesel engine to reduce emissions and fuel consumption is of importance. The aim of the studies presented in this thesis was to determine whether changes in the nozzle geometry of the fuel injection systems used in diesel engines might improve their emissions and fuel consumption. READ MORE

  4. 12. Postoperative recovery in daysurgery : Evaluation of psychometric properties and clinical usefulness of a questionnaire in day surgery

    Author : Katarina Berg; Mitra Unosson; Ewa Idvall; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Background: Day surgery has increased during recent decades in many countries and represents approximately 50% of surgical procedures performed in Sweden. Day surgery implies that the patient is admitted and operated on during the same day and discharged without an overnight stay at the surgery unit. READ MORE

  5. 13. Transient electrochemical methods for investigation of porous battery electrodes

    Author : Anton Lundqvist; KTH; []
    Keywords : electrochemical iimpedance spectroscopy; limn2o4; mathematical modelling; metal hydride; mcroelectrode; porous electrode; potential step; state of charge;

    Abstract : This thesis treats electrochemical methods used to studybattery materials. Two different types of materials are used asmodel systems in this study, metal hydride alloys used in thenickel-metal hydride battery and LiMn2O4suggested for use in the lithium-ion battery. Thetwo model systems are used to critically analyse differentexperimental methods. READ MORE

  6. 14. PARENTS’ POSTNATAL SENSE OF SECURITY (PPSS)- developing an instrument and description of important factors based on mothers’ and fathers’ experiences

    Author : Eva-Kristina Persson; Institutionen för hälsovetenskaper; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Evaluation; Instrument development; parents; participation; postnatal; PPSS; validity; sense of security;

    Abstract : The overall aim of this thesis was to develop and evaluate a specific instrument, measuring both mothers’ and fathers’ postnatal sense of security during the first postnatal week, and to explore and describe important factors associated with this. Data was collected from 2003 to 2009. READ MORE

  7. 15. Processing and Properties of zirconia-CNT composites

    Author : Latifa Melk; Pavol Hvizdos; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Engineering Materials; Smart machines and materials AERI ; Smarta maskiner och material FOI ;

    Abstract : In the last decades there has been growing interest in developing ceramic materials with high fracture toughness (KIc) and strength for structural applications. In the specific case of 3 mol % yttria-doped tetragonal zirconia (3Y-TZP), K_Ic can be increased by promoting phase transformation from tetragonal (t) to monoclinic (m) phase in front of a propagating crack tip referred to as transformation toughening. READ MORE