Search for dissertations about: "Reduction and Validation"

Showing result 1 - 5 of 150 swedish dissertations containing the words Reduction and Validation.

2. 1. Saving Energy in Construction Machinery using Displacement Control Hydraulics : Concept Realization and Validation

   Author : Kim Heybroek; Jan-Ove Palmberg; Jochen Pohl; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluid mechanics; Strömningsmekanik;

   Abstract : In the sector of mobile hydraulics, valve controlled systems are predominant. In these systems the load force and speed are adjusted by control valves. In machines where multiple drives are used in parallel at extremely varying loads the energy efficiency of such systems is often compromised over large working regions. READ MORE

4. 2. Optimization and Model Validation of Transonic Compressors

   Author : Lars R Ellbrant; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; compressor; optimization; design; metamodels; CFD; validation; multiobjective;

   Abstract : Economical aspects such as reduced specific fuel consumptions and ever growing environmental requirements on emissions and percieved noise levels, are the major drivers in the search for improvement of aircraft engines. For turbofan engines, the global trend is towards higher efficiency which is accomplished by increasing component efficiencies, the bypass ratio and overall pressure ratio while keeping the engine weight low. READ MORE

5. 3. Breast Hypertrophy and outcome of Breast Reduction Surgery

   Author : Richard Lewin; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Breast; Reduction; Mammaplasty; HRQL; Complications; Validation; Reliability; Breast Hypertrophy; Questionnaire;

   Abstract : Aim: The overall aim of this thesis was to improve our knowledge of breast hypertrophy in women, its associated problems, and the outcome of breast reduction. Patients and methods: I. Five hundred and twelve woman were studied retrospectively for prevalence of and risk factors for complications. II. READ MORE

6. 4. A Sociological Approach to Indoor Environment in Dwellings : Risk factors for Sick Building Syndrome (SBS) and Discomfort

   Author : Karin Engvall; Dan Norbäck; Eva Sandstedt; Göran Strid; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; Indoor environment; Questionnaire; Atopy; Building age; Indoor air quality; Sick building syndrome SBS ; Validation; Dwelling; Energy conservation; Mechanical ventilation; Building dampness; Building reconstruction; Wood heating; Electric heating; Heat pump; Thermal Insulation; Sealing; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin; arbets- och miljömedicin; Occupational and Environmental Medicine;

   Abstract : The principal aim was to study selected aspects of indoor environment in dwellings and their association with symptoms compatible with the sick building syndrome (SBS). A validated questionnaire was developed specifically for residential indoor investigations, using sociological principles and test procedures. READ MORE

7. 5. Trauma Care - Implementation, Evaluation and Validation

   Author : Lina Holmberg; Kevin Mani; Fredrik Linder; Anders Wanhainen; Håkan Andréasson; Shariq S. Raza; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Trauma triage criteria; undertriage; validation; trauma registry; accuracy; trauma trends; penetrating trauma; mortality.;

   Abstract : Trauma is a major cause of death and morbidity in all ages, which makes continuous improvement of trauma care a high priority. During the last decades, Sweden’s trauma system has evolved with initiation of a national trauma registry (SweTrau) in 2011 and the Swedish National Trauma Triage criteria (SNTTC) in 2017. READ MORE