Search for dissertations about: "gas exchange"

Showing result 16 - 20 of 282 swedish dissertations containing the words gas exchange.

2. 16. Towards a changed view on greenhouse gas exchange in the Arctic: new findings and improved techniques

   Author : Mikhail Mastepanov; Institutionen för naturgeografi och ekosystemvetenskap; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; methane; carbon dioxide; greenhouse gas; chamber; Arctic; fen; permafrost;

   Abstract : Arctic ecosystems represent an important component in the global terrestrial exchange of greenhouse gases and energy with the atmosphere. In the changing climate, which is most pronounced in the Arctic, the possible scenarios of greenhouse gas exchange response should be seriously considered in predictive climate modelling efforts. READ MORE

4. 17. 1-D simulation of turbocharged SI engines : focusing on a new gas exchange system and knock prediction

   Author : Christel Elmqvist-Möller; Hans-Erik Ångström; Daniel Håkansson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spark ignited engines; 1-D flow simulation; knock; Divided Exhaust Period; turbocharged engines; Other engineering mechanics; Övrig teknisk mekanik;

   Abstract : This licentiate thesis concerns one dimensional flow simulation of turbocharged spark ignited engines. The objective has been to contribute to the improvement of turbocharged SI engines’ performance as well as 1 D simulation capabilities. Turbocharged engines suffer from poor gas exchange due to the high exhaust pressure created by the turbine. READ MORE

5. 18. Method Development in Quantitative and Structural Proteomics using Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

   Author : Charlotte Hagman; Per Håkansson; Jonas Bergquist; Jos Buijs; Michael Przybylski; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biotechnology; Cerebrospinal Fluid; Electrospray Ionization; Fourier Transform Ion Cyclotron Resonance Mass Spectrometry; Global Markers; High Performance Liquid Chromatography; Gas-Phase Exchange; Hydrogen Deuterium Exchange; Plasma; Protoemics; Quantification; Structural Elucidation; Bioteknik; Bioengineering; Bioteknik;

   Abstract : In this thesis, methods for studying different aspects of proteomics were developed with Fourier Transform Ion Cyclotron Resonance, (FTICR), mass spectrometry. The FTICR technique provides ultra-high mass resolving power, mass accuracy at sub ppm level and sensitivity in the attomole region. READ MORE

6. 19. Particle dynamics during biomass devolatilization : Momentum exchange and particle dispersion

   Author : Angel David Garcia Llamas; Kentaro Umeki; Rikard Gebart; Per Gren; Peter Glarborg; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biomass; devolatilization; rocketing; PIV; PTV; Energiteknik; Energy Engineering;

   Abstract : Devolatilization is a heat-driven thermochemical process in which a liquid or a solid fuel releases mass in the form of volatile compounds after drying, as a result of the combination of endothermic and exothermic reactions. It differs from pyrolysis in that it does not require an inert atmosphere and that the reactant must be either solid or liquid. READ MORE

7. 20. NHBD Lung Transplantation

   Author : Per Wierup; Thoraxkirurgi; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; orthopaedics; traumatology; Kirurgi; ortopedi; traumatologi; Surgery; rat; pig; edema formation; lung preservation; bronchial healing; gas exchange; lung evaluation; Lung transplantation; non-heart-beating donor NHBD ;

   Abstract : The waiting list for lung transplantations world-wide is steadily growing. So, the use of lungs from non-heart-beating donors (NHBD) needs to be addressed. Hence, the aim of this thesis was to evaluate, in realistic animal models, the new donor organ concept: NHBD transplantation. READ MORE