Sökning: "A Henningsson"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden A Henningsson.

1. 1. Numerical computations of wind turbine wakes

   Författare :Stefan S. A. Ivanell; Dan Henningsson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Applied mechanics; Wind Energy; Wind Turbine; Wake; Circulation; Vortex; CFD; EllipSys3D; Actuator line; Teknisk mekanik; Engineering mechanics; Teknisk mekanik;

   Sammanfattning : Numerical simulations using CFD methods are performed for wind turbine applications. The aim of the project is to get a better understanding of the wake behaviour, which is needed since today’s industrial design codes for wind power applications are based on the BEM (Blade Element Momentum) method. LÄS MER

3. 2. A Fault Classification Approach to Software Process Improvement

   Författare :Kennet Henningsson; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Software development; Process improvement; Fault classification;

   Sammanfattning : The research presented is motivated by the demand for process improvement for companies active within software development. High demands on software quality are a reality. At the same time, short development time and low effort consumption are required. This stresses the necessity for process improvement. LÄS MER

4. 3. Internet grocery shopping : a necessity, a pleasurable adventure, or an act of love? : a longitudinal study 1998-2003 of 23 Swedish households

   Författare :Maria Frostling-Henningsson; Karin E Ekström; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Internet; grocery shopping; longitudinal; consumers; in-depth interviews; Business studies; Företagsekonomi; Business Administration; företagsekonomi;

   Sammanfattning :   Shopping for groceries on the Internet has been an alternative for Swedish consumers since 1996. Despite a huge interest in this behavior from consumers, retailers and the media, Internet grocery shopping has not diffused among the Swedish consumers. Many of the Internet grocery distributors have shut down their business. LÄS MER

5. 4. On the role of migration for the distribution of arctic birds - a circumpolar perspective

   Författare :Sara Henningsson; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; bird migration; broad-scale distributions; geographic breeding range; geography of migration; non-breeding range; barriers to migration; Arctic birds; evolution of migration routes;

   Sammanfattning : Flexibility as well as constraints to the evolution of migration routes has the possibility of affecting large-scale patterns of geographical ranges of animals both by facilitating, but sometimes restricting, accessibility to and colonization of new regions. This dissertation concerns the broad-scale effects migration has on the distributional patterns of birds in the Arctic. LÄS MER

7. 5. Nitric oxide (NO) and carbon monoxide (CO): A novel class of messenger molecules regulating insulin and glucagon secretion

   Författare :Ragnar Henningsson; Institutionen för experimentell medicinsk vetenskap; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; carbon monoxide CO ; nitric oxide NO ; Nitric oxide synthase NOS ; Insulin and glucagon secretion; cyclic nucleotides; Endocrinology; secreting systems; diabetology; Endokrinologi; sekretion; diabetologi; Heme oxygenase HO ;

   Sammanfattning : During the last decade it has been shown that nitric oxide (NO) and carbon monoxide (CO) are produced in our own body, and that they constitute a novel class of messenger molecules. In 1992 a constitutive NO-producing NO-synthase (cNOS) was found in the islets of Langerhans, and in 1997 we could show for the first time that the islets also contained a CO-producing constitutive heme oxygenase (HO-2). LÄS MER