Sökning: "Urban Persson"

Visar resultat 16 - 20 av 27 avhandlingar innehållade orden Urban Persson.

1. 16. Hydrogeological Methods in Geotechnical Engineering: Applied to settlements caused by underground construction

   Författare :Jenny Persson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; excavation; tunnel; hydrogeology; consolidation; pumping test; Groundwater; inflow rate; settlement; transmissivity; pore pressure; clay;

   Sammanfattning : Improvement in the infrastructure in urban areas generally involves underground construction with tunneling and deep excavations. One important consideration when constructing in cities founded on soft soil is settlement resulting from groundwater drawdown. The potential cost of excessive settlement in these projects is immense. LÄS MER

3. 17. The Unloading Modulus of Soft Soil: A Field and Laboratory Study

   Författare :Jenny Persson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; swelling; heave; Clay; case study; excavation;

   Sammanfattning : Improved infrastructure in urban areas often necessitates underground construction, where the unloading behaviour of the soil is of importance for predicting the amount of heave and how long it will take for the soil to swell. It is of particular interest to study the need for the installation of tension piles, as well as whether the tunnel will be subjected to settlement or heave in the long term. LÄS MER

4. 18. Prediction of Energy Use of a Swedish Secondary School Building : Building Energy Simulation, Validation, Occupancy Behaviour and Potential Energy-Efficiency Measures

   Författare :Jessika Steen Englund; Bahram Moshfegh; Mathias Cehlin; Jan Akander; Tomas Persson; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; building energy simulation; school building; field measurements; energy use; heat power demand; validation; occupancy behaviour; airing; energy-efficiency measures; byggnadssimulering; skolbyggnad; fältmätningar; energianvändning; värmeeffektbehov; validering; brukarbeteende; vädring; energieffektiviseringsåtgärder; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : Residential and public buildings account for about 40% of the annual energy use in Europe. Many buildings are in urgent need of renovation, and reductions in energy demand in the built environment are of high importance in both Europe and Sweden. Building energy simulation (BES) tools are often used to predict building performance. LÄS MER

5. 19. Film i stadens tjänst: Göteborg 1938-2015

   Författare :Erik Florin Persson; Göteborgs universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; beställningsfilm; stadsfilm; stadsmarknadsföring; kommunal reklam; kommunal information; lokal filmhistoria; useful cinema; non-theatrical film; sponsored films; non-fiction film;

   Sammanfattning : The aim of this dissertation is to map and analyze the production of municipal city films in Gothenburg between 1938 and 2015 in relation to economic and political changes of the city. Covering a total of fourteen larger film projects as well as several shorter films, the focus of the study lies both on the commission, distribution, and screening of the studied films and on the manner in which the city of Gothenburg and its inhabitants are represented. LÄS MER

7. 20. Simulation based evaluation of flexible transit

   Författare :David Leffler; Erik Jenelius; Wilco Burghout; Oded Cats; Jan Persson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transportvetenskap; Transport Science;

   Sammanfattning : Transport authorities are faced with the challenge of making effective use of existing transportation infrastructure under increasing needs of transport accessibility, sustainability, and safety. The ongoing growth and adoption of shared mobility options, the anticipation of automated vehicles, and the increased availability of real-time data brought on with the developments of Intelligent Transport Systems, have all inspired many innovations in public transit design. LÄS MER