Search for dissertations about: "Per-Olof Johansson"

Showing result 1 - 5 of 7 swedish dissertations containing the words Per-Olof Johansson.

2. 1. Essays on Financing and Returns on Investment

   Author : James Dzansi; Per-Olof Bjuggren; Dan Johansson; Börje Johansson; Una O. Osili; Jönköping University; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

   Abstract : This dissertation consists of an introductory chapter and three independent essays on financing investment and their returns. The first essay studies the impact of remittances on domestic investment. The analysis is carried out with a focus on the moderating roles of domestic financial development and institutional quality. READ MORE

4. 2. Buildings and district heating - contributions to development and assessments of efficient technology

   Author : Per-Olof Johansson; Energihushållning; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; District heating; hydronic space heating; natural circulation; lowered return temperature; primary energy; add-on-fan blower;

   Abstract : The objective of this thesis is to contribute to improved performance of district heating systems by focusing on three items. Item 1: Study of three methods for improving the performance of sub-systems within buildings connected to the distribution network. The methods can be considered as more or less innovative. READ MORE

5. 3. Design for Participation and Inclusion will Follow : Disabled People and the Digital Society

   Author : Stefan Johansson; Jan Gulliksen; Per-Olof Hedvall; Bodil Jönsson; Katarina Lindblad-Gidlund; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Design; Accessibility; Universal Design; Participation; Disability Digital Divide; Inclusion; Människa-datorinteraktion; Human-computer Interaction;

   Abstract : Digitalization is rapidly taking over all aspects of society, but still there are parts of the population who have to struggle for access to, and to be able to use, the digital resources. Design processes and outcomes in the form of artefacts, that takes accessibility into account, is key to participation. READ MORE

6. 4. Enhanced District Heating Technology : Maintaining Future System Feasibility

   Author : Helge Averfalk; Sven Werner; Urban Persson; Mei Gong; Patrick Lauenburg; Kerstin Sernhed; Per-Olof Johansson Kallioniemi; Louise Ödlund; Högskolan i Halmstad; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : When heat demand and high temperature heat supply gradually decreases in the future, then it will effect district heating systems ability to compete on the heat market. A good way to mitigate less district heating feasibility is to operate systems with lower temperature levels and the most conceivable way to achieve lower temperature levels is to decrease return temperatures. READ MORE

7. 5. Growth and characterisation of InGaAs-based quantum dots-in-a-well infrared photodetectors

   Author : Linda Höglund; Per-Olof Holtz; Mattias Hammar; Stefan Johansson; Sanjay Krishna; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material physics with surface physics; Materialfysik med ytfysik;

   Abstract : This thesis presents results from the development of quantum dot (QD) based infrared photodetectors (IPs). The studies include epitaxial growth of QDs, investigations of the structural, optical and electronic properties of QD-based material as well as characterisation of the resulting components. READ MORE