Sökning: "Öhman m"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden Öhman m.

1. 1. Social Entrepreneurship and Influence on Regional Firm Demography

   Författare :Habib M. Kachlami; Martin Johanson; Peter Öhman; Heléne Lundberg; Mats Westerberg; Mittuniversitetet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

   Sammanfattning : The central interest of this thesis is the emergence of social  ventures. In this regard, it investigates two types of questions: what regional factors influence the emergence of social  ventures? and what  types of interaction may emerge between the emergence of social  ventures and the demography (entry,  exit  and migration) of commercial ventures in a region? The thesis also aims to adopt a macro-oriented approach to studying the research questions. LÄS MER

3. 2. How to do what you want to do when you can not do what you want : on avoiding and completing partial latin squares

   Författare :Lars-Daniel Öhman; Roland Häggkvist; Tristan M. J. Denley; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Latin squares; constraint satisfaction; schedulling; array; ; MATHEMATICS; MATEMATIK;

   Sammanfattning : .... LÄS MER

4. 3. Phosphorus recovery from sewage sludge fluidized bed gasification processes

   Författare :Thomas Karl Hannl; Marcus Öhman; Matthias Kuba; Nils Skoglund; Flemming Jappe Frandsen; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gasification; sewage sludge; agricultural residues; bed material; fluidized bed; feldspar; ash transformation; potassium; phosphorus; ICP-AES MS; SEM; EDS; XRD; thermodynamic equilibrium modeling; Energy Engineering; Energiteknik;

   Sammanfattning : One of the most sustainable pathways of sewage sludge treatment in recent years has been thermal conversion. The benefits of thermal treatment of sewage sludge are the recovery of energy or valuable chemical products, the destruction of harmful organic compounds, the separation of heavy metals from the P-rich coarse ash fraction, and the decreased and sanitized ash volume. LÄS MER

5. 4. Fluidized bed combustion and gasification for phosphorus recovery by co-conversion of sewage sludge with biomass

   Författare :Thomas Karl Hannl; Marcus Öhman; Matthias Kuba; Nils Skoglund; Mikko Hupa; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Combustion; gasification; sewage sludge; agricultural residues; fluidized bed; ash chemistry; bed material; phosphorus; fuel design; Energy Engineering; Energiteknik;

   Sammanfattning : In recent years, the thermal conversion of sewage sludge has proven its applicability for managing this inevitably generated waste. The viability arises from the concomitant features of recovering energy or valuable compounds, the breakdown of potentially harmful organic compounds, the separation or immobilization of heavy metals, and the formation of volume-reduced, sanitized residues. LÄS MER

7. 5. Diagnostic methods for demonstration of intrathecal synthesis of immunoglobulines within the central nervous system

   Författare :Sten Öhman; Linköpings universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : This thesis is based upon studies of quantitative and qualitative determinations of immunoglobulins A, G, and M (lgA, IgG, and IgM) in cerebrospinal fluid (CSF) and in serum. Inflammatory diseases, such as multiple sclerosis and infections (e.g. LÄS MER