Sökning: "Lars Ohlsson"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Lars Ohlsson.

1. 1. Abrasive water jet cutting : an experimental and theoretical investigation

   Författare :Lars Ohlsson; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling;

   Sammanfattning : .... LÄS MER

3. 2. Compact and Efficient Millimetre-Wave Circuits for Wideband Applications

   Författare :Lars Ohlsson; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; resonant-tunnelling diode; millimetre-wave spectrum; integrated transmitter; energy-efficiency; compact circuit; dielectric resonator antenna; transistor; wavelet generator; wideband.;

   Sammanfattning : Radio systems, along with the ever increasing processing power provided by computer technology, have altered many aspects of our society over the last century. Various gadgets and integrated electronics are found everywhere nowadays; many of these were science-fiction only a few decades ago. LÄS MER

4. 3. Lokal förvaltning i Sovjetunionen : sovjeterna: vision och verklighet

   Författare :Lars Ohlsson; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Political science; Statsvetenskap;

   Sammanfattning : .... LÄS MER

5. 4. The theory and practice of abrasive water jet cutting

   Författare :Lars Ohlsson; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling;

   Sammanfattning : Abrasive Water Jet (AWJ) has grown to be an important industrial tool during the last decade. A great deal of effort has been put into describing the process. However, many of the most fundamental aspects of the process are still not fully understood, or described, and many questions have been left unanswered. LÄS MER

7. 5. Studies of Mesenchymal Progenitor Cells and Tumour Growth, Integrins and Matrix Metalloproteinases

   Författare :Lars Bryngelsson Ohlsson; Immunologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; Tumour inhibition; cancer; onkologi; cancerology; Cytologi; oncology; Cytology; Biologi; Biology; Medicin människa och djur ; Medicine human and vertebrates ; Integrin matrix metalloproteinase interaction; Immunologi; serologi; transplantation; Proteins; enzymology; Proteiner; enzymologi; serology; Mesenchumal progenitor cells;

   Sammanfattning : In this thesis we characterize the effect of mesenchymal progenitor cells (MPCs) on tumour growth, and show that MPCs can have inhibitory effects on tumour development. We developed a method to subcutaneously transplant tumour cells, cultured in vitro in a pre-formed gelatin matrix, that made it possible to study the early phases of tumour development. LÄS MER