Sökning: "B Pettersson"

Visar resultat 1 - 5 av 20 avhandlingar innehållade orden B Pettersson.

1. 1. The inclined double notch shear test for determination of interlaminar shear properties of composite laminates

   Författare :Kaj B. Pettersson; Jonas Neumeister; Ryszard Pyrz; KTH; []
   Nyckelord :compisite; laminate; interlaminar; shear; test method; experimental comparison; strength; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : .... LÄS MER

3. 2. tRNA Gene Structures in Bacteria

   Författare :B. M. Fredrik Pettersson; Leif A. Kirsebom; Anders Byström; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; Cell- och molekylärbiologi; mikrobiologi; Microbiology;

   Sammanfattning : In bacteria, tRNA molecules are produced as precursors with additional nucleotides both upstream and downstream of the tRNA coding sequence. To generate a mature tRNA, the endoribonuclease RNase P removes the upstream sequence, while a number of enzymes can remove the downstream sequence. LÄS MER

4. 3. Chewing gum and human hair as retrospective dosimeters

   Författare :Axel Israelsson; Håkan B.L. Pettersson; Eva Lund; Håkan Gustafsson; Mats Eriksson; Bastian Breustedt; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Sammanfattning : Retrospective dosimeters are sometimes needed after radiological/nuclear (RN) exposures to determine the doses to individuals. Conventional dosimeters may not be at hand or may not be applicable calling for alternative materials. LÄS MER

5. 4. Efficient Methods to Calculate Mutual Coupling between Generic Antennas on Large Platforms

   Författare :Johan Malmström; B. Lars G. Jonsson; Lars Pettersson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : This thesis presents research on methods for calculating the mutual coupling between antennas. The mutual coupling between antennas is a measure of the amount of energy transmitted from one antenna that is received by another, and is a key parameter when installing antennas on platforms, such as aircraft. LÄS MER

7. 5. Radon in natural waters : Analytical Methods; Correlation to Environmental Parameters; Radiation Dose Estimation; and GIS Applications

   Författare :Isam M. Musa Salih; Eva Lund; Håkan B.L. Pettersson; Christer Samuelsson; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radon analysis; radiation effects; Water chemistry; Water pollution; radioactive analysis; Radiological physics; Radiofysik;

   Sammanfattning : Investigations of radon in natural water and its relation to physical and chemical parameters are outlined in this thesis. In particular, a method for measuring 222Rn in water at low concentrations (~20 mBq. LÄS MER