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Visar resultat 1 - 5 av 241 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Position Sensitive Detectors : Device Technology and Applications in Spectroscopy

   Författare :Henrik Andersson; Hans-Erik Nilsson; Göran Thungström; Jan Linnros; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Position sensitive detectors; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

   Sammanfattning : This thesis deals with the development, processing and characterization of position sensitive detectors and, in addition, to the development of compact and cost effective spectrometers. Position sensitive detectors are used to measure, with great accuracy and speed, the position of a light spot incident on the surface. LÄS MER

3. 2. Expert system for hole engineering with special reference to position accuracy when drilling

   Författare :Jacek K Kaminski; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; expert system; machining costs; feed; cutting speed; drilling data; position accuracy; twisted drill; drilling; hole machining sequances;

   Sammanfattning : .... LÄS MER

4. 3. Position Estimation and Tracking in Colloidal Particle Microscopy

   Författare :Mats Kvarnström; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; censored regression; colloidal chemistry; depth estimation; diffusion coefficient; nonparametric function estimation; position estimation; rotational symmetry; tracking; template matching; video microscopy; rotational symmetry;

   Sammanfattning : This thesis presents methods for estimating the locations (including depth) of spherical colloidal particles in images recorded in video microscopy. Understanding the behavior of colloidal interactions and diffusion is of crucial importance in a vast number of areas. LÄS MER

5. 4. CT colonography. Technique, diagnostic accuracy and patient acceptance

   Författare :Maria H Svensson (Reutersköld); Göteborgs universitet; []
   Nyckelord :Colon; Rectum; Computed tomography; Three-dimensional imaging; Colorectal neoplasms; Colonic polyps; Colonoscopy; Acceptance testing; Incidental findings; Diagnostic accuracy;

   Sammanfattning : The aim was to evaluate diagnostic potential, technical performance, and patient acceptance of CT colonography when used for detection of colorectal polyps and cancer in symptomatic patients with a high risk of colorectal neoplasia.Methods: After bowel preparation, 111 symptomatic patients underwent CT colonography followed by conventional colonoscopy. LÄS MER

7. 5. Psychophysiological reactions to experimental stress : relations to pain sensitivity, position sense and stress perception

   Författare :Marina Heiden; Eugene Lyskov; Tohr Nilsson; Ulf Lundberg; Umeå universitet; []
   Nyckelord :public health; autonomic activity; cognitive-behavioral training; muscle oxygenation; physical activity; position sense; pressure-pain thresholds; sick leave; stress; Occupational and Environmental Medicine; arbets- och miljömedicin;

   Sammanfattning : Stress and monotonous work contribute substantially to the development of chronic musculoskeletal disorders. Yet, the pathophysiological mechanisms underlying the process, particularly the involvement of autonomic regulation, remain unclear. LÄS MER