Search for dissertations about: "energy absorbtion"

Found 3 swedish dissertations containing the words energy absorbtion.

2. 1. Dynamically loaded rock reinforcement

   Author : Anders Ansell; KTH; []
   Keywords : dynamics; vibration; rock reinforcement; stress wave; energy absorbtion; rock bolt; young shortcrete; numerical model; laboratory test; field test; NATURAL SCIENCES; NATURVETENSKAP;

   Abstract : .... READ MORE

4. 2. Foam modeling including pore gas interaction for crashworthiness analysis

   Author : Mats L Landervik; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Foams; Hyperelasto-viscoplasticity; Non-linear dynamics.; Staggered solution; Theory of Porous Media; Constitutive modeling;

   Abstract : Foams are used in vehicles for three main functions: enhancing comfort, e.g.soft foams used in seats cushions, energy absorbtion, e.g. READ MORE

5. 3. Attenuation correction in pulmonary and myocardial single photon emission computed tomography

   Author : Helén Almquist; Lund Klinisk fysiologi; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Klinisk fysiologi; tomography; medical instrumentation; radiology; Clinical physics; downscatter; myocardial perfustion; ventilation-perfusion ratio; radiologi; pulmonary density; pulmonary perfusion; attenuation correction; SPECT; transmission measurement; tomografi; medicinsk instrumentering;

   Abstract : The objective was to develop and validate methods for single photon emission computed tomography, SPECT, allowing quantitative physiological and diagnostic studies of lung and heart. A method for correction of variable attenuation in SPECT, based on transmission measurements before administration of an isotope to the subject, was developed and evaluated. READ MORE