Essays about: "pencil"

Showing result 16 - 20 of 37 essays containing the word pencil.

1. 16. Validation of the Eclipse(TM) Treatment Planning System for Synchrotron Microbeam Radiotherapy

   University essay from Lunds universitet/Medicinsk strålningsfysik, Lund; Lunds universitet/Sjukhusfysikerutbildningen

   Author : Madeleine Holm; [2016]
   Keywords : Medicine and Health Sciences;

   Abstract : This work presents the first data from a calculation engine for synchrotron Microbeam Radiation Therapy (MRT) implemented in the EclipseTM Treatment Planning System from Varian Medical Services. The calculation engine constitutes a simple pencil beam algorithm estimating ‘peak’ dose and of Monte Carlo simulated Peak Valley Dose Ratios (PVDRs) that are used to obtain ‘valley’ dose. READ MORE

3. 17. Skriv ihop Göteborg! : en gestaltning av en pop-up park på Avenyn i Göteborg som uppmuntrar till diskussion om en aktuell samhällsfråga

   University essay from SLU/Dept. of Urban and Rural Development

   Author : Dafni Sarakinis; Emma Uvenberg; [2016]
   Keywords : pop-up park; tillfällig arkitektur; arkitektens roll; samhällsansvar; integration; offentlig miljö; Göteborg;

   Abstract : Det finns idag en osäkerhet inom politik, ekonomi såväl som i fråga om klimatförändringar vilket har förändrat människors syn på världen och på sin egen roll i den. Arkitektens roll är viktig i mötet med dessa utmaningar. READ MORE

4. 18. Investigation Of Scalloping Effects Of Radial Turbines With Computational Fluid Dynamics

   University essay from Lunds universitet/Institutionen för energivetenskaper

   Author : Anders Jacobsson; [2016]
   Keywords : Radial turbine; scallop; inertia; turbocharger; STAR-CCM ; CFD; Technology and Engineering;

   Abstract : Turbochargers should both have high efficiency and rapid engine response. By removing material from the rotating parts in the turbocharger, decreases the inertia. Most suited is the turbine in the turbocharger, which has high density because of nickel-based alloys. READ MORE

5. 19. Development and validation of a scanned proton beam model for dose distribution verification using Monte Carlo

   University essay from Stockholms universitet/Fysikum

   Author : Erik Almhagen; [2015]
   Keywords : ;

   Abstract : Background and purpose: Although proton therapy is becoming increasingly common as a radiotherapy modality, facilities offering proton therapy are still scarce in comparison to photon therapy. Sweden's new proton therapy facility, Skandionkliniken, is scheduled to being operation during August 2015, employing the pencil beam scanning technique. READ MORE

6. 20. Parameter selection and derivative conditions for B-splines applied to gas turbine blade modeling

   University essay from Lunds universitet/Matematik LTH

   Author : Andreas Söderlund; [2015]
   Keywords : B-splines; spline interpolation; parameter selection; knot selection; Bezier curves; NURBS; derivative conditions; geometric continuity; turbine blade; turbine; compressor; compressor blade; interpolation; Mathematics and Statistics;

   Abstract : In gas turbine blade modeling a stable but yet flexible method of describing the blade shape is crucial. Polynomials and B ́ezier curves have previously been used and in this paper B-splines are employed instead. READ MORE