Search for dissertations about: "parts"

Showing result 1 - 5 of 4524 swedish dissertations containing the word parts.

2. 1. Reversible architecture : Reuse of timber building parts in circular design

   Author : Margherita Lisco; Avdelningen för Byggproduktion; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reuse; circular design; building parts; design for disassembly; design for adaptability; timber;

   Abstract : The construction industry has a great impact on the environment but there is a great potential for improvements. In the era of climate change, sustainable construction methods and ecological solutions are required to improve energyefficiency, and to decrease the environmental impact of housing development. READ MORE

4. 2. High order summation-by-parts methods in time and space

   Author : Tomas Lundquist; Jan Nordström; Peter Eliasson; David A. Kopriva; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; summation-by-parts; time integration; stiff problems; weak initial conditions; high order methods; simultaneous-approximation-term; finite difference; discontinuous Galerkin; spectral methods; conservation; energy stability; complex geometries; non-conforming grid interfaces; interpolation;

   Abstract : This thesis develops the methodology for solving initial boundary value problems with the use of summation-by-parts discretizations. The combination of high orders of accuracy and a systematic approach to construct provably stable boundary and interface procedures makes this methodology especially suitable for scientific computations with high demands on efficiency and robustness. READ MORE

5. 3. Applications of summation-by-parts operators

   Author : Oskar Ålund; Jan Nordström; Andrew Ross Winters; Murtazo Nazarov; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Numerical solvers of initial boundary value problems will exhibit instabilities and loss of accuracy unless carefully designed. The key property that leads to convergence is stability, which this thesis primarily deals with. READ MORE

6. 4. Improved high velocity cold copaction processing : polymer powder to high performance parts

   Author : Bruska Azhdar; Sture Persson; Cornell Nicolescu; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; high-velocity compaction; powder polymers; polyamide-11; relaxation assist; compactibility; relative green density; morphology; pull-out; springback; Polymer chemistry; Polymerkemi;

   Abstract : A uniaxial High-Velocity Compaction (HVC) process for polymer powder using a cylindrical, hardened steel die and a new technique with relaxation assist was tested with a focus on the compactibility characteristics and surface morphology of the compacted materials using various heights of relaxation assist device with different compacting profiles. Relaxation assist device was presented as a new technique to reduce springback, pull-out phenomenon and to improve the compaction process. READ MORE

7. 5. Seeing the parts, understanding the whole : A technology education perspective on teaching and learning in processes of analysing and designing programmed technological solutions

   Author : Anne-Marie Cederqvist; Göteborgs universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; technology education; programmin; programmed technological solutions; programming materials; phenomenography; LeaDS - Learning in a Digitalised Society; LeaDS - Lärande i ett digitalt samhälle; technology education; programming; programmed technological solutions; programming materials; phenomenography;

   Abstract : Analysing and designing Programmed Technological Solutions (PTS) has been introduced as a part of technology education in an effort to bring elements of programming into the curriculum for compulsory school, in order to develop pupils’ understanding of how PTS work and are controlled by programming. However, what an appropriate understanding entails at this level remains to be articulated, particularly how this understanding looks from a pupil’s perspective. READ MORE