Sökning: "core assumptions"

Visar resultat 6 - 10 av 76 avhandlingar innehållade orden core assumptions.

1. 6. On determining lost core viability in high-pressure die casting using Computational Continuum Mechanics

   Författare :Sebastian Kohlstädt; Pär Jönsson; Julio Hernandez; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high-pressure die casting; lost salt cores; computational continuum mechanics; two-phase compressible flow; OpenFOAM; CFD; fluid-structure interaction; volume-of-fluid method;

   Sammanfattning : The subject of this thesis work is to investigate whether Computational ContinuumMechanics (CCM) can serve as a valuable tool for the casting engineerto determine a priori whether a housing concept with inlying geometries thatso far only exists in Computer Aided Design (CAD) will have the desired coolingperformance and will be manufacturable with an acceptable number ofrejects.As of spring 2019, no application in serial production of lost cores, i. LÄS MER

3. 7. Researching the Use of the Internet : A Beginner's Guide

   Författare :Håkan Selg; Iordanis Kavathatzopoulos; Charles Melvin Ess; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Information and communication technologies ICT ; Internet studies; multidisciplinarity; research programme; methodological framework; scientific mapping; Computer Science with specialization in Human-Computer Interaction; Datavetenskap med inriktning mot människa-datorinteraktion;

   Sammanfattning : Information and communication technologies (ICT) have experienced a technological convergence. Laptops, tablets and smartphones integrate previously distinct artefacts and communication protocols within information systems, personal computers and telephony. LÄS MER

4. 8. Barycentric Markov processes and stability of stochastic integrators

   Författare :Philip Kennerberg; Matematisk statistik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; geometric probability; dirichlet processes; Markov processes; stochastic integration; interacting particle systems;

   Sammanfattning : This thesis consists of four papers that broadly concerns two dierent topics. The rsttopic is so-called barycentric Markov processes. By a barycentric Markov process wemean a process that consists of a point/particle system evolving in (discrete) time,whose evolution depends in some way on the mean value of the current points in thesystem. LÄS MER

5. 9. Complex methods of inquiry: structuring uncertainty

   Författare :PETER BEDNAR; Institutionen för informatik; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; information system; Contextual Analysis; Contextual Dependencies; Systems Approaches; Systems Thinking; Organizational change; Complex adaptive systems; Uncertainty management; Organizational Emergence; Change Management; Organizational Learning; Human Activity Systems;

   Sammanfattning : Organizational problem spaces can be viewed as complex, uncertain and ambiguous. They can also be understood as open problem spaces. As such, any engagement with them, and any effort to intervene in order to pursue desirable change, cannot be assumed to be just a matter of ‘complicatedness’. LÄS MER

7. 10. Development of an Improved Thermal-Hydraulic Modeling of the Jules Horowitz Reactor

   Författare :Reijo Pegonen; Henryk Anglart; Yann Bartosiewicz; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Jules Horowitz Reactor; CATHARE2; STAR-CCM ; FLICA4; Material Testing Reactor; Computational Fluid Dynamics; System code; Reactor modeling;

   Sammanfattning : The newest European high performance material testing reactor, the Jules Horowitz Reactor, is under construction at CEA Cadarache research center in France. The reactor will support existing and future nuclear reactor technologies, with the first criticality expected at the end of this decade. LÄS MER