Sökning: "mathematical model"

Visar resultat 6 - 10 av 1153 avhandlingar innehållade orden mathematical model.

1. 6. Model Adaptivity in Elasticity

   Författare :David Heintz; Göteborgs universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; finite element method; dimension reduction; a posteriori error; model error; model adaptivity; model error;

   Sammanfattning : We consider model adaptivity in elasticity for dimensionally reduced forms, and shall treat different conceptual approaches. The basic idea, however, is to adaptively refine, not only the computational mesh, but also the underlying mathematical formulation. LÄS MER

3. 7. Optimal Stopping and Model Robustness in Mathematical Finance

   Författare :Henrik Wanntorp; Johan Tysk; Svante Janson; Boualem Djehiche; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Optimal stopping; model robustness; American options; free boundary problems; hedging; option pricing; Mathematical statistics; Matematisk statistik;

   Sammanfattning : Optimal stopping and mathematical finance are intimately connected since the value of an American option is given as the solution to an optimal stopping problem. Such a problem can be viewed as a game in which we are trying to maximize an expected reward. LÄS MER

4. 8. Mathematical and Physical Simulations of BOF Converters

   Författare :Xiaobin Zhou; Mikael Ersson; Pär Jönsson; Hans-Jürgen Odenthal; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; BOF; physical model; mathematical model; mixing time; kinetic enregy; Materials Science and Engineering; Teknisk materialvetenskap;

   Sammanfattning : The purpose of this study is to develop mathematical models to explore the mixing and its related phenomena in converter bath. Specifically, first, a mathematical model of a physical model converter, which was scaled down to 1/6th of a 30 t vessel, was developed in this study. LÄS MER

5. 9. Promoting mathematical dialogue : students’ and teachers’ listening, questioning and participation

   Författare :Marie Sjöblom; Clas Olander; Paola Valero; Despina Potari; Malmö universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Listening; mathematical dialogue; mathematics education; noticing; participation; professional development; questioning;

   Sammanfattning : In Swedish mathematics classrooms, students have different opportunities to participate in mathematical dialogue, and therefore also different opportunities to learn. This is a problem not only for students, but also for teachers, school developers, and researchers. LÄS MER

7. 10. On the causes and effects of specialization : A mathematical approach

   Författare :Micael Ehn; Kimmo Eriksson; Johan Lind; Mälardalens högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Specialization; Division of labor; matematical model; social stratification; Applied mathematics; Tillämpad matematik; Mathematics Applied Mathematics; Matematik tillämpad matematik;

   Sammanfattning : Division of labor and division of knowledge are so important andcommon in society today that it is almost impossible to imagine asociety where everyone knows the same things and perform the sametasks. This would be a society where everyone grows, or gathers, andprepares their own food, makes their own tools, builds their ownhouse, and so on. LÄS MER