Search for dissertations about: "contact theories"

Showing result 1 - 5 of 48 swedish dissertations containing the words contact theories.

2. 1. Presence through actions : theories, concepts, and implementations

   Author : Muhammad Sikandar Lal Khan; Shafiq ur Réhman; Haibo Li; Jiebo Luo; Umeå universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Presence; Immersion; Computer mediated communication; Strong concept; Phenomenology; Philosophy; Biologically inspired system; Neck robot; Head pose estimation; Embodied interaction; Virtual reality headset; Social presence; Spatial presence; Face reconstruction retrieval; Telepresence system; Quality of interaction; Embodied telepresence system; Mona-Lisa gaze effect; eye-contact; design; design; Computer Science; datalogi; Computer Systems; datorteknik; datoriserad bildanalys; Computerized Image Analysis;

   Abstract : During face-to-face meetings, humans use multimodal information, including verbal information, visual information, body language, facial expressions, and other non-verbal gestures. In contrast, during computer-mediated-communication (CMC), humans rely either on mono-modal information such as text-only, voice-only, or video-only or on bi-modal information by using audiovisual modalities such as video teleconferencing. READ MORE

4. 2. User Consideration in Early Stages of Product Development : Theories and Methods

   Author : Jenny Janhager; Margareta Norell Bergendahl; MariAnne Karlsson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering design; Man-machine interaction; product development method; scenario technique; technical process; user; Konstruktionsteknik; Construction engineering; Konstruktionsteknik;

   Abstract : Traditional design theories have focused on technical functions and more or less disregard a product’s user involvement. The existing methods of ergonomic designare mostly intended for analysis activities. There is a need for new dynamic methods that focus on user-product interactions. READ MORE

5. 3. Rough surfaces in contact : artificial intelligence and boundary lubrication

   Author : Marco Rapetto; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement;

   Abstract : Interacting surfaces are found in mechanical systems and components. Since engineered surfaces are not perfectly smooth, only a fraction of the nominal surface area is actually in contact. This fraction is denoted as the real area of contact, Ar, and is formed by the sum of the contact spots between the two touching surfaces. READ MORE

6. 4. Twisting and Gluing : On Topological Field Theories, Sigma Models and Vertex Algebras

   Author : Johan Källén; Maxim Zabzine; Mathias Blau; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Topological field theory; Chern-Simons theory; Contact geometry; Sigma models; Poisson vertex algebras; Vertex algebras; String theory; Theoretical Physics; Teoretisk fysik;

   Abstract : This thesis consists of two parts, which can be read separately. In the first part we study aspects of topological field theories. We show how to topologically twist three-dimensional N=2 supersymmetric Chern-Simons theory using a contact structure on the underlying manifold. READ MORE

7. 5. Twisting it up the Quantum Way : On Matrix Models, q-deformations and Supersymmetric Gauge Theories

   Author : Rebecca Lodin; Maxim Zabzine; Taro Kimura; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Matrix models; Virasoro constraints; Virasoro algebra; W algebra; q-deformations; Supersymmetric gauge theories; Theoretical Physics; Teoretisk fysik;

   Abstract : The mathematical framework which quantum field theory constitutes has been very successful in describing nature. As an extension of such a framework, the idea of supersymmetry was introduced. This greatly simplified the mathematical description of the theories, making them more tractable. READ MORE