Sökning: "digital teknik matematik"

Visar resultat 1 - 5 av 26 avhandlingar innehållade orden digital teknik matematik.

1. 1. Representationer, visualisering och resonemang i geometri : Praktiknära studier i digitala lärmiljöer

   Författare :Peter Markkanen; Per Nilsson; Andreas Eckert; Constanta Olteanu; Morten Blomhøj; Örebro universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Geometry; visualization; representations; reasoning; digital tools; design research;

   Sammanfattning : The aim of this dissertation was to gain a deeper understanding of how teaching in digital environments can be designed to give students opportunities to develop knowledge in two- and three-dimensional geometry. The dissertation consists of two sub-studies, the first using an ethnographic approach in which the researcher followed a teacher's teaching in a digital environment, in a Grade 9 class for a period of five weeks. LÄS MER

3. 2. "Tekniken utan en lärare är ingenting" : En studie om användande av teknik i geometriundervisning

   Författare :Peter Markkanen; Constanta Olteanu; Per Nilsson; Per-Eskil Persson; Linnéuniversitetet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Etnografi; Geometri; Interaktiv skrivtavla; Matematik; Teknik; Mathematical Education; Matematikdidaktik;

   Sammanfattning : Målet med denna avhandling är att bidra med kunskap om hur digital teknik kan bidra till att utveckla matematikundervisning. I studien riktades intresset mot undervisning i tredimensionell geometri som skedde med stöd av interaktiva skrivtavlor. LÄS MER

4. 3. Image Reconstruction and Optical Flow Estimation on Image Sequences with Differently Exposed Frames

   Författare :Tomas Bengtsson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multiple camera settings; human visual system; super-resolution; optical flow; high dynamic range; digital camera system; image reconstruction; motion analysis; inverse problem;

   Sammanfattning : The main objective for digital image- and video camera systems is to reproduce a real-world scene in such a way that a high visual quality is obtained. A crucial aspect in this regard is, naturally, the quality of the hardware components of the camera device. There are, however, always some undesired limitations imposed by the sensor of the camera. LÄS MER

5. 4. Digital Beamforming Focal Plane Arrays for Radio Astronomy and Space-Borne Passive Remote Sensing

   Författare :Oleg Iupikov; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; beamforming; spaceborne radiometers; radio telescopes; phased array feeds; reflector antenna feeds; feed-reflector interaction;

   Sammanfattning : Dense Phased Array Feeds (PAFs) for reflector antennas have numerous advantages over traditional cluster feeds of horns in a one-horn-per-beam configuration, especially in RF-imaging applications which require multiple simultaneously formed and closely overlapping beams. However, the accurate analysis and design of such PAF systems represents a challenging problem, both from an EM-modeling and beamforming optimization point of view. LÄS MER

7. 5. Methods for Direct Optimal Control of Multibody Systems

   Författare :Staffan C Björkenstam; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; discrete mechanics; robotics; Optimal control; motion planning; multibody dynamics; digital human modeling;

   Sammanfattning : In this thesis we present practical tools and techniques to numerically solve optimal control problems involving multibody systems. The driving application for the thesis has been developing motion planning tools for industrial robots and digital humans. LÄS MER