Now showing items 1-20 of 543

    • Unobstructedness and dimension of families of Gorenstein algebras 

      Kleppe, Jan Oddvar (Collectanea Mathematica; 58(2), Journal article; Peer reviewed, 2007)
      The goal of this paper is to develop tools to study maximal families of Gorenstein quotients A of a polynomial ring R. We prove a very general Theorem on deformations of the homogeneous coordinate ring of a scheme Proj A ...
    • Digitalized story making in the classroom : a social semiotic perspective on gender, multimodality and learning 

      Skaar, Håvard (Seminar.net : Media, technology and lifelong learning;3 (1), Journal article; Peer reviewed, 2007)
      The article takes the case of pupils in a fifth-year primary school class (10-11 years old) who use text and pictures in their creative writing on the classroom computers. The study confirms what the research ...
    • Unobstructedness and dimension of families of codimension 3 ACM algebras 

      Kleppe, Jan Oddvar; Miro-Roig, Rosa Maria (Contemporary Mathematics;448, Journal article; Peer reviewed, 2007)
      The goal of this paper is to study irreducible families of codimension 3, Cohen-Macaulay quotients A of a polynomial ring R=k[x_0,x_1,...,x_n]; mainly, we study families of graded Cohen-Macaulay quotients A of codimension ...
    • Families of Artinian and one-dimensional algebras 

      Kleppe, Jan Oddvar (Journal of Algebra;311, Journal article; Peer reviewed, 2007)
      The purpose of this paper is to study families of Artinian or one dimensional quotients of a polynomial ring R with a special look to level algebras. Let GradAlg^H(R) be the scheme parametrizing graded quotients of R with ...
    • Solution of the time-dependent Schrödinger equation using uniform complex scaling 

      Bengtsson, Jakob; Lindroth, Eva; Selstø, Sølve (Journal article; Journal article; Peer reviewed, 2008)
      The formalism of complex rotation of the radial coordinate is studied in the context of time-dependent systems. The applicability of this method is discussed and illustrated with numerical examples involving atoms exposed ...
    • If I had a rich picture… : insights into the use of “soft” methodological tools to support the development of interprofessional education 

      Fougner, Marit; Habib, Laurence (Journal of Interprofessional Care;22 (5), Journal article; Peer reviewed, 2008)
      This paper describes a methodological experiment that aimed to test a small number of tools borrowed from Soft Systems Methodology. Those tools were intended to support action research for a project in interprofessional ...
    • Solution of the Dirac equation for hydrogenlike systems exposed to intense electromagnetic pulses 

      Selstø, Sølve; Bengtsson, Jakob; Lindroth, Eva (Journal article; Peer reviewed, 2009)
      The time-dependent Dirac equation is solved numerically and compared to the corresponding prediction of the nonrelativistic Schrödinger equation for hydrogenlike systems exposed to intense laser pulses. It is found that ...
    • Ideals generated by submaximal minors 

      Kleppe, Jan Oddvar; Miro-Roig, Rosa Maria (Algebra & Number Theory;3 (4), Journal article; Peer reviewed, 2009)
      The goal of this paper is to study irreducible families W(b;a) of codimension 4, arithmetically Gorenstein schemes X of P^n defined by the submaximal minors of a t x t matrix A whose entries are homogeneous forms of degree ...
    • The structure behind it all 

      Lindroth, Eva; Argenti, Luca; Bengtsson, Jakob; Ferro, Fabrizio; Genkin, Michael; Selstø, Sølve (Journal article; Peer reviewed; Journal article, 2009)
      The talk discussed collisions where the structure of the systems involved plays a decisive role for the outcome of the event. For many types of charge changing processes the presence of resonant states can change the ...
    • Branded selves : how children in Norway relate to marketing on a social network site 

      Skaar, Håvard (Journal of children and media;3 (3), Journal article; Peer reviewed, 2009-07-22)
      Theories of branding and self presentation inform an ethnographic study of how a group of classmates aged 11–12 construct identities by use of the brands and branded resources made available to them on the social network ...
    • Towards calibration-free geo-localization of stationary outdoor webcams 

      Sandnes, Frode Eika (Norsk Informatikkonferanse; 2010, Chapter; Peer reviewed, 2010)
      This study proposes two strategies for determining the approximate geographical location of outdoor webcams based on time-series comprising regularly sampled images. The strategies require an accurate account of universal ...
    • Water Quality Monitoring with Ubiquitous Computing 

      Huang, Yo-Ping; Chou, Change-Tse; Jau, Jung-Shian; Sandnes, Frode Eika (Chapter; Peer reviewed, 2010)
      Traditionally, data collected from water quality monitoring systems are typically stored in closed repositories that are not shared with the public. Due to the cost and environmental limitations traditional water quality ...
    • Web-Based Automatic Feedback on Assignments in Statistics : How Can it Help Students Learn Statistics and Universities Reduce Costs? 

      Kvadsheim, Reidar; Mehlen, Mari; Kittang, Harald Øyen (International Journal of Engineering Education;26 (3), Journal article; Peer reviewed, 2010)
      A non-experimental study in 2005 suggested that immediate, automatic feedback on assignments helped to increase study motivation as well as pass rate among engineering students attending an introductory course in statistics ...
    • User Interface Design for Public Kiosks : an Evaluation of the Taiwan High Speed Rail Ticket Vending Machine 

      Sandnes, Frode Eika; Jian, Hua-Li; Huang, Yo-Ping; Huang, Yueh-Min (Journal of information science and engineering;26 (1), Journal article; Peer reviewed, 2010)
      Low hardware costs and high staffing costs have resulted in an increase in public information and transaction kiosks. Ticket vending machines are one important subset of such kiosks. These machines must offer efficient ...
    • On the usefulness of Aaa-links for controlling text size on web pages : preliminary results 

      Sandnes, Frode Eika (The proceedings of Unitech2010 : International Conference on Universal Technologies;, Chapter; Peer reviewed, 2010)
      Aaa-links, also known as triple-a links, have over the last few years become commonplace on the web. In a move to become more universally accessible organizations have introduced Aaa-links to help users with reduced ...
    • Enhancing creativity and play through accessible projector-based interactive PC-control touch technology 

      Begnum, Miriam Eileen Nes; Finstadsveen, Johan; Begnum, Kyrre (The proceedings of Unitech : International Conference on Universal Technologies;2010, Chapter; Peer reviewed, 2010)
      Standard computer peripherals are often challenging to use for mobility impaired, and in particular controlling computer mouse movements efficiently and without risking strain injuries. Projected touch screen technology ...
    • A Simple Content-based Strategy for Estimating the Geographical Location of a Webcam 

      Sandnes, Frode Eika (Lecture Notes in Computer Science = Lecture notes in artificial intelligence;6297, Journal article; Peer reviewed, 2010)
      This study proposes a strategy for determining the approximate geographical location of a webcam based on a sequence of images taken at regular intervals. For a time-stamped image sequence spanning 24 hours the approximate ...
    • Bayesian lithology/fluid inversion - comparison of two algorithms 

      Ulvmoen, Marit; Hammer, Hugo Lewi (Computational Geosciences;14(2), Journal article; Peer reviewed, 2010)
      Algorithms for inversion of seismic prestack AVO data into lithology-fluid classes in a vertical profile are evaluated. The inversion is defined in a Bayesian setting where the prior model for the lithology-fluid classes ...
    • Fuzzy Environment Mapping for Robot Navigation Based on Grid Computing 

      Kao, Li-Jen; Huang, Yo-Ping; Sandnes, Frode Eika; Hsiao, Mann-Jung (Chapter; Peer reviewed, 2010)
      In order to navigate autonomously, a mobile robot needs to build an environment map where the robot is navigating. Currently, the sensors are mounted on the robot to detect if the obstacles exist and then the map immediate ...
    • Prosjekt Ymer : grafikkprosessering på sky 

      Granstad, Linda; Begnum, Kyrre (Norsk Informatikkonferanse;2010, Chapter; Peer reviewed, 2010)
      Skyteknologi er en teknologi som tilbyr et spekter av nye tjenester som er lite utprøvd på mange felt. Et av disse områdene er bruk av sky i forbindelse med grafikkprosessering. Vil det være mulig å få en renderfarm til ...