Sökning: "Per Jönsson"

Visar resultat 1 - 5 av 37 avhandlingar innehållade orden Per Jönsson.

  1. 1. The Potential and Challenges of the Use of Dynamic Software in Upper Secondary Mathematics : Students’ and Teachers’ Work with Integrals in GeoGebra Based Environments

    Författare :Sanela Mehanovic; Per Jönsson; Morten Blomhøj; Per-Eskil Persson; Morten Misfeldt; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

    Sammanfattning : An introduction of computer software into mathematics classrooms makes the didactical situation more complex compared with previous learning environments (Blomhøj, 2005). A technological tool becoming a mathematic work tool in the hands of the students is a process that has turned up unexpectedly complex (Artigue, 2002). LÄS MER

  3. 2. Impact Analysis : Organisational Views and Support Techniques

    Författare :Per Jönsson; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; impact analysis; roles; organisational levels; requirements engineering; imputation;

    Sammanfattning : Change is unavoidable in software development. During the entire lifecycle of a product, from concept to retirement, the environment changes; the needs of customers or the market change and grow, and with them the requirements on the system being developed. LÄS MER

  4. 3. Exploring Process Aspects of Change Impact Analysis

    Författare :Per Jönsson; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; change impact analysis; process support; change control process; software evolution;

    Sammanfattning : Change is inevitable in software development. During the entire lifecycle of a software system, from conception to retirement, things happen that require the system to be changed: the hardware and software environment changes, customer needs evolve, flaws are found, and so on. LÄS MER

  5. 4. Modelling and laboratory investigations on freight wagon link suspensions with respect to vehicle-track dynamic interaction

    Författare :Per-Anders Jönsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; railway; freight wagon; running gear; link suspension; laboratory test; ; Other engineering mechanics; Övrig teknisk mekanik;

    Sammanfattning : The link suspension is the most prevailing suspension system for freight wagons in central and western Europe. The system design is simple and has existed for more than 100 years. However, still its characteristics are not fully understood. LÄS MER

  7. 5. Hydrogen bond studies : 76 : diffraction studies of some hydrogen-bonded structures

    Författare :Per-Gunnar Jönsson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER