Sökning: "fixed expressions"

Visar resultat 11 - 15 av 38 avhandlingar innehållade orden fixed expressions.

  1. 11. Algebraic Methods for Modeling and Design in Control

    Författare :Mats Jirstrand; Torkel Glad; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Computer algebra or symbolic computation has been recognized as an important tool in many engineering disciplines and continues to find new fields of application. In this thesis we investigate a number of constructive methods implemented as parts of computer algebra packages and utilize them both theoretically and practically in connection with problems in modeling and design of control systems. LÄS MER

  3. 12. The Japanese Imperative

    Författare :Axel Svahn; Allmän språkvetenskap; []
    Nyckelord :HUMANIORA; HUMANITIES; imperative; directive; semantics; pragmatics; grammaticalization; honorification; benefactivity; directive strategy; directive system; Japanese; imperativ; japanska; semantik; pragmatik; språkvetenskap; lingvistik; grammatikalisering; satstyper;

    Sammanfattning : The present thesis explores Japanese imperative constructions from a general linguistic perspective, as well as examining the imperative as a cross-linguistic object of study. On the definitional side, a terminological apparatus for the description and analysis of imperatives and directives is presented. LÄS MER

  4. 13. On the Performance Analysis of Cooperative Communications with Practical Constraints

    Författare :Quang Trung Duong; Blekinge Tekniska Högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : With the rapid development of multimedia services, wireless communication engineers may face a major challenge to meet the demand of higher data-rate communication over error-prone mobile radio channels. As a promising solution, the concept of cooperative communication, where a so-called relay node is formed to assist the direct link, has recently been applied to alleviate the severe pathloss and shadowing effects in wireless systems. LÄS MER

  5. 14. Combinatorics and topology related to involutions in Coxeter groups

    Författare :Mikael Hansson; Axel Hultman; Jan Snellman; Nathan Reading; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This dissertation consists of three papers in combinatorial Coxeter group theory.A Coxeter group is a group W generated by a set S, where all relations can be derived from the relations s2 = e for all s ? S, and (ss′)m(s,s′) = e for some pairs of generators s ≠ s′ in S, where e ? W is the identity element and m(s, s′) is an integer satisfying that m(s, s′) = m(s′, s) ≥ 2. LÄS MER

  7. 15. Constructive Methods for Inequality Constraints in Control

    Författare :Mats Jirstrand; Torkel Glad; Per-Olof Gutaman; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In practical control problems there are always constraints on inputs and system variables. The constraints are often described by inequalities and there is a need for methods that take them into account. This thesis consists of three parts. LÄS MER