Search for dissertations about: "TEKNIK OCH TEK"

Showing result 1 - 5 of 66 swedish dissertations containing the words TEKNIK OCH TEK.

  2. 1. The Use of Lignin Derivatives to Improve Selected Paper Properties

    Author : Stefan Antonsson; Mikael E. Lindström; Gunnar Henriksson; Mats Johansson; Docent Roland Agnemo Tek. Dr. Harald Brelid; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; kraft lignin; black liquor; cross-flow filtration; lignin derivative; kraftliner; oxidative coupling; laccase; manganese; linseed oil; mechano-sorptive creep; kraftlignin; svartlut; tvärsflödesfiltrering; ligninderivat; kraftliner; oxidativ koppling; lackas; mangan; linolja; mekanosorptivt kryp; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Abstract : Ved består huvudsakligen av tre typer av polymerer, cellulosa, hemicellulosa och lignin. Lignin bildas i naturen genom enzymatiskt initierad oxidativ koppling av tre olika typer av fenylpropan-enheter. Dessa bygger genom olika kol-kol- och kol-syre-bindningar upp en amorf tredimensionell polymer. READ MORE

  4. 2. Pressure sore etiology - highlighted with optical measurements of the blood flow

    Author : Annika Jonsson; Ylva Bäcklund; Maria Lindén; Margareta Lindgren; Bertil Hök; Mälardalens högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Elektronik; Elektronik;

    Abstract : In line with the quality awareness of good prevention of pressure sores and in treatment of those sores already developed, evaluation of antidecubitus mattresses plays an important role. However, there are shortages in the evaluations performed today, since often interface pressure is the only parameter regarded. READ MORE

  5. 3. A Framework for Evaluation and Design of an Integrated Public Transport System

    Author : Carl Henrik Häll; Jan Lundgren; Peter Värbrand; Karin Brundell-Freij; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Demand responsive; public transport; public transportation; planning; optimization; simulation; Anropsstyrd trafik; kollektivtrafik; kollektivtrafikplanering; optimering; simulering; Other technology; Övriga teknikvetenskaper;

    Abstract : Operators of public transport always try to make their service as attractive as possible, to as many persons as possible and in a so cost effective way as possible. One way to make the service more attractive, especially to elderly and disabled, is to offer door-to-door transportation. READ MORE

  6. 4. A Traffic Simulation Modeling Framework for Rural Highways

    Author : Andreas Tapani; Jan Lundgren; Karl-Lennart Bång; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Traffic; Micro; Simulation; Model; Overtaking; Speed; Headway; Rural road; Electronic driving aid; Mathematical model; Road: Traffic theory; Road: Traffic theory; Other technology;

    Abstract : Models based on micro-simulation of traffic flows have proven to be useful tools in the study of various traffic systems. Today, there is a wealth of traffic microsimulation models developed for freeway and urban street networks. The road mileage is however in many countries dominated by rural highways. READ MORE

  7. 5. The price we pay : essays on distribution and transport

    Author : Anders Bondemark; Karin Brundell-Freij; Anders Wretstrand; Henrik Andersson; Statens väg- och transportforskningsinstitut; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis aims to provide knowledge that can be useful when designing or executing transport policy, specifically in relation to the concepts of fairness and distribution. What is considered fair varies among, and within individuals, even within the relatively narrow scope of the transport sector. READ MORE