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Visar resultat 1 - 5 av 118 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Dynamic Modelling of Transit Operations and Passenger Decisions

   Författare :Oded Cats; Haris Koutsopoulos; Tomer Toledo; Wilson Nigel; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Public Transport; Transit Operations; Simulation Model; Traffic Simulation; Route Choice; Dynamic Model; Assignment Model; Control; SRA - Transport; SRA - Transport;

   Sammanfattning : Efficient and reliable public transport systems are fundamental in promoting green growth developments in metropolitan areas. A large range of Advanced Public Transport Systems (APTS) facilitates the design of real-time operations and demand management. LÄS MER

3. 2. The Tail Assignment Problem

   Författare :Mattias Grönkvist; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hybrid optimization; fleet planning; aircraft routing; column generation; airline optimization; tail assignment; constraint programming;

   Sammanfattning : The Aircraft Assignment problem is the problem of assigning flights to aircraft in such a way that some operational constraints are satisfied, and possibly that some objective function is optimized.We propose an approach to aircraft assignment which captures all operational constraints, including minimum connection times, airport curfews, maintenance, and preassigned activities. LÄS MER

4. 3. Kommunikativa strategier i texter om tobaksavvänjning : Innehåll, argumentation och modelläsare

   Författare :Astrid Skoglund; Gunilla Byrman; Orla Vigsø; Linnéuniversitetet; []
   Nyckelord :HUMANIORA; HUMANITIES; Swedish language; critical discourse analysis; smoking cessation; public health education; new rhetoric; argumentation; model reader; motivational interviewing; Svenska språket; kritisk diskursanalys; rökavvänjning; folkhälsoupplysning; nyretorik; argumentation; modelläsare; motiverande samtal; Swedish; Svenska språket Nordiska språk;

   Sammanfattning : The aim of this dissertation is to examine the content and communicative strategies in texts used in a project on tobacco policy delegated by the Swedish government to the National Institute of Public Health (“The National Tobacco Assignment 2008–2010”). The study uses communicative strategies as an umbrella term for the way the texts fulfil the political assignment through adaptation to suit different receivers in a discursive practice with set guidelines for communication between experts and users, and how these strategies are visible in the studied texts. LÄS MER

5. 4. Lignin Model Compounds: Synthesis, Stereochemistry and Acidolysis

   Författare :Shiming Li; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; boric acid complexes; Arylglycerol b-aryl ethers; stereochemistry; 3-Diaryl-2-propen-1-ols; 1; Phenylcoumarans; lignin model compounds; acidolysis; ion-exchange chromatography; 3-propanediols; 2-Diaryl-1; 2; X-ray crystallography;

   Sammanfattning : Lignin model compounds representative of structural elements in lignin of the b-1, b-5, b-O-4, cinnamaldehyde and cinnamyl alcohol types were synthesized. erythro-Forms of b-1 models of the 1,2-diaryl-1,3-propanediol type were prepared by BF3-catalyzed rearrangement of chalcone epoxides and subsequent reduction of the rearrangement products with NaBH4. LÄS MER

7. 5. Elevers tillvägagångssätt vid grupparbete : Om ambitionsnivå och interaktionsmönster i samarbetssituationer

   Författare :Karin Forslund Frykedal; Kjell Granström; Ingrid Hylander; Agnieszka Bron; Linköpings universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; group-work; small group-work; teamwork; group; symbolic interactionism; grounded theory; difference of ambition; ambition dependency; interdependency; group assignment; behaviour; creation of trust; theoretical model; grupparbete; teamarbete; teamwork; grupp; symbolisk interaktionism; groundedtheory; grundad teori; ambitionsdifferens; ambitionsberoende; beroende; tillvägagångssätt; gruppuppgift; tillitsskapande; teoretisk modell; Education; Pedagogik;

   Sammanfattning : The aim of the dissertation is to add to our knowledge and understanding of how groupwork and group tasks are construed among students. This is accomplished be creating a model, which describes the pattern of interaction and the experience that emerge as students try to handle the group-work situation. LÄS MER