Sökning: "Transport Law"

Visar resultat 16 - 20 av 77 avhandlingar innehållade orden Transport Law.

  1. 16. Unsaturated Solute Transport in a Semiarid Catchment - Nonlinear Analyses and Modelling

    Författare :Pernilla Öhrström; Avdelningen för Teknisk vattenresurslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; teknisk geografi; Hydrogeologi; teknisk geologi; unsaturated zone; Hydrogeology; geographical and geological engineering; solute transport; scaling; soils; semiarid regions; heterogeneity; preferential flow; fractals;

    Sammanfattning : Unsaturated solute transport is highly variable and therefore difficult to predict. In semi-arid areas, where water resources are limited, the presence of macropores is of great importance for crop production. The bromide ion (Br-) and dye tracers are useful for studies of water movement. LÄS MER

  3. 17. Experimental studies of sorption and transport of moisture in cement based materials with supplementary cementitious materials

    Författare :Mahsa Saeidpour; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cement; Concrete; Moisture transport; Hysteresis; Supplementary cementitious materials; Water vapor sorption; Sorption isotherms; Anomalous sorption;

    Sammanfattning : Most deterioration processes in cement based materials are closely related to moisture sorption and moisture transport properties. Therefore, it is important to study these properties, both theoretically and practically. This work is an experimental investigation in this field. LÄS MER

  4. 18. Spatial analysis and modeling of urban transportation networks

    Författare :Jingyi Lin; Yifang Ban; Sten Henning Hansen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Complex networks; transportation systems; network growth; Evolving networks; centrality; urban systems; topology; space syntax; spatial networks; distance effects; gravity laws; planarity; street network patterns; US airline system; China’s aviation system; network efficiency; cellular structure; hierarchy; network representations; Geodesy and Geoinformatics; Geodesi och geoinformatik;

    Sammanfattning : Transport systems in general, and urban transportation systems in particular, are the backbone of a country or a city, therefore play an intrinsic role in the socio-economic development. There have been numerous studies on real transportation systems from multiple fileds, including geography, urban planning, and engineering. LÄS MER

  5. 19. Are We There Yet? Combining qualitative and quantitative methods to study the introduction of CAVs in Sweden, and potential travel demand effects

    Författare :Ella Rebalski; Chalmers tekniska högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; travel demand; Connected and Autonomous Vehicle; drivers; force field analysis; Value of Travel Time; sociotechnical transition; DPSIR; pressures;

    Sammanfattning : By law, Sweden must reach net-zero emissions of greenhouse gases (GHGs) by 2045. Domestic transportation is one sector in which GHG emissions can be reduced substantially. LÄS MER

  7. 20. Security in Physical Distribution - Causes, mitigation measures and an investment model

    Författare :Luca Urciuoli; Teknisk logistik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; security investments.; security measures in supply chains; causes of security vulnerability; antagonistic risks; security; physical distribution;

    Sammanfattning : Recent statistics and terror events testify an increased vulnerability of distribution networks. Antagonistic threats as theft, counterfeiting, contamination and terror are burdening supply chains with unexpected costs in form of lost cargo, production downtimes, lower customer satisfaction, and higher transportation costs. LÄS MER