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Our goal is to present a mathematical model useful for distributed optimization of traffic routing in multi-domain Internet networks. In such environments each domain is operated autonomously and has access to limited information about the rest of the network. Our model reflects this through an appropriate problem decomposition with respect to individual domains. The decomposition aims at supporti
A literature review and a questionnaire study with 62 participants were carried out to provide recommendations on the design of a set of evacuation systems for road tunnels: 1) Traffic Information Sign (TIS) - message and size of the sign (large or small), colour scheme, and use of pictograms and/or flashing lights, 2) Emergency exit portal layout - colour scheme, 3) Acoustic systems - voice messa
The report is a statistical analysis of how the creative class approach and specifically how technology, talent, tolerance and the creative class are linked to regional growth in Sweden. When examining the location of the creative class, technology, talent and tolerance, Uppsala, Stockholm, Gothenburg and Malmö-Lund appear as the most competitive Swedish regions. By use of multivariate regression
This study has observed and investigated random telegraph noise in the photoluminescence from InAs quantum dots in GaAs and InP quantum dots in GaInP. The dots are grown by the Stranski-Krastanow technique with a sufficiently low surface density that individual dots easily could be investigated. The luminescence from many single quantum dots, exhibiting switching between two levels, has been spect
Development and optimization of the production of lactic acid bacteria (LAB) and their attendant 'natural' inhibitors as biopreservatives to control undesirable bacteria currently remains a primary focus of several laboratories involved in research concerning food safety and quality. Strategies utilized to study incorporation of biopreservatives into food include either direct use of LAB-strains o
The advantages and disadvantages of field survey as a method for locating possible Stone and Bronze Age sites are described. Survey in the spring was favorable for finding Stone Age sites, while autumn survey was more successful for locating Bronze Age sites.
The current form-giving activity in industrial design is, by and large, characterised by explorations that depend on an individual’s capability to mentally manipulate a solution space from which to select and express the intended result. Designers often rely on artistic experimentation, aesthetic inspiration, or product specifications. Such approaches often lead to satisfactory results, but could
The work presented here aims at producing hydrogen for proton-exchange fuel-cell applications from hydrocarbons. This thesis describes an integrated catalytic converter comprising a steam-reforming reactor (heat of reaction supplied by catalytic combustion), a water-gas shift reactor and a preferential oxidation of carbon monoxide reactor, and the work performed on the fuel processing catalysts th
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Kapitlet tar sin utgångspunkt i föreställningen om ett autentiskt liv. Autenticitet är ett av samtidens mest betydande ideal. Men autenticitet är också en antimodern affekt, ett försvar mot modernitetens abstraktioner och artefaktvärldar. Kapitlet diskuterar den samtida människans och den samtida kulturens villkor och uttryck. Diskussionen kan betecknas som en diagnos av människan (antropologisk d
Popular Abstract in Swedish Kontaktallergi är en vanlig orsak till eksem i arbetslivet. Ett av de viktigaste arbetsrelaterade allergenen är epoxiharts. Det allergiframkallande ämnet i det vanligaste epoxihartset visades på 1970-talet vara det ämne, diglycidyleter av bisfenol A (DGEBA), som hartset är uppbyggt av. Dessa epoxihartser är sedan decennier med i den standardserie med allergiframkallandeEpoxy resins based on bisphenol A are well-known contact allergens and often cause occupational contact allergy. The most important allergen is the monomer diglycidyl ether of bisphenol A (DGEBA). Epoxy resins of the bisphenol F-type contain 3 isomers of the diglycidyl ether of bisphenol F; p,p'-DGEBF, o,p'-DGEBF, and o,o'-DGEBF, whereas epoxy resin(s) based on bisphenol A (DGEBA-R) contain virtua
With today’s rapid changes in socio-economy and technology, knowledge and learning are critical issues for private and civil service organizations. The needs for competence development range from short informal courses (without ECTS credits) to formal courses at university level (with ECTS credits). This article describes objectives and results of a Leonardo project, eGIS+ that developed and imple
