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Antennas can be found everywhere in our everyday life. One of the applications for them are space satellites, which can be used for communication, positioning and weather supervision. A satellite carries several components on its body, such as solar panels and cameras, therefore there is a volume restriction for the antenna to fit. This requirement gives rise to restrictions in the far-field for t
Stadsplanering är idag ett aktuellt ämne då samhället utvecklas, bland annat genom en stark urbanisering. Tidigare utformades samhället genom att planera för bebyggelse och trafik separat. Idag bygger planeringsperspektivet istället på en integrerad stadsplanering mellan bebyggelse- och trafikplanering. Trots den integrerade stadsplaneringen utgår de olika delarna från olika lagar, Väglagen, Lagen
Background and purpose Several studies have shown that surgery with pre- or post-operative adjuvant radiotherapy reduces the local recurrence rate in rectal cancer patients. Preoperative evaluation of lymph node involvement is difficult but important for assessing the benefit of radiotherapy. Radiologists usually assess lymph node sizes and shapes to determine nodal involvement, but it can be diff
Uppsatsen ämnar att förstå digital interaktion och varför det finns en lägre kommunikativ spärr vid internetanvändning än vad det gör vid fysiska interakationer. Denna uppsats bygger främst på interaktionen som sker mellan människor på Facebook. Interaktionerna studeras ur ett sociologiskt perspektiv främst för att kunna jämföra det fysiska samhället med det digitala samhället. Uppsatsen har företThis thesis aims to understand the digital interaction and why there is a lower communication barrier at the use of Internet than it is in the physical world. This thesis is based primarily on the interaction that takes place between people on Facebook. The interactions are studied from a sociological perspective primarily to compare the physical society with the digital society. The thesis mainly
Soot characteristics such as absorbing light are heavily dependent on its structure and interaction with other compounds. By coating soot or collapsing the soot core, the characteristics will be altered which affects its climate forcing, the lung deposition and other interactions with the human upper airways. In this work a new approach to measure aerosol particle mass with the Aerosol Particle Ma
This master project has had the purpose of designing a protection or safety solution for earthquake disaster. Lack of the solutions for a night time earthquake scenario channeled this project to focus on a possible safety solution during sleep position. Other concerns of this project has been to understand human behaviour during panic situations and people’s relationship with the reality of a poss
Bostadsområdet Husensjö i Helsingborgs stad är ett av flera områden som troligtvis kommer att genomgå en förtätning till följd av befolkningsökningen i staden. Området har ett utsatt läge då det ligger i en naturlig lågpunkt och därmed tar emot stora mängder avrinning från det kringliggande avrinningsområdet samtidigt som vattnet inte kan ledas ut på annat sätt än via ledningsnätet. I och med att
The number of devices connected to the Internet is rapidly increasing. Especially the number of Internet of Things devices. These devices contain software which, like any other software, needs to be updated. With the great amount of devices to update, this calls for a manageable updating solution which does not depend on user interaction. In this thesis we present a solution to dynamically update
This thesis extends previous work on improvisation in operational environments by asking if the tendency to improvise among maintenance technicians, working on a remote location in a centralized organization, is influenced by circumstantial factors. The factors of interest in this study are the accessibility of help from the centralized organization and the perceived degree of centralization. Thi
All over the arctic and sub-arctic region global warming is affecting permafrost. When permafrost thaws, organic material becomes available for decomposition, hence an increase of greenhouse gas emissions to the atmosphere. In the northernmost of Sweden, on a mire close to Abisko, a snow manipulation project is ongoing. The experiment is trying to mimic predictions of future conditions and advance
This publication is a summary of the work with my degree project in architecture and a description of the process during the length of the project. The main program is the design of a nature visitors center in a nature-reserve. The design process is influenced by parametric design to solve specific design goals, light studies and the experience of volume.
This thesis investigates how multi-actor dependencies affect the ability to assess capability. It is also investigating if the accuracy of capability assessments for tasks where multi-actor dependencies are present, depends on if capability is assessed individually or with all participating actors. Two multi-actor dependency models were considered representative for all cases. Dependency I represe
Leap-frog migration, i.e. when a northerly breeding population/species migrates further south compare to southerly breeding population/species, is a common migration pattern in birds. However, it is still unknown which factors facilitate the evolution of such a migration pattern pattern. A textbook example of a species exhibiting leap-frog migration is the Common Ringed Plover Charadrius hiaticula
Scanian wetlands were extensively drained in the late 19th and early 20th century, with as little as 10% of historical wetlands remaining today. However, due to an increased understanding of the many important functions served by wetlands in the agricultural landscape, there’s now a strong incentive to restore these systems. In this study, 83 wetlands created as part of Kävlingeåprojektet were vis
As a consequence of increasing land-use intensity and changes in farming practices, many species of pollinators have been shown to decline. These declines have led to concerns about crop pollination services performed by wild pollinators. The aim of this study was to investigate whether farming practice (organic and conventional), and increasing percentage of semi-natural grassland in the surround
Urbaniseringen innebär att det blir mer och mer hårdgjorda ytor i städer, vilket ökar belastningen på dagvattennätet. Vidare så innebär klimatförändringarna ytterligare utmaningar då nederbörden i Sverige antas öka. För att hantera detta föreslås hållbara dagvattenlösningar varav gröna tak kan vara en del. Detta skapar ett behov att på ett enkelt sätt modellera avrinningen från gröna tak. I detta The increasing urbanization means there are more and more impermeable surfaces in cities. This is straining the capacity of the stormwater network. Furthermore, climate change is assumed to bring about more precipitation in Sweden in the future. In order to deal with these challenges a sustainable approach to stormwater management is needed. Green roofs can be one part of the solution. This create
This thesis explores the communication between interconnected System-on-Chips that process images. It explores the difficulties faced when combining two heterogeneous multiprocessors to act as a single unit. It also examines the performance gain of the resulting system. The thesis shows that not only does the resulting system decrease the bandwidth usage on the individual System-on-Chips, but it
Under de senaste åren har stora resurser lagts på forskning kring utvecklingen av biomaterial för ersättning av fossil-baserade material. Förpackningsindustrin i synnerhet är en sektor känd för att generera enorma mängder fast avfall, med produkter som inte sällan har betydligt kortare livslängd än sina materialkomponenter. Polylaktid (PLA) är en mångsidig biopolymer som används kommersiellt föIn recent years, large efforts have been put into the research of biomaterial synthesis for the replacement of fossil-based materials. Particularly in the packaging industry, a sector responsible for generating enormous amount of solid waste in which products have a considerably shorter life span than their material components. Polylactic acid (PLA) is a versatile, commercial biopolymer used fo
Here we present a solution for debugging compilers that use abstract-syntax trees as their internal structure. The solution focuses on capturing one specific state of the compilation process, and should not be confused with the more known step-by-step debugging. The goal is to visualize the current state of the abstract-syntax tree and present its data to the user in an intuitive and interactive w
The purpose of the thesis is to examine the evidence for druids and their actions in classical texts and archaeological finds. Initially the materiality and description of druids in the classical sources will be analysed. It will be followed by an analysis of a selection of archaeological finds that researchers have connected to druids. Finally, the archaeological material will be discussed in ord
