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A growing problem in many cities is that the traffic demand fluctuates heavily during the day and that it grows larger as the years go by. This calls for, and the technology to easier measure traffic enables, more efficient traffic light controls that can handle a greater traffic demand but also be adaptive. Centralised control of traffic light might, even though it can be both adaptive and effici
The established scientific reality of asbestos is that (a) asbestos is toxic at a minuscule dose, and (b) exposure should be avoided whenever possible, with the evidence expanding almost exponentially over the past century. The purpose of this research is to explore the historical and global socio-natural entanglements of the economy of asbestos and the resulting mechanisms at play to occlude and
När en ny bil skall designas är det viktigt att kunna förutse vissa fenomen innan en fysisk prototyp finns tillgänglig. Ljudet som orsakas av vägen är ett av dessa fenomen. På grund av känsligheten och komplexiteten i metoderna som används idag vore det intressant ifall man kan använda något enkelt mått för att få en känsla för detta fenomen i en tidig konceptutvecklingsfas. Frågan blir då, vilketThe noise, vibration and harshness (NVH) and body dynamic performance of automotive vehicles is highly dependent of the components included in the body structure and compartment, since they add mass, stiffness and damping to the overall structure. Today, the noise levels in the compartment are predicted using complex and detailed computational models during both early and late stages of the vehicl
Today, the car industry has become one of the greatest users of both wireless and cellular technologies and is increasingly dependent especially in the area of wireless communication. Communication among vehicles is offering a lot of benefits and has testified improvement on safety, efficiency and possible automation of the traffic. A lot of research has been focused on measurement campaigns, by i
This thesis describes the method of identifying unknown parameters that affect the dynamics of a given quadcopter, also known as grey box system identification. This was primarily done utilising an inertial measurement unit and a motion capture camera system. A system of equations describes the dynamics of the quadcopter, and was later coupled with data gathered while flying, in order to use diffe
In this thesis the heating area of a belt furnace for annealing metal powder has been modeled. The model was extended with PI-controllers for controlling the energy added to the model. It was simulated with differently tuned controllers to test tuning principles for finding suitable control parameters for the process. The most promising tuning principles was then written as a manual with the aim f
Resultaten från tidigare miljötekniska markundersökningar utförda av Demikon AB och ÅF Infrastructure AB på fastigheten Berghem 2:26, Ljungby kommun, har visat att fastigheten i fråga är kraftigt förorenad av diesel. Fastigheten återfinns längs med Europaväg 4 (E4), är cirka 2200 kvm och hyser i dag drivmedelförsäljning samt verkstadsbyggnader och lättare industri. Baserat på resultaten från tidigSituated in Ljungby municipality, along Europaväg 4 (E4), one will find the estate Berghem 2:26, which according to previous environmental surveying carried out by Demikon AB and ÅF Infrastructure AB has proven to be heavily polluted by diesel. The estate is approximately 2200 m2 and accommodates fuel sales, as well as workshops and light industry. Based on the results received from previous inves
Freezing injuries usually take place in thawed plant-based food products. To reduce freezing injuries, Pulse Electric Field (PEF) treatment and Vacuum Impregnation (VI) of cryoprotectant were used before the freezing process. The aim of PEF is to provoke electroporation to the membranes of the plant cells, thereby allowing the cryoprotective solution impregnated by VI to penetrate the cells. PEF
Syfte: Syftet med studien var att undersöka om en intensiv läsintervention med det phonicsbaserade datorspelet Grapholearn kunde förbättra avkodningsförmågan hos elever med avkodningssvårigheter. Studien avsåg även se på genomförbarheten och behovet av resurser för att genomföra en intervention med Grapholearn i den svenska skolan. Även möjligheten att använda Grapholearn vid Response to intervent
Syfte. Syftet med föreliggande studie var att undersöka den narrativa förmågan vid återberättande hos 5-åringar med unilateral läpp- käk-gomspalt (LKG) jämfört med jämnåriga utan spalt, samt att undersöka den narrativa bedömningsmatrisen Narrative Scoring Scheme (NSS) som kompletterande analysmetod av återberättartestet Bussagan. Metod. För studien rekryterades 51 barn med LKG och 32 kontrollbarn
Urban fires, particularly in informal settlements in rapidly urbanizing cities in the developing world, are an “everyday disaster” that oftentimes goes unnoticed or under-served in the face of disturbances of the more “lethal reputation”. These disturbances of normal existence are arguably the most debilitating to vulnerable communities and sustainable development, and yet get little attention in
Earthquakes, wind and traffic may cause unwanted vibrations in buildings. Vibration control devices are often installed between floors to suppress such disturbances. In the context of buildings, controllers are commonly designed using methods which are subject to a number of limitations: we cannot discuss optimal performance or conclude that no controller exists which satisfies a given set of desi
Syftet med studien är att undersöka påverkan på ungdomars identitetsskapande genom lagsport, och i vilken utsträckning lagsportens positiva påverkan på ungdomen används och kan komma att användas i behandlingen på ungdomshem så som SiS- hem idag. Frågeställningen som jag utgår ifrån är följande: - Skulle en behandling som bygger på lagsport vara ett sätt att minska återfall för ungdomar som har
There is a growing expectation in the field of sustainable development that cities are the most suitable scale for addressing global environmental issues, particularly through their ability to mobilize local actors. Business improvement districts (BIDs) are a form of public-private partnership (PPP) in cities typically established by associations of private actors that aim to generate value in com
Examensarbetet kommer att undersöka om man genom utveckling av konventionell enkelspåriga stationer (driftplatser) kan få ett mer säkert och kostnadsreducerande alternativ
In contrast to the peripheral role of mother tongue as a subject in Sweden, English has retained an elevated position. Together with Swedish, English is characterized as being crucial to Swedish society, positioning both languages at the top of the linguistic hierarchy. Given the generally perceived low status of mother tongue instruction (MTI) and high status of English in Sweden, an interesting
Det har länge pågått diskussioner om hur Visingsögruppen blev avsatt. Målet med den här studien är att få mer insikt i sedimentens litologiska sammansättning, provenans och genom att sätta upp ett sekvensstratigrafiskt ramverk kunna definiera depositionsprocesser. Studien fokuserade på sediment som tillhör den Mellersta formationen i Visingsögruppen, belägna vid Näs, Visingsö, Sverige. Metoderna sThe depositional setting of the Neoproterozoic Visingsö Group has long been a subject of discussion. This study aims to provide additional insights into the lithological composition and provenance of the sediments and to provide a sequence stratigraphic framework in order to define the depositional setting. It focuses on rocks belonging to the Middle Formation of the Visingsö Group located at the
Nature-Based Solutions (NBS) is an emerging concept which has the potential to address several sustainability challenges. In this multiple case study research on three NBS projects in Gothenburg (Sweden) the projects objectives and evaluated impacts are studied to provide insights into how NBS interventions are implemented in urban contexts. In addition, barriers and drivers for up-scaling are ide
“In a state of exception” : A qualitative study about palestinian refugee camps in Lebanon Palestinian refugees in Lebanon have lived in refugee camps for 70 years. The situation is extremely difficult in these camps since they exist in a national, legal and political state of exception. Actual living conditions in the camps are affected by huge deficiencies, including poor infrastructure, sanita
The aim of this thesis work was to investigate and evaluate new possible industrial applications for large welded plate heat exchangers, with heat transfer areas of at least 500 m2. The research has been carried out through thermal design of heat exchangers for a total of nine cases. The nine cases are real-life applications for processes covering the petrochemical, oil & gas, power, and refin
