Vattenfall Heat AB is a district heat provider in Drefviken, but has yet to establish any cooling systems in this area. This thesis examines the potential client base within the area today and over the coming 20 years. The feasibility of the most common cooling technologies is evaluated and results show a total potential for an installed capacity of 30 MW providing 50 GWh of cooling per year. One of the examined areas shows good prospect for heat driven absorption chillers during the summer months when the heat load is limited..

Denna undersökning utgår ifrån Mary Jo Bitners servicescape-modell om hur fysiska miljöegenskaper formade efter en berättelse eller tema påverkar serviceverksamheter. För att sedan implementera modellen i en digital miljö. Resultatet av att nyttja teorierna kring servicescapes på exempelvis serviceverksamheter ger besökare möjlighet att fly undan vardagen, medvetet eller omedvetet, genom en kombination av olika sinnen. I undersökningen såg vi att besökarens självmedvetenhet kunde jämföras med Mihaly Csikszentmihalyis teorier om ?flöde?, där medvetandetillståndet hos en individ blir uppslukat av individens aktivitet.

The study was performed based on a qualitative method using a hermeneutical approach used to interpret the semi-structured interviews. The study aimed to investigate the Multisystemic therapy (MST) team in Halmstad municipality perceptions on the treatment method multisystemic therapy for youths from the ages of 12-18 years old.The questions were: Does the MST therapists experience that the MST is a method that leads to an improved situation for young people who receive the method? What do the MST therapists describe as opportunities and obstacles in the work with the method?The study builds on previous research on MST and empowerment based on MST. The study shows three therapists and an MST leader's experiences of the treatment and how it is aimed at influencing the parents and the youth for a change. From therapists statements it highlights how the MST method is designed for the young people?s motivation to change by means of the internal and external networks.

The purpose of this thesis was to create a strategic/tactical road access plan. This was done by designing an analytical method which gives the road manager a template to create long-term road access plans. The analytical method will help to identify and appraise roads to be upgraded and give information when it is time for building new roads. The study method involved developing an analytical method. The method was comprised of five main parts: the harvest plan, analysis of the road network, transport costs, quality and storage costs and finally, identification of investment alternatives.

This thesis is concerned with investigating the Roma, a group that is left out in most of the territory bound theories. The theoretical purposes are to develop theories that increase the understanding for the Roma as a diasporic nation without state and the advocacy networks they are organised in. The main empirical purpose has been to study two organisations as cases and how they position themselves against the European Union concerning identity politics. The two organisations are European Roma Rights Centre (ERRC) and Dzeno. They are a part of the same network that works on different levels with the rights of Roma.

It is important to construct or recreate different types of wetlands and study their retention of nutrients, since knowledge of their effectiveness in this matter is poor. In 2003 a wetland was constructed on an old meadow on the western shore of Lake Bornsjön in central Sweden. The main purpose of the wetland was to reduce the amount of phosphorus entering the lake, which is the back-up water supply for Stockholm when the city cannot obtain water from Lake Mälaren. Large areas around Lake Bornsjön consist of agricultural land and the nutrient concentrations in the inflows to the lake are usually relatively high (approx. 1 mg/l total nitrogen and 0.05-0.1 mg/l total phosphorus).

?The modern library in the network society?A study of cultural politicians and librarians opinions about libraries' use of social mediaSocial media is becoming more and more interacted in our daily lives and Carlsson (2013) argues that today's libraries have undergone major challenges in the digital information technology's entry in the library arena. The new technology has led to sum up in one question: how a library should relate to the digital information technology, the issue has applied in particular the social communications media, such as Facebook, Twitter and more. The purpose of this paper is to examine the culture of politicians and librarians 'perceptions of public libraries' use of social media linked to the libraries and their democracy promotion efforts. This is analyzed from Castells theories about the network society and the digital divide.In summary, the study concluded that the majority of the culture politicians and librarians believe that social media is a part of the future of the library.

Teknologi har blivit en viktig del i barn och ungdomars liv. Spel, kommunikation, bloggar, skolarbeten och att umgås via sociala nätverk tillhör aktiviteterna online. Syftet med den här litteraturstudien var att utifrån ett teoretiskt perspektiv där bland annat Actor-Network-Theory (ANT) ingår belysa och utforska barns och unga människors interaktioner på och med Internet och det lärande och förutsättningar för hälsa som kan skapas. Tjugotre artiklar från tidskrifter med en disciplinär bredd, som bland annat innefattar utbildningsteknologi, psykologi, socio-logi och mediakunskap, har studerats. Interaktion var ett genomgående tema i artiklarna.

Uppsats för avläggande av filosofie kandidatexamen iKulturvård, Ledarskap i slöjd och kulturhantverk15 hpInstitutionen för kulturvårdGöteborgs universitet2014:34Slöjdnäring i nätverkanEn intervjubaserad studie av olika aktörersperspektiv på näringens utveckling.

Sweden have 419 000 km road in the country and about half of these roads is forestroads. The forest road net most important mission is to make it possible to deliver wood from the forest to the industries. With a raw material that is spread over a large area the road network is important. Each year has the forest road network been extended with about 1 700 km new roads. To decide if a new road is to be built different forest road cost estimation models has been used.

Stabilization of subgrade is an internationally common technique to improve the characteristics of a soft soil. Improving the stiffness and bearing capacity of the subgrade enables the pavement to be designed with reduced depths of subbase and basecourse aggregates. This makes the stabilization technique both economically and environmentally interesting. Both natural and stabilized soils have high inherent property variability that should be considered when the characteristic value is derived. By analyzing the spatial variability in stabilized and natural subgrades it is possible get the parameters needed for reliability?based modeling of soil properties.

Rapporten beskriver arbetet och resultaten av en jämförelse mellan Sensu och op5 Monitor, vilka är verktyg som används för att övervaka enheter i nätverk, så kallade network monitoring systems. Arbetet har utförts för att utbudet av nätverksövervakningsverktyg ständigt växer och det ansågs värdefullt att jämföra en ny aktör med ett äldre verktyg som är byggd på ett annat tankesätt. Det som ansågs intressant att testa var hur dessa verktyg hanterade de rapporter som skapades och samlades in, om det slutgiltiga resultatet från detta skulle skilja sig åt eller inte. För att testa detta sattes en virtuell testmiljö upp, där Sensu och op5 Monitor rullade parallellt med varandra och övervakade samma system och använde sig utav samma plugin för övervakningen. Experimenten utfördes på två stycken tjänster, BIND9 samt Apache2, i och med att de två pluginen som användes var uppbyggda på olika sätt konstruerades även olika experiment.

In this work, a method was developed and evaluated for calculating the life of welds under the influence of fatigue loads from a vibration environment. Typically, a shaker table is used for testing a component against vibration loads. The shaker table creates a vibration environment that is defined in the frequency domain by a power spectrum.Similarly, a virtual vibration table can be used to calculate the same type of load environment, which can then be used to calculate the expected lifetime. The benefit of this method is that it can be used in design, as well as in simulation of tests before physical verification tests are carried out.Today there are methods for calculating fatigue life of non-welded base material, but since many components contain welded joints, there is a need to apply this method to those types as well. To achieve this, the thesis combines two different areas, which together provide a method for fatigue assessment of welds using a virtual shaker table.The methodology is carried out by modeling the component, and its welded joints, in a finite element program.

The Homogeneous Charge Compression Ignition (HCCI) engine is promising in terms of lowNOx, low particulates and high efficiency. Due to its homogeneous charge, where thecombustion starts almost simultaneously from a number of points in the combustion chamber,only lean mixtures are possible to burn because of the resulting rapid combustion, which is muchfaster than the combustion in an SI-engine or a diesel engine. When richer mixtures are used thecombustion will start earlier and also be more violent.To phase the combustion later and lower the combustion speed, external cooled EGR can beused. The EGR-system used in this thesis uses a divided exhaust channel where one channel andits corresponding valve are used only for transporting EGR back to the intake system.Consequently the EGR-valve is connected to the intake pressure. This system is called Direct-EGR (D-EGR).Engine tests verified that the CA50 indeed is phased later when cooled EGR is used.

The aim of this paper is to find an algorithm to establish and maintain a virtual enclosure around a mobile unit. The area may take any form and should be scalable up to and including national borders. The enclosure is managed on the mobile unit. The target system is Android. Smartphones, tablets and more recently, cameras is examples of mobile units. A modern mobile unit is part of a computer network.