Due to their complexity and heavy wear from rail traffic, switches are a sensitive part of the railway infrastructure and moreover expensive to maintain. Furthermore, increasing railway traffic not only accelerates the wear rate but also obstructs the necessary maintenance measures. This paper examines the opportunities for a transition to a long-term maintenance strategy in the Swedish railway network. It contains a study of the maintenance strategy of Banverket, and also analyses statistics of errors in the railway infrastructure. The survey was completed utilising interviews with infrastructure managers, maintenance contractors, planners of railway operations and the Banverket material service department.

The vertical electronic excitation energies for the narrow-bandgap polymers LBPF, EP37 and EP62 have been calculated using Density Functional Theory (DFT). Also the vertical excitation energies for the acceptor unit of LBPF have been calculated using the Hartree-Fock (HF), DFT and Coupled Cluster (CC) methods. The calculations cover the visible and infrared wave length region and two strong transitions are obtained, one corresponding to the pi to pi* transition and one corresponding to the pi to Acceptor transition. The excitation energies obtained from DFT are below the corresponding experimental results and attempts have therefore been made to perform bench-marking calculations using a hierarchy of CC methods..

Bofors UwS (Underwater Systems) har påbörjat utvecklingen av ett nytt centraliserat system för att koordinera alla torpedhanterare ombord på ett fartyg till en central enhet. Detta system måste kunna ta emot och i vissa fall sända data till de övriga delsystemen ombord på fartyget. För att lyckas med detta behöver de en kommunikationsapplikation till denna centrala enhet. MONOLITH är en prototyp av en sådan applikation. Dess huvudändamål är att demonstrera hur detta kan utföras och att testa enheter som kan kontrollera ett antal torpeder.

The environment became an established issue on the international political agenda after World War 2. How to preserve natural resources became an issue that concerned several powerful participants, affected by changed conditions in the environmental legislation. This paper is a study of the growing environmental work within the multinational Swedish corporations Boliden, IKEA and SAS and how it was affected by the globalization. The material studied is environmentally related information produced by the companies and also interviews with the Environmental Managers. The information provided has been analyzed and compared with well-known opinions of globalization, trying to find out how the process of globalization has affected the handling of environmental work within the companies.

Syftet med denna uppsats är att studera företaget ÅF:s employer branding-arbete, närmare bestämt samverkan mellan ledningen, HR-avdelningen och marknadsavdelningen.Uppsatsen är av kvalitativ fallstudiekaraktär ochämnar utveckla teori genom en kombination av en deduktiv och induktiv undersökningsansats. Insamlad data är baserad på intervjuer medrepresentanter på ÅF.Sammanfattningsvis har vi kommit fram till att ÅF:s samverkan inom employer branding-arbetet i stort överensstämmer med den teoretiska modell som presenteras. Det finns en huvudsakligen god samordning av ledningens, HR- och marknadsavdelningens samt employer brandmanagers aktiviteter som syftar till att stärka arbetsgivarvarumärket. Dock finner vi en diskrepans mellan ÅF:s och litteraturens definition av begreppet samt en allt för stor fokus på de externa aktiviteterna som en följd av employer brand managers starka band till marknadsavdelningen..

Kompaktaggregat är ett integrerat FTX- och FVP-system som används i passivhus. Vi har gjortenergiberäkningar i programmet VIP+ för att se hur kompaktaggregatet skulle kunna fungera ipassivhus i Sverige.De resultat vi har fått fram ur VIP+ visar att passivhus med ett installerat kompaktaggregat klararav att nå passivhuskraven ända upp till Skellefteå. De beräknade värdena understiger kraven förpassivhus, men en viss marginal behövs för att kraven ska nås även efter uppförandet avbyggnaden. Vi har även tolkat tekniska uppgifter på ett sätt som enligt oss har en positiv effektför passivhus på kallare orter. Därför tror vi inte att värdena för de tre nordligaste platserna ärhelt tillförlitliga.

Changes are occurring in most organizations today and due to the fact that changes often are harder to implement than they seem, it often takes much longer time to implement them than the management have planned. During an organizational change theorist claim that communication between managers and employees is one of the most important things to consider. Therefore, in this essay, our aim is to closer investigate which needs of information and communication co-workers have during a planned organizational change. To collect data, we interviewed five co-workers and one manager who works in an organization which has gone through a major change. Our theoretical framework comprises former research of organizational communication, employee?s needs of communication, change communication and theories of uncertainty during organizational change.

This study aims at using discourse analysis to analyze SFI students attitudes to religion and religiosity in an SFI-context. The questions are: How is the discourse constructed and maintained by religion and religiosity of SFI students in an SFI context? How do SFI participants experience that their religion has affected their time at SFI?Using a case study approach, interviews were conducted with a group of SFI students. The results show that the religious discourse in SFI is influenced by the SFI-context and affected based on the current education discourse that exists there. Furthermore, the discourse is designed and maintained by the participants private religious beliefs and the religion of the majority of the group, One canhere speak of a strong social unit forming a plausibility structure The power structure that emerges is that the majority has the power to define the significance of religion and place within the SFI context. In the SFI-context the participants view is that religion is something private that should not be expressed in the school environment.

The remotely operated underwater vehicles that the client develops have needs of different kinds of data channels. In order to minimize the need of physical cable between the control unit and a ROV, a multiplex protocol has been developed. The protocol has been designed with the aim of using the bandwidth of the transferring link as efficient as possible.The different kinds of data channels used during this thesis project is; RS232, RS485 and CAN. ROM and FIFO-memories have been used to be able to effectively manage the different data channels. All the reading and sending of these channels have been implemented in FPGA-technology, the coding is made generic so that it will be easier to add more channels to the system in the future.The multiplex protocol is a modified version of the method STDM and it is a proprietary protocol.

Syftet med studien är att undersöka hur rekryteringsprocessen vid anställning av chef går till samt vikten av organisatorisk och personlig matchning av chef och företag. Författarna är även intresserade av betydelsen av psykologiska kontrakt i rekryteringssammanhang. Studien är inriktad mot rekryteringsföretag specialiserade på chefsrekrytering som organisationsmässigt skiljer sig så mycket som möjligt från varandra för att få en bredare syn. Undersökningen har delats in i olika områden som består av rekryteringsprocessen, meriter och personlighet samt organisatorisk passform. Studien är utförd genom intervjuer på sju deltagande rekryteringsföretag belägna i Mälardalen.

This study was performed in order to evaluate if the method of collecting uterine secretion by the tampon-method is representative for use in studies of uterine secretions in mares. Uterine secretion collected by tampon in six mares was compared with secretion collected by aspiration, regarded to be a native sample, at the Institution of Obstetrics and Gynaecology, SLU, Uppsala. Proteinanalysis was made at the Department of Farmaceutic Bioscience, toxicological unit, Uppsala University. Cytological smears and ultrasonography was used to assess if the tampon had caused an inflammatoric reaction that could influence the protein content of the samples. The results suggest that the tampon and aspirat method do not differ when it comes to proteinconcentration, but the distribution of proteins differ between these different collection methods. This difference could not likely be explained by means of proteins due to an inflammatory reaction from the tampon, since neither the cytological nor the ultrasonographical examination gave any indications of inflammation.

This study is based on interviews with heads of unit, care staff and senior representatives from a total of six people. We have in this study directed our focus on care quality in the elderly as a concept in development. It appears, when the elderly do not have any dependents, it is even more important that staff supports some extra where no relatives are involved.Quality of life is the broader concept of good quality care and where a good quality of care is a necessary condition for a good quality of life. According to the social services care is the target that older people will live a good life and be allowed to live in a safe environment, which we intend to investigate in this study. Opportunity for greater influence should now be given to older people and their families on how interventions should be designed and implemented.

Syftet med studien var att beskriva hur närstående till intensivvårdspatienter upplevde en intensivvårdsavdelning (IVA) med fokus på delaktighet och omvårdnad. I studien intervjuades fem närstående. Intervjuerna analyserades med hjälp av en förenklad variant av meningskodning och tre kategorier som beskrev de närståendes upplevelser av IVA utvecklades. Kategorierna benämndes: "Första intrycket av IVA", Att leva med osäkerhet" och "Att vara delaktig". De närstående upplevde ett inre kaos när deras anhörig vårdades på IVA och använde sig av olika copingstrategier.

Kompaktaggregat är ett integrerat FTX- och FVP-system som används i passivhus. Vi har gjortenergiberäkningar i programmet VIP+ för att se hur kompaktaggregatet skulle kunna fungera ipassivhus i Sverige.De resultat vi har fått fram ur VIP+ visar att passivhus med ett installerat kompaktaggregat klararav att nå passivhuskraven ända upp till Skellefteå. De beräknade värdena understiger kraven förpassivhus, men en viss marginal behövs för att kraven ska nås även efter uppförandet avbyggnaden. Vi har även tolkat tekniska uppgifter på ett sätt som enligt oss har en positiv effektför passivhus på kallare orter. Därför tror vi inte att värdena för de tre nordligaste platserna ärhelt tillförlitliga.

The data acquisition system COMET developed by Saab AB contains a unit for signal conditioning and A/D conversion, called KSM. The varieties in signal conditioning constitutes of a number of specific PBAs and maintenance as well as reconfiguration of these are complicated not to mention costly. This thesis has aimed to investigating whether the signal conditioning circuits can be replaced by a general purpose, programmable solution. If so, how can this be done? The development has been carried out by evaluating ideas through the use of a laboratory environment and has resulted in an analog design for laboratory purpose.