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  • 1.
    Abdallah, Ali
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    The perception of Nuclear powerin Sweden: How engineering students view it2017Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Nuclear power has been an important part of the electricity generatingin Sweden in almost half a century. However, the use of nuclear powerraises many complex issues such as economy, accident risks, andradioactive waste management and storage. Nuclear power has thereforebeen debated intensively in Sweden as in many other countries since the1970s. Several countries have changed their nuclear policy and starteddecommissioning programs following the nuclear accident in Fukushimaback in 2011. Citizens' support for nuclear power has declined worldwidein last few years, including in Sweden. This study aims to investigatethe perception of nuclear power among engineering students and showsthat the majority of engineering students, who generally are positivetowards technology, have been affected by their surrounding and areagainst nuclear power. Engineering students in general, both supportersand opponents of nuclear power, agree that Sweden should gradually phaseout nuclear power and replace it by renewable energy sources.

  • 2.
    Aboud, Mathilde
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Corporate Sustainability as a Foresight Activity: Can Corporate Sustainability help companies survive in an increasingly competitive environment?2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In many corporations, sustainability has become an important activity to focuson, with the aim of preparing corporations for the future. Foresight, a newerfield, is increasingly becoming an important activity of corporations, with thepurpose of surviving long-term. These motives make companies’ involvement with corporate sustainability and with corporate foresight fundamental. However, because foresight is a recent field, it implies processes that are less mastered by professionals than sustainability.

    Since the motives of corporate sustainability and corporate foresight are similar, the purpose of this thesis is therefore to understand if corporate sustainability can contribute to corporate foresight implementation. Specifically, the purpose of this thesis is to identify which corporate sustainability (CS) activities can be integrated to which corporate foresight (CF) activities, to facilitate and foster foresight.

    Consequently, the contributions of the research consist in extending the knowledge about sustainability as a foresight activity and in proposing suggestions to incorporate sustainability to foresight activities.

    This study reviews several CS frameworks and several CF frameworks, provides a deeper understanding of the underlying processes needed for the implementation of CS and CF, and identifies the similarities. The study specifically builds on the Maturity Model of Corporate Foresight from the book Corporate Foresight – Towards a Maturity Model for the Future Orientation of a Firm from Rohrbeck (2010). Based on the theoretical findings, qualitative interviews of sustainability professionals are carried out. Those interviews are meant to test the theoretical findings.

    The research provides knowledge on the management of corporate foresightby providing insights on foresight practices that benefit from incorporating sustainability practices. The conclusion of the paper consists in a model thatpresents explicit ways in which corporate sustainability contributes tocorporate foresight. In fact, it is shown that corporate sustainability fosters strong internal and external networks and creates a corporate culture favourable to change. Internal and external networks facilitate cross-functional collaboration and communication; and employees favourable to change are more open to new ideas; both being key for foresight implementation. Thus, Corporate Sustainability supports Corporate Foresight because it sets up a favourable corporate culture, and because it paves the way for appropriate work processes (internal and external collaboration for instance).

  • 3.
    Abrahamsson, Andreas
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Division of Scientific Computing.
    Using Function as a Service for Dynamic Application Scaling in the Cloud2018Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Function as a Service is a new addition to cloud services that allow a user to execute code in form of a function, in the cloud. All underlying complexity is handled by the cloud provider and the user only pay per use. Cloud services have been growing significantly over the past years and many companies want to take advantages of the benefits of the cloud. The cloud services deliver computing resources as a service over a network connection, often by the Internet. To use the benefit of the cloud, one can not just move an application to the cloud and think that it will solve itself. First of all, an application needs to be optimized to be able to take advantages of the cloud. Therefore, together with Tieto, a microservice architecture have been the main architectural pattern when Function as a Service has been evaluated. A major problem with applications, both application built with a monolithic and microservice architecture, is to handle great amounts of information flows. An application may have scaling issues when an information flow becomes too large.

    A person using Function as a Service does not have to buy, rent or maintain their own servers. However, Function as a Service has a certain memory and runtime restrictions, so an entire application cannot be applied to a Function as a Service. This thesis examines the possibility of using Function as a Service in different architectural environments and estimating the cost of it. Function as a Service is a new addition to cloud services, so cloud providers are also compared and evaluated in terms of the Function as a Service functionality. Function as a Service has been tested directly on various

    cloud platforms and even developed and executed locally, encapsulated in containers. The results show that Function as a Service is a good complement to an application architecture. The results also show that Function as a Service is highly flexible and cost-effective, and it is advantageous compared to physical servers and Virtual Machines. Depending on how a function is built, the developer can lower the cost even more by choosing the cloud supplier that fits best for their use. With the flexibility of Function as a Service, applications can handle greater information flow without bottlenecks in the infrastructure and therefore, becomes more efficient and cost-effective. 

  • 4.
    Abuzohri, Ahmed
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Business Development: Market research & feasibility study of a PV-wind hybrid system for commercial use2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The definition of environmental sustainability has emerged strongly in the past decades. Industrial organizations worldwide have gone through a number of changes to take their social responsibilities and maintain sustainability by, among other things, replacing the conventional energy-based applications by renewable energy-based solutions. A so-called hybrid power system for electrification, consisting of wind turbines and solar panels, was developed by Vertical Wind AB to be installed on rooftops of residential buildings. The present thesis project analyzed the willingness of the large real estate companies in Uppsala region to adopt the new concept for electrification and conducted a market research on the new developed wind turbines, by Vertical Wind AB, in addition to solar- and wind resources in the target locations. It turned out that the willingness of having such a power system for electrification was high but not extremely high as expected and the hybrid power system was perceived as any other product or investment on the market where profitability is the vital decision parameter while the environmental aspect was slightly considered.

  • 5.
    Ackeby, Susanne
    et al.
    STRI.
    Bollen, Math
    Luleå tekniska universitet.
    Munkhammar, Joakim
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
    Prosumer with demand-response:Distribution network impact and mitigation2013Report (Other academic)
    Abstract [en]

    This report is the result from a project funded by ELFORSK done by STRI. Theproject is studying the effects the introduction of so called “prosumers”(customers with own production) and electrical vehicles will have on differenttypes of networks. Four different cases are studied: covering urban and ruralareas with different types of customers.In the urban areas the power through the transformer will be the limitingfactor. The major impact in the cases studied is from the introduction ofproduction from photovoltaics at the customer-side of the meter. This willresult in an introduction of surplus due to production which in one case led toan increase of the absolute power through the transformer with more than30%, which resulted in transformer overloading.In the rural areas the voltage drop or rise will be the limiting factor. The casesstudied had already high voltage drops even in the base cases. In the casestudies it was seen that the voltage drop could be slightly reduced whenintroducing more local production, but the production also led to that voltagerise could appear. As a result the interval of the voltage variations wasincreased, which in turn leads to difficulties with designing the network suchthat neither overvoltage nor undervoltage occurs.Introducing control algorithms had a very positive effect on reducing the netproduction from the photovoltaics. Using both hard and soft curtailment madeit possible to remove all overcurrents or overvoltages. Using hard curtailment,where all production is turned off during overcurrent or overvoltage, leadshowever to a large reduction in energy from renewable energy sources.Therefore soft curtailment should as much as possible be used.The control algorithms studied for reducing the net consumption had a morelimited effect and even resulted in an increase of the maximum netconsumption. When trying to reduce the net consumption during an overload,the reason of the overload could only be moved in time and not removed as inthe case of reducing the net production. And since often the period duringwhich the power exceeds the limit is longer than the number of hours possibleto move the energy, sometimes moving the energy had an adverse effect.The model used for controlling the net consumption needs furtherdevelopment, but it is still possible to draw the conclusion that this type ofcontrol offers only limited possibilities for mitigating overload or undervoltage.The effects of introducing prosumers and more electrical vehicles as defined inthe selected cases did not show any alarming results in this study. However,studies to learn more about the possible consequences of changes atcustomer-side are important to be able to handle the impact of such changeson the network.Further future studies needed: database with load and production data;improved control algorithms; demonstration project; experience from othercountries and studies on reactive power compensation.

  • 6.
    Aggarwal, Shubhesh
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Kaldi, Kjzal
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Agile Project Management for Knowledge-Based Projects in Manufacturing Industry: Case Study: Epiroc Drilling Tools, Fagersta, Sweden2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Epiroc Drilling Tools is a manufacturing company that produces tools for rock mining and excavation. The company adopted the principles and framework of Lean Product Development in their R&D department with few practices of an agile framework called Scrum. These agile practices are used in the pre-study phase or the knowledge value stream of their lean product development. Hence, this research is limited to the knowledge value stream within the R&D department.

    The use of agile project management in manufacturing industry is unique and majority of the agile frameworks are specifically designed to suit the needs of software development companies. Several theories like Scrum, Lean, Kanban and DSDM were studied by the researchers to scrutinize the current framework of the department. The challenges and the similarities of the currently used framework with several other agile frameworks and the companies are discussed. Several qualitative research methods were adopted to know the viewpoints of the working employees in the department which are compared with other companies like Volvo Cars, ABB, LShift, EnergySoftware and from another division of Epiroc called Rocktec Automation who faced some similar challenges while practicing agile project management. After further research on the theories and comparison of the process, roles of the working employees and documentations within the knowledge value stream, DSDM had more similarities with the currently used framework than Scrum. This allowed to recommend ways that can fill the missing gaps using practices of DSDM without altering the existing working procedure in the knowledge value stream. This ensures that the improvement in the knowledge value stream remains continuous. On the contrary, a brief discussion is included on whether there is a need to be agile for manufacturing industries or is it just a changing trend in the field of project management.

  • 7.
    Ahlqvist, Carolina Marianne
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
    Projektorganiseringen som drivkraft och hinder för industriell förnyelse i byggindustrin: en fallstudie av Skandionkliniken2014Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Understanding how innovation and renewal occurs in an industry is important for how to manage technical development for individual companies. It is also important for creating a beneficial industrial context for renewal, from both a political and an industrial perspective, in which new solutions can arise and spread through the involvement of several actors of the industry. How innovation and renewal occurs in the construction industry in Sweden is however viewed differently. One challenge that has been pointed to is that most of the work performed in the construction industry is organized in projects, which in turn should affect how innovation and renewal can be achieved.

     

    The aim of this thesis is to provide an understanding of how the project organizing in the industry affects innovation and renewal. This is executed through a case study of the construction of Skandionkliniken, a proton therapy clinic, and by using an industrial network theory that challenges the traditional view of how innovation is achieved. One important understanding drawn from this study is that renewal is created in the interface between companies and their resources. The kinds of innovation and renewal that can take place in the projects highly rely on technical interdependencies and organizational features of the involved actors. Three conclusions are drawn from this study; firstly, innovation and renewal in the construction industry occurs gradually across projects, secondly, the type of innovation that occurs is not what is expected from a traditional point of view, and thirdly, therefore it is not necessarily obvious when or how it takes place, which has implications both for policy and company management.

  • 8. Alfredsson, Axel
    et al.
    Berefelt, Erik
    Hur kan ett utökat BIM-användande uppnås i infrastruktursektorn?: En fallstudie av NCC:s lokala projektorganisation i Uppsala2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to examine how BIM can be used in a more widespread way at a contractor's project organization within infrastructure. This includes an analysis of the factors that are important to take into account and what barriers an organization must overcome. The thesis has also compared infrastructure- and real-estate projects in terms of BIM-usage.

    A case study has been carried out at the construction company NCC in Sweden with a qualitative approach. The study builds on a theoretical framework and empirical data that have been gathered through a literature review and interviews.

    The results show that there is a need for at least one person responsible, and with mandate to drive change at a local level in the organization. The planning and production phase need a consensus on how to work with BIM and how the technology should be used within a project organization. There is also a need for a requirement and monitoring process towards planners and consultants before the planning process starts.

    Moreover, the study concludes that BIM usage in infrastructure projects differ from that of real estate project. It therefore suggests that the two should not be directly compared in terms of the potential of the technology.

    Keywords: BIM, Building information modelling, Infrastructure, Case study, Innovation, Project-based organizations

  • 9.
    Anderberg, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Kundtillfredsställelse inom hållbarhetsarbete: Metoder för att mäta kundtillfredsställelse inom hållbarhetsarbete i en kommun2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The study seeks to identify methods of measurements of sustainability development from a customer satisfaction point of view in a municipality at the urban management section. The studied organization is experiencing a potential for development within how sustainability development is being measured. The sustainability work is being performed cross-sectional within the municipality. The sustainability management is being performed with various methods. In order to reach the purpose with this essay the formal and official control documents for the department and the municipality has been analyzed with qualitative methods through direct observations as means to identify primary data. After collection of the data semi-structured interviews has been performed with individuals within different areas that has a direct connection to the organizations sustainability work, in order to complete the direct observations. As theory concepts within sustainability, methods for reporting and measuring sustainability, quality, customer satisfaction, LCA-analysis and earlier research has been used. Earlier research has mainly debated methods of measurements of social sustainability or methods and reasons for sustainability reporting. The most important results is that the organisation has a clear and structured sustainability program but do not perform any kind of measurements of the work from a customer satisfaction perspective. It has not been possible to identify a standard method for measuring this within any available theory. The conclusions within the study gives that the municipality hast he possibility to collect information about what the customer expectations is regarding sustainability through for example a poll. It is likely possible to standardize methods to follow up on sustainability from a customer satisfaction perspective in order to increase the customer satisfaction.

  • 10.
    Anderson Kronlid, Carl
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Sundin, Robin
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Varför tror vi att vissa företagär mer hållbara än andra?: - En studie om hur företags motiv och kommunikation kringhållbarhet är relaterat till konsumenters uppfattning2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • 11.
    Andersson, Christoffer
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Utvecklingen av samverkansregler mellan hälso- och sjukvården och näringslivet: Samverkan och krishantering i fält av legitimitet2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Collaboration is a form of organization on the rise in Sweden. For health care, it is ofinterest to collaborate with industry to ensure that needs for specialist education andtraining are met and that products developed meet the relevant requirements.Conversely, industry actors have an interest to have a close collaboration with healthcare in order to gain insight into customer needs, provide information about theirproducts and to test products in development.The starting point of this study is an agreement and regulatory framework for formsof collaboration between public health care in Sweden in general and thepharmaceutical industry, the medical device industry and the laboratory technologyindustry. The research questions concerns how this agreement has evolved and theprocess surrounding its emergence may contribute to knowledge about collaborationas a form of organization and the relationship to concepts such as legitimacy,corruption and institutional theory.By tracking the emergence of the current regulatory framework genealogicalthroughout history, the study uncovers how the agreements have played a role in andcontributed to the legitimization and institutionalization of collaboration practices andhow crises have changed the shape of the practices. A theoretical treatment ofrelevant concepts such as legitimacy, institutionalization of practices, corruption andstigmatization of organizations form the basis for an interpretation and analysis of theprocess.The conclusions of the examination of the historical process that led to the currentagreements contribute to empirical knowledge of how crises and stigma affect thelegitimacy of collaboration practices and how the repair of legitimacy can be donesuccessfully after a crisis. The treatment of the empirical material is also a historicalsource for the development of ethics agreements between public health care andpharmaceutical industry and the medical industry in Sweden.

  • 12.
    Andersson, Emma
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Uppdraget och ansvaret: En fallstudie hur några lärare uppfattar sitt uppdrag och dess ansvar på en grundskola2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    During the last couple of years, an increasing number of teachers have chosen to leave their profession in the world of teaching. There a number of reasons as to why teachers are leaving their current employment; some teachers describe their administrative workload being overwhelming whilst others state that the general responsibility at the workplace has increased. In addition, some teachers declare that the general workload also has increased. Nowadays there is a lack of educated teachers, approximately around 60 000 vacant posts need to be filled in the Swedish school-system. In a school, located in the south of Sweden, there has been a large shift of employees. There has been a large number of teachers, who have been on sick leave or left their employment voluntarily. In a pre-study, made in the spring of 2019, which this essay is based on, ambiguities were identified in regard to the job description and the division of responsibility, in the teaching profession. In order to carry out the study of this essay, a case study with an abductive approach was chosen to investigate the factors behind the problems previously mentioned, in the previously mentioned a south-Swedish school. The premise of the study was to present different factors which influence and support the teachers’ mission. The intention of the essay was to identify and map factors which can promote mission- and responsibility-comprehension in the school.  To enable the essay and the study, the following questions were used: Which factors are hindering the teachers’ mission- and responsibility comprehension? and Which factors create mission- and responsibility comprehension?. To understand the teachers’ challenges in everyday tasks and discover possible factors that are influencing the teachers’ mission, the author of the essay has studied results which previous research has produced. The collection of data is a qualitative data collection method consisting of observations of teachers as well as individual with the teachers. In chapter 4, results, the results of the observation-schedule and the teachers’ dictums are presented. The factors which obstructed the teachers in their daily work were (1) Digitalized communication, (2) Confidence and honesty between staff, (3) Lack of cooperation between colleagues, (4) The meeting’s agenda, which took time from the teachers’ work, (5) The lack of leadership and (6) The teachers’ working methods. The factors which promoted mission- and responsibility comprehension were (1) The teachers’ comprehension of their mission, (2) The structure of the meetings, in the shape of a scheduled day and time for the meeting, (3) The motivation and dedication the teachers feel for their job as well as (4) The willingness to cooperate between teachers. To create better opportunities for mission- and responsibility comprehension, a PDSA-cycle was presented for the continuation of the work improvement for the school.

  • 13.
    Andersson, Malin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Gabre, Viktor
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Lagbasens roll i byggproduktion: en studie om motivation och ledarskap2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In the construction industry, there has been a drop in productivity in recent years, and despite the fact that motivation is a key factor when it comes to create productive work, there seems to be few studies that focus specifically on what motivates the construction worker. The studies that exist actually seem to exclude the great influence of the foreman and impact on the construction worker motivation, which this paper intends to investigate further.

    The aim of the study is therefore to understand what motivates and demotivates the construction worker and understand the role and impact of the foreman on constructions worker motivation. The influence of the foreman on the construction team seems to be non-present in studies and research within the construction industry and therefore, this thesis refers to emphasize this important role.

    The work is performed at the construction company Skanska during the spring term 2015 where the interviews took place with employed construction workers, foremen and supervisors. The study has shown that workers are proud and want to create a quality end product. Standstills and revised planning is common within construction but are obstacles to their creation and a significant demotivator at work. Lack of commitment from other co-workers creates dissatisfaction and irritation, which negatively impacts the overall motivation.

    The position as a foreman requires both extensive knowledge and experience in construction management. As it seems the foreman also should be a people person. The study has shown that the foreman has a major effect on construction worker motivation by scheduling and distribute the work fairly among the workers. It also appears that the foreman has some form of intermediate impact on workers motivation, by adjusting how the worker interprets the external factors that affect their motivation.

  • 14.
    Andersson, Marcus
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Business Studies.
    Sigvardson, Patric
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Business Studies.
    Embracing Blockchain: The Challenges of Collaborative Innovation Within the Financial Industry2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Creating standardized infrastructures for new technologies has become a frequent event in recent years, forcing competing firms to together collaborate in order to develop and mutually agree on a common standard. This is due to technologies such as blockchain (distributed ledger) technology that need interoperability to reach its full potential, making the collaboration aspect crucial for organizations that want to adapt to the technology. Therefore, this study’s purpose is to identify and analyze the challenges of creating such a standardized infrastructure. A case study was used to analyze these challenges, which involved experts of blockchain technology and three Nordic banks connected to the blockchain consortium R3. First, a pre-study took place with the help of blockchain experts, who helped identify potential problems regarding blockchain (distributed ledger) technology. Secondly, a main study was conducted consisting of four interviews with key persons representing the banks, in addition to collecting secondary data via news articles, and press releases. With the help of co-opetition theory and a technical description of blockchain (distributed ledger) technology, an analytical model was developed to support the analysis of the data collection. The analysis focus on aspects of co-opetition drivers, co-opetition capabilities, co-opetition dynamics and blockchain aspects, which were used to showcase the challenges of collaborating on creating a standardized infrastructure. The result of this study highlights the importance of learning and educational aspects, the size of a cooperation and threats from other competing solutions, which generates challenges. In addition to the identified challenges, this study has also contributed to an understanding of how these aspects can come to affect a collaboration.

  • 15.
    Andersson, Martin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Ek, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Hedman, Ludvig
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Johansson, Fredrik
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Sehlstedt, Viktor
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Stocklassa, Jesper
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Snögren, Pär
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Pettersson, Victor
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Larsson, Jonas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Vizuete, Olivier
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Klintberg, Lena
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Thin film metal sensors in fusion bonded glass chips for high-pressure microfluidics2017In: Journal of Micromechanics and Microengineering, ISSN 0960-1317, E-ISSN 1361-6439, Vol. 27, no 1, article id 015018Article in journal (Refereed)
    Abstract [en]

    High-pressure microfluidics offers fast analyses of thermodynamic parameters for compressed process solvents. However, microfluidic platforms handling highly compressible supercritical CO2 are difficult to control, and on-chip sensing would offer added control of the devices. Therefore, there is a need to integrate sensors into highly pressure tolerant glass chips. In this paper, thin film Pt sensors were embedded in shallow etched trenches in a glass wafer that was bonded with another glass wafer having microfluidic channels. The devices having sensors integrated into the flow channels sustained pressures up to 220 bar, typical for the operation of supercritical CO2. No leakage from the devices could be found. Integrated temperature sensors were capable of measuring local decompression cooling effects and integrated calorimetric sensors measured flow velocities over the range 0.5-13.8 mm/s. By this, a better control of high-pressure microfluidic platforms has been achieved.

  • 16.
    Andersson, Martin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Klintberg, Lena
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Fracture strength of glass chips for high-pressure microfluidics2016In: Journal of Micromechanics and Microengineering, ISSN 0960-1317, E-ISSN 1361-6439, Vol. 26, no 9, article id 095009Article in journal (Refereed)
    Abstract [en]

    High-pressure microfluidics exposes new areas in chemistry. In this paper, the reliability of transparent borosilicate glass chips is investigated. Two designs of circular cavities are used for fracture strength tests, either 1.6 mm wide with rounded corners to the fluid inlets, or 2.0 mm wide with sharp inlet corners. Two kinds of tests are done, either short-term,e.g. pressurization to fracture at room temperature, or long-term, with fracture at constant pressurization for up to one week, in the temperature region 11–125 °C. The speed of crack fronts is measured using a high-speed camera. Results show fracture stresses in the range of 129 and 254 MPa for short-term measurements. Long-term measurements conclude the presences of a temperature and stress dependent delayed fracture. For a reliability ofone week at 11–38 °C, a pressure limit is found at the lower end of the short-term measurements, or 15% lower than the average. At 80 °C, this pressure limit is 45% lower. Crack speeds are measured to be 10−5 m s-1 during short-term fracture. These measurements are comparable with estimations based on slow crack growth and show that the growth affects the reliability of glass chips. This effect is strongly affected by high temperatures, thus lowers the operating window of high-pressure glass microfluidic devices.

  • 17.
    Andersson, Martin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Klintberg, Lena
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    High pressure glass microfluidics for supercritical CO2 with aqueous solutions2016Conference paper (Refereed)
    Abstract [en]

    A microfluidic system is presented to investigate interactions between supercritical CO2 and H2O using high-pressure glass chips. The reliability of these chips at pressures necessary to sustain CO2 in the supercritical phase is dependent of both time and temperature. 130 bar can be kept at 38°C for more than a week. These systems can be used to investigate fluid interaction between supercritical CO2 and aqueous solutions by the addition of pH sensitive dye and high speed absorption light imagining, making it possible to demonstrate acidification is in a multiphase chip. By the addition of integrated temperature sensors, better control of the states of the fluids inside the chips can be achieved.

  • 18.
    Andersson, Martin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Klintberg, Lena
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    High-Speed Imaging Of The ph Drop In Aqueous solutions In Contact With Supercritical Co2 Segments2016Conference paper (Other academic)
    Abstract [en]

    A high-speed imaging system based on light absorption of bromophenol blue (BPB) pH sensitivedye in a glass high-pressure microchip is used to study the instantaneous dynamics of a pH drop in anaqueous phase in contact with segments of subcritical (liquid) and supercritical CO2. The dynamics ofthe pH-drop has been studied and visualized, demonstrating acidification rates of up to 3.5 pH/s.

  • 19.
    Andersson, Martin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Knaust, Stefan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Ogden, Sam
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Bodén, Roger
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Integrated high-pressure fluid manipulation in microfluidic systems2014Conference paper (Other academic)
  • 20.
    Andersson, Per
    Uppsala University, University Administration. Kansliet för naturvetenskap och teknik.
    Engineering Education and Active Students2006Conference proceedings (editor) (Refereed)
  • 21.
    Andersson, Peter
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Holcombe, Scott
    OECD Halden Reactor Project.
    Feasibility Study of Using Gamma Emission Tomography for Identification of Leaking Fuel Rods in Commercial Fuel Assemblies2017Conference paper (Refereed)
  • 22.
    Andreas, Jonsson
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
    Roos, Arne
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
    Simulations of the energy performance of smart windows based on user presence using a simplified balance temperature approachIn: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178Article in journal (Other academic)
    Abstract [en]

    In this paper a simulation tool for simulating and comparing windows have been further developed so that the software also can simulate smart windows with the ability to vary the g-value or the solar heat gain coefficient. The g-value can be controlled using different control strategies, which can be based on time control, user control and different types of daylight control. The software is basically a simulation tool to calculate the energy for heating and cooling caused by the windows as a building component. Due to the simplicity of the program, it is suitable as a tool for selecting the right type of window for a certain building. Six different control strategies have been developed to show different approaches for controlling smart windows. Some results are shown as examples of how the new functionality is working. This new functionality of the software makes it easy to compare smart windows between themselves and also to make fair comparisons with static windows.

  • 23.
    Andreasson, Rebecca
    et al.
    Högskolan i Skövde, Institutionen för informationsteknologi.
    Lindblom, Jessica
    Högskolan i Skövde, Institutionen för informationsteknologi.
    Thorvald, Peter
    Högskolan i Skövde, Institutionen för ingenjörsvetenskap.
    Distributed Cognition in Manufacturing: Collaborative Assembly Work2016In: Advances in Manufacturing Technology XXX / [ed] Yee Mey Goh, Keith Case, IOS Press , 2016, p. 243-248Conference paper (Refereed)
    Abstract [en]

    Cognitive science is becoming increasingly central within humanfactors and ergonomics (HF&E) and there has long been a call for a more systemicperspective in the area with a somewhat broader unit of analysis. This paperpresents a case study applying the theoretical framework of distributed cognition(DCog), which shows how DCog would offer a more complete understanding ofmanufacturing within its greater context, including the social, cultural, andmaterial surroundings. This paper aims to characterize and analyse dock assemblyof forest machines as a complex socio-technical system from a DCog perspective;focusing on the creation of enacted landscapes in this particular setting. The paperalso exemplifies benefits of using the DCog framework in the manufacturingdomain as a way of grasping the assembly workers’ tacit competence and skills.

  • 24.
    Andreasson, Rebecca
    et al.
    Högskolan i Skövde, Institutionen för informationsteknologi.
    Lindblom, Jessica
    Högskolan i Skövde, Institutionen för informationsteknologi.
    Thorvald, Peter
    Högskolan i Skövde, Institutionen för ingenjörsvetenskap.
    Interruptions in the wild: portraying the handling of interruptions in manufacturing from a distributed cognition lens2017In: Cognition, Technology & Work, ISSN 1435-5558, E-ISSN 1435-5566, Vol. 19, no 1, p. 85-108Article in journal (Refereed)
    Abstract [en]

    This paper presents a study examining interruptionsin the wild by portraying the handling of interruptionsin manufacturing from a distributed cognitionlens. By studying how interruptions occur and are handledin the daily activities of a work team at a large foundry forcasting heavy diesel engines, we highlight situations whenthe propagation, transformation, and representation ofinformation are not supported by prescribed work processesand propose recommendations for how this can beamended. The study was conducted by several visits to theaforementioned factory with cognitive ethnography as thebasis for the data collection. The focus was on identifyinginterruptions and analysing these through a distributedcognition framework as an initial step towards studyinginterruptions in a manufacturing environment. The keyfindings include the identification of three, previouslyundefined, types of interruptions and the conclusion thatinterruptions do indeed affect the distributed workload ofthe socio-technical system and thus the overall productionperformance at the casting line.

  • 25.
    Arfwedson, Pontus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Signals and Systems Group.
    Creating a usable analysis application built on an existing visualization platform2017Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The advances in research on wireless communications has lead up to the current success of 4G mobile broadband and is currently focusing on designing the upcoming even more advanced fifth generation (5G) networks. The type of research behind this typically generates large quantities of data and requires efficient analysis in order to achieve tangible results. To enable this analysis, visualization of the data is used to give the researchers the needed insights. For this master thesis project an existing platform will be analyzed with the goal of, by utilizing the platform, creating a powerful, useful analysis application with the necessary and desired tools. The platform can access data produced from research simulations and visualize them through different types of useful charts. However, it has up until now lacked some important functionality, mainly letting the user modify and alter the visualization to aid in the analysis. It furthermore requires knowledge and experience before being useful. To solve this, there existed a need of extending the platform with new tools and functionality to give the user more control and possibilities and to simplify the usage. The thesis resulted in a functioning analysis application that gives the user many necessary features to effectively analyze data. The result fulfilled the set requirements with improved and added views, extended tools and optimized performance.

  • 26.
    Arfwedson, Pontus
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Berglund, Joel
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Inomhuspositioneringssystem: Utvecklande av server-funktionalitet, klient-kommunikation och en grafikmotor2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The projects goal was to make an already existing indoor positioning system useful forthe average smartphone user. This was achieved by creating an Android applicationwhich, along with a running server, continuously presents the user with all the currentneeded information. It uses the graphics engine andEngine to create the graphical userinterface. The application was created in the development environments Eclipse andAndroid Studio.

  • 27.
    Aslan, Zeynep
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    The Turkish International Roll-on/Roll-off Industry: Analysis of the Industry and the Strategies of the Companies on the European Lines2017Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Ro-ro transportation is a type of short-sea shipping where the wheeled cargo is transported by ro-ro (roll-on/roll-off) vessels.This transportation type is different than other sea shipping transportations such as container shipping. The international ro-ro industry between Turkey and Europe has grown significantly in the past decades mostly due to the problems that Turkish international freight operators faced on the land routes through European countries. Currently, there are three companies operating ro-ro on the European lines; U.N. Ro-Ro, Alternative Ro-Ro and Ulusoy Ro-Ro. U.N. Ro-Ro is the market leader with 65% market share and is also the fourth largest ro-ro operator in terms of capacity in lanemeters. Alternative Ro-Ro is the second largest ro-ro operator with 23% market share and Ulusoy Ro-Ro is the third with 12%. The companies emerged at different times in the market with different resources and strategies. Through archival studies and interviews, this thesis focuses on the analysis of the ro-ro industry with PESTLE Analysis and Michael Porter’s Five Forces and the strategies of the existing ro-ro operators in the market. PESTLE Analysis presented that factors that affect export and import volumes such as political and economical factors affect the ro-ro industry the most. Porter’s Five Forces Analysis presented that the power of buyers, the threat of land transportation as substitute and rivalry are high, the power of suppliers is medium, and the threat of new entrant and container shipping as substitute are low. The most commonly used strategies are differentiation, diversification, alliance and specialization strategies.

  • 28.
    Bahceci, Ertin
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Numerical simulation of the linearised Korteweg-de Vries equation: Diploma work (15 HP) Uppsala University Division of scientific computing2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The first main focus in the present project was to analyse the boundary treatment of the linearised Korteweg-de Vries equation. The second main focus was to derive a stable numerical solution using a high-order finite difference method. Since the model involved a third derivative in space, the numerical treatment of the boundaries was highly nontrivial. To aid the boundary treatment high-order accurate first and third derivative finite difference operators were employed. The boundaries are based on the summation-by-parts (SBP) framework, thereby guaranteeing linear stability. The boundary conditions were imposed using a penalty technique. A convergence study was performed where the derived numerical solution was compared with an analytical one. Fourth order accurate Runge-Kutta was used to time-integrate the numerical approximation. Measuring the rate of convergence, q, yielded q = 4 for 4th order accurate SBP-operators and q = 5.5 for 6th order accurate SBP-operators. Thus the convergence study proved the accuracy and stability of the numerical solution derived with the SBP-methodology.

  • 29.
    Bahtic, Ena
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
    Jämförelse av reningsmetoder för tvättvatten från bussar2018Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Alla fordonstvättar för Stockholms bussar i kollektivtrafiken har olika varianter på efterföljande vattenrening. Trafikförvaltningen önskar prova en ny sluten reningsmetod som inkluderar en indunstare som koncentrerar föroreningar och avdunstar vattnet för i princip 100 % vattenrecirkulation. Arbetets syfte är därmed att jämföra den slutna reningsmetoden med de tre nuvarande reningsmetoder som har en vattenrecirkulation på 80 %. En av de nuvarande metoderna består av biologisk rening med efterföljande poleringssteg, den andra av hydrocykloner med efterföljande elektroflockation och den tredje av ozonrening. Jämförelse baserades på för-och nackdelar utifrån reningsresultat, drift, underhåll, drift-och underhållskostnader samt livscykelkostnader.

    Studien visade att en sluten metod med indunstning genererar en högre avskiljning av föroreningar och återanvänder allt renat vatten till tvätthallen, på så vis belastas inte det kommunala spillvattennätet. För den biologiska reningen och elektroflockationen finns en tydlig tendens för överskridande av utsläpp av zink. För elektroflockationen finns även en tendens för överskridande av uppsamlad halt bly, nickel och krom.Indunstningen medför också en del högre kostnader. Grundinvesteringen är upp till fem gånger så stor och elförbrukning upp till sex gånger dyrare jämfört med de nuvarande reningsmetoderna.

    Indunstningen medför en högre energiförbrukning men genererar överskottsvärme som upp till 80 % kan återföras via fläktluftvärmare för att värma upp tvätthallen. Uppvärmning att tvätthallar är den mest kostsamma energiförbrukning på bussdepåerna och på så vis kan den kostnaden minska väsentligt.

    Totala kostnader för maskinutrustningarnas livslängd beräknades utifrån nuvärdesmetoden som räknar om alla betalningar över tid till tidpunkten vid investeringen. Livscykelkostnaden visade sig vara lägst för ozonrening främst då metoden inte kräver några större driftkostnader. Den mest kostsamma livscykelkostnaden var för den biologiska reningen. Det fanns dock indikationer på att vattenrecirkulationen inte fungerar som den ska då färskvattenförbrukning var den dyraste driftparametern.

  • 30.
    Bakhtiar Hama, Botan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Effektivare arbetsform med rötter i Lean Construction: En fallstudie av NCC Projektstudio2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • 31.
    Barck, Ivan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Lind, Joar
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Jansson, Christian
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Crowdfunding i start up-företag: En fallstudie om delägarbaserad crowdfunding som finansieringsmetod2015Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This study was performed to examine the performance of an equity based crowdfunding campaign, as well as seeking to describe the risks, complications and the opportunities that this kind of funding brings. The study was conducted by an empirical case study of a company that was about to initiate an equity based crowdfunding campaign.

    The conclusion is that the planning of an equity based crowdfunding campaign is time consuming and requires knowledge in many different areas. Therefore it is important to identify in which areas skills and resources already are available within the company, and where it must be obtained through a learning process.

    The report also highlights that equity based crowdfunding, because of legal restrictions surrounding the issue of unlisted shares, can not be marketed as other types of crowdfunding. This leads to the conclusion that those who invest in equity based crowdfunding do not necessarily belong to the crowd that crowdfunding is generally associated with. Arguments can be made that this crowdfunding model rather resemble traditional angel networks.

    A technical study was also made about the company's products. The result of the technical study can be used by customers to get a clearer understanding of the company's products, but also by the company itself as a good insight into how their products work in practice and to develop the existing products.

  • 32.
    Bashir, Hussam
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
    Calculation of Wave Propagation for Statistical Energy Analysis Models2015Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis investigates the problems of applying Statistical Energy Analysis (SEA) tomodels that include solid volumes. Three wave types (Rayleigh waves, Pressure wavesand Shear waves) are important to SEA and the mathematics behind them is explainedhere. The transmission coefficients between the wave types are needed for energytransfer in SEA analysis and different approaches to solving the properties of wavepropagation on a solid volume are discussed. For one of the propagation problems, asolution, found in Momoi [6] is discussed, while the other problem remains unsolveddue to the analytical difficulties involved.

  • 33.
    Bekteshi, Fatbardha
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Förbättringsarbete inom rollfördelning2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    After the chosen organization has undergone a major reorganization, it is well-being today. The reorganization involed cuts in personnel and closure of productions. After the reorganization, tasks, projects and roles were left without resources. After the organization, it is prosperous today. The organization is no longer in the survival phase, but the reorganization has not stopped to stabilize after the survival phase. Stabilizing the organzation requires leadership, communication, projects and processes for the role-sharing improvement area. During the study, it was possible to conduct seven interviews, two observations and document collection. The distribution of roles is about revealing that employess go into each other's areas or tasks despite the processes that show the boundaries between the different areas. It creates unclear roles, boundaries between work areas and communication shortages. The study presents a survey of the selected organization's current situation and improvement proposals as well as implementation plan. 

  • 34.
    Bergens, Simon
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Informatics and Media. Gotland University, Department of Software Engineering.
    Frykengård, Pontus
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Informatics and Media. Gotland University, Department of Software Engineering.
    Skräppost eller skinka?: En jämförande studie av övervakade maskininlärningsalgoritmer för spam och ham e-mailklassifikation2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Spam messages in the form of e-mail is a growing problem in today's businesses. It is a problem that costs time and resources to counteract. Research into this has been done to produce techniques and tools aimed at addressing the growing number on incoming spam e-mails. The research on different algorithms and their ability to classify e-mail messages needs an update since both tools and spam e-mails have become more advanced. In this study, three different machine learning algorithms have been evaluated based on their ability to correctly classify e-mails as legitimate or spam. These algorithms are naive Bayes, support vector machine and decision tree. The algorithms are tested in an experiment with the Enron spam dataset and are then compared against each other in their performance. The result of the experiment was that support vector machine is the algorithm that correctly classified most of the data points. Even though support vector machine has the largest percentage of correctly classified data points, other algorithms can be useful from a business perspective depending on the task and context.

  • 35.
    Bergkvist, Mikael
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
    Roos, Arne
    Ribbing, Carl G
    Anomalies in integrating sphere measurements on structured samples1988In: Applied Optics, ISSN 0003-6935, E-ISSN 1539-4522, Vol. 27, no 18Article in journal (Refereed)
  • 36.
    Berglund, Martin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Persson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Thornell, Greger
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    A High-Performance Microplasma Source for Highly Sensitive and Robust Gas Analysis2014In: Proc. of Micronano System Workshop 2014, Uppsala, Sweden, May 15-16, 2014, 2014Conference paper (Other academic)
  • 37.
    Bergqvist, Isabelle
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    First Impressions Last: Ett förbättringsarbete av introduktionsprocessen hos Sandviken kommuns Servicekontor2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The induction process creates a first impression of the organisation and have a great importance regarding new employees’ comfort at work. An inadequate or seemingly absent induction process for new hires can therefore be vital regarding if the person choose to stay in the organisation or look for other alternatives. In the pre study a survey was conducted at Servicekontoret, Sandviken municipality. The purpose of the survey was to find out why Servicekontoret had a hard time finding and retaining new employees. The survey showed that Servicekontorets poor induction program of new employees was the main reason. The purpose of this study was to create and implement a digital induction program with routines.

    To enable to map the current state and identify potential improvements, eight interviews, one observation and one document collection were conducted. The result was analysed against a framework based on Human Resource Management (HRM) and Total Quality Management (TQM). The analyse proved that Servicekontorets induction program was characterized by individualized socialization tactics rather than institutionalized socialization tactics. A negative result since research has shown that employees tend to experience more positive job attitudes, higher levels of fit, and lower levels of turnover after they go through institutionalized socialization tactics compared with those who undergo individualized tactics.

    Based on previous research, the new induction program was designed according to institutionalized socialization tactics. The program has also been designed based on diversity strategies and new routines have been developed, including following up on new hires. Finally, the program has undergone a quality assurance based on TQM. 

    It is important to keep in mind that quality management is an ongoing work rather than project management with a definite beginning and end. The new induction program creates a good first impression of Servicekontoret, but it is not enough to ensure that new employees will stay in the organisation. It is now up to Servicekontoret to administer the result from this study and continue improving the induction.

  • 38.
    Bernspång, Josefina
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Möjligheter, behov och strategi för företagsetableringar inom High Voltage Valley2013Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The structure of the thesis is based on opportunities to attract businesses to the region, the need of establishments in the region and benchmarking with establishment strategies of other cluster initiatives. The identified opportunities are the local business relationship with ABB, the prerequisites of life quality in the region and the availability of financial support. Further on has a number of opportunities to be developed been identified; diversification of the existing businesses, an expansion of the cooperation with universities and to simplify the contact with local authorities. Challenges that HVV is facing is: creating a more dynamic labor market, secure long-term labor supply, spread the image of the brand HVV and finally putting HVVs geographic scope. Two of the identified needs of establishments are strategically important: to establish a third-party logistician and commercializing systems for distributed generation and energy storage. Strategically HVV should identify their core areas and limiting operations to areas with strong growth potential.

  • 39.
    Bertholds, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    CFD Simulations of the New University of Sydney Boundary Layer Wind Tunnel2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Using Computational Fluid Dynamics Simulations, the flow in the new University of Sydney closed circuit wind tunnel has been analyzed prior to the construction of the tunnel. The objective was to obtain a uniform flow in the test section of the wind tunnel while keeping the pressure losses over the tunnel as low as possible. This was achieved by using several flow-improving components such as guide vanes, screens, a honeycomb and a settling chamber. The guide vanes were used in the corners and in the diverging part leading into the settling chamber, giving a significant improvement of the flow as they prevent it from taking undesired paths. The settling chamber is used to decelerate the flow before it is accelerated when leaving the settling chamber, a process which reduces the turbulence in the flow. Screens were used in the settling chamber to further improve the flow by imposing a pressure drop which evens out differences in the flow speed and reduces the turbulence. The honeycomb, which is situated in the end of the settling chamber, makes the flow more uniform by forcing it to go in only one direction. A uniform flow was obtained using three screens and one honeycomb together with the guide vanes and the settling chamber.

  • 40.
    Bertilsson Forsberg, Petter
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Collaboration in practice: A multiple case study on collaboration between small enterprises and university researchers2018Doctoral thesis, monograph (Other academic)
    Abstract [en]

    University-industry collaborations (UICs) have been hailed as key for Sweden's innovativeness and economic growth. Similarly, building research and innovation policies for the promotion of collaboration between universities and industry have become a cornerstone for many other European countries.

    In academic literature there has been an emphasis on efficiency, facilitation, effects and values obtained in UICs. They have been widely studied, both in terms of the reasons why they are formed, their structure and the effects they create, but not much in terms of how they work on a daily basis. There is less attention in the literature to analyse or problematise how UIC work is carried out when a connection has already been formed or is repeatedly enacted. Additionally, there is also a lack of studies looking at small firms UICs. Through identifying a lack of perspective in the UIC literature this thesis builds on the recent developments in practice theory in addressing some of the gaps found. It thus analyses these collaborations from a perspective not present in the literature in pursuit of how UICs are carried out.

    Through four embedded case studies between small enterprises and university researchers the thesis questions some of the assumptions made in the UIC literature and policy documents. First of all, through the practice theory lens, the thesis shows how the creation of a node/linchpin, a boundary object or a broker, between university and industry is instrumental in enabling collaboration work to take place. Secondly, being able to work together successfully does not equal outcomes sought after by policy organisations. Nevertheless, a general conclusion is that there were valuable outcomes for both the companies and the researchers, confirming previous research on UICs. But, these benefits were often difficult to put into clear numbers or metrics and appeared only after a very long time.

    The thesis argues that policy (and associated organisations) should promote the connection between a research site/practices and a company site/practices rather than pushing for a joint practice. In such a way UICs can be valuable for both researchers and companies. 

  • 41.
    Bertilsson Forsberg, Petter
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Collaborative practices and the temporal space between science and business2015Conference paper (Refereed)
  • 42.
    Bertilsson Forsberg, Petter
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Severinsson, Kristofer
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Exploring the virus metaphor in corruption theory: Corruption as a virus?2015In: Ephemera : Theory and Politics in Organization, ISSN 2052-1499, E-ISSN 1473-2866, Vol. 15, no 2, p. 453-463Article in journal (Refereed)
  • 43.
    Björklund, Andreas
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Ljunggren, Viktor
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Förbättring av ritningshantering hos ABB Industrial Automation Control Technologies2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Cost of poor quality describes what the lack of quality costs an organization. By understanding what the concept is and how it can be translated into a specific organization, it creates the conditions for eliminating them, and it can generate a saving of up to 30% of the organization's turnover.

    The study has been carried out at ABB Industrial Automation Control Technologies in Västerås within the group ABB AB. This work has focused on visualizing the problem and how it could be attacked. The purpose of the thesis is, "… to generate evidence about the management of drawings, as well as to propose measures that can improve this process. The aim is also to help ensure that there is a process where suppliers always produce based on the right and most recent edition. "

    The processes of drawing management have been visualized based on information from interviews, observations and secondary data that have been based on information from routines together with governing documents. Thereafter, deficiencies in this drawing management process have been identified and also the causes.

    The result from the thesis is a process mapping with identified shortcomings and the causes of these. A specification has been prepared for guidelines on how ABB Industrial Automation Control Technologies will work with improvements on this process.

  • 44.
    Borg, Emma
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Förutsättningar för lyckade projekt i komplexa miljöer: En studie om projektkomplexitets inverkan på kvalitetsarbete2018Independent thesis Advanced level (professional degree), 20 HE creditsStudent thesis
    Abstract [en]

    Studies show that the success of a construction project depends onits initial design work. Thus, it’s interesting to investigate howensuring design work quality is done. Since the mid 70’s SKB has worked on how the final repository of spent long-lived nuclearfuel should be built to satisfy the requirement of total repository from the people and environment for a period of 100,000 years. The project is large and consists of many subprojects; where one of them is carried out by WSP. The quality work in this project has been evaluated to see how the ensuring of reaching required quality and expectations.

    This type of project can be assumed to be complex both to control and execute, in terms of structural complexity, technical complexity and uncertain complexity. By characterizing the project due to its surroundings, content and organizational behaviour and to them apply the dimensions of complexity the aim of the study is to identify how the complexity has effect the quality work. To understand this, semi structured interviews with the project organization has been done.

    The result of the study shows that especially the structural complexity, mainly by the number of collaborated departments, affects the quality work. Also uncertain complexity affects the quality work, due to unclear contract between client and supplier. To receive better quality work in the future the coordination between different departments needs to be better. This involves for example establish project specific methods and routines, for all in the project to use. To be able to deliver successful projects one presumption is that client and supplier agreed on what is to be delivered. If the project scope isn’t clear agreedupon, a satisfied client can never be reached.

  • 45.
    Brecheisen, Sverre
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    From, Richard
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Marknadsundersökning inom datacenterbranschen: Undersökning av tekniska inköp, med fokuspå kyllösningar2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to examine how investments are justified in the Swedish data center industry, with a focus on cooling equipment. This is achieved through semi-structured interviews with 20 different interviewees. These interviewees represent different facets of the industry and facilitate an understanding of which factors, such as: investment costs, operating costs, reliability, environmental impact and the influence of external and internal actors, come into play and to which degree they impact the investment decision-making process. The results show that primarily low operating cost in the form of low energy consumption is the driving factor when it comes to the procurement of new equipment. A lower environmental impact is a positive side-effect of lower energy consumption. But alone it does not justify an additional investment. Data center downtime has a negative impact financially and can also adversely affect various functions critical to society. Therefore, the dependability of the equipment is still a priority, but reliability is now considered to have reached such a level that it is considered acceptable and the focus of development has shifted towards energy efficiency.

    The interview study is complemented by an investment-theory review of articles and books on related subject matter. This subject matter is linked directly or indirectly to disposition of investment in the data center industry. The framework developed from the review is then compared to the interview results. Results indicate that decision and investment theory in many cases can also be applied to data center investments. Theories that are more environmentally and socially oriented, such as Triple Bottom Line, are not consistent with the empirical data from the interviews. The investment decisions are also influenced by the current high availability and high reliability of data centers, which is the reason why the industry is rife with inertia, conservatism and skepticism to new solutions. Consequently, the parallel between data centers and high risk organizations, HRO, brought a new approach to how priorities are evaluated within HROs, namely that it is possible to combine high reliability with a low environmental impact.

    The results of the study are used as the basis to establish a marketing plan for the company SEE Cooling, a startup company that supplies cooling equipment. This marketing plan is based on the models for: Network analysis, Porter's five forces analysis, SWOT analysis and Kotler's marketing mix. The resulting marketing plan offers proposals on how SEE Cooling shall navigate their business network to overcome conservatism and promote their products, and illustrates potential difficulties.

  • 46.
    Bäck, Linda
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Analys av kvalitetsbristrapporter vid en tillverkande industri: En fallstudie utförd i enlighet med Sex Sigmas projektmetodik DMAIC2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The thesis has been carried out in a manufacturing industry with high quality requirements both from customers and national regulatory frameworks for medical devices. To meet these requirements the site is certified by ISO 9001, ISO 13485 and ASME as well as they continuously work by the principles of Lean and Six Sigma. For different types of defects in the production, such as quality defects on materials, non-conformance reports are established for monitoring, analyzing and statistical logging the problems. Monitoring is done on supplier and item level. However there is no analyzing or monitoring of the type of quality problems. A deeper statistical analyze of various types of defects according to Six Sigma and DMAIC has therefore been seen as relevant to this study. The questions "What types of defects contribute to the largest internal quality costs according to rework and scrap?" "What are the root causes to the defects?" and "Which root causes requires the least resources to be eliminated, while giving the most positive impact if they are?" form the basis of this work. 

    The study has been made in accordance to DMAIC. Various methods and tools from the improvement program Six Sigma has been used for collecting, processing and analyzing data. The methods used for collecting data was collection from database, literature studies, interviews, and observations. The methods used for analyzing data was stratification, triangulation and DMAIC. The tools used was the Kano model, CTQ-analysis, Pareto chart, check sheet, flowchart, bar graphs and cause-effect diagram based on 7M. 

    The results that occurred was that different types of defects in form of indentations or chipped metal items, scratches on plastic and glass tubes as well as scratches on metal items account for the largest proportion of internal quality costs in the form of scrap and rework on avd2. On avd1 the cause of defects that account for the largest proportion of internal costs in the form of scrap and rework does not appear just as clearly. The root causes identified to the occurrence of the defects is insufficient 5S on avd2 as well as in the inventory. Suggestions to the organization for eliminating the root causes are: 

    Short-term solutions: Sort, organize and clean, mostly in assembly halls, to remove all unnecessary items and free space. The storage of steel items should be reviewed as well as how the material is presented for the assemblers.  

    Long-term solutions: A continuous work with 5S, both inside the assembly halls and in the warehouse. Work in accordance with a pull-system instead of today's push-system. 

  • 47.
    Carlstedt, Rikard
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Utvärdering av datorprogram för användning vid dagvattenutredningar2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The main object of this diploma work thesis is about how computer programs can be

    a tool to use for work on stormwater investigations. The advantage of using a

    computer program compared with calculations made by hand is evaluated and

    discussed. The computer programs that have been used for studies and a sequence of

    testing of the possibilities are Autodesks Storm and Sanitary Analysis and DHIs Mike

    Urban.

    Focus on sustainable development now permeates the building industry. As a result

    stormwater investigations have been conducted in an increasing extent the recent

    years. Stormwater is water produced due to precipitation, such as rain and snowmelt.

    Stormwater investigations normally contain descriptions of existing land use, planned

    land use and suggestions of measures and technical solutions for the future disposal of

    stormwater.

    The initial part of the thesis consisted of literature studies on stormwater and

    stormwater investigations to understand the science. Further literature studies

    where related to hydraulic and hydrologic modeling. An analysis of the interest and

    way of applying these methods among municipalities and sewer companies where

    performed. Literature studies and situation analysis formed the basis for the design of

    the evaluation methodology where a number of key points were chosen and

    followed-up for both programs.

    The results of the thesis shows that there is a big advantage in using computer

    simulations for accurate mapping of the pipe networks provided that you also have

    the means to calibrate the hydrologic and hydraulic models. For less accurate

    analyzes, computer programs may be seen as a tool for data management.

  • 48.
    Clevehorn, Lovisa Paula
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Sustainability in hospitality: A case study of hotel Galomar2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Newly refurbished Galomar opened in the summer of 2018 and is awarded the first self-sufficient hotel in Madeira Island out of renewable energy sources. The hotel management is highly engaged in sustainability and therefore wants to ensure that they are doing everything achievable to be as sustainable as possible. The purpose of this report was to identify and analyse the environmental and sustainability work performed at hotel Galomar. The basis for identification was performed through a simplified life cycle assessment. Analysis was performed using the corner stone model, the United Nations seventeen sustainability goals and quality management tools such as: GAP-analysis, SWOT and 10M. The methodologies used to collect data was primarily qualitative through observation of hotel Galomar and interviews with guests staying at the hotel. Results show that the hotel primarily works to provide to sustainability in hospitality through engaged management, energy management system, advanced water system, inclusion of employees and guests and different activities to contribute to the local community. Results also show that there is a competitive advantage for a hotel to work with sustainability since this is something that is more and more desired and required by today’s travellers. Tourism is in a very special position to benefit from local communities, socially and economically, and to raise awareness and support for preservation of the environment. Within the tourism sector, economic development and environmental conservation should not be seen as opposing forces- they should be pursued hand in hand as aspirations that can and should be mutually reinforcing.

  • 49.
    Cullen, Sophia
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Causes and effects of suburban traffic dynamics: A case study in a municipality close to Munich2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The current transportation infrastructure in most cities and municipalities is not designed to cope with the continually increasing volume of traffic, especially during rush hours. Furthermore, in many cases, the increasing pressure has not yet been adequately compensated by sufficient expansion. The dynamic nature of this problem makes it very challenging to solve. Therefore, the purpose of this work is to investigate the causes and effects and their dynamics of the increasing strain on transportation infrastructure in suburban municipalities. This research is necessary in order to determine what needs to be changed to reduce traffic congestion effectively. Moreover, this study assesses the expectations of commuters regarding mobility. It is essential to take their opinions into account, as they are a significant cause of traffic congestion. Therefore, they need to accept any implemented solution in order to ensure a high adoption rate. In the process, the dynamics of the system and the opinions of commuters result in conceptual solutions aimed at improving the traffic situation in the long term.

     

    The research involved conducting a single case study in a suburban municipality of the German city of Munich. In the course of this research, primary data was collected by means of a commuter survey and secondary data was also provided from an existing household survey. Moreover, empirical data was collected through a literature review as well as from numerous recognised online sources. The causes and effects of traffic dynamics were analysed by considering traffic as a system using Systems Thinking and System Dynamics methodology. The interrelated variables were visualised by creating a Causal Loop Diagram and drawing conclusions from it. In addition, conceptual solutions were developed by reviewing the works of previous researchers and taking into account the results from the System Dynamics analysis. The results of the commuter survey also played a crucial role in ascertaining the commuting habits and expectations of commuters regarding the transportation infrastructure.

     

    The analysis of the Causal Loop Diagram revealed that in order to reduce traffic congestion, road expansion alone is not a viable solution due to rebound effects, which eventually result in increased car use and hence more traffic congestion. Therefore, in order to solve the problem in the long term, car use needs to be reduced to a significant degree. This can be achieved by implementing various solutions to nudge people towards using alternative modes of transport. Various pricing techniques such as free public transport are a possible method of approaching this topic. Furthermore, improving public transportation services and infrastructure using digitalisation and centralising various alternative modes of transport are among a number of appropriate ways of effectively reducing the traffic congestion problematic studied in this project. Hereby, the method of Change Management, usually used within organisations, can be applied to change the behaviour of society.

  • 50.
    Davis, Matthew
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Commercialisation of Alternative Energy Technologies: A Case Study2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
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