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Att bidra till välgörenhet sträcker sig flera århundraden tillbaka i tiden. Världen står än i dag inför stora utmaningar som humanitära kriser, klimatförändringar och politiska konflikter, som kan behöva stöd i form av bidrag när statliga medel inte räcker till. Här spelar välgörenhetsorganisationerna en viktig roll. Många av välgörenhetsorganisationerna är etablerade i dagens digitalisering, vilket också ökar konkurrensen om det digitala givandet från användarna. Syftet med studien var att ta reda på vad som engagerar användare till att bidra digitalt till välgörenhet, samt identifiera vilka nyckelfaktorer som är viktiga för engagemanget i interaktionen med digitala välgörenhetstjänster. Studien utfördes i samarbete med en etablerad svensk välgörenhetsorganisation och inkluderade användning av deras tjänst Gåvoshopen i den kvalitativa undersökningen. Välgörenhetsorganisationen riktar sig främst till individer som behöver humanitärt stöd. Genom kvalitativa metoder har semistrukturerade intervjuer utförts tillsammans med användartester av en tjänst för digitalt givande. Eftersom välgörenhet i sig inte är en tjänst utan ett beteende, har studiens arbete inspirerats av det teoretiska ramverket Theory of planned behavior, och kopplat den empiriska datan till teorins tre faktorer, attityd till beteende, subjektiva normer och uppfattad beteendekontroll. Resultaten visade att visuella element så som bilder, textinnehåll och färg, hade en stor inverkan på empatin hos användarna. Designelement som är viktiga nyckelfaktorer till digitalt givande. Navigering och struktur på webbplatsen visade tydliga resultat över hur användarupplevelsen uppfattades, vilket i sin tur gav indikationer på om användarna ville fullfölja sitt digitala givande. Genom studiens resultat har rekommendationer för nya designprinciper tagits fram som kan inspirera andra välgörenhetsorganisationer i deras arbete att öka det digitala givandet från användarna., Contributing to charity dates back several centuries. The world still faces significant challenges today, such as humanitarian crises, climate change, and political conflicts, which may require support in the form of donations when government funds are insufficient. This is where charitable organizations play an important role. A large part of charitable organizations are established in today's digitalization, which also increases competition for digital donations from users. The purpose of this study was to find out what engages users to contribute digitally to charity and identify the key factors that are important for engagement in interaction with digital charity services. The study collaborated with a well-established Swedish charity organization that primarily focuses on individuals needing humanitarian support. The study performed a qualitative study by conducting user tests on one of their services that they offer on their website. Through qualitative methods, semi-structured interviews were conducted along with user tests of a digital donation service. Since charity itself is not a service but a behavior, the study was inspired by the theoretical framework Theory of Planned Behavior and connected the empirical data to the theory's three factors: attitude toward behavior, subjective norms, and perceived behavioral control. The results showed that visual elements such as images, text content, and color had a significant impact on users' empathy. Design elements that are important key factors for digital giving. Navigation and structure on the website showed clear results on how the user experience was perceived, providing indications on whether users wanted to complete their digital donation. Through the study's results, recommendations for new design principles have been developed that can inspire other charitable organizations in their efforts to increase digital donations from users."

Att bidra till välgörenhet sträcker sig flera århundraden tillbaka i tiden. Världen står än i dag inför stora utmaningar som humanitära kriser, klimatförändringar och politiska konflikter, som kan behöva stöd i form av bidrag när statliga medel inte räcker till. Här spelar välgörenhetsorganisationerna en viktig roll. Många av välgörenhetsorganisationerna är etablerade i dagens digitalisering, vilket också ökar konkurrensen om det digitala givandet från användarna. Syftet med studien var att ta reda på vad som engagerar användare till att bidra digitalt till välgörenhet, samt identifiera vilka nyckelfaktorer som är viktiga för engagemanget i interaktionen med digitala välgörenhetstjänster. Studien utfördes i samarbete med en etablerad svensk välgörenhetsorganisation och inkluderade användning av deras tjänst Gåvoshopen i den kvalitativa undersökningen. Välgörenhetsorganisationen riktar sig främst till individer som behöver humanitärt stöd. Genom kvalitativa metoder har semistrukturerade intervjuer utförts tillsammans med användartester av en tjänst för digitalt givande. Eftersom välgörenhet i sig inte är en tjänst utan ett beteende, har studiens arbete inspirerats av det teoretiska ramverket Theory of planned behavior, och kopplat den empiriska datan till teorins tre faktorer, attityd till beteende, subjektiva normer och uppfattad beteendekontroll. Resultaten visade att visuella element så som bilder, textinnehåll och färg, hade en stor inverkan på empatin hos användarna. Designelement som är viktiga nyckelfaktorer till digitalt givande. Navigering och struktur på webbplatsen visade tydliga resultat över hur användarupplevelsen uppfattades, vilket i sin tur gav indikationer på om användarna ville fullfölja sitt digitala givande. Genom studiens resultat har rekommendationer för nya designprinciper tagits fram som kan inspirera andra välgörenhetsorganisationer i deras arbete att öka det digitala givandet från användarna., Contributing to charity dates back several centuries. The world still faces significant challenges today, such as humanitarian crises, climate change, and political conflicts, which may require support in the form of donations when government funds are insufficient. This is where charitable organizations play an important role. A large part of charitable organizations are established in today's digitalization, which also increases competition for digital donations from users. The purpose of this study was to find out what engages users to contribute digitally to charity and identify the key factors that are important for engagement in interaction with digital charity services. The study collaborated with a well-established Swedish charity organization that primarily focuses on individuals needing humanitarian support. The study performed a qualitative study by conducting user tests on one of their services that they offer on their website. Through qualitative methods, semi-structured interviews were conducted along with user tests of a digital donation service. Since charity itself is not a service but a behavior, the study was inspired by the theoretical framework Theory of Planned Behavior and connected the empirical data to the theory's three factors: attitude toward behavior, subjective norms, and perceived behavioral control. The results showed that visual elements such as images, text content, and color had a significant impact on users' empathy. Design elements that are important key factors for digital giving. Navigation and structure on the website showed clear results on how the user experience was perceived, providing indications on whether users wanted to complete their digital donation. Through the study's results, recommendations for new design principles have been developed that can inspire other charitable organizations in their efforts to increase digital donations from users."

Purpose: Vacation house,a part of Sweden ́s history that decreases annually, mainly because existing vacation houses are being extended and permanented and few new ones are being built. One reason why many vacation houses are permanented is that the detailed development plan for the area is insufficient or missing to maintain the area as a vacation house area. In addition to the detailed development plan there is other legislation that is followed at building permits. For vacations houses there is no regulation in the legislation which causes difficulties for building permit management for individuals and authorities. The aim of the survey is to gather material with the aim to establish a definition of vacation houses into the legislation. Method: The survey is conducted as a qualitative study with semi-structured interviews with nearby municipalities building permit departments, equal in size as Jönköping's municipality and with smaller municipalities. The material from the semi-structured interviews was compared and strengthened with document analysis from previous research. The document analysis has reviewed previous researches, studies, judiciary, books and detailed development plans. Findings: The result shows that a definition of vacation houses should be legislated in Plan- och bygglagen and can be applied by Boverket’s building regulations with a clearer explanation of vacation houses. To give municipalities common ground to emanate from to preserve the nature of vacations house areas. How the vacations house areas should be designed and how their design can be preserved is most suitable in the detail development plan. It is in the detail development plan the area of a vacation home can be limited. If the area of the vacation homes is limited, the survey show that it will result in that fewer vacation homes are permanentized as the conveniences which permanent homes require will not fit. Implications: The results of the survey can be used to give municipalit, Syfte: Fritidshusen, en del av Sveriges historia som minskar årligen, främst på grund av att befintliga fritidshus byggs till och permanentas samt att det byggs få nya. En anledning till att många fritidshus permanentas är att detaljplanen för ett område är otillräcklig eller saknas för att behålla området som ett fritidshusområde. Förutom detaljplan är det övrig lagstiftning som följs vid bygglov. För fritidshus saknas en definition i lagstiftningen vilket medför svårigheter för bygglovhantering för privatpersoner och myndigheter. Syftet med studien är att ta fram material som kan utnyttjas för att införa en definition av fritidshus i lagstiftning. Metod: Undersökningen genomförs som en kvalitativ studie med semi-strukturerade intervjuer med närliggande kommuners bygglovsavdelningar, både i jämnstorlek med Jönköpings kommun och med mindre kommuner. Materialet från de semi-strukturerade intervjuerna bearbetades sedan genom att jämföras och stärkas med litteraturstudie från tidigare forskning. Litteraturstudien har granskat tidigare undersökningar, studier, domar, böcker och detaljplaner. Resultat: Resultatet visar att en definition utav fritidshus bör lagstiftas i plan- och bygglagen och kan tillämpas av Boverket med en tydligare förklaring till fritidshus. Detta för att ge kommuner en grund att utgå ifrån för att bevara fritidshusområdens karaktär. Hur fritidshusområden ska utformas och hur dess karaktär kan behållas görs lämpligast i detaljplaner. Det är även i detaljplanen ytan kan begränsas för ett fritidshus. Begränsas ytan för ett fritidshus visar undersökningen att färre fritidshus kommer permanentas då de bekvämligheter en permanentbostad bör ha inte kommer att rymmas. Konsekvenser: Undersökningens resultat kan användas för att ge kommuner förståelse för hur bygglov av fritidshus hanteras i dagsläget av andra kommuner. Studien bidrar med förbättringsförslag för detaljplaner i Jönköpings kommun. Slutsatsen av resultatet är att en mer omfattande studie bör gen

Purpose: Vacation house,a part of Sweden ́s history that decreases annually, mainly because existing vacation houses are being extended and permanented and few new ones are being built. One reason why many vacation houses are permanented is that the detailed development plan for the area is insufficient or missing to maintain the area as a vacation house area. In addition to the detailed development plan there is other legislation that is followed at building permits. For vacations houses there is no regulation in the legislation which causes difficulties for building permit management for individuals and authorities. The aim of the survey is to gather material with the aim to establish a definition of vacation houses into the legislation. Method: The survey is conducted as a qualitative study with semi-structured interviews with nearby municipalities building permit departments, equal in size as Jönköping's municipality and with smaller municipalities. The material from the semi-structured interviews was compared and strengthened with document analysis from previous research. The document analysis has reviewed previous researches, studies, judiciary, books and detailed development plans. Findings: The result shows that a definition of vacation houses should be legislated in Plan- och bygglagen and can be applied by Boverket’s building regulations with a clearer explanation of vacation houses. To give municipalities common ground to emanate from to preserve the nature of vacations house areas. How the vacations house areas should be designed and how their design can be preserved is most suitable in the detail development plan. It is in the detail development plan the area of a vacation home can be limited. If the area of the vacation homes is limited, the survey show that it will result in that fewer vacation homes are permanentized as the conveniences which permanent homes require will not fit. Implications: The results of the survey can be used to give municipalit, Syfte: Fritidshusen, en del av Sveriges historia som minskar årligen, främst på grund av att befintliga fritidshus byggs till och permanentas samt att det byggs få nya. En anledning till att många fritidshus permanentas är att detaljplanen för ett område är otillräcklig eller saknas för att behålla området som ett fritidshusområde. Förutom detaljplan är det övrig lagstiftning som följs vid bygglov. För fritidshus saknas en definition i lagstiftningen vilket medför svårigheter för bygglovhantering för privatpersoner och myndigheter. Syftet med studien är att ta fram material som kan utnyttjas för att införa en definition av fritidshus i lagstiftning. Metod: Undersökningen genomförs som en kvalitativ studie med semi-strukturerade intervjuer med närliggande kommuners bygglovsavdelningar, både i jämnstorlek med Jönköpings kommun och med mindre kommuner. Materialet från de semi-strukturerade intervjuerna bearbetades sedan genom att jämföras och stärkas med litteraturstudie från tidigare forskning. Litteraturstudien har granskat tidigare undersökningar, studier, domar, böcker och detaljplaner. Resultat: Resultatet visar att en definition utav fritidshus bör lagstiftas i plan- och bygglagen och kan tillämpas av Boverket med en tydligare förklaring till fritidshus. Detta för att ge kommuner en grund att utgå ifrån för att bevara fritidshusområdens karaktär. Hur fritidshusområden ska utformas och hur dess karaktär kan behållas görs lämpligast i detaljplaner. Det är även i detaljplanen ytan kan begränsas för ett fritidshus. Begränsas ytan för ett fritidshus visar undersökningen att färre fritidshus kommer permanentas då de bekvämligheter en permanentbostad bör ha inte kommer att rymmas. Konsekvenser: Undersökningens resultat kan användas för att ge kommuner förståelse för hur bygglov av fritidshus hanteras i dagsläget av andra kommuner. Studien bidrar med förbättringsförslag för detaljplaner i Jönköpings kommun. Slutsatsen av resultatet är att en mer omfattande studie bör gen

Syftet med studien är att presentera ett designkoncept för publika diskussioner på nätet med målet att uppnå djupare diskussioner och minska mängden information overload. Arbetet använder metoden Concept Driven Interaction Design (CDID) som går ut på att skapa ett designkoncept utifrån flera olika teorier som appliceras genom interaktionsdesign. Ett designkoncept innehåller tre delar: ett namn, ett syfte och huvudprinciper. CDID innehåller sju steg som arbetet är utformat efter: 1. Concept Generation – Summeras i en tabell som jämför diskussioner i forum (med flera antagande) och diskussioner med hjälp av metoden Philosophy for Children (P4C), samt annan teori. 2. Concept Exploration – Åtta olika designaspekter identifieras utifrån jämförelsetabellen. 3. Internal Concept Critique – Designaspekterna jämförs med två snarlika diskussionsformat. 4. Design of Artifacts – Designkoncept version 1 skapas. 5. External Design Critique – Intervjuer utförs för att undersöka intervjupersonerna generella erfarenheter av online diskussioner, testar antagandena från jämförelsetabellen och ge direkt feedback på första versionen av designkonceptet. 6. Concept Revisited – Ändringar görs baserat på intervjumaterial och direkt feedback. 7. Concept Contextualization – Designkonceptet kopplas tillbaka till litteraturen. Studien resulterar i ett designkoncept kallat CoFramer och stödjer dessa huvudprinciper som ställs i kontrast till material som identifierats genom intervjuerna: Tabell 1: CoFramers huvudprinciper och faktorer från intervjuer om diskussioner på forum. CoFramers huvudprinciper | Från intervjuer om diskussioner på forum Strukturerad början och slut | Diskussion utan tydligt slut Begränsat antal deltagare | Stor mängd deltagare Minimum antal deltagare | Många inaktiva åskådare Explicita deltagare | Lite information om deltagare Gemensamma förutsättningar | Otydlighet kring deltagares förutsättningar Begränsad informationstäthet per inlägg, The focus of this essay is to develop a design concept for online public discussions with deep discussions and low information overload. The method used is Concept Driven Interaction Design (CDID) which involves constructing a design concept by applying a variety of theories in tangible interaction design. A design concept has three basic parts: a name, high-level goals and outlines generic principles. CDID includes seven steps which is used in this work: 1. Concept Generation – Formatted into a table that compare forum discussion (with several hypothesis) compared to discussions with the method Philosophy for Children (P4C) and other theories. 2. Concept Exploration – Eight distinct design aspects are identified from the comparison table. 3. Internal Concept Critique – The design aspects are compared to three similar discussion formats. 4. Design of Artifacts – Design concept version 1 is created. 5. External Design Critique – Interviews are conducted to explore their general experience of online discussions, investigate the hypothesis from the comparison table and to seek direct feedback on the first draft of the design concept. 6. Concept Revisited – Changes are made to the design concept based on the interview material and the direct feedback. 7. Concept Contextualization – The design concept is related to the original literature. The result of the study is a design concept named CoFramer. CoFramer’s generic principles are summarized and contrasted against factors identified from the interview material in this table: Tabell 2: CoFramer’s generic principles and interviews about online discussions. CoFramer’s generic principles | From interview material on forum discussion Organized start and ending | Discussions without clear ending Limited number of participants | Large number of participants Minimum number of participants | Large number of inactive spectators Explicit participants | Low information about participants Common co

Syftet med studien är att presentera ett designkoncept för publika diskussioner på nätet med målet att uppnå djupare diskussioner och minska mängden information overload. Arbetet använder metoden Concept Driven Interaction Design (CDID) som går ut på att skapa ett designkoncept utifrån flera olika teorier som appliceras genom interaktionsdesign. Ett designkoncept innehåller tre delar: ett namn, ett syfte och huvudprinciper. CDID innehåller sju steg som arbetet är utformat efter: 1. Concept Generation – Summeras i en tabell som jämför diskussioner i forum (med flera antagande) och diskussioner med hjälp av metoden Philosophy for Children (P4C), samt annan teori. 2. Concept Exploration – Åtta olika designaspekter identifieras utifrån jämförelsetabellen. 3. Internal Concept Critique – Designaspekterna jämförs med två snarlika diskussionsformat. 4. Design of Artifacts – Designkoncept version 1 skapas. 5. External Design Critique – Intervjuer utförs för att undersöka intervjupersonerna generella erfarenheter av online diskussioner, testar antagandena från jämförelsetabellen och ge direkt feedback på första versionen av designkonceptet. 6. Concept Revisited – Ändringar görs baserat på intervjumaterial och direkt feedback. 7. Concept Contextualization – Designkonceptet kopplas tillbaka till litteraturen. Studien resulterar i ett designkoncept kallat CoFramer och stödjer dessa huvudprinciper som ställs i kontrast till material som identifierats genom intervjuerna: Tabell 1: CoFramers huvudprinciper och faktorer från intervjuer om diskussioner på forum. CoFramers huvudprinciper | Från intervjuer om diskussioner på forum Strukturerad början och slut | Diskussion utan tydligt slut Begränsat antal deltagare | Stor mängd deltagare Minimum antal deltagare | Många inaktiva åskådare Explicita deltagare | Lite information om deltagare Gemensamma förutsättningar | Otydlighet kring deltagares förutsättningar Begränsad informationstäthet per inlägg, The focus of this essay is to develop a design concept for online public discussions with deep discussions and low information overload. The method used is Concept Driven Interaction Design (CDID) which involves constructing a design concept by applying a variety of theories in tangible interaction design. A design concept has three basic parts: a name, high-level goals and outlines generic principles. CDID includes seven steps which is used in this work: 1. Concept Generation – Formatted into a table that compare forum discussion (with several hypothesis) compared to discussions with the method Philosophy for Children (P4C) and other theories. 2. Concept Exploration – Eight distinct design aspects are identified from the comparison table. 3. Internal Concept Critique – The design aspects are compared to three similar discussion formats. 4. Design of Artifacts – Design concept version 1 is created. 5. External Design Critique – Interviews are conducted to explore their general experience of online discussions, investigate the hypothesis from the comparison table and to seek direct feedback on the first draft of the design concept. 6. Concept Revisited – Changes are made to the design concept based on the interview material and the direct feedback. 7. Concept Contextualization – The design concept is related to the original literature. The result of the study is a design concept named CoFramer. CoFramer’s generic principles are summarized and contrasted against factors identified from the interview material in this table: Tabell 2: CoFramer’s generic principles and interviews about online discussions. CoFramer’s generic principles | From interview material on forum discussion Organized start and ending | Discussions without clear ending Limited number of participants | Large number of participants Minimum number of participants | Large number of inactive spectators Explicit participants | Low information about participants Common co

In the field of sustainability, the focus is usually on the economic and environmental realms, while the social realm is getting the less attention compared with other realms. This less concern about the social sustainability has been experienced also locally in UAE, where buildings are leaning towards adopting green design approaches but mainly economically and environmentally sustainable. The social variable in student hostels as a type of buildings and micro-communities at the same time is very essential. In UAE, there is a rare focus given to student hostels. This research aims at investigating the social sustainability design aspects in student hostels in UAE to come up with suggested design guidelines for this type of buildings. To achieve this aim, a conceptual framework for a socially sustainable student hostel design is developed to investigate a case study of a recently developed student hostel at UAE University utilizing a mix of qualitative and quantitative tactics. These research investigations let to answer the main research question of to what extent are the recent existing student hostels being designed to be socially sustainable? It is hoped that the findings of this research are going to help renovating the existing hostels to be more socially sustainable and to design new student hostels in a more socially sustainable manner.

Due to government regulations together with health and safety reasons, there are increasing demands on reducing hazardous polluting chemicals from fossil fuel power plants. Therefore, more efforts are imposed on using renewable resources such as water, wind, solar and tide to produce clean/green electricity. On top of that, there is another increasing demand from Original Equipment Manufacturers (OEMs) to operate power plants with higher load while keep the power loss to the minimum. These requirements drive conventional fluid film bearings to its mechanical and temperature limits. This calls for the development of new bearing system designs. An outstanding tribological performance such as low start-up and break-away friction, excellent resistance to chemical attack and anti-seizure properties, can be achieved by introducing compliant polymer liners. At the same time, bearings with compliant liners may alter rotor-bearing system dynamic behaviour compared to the systems with conventional white metal bearings. The research approach of this thesis is to implement compliant liner on bearing surface, impose synchronous shaft excitation and investigate the effect of bearing design parameters on bearing dynamic response. Plain cylindrical journal bearings with different compliant liner thicknesses were analysed using a FEM approach. The numerical model was compared with an in-house developed code based on the finite difference method (FDM) for a bearing operated at steady state conditions. Results obtained by the numerical models showed good agreement. After verification of the numerical model for fixed geometry journal bearings, models for tilting pad journal bearings were developed. Dynamic behaviour of the tilting pad journal bearing with three pads with line pivot geometry was compared with published data. A good agreement was obtained between the two numerical models. The effect of pad pivot geometry on bearing dynamic response was investigated. Vertical and horizont, QC 20150409, Swedish Hydropower Centre

Due to government regulations together with health and safety reasons, there are increasing demands on reducing hazardous polluting chemicals from fossil fuel power plants. Therefore, more efforts are imposed on using renewable resources such as water, wind, solar and tide to produce clean/green electricity. On top of that, there is another increasing demand from Original Equipment Manufacturers (OEMs) to operate power plants with higher load while keep the power loss to the minimum. These requirements drive conventional fluid film bearings to its mechanical and temperature limits. This calls for the development of new bearing system designs. An outstanding tribological performance such as low start-up and break-away friction, excellent resistance to chemical attack and anti-seizure properties, can be achieved by introducing compliant polymer liners. At the same time, bearings with compliant liners may alter rotor-bearing system dynamic behaviour compared to the systems with conventional white metal bearings. The research approach of this thesis is to implement compliant liner on bearing surface, impose synchronous shaft excitation and investigate the effect of bearing design parameters on bearing dynamic response. Plain cylindrical journal bearings with different compliant liner thicknesses were analysed using a FEM approach. The numerical model was compared with an in-house developed code based on the finite difference method (FDM) for a bearing operated at steady state conditions. Results obtained by the numerical models showed good agreement. After verification of the numerical model for fixed geometry journal bearings, models for tilting pad journal bearings were developed. Dynamic behaviour of the tilting pad journal bearing with three pads with line pivot geometry was compared with published data. A good agreement was obtained between the two numerical models. The effect of pad pivot geometry on bearing dynamic response was investigated. Vertical and horizont, QC 20150409, Swedish Hydropower Centre

Due to government regulations together with health and safety reasons, there are increasing demands on reducing hazardous polluting chemicals from fossil fuel power plants. Therefore, more efforts are imposed on using renewable resources such as water, wind, solar and tide to produce clean/green electricity. On top of that, there is another increasing demand from Original Equipment Manufacturers (OEMs) to operate power plants with higher load while keep the power loss to the minimum. These requirements drive conventional fluid film bearings to its mechanical and temperature limits. This calls for the development of new bearing system designs. An outstanding tribological performance such as low start-up and break-away friction, excellent resistance to chemical attack and anti-seizure properties, can be achieved by introducing compliant polymer liners. At the same time, bearings with compliant liners may alter rotor-bearing system dynamic behaviour compared to the systems with conventional white metal bearings. The research approach of this thesis is to implement compliant liner on bearing surface, impose synchronous shaft excitation and investigate the effect of bearing design parameters on bearing dynamic response. Plain cylindrical journal bearings with different compliant liner thicknesses were analysed using a FEM approach. The numerical model was compared with an in-house developed code based on the finite difference method (FDM) for a bearing operated at steady state conditions. Results obtained by the numerical models showed good agreement. After verification of the numerical model for fixed geometry journal bearings, models for tilting pad journal bearings were developed. Dynamic behaviour of the tilting pad journal bearing with three pads with line pivot geometry was compared with published data. A good agreement was obtained between the two numerical models. The effect of pad pivot geometry on bearing dynamic response was investigated. Vertical and horizont, QC 20150409, Swedish Hydropower Centre

Due to government regulations together with health and safety reasons, there are increasing demands on reducing hazardous polluting chemicals from fossil fuel power plants. Therefore, more efforts are imposed on using renewable resources such as water, wind, solar and tide to produce clean/green electricity. On top of that, there is another increasing demand from Original Equipment Manufacturers (OEMs) to operate power plants with higher load while keep the power loss to the minimum. These requirements drive conventional fluid film bearings to its mechanical and temperature limits. This calls for the development of new bearing system designs. An outstanding tribological performance such as low start-up and break-away friction, excellent resistance to chemical attack and anti-seizure properties, can be achieved by introducing compliant polymer liners. At the same time, bearings with compliant liners may alter rotor-bearing system dynamic behaviour compared to the systems with conventional white metal bearings. The research approach of this thesis is to implement compliant liner on bearing surface, impose synchronous shaft excitation and investigate the effect of bearing design parameters on bearing dynamic response. Plain cylindrical journal bearings with different compliant liner thicknesses were analysed using a FEM approach. The numerical model was compared with an in-house developed code based on the finite difference method (FDM) for a bearing operated at steady state conditions. Results obtained by the numerical models showed good agreement. After verification of the numerical model for fixed geometry journal bearings, models for tilting pad journal bearings were developed. Dynamic behaviour of the tilting pad journal bearing with three pads with line pivot geometry was compared with published data. A good agreement was obtained between the two numerical models. The effect of pad pivot geometry on bearing dynamic response was investigated. Vertical and horizont, QC 20150409, Swedish Hydropower Centre

Due to government regulations together with health and safety reasons, there are increasing demands on reducing hazardous polluting chemicals from fossil fuel power plants. Therefore, more efforts are imposed on using renewable resources such as water, wind, solar and tide to produce clean/green electricity. On top of that, there is another increasing demand from Original Equipment Manufacturers (OEMs) to operate power plants with higher load while keep the power loss to the minimum. These requirements drive conventional fluid film bearings to its mechanical and temperature limits. This calls for the development of new bearing system designs. An outstanding tribological performance such as low start-up and break-away friction, excellent resistance to chemical attack and anti-seizure properties, can be achieved by introducing compliant polymer liners. At the same time, bearings with compliant liners may alter rotor-bearing system dynamic behaviour compared to the systems with conventional white metal bearings. The research approach of this thesis is to implement compliant liner on bearing surface, impose synchronous shaft excitation and investigate the effect of bearing design parameters on bearing dynamic response. Plain cylindrical journal bearings with different compliant liner thicknesses were analysed using a FEM approach. The numerical model was compared with an in-house developed code based on the finite difference method (FDM) for a bearing operated at steady state conditions. Results obtained by the numerical models showed good agreement. After verification of the numerical model for fixed geometry journal bearings, models for tilting pad journal bearings were developed. Dynamic behaviour of the tilting pad journal bearing with three pads with line pivot geometry was compared with published data. A good agreement was obtained between the two numerical models. The effect of pad pivot geometry on bearing dynamic response was investigated. Vertical and horizont, QC 20150409, Swedish Hydropower Centre

The aim of this research was to identify the design aspects necessary to create an aesthetically appealing playroom environment to aid the well-being of hospitalised oncology children at a public hospital in Bloemfontein, South Africa. The methodology design is overall qualitative within the interpretivist paradigm with a triangulation methodology design with explanatory components. These components consisted of a literature review which was further explored by means of a qualitative questionnaire. The playroom was created as part of a community project according to the literature review and questionnaire after which semi-structured individual interviews were conducted with the children themselves.

The aim of this research was to identify the design aspects necessary to create an aesthetically appealing playroom environment to aid the well-being of hospitalised oncology children at a public hospital in Bloemfontein, South Africa. The methodology design is overall qualitative within the interpretivist paradigm with a triangulation methodology design with explanatory components. These components consisted of a literature review which was further explored by means of a qualitative questionnaire. The playroom was created as part of a community project according to the literature review and questionnaire after which semi-structured individual interviews were conducted with the children themselves.

The DUST (Delft University Settling Tube) is a settling tube system intended to analyse particle size (settling velocity) of sand ranging from 0.06 mm to 2 mm, with the sample mass varying from 0.5 g to 20 g. The main parts of the system are (see fig. 1): a. the sample introduction device (venetian blind with rotating lamellae) b. the settling tube c. the measuring device (underwater balance with feedback) All particles of a sample are released by the sample introduction device at the same time, after which they pass the settling tube. Finally they come at the balance, which measures more or less instantaneously the weight of the particles, thus yielding a cumulative settling velocity distribution. Dimensions and characteristics of the instrument and the measurement procedures have to be chosen such that the final error in the distribution function attains a minimum. Several of the relevant aspects are treated in the next sections. CONCLUSIONS a. Using an underwater balance with feedback, it is possible to measure the settling velocity distribution of (sand) particles ranging from 0.1 to 2 mm with an accuracy (systematic part of the error) better than 7%, in which 5% is due to the settling phenomenon itself (concentration effects). The precision (random part of the error) is better than 2%, including the error of sample splitting. The accuracy of the (relative) weight-measurement is better than 0.1% with a precision better than 0.5%. b. The impact of the particles can'be interpreted as a contribution to the delay time of the weighing system. As the impact partly compensates the delay time of the weighing system, the demands upon the delay time can be weakened. Given the possible velocity range, there is an optimum value of the delay time, for which the error will be smaller than 0.25 gy^2/L. c. Further research has to be done on the dependence of the settling phenomenon on the average particle diameter, the scatter in particle diameter, the diameter of the settling, Hydraulic Engineering, Civil Engineering and Geosciences

The DUST (Delft University Settling Tube) is a settling tube system intended to analyse particle size (settling velocity) of sand ranging from 0.06 mm to 2 mm, with the sample mass varying from 0.5 g to 20 g. The main parts of the system are (see fig. 1): a. the sample introduction device (venetian blind with rotating lamellae) b. the settling tube c. the measuring device (underwater balance with feedback) All particles of a sample are released by the sample introduction device at the same time, after which they pass the settling tube. Finally they come at the balance, which measures more or less instantaneously the weight of the particles, thus yielding a cumulative settling velocity distribution. Dimensions and characteristics of the instrument and the measurement procedures have to be chosen such that the final error in the distribution function attains a minimum. Several of the relevant aspects are treated in the next sections. CONCLUSIONS a. Using an underwater balance with feedback, it is possible to measure the settling velocity distribution of (sand) particles ranging from 0.1 to 2 mm with an accuracy (systematic part of the error) better than 7%, in which 5% is due to the settling phenomenon itself (concentration effects). The precision (random part of the error) is better than 2%, including the error of sample splitting. The accuracy of the (relative) weight-measurement is better than 0.1% with a precision better than 0.5%. b. The impact of the particles can'be interpreted as a contribution to the delay time of the weighing system. As the impact partly compensates the delay time of the weighing system, the demands upon the delay time can be weakened. Given the possible velocity range, there is an optimum value of the delay time, for which the error will be smaller than 0.25 gy^2/L. c. Further research has to be done on the dependence of the settling phenomenon on the average particle diameter, the scatter in particle diameter, the diameter of the settling, Hydraulic Engineering, Civil Engineering and Geosciences

The contribution covers research and development aspects concerning a Sentinel-2 atmopsheric correction processor. The Sentinel-2 multispectral sensor acquires 13 optical channels from the deep blue (0.443 µm) up to the shortwave infrared (2.19 µm) spectral range. These multispectral data allows aerosol optical thickness, water vapor, cirrus, and bottom of atmospere reflectance estimation. Sensitivity analysis given simulated and real spectral data as wellas an estimation of the parameter set was done. The research outcome is documented in the algorithm theoretical basis document and implemented into an automatic batch processing chain. Scientific validation of the processor on synthetic and real data with in situ measurements finalizes the work.