R.J.H.G. van Heur
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42 records found
1
The purpose of this thesis is to investigate how organisations can improve the effectiveness of innovation implementation. To achieve this, a combination of qualitative research and literature review are conducted, diving into the field of implementation science. Insights from practitioners regarding implementation processes are combined with relevant literature to identify the important causes of implementation failure.
Following the Design Science Research methodology, two artefacts were developed. The first artefact focuses on refining a widely used framework among practitioners, aiming to enhance its effectiveness. The second artefact addresses the evidence-practice gap, which highlights the disconnect between theoretical knowledge and practical application. This artefact synthesises the findings of the study to improve implementation practices.
Ultimately, the goal of this thesis is to enhance innovation implementation by providing practitioners with two artefacts that integrate comprehensive insights from both research and practice. These contributions are intended to support organisations in overcoming the challenges associated with innovation implementation and achieving greater success. ...
The purpose of this thesis is to investigate how organisations can improve the effectiveness of innovation implementation. To achieve this, a combination of qualitative research and literature review are conducted, diving into the field of implementation science. Insights from practitioners regarding implementation processes are combined with relevant literature to identify the important causes of implementation failure.
Following the Design Science Research methodology, two artefacts were developed. The first artefact focuses on refining a widely used framework among practitioners, aiming to enhance its effectiveness. The second artefact addresses the evidence-practice gap, which highlights the disconnect between theoretical knowledge and practical application. This artefact synthesises the findings of the study to improve implementation practices.
Ultimately, the goal of this thesis is to enhance innovation implementation by providing practitioners with two artefacts that integrate comprehensive insights from both research and practice. These contributions are intended to support organisations in overcoming the challenges associated with innovation implementation and achieving greater success.
This luxurious feeling is especially present when consuming the drink, served with beautiful latte art, in a café. At home, this luxurious feeling is far from achieved by many people. Most often, the coffee drinks with milk are served with thick, airy and dull foam. An affordable product that can reproduce café quality milk from the comfort of your home currently not offered.
The need for such a product was identified during the master elective Build Your Start-up at the Delft University of Technology. This thesis aims to develop a working prototype of stand-alone milk steamer for coffee enthusiasts that allows them to create café quality milk foam at home. The results of this thesis will serve as a starting point for the further development to one day be used by many people around the globe.
During this project, the target group for such a product was formed and product wishes were identified through user research, market analysis and expert interviews. These wishes were combined to identify the required theoretical knowledge about milk foaming and foaming technologies for the further development of prototypes.
Fluid and thermodynamics models were created to aid the identification of promising technologies. Three heating technologies were identified that could showed promise for the creation of a stand-alone milk steamer. These technologies were evaluated using physical prototypes. Eventually, custom nozzles were designed to complete the prototypes. These prototypes were evaluated with experts and deemed very capable of reproducing café quality milk foam.
The final prototype that is revealed during the final presentation will serve as a prototype that serves multiple purposes. It serves as a technology demonstrator which can be further developed. Furthermore, it can be used as a tool to gather funds for the further development of the concept. All with the goal of eventually manufacturing and shipping a product to many customers.
...
This luxurious feeling is especially present when consuming the drink, served with beautiful latte art, in a café. At home, this luxurious feeling is far from achieved by many people. Most often, the coffee drinks with milk are served with thick, airy and dull foam. An affordable product that can reproduce café quality milk from the comfort of your home currently not offered.
The need for such a product was identified during the master elective Build Your Start-up at the Delft University of Technology. This thesis aims to develop a working prototype of stand-alone milk steamer for coffee enthusiasts that allows them to create café quality milk foam at home. The results of this thesis will serve as a starting point for the further development to one day be used by many people around the globe.
During this project, the target group for such a product was formed and product wishes were identified through user research, market analysis and expert interviews. These wishes were combined to identify the required theoretical knowledge about milk foaming and foaming technologies for the further development of prototypes.
Fluid and thermodynamics models were created to aid the identification of promising technologies. Three heating technologies were identified that could showed promise for the creation of a stand-alone milk steamer. These technologies were evaluated using physical prototypes. Eventually, custom nozzles were designed to complete the prototypes. These prototypes were evaluated with experts and deemed very capable of reproducing café quality milk foam.
The final prototype that is revealed during the final presentation will serve as a prototype that serves multiple purposes. It serves as a technology demonstrator which can be further developed. Furthermore, it can be used as a tool to gather funds for the further development of the concept. All with the goal of eventually manufacturing and shipping a product to many customers.
This project examines the privacy and stakeholder landscape of health data sharing through an evaluation of interaction with patients. It uses a Value-Sensitive design approach (Friedman et al., 2002) to contextualize the privacy values in clinical research for patients, doctors, patient organizations, clinical researchers, pharmaceutical industries and data sharing platforms. Through this examination, it identifies lack of transparent data use and research practices as a hindrance to the use of health data on a data sharing platform. Transparency is examined through a patient-centric lens, wherein information and control over preferences of participation are found to be crucial. This evaluation further identifies roles of researchers and data sharing platforms for a transparent approach.
The project results in a concept termed ‘Negotiated Consent‘, which examines the use of data sharing platforms in offering individuals transparency. This is contextualized within patient consent for recruitment in clinical research, wherein data sharing platforms are responsible for data processing through the use of Federated Learning and Natural Language Processing. The stakeholder landscape for the same is defined in 3 functions for the platform- Access to Health Data, Patient Consent and Recruitment, and Data-Driven Insights. The results are tested through a study of the prototyped user experience of ‘Negotiated Consent‘, wherein participants emphasized ‘feeling more informed and in control’ in comparison to the current informed consent.
Whilst the study examines a patient-centric approach towards health data sharing for clinical research, it has limitations in addressing the multi-faceted reality of patient’s lives that informs their choices to enrol in clinical research. The further development of patient-centricity in the domain requires examination of motivations through a lens of disease-specific patient groups, demographics, and personal history with diseases (Hong et al., 2020) will lead to richer insights. Furthermore, Negotiated Consent is a proof-of-concept for dynamic consent (Mascalzoni et al., 2022), that demonstrates revision over participation choices within one moment of patient consent.
This project contributes to an understanding of the privacy and stakeholder dynamics for health data sharing. It illuminates a transparent approach to recruitment for clinical research through a collaborative effort that emphasizes on patient-centric approaches. Using a mutually responsible approach, data sharing platforms can lead the way for use of data in clinical research that simultaneously empowers patients to control their data through a negotiated lens. ...
This project examines the privacy and stakeholder landscape of health data sharing through an evaluation of interaction with patients. It uses a Value-Sensitive design approach (Friedman et al., 2002) to contextualize the privacy values in clinical research for patients, doctors, patient organizations, clinical researchers, pharmaceutical industries and data sharing platforms. Through this examination, it identifies lack of transparent data use and research practices as a hindrance to the use of health data on a data sharing platform. Transparency is examined through a patient-centric lens, wherein information and control over preferences of participation are found to be crucial. This evaluation further identifies roles of researchers and data sharing platforms for a transparent approach.
The project results in a concept termed ‘Negotiated Consent‘, which examines the use of data sharing platforms in offering individuals transparency. This is contextualized within patient consent for recruitment in clinical research, wherein data sharing platforms are responsible for data processing through the use of Federated Learning and Natural Language Processing. The stakeholder landscape for the same is defined in 3 functions for the platform- Access to Health Data, Patient Consent and Recruitment, and Data-Driven Insights. The results are tested through a study of the prototyped user experience of ‘Negotiated Consent‘, wherein participants emphasized ‘feeling more informed and in control’ in comparison to the current informed consent.
Whilst the study examines a patient-centric approach towards health data sharing for clinical research, it has limitations in addressing the multi-faceted reality of patient’s lives that informs their choices to enrol in clinical research. The further development of patient-centricity in the domain requires examination of motivations through a lens of disease-specific patient groups, demographics, and personal history with diseases (Hong et al., 2020) will lead to richer insights. Furthermore, Negotiated Consent is a proof-of-concept for dynamic consent (Mascalzoni et al., 2022), that demonstrates revision over participation choices within one moment of patient consent.
This project contributes to an understanding of the privacy and stakeholder dynamics for health data sharing. It illuminates a transparent approach to recruitment for clinical research through a collaborative effort that emphasizes on patient-centric approaches. Using a mutually responsible approach, data sharing platforms can lead the way for use of data in clinical research that simultaneously empowers patients to control their data through a negotiated lens.
Teleoperation With Force Feedback
A Case Study On Anti-Sway For Offshore Applications
Operators rely on their intuition and experience when manually operating these machines. For the proposed teleoperation of machine handling, the operator is now distanced from the machine, removing their sense of control, direct force contact, and now making them trust in automation. This is where a force feedback telemanipulator can increase situational awareness and human machine performance. This is achieved through returning the direct contact forces back to the operator and providing them intuitive control from afar. With more research, rapid prototyping, and machine simulation, Paddy (the teleoperation force feedback test set up) is designed and developed. The proof-of-concept test set up is built using open-source frameworks such as Stanford Hapkit and Vanderbilt Simulink model, but with substantial redesign for offshore anti-sway use case.
To validate the design and use case, a user test with 12 Allseas engineers is conducted. The task is to mitigate the swing of the FJC simulation via the handheld manipulator with and without force feedback. The results imply that the main hypotheses are valid: (1) force feedback yields faster stabilization times, (2) the perceived workload from NASA-TLX scores is lower for force feedback (3) the user requirements and ease of use UMUX-Lite scores is favourable with force feedback, and (4) embodiment and hand placement influences expectations and feeling the feedback mechanisms. Future research could explore different feedback types (assistance vs. error prevention), feedback basis (sway angle vs. angular velocity) or further confirm these hypotheses.
Force feedback is not typically studied in industrial engineering. Thus, design guidelines are created based on this thesis exploration, emphasizing that force feedback is not an add on, but should be considered from the start of the design process. Lastly, recommendations for force feedback in Allseas and other relevant applications are stated for increased situational awareness, task efficiency, and enhanced HMI. ...
Operators rely on their intuition and experience when manually operating these machines. For the proposed teleoperation of machine handling, the operator is now distanced from the machine, removing their sense of control, direct force contact, and now making them trust in automation. This is where a force feedback telemanipulator can increase situational awareness and human machine performance. This is achieved through returning the direct contact forces back to the operator and providing them intuitive control from afar. With more research, rapid prototyping, and machine simulation, Paddy (the teleoperation force feedback test set up) is designed and developed. The proof-of-concept test set up is built using open-source frameworks such as Stanford Hapkit and Vanderbilt Simulink model, but with substantial redesign for offshore anti-sway use case.
To validate the design and use case, a user test with 12 Allseas engineers is conducted. The task is to mitigate the swing of the FJC simulation via the handheld manipulator with and without force feedback. The results imply that the main hypotheses are valid: (1) force feedback yields faster stabilization times, (2) the perceived workload from NASA-TLX scores is lower for force feedback (3) the user requirements and ease of use UMUX-Lite scores is favourable with force feedback, and (4) embodiment and hand placement influences expectations and feeling the feedback mechanisms. Future research could explore different feedback types (assistance vs. error prevention), feedback basis (sway angle vs. angular velocity) or further confirm these hypotheses.
Force feedback is not typically studied in industrial engineering. Thus, design guidelines are created based on this thesis exploration, emphasizing that force feedback is not an add on, but should be considered from the start of the design process. Lastly, recommendations for force feedback in Allseas and other relevant applications are stated for increased situational awareness, task efficiency, and enhanced HMI.
TRACK Core
Towards a world-friendly asset tracker
In this project an attempt was made to find a solution for the most impactful and relevant components such as the PCBA and the PV panel. First sustainability issues of the current TRACK components were identified and then the sustainable opportunities and limitations of alternative technologies were discussed. To show at what point in time the new technologies are expected to become relevant, technology roadmaps were created.
As a conclusion of this world-friendly technology research, a vision for the future of the TRACK line was laid out in a product roadmap. To show how the integration of the more world-friendly components could translate into practise, the TRACK Core 5G concept was designed as a showcase product. The TRACK Core 5G prototype includes a solvent-based recycled polycarbonate (PC) transparent enclosure, with electronics printed on a recycled substrate and a flexible emerging PV panel.
To extend the lifespan of the electronics, circular product design guidelines were applied. The basis of the circular loops is that the components can be disassembled quickly. In the current product the time it takes to replace the battery was relatively long (80 seconds) and the PV panel could not be replaced at all. By using the disassembly strategies and the choice for a 'direct access' design, all electronic components, including the PV panel, can be disassembled in 6-17 seconds.
In order to extend the life of the most impactful components, the chips on the printed circuit board, the theory of modular design was applied. By using the material properties of the flexible PCB, a new strategy for upgrading the PCB was developed which brings down the initial cost and
offers more flexibility. ...
In this project an attempt was made to find a solution for the most impactful and relevant components such as the PCBA and the PV panel. First sustainability issues of the current TRACK components were identified and then the sustainable opportunities and limitations of alternative technologies were discussed. To show at what point in time the new technologies are expected to become relevant, technology roadmaps were created.
As a conclusion of this world-friendly technology research, a vision for the future of the TRACK line was laid out in a product roadmap. To show how the integration of the more world-friendly components could translate into practise, the TRACK Core 5G concept was designed as a showcase product. The TRACK Core 5G prototype includes a solvent-based recycled polycarbonate (PC) transparent enclosure, with electronics printed on a recycled substrate and a flexible emerging PV panel.
To extend the lifespan of the electronics, circular product design guidelines were applied. The basis of the circular loops is that the components can be disassembled quickly. In the current product the time it takes to replace the battery was relatively long (80 seconds) and the PV panel could not be replaced at all. By using the disassembly strategies and the choice for a 'direct access' design, all electronic components, including the PV panel, can be disassembled in 6-17 seconds.
In order to extend the life of the most impactful components, the chips on the printed circuit board, the theory of modular design was applied. By using the material properties of the flexible PCB, a new strategy for upgrading the PCB was developed which brings down the initial cost and
offers more flexibility.
This thesis presents recommendations based on a case study focused on thecircular redesign of a wearable, single use medical device. The study addressesa knowledge gap by offering insights into the circular (re)design for products.The proposed (re)design of the system leads to a substantial reduction of CO2emissions, with potential for further improvements.
Philips Healthdot
The Philips Healthdot, the subject to this thesis, is a medical wearablesensor designed to wirelessly capture bio measurements and transmit them tohospitals. Once used, the sensor becomes inactive and is discarded as waste.While similar reusable sensors exist, only two were identified during research.
Research
Literature research was conducted concerning the circular economy, its designstrategies and business models. A comprehensive analysis of the Healthdot’sproduct journey was performed, complemented by a fast-track Life Cycle Analysis(LCA). The LCA revealed the high CO2 impact of its electronics, highlightingthe importance of extending their usage. Based on the outcomes of theseanalyses, requirements and criteria were defined, which formed the foundationsof the proposed solution.
SecondSense
The proposed solution, SecondSense, consists of two components: SenseFlowand SenseCab (Figure FIXME & FIXME). SenseFlow describes the sensorlifecycle within the system, while SenseCab enables easy reprocessing. In theSenseFlow system, used sensors are collected, cleaned, and placed in theSenseCab for data removal, disinfection and charging.
Life Cycle Analsyis
A comparison between SecondSense and the original Healthdot was conductedusing an LCA (see Figure FIXME). SecondSense shows reductions in CO2 emissionsafter only three uses, with 45% and 60% reductions after five and ten uses. Theanalysis considered worst-case scenario, with a best-case scenario showing CO2reductions upwards of 80% after 10 uses.
Recommendations
The case study outcomes led to the following recommendations, intended as astarting point for designers and engineers developing circular solutions formedical wearable sensors:
1 Gain a solid understanding of the basic principles of the circulareconomy
2 Research circular design strategies and business models for the designchallenge
3 Determine what defines circular economy
4 First, determine how the system is going to be circular, then design theproduct so that it enables this system.
4a Take additional carewhen determining boundaries
4b Determine a detailed systemoutline
4c Analyse the system toformulate requirements
4d Integrate the classic designprocess into the circular system
5 Use fast-track LCAs for conceptual insights
6 Involvestakeholders in the design process.
...
This thesis presents recommendations based on a case study focused on thecircular redesign of a wearable, single use medical device. The study addressesa knowledge gap by offering insights into the circular (re)design for products.The proposed (re)design of the system leads to a substantial reduction of CO2emissions, with potential for further improvements.
Philips Healthdot
The Philips Healthdot, the subject to this thesis, is a medical wearablesensor designed to wirelessly capture bio measurements and transmit them tohospitals. Once used, the sensor becomes inactive and is discarded as waste.While similar reusable sensors exist, only two were identified during research.
Research
Literature research was conducted concerning the circular economy, its designstrategies and business models. A comprehensive analysis of the Healthdot’sproduct journey was performed, complemented by a fast-track Life Cycle Analysis(LCA). The LCA revealed the high CO2 impact of its electronics, highlightingthe importance of extending their usage. Based on the outcomes of theseanalyses, requirements and criteria were defined, which formed the foundationsof the proposed solution.
SecondSense
The proposed solution, SecondSense, consists of two components: SenseFlowand SenseCab (Figure FIXME & FIXME). SenseFlow describes the sensorlifecycle within the system, while SenseCab enables easy reprocessing. In theSenseFlow system, used sensors are collected, cleaned, and placed in theSenseCab for data removal, disinfection and charging.
Life Cycle Analsyis
A comparison between SecondSense and the original Healthdot was conductedusing an LCA (see Figure FIXME). SecondSense shows reductions in CO2 emissionsafter only three uses, with 45% and 60% reductions after five and ten uses. Theanalysis considered worst-case scenario, with a best-case scenario showing CO2reductions upwards of 80% after 10 uses.
Recommendations
The case study outcomes led to the following recommendations, intended as astarting point for designers and engineers developing circular solutions formedical wearable sensors:
1 Gain a solid understanding of the basic principles of the circulareconomy
2 Research circular design strategies and business models for the designchallenge
3 Determine what defines circular economy
4 First, determine how the system is going to be circular, then design theproduct so that it enables this system.
4a Take additional carewhen determining boundaries
4b Determine a detailed systemoutline
4c Analyse the system toformulate requirements
4d Integrate the classic designprocess into the circular system
5 Use fast-track LCAs for conceptual insights
6 Involvestakeholders in the design process.
The Design of a Volume Control System for the Quooker tap
The design a volume unit as an addition to the current product system, which will allow the user to control boiling, chilled and carbonated water volumes
Discover
Research is conducted internally at Quooker B.V. to identify the system characteristics when it comes to Quooker reservoirs, as well as the user interface and usability of the taps and accessories. Externally, competitors and other field applications are considered as inspiration for the design of the project. A set of use cases is obtained through exploration and user interviews, which serve as guideline for the design. Interestingly, users don’t frequently measure water volumes as they rather fill their pots by feeling based on the relative water level in the container. As for technology, after careful literature and desktop research, flow sensors, weight scales, pumps, timers and pressure sensors are considered.
Define
Based on the user needs and wishes, as well as Quooker system limitations, a list of requirements is created to steer the direction of the design process. These criteria include amongst others; usability, performance, aesthetic and cost price requirements. Some important aspects that are considered are limescale, flow rate, mental strain and the properties of special feature water, such as temperature, pressure and water consistency.
Develop
The next step is to explore different design directions. Several options are considered for both the user interaction and flow measurement, as well as possible placements within the current system to establish compatibility. These options are evaluated by users and R&D engineers and the final concepts were chosen; an external knob for over-the-counter user interaction alongside a turbine flow sensor at the inlet of the water system. These concepts are developed and tested within and outside of Quooker B.V. and iterations are made to improve the design.
Deliver
Finally, the part assemblies are laid out and design decisions are presented, as well as where the two units are placed in the system and how they are connected with each other. A cost estimation and preliminary manufacturing plan are presented to prove the feasibility of the design and future recommendations are made to assist Quooker B.V. with the further development of the product. ...
Discover
Research is conducted internally at Quooker B.V. to identify the system characteristics when it comes to Quooker reservoirs, as well as the user interface and usability of the taps and accessories. Externally, competitors and other field applications are considered as inspiration for the design of the project. A set of use cases is obtained through exploration and user interviews, which serve as guideline for the design. Interestingly, users don’t frequently measure water volumes as they rather fill their pots by feeling based on the relative water level in the container. As for technology, after careful literature and desktop research, flow sensors, weight scales, pumps, timers and pressure sensors are considered.
Define
Based on the user needs and wishes, as well as Quooker system limitations, a list of requirements is created to steer the direction of the design process. These criteria include amongst others; usability, performance, aesthetic and cost price requirements. Some important aspects that are considered are limescale, flow rate, mental strain and the properties of special feature water, such as temperature, pressure and water consistency.
Develop
The next step is to explore different design directions. Several options are considered for both the user interaction and flow measurement, as well as possible placements within the current system to establish compatibility. These options are evaluated by users and R&D engineers and the final concepts were chosen; an external knob for over-the-counter user interaction alongside a turbine flow sensor at the inlet of the water system. These concepts are developed and tested within and outside of Quooker B.V. and iterations are made to improve the design.
Deliver
Finally, the part assemblies are laid out and design decisions are presented, as well as where the two units are placed in the system and how they are connected with each other. A cost estimation and preliminary manufacturing plan are presented to prove the feasibility of the design and future recommendations are made to assist Quooker B.V. with the further development of the product.
How to design learning tools that entrepreneurs actually use?
Using three analytical approaches to bridge the research-practice gap in entrepreneurship
To improve the success rate of startups, academic research could be used. However within entrepreneurship, academic research becomes detached from practical relevance. This is an issue described in academic literature as the ‘Research-Practice Gap’. To address this gap, a “third body” or “design” is proposed as a mediating factor between research and practice. This design could offer prescriptive principles and tools that are useful for entrepreneurs. Currently, such designs are predominantly created by reflective practitioners rather than scholars. This offers certain problems in practice, such as their lack of rigor, limited generalizability, bias and subjectivity and finally lack of theoretical grounding.
This thesis aims to provide scholars with knowledge how to create learning tools that entrepreneurs actually use. As a result, scholars are able to covert their academic papers into desirable action-oriented learning tools. The first part of this thesis analyses this research-practice gap in three ways. First, it conducts a literature research of relevant literature in the domain of learning within entrepreneurship. Second, it researches the perspective of entrepreneurs on the gap by using a qualitative research study. Finally, the author dives into the role of an entrepreneur by solving a case-study for Stippl. This reveals a first-person perspective into the research-practice gap. The conclusions of these three research methods are combined into 4 important elements to implement when creating a learning tool for entrepreneurs.
The second part of this thesis converts the analysis into a product to use for scholars. This product does not only provide insights of the analysis, but it also supports scholars in using the important elements within their learning tool. In this part, the thesis identifies the necessary requirements for the product and creates three concept ideas. These concept ideas are tested with scholars to create one final product which implements the 4 important elements for scholars to create relevant learning tools.
This thesis aims to provide scholars with the necessary knowledge to create relevant learning tools. The ultimate goal is to improve the success rate of startups by providing entrepreneurs with desirable and relevant knowledge.
...
To improve the success rate of startups, academic research could be used. However within entrepreneurship, academic research becomes detached from practical relevance. This is an issue described in academic literature as the ‘Research-Practice Gap’. To address this gap, a “third body” or “design” is proposed as a mediating factor between research and practice. This design could offer prescriptive principles and tools that are useful for entrepreneurs. Currently, such designs are predominantly created by reflective practitioners rather than scholars. This offers certain problems in practice, such as their lack of rigor, limited generalizability, bias and subjectivity and finally lack of theoretical grounding.
This thesis aims to provide scholars with knowledge how to create learning tools that entrepreneurs actually use. As a result, scholars are able to covert their academic papers into desirable action-oriented learning tools. The first part of this thesis analyses this research-practice gap in three ways. First, it conducts a literature research of relevant literature in the domain of learning within entrepreneurship. Second, it researches the perspective of entrepreneurs on the gap by using a qualitative research study. Finally, the author dives into the role of an entrepreneur by solving a case-study for Stippl. This reveals a first-person perspective into the research-practice gap. The conclusions of these three research methods are combined into 4 important elements to implement when creating a learning tool for entrepreneurs.
The second part of this thesis converts the analysis into a product to use for scholars. This product does not only provide insights of the analysis, but it also supports scholars in using the important elements within their learning tool. In this part, the thesis identifies the necessary requirements for the product and creates three concept ideas. These concept ideas are tested with scholars to create one final product which implements the 4 important elements for scholars to create relevant learning tools.
This thesis aims to provide scholars with the necessary knowledge to create relevant learning tools. The ultimate goal is to improve the success rate of startups by providing entrepreneurs with desirable and relevant knowledge.
The goal was to develop a process that reduces the cost and the time to manufacture an injection mould while maintaining a similar accuracy as in conventional mould production. Usually, Sonion outsources the production of injected moulded parts, resulting in parts with a tolerance of ~ ±10 µm that cost €15.000 for a 1000 pieces with a delivery time of 6-8 weeks. For Sonion’s development process, which is prototype heavy, this is too expensive and takes too much time. A micro injection moulding machine is acquired to shorten the iteration time of their design process and to reduce cost.
Before and during this research, the possibilities of 3D printing the moulds with a thermal resistant resin were being explored. For that reason, 3D printing with these materials was left out of the scope of this project. Although the accuracy for this method is sufficient, it struggles with the high pressure and temperature it is exposed to while injection moulding.
After identifying many possible manufacturing methods, the most promising techniques capable of withstanding the injection moulding temperature were chosen and validated through testing, research and consulting experts. For a total of six methods, the physical performance (a combination of accuracy, surface roughness and tool life) and the feasibility (iteration time, cost, form freedom and ease of execution) was determined. From the selected six methods, two were recommended for further exploration and investigation; Micro Metal Casting and Powder Injection Moulding. The other methods fell short due to a lack of accuracy, causing iteration time to be too long and the inability to manufacture certain parts of the mould.
The Micro Casting method works on the principle of the lost wax casting and is taken to a higher level by increasing its ability to replicate a shape. Both fully outsourcing the production and in-house production have been tested with similar results; the in-house production being slightly more accurate with a lower surface roughness. Metal moulds can be produced with a tolerance of ±25 µm for a price of around €750 within one to two weeks. It is recommended that for the continuation of this method, first the already acquired moulds are tested and future designs are fully outsourced until higher accuracy and lower surface roughness are required.
Powder Injection Moulding is a method capable of moulding metal parts at a temperature of 190 °C by mixing a fine metal grain with a polymeric binder and therefore could be used to produce a metal injection mould. In theory, the 3D printed moulds should be able to resist this temperature since it is relatively low. After moulding, the part goes into the oven for the polymer to debind and the grains to be sintered together.
A collaboration with the Powder Injection Moulding company Demcon had been setup for testing, but due to misaligning agendas it could not be set in motion. A test with a similar material has been conducted with highly detailed results. It is suggested to explore the possibilities of this method further.
...
The goal was to develop a process that reduces the cost and the time to manufacture an injection mould while maintaining a similar accuracy as in conventional mould production. Usually, Sonion outsources the production of injected moulded parts, resulting in parts with a tolerance of ~ ±10 µm that cost €15.000 for a 1000 pieces with a delivery time of 6-8 weeks. For Sonion’s development process, which is prototype heavy, this is too expensive and takes too much time. A micro injection moulding machine is acquired to shorten the iteration time of their design process and to reduce cost.
Before and during this research, the possibilities of 3D printing the moulds with a thermal resistant resin were being explored. For that reason, 3D printing with these materials was left out of the scope of this project. Although the accuracy for this method is sufficient, it struggles with the high pressure and temperature it is exposed to while injection moulding.
After identifying many possible manufacturing methods, the most promising techniques capable of withstanding the injection moulding temperature were chosen and validated through testing, research and consulting experts. For a total of six methods, the physical performance (a combination of accuracy, surface roughness and tool life) and the feasibility (iteration time, cost, form freedom and ease of execution) was determined. From the selected six methods, two were recommended for further exploration and investigation; Micro Metal Casting and Powder Injection Moulding. The other methods fell short due to a lack of accuracy, causing iteration time to be too long and the inability to manufacture certain parts of the mould.
The Micro Casting method works on the principle of the lost wax casting and is taken to a higher level by increasing its ability to replicate a shape. Both fully outsourcing the production and in-house production have been tested with similar results; the in-house production being slightly more accurate with a lower surface roughness. Metal moulds can be produced with a tolerance of ±25 µm for a price of around €750 within one to two weeks. It is recommended that for the continuation of this method, first the already acquired moulds are tested and future designs are fully outsourced until higher accuracy and lower surface roughness are required.
Powder Injection Moulding is a method capable of moulding metal parts at a temperature of 190 °C by mixing a fine metal grain with a polymeric binder and therefore could be used to produce a metal injection mould. In theory, the 3D printed moulds should be able to resist this temperature since it is relatively low. After moulding, the part goes into the oven for the polymer to debind and the grains to be sintered together.
A collaboration with the Powder Injection Moulding company Demcon had been setup for testing, but due to misaligning agendas it could not be set in motion. A test with a similar material has been conducted with highly detailed results. It is suggested to explore the possibilities of this method further.
Creating a value-driven Digital Identity Future
Engaging multiple stakeholders in strategic dialogues to balance values in the emergent ecosystem of digital identity in Europe
This thesis explored the ongoing development process through a systemic approach and the lens of Value Sensitive Design (VSD) (Van Den Hoven et.al., 2015). A research-by-design approach uncovers the values and uniqueness of multiple stakeholders and provides new perspectives on the emergent system dynamics of digital identity. The EU Commission Vision on the EUDI Wallet was used as starting point to explore stakeholder values (Users¹, Relying Parties², Experts / Oversight Perspective³) and engage them in the future by still acting as the experts of their own experiences.
Value tensions and risks are mapped to showcase the future implications of wrongly managed decisions in the process from a system perspective. Based on the systemic approach, a vision for all coming verification processes is created as the development is just a starting process for what is coming next within the wallet development field.
The vision aims to help facilitate a way to include the values and mental models of different parties in the creation process of digital identity verification experiences.
“Creating respectful transaction mechanisms that include the values of all participants by integrating a trusted relationship in the layers behind the app”
The design provides a new value-finding method created in the interview process, and a structure for strategic dialogues (Talking Across The Divide, n.d.). The strategic dialogue set up with the name “Welcome to the Common Ground” can be seen as a transition design towards ‘Design for Behaviour Change’ (Irwin, 2018), as part of an intervention to solve wicket problems (Dorst, 2015). I saw that multiple stakeholders with opposing opinions have to come together to formulate goals towards future practices in which stakeholders’ values need to be balanced by having moral values as the foundation and creating an understanding of each other’s needs for different verification experiences. Therefore the final designs can empower INNOPAY to establish ethical technology design in consultancy practices.
Because: “If values can be imparted to technology and shape the space of actions of human beings, then we need to learn to incorporate and express shared values in the things we design and make.”
(Van Den Hoven et al., 2015). ...
This thesis explored the ongoing development process through a systemic approach and the lens of Value Sensitive Design (VSD) (Van Den Hoven et.al., 2015). A research-by-design approach uncovers the values and uniqueness of multiple stakeholders and provides new perspectives on the emergent system dynamics of digital identity. The EU Commission Vision on the EUDI Wallet was used as starting point to explore stakeholder values (Users¹, Relying Parties², Experts / Oversight Perspective³) and engage them in the future by still acting as the experts of their own experiences.
Value tensions and risks are mapped to showcase the future implications of wrongly managed decisions in the process from a system perspective. Based on the systemic approach, a vision for all coming verification processes is created as the development is just a starting process for what is coming next within the wallet development field.
The vision aims to help facilitate a way to include the values and mental models of different parties in the creation process of digital identity verification experiences.
“Creating respectful transaction mechanisms that include the values of all participants by integrating a trusted relationship in the layers behind the app”
The design provides a new value-finding method created in the interview process, and a structure for strategic dialogues (Talking Across The Divide, n.d.). The strategic dialogue set up with the name “Welcome to the Common Ground” can be seen as a transition design towards ‘Design for Behaviour Change’ (Irwin, 2018), as part of an intervention to solve wicket problems (Dorst, 2015). I saw that multiple stakeholders with opposing opinions have to come together to formulate goals towards future practices in which stakeholders’ values need to be balanced by having moral values as the foundation and creating an understanding of each other’s needs for different verification experiences. Therefore the final designs can empower INNOPAY to establish ethical technology design in consultancy practices.
Because: “If values can be imparted to technology and shape the space of actions of human beings, then we need to learn to incorporate and express shared values in the things we design and make.”
(Van Den Hoven et al., 2015).
The central focus of this graduation project is therefore to answer the research question: "How can design agency Nacar create an effective transition strategy?" The chosen approach involves engaging various stakeholders throughout the different phases of the project. This includes direct participation from employees across various business units, with validation from top management afterwards. To guide the research, two sub-questions are formulated to guide the process, aiming to find the obstacles and enablers of the transition that Nacar faces, as well as the organisational challenges Nacar encounters in facilitating the transition.
Nine insights are identified from the research, being obstacles, enablers, or challenges. To refine these insights, they are further categorised into three levels: operational, tactical, and strategic insights. After validating the research insights with top management, the following conclusion could be drawn: “There is a need to create a bridge between the perspective of the employees and the perspective of top management.” In order to develop this bridge, employee participation during the creation of a solution is crucial. Therefore employees are recruited for a workshop to share their input and ideas for the solution, after which a roadmap for 2025 is created, addressing the insights found during the research. By collecting both perspectives in this roadmap, a framework for the transition is created.
However, this roadmap does not provide directions or guidance for Nacar during the transition. Therefore three strategies are created in the shape of routes that can be taken within the roadmap. These strategies each prioritise a different strategic goal for 2025 and provide the path to achieve it. The strategies are validated to ensure they resonate with the perspective of the employees. After this validation, the final solution was created.
The transition strategy exists as a combination of the strategy with a business focus and the strategy with a people focus. This combination results in a strategy that aims to introduce a new innovation lab and optimise daily operations to improve the employee experience. Further recommendations are made to support the outcome in terms of advice on implementation and execution.
Overall, this report provides a framework for designing an effective transition strategy that can help Nacar navigate the complexities of change in the future.
...
The central focus of this graduation project is therefore to answer the research question: "How can design agency Nacar create an effective transition strategy?" The chosen approach involves engaging various stakeholders throughout the different phases of the project. This includes direct participation from employees across various business units, with validation from top management afterwards. To guide the research, two sub-questions are formulated to guide the process, aiming to find the obstacles and enablers of the transition that Nacar faces, as well as the organisational challenges Nacar encounters in facilitating the transition.
Nine insights are identified from the research, being obstacles, enablers, or challenges. To refine these insights, they are further categorised into three levels: operational, tactical, and strategic insights. After validating the research insights with top management, the following conclusion could be drawn: “There is a need to create a bridge between the perspective of the employees and the perspective of top management.” In order to develop this bridge, employee participation during the creation of a solution is crucial. Therefore employees are recruited for a workshop to share their input and ideas for the solution, after which a roadmap for 2025 is created, addressing the insights found during the research. By collecting both perspectives in this roadmap, a framework for the transition is created.
However, this roadmap does not provide directions or guidance for Nacar during the transition. Therefore three strategies are created in the shape of routes that can be taken within the roadmap. These strategies each prioritise a different strategic goal for 2025 and provide the path to achieve it. The strategies are validated to ensure they resonate with the perspective of the employees. After this validation, the final solution was created.
The transition strategy exists as a combination of the strategy with a business focus and the strategy with a people focus. This combination results in a strategy that aims to introduce a new innovation lab and optimise daily operations to improve the employee experience. Further recommendations are made to support the outcome in terms of advice on implementation and execution.
Overall, this report provides a framework for designing an effective transition strategy that can help Nacar navigate the complexities of change in the future.
However, in the current situation the company does not have enough modules to fulfill the growing need of hands-on practice opportunities. The key recommendation is that the company supply should be aligned with the hands-on training demand to support a practice stimulating environment. It can be concluded that this thesis provides a starting point for the company to explore their way of working in the future Training Center, where learning by doing is crucial to satisfy the engineer’s needs and to create optimal field self-sufficiency.
...
However, in the current situation the company does not have enough modules to fulfill the growing need of hands-on practice opportunities. The key recommendation is that the company supply should be aligned with the hands-on training demand to support a practice stimulating environment. It can be concluded that this thesis provides a starting point for the company to explore their way of working in the future Training Center, where learning by doing is crucial to satisfy the engineer’s needs and to create optimal field self-sufficiency.
Improving toilet posture
Design of an adjustable toilet footrest
The Pentaport
Designing a safe gateway for complex endovascular aortic repair
“A ruptured AAA [Abdominal Aortic Aneurysm] is the 15th leading cause of death in the country, and the 10th leading cause of death in men older than 55” in the United States, states Singh (n.d.), in the Society for Vascular Surgeons. Such Abdominal Aortic Aneurysms (AAA, see Figure 2.2) are increasingly treated by endovascular surgery, during which stent grafts are placed in the ballooned vessel through access sites such as the femoral (thigh) arteries, a procedure called Endo Vascular Aneurysm Repair (EVAR). 10% of patients has an aneurysm near significant arteries (Mayo Clinic, 2019), called a complex AAA, requiring stent grafts fitted with fenestrations (FEVAR, see Figure 2.1) or side branches (BEVAR). After puncture of the femoral artery, an introducer sheath is placed in the vessel, functioning as a re-usable access point to the arterial system. The sheath prevents blood from flowing out of the artery and enables entrance of tools such as guide wires, catheters and smaller sheaths into the arteries. However, treatment of complex AAA requires introduction of multiple tools (up to 5) through the sheath simultaneously, compared to just one or two during EVAR. With every additional tool being introduced, the valve’s capability of adequate closure is reduced even more. This results in leakage that can lead to significant blood loss for the patient. The Pentaport is a new, safe gateway for complex endovascular aortic repair (Figure 2.3). It functions as an add-on for commonly used sheath models. A leakproof ‘plug & screw’ connection facilitates safe and easy fastening to large-bore introducer sheaths. The Pentaport minimises blood leakage. Preventing severe blood losses of 2L or even more during one surgery, spares a heavy attack on the patient’s condition and eliminates the need for costly consequences, such as cell-saving or blood transfusion. In addition, it prevents the need for lengthy recatheterisation efforts (up to 60 minutes) and possible harm to the patient’s arteries. The design was evaluated and proof of concept was achieved, through functionality tests in simulated environments and usability tests with medical specialists. ...
“A ruptured AAA [Abdominal Aortic Aneurysm] is the 15th leading cause of death in the country, and the 10th leading cause of death in men older than 55” in the United States, states Singh (n.d.), in the Society for Vascular Surgeons. Such Abdominal Aortic Aneurysms (AAA, see Figure 2.2) are increasingly treated by endovascular surgery, during which stent grafts are placed in the ballooned vessel through access sites such as the femoral (thigh) arteries, a procedure called Endo Vascular Aneurysm Repair (EVAR). 10% of patients has an aneurysm near significant arteries (Mayo Clinic, 2019), called a complex AAA, requiring stent grafts fitted with fenestrations (FEVAR, see Figure 2.1) or side branches (BEVAR). After puncture of the femoral artery, an introducer sheath is placed in the vessel, functioning as a re-usable access point to the arterial system. The sheath prevents blood from flowing out of the artery and enables entrance of tools such as guide wires, catheters and smaller sheaths into the arteries. However, treatment of complex AAA requires introduction of multiple tools (up to 5) through the sheath simultaneously, compared to just one or two during EVAR. With every additional tool being introduced, the valve’s capability of adequate closure is reduced even more. This results in leakage that can lead to significant blood loss for the patient. The Pentaport is a new, safe gateway for complex endovascular aortic repair (Figure 2.3). It functions as an add-on for commonly used sheath models. A leakproof ‘plug & screw’ connection facilitates safe and easy fastening to large-bore introducer sheaths. The Pentaport minimises blood leakage. Preventing severe blood losses of 2L or even more during one surgery, spares a heavy attack on the patient’s condition and eliminates the need for costly consequences, such as cell-saving or blood transfusion. In addition, it prevents the need for lengthy recatheterisation efforts (up to 60 minutes) and possible harm to the patient’s arteries. The design was evaluated and proof of concept was achieved, through functionality tests in simulated environments and usability tests with medical specialists.
Designing a product-service ecosystem in humanitarian aid
Utilizing eVTOL vehicles in immunization programs for East Africa
A Vision for LEFV 2031 and an accompanying Roadmap describe the expected developments in the domain of light electric vehicles and wireless charging in the (near-)future.
The charger enables the customer to fluently integrate the cargobike into their fleetmanagement system through wireless connectivity. Remote monitoring enables Tiler and the customer to keep track of the bicycle and the batteries, preventing unpleasant surprises. Tiler Cargo is the connecting element for incorporating the cargobike into sustainable city logistics. ...
A Vision for LEFV 2031 and an accompanying Roadmap describe the expected developments in the domain of light electric vehicles and wireless charging in the (near-)future.
The charger enables the customer to fluently integrate the cargobike into their fleetmanagement system through wireless connectivity. Remote monitoring enables Tiler and the customer to keep track of the bicycle and the batteries, preventing unpleasant surprises. Tiler Cargo is the connecting element for incorporating the cargobike into sustainable city logistics.
With the stoppage sensor of Octo Facility Management, there is an opportunity to create a difference in public health, by making it more convenient to execute these water safety plans. Tap points within these facilities need to be weekly flushed for at least two minutes to make sure there is no stagnant water in the water pipe system. The sensor registers if a tap point is used, eliminating the tap points that already have been refreshed during the week. This method can save a lot of water, time and money, and also creates a much better overview of actual risks of legionella contamination in buildings. Subject to this graduation project was to improve the technical performance and usibility of the sensor.
The new generation sensor is improved in usability, by creating a vision for the installation process and general use of the product. Guiding the user with a step-by-step guide through the installation process, the user is able to install the sensor without the help of Octo. The sensor itself is designed in a way that it is easy to install and easy to understand by colour coded clamps.
With the use of a reference sensor the sensor output can be validated to meet the legionella prevention regulations. New use of data can also initiate the discussion in how the regulations can be interpreted differently. ...
With the stoppage sensor of Octo Facility Management, there is an opportunity to create a difference in public health, by making it more convenient to execute these water safety plans. Tap points within these facilities need to be weekly flushed for at least two minutes to make sure there is no stagnant water in the water pipe system. The sensor registers if a tap point is used, eliminating the tap points that already have been refreshed during the week. This method can save a lot of water, time and money, and also creates a much better overview of actual risks of legionella contamination in buildings. Subject to this graduation project was to improve the technical performance and usibility of the sensor.
The new generation sensor is improved in usability, by creating a vision for the installation process and general use of the product. Guiding the user with a step-by-step guide through the installation process, the user is able to install the sensor without the help of Octo. The sensor itself is designed in a way that it is easy to install and easy to understand by colour coded clamps.
With the use of a reference sensor the sensor output can be validated to meet the legionella prevention regulations. New use of data can also initiate the discussion in how the regulations can be interpreted differently.