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CRITIQUE: A WORKSHOP TO ESTABLISH SHARED UNDERSTANDING AND CLEAR RESPONSIBILITIES BETWEEN design STUDENTS AND THEIR LECTURERS 24

CRITIQUE: A WORKSHOP TO ESTABLISH SHARED UNDERSTANDING AND C...

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24th International Conference on engineering and product design Education: Disrupt, Innovate, Regenerate and Transform, E and PDE 2022

作者： Brosens, Lore de Vos, Ellen Emmanouil, Marina Design Nexus Research Group Ghent University Belgium IMEC MICT UGent Belgium Department of Industrial Systems Engineering and Product Design Ghent University Belgium

ISBN: (纸本)9781912254163

With the new industries on the horizon, where design engineers will become facilitators of innovation that need to keep up with an array of new technologies, it is essential that our students are equipped with skills in line with this new role. From literature describing emerging paradigms (Skills for Industry 4.0, and 21st century skills) it becomes clear that students need life-long learning skills, which have been linked to reflective thinking and learning during critique. However, at our university we noticed that students needed to be assisted in this. Students seem unable to translate the discussion points during critique sessions to design actions or challenge teachers' feedback with counter arguments. Therefore, it is important to establish clear goals and consistency of actions between teachers. This paper will report on the development of such goals through a critique workshop with lecturers and focus groups with students. The outcome of the development is a template with responsibilities for both the feedback-giver (lecturer) and recipient (student). These responsibilities are categorized in actions before, during, and after the critique is given in an effort to trigger reflection at various moments. With this template we hope to provide different anchors for both student and lecturer to have insightful critique moments. By sharing our experiences, we wish to inspire other design engineering lecturer teams to try to come to their own shared understanding of what critique should entail and how responsibilities between lecturers and students are divided. © Proceedings of the 24th International Conference on engineering and product design Education: Disrupt, Innovate, Regenerate and Transform, E and PDE 2022. All rights reserved.

关键词： Students

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Exploring Users' Perspectives on a Solid-Enabled Personal Data Store Enhanced Streaming Service 25

Exploring Users' Perspectives on a Solid-Enabled Personal Da...

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2025 CHI Conference on Human Factors in Computing systems, CHI 2025

作者： Theys, Tim Van Hove, Stephanie Mechant, Peter Van Impe, Gill Heerinckx, Alexander Saldien, Jelle Imec-mict-UGent Department of Industrial Systems Engineering and Product Design Ghent University Ghent Belgium Imec-mict-UGent Department of Communication Sciences Ghent University Ghent Belgium Department of Product Development University of Antwerp Antwerpen Belgium

ISBN: (纸本)9798400713941

This study explores users' perceptions of integrating a personal data store to enhance personalized recommendations within a streaming service. Using a research-through-design approach and guided by Human Data Interaction principles (legibility, agency, and negotiability), we developed an enhanced streaming service prototype. This prototype was evaluated by experts (n=5), refined, and then used in two focus groups (n=19) to gauge participants' reactions to the personal data store integration and their willingness to share different data types for enhanced personalized streaming recommendations. The focus groups revealed mixed reactions to the personal data store, with users weighing curiosity against concerns. However, many of the implemented data transparency and control features helped to mitigate these doubts. By linking our findings to existing literature, we developed a set of design recommendations to help businesses and guide future research in building personal data store applications, further advancing the field of Human Data Interaction. © 2025 Copyright held by the owner/author(s). Publication rights licensed to ACM.

关键词： Human Data Interaction Personal Data Stores Personalized Recommendations Solid Streaming Services

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An extension of the Core Manufacturing Simulation Data standard to enhance the interoperability for discrete event simulation

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Procedia CIRP 2024年 130卷 1632-1637页

作者： Jiaqi Zhao El-Houssaine Aghezzaf Johannes Cottyn Department of Industrial Systems Engineering and Product Design Ghent University Technologiepark 46 Gent-Zwijnaarde 9052 Belgium Industrial Systems Engineering (ISyE) Flanders Make www.FlandersMake.be Belgium

Discrete event simulation are vital in building a manufacturing system. The emergence of the industrial metaverse increases the collaboration needs between simulation engineers. Data reuse between different simulation software applications could significantly lower manual modeling efforts and shorten the overall time of system construction. To achieve this, interoperability in discrete event simulation is a prerequisite. Core Manufacturing Simulation Data (CMSD) is a promising standard for exchanging discrete event simulation models. However, the current CMSD standard is insufficient to achieve full-scope interoperability between discrete event simulation software applications. In this paper, a case-driven iterative approach is applied to extend the CMSD standard. An initial extension is developed based on a first iteration. A method for exchanging models between different discrete event simulation software applications via the extension is proposed. With this method, the interoperability performance of the extension is evaluated by exchanging a representative set of discrete event simulation models between two simulation software applications, FlexSim and Visual Components, via self-developed “Import” and “Export” plug-ins. The result shows that 57.5% more attributes can be converted via the extension than the original CMSD standard.

关键词： Interoperability Discrete event simulation Core Manufacturing Simulation Data Data exchange

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Virtual commissioning of a 5-axis positioning system: a case study

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IFAC-PapersOnLine 2024年第19期58卷 935-940页

作者： Matthias Schamp Stijn Huysentruyt Steven Hoedt El-Houssaine Aghezzaf Johannes Cottyn Department of Industrial Systems Engineering and Product Design Ghent University Technologiepark 46 9052 Gent-Zwijnaarde Belgium Industrial Systems Engineering (ISyE) Flanders Make vzw www.FlandersMake.be

Traditional commissioning approaches, reliant on physical testing, face challenges such as downtime and error correction delays. Virtual commissioning offers a solution by enabling early error detection and correction through simulation. This study applies the virtual commissioning methodology on an industrial 5-axis positioning system, with not only digital I/O but also continuous signals and an external safety controller. Results indicate that while virtual commissioning requires additional modeling effort, the advantages of small-scale lab experiments are also applicable to this industrial system. The feasibility of the approach to automate the virtual commissioning proposed in earlier research is verified on this industrial use case.

关键词： Virtual Commissioning Digital Model Industrial Control Software Emulation Automation Programmable Logic Controllers

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Interoperability performance evaluation for discrete event simulation models: A step towards multi-level data exchange

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Procedia CIRP 2024年 128卷 72-77页

According to use scenarios, 3D-based virtual commissioning can be divided into three levels: machine, cell and plant. As virtual commissioning at each level focuses on different contents, corresponding applications are developed in different data models. The resulting 3D emulation and simulation models are thus not easily exchangeable or reusable. At machine level, a physics-based model is used to conduct emulation. While at plant level discrete event simulation models are quite common. A framework for exchanging 3D emulation and simulation models between software at different levels would stimulate model reuse and lower the effort for model creation. To date, no interoperability performance evaluation for discrete event simulation models has been presented. This paper investigates industrial standards and related work on discrete event model generation and data exchange. The interoperability performance of discrete event simulation tools is evaluated by the example case of exchanging models between two commercial tools (i.e., FlexSim and Visual Components) via Core Manufacturing Simulation Data and AutomationML. The result shows the former converts 7% more attributes than the latter. Furthermore, an element-based comparison is conducted to reveal overlaps and assess the potential of (partial) model reuse during the data exchange between 3D emulation and simulation models.

关键词： Multi-level interoperability Discrete event simulation design methodology tools technologies

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Towards net-zero manufacturing: carbon-aware scheduling for GHG emissions reduction

arXiv

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arXiv 2025年

作者： Mencaroni, Andrea Leyman, Pieter Raa, Birger De Vuyst, Stijn Claeys, Dieter Department of Industrial Systems Engineering and Product Design Ghent University Ghent Belgium Flanders Make Kortrijk Belgium

Detailed scheduling has traditionally been optimized for the reduction of makespan and manufacturing costs. However, growing awareness of environmental concerns and increasingly stringent regulations are pushing manufacturing towards reducing the carbon footprint of its operations. Scope 2 emissions, which are the indirect emissions related to the production and consumption of grid electricity, are in fact estimated to be responsible for more than one-third of the global GHG emissions. In this context, carbon-aware scheduling can serve as a powerful way to reduce manufacturing’s carbon footprint by considering the time-dependent carbon intensity of the grid and the availability of on-site renewable electricity. This study introduces a carbon-aware permutation flow-shop scheduling model designed to reduce scope 2 emissions. The model is formulated as a mixed-integer linear problem, taking into account the forecasted grid generation mix and available on-site renewable electricity, along with the set of jobs to be scheduled and their corresponding power requirements. The objective is to find an optimal day-ahead schedule that minimizes scope 2 emissions. The problem is addressed using a dedicated memetic algorithm, combining evolutionary strategy and local search. Results from computational experiments confirm that by considering the dynamic carbon intensity of the grid and on-site renewable electricity availability, substantial reductions in carbon emissions can be achieved. © 2025, CC BY-NC-SA.

关键词： Low emission

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Capturing Lifecycle System Degradation in Digital Twin Model Updating

arXiv

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arXiv 2025年

作者： Tang, Yifan Dehaghani, Mostafa Rahmani Wang, G. Gary Product Design and Optimization Laboratory School of Mechatronic Systems Engineering Simon Fraser University SurreyBC Canada

Digital twin (DT) has emerged as a powerful tool to facilitate monitoring, control, and other decision-making tasks in real-world engineering systems. Online update methods have been proposed to update DT models. Considering the degradation behavior in the system lifecycle, these methods fail to enable DT models to predict the system responses affected by the system degradation over time. To alleviate this problem, degradation models of measurable parameters have been integrated into DT construction. However, identifying the degradation parameters relies on prior knowledge of the system and expensive experiments. To mitigate those limitations, this paper proposes a lifelong update method for DT models to capture the effects of system degradation on system responses without any prior knowledge and expensive offline experiments on the system. The core idea in the work is to represent the system degradation during the lifecycle as the dynamic changes of DT configurations (i.e., model parameters with a fixed model structure) at all degradation stages. During the lifelong update process, an Autoencoder is adopted to reconstruct the model parameters of all hidden layers simultaneously, so that the latent features taking into account the dependencies among hidden layers are obtained for each degradation stage. The dynamic behavior of latent features among successive degradation stages is then captured by a long short-term memory model, which enables prediction of the latent feature at any unseen stage. Based on the predicted latent features, the model configuration at future degradation stage is reconstructed to determine the new DT model, which predicts the system responses affected by the degradation at the same stage. The proposed lifelong update method is evaluated with two real-world engineering datasets, e.g., battery degradation dataset from Oxford University, and flight engine degradation dataset from NASA. The test results demonstrate that the proposed update meth

关键词： NASA

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3D Audio + Augmented Reality + AI Chatbots + IoT: An Immersive Conversational Cultural Guide 1st

3D Audio + Augmented Reality + AI Chatbots + IoT: An Immersi...

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1st International Conference on eXtended Reality, XR SALENTO 2022

作者： Tsepapadakis, Michalis Gavalas, Damianos Koutsabasis, Panayiotis School of Science and Technology Hellenic Open University Patras Greece Department of Product and Systems Design Engineering University of the Aegean Syros Greece

ISBN: (纸本)9783031155451

Typical Augmented Reality (AR) cultural heritage (CH) guides adopt a visuo-centric approach, wherein visual virtual elements are superimposed onto the physical world. Recent research has investigated the use of Audio AR to evoke multisensory immersive experiences to visitors of CH sites adopting screen-free interfaces to ensure that user attention is not distracted from the physical exhibits. A parallel trend in the audience engagement programs of cultural institutions involves the employment of AI chatbots which are engaged in dialogues with visitors to provide meaningful responses to user questions. Herein, we present Exhibot, an intelligent audio guide system aiming at enhancing the user experience of CH site visitors. Exhibot represents the first-ever approach to combine Audio AR and chatbot technologies to enable natural visitor-exhibit interaction, while also leveraging IoT devices to contextualize the delivered information. The usability and utility of Exhibot has been tested in a case study in outdoors environment with the preliminary results indicating a very positive user experience. © 2022, Springer Nature Switzerland AG.

关键词： Augmented reality

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Does having a virtual body make a difference during cinematic vr experiences? 14

Does having a virtual body make a difference during cinemati...

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14th ACM SIGMM Workshop on Immersive Mixed and Virtual Environment systems, MMVE 2022

作者： Dzardanova, Elena Kasapakis, Vlasios Department of Product & Systems Design Engineering University of the Aegean Syros Greece Department of Cultural Technology & Communication University of the Aegean Lesvos Greece

ISBN: (纸本)9781450393829

Cinematic VR, either as an in-game cutscene or a standalone 360° 3D movie, is a widespread narration tool for stories unfolding through Immersive Virtual Reality (IVR) experiences. Commonly, users experience cinematics from a 3rd or 1st person perspective, while firmly positioned in specific proxemics zones of the characters or events they are meant to take in, with no interactivity options provided. This study examines whether having a virtual body (VB) amplifies users' emotional response, specifically their anxiety levels, and how dependent those are to the interpersonal distances between the VB and non-player characters. © 2022 ACM.

关键词： Virtual reality

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Exploring non-verbal cues and user attention in IVR with eye tracking technologies 14

Exploring non-verbal cues and user attention in IVR with eye...

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14th ACM SIGMM Workshop on Immersive Mixed and Virtual Environment systems, MMVE 2022

作者： Kasapakis, Vlasios Dzardanova, Elena Nikolakopoulou, Vasiliki Vosinakis, Spyros Xenakis, Ioannis Gavalas, Damianos Department of Cultural Technology & Communication University of the Aegean Lesvos Greece Department of Product & Systems Design Engineering University of the Aegean Syros Greece

ISBN: (纸本)9781450393829

This study is a between-groups preliminary evaluation of how Non-Verbal Cues (NVCs) impact participant attention and degree of social presence with an NPC. Participants are divided in two groups and witness an agent's monologue who features high-fidelity NVCs (motion-captured gaze, blinking, and lower facial expressions) in one group, but who has those "turned off"for the other. This study aims at establishing appropriate data collection methodology and scenario-related guidelines for follow-up experimentation with a higher volume of interaction variables, particularly real-time interaction between remotely located users. Initial results indicate that real-time tracked NVCs enhance engagement and social presence to variant degrees compared to low-fidelity automated cues. © 2022 ACM.

关键词： Eye tracking

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