bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance of steel moment‐resisting beam‐supporting column transfer structures under fire
Authors: Behnam Behrouz 
Published: July 2019

SummaryThis paper investigates the structural fire response of steel beam‐supporting column transfer structures. Two three‐story (Case 1) and seven‐story (Case 2) structures with different span lengths are designed first to withstand gravity and seismic loads. All the structural members are also designed to meet their required fire resistance ratings based on the ISO834 fire. The structural vulnerability is then evaluated under two fire scenarios: the natural fire as a uniform and the traveling fire as a nonuniform temperature distribution inside the structures. The fire loads are applied to the first story of the structures where the structural irregularity is evident. The natural fires are determined based on Eurocode 1 and based on different opening ratios of 0.04, 0.067, 0.08, 0.12, and 0.16 to provide different duration of the heating phase. The results indicate that under the uniform fire scenarios, Case 1 collapses after 134 min under the opening ratio of 0.04. As well, Case 2 collapses under the opening ratios of 0.04, 0.67, and 0.08 at 95, 142, and 160 min, respectively. The results also show that under the nonuniform fire with a size of 25%; Case 1 collapses at 89 min, and Case 2 collapses at 93 min. Although it is believed that the cases studied should logically remain stable under possible fire scenario, the results indicate that this is not a true presumption. The results of this study provide beneficial information about structural fire response of beam‐supporting column transfer structures as an important structural irregularity.
Modeling method for electrothermal cosimulation of high‐power IGBT
Authors: Jia Ying‐Jie , Xiao Fei , Duan Yao‐Qiang , Luo Yi‐Fei , Liu Bin‐Li , Huang Yong‐Le 
Published: July 2019

AbstractTo accurately simulate the electrical characteristics of high‐power insulated gate bipolar transistor (IGBT) applied under transient overload extreme conditions, this article presents an electrothermal modeling method based on PSpice and Simulink. In this method, the structural parameters of the IGBT module are accurately extracted through a scanning electron microscope, and the corresponding seven‐layer RC thermal network model is established in Simulink. Besides, a new lumped‐charge physical model is constructed in PSpice, which can accurately describe the electrical behaviors of IGBT at different temperatures by circuit simulation. Then, cosimulation under a multirate simulation strategy is realized through a Matlab script file, which controls both the PSpice circuit simulation and the Simulink thermal simulation. Finally, the method is verified through a short‐circuit experiment on an ABB 3.3 kV/1500 A high‐power IGBT module. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
Understanding decision processes in guessing games: a protocol analysis approach
Authors: Capra C. Mónica 
Published: July 2019

AbstractProtocol analysis, in the form of concurrent verbal ‘thinking aloud’ reports, is a method of collecting and analyzing data about cognitive processes. This approach can help economists in evaluating competing theories of behavior and in categorizing heterogeneity of thinking patterns. As a proof of concept, I tested this method in the context of a guessing game. I found that concurrent think aloud protocols can inform us about individual’s thought processes without affecting decisions. The method allowed me to identify game theoretic thinking and heterogeneous approaches to unravelling the guessing game. The think aloud protocol is inexpensive and scalable, and it is a useful tool for identifying empirical regularities regarding decision processes.
Comparison of Rep Rap and Davinci OSD Repositories: Is any Influence from Academic Origin?
Authors: Affonso Claudia Andressa Cruz , Atayde Gisele Rodrigues , Amaral Daniel 
Published: July 2019

AbstractThe open source design (OSD) is an autonomous community dedicated to design new hardware products, peer-to-peer, with collaborative design and intellectual property copyleft, using web platforms to share projects. The research about these platforms indicates absence of important configuration management features as versioning, headlines and coding. One possible explanation for such finding is that these products are developed by non-designers. This argument was investigated comparing projects from two OSD communities, on the same theme, but with different origins. The hypothesis is that academically-influenced communities present better design management practices for repositories than others created by non-specialists. The hypothesis was not verified and the results show that there is no difference in the proportion of BO types or level of detail. However, it was identified five distinct characteristics: those of academic origin the communication is better detailed, the purpose is associated with methodological support, the structure of information promotes redundancy, the target-audience is the technicians and the success of project is associated with the number of interactions.
Exploring Healthcare Systems Design Research and Practice: Outcomes of an International Meeting
Authors: Komashie Alexander , Lame Guillaume , Patou Francois , Ciccone Nicholas , Maier Anja , Clarkson P. John 
Published: July 2019

AbstractCurrent healthcare delivery challenges are multi-faceted, requiring multiple perspectives to be addressed using a systems approach. However, a significant amount of healthcare systems design research work is carried out within single disciplines or at best a few disciplines working together. There appears to be little deliberate attempt to draw together a wide range of disciplines committed to working together to overcome differences and tackle some of the complex challenges in healthcare delivery. In this paper, we report on the initial outcomes of such an international initiative that, in the form of a workshop held at the University of Cambridge, brought together researchers and practitioners from a wide range of disciplines to explore the foundations of a community for Healthcare Systems Design Research and Practice.
Robotic Care: A Low Cost Design to Assist Therapy for Brain Stroke Rehabilitation
Authors: Prieto Pablo , Auat Fernando , Escobar Maria , Vallejos Ronny , Maldonado Paula , Larrain Cristobal , Serey Martin 
Published: July 2019

AbstractA low cost robotic-assisted prototype for finger and hand rehabilitation of people affected by a stroke is presented. The system was developed by a team of undergraduate students led by a Design lecturer in collaboration with the Rehabilitation Unit of the Peñablanca Public Hospital in Chile.The system consists of a flexion sensor equipped glove, a hand exoskeleton and an Arduino control unit. The patient wears the glove in his healthy hand. When s/he performs movements with the healthy hand, the sensors register the flexion of the fingers and send this information to the servo motors installed in an exoskeleton attached to the affected hand. In this way, the affected hand reproduces the movement of the healthy hand. The system uses a combination of the mirror therapy (the patient sees his/her affected hand moving in the same way that the healthy hand does) and passive exercising (as the exoskeleton produces the movement of the hand affected by the stroke). The combination of two types of therapy in a single low cost system makes the present work unique. In the near future, the developed prototype will be used to validate the effectiveness of the new proposed robotic therapy.
Three Approaches to Design Engineering in the Health Domain: A Systemic Perspective
Authors: Pannunzio Valeria , Kleinsmann Maaike , Snelders Dirk 
Published: July 2019

AbstractThis paper proposes a categorization of existing approaches to healthcare-related engineering design based on systems thinking principles. Three existing approaches to healthcare-related engineering design are isolated which contribute differently to health systems fundamental purposes and interconnections. The three approaches are labeled as 'silent', 'overt', and 'convergent' health design. Each approach is defined and illustrated through an example. Following, practical advantages and disadvantages of each approach are discussed. A reflection is offered on the expected relevance of the convergent health design approach for present and future societal challenges in the health domain, and specifically on the recently growing field of e-health. Finally, open methodological challenges related to convergent health design are outlined and characterized as opportunities for future research.
A Methodology for Implementing a Product-Centred Bid Model for Suppliers
Authors: Guillon Delphine , Merlo Christophe , Villeneuve Eric , Vareilles Elise , Aldanondo Michel 
Published: July 2019

AbstractEarly phases of product development are critical for next phases and impact the product definition. During bid process, suppliers generate offers for a customer that must both meet customer's requirements and be realizable in terms of technical aspects, costs and due date. Our aim is to propose a methodology for implementing a generic bid model, composed of context parameters, customer's requirements, the product i.e. technical solution, its delivery process, and associated risks. Key Performance Indicators allow to evaluate different solutions. The bid model is exploited with two different approaches. First, we use Constraint Satisfaction Problems to formalize expert knowledge and identify variables/constraints and relations. Second, we use case database to reuse past experiences. This model and the methodology are applied with a company developing harbour cranes. An initialisation phase allows to define existing bid process. Then, the generic model is adapted through a specialisation phase, using specific knowledge from company's experts. Finally, the specific model is implemented and tested in an implementation phase. Future work will be focused on a software tool development.
A Pragmatic Approach Towards Leveraging Employee Competences by Use of Semantic Web Technologies
Authors: Ocker Felix , Vogel-Heuser Birgit 
Published: July 2019

AbstractGlobal competition in combination with the increasing specialization of labor requires organizations to leverage their employees' competences. The approach presented in this paper empowers organizations to do so in two ways. First, we give employers a lean tool to allocate their employees to current and upcoming projects and make informed decisions whether they should take on new projects. Secondly, we provide the means to identify potential areas for innovation by identifying blind spots of technology transfer. The approach presented relies on semantic web technologies, i.e. an ontology built in OWL and SPARQL queries. To increase usability, we realized a user interface based on a semi-formalized spreadsheet and a python script for the transformation.
Distinction of Domain-Specific and Cross-Domain Linkage Types for Engineering Change Management
Authors: Wilms Robert , Inkermann David , Cemmasson Vadym Finn , Reik Michael , Vietor Thomas 
Published: July 2019

AbstractEngineering Changes (ECs) are substantial elements of the design process of technical products and are in particular relevant for companies due to enormous additional costs and time delays they can cause. In order to better understand ECs and realize efficient Engineering Change Management (ECM), different approaches exist. One aspect of ECM are change propagation analysis, which try to analyze knock-on effects of an EC on other product elements or the development process. How ECs can propagate is in particular difficult to assess for complex products realized within different engineering domains (mechanical, electrical and software engineering). To address this challenge, ECs are classified, strategies to cope with ECs are presented and change propagation approaches are analyzed in this paper. Thereby a lack of indicators for cross-domain propagation is identified. To overcome this issue, the distinction of domain-specific and cross-domain linkage types is proposed and a set of linkage types is presented. Further research is motivated to integrate these linkage types in product models while also considering processes and organizational structures as additional dimensions of ECM.
Mapping the Progress in Agile Product Development: A Multi-Case Study
Authors: Schmidt Tobias Sebastian , Behrenbeck Jan , Burger Kevin , Hostettler Rafael , Paetzold Kristin , Zimmermann Markus 
Published: July 2019

AbstractThe more dynamic and unpredictable the development constraints, the more agile the development project should be to cope with and utilize inherent change. Especially in such contexts, aligning with the project's mission and vision, committing to next steps, and documenting the development path is challenging. To support the decision making process of self-organized agile development teams with an overview, a recent research paper proposes the Progress Map. The investigation at hand applies the Progress Map in semi-industrial development projects to empirically validate its applicability and performance in the form of a multi-case study. The results indicate that, given future refinements, this instrument can be valuable to plan, document, and communicate the progress of an agile development project.
A Conceptual Framework for Breakthrough Technologies
Authors: Hein Andreas Makoto , Brun Juliette 
Published: July 2019

AbstractBreakthrough technologies introduce a radically new capability or a drastic performance improvement. However, the existing engineering design literature does not specifically pay attention to them. In this paper, we present a conceptual framework for breakthrough technologies, aiming for a more detailed characterization of breakthrough technologies. First, based on a literature survey, we reflect on the relationship between breakthrough technology and innovation. In addition, we explore the relationship between breakthrough technologies at the component and system level. Next, we propose a conceptual framework with dimensions in which breakthroughs may occur and the corresponding expansion of concepts and knowledge, drawing from C-K theory. We subsequently apply the framework to the case of a laser sail-propelled interstellar probe. We conclude that the relationship between component and system-level breakthrough technologies requires further exploration. Furthermore, the coupling between the breakthrough technology and market breakthrough in the form of a new business model seems interesting for future work.
A Review of Affordances and Affordance-Based Design to Address Usability
Authors: Masoudi Nafiseh , Fadel Georges M. , Pagano Christopher C. , Elena Maria Vittoria 
Published: July 2019

AbstractMaier and Fadel pioneered Affordance-Based Design (ABD) based on Gibson's revolutionary theory of affordances and Norman's deployment of the concept in his book, “The Design of Everyday Things”. Gibson (1979) introduced the affordance concept into the discipline of Ecological Psychology to address the interactions between an object and an agent. The Ecological approach includes the direct perception of affordances for the user along with a consideration of the users’ biomechanics. However, as the concept of affordance was imported and utilized in different disciplines, including engineering design, some important aspects of Ecological theory were omitted.This paper is an attempt to review the definitions and different utilizations of the affordance concept focusing on the design of usable products to identify the different views and the missing elements. After addressing the divergent viewpoints of affordances, we provide recommendations to improve the usability aspects in ABD by considering direct perception and ergonomics. We claim that a design (based on affordances) that fails to address both criteria may result in a product that is less usable.
A Systematic Approach to Model Objectives in Predevelopment Projects
Authors: Richter Thilo Oliver , Albers Albert , Gesk Johannes Willi , Witt Jan-Hendrik 
Published: July 2019

AbstractThis contribution presents a systematic for the elicitation of objectives and the utilization of objectives to identify reference products. The systematic is based on existing meta models. The model of objectives as proposed in this research eases decision-making and outlines the next validation activities. A key success factor is the project transferability between teams, which is often necessary in predevelopment. This is ensured through comprehensibility of objectives which benefits from the linkage between the model of objectives and the knowledge base. The proposed systematic is applied to a predevelopment project which is used as case study. In the case study it has been shown that objectives can be used to identify reference products. The approach is validated in a live-lab setting with seven engineering teams with six graduate students, two engineers of an industrial partner and a research associate. Several workshops were used to train all members of the teams in the systematic. The effects of the systematic are assessed in dedicated interviews, a survey as well as with observation of the engineering teams during milestones and engineering activities between milestones.
A Theory-Driven Design Research Agenda: Exploring Dual-Process Theory
Authors: Cash Philip , Daalhuizen Jaap , Valgeirsdottir Dagny , Van Oorschot Robin 
Published: July 2019

AbstractDesign research faces a critical 'impact gap' where the potential for scientific and practical impact is yet to be fully realised. A key means of bridging this gap is the adoption of fundamental theory from other fields to support clarification and synergy in design research. In this paper we examine one of the main candidates for adoption: dual-process theory of cognition. Cognition forms a common element across much of the design literature and leads to fundamental dual-process theories of reasoning. While dual- process theory has started to be recognised in design research, its widespread recognition and potential utility have not been widely explored. Following a conceptual theory development approach we identify and logically describe interactions between dual-process theory and design research. We conclude the paper with a proposition of a design research framework with a core rooted in dual-process theory, and based on this, an agenda for theory-driven design research. This contributes to the debate on how to improve impact, and theoretical and scientific rigour in design research, and provides a concrete agenda for discussion and development within the community.
Designing Digital Technology for Service Work: Systematic and Participatory Approach
Authors: Watanabe Kentaro , Fukuda Ken 
Published: July 2019

AbstractDigital technology is dramatically changing our life, industry, and society. Recent evolution of digital technology is expected to significantly impact service work, such as healthcare and social welfare. Meanwhile, an insufficient understanding of service work and workers' needs leads to the failure of technology development and integration. To make digital technology better fit to values and work practices of service workers, various studies have been conducted, especially in the field of participatory design, interaction design, and service design. However, the contribution of engineering design to this topic is still limited. This paper proposes an engineering design approach to design digital technology for better integration in service work. This study combines a modelling method to represent specifications of digital technology and the participatory approach in alignment with the changing service work and workers' values. A case study of the mobile application system for elderly-care professionals is introduced to exemplify the effectiveness of the proposed method. This study intends to foster innovation of service work through digitalization.
Giving Meaning to Products Via a Conceptual Design Approach
Authors: Yaldız Naz , Bailey Mark 
Published: July 2019

AbstractAlthough the conceptual design is a fundamental process through which design decisions are made, its focus is on finding the right solution. Is finding the right solution enough for a good design? Defining the problem or applying a solution-focused process may not be enough to create the differences that must be present in today's variable conditions. This can be overcome through seeking meaning instead of seeking a solution. The purpose of this article is to develop an approach that focuses on seeking meaning for products by starting with a design-thinking approach to the conceptual design process in engineering design. Focusing on a search for meaning in engineering design will provide advantages, such as creating unique values and sustainable competition.
Holistic Digital Function Modelling with Graph-Based Design Languages
Authors: Elwert Michael , Ramsaier Manuel , Eisenbart Boris , Stetter Ralf 
Published: July 2019

AbstractGraph-based design languages offer a promising approach to address several major issues in engineering, e. g. the laborious manual transfer between CAD and CAE. Such languages generate a digital meta- or system model storing all relevant information about a design and feed this into any relevant CAE tool as needed to simulate and test the impact of any design variation on the resulting product performance. As this can be automated in digital compilers to perform systematic design variation for an almost infinite amount of parameters, such graph-based languages are a powerful means to generate viable design alternatives and thus permit fast evaluations.To leverage the full potential of graph-based design languages, possibilities are presented to expand their applicability into the domain of product functions. This possibilities allow to cohesively link integrative function modelling to product structures. This intends to close the gap between the early, abstract stages and the systematic, concrete design generation and validation with relevant CAE tools. In this paper, the IFM Framework was selected as integrated function model to be linked with the graph- based design languages.
Extracting and Analysing Design Process Data from Log Files of ICT Supported Co-Creative Sessions
Authors: Becattini Niccolo' , Cascini Gaetano , O'Hare Jamie Alexander , Morosi Federico , Boujut Jean-Francois 
Published: July 2019

AbstractThe observation of designers' behaviour in collaborative design activities and the analysis of protocols improved the understanding of how novel ideas emerge, what occurs among designers and, indirectly, what methods have a good impact on the outcomes. Yet, protocol analysis requires recording the design sessions, often in a simulated environment, thus introducing a bias in the observation. Moreover, the analysis takes up to 1000 times the duration of the observed design session. These limitations definitely hinder the scalability of this practice to large experiments in real operational environments.This paper investigates the possibility to use the data collected in log files, automatically recorded during collaborative design sessions assisted by an ICT design support tool, as a means to extract relevant information about the design process and ultimately to infer insights about co-designers' cognition during the session. In this perspective, the paper proposes a set of metrics tailored to an Augmented Reality-based collaborative design tool. The study has been carried about by processing the data collected in 5 real case studies conducted in three different design companies.