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Li, Shizhen (author), Jiang, Jing (author), Liu, X. (author), Wang, S. (author), Zhang, Zhonghua (author), Ye, Huaiyu (author)
Substrate metallization is a crucial factor affecting the mechanical properties of sintered nanoparticles in microelectronics applications, as it is essential for ensuring good adhesion between the substrate and the sintered material. In this study, we investigated the influence of metallization on pressure-assisted nanocopper sintering and...
conference paper 2023
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Zhang, Shuyu (author)
In the new media era, media architecture often serves as attractive urban spectacles and is widely represented and promoted on social media. Meanwhile, images and videos on social media also have an impact on the place identity and media architecture in the urban experience. This study argues that social media expands the conceptual scope of...
conference paper 2023
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Hamida, A.B. (author), Zhang, D. (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author)
During the COVID-19 outbreak, university courses were shifted online and students spent the majority of their time inside their homes. However, staying indoors can affect students’ health due to the exposure to several environmental stressors, such as background noise, and/or inefficient ventilation, and/or insufficient lighting. Previous...
conference paper 2022
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Zhang, D. (author), Ding, Er (author), Bluyssen, P.M. (author)
Several recent studies have demonstrated that ventilation plays an important role in the transmission of SARS-CoV-2 (the coronavirus that causes COVID-19) in public buildings, such as schools. However, there are no clear rules on how to assess the ventilation performance in classrooms, especially during a pandemic. Therefore, the main objective...
conference paper 2022
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Liu, Y.L. (author), Ortiz, Marco A. (author), Zhang, D. (author), Bluyssen, P.M. (author)
The airborne transmission of SARS-CoV-2 in educational buildings has raised concerns during the current COVID-19 pandemic. In this study, a portable fog generator system was designed and assembled to visualise the airflow pattern of exhaled droplets in a classroom. The system consists of five components: medium, fog generator, buffer, pump, and...
conference paper 2022
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Yao, Y. (author), Zhang, Q. (author), HU, Y. (author), Meo, C. (author), Wang, Y. (author), Nanetti, Andrea (author), Dauwels, J.H.G. (author)
We typically search for images by keywords, e.g., when looking for images of apples, we would enter the word “apple” as query. However, there are limitations. For example, if users input keywords in a specific language, then they may miss results labeled in other languages. Moreover, users may have an image of the object they want to obtain more...
conference paper 2022
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Ding, Er (author), Zhang, D. (author), Bluyssen, P.M. (author)
To investigate the sufficiency of ventilation during the COVID-19 pandemic for school children, a field study was conducted in 37 classrooms of 11 Dutch secondary schools between October 2020 and June 2021. All the classrooms were visited twice, before and after a three-month national lockdown, when different measures against COVID-19 were taken...
conference paper 2022
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Novoa Munoz, Mauricio (author), Howell, Bryan F. (author), Hoftijzer, J.W. (author), Rodríguez Díaz, José Manuel (author), Zhang, Wendy (author), Kramer, Nikolaj (author)
Digital technologies have enabled design sketching to expand into new applications and domains. Inevitably, these new forms of visualisation require re-evaluating how we use drawing to see, visualise, understand, and fabricate products and services in design education and the profession. This paper presents a selection of discoveries after...
conference paper 2022
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Zhang, X. (author), Specht, M.M. (author)
There is an urgent need for educating the next generation of learners with digital tools and making use of digital practices and skills. Education on computational thinking (CT) is widespread around the world with a dominant focus on K- 12. Recently also higher education has come more to the focus of CTE. However, most of the work on CT in...
conference paper 2022
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van Ellen, Layla A. (author), Belling, Anne-Sofie (author), Brandić Lipińska, Monika (author), Nerlich, Paula (author), Azzopardi, Harry (author), Ciardullo, Christina (author), Dade-Robertson, Martyn (author), Holt, Amy (author), Hyry, Niina (author), James, Paul (author), James MacCowan, Richard (author), Deakin Roberts, Aled (author), Vermeulen, A.C.J. (author), Zhang, Meng (author)
Bio-Futures for Transplanetary Habitats (BFfTH) is a Special Interest Group within the Hub for Biotechnology in the Built Environment that aims to explore and enable interdisciplinary research on transplanetary habitats and habitats within extreme environments through an emphasis on the bio-social and biotechnological relations. BFfTH organized...
conference paper 2022
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Liu, Qilong (author), Breems, Lucien (author), Zhang, Chenming (author), Bajoria, Shagun (author), Bolatkale, M. (author), Rutten, Robert (author), Radulov, Georgi (author)
In the pursuit of ever larger bandwidths, in recent years GHz-rate continuous-time (CT) oversampled ADCs have been reported in literature that achieve bandwidths of hundreds of MHz and have even exceeded the GHz barrier [1]-[3]. As impressive as these bandwidths are for CT ADCs, the required ADC architectures are complex, are sensitive to...
conference paper 2022
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Si, Wai Man (author), Backes, Michael (author), Blackburn, Jeremy (author), De Cristofaro, Emiliano (author), Stringhini, Gianluca (author), Zannettou, S. (author), Zhang, Y. (author)
Chatbots are used in many applications, e.g., automated agents, smart home assistants, interactive characters in online games, etc. Therefore, it is crucial to ensure they do not behave in undesired manners, providing offensive or toxic responses to users. This is not a trivial task as state-of-the-art chatbot models are trained on large, public...
conference paper 2022
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Ji, X. (author), van Zeijl, H.W. (author), Romijn, J. (author), van Ginkel, H.J. (author), Liu, X. (author), Zhang, Kouchi (author)
The continuous trend to integrate more multi-functions in a package often involves, Heterogeneous Integration of multi-functional blocks in some kind of 3D stacking. The conventional flip chip for die-on-substrate technology applies solder for integration. However, solder joint integration has the disadvantages of restricting height, reflow...
conference paper 2022
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Zhang, Xinyu (author), Abbasi, Qammer H. (author), Fioranelli, F. (author), Romain, Olivier (author), Le Kernec, Julien (author)
Population ageing has become a severe problem worldwide. Human activity recognition (HAR) can play an important role to provide the elders with in-time healthcare. With the advantages of environmental insensitivity, contactless sensing and privacy protection, radar has been widely used for human activity detection. The micro-Doppler...
conference paper 2022
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He, C. (author), Yang, Z. (author), Zhang, P. (author), Li, S. (author), Naeimi, M. (author), Li, Z. (author)
Polygonal wear is a common type of damage on the railway wheel tread, which could induce wheel-rail impacts and further components failure. This study presents a finite element (FE) thermomechanical model to investigate the causes of wheel polygonal wear. The FE model is able to cope with three possible causes of polygonal wear: thermal...
conference paper 2022
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Zhang, X. (author), Valle Torre, M. (author), Specht, M.M. (author)
Our life is surrounded by digital devices. Engineering education is one of the cornerstones in higher education for future generations and computational thinking (CT) is deemed as a core component in various engineering curricula. The Delft University of Technology (TU Delft), is the largest technical university in the Netherlands and computing;...
conference paper 2022
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Li, Meng (author), Gao, Jianbo (author), Zhang, Zijian (author), Fu, Chaoping (author), Lal, C. (author), Conti, M. (author)
Shortest distance queries over large-scale graphs bring great benefits to various applications, i.e., save planning time and travelling expenses. To protect the sensitive nodes and edges in the graph, a user outsources an encrypted graph to an untrusted server without losing the query ability. However, no prior work has considered the user...
conference paper 2022
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Du, B. (author), Lin, Bin (author), Xie, Wei (author), Zhang, Weidong (author), Negenborn, R.R. (author), Pang, Y. (author)
This paper addresses the flexible formation problem for unmanned surface vehicles in the presence of obstacles. Building upon the leader-follower formation scheme, a hybrid line-of-sight based flexible platooning method is proposed for follower vehicle to keep tracking the leader ship. A fusion artificial potential field collision avoidance...
conference paper 2022
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Ji, X. (author), van Ginkel, H.J. (author), Hu, D. (author), Schmidt-Ott, A. (author), van Zeijl, H.W. (author), Vollebregt, S. (author), Zhang, Kouchi (author)
Advances in semiconductor device manufacturing technologies are enabled by the development and application of novel materials. Especially one class of materials, nanoporous films, became building blocks for a broad range of applications, such as gas sensors and interconnects. Therefore, a versatile fabrication technology is needed to...
conference paper 2022
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Martin, H.A. (author), Sattari, R. (author), Smits, E.C.P. (author), van Zeijl, H.W. (author), van Driel, W.D. (author), Zhang, Kouchi (author)
With an increasing demand for high-power electronics, the need to meet stringent automotive norms and better understand the critical failure mechanisms are crucial in order to improve their reliablity. To that end, we developed an in-situ reliability monitoring setup capable of actively measuring the thermal performance of the package during...
conference paper 2022
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