- document
-
Sokolovskij, R. (author), Zhang, J. (author), Jiang, Yang (author), Chen, Ganhui (author), Zhang, Kouchi (author), Yu, Hongyu (author)Wide bandgap gallium nitride material has highly favorable electronic properties for next generation power and high frequency electronic devices. A less widely studied application is highly miniaturized chemical and gas sensors capable of operating in harsh environment conditions. In this work we present our recent developments on design,...conference paper 2018
- document
-
Cui, Z. (author), Chen, Xianping (author), Fan, Xuejun (author), Zhang, Kouchi (author)Interfacial properties of Cu/SiO2 in semiconductor devices has continued to be the subject of challenging study for many years because of its difficulties in experimentally quantifying the critical strength of interface. In this paper, a multi-scale modeling approach is built to characterize the interfacial properties between Cu and SiO2. In...conference paper 2018
- document
-
Chen, G. (author), Yang, J. (author), Hauff, C. (author), Houben, G.J.P.M. (author)We present LearningQ, a challenging educational question generation dataset containing over 230K document-question pairs. It includes 7K instructor-designed questions assessing knowledge concepts being taught and 223K learner-generated questions seeking in-depth understanding of the taught concepts. We show that, compared to existing datasets...conference paper 2018
- document
-
Chen, N. (author), Wang, M. (author), Alkim, Tom (author), van Arem, B. (author)Merging is a challenging task for automated vehicles. This paper proposes a strategy for connected automated vehicles (CAVs) to guide merging on-ramp vehicles efficiently while ensuring safe interactions with the mainline vehicles. Point-mass kinematic models are used to describe 2-D vehicle motion and receding horizon control is used to...conference paper 2018
- document
-
Chen, Y. (author), Voskov, D.V. (author), Khait, M. (author)The current situation with green gas emission requires the development of low carbon energy solutions. However, a significant part of the modern energy industry still relies on fossil fuels. To combine these two contradictory targets, we investigate a strategy based on a combination of CO2 sequestration with Enhanced Oil Recovery (EOR) in the...conference paper 2018
- document
-
Ganapathy, C. (author), Chen, Y. (author), Voskov, D.V. (author)A compositional formulation is a reliable option for understanding the complex subsurface processes and the associated physical changes. However, this type of model has a great computational cost, since the number of equations that needs to be solved in each grid block increases proportionally with the number of components employed, thereby...conference paper 2018
- document
-
Chen, Y. (author), Veer, F.A. (author), Copuroglu, Oguzhan (author), Schlangen, E. (author)In conventional concrete, replacing high-volume (more than 45%) of ordinary Portland cement (OPC) by supplementary cementitious materials (SCMs) is not a novel CO2 reduction method, whereas rarely in 3D printable concrete. This study attempts to explore the feasibility of using SCMs in 3D printable concrete. Initially, the existing binder mixes,...conference paper 2018
- document
-
Mesbah, S. (author), Chen, G. (author), Valle Torre, M. (author), Bozzon, A. (author), Lofi, C. (author), Houben, G.J.P.M. (author)MOOCs promised to herald a new age of open education.<br/>However, efficient access to MOOC content is still hard, thus unneces-<br/>sarily complicating many use cases like efficient re-use of material, or<br/>tailored access for life-long learning scenarios. One of the reasons for this<br/>lack of accessibility is the shortage of meaningful...conference paper 2018
- document
-
Wu, Yue (author), Liu, Xiuming (author), Li, Q. (author), Chen, Boxuan (author), Luo, Peng (author), Pronk, Arno (author), Mergny, Elke (author)By using inflatable moulds and then spraying cellulose-water mixture, one ice dome and two ice towers were built in Harbin in December 2016. During the whole process, form-finding of the inflatable moulds as well as the construction of these ice composite shell structures are very important for the final results.<br/>The mould for the ice dome...conference paper 2017
- document
-
Wang, H. (author), Nunez, Alfredo (author), Dollevoet, R.P.B.J. (author), Liu, Zhigang (author), Chen, Junwen (author)This study proposes a Bayesian network (BN) dedicated for the intelligent condition monitoring of railway catenary systems. It combines five types of measurements related to catenary condition, namely the contact wire stagger, contact wire height, pantograph head displacement, pantograph head vertical acceleration and pantograph-catenary contact...conference paper 2017
- document
-
Bao, Yingying (author), Chen, G. (author), Hauff, C. (author)Massive Open Online Courses (MOOCs) are a promising form of online education. However, the occurrence of academic dishonesty has been threatening MOOC certificates’ effectiveness as a serious tool for recruiters and employers. Recently, a large-scale study on the log traces from more than one hundred MOOCs created by Harvard and MIT has...conference paper 2017
- document
-
Streicher, Maximilian (author), Kortenhaus, Andreas (author), Altomare, Corrado (author), Gruwez, Vincent (author), Hofland, Bas (author), Chen, X. (author), Marinov, Krasimir (author), Scheres, Babette (author), Schüttrumpf, Holger (author), Hirt, Matthias (author), Cappietti, Lorenzo (author), Esposito, Andrea (author), Saponieri, Alessandra (author), Valentini, Nico (author), Tripepi, Giuseppe (author), Pasqualini, D.G.J. (author), Di Risio, Marcello (author), Aristodemo, Francesco (author), Damiani, Leonardo (author), Willems, Marc (author), Vanneste, Dieter (author), Suzuki, T. (author), Klein Breteler, Mark (author), Kaste, Dorothea (author)Overtopping wave loads on vertical structures on top of a dike have been investigated in several small scale experiments in the past. A large-scale validation for a mild foreshore situation is still missing. Hence the WALOWA experimental campaign was carried out to address this topic. In the present paper the objectives of the WALOWA project are...conference paper 2017
- document
-
Sun, Zhu (author), Yang, J. (author), Zhang, Jie (author), Bozzon, A. (author), Chen, Yu (author), Xu, Chi (author)Representation learning (RL) has recently proven to be effective in capturing local item relationships by modeling item co-occurrence in individual user's interaction record. However, the value of RL for recommendation has not reached the full potential due to two major drawbacks: 1) recommendation is modeled as a rating prediction problem...conference paper 2017
- document
-
Chen, G. (author), Davis, D.J. (author), Krause, Markus (author), Hauff, C. (author), Houben, G.J.P.M. (author)Massive Open Online Courses (MOOCs) aim to educate the world, especially learners from developing countries. While MOOCs are certainly available to the masses, they are not yet fully accessible. Although all course content is just clicks<br/>away, deeply engaging with a MOOC requires a substantial time commitment, which frequently becomes a...conference paper 2017
- document
-
Yu, C. (author), Chen, Jie (author), Ljung, Lennart (author), Verhaegen, M.H.G. (author)The continuous-time subspace identification using state-variable filtering has been investigated for a long time. Due to the simple orthogonal basis functions that were adopted by the existing methods, the identification performance is quite sensitive to the selection of the system-dynamic parameter associated with an orthogonal basis. To...conference paper 2017
- document
-
Brommet, O.D. (author), Schoenmaker, R. (author), Hertogh, M.J.C.M. (author), Kleijn van Willigen, G.R. (author), Chen, Y. (author)A proper allocation of risks and responsibilities is vital for the success of long-term maintenance contracts. This paper focuses on a method to identify an adequate allocation of responsibilities for the maintenance of waterworks. The Dutch agency recently started outsourcing the maintenance of their waterworks in DBFM contracts. In order to...conference paper 2017
- document
-
Davis, D.J. (author), Jivet, I. (author), Kizilcec, René F. (author), Chen, G. (author), Hauff, C. (author), Houben, G.J.P.M. (author)Social comparison theory asserts that we establish our social and personal worth by comparing ourselves to others. In in-person learning environments, social comparison offers students critical feedback on how to behave and be successful. By contrast, online learning environments afford fewer social cues to facilitate social comparison. Can...conference paper 2017
- document
-
Chen, J. (author), Liu, Xian (author), Ye, G. (author)Microcracks play vital roles in the prediction of the service life of concrete structure. Because microcracks in concrete structure are the preferential ingression channels for aggressive ions, e.g., chloride, sulphate, etc. However, microcracks have potentials to self-heal autogenously due to the continuous hydration of unhydrated cement,...conference paper 2016
- document
-
Zhang, Fan (author), Chen, Y. (author), Goni Ros, B. (author), GAO, Jian (author), Knoop, V.L. (author)Traffic congestion leads to delays and increased carbon dioxide (CO2) emissions. Traffic management measures such as providing information on environmental route costs have been proposed to mitigate congestion. Multi-criteria routing dynamic traffic assignment (MCR-DTA) models are needed to evaluate the effectiveness of such measures. This paper...conference paper 2016
- document
-
Khalilnezhad, H. (author), Chen, S. (author), Popov, M. (author), Bos, J.A. (author), de Jong, J.P.W. (author), van der Sluis, L. (author)This paper deals with the shunt compensation design of long 380kV-50Hz XLPE cables by simulating a double-circuit partially cabled connection with the transmission length of 80km in the Dutch transmission system. The proposed procedure for shunt compensation sizing is fully elaborated in this paper. Four sizing criteria are used to find the...conference paper 2016