Searched for: subject%3A%22aggregation%22
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van Wee, G.P. (author), de Jong, Tom (author)
This paper explores to what extent inequalities in travel times, measured via the Gini index, depend on the spatial scale at which (average) travel times are measured. By using the new concept of Dedicated Accessibility Points, for the Netherlands we calculated average travel times at four spatial levels, ranging from virtually individual...
journal article 2023
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Palazzo, Marco (author)
Large amounts of data are continuously generated by individuals, apps, or dedicated devices. These data can be aggregated to compute useful statistics from multiple sources using data aggregation protocols. However, oftentimes these data contain private information that must be protected from misuse. Privacy-preserving protocols can help to...
master thesis 2022
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Bisma Renata Artala, Bisma (author)
The benefit of secondary use of data leads to the belief that data can be monetized through exchanging and trading between businesses. Many new data marketplaces emerge from this, resulting in the heterogeneity of the data marketplace that leads to market fragmentation in the industry. The aggregator business model can offer various values to...
master thesis 2022
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Garg, Chirag (author)
In a high-precision system that performs measurements or tooling on a workpiece, alignment of the tool and workpiece is of prime importance. To prevent misalignment, which leads to a loss in accuracy and precision, unwanted vibrations in structures must be attenuated. Topology Optimization (TO) is evolving as a mature design tool that provides...
master thesis 2022
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Evans, Michael (author), Tindemans, Simon H. (author), Angeli, David (author)
This paper proposes a framework for the procurement of flexibility reserve from aggregated storage fleets. It allows for arbitrary tree structures of aggregation hierarchy, as well as easily implementable disaggregation via broadcast dispatch. By coupling discharge and recovery modes, the proposed framework enables full-cycle capacity to be...
journal article 2022
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Boereboom, Bram (author)
The Dutch government described its vision to achieve significant reductions in greenhouse emissions in the climate goals of 2030 and 2050. The energy infrastructure in the Netherlands will be a critical factor in achieving these goals. As an extension to the stated importance, understanding the current energy infrastructure is equally...
master thesis 2022
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Dijkhuis, Jeffry (author)
A profound change is occurring in the Dutch energy system and significant growth in energy production from renewables can be observed. This requires flexibility solutions to balance the demand and supply of electricity. As described by the European Union in the Clean Energy Package, aggregators have the important responsibility to provide this...
master thesis 2022
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Joosen, Floor (author)
Privacy and security are important topics in data aggregation, as companies are aggregating large amounts of sensitive data from their users. The aim of this paper is to improve the security and privacy of data aggregation using smart contracts, homomorphic encryption and post-quantum encryption methods on Hyperledger Fabric. After a literature...
bachelor thesis 2022
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Fu, Danny (author)
In recent years, the area of structural engineering has found new interesting prospects in the theory of waves. The acoustoelastic properties of materials are utilized in a new promising structural health monitoring (SHM) technique. The propagation of ultrasonic waves through stressed elements gives the ability to find invaluable information on...
master thesis 2022
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Niu, D. (author), Zhang, Zhao (author), Meng, Jiandang (author), Yang, Zhengxian (author), Jing, R. (author), Liu, X. (author), Lin, P. (author), Sheng, Yanping (author)
The proper disposal of steel slag has always been a great challenge for the metallurgical industry in China and around the world. In this work, the steel slag aggregate (SSA) was surface pretreated (PSSA) and applied into asphalt mixture. The adhesive behavior between the bitumen and five different types of aggregates (i.e., limestone, diorite,...
journal article 2022
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Kulshreshtha, Y. (author), Vardon, P.J. (author), Meesters, G.M.H. (author), van Loosdrecht, Mark C.M. (author), Mota, Nelson (author), Jonkers, H.M. (author)
The water-resistance of cow-dung has made it a widely used stabiliser in traditional earthen structures in several Asian and African countries. Multiple studies have shown an improvement in water-resistance with the addition of cow-dung, but none provides insight into this behaviour. The present study investigates the water-resistance behaviour...
journal article 2022
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Pradena, Mauricio (author), Houben, L.J.M. (author), César, Andrés (author)
Generally, joint performance in concrete pavements is evaluated in laboratory by applying dynamic loads that require large scale experimental setups. In order to propose a simplified laboratory test, a comprehensive literary review of the fundamentals of load transfer at joints is made, and the load transfer efficiency obtained via a reduced...
journal article 2022
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Dubey, S.K. (author), Cats, O. (author), Hoogendoorn, S.P. (author), Bansal, Prateek (author)
Several non-linear functions and machine learning methods have been developed for flexible specification of the systematic utility in discrete choice models. However, they lack interpretability, do not ensure monotonicity conditions, and restrict substitution patterns. We address the first two challenges by modeling the systematic utility...
journal article 2022
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Kamphorst, R. (author), Wu, K. (author), Salameh, S. (author), Meesters, G.M.H. (author), van Ommen, J.R. (author)
The fluidization of cohesive powders has been extensively researched over the years. When looking at literature on the fluidization of cohesive particles, one will often find papers concerned with only micro- or only nano-sized powders. It is, however, unclear whether they should be treated differently at all. In this paper, we look at...
journal article 2022
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Deng, Zhirui (author), Huang, Dong (author), He, Qing (author), Chassagne, C. (author)
Sediment is found throughout the world’s alluvial plain rivers, estuarine coasts and adjacent seas and is thereby a key factor in major ecosystems. Suspended mineral sediment can affect the biological activity of microorganisms and plants, by reducing light penetration in the water column or by binding to organic matter. Biological processes...
review 2022
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Zomerdijk, W. (author), Gusain, D. (author), Palensky, P. (author), Cvetkovic, M. (author)
A numerical model of a power system can be used to get accurate insights into the impact of policies and investment decisions regarding the transformation of the energy system, while also helping in identifying bottlenecks in implementing decisions. Spatial aggregation, especially for generation and load, must be carefully approached to obtain...
conference paper 2022
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Neves Sao Pedro, M. (author), Silva dos Santos, M. (author), Eppink, Michel H.M. (author), Ottens, M. (author)
A major challenge in the transition to continuous biomanufacturing is the lack of process analytical technology (PAT) tools which are able to collect real-time information on the process and elicit a response to facilitate control. One of the critical quality attributes (CQAs) of interest during monoclonal antibodies production is aggregate...
journal article 2022
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Setiadji, Bagus Hario (author), Wibowo, M. Agung (author), Jonkers, H.M. (author), Ottele, M. (author), Qomaruddin, Mochammad (author), Sugianto, Felix Hariyanto (author), Lie, Han Ay (author)
Asphalt pavement consists of aggregates resulting in a waste material at end of its life. The aggregates can be reused as basic material for asphalt or cementitious binding agents. In both scenarios, the recycled aggregates should provide a good bond with the binder to achieve strength. This study focuses on reusing recycled asphalt...
journal article 2022
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Nasrulin, B. (author), Ishmaev, G. (author), Pouwelse, J.A. (author)
Decentralized reputation schemes present a promising area of experimentation in blockchain applications. These solutions aim to overcome the shortcomings of simple monetary incentive mechanisms of naive tokenomics. However, there is a significant research gap regarding the limitations and benefits of such solutions. We formulate these trade-offs...
conference paper 2022
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Wang, Fu (author), Zhu, Hongbin (author), Shu, Benan (author), Li, Yuanyuan (author), Gu, Dengjun (author), Gao, Y. (author), Chen, Anqi (author), Feng, Jianlin (author), Wu, Shaopeng (author)
Traditional asphalt mixtures can't absorb microwave energy efficiently, which limits the development of microwave heating technology in the field of road maintenance. Based on the microwave heating characteristics of basalt aggregates, the overall microwave self-healing rate of the asphalt mixture can be enhanced. The basalt was tested by XRF,...
journal article 2022
Searched for: subject%3A%22aggregation%22
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