Search results | TU Delft Repositories

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Benefits of fully focused SAR altimetry to coastal wave height estimates: A case study in the North Sea

Schlembach, Florian (author), Ehlers, F. (author), Kleinherenbrink, M. (author), Passaro, Marcello (author), Dettmering, Denise (author), Seitz, Florian (author), Slobbe, D.C. (author)

Estimating the three geophysical variables significant wave height (SWH), sea surface height, and wind speed from satellite altimetry continues to be challenging in the coastal zone because the received radar echoes exhibit significant interference from strongly reflective targets such as sandbanks, sheltered bays, ships etc. Fully focused...

journal article 2023

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Algorithm to suppress drift for micro-mirror and other intensity modulated hydrogen sensors

Bannenberg, L.J. (author)

Here, a method to suppress drift in intensity-modulated sensors is presented that preserves the advantages of such sensors including simplicity and low-cost components. This method is illustrated using metal hydride-based optical hydrogen sensors that can reliably, accurately, and quickly sense hydrogen across a large concentration range....

journal article 2023

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Examining the assumptions of AI hiring assessments and their impact on job seekers’ autonomy over self-representation

Aizenberg, E. (author), Dennis, Matthew J. (author), van den Hoven, M.J. (author)

In this paper, we examine the epistemological and ontological assumptions algorithmic hiring assessments make about job seekers’ attributes (e.g., competencies, skills, abilities) and the ethical implications of these assumptions. Given that both traditional psychometric hiring assessments and algorithmic assessments share a common set of...

journal article 2023

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Hierarchical Memory Diagnosis

Cardoso Medeiros, G. (author), Fieback, M. (author), Gebregiorgis, A.B. (author), Taouil, M. (author), Poehls, L. B. (author), Hamdioui, S. (author)

High-quality memory diagnosis methodologies are critical enablers for scaled memory devices as they reduce time to market and provide valuable information regarding test escapes and customer returns. This paper presents an efficient Hierarchical Memory Diagnosis (HMD) approach that accurately diagnoses faults in the entire memory. Faults are...

conference paper 2022

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Application of a smart dosing pump algorithm in identifying real-time optimum dose of antiscalant in reverse osmosis systems

Mangal, M. Nasir (author), Yangali-Quintanilla, Victor (author), Salinas-Rodriguez, Sergio G. (author), Dusseldorp, Jos (author), Blankert, Bastiaan (author), Kemperman, Antoine J.B. (author), Schippers, Jan C. (author), Kennedy, M.D. (author), van der Meer, Walter G.J. (author)

The potential of membrane scaling control by a real-time optimization algorithm was investigated. The effect of antiscalant dosing was evaluated from the induction time measured in glass batch-reactors, and from the operational performance of a lab-scale reverse osmosis (RO) unit and two pilot-scale RO units. Step changes in the antiscalant...

journal article 2022

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Applicability of several rooted phylogenetic network algorithms for representing the evolutionary history of SARS-CoV-2

Wallin, Rosanne (author), van Iersel, L.J.J. (author), Kelk, Steven (author), Stougie, Leen (author)

Background: Rooted phylogenetic networks are used to display complex evolutionary history involving so-called reticulation events, such as genetic recombination. Various methods have been developed to construct such networks, using for example a multiple sequence alignment or multiple phylogenetic trees as input data. Coronaviruses are known...

journal article 2021

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Smart Method for Self-Organization in Last-Mile Parcel Delivery

van Duin, Ron (author), Vlot, T.S. (author), Tavasszy, Lorant (author), Duinkerken, M.B. (author), van Dijk, Bernd (author)

Parcel delivery operators experience an increasing pressure to meet the strongly growing demand for delivery services, while protecting city livability and the environment. Improving the performance of the last mile of delivery is considered key in meeting this challenge as it forms the most inefficient, expensive, and environmentally unfriendly...

journal article 2020

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Grid sense multiple access: A decentralized control algorithm for DC grids

van der Blij, N.H. (author), Ramirez Elizondo, L.M. (author), Spaan, M.T.J. (author), Bauer, P. (author)

Due to the distributed nature of future electrical power systems, decentralized control is essential for these grids. This paper shows that converters that have identical voltage thresholds switch off simultaneously even if some could have remained operational. Therefore, inadequate system and energy utilization can occur when decentralized...

journal article 2020

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A new quantitative approach to tree attributes estimation based on LiDAR point clouds

Fan, Guangpeng (author), Nan, L. (author), Chen, Feixiang (author), Dong, Yanqi (author), Wang, Zhiming (author), Li, Hao (author), Chen, Danyu (author)

Tree-level information can be estimated based on light detection and ranging (LiDAR) point clouds. We propose to develop a quantitative structural model based on terrestrial laser scanning (TLS) point clouds to automatically and accurately estimate tree attributes and to detect real trees for the first time. This model is suitable for forest...

journal article 2020

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Algorithmic climate change functions for the use in eco-efficient flight planning

van Manen, J. (author), Grewe, V. (author)

Aviation contributes significantly to anthropogenic climate change, and one promising possibility for mitigation is eco-efficient flight planning by avoiding climate sensitive regions with only small changes in the aircraft trajectories. Climate sensitive regions result from strong spatial variation of the global climate impact of local non-CO2...

journal article 2019

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Binets: Fundamental Building Blocks for Phylogenetic Networks

van Iersel, L.J.J. (author), Moulton, V.L. (author), de Swart, Eveline (author), Wu, Taoyang (author)

Phylogenetic networks are a generalization of evolutionary trees that are used by biologists to represent the evolution of organisms which have undergone reticulate evolution. Essentially, a phylogenetic network is a directed acyclic graph having a unique root in which the leaves are labelled by a given set of species. Recently, some...

journal article 2017

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Increasing accuracy of pulse transit time measurements by automated elimination of distorted photoplethysmography waves

van Velzen, M.H.N. (author), Loeve, A.J. (author), Niehof, S.P. (author), Mik, E.G. (author)

Photoplethysmography (PPG) is a widely available non-invasive optical technique to visualize pressure pulse waves (PWs). Pulse transit time (PTT) is a physiological parameter that is often derived from calculations on ECG and PPG signals and is based on tightly defined characteristics of the PW shape. PPG signals are sensitive to artefacts....

journal article 2017

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A composite plasticity model for concrete

Feenstra, P.H. (author), De Borst, R. (author)

journal article 1996

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Gradient plasticity in numerical simulation of concrete cracking

De Borst, R. (author), Pamin, J. (author)

journal article 1996

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A plasticity model and algorithm for mode-I cracking in concrete

Feenstra, P.H. (author), De Borst, R. (author)