Delft University of Technology

A 500 m deep multipurpose research borehole and monitoring station in Delft, the Netherlands

The 500 m deep DAPGEO-02 multifunctional research borehole and monitoring station was drilled in Delft in spring 2022. Dinoflagellate biostratigraphy reveals that the borehole goes through the Neogene Upper North Sea Group, including the Waalre, Maassluis, Oosterhout, Diessen, an...

Assessment of change in drug-induced parkinsonism in daily-life gait using vision-based machine learning

Drug-induced parkinsonism is a potentially reversible movement disorder that may be subtle and difficult to monitor in residential dementia care. Vision-based machine learning analysis of gait may provide unobtrusive longitudinal monitoring around medication changes. We conducted...

Reduction of off-flavour formation and improved α-oligoglucoside utilization enable use of Saccharomyces eubayanus as a novel lager brewing yeast

Abstract Lager beer, made by fermentation of barley malt using the hybrid yeast Saccharomyces pastorianus, is extremely popular worldwide. The low genetic variation of S. pastorianus strains limits the scope of development for novel lager beer types. The wild ancestor Saccharomyc...

Earth Surface Controlled Wavefields in Ground-Penetrating Radar Responses

Abstract Ground-penetrating radar (GPR) data are commonly collected with the transmitting and receiving antennas in close proximity. Small transmitter – receiver offsets mean the direct waves can dominate or even saturate the receiver, masking near-surface target responses and po...

MONKI: a three-dimensional Monte Carlo simulator for transfer of polarised light in planetary atmospheres

Abstract. Spectropolarimetry is a powerful tool for characterising planetary atmospheres and surfaces. For the design and operation of spectro(polari)metric instrumentation, numerically simulated signals of the measured radiation are essential. Here we present MONKI (Monte Carlo...

Titanium and polyetheretherketone for spinal fusion cages: a comparative narrative review of material behavior, structural design, and clinical translation

Cage material selection in spinal fusion requires a trade-off among biological fixation, mechanical compatibility, subsidence resistance, and postoperative imaging. This structured narrative review compares titanium and polyetheretherketone (PEEK) cages across seven domains: osse...

Design for Safety and Resilience: Looking Underneath the Safety-I and II Labels

Ten years ago, Safety-II was introduced as a new approach to safety and contrasted with the existing approach (Safety-I), which emphasized learning from work as done in practice and the adaptive capacity of professionals who manage to deliver safe care in challenging circumstance...

REScoops acting as intermediaries, influencing the scaling of energy communities; a multi-case analysis of five pilots in Europe

There is increasing scholarly attention to the scaling of energy communities (EC). Intermediaries have an important role here. Energy communities themselves, especially in the form of renewable energy cooperatives (REScoops), can take on this role very well. This paper addresses...

Wing Structural Sizing Insights for a Large Battery-Electric Aircraft

Integrating batteries into the wing is a critical design choice in the development of battery-electric aircraft, offering significant benefits for structural weight reduction due to bending relief. To understand the influence of wing-integrated batteries on wing structures, this...

Greening cities to ensure biosphere functional integrity: Insights from Rotterdam and Lagos

The Earth Commission has proposed that 20-25% of every square kilometre of managed lands, including in cities, be reserved for nature to ensure its local functioning and human wellbeing -biosphere functional integrity boundary (BFI). This research adopted a multi-method justice-o...

Faithful Universal Graphs for Minor-Closed Classes

Abstract. It was proved by Huynh et al. [ Universality in Minor-Closed Graph Classes, preprint, arXiv:2109.00327, 2021] that any countable graph containing every countable planar graph as a subgraph has an infinite clique minor. We prove a finite, quantitative version of this res...

Assessing power system vulnerability to climate-related stressors and shocks: The case of Indonesia

Climate change and extreme weather are increasing the vulnerability of power systems globally, particularly in emerging economies such as Indonesia. Yet, existing studies often assess these impacts in isolation, focusing on individual components or specific hazards, leaving syste...

Decoded Antarctic snow accumulation history reconciles observed and modeled trends in accumulation and large-scale warming patterns

Increased snow accumulation on the Antarctic Ice Sheet mitigated global sea level rise by ∼ 11 mm during 1901–2000 according to ice core reconstructions. However, in the most recent 40 years of more intense observation and warming, the trend in the Antarctic-wide accumulation rat...

Noncommutative Orbital Stability of Stochastic Patterns in Banach Spaces

Abstract. We consider stochastic perturbations of PDEs which have special pattern solutions, such as (nonlinear) traveling waves, solitons, and spiral waves. We show orbital stability of these patterns on a timescale which is exponential in the inverse square of the noise amplitu...

Test Case Selection for Deep Neural Networks: A Replication Study on LLMs for Code (Replicability Study)

Test case selection (TCS) techniques have been explored to support the operational evaluation of deep neural networks (DNNs) under limited testing budgets, where labeling cost is a primary concern and early model failure detection is a key objective. Although prior studies report...

Lifting the maximally-entangledness assumption in robust self-testing for synchronous games

Robust self-testing in non-local games allows a classical referee to certify that two untrustworthy players are able to perform a specific quantum strategy up to high precision. Proving robust self-testing results becomes significantly easier when one restricts the allowed strate...

On the exclusion of the excluded middle law and quantum mechanics

We argue that limitations arise when using non-constructive mathematics (NCM) as a foundation for quantum mechanics, since the Boolean logical substrate of NCM fits a distributive propositional structure, but fits less naturally into the non-distributive lattice of quantum propos...

Mediterranean cyclones from pre-industrial to future climate: changes in extreme wind, precipitation and compound precipitation–wind events

The Mediterranean is a major extratropical cyclone hotspot and heavily impacted by climate change. The aim of this study is to investigate the impact of future climate change with respect to pre-industrial conditions on extreme cyclones (EXCs) which induce extreme wind, precipita...

Evaluating Smartphone LiDAR for Road Infrastructure Mapping: Harmonisation of iPhone LiDAR Data with National Airborne LiDAR Datasets

National airborne laser-scanning campaigns, such as the Dutch AHN update, run on multi-year cycles, leaving newly built infrastructure undocumented for years. This study investigates whether smartphone LiDAR can close that gap by harmonising iPhone-acquired point clouds with the...

Ten-second electron-spin coherence in isotopically engineered diamond

Abstract Solid-state spin defects are a promising platform for quantum networks. A key requirement is to combine long ground-state spin-coherence times with a coherent optical transition for spin-photon entanglement. Here, we investigate the spin and optical coherence of single n...