Technical University of Denmark

Local Droplet Etching‐Assisted Quantum Dot Epitaxy for Telecom C‐Band Quantum Light Emitters

ABSTRACT Significant progress in quantum light sources for quantum communication applications requires reproducible and symmetric quantum emitters acting as single‐photon sources capable of generating entangled photons on demand at specific telecom wavelengths. Here, we propose t...

Practical continuous-variable quantum key distribution with squeezed light

Continuous-variable quantum key distribution (CV-QKD) has gathered significant interest for its potential to achieve high secret key rates and seamless integration with existing optical communication infrastructure. State-of-the-art CV-QKD systems primarily use coherent states fo...

Fungal frontiers for sustainability: unlocking the hidden kingdom

Fungi have repeatedly delivered transformative advances across industries, from medicine to food to materials, yet these breakthroughs have emerged from a narrow base of organisms and well-studied systems. Although mycology has taken a big leap forward in the past decades because...

Phosphate Recovery from Arsenic-Laden Groundwater Treatment Sludge

Abstract In this work, we investigated phosphate (P) recovery via calcium phosphate (CaP) precipitation from P-rich solutions produced synthetically and derived from arsenic (As)-laden groundwater treatment sludges. We systematically altered key variables in synthetic experiments...

A Lean 4 formalization of Catalan's conjecture

We present a complete Lean 4 formalization of Catalan's conjecture, proved by Mihăilescu: 8 and 9 are the only consecutive positive proper perfect powers. The formalization follows the cyclotomic proof in Bilu's expositions. We describe how Cassels' relations, Stickelberger annih...

Thermodynamics and Kinetics of Ammonia‐Based Reduction of Natural Hematite

Using hydrogen gas for iron ore reduction offers carbon‐neutral ironmaking, but scaling up faces safety and energy challenges. Ammonia is a safer carbon‐free hydrogen carrier with higher energy density and ease of liquefaction. This study investigates the characteristics of ammon...

Fatigue crack growth in elastomers for leading-edge erosion protection of wind turbine blades

Abstract. Fatigue crack growth has been observed as a prominent damage mode in rain erosion of wind-turbine blades, where it is driven by cyclic pulse loading from liquid-droplet impacts. This study investigates fatigue crack growth in a thermoplastic polyurethane elastomer used...

From mandatory disclosure data to organisational decision-making guided by planetary boundaries

Organisations currently lack operational methods to assess how their activities contribute to returning society to within Earth's safe operating space, considering that seven of the nine planetary boundaries are currently exceeded. Although the mandatory Corporate Sustainability...

Pharmacological Analysis of P2Y Purinergic Receptors That Modulate the Rat Vasopressor Sympathetic Tone

Background/Objectives: Adenosine 5′-O-(β-thio)-diphosphate (ADPβS) is a stable analogue of adenosine diphosphate (ADP). In pithed rats, ADPβS produces (i) inhibition of both the cardioaccelerator sympathetic tone (via prejunctional P2Y12/P2Y13 receptors) and the vasodepressor sen...

Varying Mechanisms Dominate Formate Formation in Electrochemical CO2 Reduction on Cu, Au, and Pb: A Constant Potential DFT-Based Microkinetic Analysis

Abstract Electrochemical CO2 reduction offers a route to convert renewable electricity into fuels and chemicals while closing the anthropogenic carbon cycle. However, the technology struggles to surpass the lab scale as it is limited by low selectivity and energy efficiency. Thes...

The evolution of relationship management from remote to hybrid work

Purpose This study explores how first-line managers adapt relationship management practices during the transition from onsite to remote and hybrid work amid prolonged uncertainty. Design/methodology/approach A longitudinal case study using temporal bracketing analyzed 49 intervie...

Follow the e-riders: Travel behaviour change processes among e-bike adopters using a mixed-methods approach

Electric-assisted bicycles (e-bikes) represent a key example of how emerging technologies can influence travel patterns and broader sustainability transitions. While existing studies have examined motivations, substitution patterns, and behavioural impacts of e-bike adoption, lim...

Direct measurement of shear mobilisation in 3D-printed root analogues using distributed fibre-optic sensing

Root reinforcement can increase soil shear resistance, but the way individual roots deform and mobilise resistance during shearing remains difficult to observe directly. This study presents a controlled analogue methodology that combines scanned resin-based 3D-printed root geomet...

Review of Salmonid Alphavirus: Focus on Viral Survival, Shedding, Detection and Effects of Vaccination

ABSTRACT This review of salmonid alphavirus provides a collection of the most recent knowledge on the factors relevant for the transmission and control of the virus including updates on SAV survival, viral shedding, detection, and effects of vaccination as reported in peer‐review...

Navigating long-term offtake contracts in renewable fuel production

This repository contains the source file for reproducing the results and analyses of the article "Navigating long-term offtake contracts in renewable fuel production", which is submitted for Energy Economics. Access to the repository can be requested by reaching out to the corres...

Adaptive cut reveals multiscale complexity in networks

Abstract Hierarchical clustering and community detection are important problems in machine learning and complex network analysis. A common approach to identify clusters is to simply cut dendrograms at some threshold. However, single-level cuts are often suboptimal in terms of cap...

Postoperative Delirium and the Association to Continuously Monitored Severe Deviations of Vital Signs at the General Ward After Major Abdominal Surgery

ABSTRACT Background Delirium is the most frequent neurological complication after surgery and is associated with increased postoperative morbidity and mortality. The underlying pathophysiology is not fully understood, but is suggested to be multifactorial, including hypoperfusion...

Photonic integrated recurrent spectrum slicer enabling low complexity direct detection over 200 GBaud dispersive links

Abstract The rising demand for data-intensive workloads in the network is driving the development of scalable and energy-efficient optical communication infrastructure. Intensity modulation with direct detection (IM/DD) remains the preferred choice for cost-sensitive systems but...

Two novel methods of testing microalgae cell wall integrity using image based segment anything model or optical density spectrum analysis

Abstract The cost of disrupting microalgal cells to access valuable intracellular compounds is an industrial bottleneck. Screening for species with low cell integrity could reduce this cost, but existing suitable rapid methods are limited. This study investigated two novel approa...

Are fast test results preferable to high test sensitivity in contact-tracing strategies?

When an epidemic is spreading in a population, mitigation measures often rely on testing individuals, tracing possible secondary infections, and isolating known or suspected infected individuals. Because more accurate tests often take longer to analyse, and the benefits of contac...