Design of a silicon photonics circuit for quantum cryptography applications
Quantum Key Distribution (QKD) offers information-theoretic security based on the principles of quantum mechanics, representing a promising solution to the vulnerabilities of classical cryptographic protocols against advancing computational capabilities. To enable widespread deployment of QKD systems, a scalable, stable, and cost-effective platform is essential. In this context, silicon photonics emerges as a strong candidate, providing […]
Domain Adaptation from Simulation to Reality: A GAN- and MK-MMD-Based Transfer Learning Approach for Bearing Fault Diagnosis
Rolling bearings are critical components in industrial machinery, and their failures can lead to equipment downtime or safety hazards, making accurate fault diagnosis vital. While data-driven intelligent methods perform well with sufficient labeled data, acquiring large-scale fault data in real-world scenarios remains challenging. To address this issue, this paper proposes a fault diagnosis method combining […]
From PSNR to Frequency Evidence: Evaluating Super-Resolution Reliability on Low-SNR Fluorescence Channels
Existing super-resolution evaluation systems for fluorescence microscopy images struggle to effectively detect potential artifacts in weak signal reconstruction. This study aims to establish a multi-dimensional evaluation framework that integrates frequency-domain evidence to verify the reliability of super-resolution techniques under low signal-to-noise ratio (SNR) conditions. All ground-truth (HR) images used in this study are experimentally acquired […]
La DGA a commandé une version VTOL du système de mini-drones aériens de la Marine
Mis en œuvre depuis 2021 par les frégates de surveillance, les patrouilleurs hauturiers et certains sémaphores de la Marine nationale, le SMDM [Système de mini-drones de la Marine] a donné pleinement satisfaction jusqu’à présent. Conçu par Survey Copter [filiale d’Airbus Helicopters], il se compose d’une station de contrôle et de deux drones Aliaca, déployables en […]
Royal Navy transforms Wildcat helicopter into drone command hub in UK first
The UK’s Royal Navy has successfully transformed one of its Wildcat helicopters into an airborne command hub capable of receiving and managing live data from multiple drones during flight. The Wildcat helicopter crew utilized real-time information from two surveillance drones, called Puma and Providence, to located and track a moving vehicle. The data was instantly […]
Viasat launches dedicated satellite service portfolio for government UAV operations
LONDON, United Kingdom., Feb. 2, 2026 – Viasat, Inc. (NASDAQ: VSAT), a global leader in satellite communications, today announced its next-generation satellite service portfolio engineered to meet the evolving demands for government uncrewed aerial vehicle (UAV) operations. Designed to meet specific government requirements, the VuaLe portfolio supports UAV missions, providing flexibility, security and operational control through a […]
Drone imagery, field mapping for WA gold mine
Mining company Austin Metals has begun a high-resolution drone imagery and field mapping program at its Austin Gold Project in Western Australia. The company says the imagery and mapping, along with rockchip sampling, will lead to enhanced target identification. “It was very pleasing to be on site as the company commenced Phase 1 activities in the Northern […]
How IMUs are Enhancing Sensing to Aid Drone Navigation
Designers are looking to reduce the cost of drone systems for a wide range of applications but still need to provide accurate positioning data. This however is not as easy is it might appear. There are several satellite positioning systems, from the U.S.-backed GPS and European Galileo to NavIC in India and Beidou in China, […]
Additive Manufacturing of Ceramic Materials via Direct Ink Writing
In additive manufacturing technologies, the use of pastes and inks based on materials such as clay to create three-dimensional objects layer by layer has opened new possibilities in fields such as engineering and biomedicine. This review article aims to provide a comprehensive understanding of 3D printing of ceramic pastes through Direct Ink Writing (DIW), also […]
Avec le magnésium, Precision Additive veut propulser la technologie LPBF vers de nouveaux horizons
Avec la PA-300, Precision Additive revendique la plus rapide imprimante 3D métal LPBF dotée d’une intelligence artificielle sur le marché. Precision Additive, un équipementier basé aux États-Unis, a lancé sa première imprimante 3D métal : la PA-300. Fondé en 2023, cet équipementier est également un fournisseur de pièces de production à la demande. Les dirigeants de […]
Finition de surface dans les applications d’impression 3D médicale : impact sur l’efficacité des dispositifs
La finition de surface est l’une des dernières étapes du processus de fabrication additive qui influe sur les performances des pièces, en particulier dans des domaines critiques tels que la médecine. La nature couche par couche de la fabrication additive entraîne souvent des effets d’escalier et des irrégularités de surface qui peuvent compromettre la fonctionnalité, […]
Self-powered nanocomposite material detects its own cracks
A vibration-powered CFRP composite with piezoelectric nanomaterials detects internal cracks via electrical changes, enabling self-powered, wireless structural health monitoring. (Nanowerk News) A new multifunctional composite made of carbon fiber-reinforced polymers (CFRP) and piezoelectric materials can use vibrations to self-detect tiny cracks. This material could be used in the aerospace, automotive, and construction industries to monitor […]
Structure–Property Relationships of Boron Nitride-Reinforced Glass Fiber/Epoxy Laminated Composites
Advances in modern industry largely depend on the development of high-performance materials. In this study, the influence of hexagonal boron nitride (h-BN) filler on the performance of glass fiber/epoxy laminates was systematically investigated. Composites containing h-BN with different particle sizes (65–75 nm and 790 nm) and contents (0.2 and 0.4 wt.%) were fabricated, and their […]
Xenia Materials brings its 3D printing material expertise to an autonomous drone project
Material producer Xenia Materials recently supported the development of O.L.I.V.I.A. (Optimized Lightweight Intelligent Vehicle for Immediate Assistance), an autonomous drone designed to compete in the UAS Challenge 2025, held in the United Kingdom. The project is led by Fly-Mi EUROAVIA Milano, the student association of the Politecnico di Milano. This partnership marks the second consecutive year of cooperation between Xenia […]
Terahertz Localization and Classification for Damages in GFRP Composites Using Complex Network with Residual Attention Mechanism
Terahertz (THz) reflectometry has been employed to quality control of glass fiber-reinforced polymer (GFRP) composites in a nondestructive and contactless fashion. Owing to the relatively long wavelength of THz electromagnetic waves (300 um at 1 THz), as well as diffraction and absorption dispersion during propagation, THz imaging fails to visualize subtle damage in GFRP composites. […]
Structural Health Monitoring of CFRP Composite Structures Using a Hybrid CNN-Vision Transformer Model
Advanced Structural Health Monitoring (SHM) systems are essential for aging aerospace infrastructure and Carbon Fiber Reinforced Polymer (CFRP) structures. Though Lamb wave-based Non-Destructive Testing (NDT) effectively monitors CFRP, traditional methods struggle with complex wave patterns, environmental variations, and large data volumes from continuous monitoring. This research overcomes these limitations by developing an AI system that […]
«Produire aux Etats-Unis est un atout pour nos clients» : Arianegroup ouvre son premier site industriel sur le sol américain, via sa filiale Sodern
Annoncée le 15 janvier, la création de Sodern America marque la première présence industrielle d’ArianeGroup sur le sol américain. Le groupe, historiquement centré sur les lanceurs, développe depuis plusieurs années une activité d’équipementier spatial, dont Sodern est l’un des piliers, avec l’objectif de renforcer sa position sur le marché américain. Interrogé par L’Usine Nouvelle sur la difficulté […]
Data Centres dans l’Espace : Une Solution Futuriste ?
Imaginez un instant : des milliers de serveurs ultra-puissants tournant 24h/24, engloutissant des quantités astronomiques d’électricité et réclamant des litres d’eau par minute pour éviter la surchauffe. Aujourd’hui, en 2026, cette réalité asphyxie nos réseaux électriques et inquiète les écologistes comme les opérateurs de cloud. Et si la réponse à cette explosion des besoins en […]
Alpha Impulsion : le pari de la propulsion autophage (interview exclusive)
La start-up française Alpha Impulsion se distingue par sa technologie innovante de propulsion autophage, promettant un transport spatial plus propre et durable. Elle vient de remporter le prix de l’innovation de rupture pour les solutions européennes de lancement. Lors d’une interview, Marius Celette, P.-D.G. et cofondateur d’Alpha Impulsion, nous a fait part de sa vision de l’avenir […]
L’armée norvégienne va acquérir 16 lance-roquettes multiples sud-coréens K239 Chunmoo
En août 2024, chargé des exportations d’équipements militaires américains via le dispositif FMS [Foreign Military Sales], la Defense Security Cooperation Agency [DSCA] donna un avis favorable à la vente potentielle de 16 systèmes d’artillerie de longue portée M142 HIMARS [High Mobility Artillery Rocket System] à la Norvège pour un montant estimé à 580 millions de […]