Actualités
Une flotte de drones israéliens réussit sa mission de nettoyage des toits allemands
La technologie de nettoyage autonome de BladeRanger a impressionné la compagnie ferroviaire allemande Deutsche Bahn lors d’un programme pilote de 100 jours. Sa flotte de drones autonomes n’a eu qu’un seul objectif : nettoyer les toits en verre des gares. Ce...
Etats-Unis: Raytheon lourdement sanctionnée pour corruption sur des contrats d’armement au Qatar
New York - Raytheon, filiale du groupe américain d’aéronautique et de défense RTX, va payer plus de 950 millions de dollars pour, entre autres, fraude, corruption et violation de la législation sur l’armement. L’entreprise a mis «en danger la sécurité nationale des...
SpaceX remporte un énorme contrat de sécurité nationale
La Force spatiale américaine vient d’accorder à SpaceX la somme de 733,6 millions de dollars pour deux nouvelles commandes de lancements. Cette initiative vise à renforcer les capacités de lancement des États-Unis dans le cadre de la sécurité nationale, alors que la...
Thermistors Based on Polyethylene Composites with γ-Fe2O3/Multiwalled Carbon Nanotube Hybrid Fillers for Protection of Electronic Circuits
The objective of this research is to develop and characterize polyethylene composites with randomly and partially oriented hybrid filler (HF) based on multiwalled carbon nanotubes (MWCNTs) decorated with gamma iron (III) oxide (γ-Fe2O3) nanoparticles (Fe2O3/MWCNTs)....
3D Printed Metallic Pillar Nanomechanical Resonators Decorated with TiO2 Nanotubes for Highly Sensitive Environmental Applications
Micro and nanomechanical devices offer enhanced sensing capabilities for detecting biological and chemical small molecules. However, miniaturization necessitates advanced fabrication processes and complex measurement systems, hindering routine sensor analysis. While...
Conductive Graphene–Polyethylene Terephthalate Composite Yarns with Synergistic Multiwalled Carbon Nanotube Additives by Melt-Spinning
Conductive graphene yarns are pivotal for embedding electronic and intelligent capabilities into fabrics. The study presents successful fabrication of conductive graphene–polyethylene terephthalate (PET) composite yarns with synergistic multiwalled carbon nanotube...
A promising pullulan/PLA composite: Influence of pullulan in the scaffolds morphology constructed by 3D printing
Manufacturing three-dimensional scaffolds with significant rough and porous structures is advantageous in tissue regeneration approaches influencing cell growth. Thus, this work aims to study the effect of using different Pullulan contents (PULL) in the poly(lactic)...
Lightweight and conformal acousto-ultrasonic sensing network for multi-scale structural health monitoring: A review
Structural health monitoring (SHM) has been increasingly investigated for decades. Different physical principles have been developed for damage identification, such as electronics, mechanics, magnetics, etc., with different coverage (i.e., global, large-area, and...
Mechanical recycling of polyamide 6 and polypropylene for automotive applications
This study investigates the mechanical recycling of polyamide 6 (PA6) from discarded fishing nets and polypropylene (PP) from automotive battery scraps and household waste for automotive applications. The mechanical properties of both materials were evaluated through...
Fabrication and High Dielectric Properties of Sandwich-Structured Ba0.6Sr0.4TiO3/Polyvinylidene Fluoride Layered Composites with Multiscale Parallel Interfaces
Ba0.6Sr0.4TiO3/polyvinylidene fluoride (BST/PVDF) dielectric functional composites have been widely used in flexible wearable devices, capacitors, and energy storage devices. In addition to the ceramic phase type, polymer matrix type, composition, and interfacial...