Results 51 to 60 of about 183,357 (179)
Rotor Performance Predictions for Urban Air Mobility: Single vs. Coaxial Rigid Rotors
AerospaceThis work details the development and validation of a methodology for high-resolution rotor models used in hybrid Blade Element Momentum Theory Unsteady Reynolds Averaged Navier–Stokes (BEMT-URANS) CFD.
Jason Cornelius +4 more
doaj +1 more source
An Energy Autonomous Microneedle Array‐Based Sensing System for Continuous Biomarker Monitoring
Advanced Science, Volume 13, Issue 46, 17 August 2026.This work presents an innovative self‐powered wearable biosensor system for real‐time monitoring of multiple biomarkers in interstitial fluid. The device integrates stainless steel‐based minimally invasive microneedles with ion‐selective membranes, enabling simultaneous Na+, K+, Ca2+, pH, and glucose detection.
Arnab Pal +9 more
wiley +1 more source
Advanced Science, Volume 13, Issue 38, 9 July 2026.A rotational energy harvesting device that successfully reconciles high power density with mechanical durability through a hybrid sliding‐and‐bouncing kinematic mechanism is reported. The success reported in our paper includes addressing a dilemma where enhanced electrical output comes at the cost of increased friction and wear, limiting the practical ...
Yihong Lin +12 more
wiley +1 more source
Coaxial Rotor Flow Phenomena in Forward Flight [PDF]
SAE Technical Paper Series, 2016 <div class="section abstract"><div class="htmlview paragraph">Coaxial rotors are finding use in advanced rotorcraft concepts. Combined with lift offset rotor technology, they offer a solution to the problems of dynamic stall and reverse flow that often limit single rotor forward flight speeds.
Natasha Barbely, Narayanan Komerath
openaire +1 more source
Dispensing Volumetric Additive Manufacturing
Advanced Functional Materials, Volume 36, Issue 44, 1 June 2026.Dispensing volumetric additive manufacturing (DVAM) prints 3D structures inside a photocurable resin droplet suspended from the tip of a glass pipette, enabling sequential printing without resin vats or manual part removal. Real‐time droplet profiling and ray‐tracing‐based correction compensate for optical distortion at the curved resin‐air interface ...
Hongryung Jeon +5 more
wiley +1 more source
Helicopter tail rotor thrust and main rotor wake coupling in crosswind flight [PDF]
, 2010 The tail rotor of a helicopter with a single main rotor configuration can experience a significant reduction in thrust when the aircraft operates in crosswind flight. Brown’s vorticity transport model has been used to simulate a main rotor and tail rotor
Fletcher, Timothy M., Brown, Richard
core +4 more sources
Effect of wind disturbance on the aerodynamic performance of coaxial rotors during hovering
Measurement + Control, 2019 The ability to resist the effect of wind disturbance is vital for micro air vehicles. As the most compact rotor configuration for micro air vehicles, coaxial rotors will be the preferred choice for this type of devices.
Yao Lei, Rongzhao Lin
doaj +1 more source
Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications
Advanced Materials Technologies, Volume 11, Issue 12, 18 June 2026.Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke +3 more
wiley +1 more source
Aerodynamic Interaction Minimization in Coaxial Multirotors via Optimized Control Allocation
DronesCoaxial multirotors, characterized by overlapping rotors, represent a common solution to increasing payload capacity while maintaining a compact platform size.
Andrea Berra +2 more
doaj +1 more source
Developing Micro/Nanostructured Fluidic Mixing Technology for Biomedical Applications
Advanced Science, Volume 13, Issue 33, 15 June 2026.This review critically evaluates how micro/nanostructured mixing technologies are redefining biomedical research. By synergizing fundamental analysis, numerical modeling, structural design, and external field manipulation, these systems attain unprecedented control over mass transport.
Junkai Wang +3 more
wiley +1 more source