Results 81 to 90 of about 7,767,476 (330)
Advanced Materials, EarlyView.This work introduces an injectable mesoporous silica rod scaffold that confines lentiviral vectors to the injection site, enabling localized dendritic cell recruitment and transduction. The platform sustains antigen expression, promotes robust T‐cell activation, and enhances antitumor immunity.
Thanh Loc Nguyen +12 more
wiley +1 more source
PRESSURE THEORY OF HELICOPTER ROTOR
Вестник Донского государственного технического университета, 2018 A new theory of determining the principal aerodynamic characteristics of the propeller is offered.
Sergey P. Lisin
doaj
Aerodynamic Optimization Design of an Orthogonal Octo-Rotor UAV in a Hovering State
DronesThis paper presents a novel orthogonal octo-rotor Unmanned Aerial Vehicle (UAV) and addresses the aerodynamics of the UAV with varied rotor spacing by both numerical simulations and experiments.
Yao Lei +5 more
doaj +1 more source
Research investigation of helicopter main rotor/tail rotor interaction noise [PDF]
Acoustic measurements were obtained in a Langley 14 x 22 foot Subsonic Wind Tunnel to study the aeroacoustic interaction of 1/5th scale main rotor, tail rotor, and fuselage models.
Fitzgerald, J., Kohlhepp, F.
core +1 more source
Performance and wake analysis of rotors in axial flight using computational fluid dynamics [PDF]
, 2017 Flow field around rotors in axial flight is known to be complex especially in steep descent where the rotor is operating inside its own wake. It is often reported that, in this flight condition, the rotor is susceptible to severe wake interactions ...
Barakos, George +1 more
core +5 more sources
Structural Color Inkjet Printing With Mie‐Resonant Silicon Nanoparticles
Advanced Materials, EarlyView.Water‐based inks incorporating Mie‐resonant silicon nanoparticles were developed, and their application to structural color inkjet printing was demonstrated. By controlling the nanoparticle size and concentration, coloration covering a wide color gamut was achieved.
Hiroto Yamana +3 more
wiley +1 more source
Научный вестник МГТУ ГА, 2019 The article considers the problem of the flow around the helicopter main rotor taking into account blades flapping in the plane of rotation and in the plane of thrust as well as the elastic blades deformation.
V. A. Vershkov +2 more
doaj +1 more source
The Influence of Air Gap Thickness between the Stator and Rotor on Nuclear Main Pump
, 2017 The canned motor pumps are commonly used as main umps in nuclear primary circuit systems, because the typically outward leakage clearance in general centrifugal pumps does not exist in the canned motor pumps.
Xu Hu, Yong Li, L. Luo
semanticscholar +1 more source
A Comprehensive Review of Waste‐Derived Materials for Solar Still Performance Enhancement
Advanced Materials Interfaces, EarlyView.ABSTRACT Solar desalination reduces energy use and produces freshwater sustainably, but its productivity is limited and cannot meet rising demand. Thus, solar desalination system improvements are sought to boost water productivity. Waste materials are abundantly available and burden the environment, making them low‐cost enhancers for solar desalination
A. S. Abdullah +6 more
wiley +1 more source
Numerical Investigation of the Vortex Ring Phenomena in Rotorcraft
AerospaceDue to their complex aerodynamics, helicopters may enter different dangerous aerodynamic conditions under certain adverse circumstances. In this paper, we examine one such phenomenon—the Vortex Ring State (VRS).
Vytautas Rimša, Mykolas Liugas
doaj +1 more source