Results 41 to 50 of about 115,708 (333)

Exploring sub-strong scattering source of canopy of fighter with radar stealth technology

open access: yesXibei Gongye Daxue Xuebao, 2022
The canopy of a fighter is the main source of electromagnetic scattering, and the achievement of its radar stealth is one of key technologies for developing a stealth fighter.
ZHOU Tao   +4 more
doaj   +1 more source

Stealth Luminescent Organic Nanoparticles Made from Quadrupolar Dyes for Two-Photon Bioimaging: Effect of End-Groups and Core

open access: yesMolecules, 2022
Molecular-based Fluorescent Organic Nanoparticles (FONs) are versatile light-emitting nano-tools whose properties can be rationally addressed by bottom-up molecular engineering.
Morgane Rosendale   +5 more
doaj   +1 more source

Heterodimensional Structure Switching Multispectral Stealth and Multimedia Interaction Devices

open access: yesAdvancement of science, 2023
Lightweight and flexible electronic materials with high energy attenuation hold an unassailable position in electromagnetic stealth and intelligent devices.
Jincheng Shu   +3 more
semanticscholar   +1 more source

Effect of preparation process of aluminum oxide thin films on high temperature barrier performance

open access: yesJournal of Aeronautical Materials
With the rapid development of detection technology,the demand for infrared stealth performance in weapons and equipment is increasing,especially the urgent need to suppress the infrared radiation signal of high-temperature components. Pt metal films have
LIU Pengrui   +4 more
doaj   +1 more source

Spacetimes dressed with stealth electromagnetic fields

open access: yes, 2018
Stealth field configurations by definition have a vanishing energy-momentum tensor, thus do not contribute to the gravitational field equations. While only trivial fields can be stealth in Maxwell's electrodynamics, nontrivial stealth fields appear in ...
Smolić, Ivica
core   +1 more source

Metal–Semiconductor–Metal Metasurface for Multiband Infrared Stealth Technology Using Camouflage Color Pattern in Visible Range

open access: yesAdvanced Optical Materials, 2022
Optical stealth technology is being developed to cope with high‐sensitivity infrared image detectors and various guided detectors. Infrared stealth technology has remarkable performance; however, future advancements in multi‐band stealth technology ...
Jagyeong Kim, Changhoon Park, J. Hahn
semanticscholar   +1 more source

The Stealth Expatriate [PDF]

open access: yesAAOHN Journal, 2010
Global business practices have created a new category of worker, the stealth expatriate. Tax, immigration, and political risks exist for corporations that do not track this type of worker. Critical implications exist for occupational health nurses in the areas of travel health, fitness for duty, and emergency response.
openaire   +3 more sources

Multi-Objective Bayesian Optimization Design of Elliptical Double Serpentine Nozzle

open access: yesAerospace, 2023
The use of traditional optimization methods in engineering design problems, specifically in aerodynamic and infrared stealth optimization for engine nozzles, requires a large number of objective function evaluations, therefore introducing a considerable ...
Saile Zhang   +3 more
doaj   +1 more source

The minimal stealth boson: models and benchmarks [PDF]

open access: yes, 2019
Stealth bosons are relatively light boosted particles with a cascade decay $S \to A_1 A_2 \to q \bar q q \bar q$, reconstructed as a single fat jet. In this work, we establish minimal extensions of the Standard Model that allow for such processes. Namely,
Aguilar-Saavedra, J. A., Joaquim, F. R.
core   +3 more sources

Preparation of Al2O3-Ti3SiC2 agglomerated powder for plasma spraying

open access: yesJournal of Aeronautical Materials
High-temperature microwave-absorbing materials play a crucial role in enhancing the stealth capabilities of hot-end components in advanced warplanes. Among them,Al2O3 and Ti3SiC2 have a wide range of applications in this field.
YUAN Xujiong   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy