Results 31 to 40 of about 11,457 (241)

Radar Investigation of Mars, Mercury, and Titan [PDF]

open access: yes, 1995
Radar astronomy is the study of the surfaces and near surfaces of Solar System objects using active transmission of modulated radio waves and the detection of the reflected energy.
Butler, Bryan J.   +2 more
core   +1 more source

Hybrid Metasurfaces for Infrared-Multiband Radar Stealth-Compatible Materials Applications

open access: yesIEEE Access, 2019
The compatible stealth functionality in the infrared (IR) and radar wave bands is the most important research topic in the field of stealth material technology.
Cuilian Xu   +8 more
doaj   +1 more source

Hydrogen-bonded multilayer thin films and capsules based on poly(2-n-propyl-2-oxazoline) and tannic acid : investigation on intermolecular forces, stability, and permeability [PDF]

open access: yes, 2019
In recent years, hydrogen-bonded multilayer thin films and capsules based on neutral and nontoxic building blocks have been receiving interest for the design of stimuli-responsive drug delivery systems and for the preparation of thin-film coatings ...
Hoogenboom, Richard   +5 more
core   +1 more source

Nitrogen-Doped Magnetic-Dielectric-Carbon Aerogel for High-Efficiency Electromagnetic Wave Absorption

open access: yesNano-Micro Letters, 2023
Highlights An ingenious design achieved magnetic-dielectric-carbon coupling. Nickel and manganese oxide particles were in situ reduced and grew on the carbon aerogels.
Shijie Wang   +7 more
doaj   +1 more source

Synthesis of tripodal catecholates and their immobilization on zinc oxide nanoparticles [PDF]

open access: yes, 2015
A common approach to generate tailored materials and nanoparticles (NPs) is the formation of molecular monolayers by chemisorption of bifunctional anchor molecules. This approach depends critically on the choice of a suitable anchor group.
Gross, Silvia   +7 more
core   +3 more sources

Influence of exhaust parameters on mid-infrared radiative characteristics of the plume

open access: yesZhongguo Jianchuan Yanjiu, 2023
Objectives Infrared radiative (IR) characteristics of the plume are the main part of ship infrared radiation. The influence analysis of exhaust parameters on radiative characteristics is very important for developing ship stealth and anti-stealth ...
Zhen WANG   +4 more
doaj   +1 more source

Analysis on Stealth Requirement of Next-generation Bomber in the Future

open access: yesHangkong gongcheng jinzhan, 2018
The long-range strategic bomber’s stealth performance and plan track strategic call more and more attention. By comparing the stealth performance of next generation stealth bombers developed by the United States and Russia and their faced threats, higher
Xu Dingguo   +3 more
doaj   +1 more source

Human gesture classification by brute-force machine learning for exergaming in physiotherapy [PDF]

open access: yes, 2017
In this paper, a novel approach for human gesture classification on skeletal data is proposed for the application of exergaming in physiotherapy. Unlike existing methods, we propose to use a general classifier like Random Forests to recognize dynamic ...
Allebosch, Gianni   +4 more
core   +1 more source

Nanostructured Stealth Surfaces for Visible and Near-Infrared Light

open access: yesNano Letters, 2016
So far, all previous attempts to apply nanostructures for perfect transmission have not achieved maximum transmittance beyond 99.5% due to the limited regularity of the nanoscale surface geometry: too low for many high-end applications. Here we demonstrate a nanostructured stealth surface, with minimal reflectance (99.8%) for a wavelength range ...
Diao, Z.   +4 more
openaire   +3 more sources

Robust and Biocompatible Functionalization of ZnS Nanoparticles by Catechol-Bearing Poly(2-Methyl-2-Oxazoline)s. [PDF]

open access: yes, 2018
Zinc sulfide (ZnS) nanoparticles (NPs) are particularly interesting materials for their electronic and luminescent properties. Unfortunately, their robust and stable functionalization and stabilization, especially in aqueous media, has represented a ...
Benetti, Em   +9 more
core   +2 more sources

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