Results 1 to 10 of about 46,382 (297)

Low Infrared Emissivity and Strong Stealth of Ti-Based MXenes [PDF]

open access: yesResearch, 2022
Advanced scenario-adaptable infrared (IR) stealth materials are crucial for creating localized closed thermal environments. Low emissivity over the broadest possible band is expected, as is superior mechanical deformability. Herein, we report a series of
Xinliang Li   +4 more
doaj   +4 more sources

Perfect Solar Absorber with Extremely Low Infrared Emissivity

open access: yesPhotonics, 2022
We propose a multi-materials solar absorber consisting of regularly arranged cross resonators made of Ni, and nanocylinders made of Ti on their four corners.
Zhaolong Wang   +5 more
doaj   +2 more sources

An Ultra-Wideband Frequency Selective Rasorber with Low Infrared Emissivity [PDF]

open access: yesMaterials
The paper proposes an ultra-wideband frequency selective rasorber (FSR) with low infrared emissivity for the composite detection threat of both radars and infrared sensors. Firstly, the equivalent circuit (EC) method based on transmission line (TL) theory is utilized to analyze the absorption/transmission conditions.
Hang Song   +6 more
openaire   +3 more sources

Low Infrared Emissivity Coating Based on Graphene Surface-Modified Flaky Aluminum [PDF]

open access: yesMaterials, 2018
A low infrared emissivity coating was prepared using graphene surface-modified flaky aluminum complex powders (rGO-FAl) as fillers. The flaky aluminum powders were coated with graphene through chemical bonding. Compared with pure flaky aluminum, the Vis-NIR diffuse reflectance of rGO-FAl complex powders was significantly decreased, which was beneficial
He, Lihua   +5 more
openaire   +3 more sources

Lithography-free subwavelength metacoatings for high thermal radiation background camouflage empowered by deep neural network [PDF]

open access: yesNanophotonics
The long wavelength infrared (LWIR) range (8–14 µm) is crucial for thermal radiation detection, necessitating effective camouflage against advanced infrared technologies.
Qiu Qianli   +10 more
doaj   +2 more sources

Design of a Low-Infrared-Emission and Wideband-Microwave-Absorption Lightweight Metasurface

open access: yesNanomaterials
The compatibility of low infrared emission and wideband microwave absorption has drawn extensive attention, both theoretically and practically. In this paper, an infrared–radar-compatible stealth metasurface is designed using transparent conductive ...
Liping Liu   +7 more
doaj   +3 more sources

The Infrared Emission and Vigorous Star Formation of Low-redshift Quasars [PDF]

open access: yesThe Astrophysical Journal, 2021
Abstract The star formation activity of the host galaxies of active galactic nuclei provides valuable insights into the complex interconnections between black hole growth and galaxy evolution. A major obstacle arises from the difficulty of estimating accurate star formation rates (SFRs) in the presence of a strong active galactic nucleus.
Yanxia Xie   +3 more
openaire   +3 more sources

DROACOR®-THERMAL: AUTOMATED TEMPERATURE / EMISSIVITY RETRIEVAL FOR DRONE BASED HYPERSPECTRAL IMAGING DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Thermal remote sensing from unmanned aerial vehicles is a slowly but steadily growing field of application. New hyperspectral systems operating in the thermal infrared are deployable on such systems and are also usable for ground based monitoring, such ...
D. Schläpfer   +3 more
doaj   +1 more source

Anomaly Detection in Airborne Fourier Transform Thermal Infrared Spectrometer Images Based on Emissivity and a Segmented Low-Rank Prior

open access: yesRemote Sensing, 2021
Although hyperspectral anomaly detection is commonly conducted in the visible, near-infrared, and shortwave infrared spectral regions, there has been less research on hyperspectral anomaly detection in the longwave infrared (LWIR) hyperspectral region ...
Xuhe Zhu   +4 more
doaj   +1 more source

Improving Cooling Capacity of Condensation-Free Radiant Cooling for Low-Emissivity Chilled Ceiling via Adaptive Double-Skin Infrared Membranes

open access: yesFrontiers in Thermal Engineering, 2022
Radiant cooling has well been acknowledged as energy efficient and thermal comfortable technology compared to conventional convective cooling. However, the radiant cooling exists two serious problems (viz., insufficient cooling capacity and high ...
Ke Du   +9 more
doaj   +1 more source

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