Results 11 to 20 of about 428,569 (278)

Deep Learning Assisted Optimization of Metasurface for Multi-Band Compatible Infrared Stealth and Radiative Thermal Management

Nanomaterials, 2023
Infrared (IR) stealth plays a vital role in the modern military field. With the continuous development of detection technology, multi-band (such as near-IR laser and middle-IR) compatible IR stealth is required.
Lei Wang, Jian Dong, Wenjie Zhang, Chong Zheng, Linhua Liu   +4 more
doaj   +2 more sources

Magneto-Dielectric Synergy and Multiscale Hierarchical Structure Design Enable Flexible Multipurpose Microwave Absorption and Infrared Stealth Compatibility [PDF]

Nano-Micro Letters
Highlights A multiscale hierarchical structure design, integrating wrinkled MXene radar-infrared shielding layer and flexible Fe3O4@C/PDMS microwave absorption layer The assembled stealth devices realize a near-perfect stealth capability in both X-band ...
Chen Li, Leilei Liang, Baoshan Zhang, Yi Yang, Guangbin Ji   +4 more
doaj   +2 more sources

Fabrication of Al/Ni core–shell pigments via galvanic displacement and their application in radar-infrared compatible stealth coatings

Journal of Materials Research and Technology
The Al/Ni magnetic core–shell pigments were successfully synthesized in this study using the galvanic displacement method. A dense nickel shell was formed on the surface of a flake Al pigment (Al:Ni2+ = 1:0.5), resulting in a decrease in its lightness by
Biao Wei, Xiaolong Weng, Le Yuan, Jingwei Hu, Yaqin Wang, Lun Qi, Mei Bi   +6 more
doaj   +2 more sources

Authentication in stealth distributed hash tables [PDF]

, 2008
Most existing DHT algorithms assume that all nodes have equal capabilities. This assumption has previously been shown to be untrue in real deployments, where the heterogeneity of nodes can actually have a detrimental effect upon performance.
Brampton, Andrew, MacQuire, A., Mathy, Laurent, Rai, Idris A., Race, N. J. P., MacQuire, Andrew, Rai, I. A., Race, Nicholas J.P., Brampton, A.   +8 more
core   +5 more sources

The development of infrared stealth technology based on photonic crystals [PDF]

Zhihui kongzhi yu fangzhen, 2023
The dielectric materials with different refractive index are periodically arranged according to a certain structure to form photonic crystals, which can control the photon transmission regularly.
JIN Bin, SUN Haiwen
doaj   +1 more source

Compatible stealth design of infrared and radar based on plasmonic absorption structure

Optics Express, 2021
In this paper, a metamaterial structure with radar and infrared (IR) compatible stealth characteristics is designed based on the principle of plasmonic absorbing structure (PAS). Due to the lack of reports on PAS-based IR radar compatible stealth, this article combines PAS and IR frequency selective surfaces to achieve the desired purpose.
Zhiqiang, Gao, Qi, Fan, Cuilian, Xu, Xiaoxia, Tian, Changhui, Tian, Jiafu, Wang, Shaobo, Qu   +6 more
openaire   +2 more sources

Infrared stealth metamaterials

Cailiao gongcheng, 2020
The basic principles and methods of infrared radiation and infrared stealth technology were discussed in this paper. It was found that flexible regulation of multi-band spectrum was the key to realize infrared stealth compatible with radar stealth, laser
LIU Xiao-ming, REN Zhi-yu, CHEN Lu-ping, LI Guo-jian, WANG Qiang, ZHOU Ji   +5 more
doaj   +1 more source

Optimal Design of Infrared Wavelength‐Selective and Microwave Transmitting Bionic Metasurface

Advanced Materials Interfaces, 2023
The radar and infrared (IR) compatible stealth technology is an important technology in the military field. Inspired by the special triangular‐shaped hairs from the Saharan silver ants, a bionic structure with IR wavelength‐selective emission and large ...
Kuilong Song, Qing Ai, Yanming Guo, Ming Xie, Yong Shuai   +4 more
doaj   +1 more source

Balancing Granularity and Context in Designing Evidence Models for Stealth Assessment: A Case of Pause Distribution in a Digital Game-Based Learning Environment

, 2023
In the context of game-based learning environments, stealth assessment unobtrusively measures learning outcomes. However, designing a robust evidence model requires careful consideration of learning behaviors in context.
Fulwider, G. Curt, Liu, Zhichun
core   +1 more source

Infrared and Terahertz Compatible Absorber Based on Multilayer Film

Frontiers in Physics, 2021
In this paper, a similar Fabry-Perot cavity structure utilizing a multilayer film structure consisting of an ultrathin metal film is demonstrated for absorbing the infrared ray. This structure has low emissivity in the atmospheric window (3–5 and 8–14 μm)
Mingyang Yang, Ming Zhou, Jianwen Yu, Yibo Zhang, Benyan Xu, Wenjun Cheng, Xuyin Li   +6 more
doaj   +1 more source