Results 41 to 50 of about 8,209,485 (298)

Application Potential of 4D Printing Technology in Development of Aircraft

Journal of Aeronautical Materials, 2018
4D printing is a new developing technology that has been developed rapidly in recent years. It is of great significance for the development of intelligent structure of aeronautical and aerospace equipments.
SU Yadong, WANG Xiangming, WU Bin, WANG Fuyu, WANG Jiaxing, XING Bendong   +5 more
doaj   +1 more source

Wideband RCS Reduction of a Linear Patch Antenna Array Using AMC Metasurface for Stealth Applications

IEEE Access, 2023
This article presents a linear microstrip patch antenna array at the X-band that incorporates an aperiodic artificial magnetic conductor (AMC) metasurface which utilizes phase cancellation techniques for reducing both the in-band and out-of-band Radar ...
Baisakhi Bandyopadhyay, Sudeb Bhattacharya, Rahul Kumar Jaiswal, Mondeep Saikia, Kumar Vaibhav Srivastava   +4 more
doaj   +1 more source

Lessons from Stealth for Emerging Technologies [PDF]

, 2021
Stealth technology was one of the most decisive developments in military aviation in the last 50 years. With U.S. technological leadership now under challenge, especially from China, this issue brief derives several lessons from the history of Stealth to guide current policymakers.
openaire   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source

Structural design and electrical performance simulation calculation of microwave absorption coatings

Journal of Aeronautical Materials
Since the application of electromagnetic technology，the investigation of microwave absorbing materials has been widespread concerned in the world. With the development of technology，the effect of microwave absorption technology is constantly increasing ...
LIU Zheng, LI Yehua, KUANG Jianlei, HE Shan, HE Lihua   +4 more
doaj   +1 more source

Performance analysis of a tunable absorber based on active frequency selective surface

Zhongguo Jianchuan Yanjiu, 2020
Objectives A periodic absorber can absorb incident electromagnetic waves and effectively reduce the reflectivity of a target. To this end, a novel microwave absorber based on an active frequency selective surface (AFSS) is proposed in this paper.
ZENG Xianliang, ZHANG Linxi, WAN Guobin
doaj   +1 more source

Cross-Scale Light Absorption Properties of Surface Bionic Microstructures for Spacecraft Stealth

Aerospace, 2023
To address the problem that the black coating for spacecraft optical stealth easily falls off, this study constructs a light-absorbing spacecraft surface based on a micro/nanostructure through imitating a natural light-trapping structure.
Yuhuan Qiu, Guohua Kang, Xunlong Cheng, Jiaqi Wu   +3 more
doaj   +1 more source

Keratin–Melanin Complexation Enables Robust, Delamination‐Resistant Feather‐Inspired Structural Color Coatings for Flexible and Curved Substrates

Advanced Materials Interfaces, EarlyView.
Providing mechanically robust structural color coating technology inspired by cooperative interactions in nature. The spatial arrangement of melanin particles within the keratin matrix generates angle‐independent structural colors. Diverse functional groups in keratin and melanin contribute to interparticle and substrate adhesion, resulting in the ...
Taisei Harada, Yui Maejima, Ryota Iwamori, Hideyuki Mitomo, Hirotoshi Tamayama, Shin‐ichi Takeda, Daisuke Unabara, Tasuku Hamaguchi, Koji Yonekura, Gen Morimoto, Hiroshi Fudouzi, Keiki Kishikawa, Michinari Kohri   +12 more
wiley   +1 more source

The Transformative Impact of Stealth Assessment on Medical Education [PDF]

Journal of Advances in Medical Education and Professionalism
This Letter explores the transformative impact of stealth assessment on medical education and its potential to enhance learning outcomes. Stealth assessment, an innovative approach, subtly measures students’ learning progress while the students interact ...
AMIN HABIBI, EHSAN TOOFANINEJAD, SEYED AHMAD RAHIMI, MASOMEH KALANTARION   +3 more
doaj   +1 more source

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

Advanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang, Yu Dong, Yongsheng Du, Rui Gao, Lin Zhang, Fei Tong   +5 more
wiley   +1 more source