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Configuration Investigation, Structure Design and Deployment Dynamics of Rigid-Reflector Spaceborne Antenna with Deviation-Angle Panel [PDF]

open access: yesSensors
Rigid-reflector spaceborne antennas (RRSAs) are well-suited for high-frequency application scenarios due to their high surface accuracy. However, the low stowing efficiency of RRSAs limits the aperture diameters and further deteriorates the ...
Guodong Tan   +6 more
doaj   +2 more sources

Design of Wideband High-Gain Patch Antenna Array for High-Temperature Applications

open access: yesSensors, 2023
A low-profile, wideband, and high-gain antenna array, based on a novel double-H-shaped slot microstrip patch radiating element and robust against high temperature variations, is proposed in this work.
Ruibo Li   +7 more
doaj   +1 more source

Progress and Challenges in Electromechanical Coupling of Radio Telescopes

open access: yesInternational Journal of Antennas and Propagation, 2022
Radio astronomy is a discipline of dynamics and wonders. The vast universe has many secrets to unravel. As one of the important facilities in this discipline, radio telescopes play a key role in collecting astronomical data and unraveling mysteries. With
Yuefei Yan   +9 more
doaj   +1 more source

Chemical named entity recognition in the texts of scientific publications using the naïve Bayes classifier approach

open access: yesJournal of Cheminformatics, 2022
Motivation Application of chemical named entity recognition (CNER) algorithms allows retrieval of information from texts about chemical compound identifiers and creates associations with physical–chemical properties and biological activities.
O. A. Tarasova   +4 more
doaj   +1 more source

Miniaturised element frequency selective surface design for high power microwave applications

open access: yesIET Microwaves, Antennas & Propagation, 2023
A third‐order miniaturised element frequency selective surface (MEFSS) for high‐power microwave (HPM) systems is proposed. The MEFSS design is characterised by the excellent capability to handle high‐power waves and the stable frequency response at large
Kai Wu   +4 more
doaj   +1 more source

Research Overview for Door Tests of Civil Airplane

open access: yesHangkong gongcheng jinzhan, 2022
The door is an important part of the aircraft structure.The door test is an important means to verify that the door design meets the requirements of reliability,safety and airworthiness.There are design verification tests and certification tests for ...
GAN Yadong, YAO Xionghua, LIU Wanchun
doaj   +1 more source

Current-injected photovoltaic array for concentrated space solar power station

open access: yesFrontiers in Energy Research, 2023
In this article, the power generation of a concentrated space solar power station (SSPS) is enhanced by current-injected total-cross-tied (TCT-CI) photovoltaic (PV) array.
Xintong Li   +6 more
doaj   +1 more source

Design and Optimization of a Micron-Scale Magnetoelectric Antenna Based on Acoustic Excitation

open access: yesMicromachines, 2022
The development of antenna miniaturization technology is limited by the principle of electromagnetic radiation. In this paper, the structure size of the antenna is reduced by nearly two orders of magnitude by using Acoustic excitation instead of ...
Na Li   +4 more
doaj   +1 more source

Reduction-sensitive N, N’-Bis(acryloyl) cystinamide-polymerized Nanohydrogel as a Potential Nanocarrier for Paclitaxel Delivery

open access: yesDesigned Monomers and Polymers, 2021
Novel monomer, N, N’-bis(acryloyl) cystinamide (NBACA), was designed and synthesized with L-cystine as row material. By using this NBACA both as the monomer and crosslinker, reduction-sensitive nanohydrogel was prepared in ethanol via distillation ...
Linna Yu   +6 more
doaj   +1 more source

Review on building life cycle assessment from the perspective of structural design

open access: yesJournal of Asian Architecture and Building Engineering, 2021
The resource-related, environmental and ecological problems raised by building construction activities have drawn a wide range of concerns among researches, especially in China. Those problems have become prominent.
Zai Wang, Ying Liu, Shizhao Shen
doaj   +1 more source

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