Results 21 to 30 of about 28,026 (100)

Distributing Three-Dimensional Aerodynamic Load to Fem Nodes [PDF]

MATEC Web of Conferences, 2019
Aiming at the requirement of the load conversion in aeronautics and astronautics static strength analysis, a three-dimensional aerodynamic load equivalent distribution method based on least squares is proposed.
Weimin Sun
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Research on the safe separation corridor of the combined aircraft and its generation method

Xibei Gongye Daxue Xuebao, 2023
Aerial safety separation is an important indicator to evaluate the flight performance of medium and low speed combination aircraft. In this paper, the concept of impact box and safe separation corridor will be introduced for the air separation problem of
PAN Yihua, ZHANG Qingsong, ZHANG Jincheng, CAI Chengzhi, JIA Shan   +4 more
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Experimental and Numerical Investigations on the Ignition of RBCC Gas-Oxygen/Kerosene Rocket Ejector

International Journal of Aerospace Engineering, 2021
The rocket ejector refers to a core component of a rocket-based combined cycle (RBCC) engine. The ignition is of critical significance for rocket ejection. Reliable and stable ignition crucially determines the normal operation of the engine.
Bingyang Liu, Ping Jin, Yixin Ma, Yaqun Qi, Guobiao Cai, Yuanjun Zhang   +5 more
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Multiscale Fusion Network Based on Global Weighting for Hyperspectral Feature Selection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Feature selection (FS) is an important way to achieve high-precision and efficient classification of hyperspectral remote sensing images. However, most existing FS methods use a fixed scale to extract features and the relationship between spatial and ...
Jinjin Wang, Jiahang Liu, Jian Cui, Ji Luan, Yangyu Fu   +4 more
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A Feature-Map-Based Method for Explaining the Performance Degradation of Ship Detection Networks

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The unknowability of the inner workings limits the magnitude of performance improvement of ship target detection networks in synthetic aperture radar (SAR) images under Gaussian noise.
Peng Jia, Xiaowei He, Bo Wang, Jun Li, Qinghong Sheng, Guo Zhang   +5 more
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Ieee Access Special Section Editorial:Complex System Health Management Based On Condition Monitoring And Test Data

IEEE Access, 2018
The global manufacturing industry is facing a crucial transformation with the rapid developments of German Industries 4.0, Industrial Internet of the U.S., and China Manufacturing 2025.
Datong Liu, Haitao Liao, Enrico Zio, Qiang Miao, Bin Zhang, Chao Hu, Michael H. Azarian   +6 more
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Research on a New Process of Agile Turn with Engine Reignition Based on Optimal Control

Complexity, 2021
A new process of agile turn with engine reignition is proposed in this paper. Compared with the traditional process, this process includes deceleration phase, larger angle manoeuvre phase, and engine reignition phase. Firstly, the paper describes the new
Kang Niu, Jianqiao Yu, Xi Chen, Di Yang, Ziyuan Li   +4 more
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Muscle atrophy phenotype gene expression during spaceflight is linked to a metabolic crosstalk in both the liver and the muscle in mice

iScience, 2022
Summary: Human expansion in space is hampered by the physiological risks of spaceflight. The muscle and the liver are among the most affected tissues during spaceflight and their relationships in response to space exposure have never been studied.
Geraldine Vitry, Rebecca Finch, Gavin Mcstay, Afshin Behesti, Sébastien Déjean, Tricia Larose, Virginia Wotring, Willian Abraham da Silveira   +7 more
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Optimizing the Location of the Piezoelectric Actuator and Analyzing Its Effect on the Dynamics of Asymmetric Flexible Spacecraft

Aerospace, 2023
To address the challenge of optimizing the placement of actuators on an asymmetric spacecraft continuum system, this paper develops a rigid–flexible electromechanical coupling dynamic model that integrates the interactions among rigidity, flexibility ...
Kai Cao, Renyuan Xie, Jianmin Zhou, Xiaowei Zhang, Jingji Wang, Shuang Li   +5 more
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Fault Detection and Isolation for Redundant Inertial Measurement Unit under Quantization

Applied Sciences, 2018
Fault detection and isolation with redundant strapdown inertial measurement unit is critical for ensuring the reliability of the guidance or navigation system in the fields of both aeronautics and astronautics.
Tong Zhang, Fenfen Wang, Wenxing Fu
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