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Research progress of automated ultrasonic imaging detection technology for complex aircraft components

CHEN Yao, XIONG Zhenghui, LUO Junwei, WANG Hanyang et al. • Journal of Aeronautical Materials (2025)

Traditional ultrasonic automated non-destructive testing is a great challenge in the inspection of aviation components with complex surfaces. Complex surfaces can interfere with the formation of the focus in the sound beam,and the waveform ...

DOAJ Open Access (DOAJ) DOI: 10.11868/j.issn.1005-5053.2024.000173

Influence of Non - Condensable Gases on the Processes of Heat and Mass Transfer during Film Condensation of Steam in Heat Exchangers

Reshetnikov I.F., Shikhalev S.V., Tikhonov S.L. • Problems of the Regional Energetics (2018)

The aim of the article is a quantitative assessment of the influence of non-condensable gases on the intensity of heat and mass transfer processes during film condensation of steam in the specific conditions for heat exchanger. The task is ...

DOAJ Open Access (DOAJ) DOI: 10.5281/zenodo.2222362

Development of Representative Urban Driving Cycles for Congested Traffic Conditions in Guayaquil Using Real-Time OBD-II Data and Weighted Statistical Methods

Roberto López-Chila, Henry Abad-Reyna, Joao Morocho-Cajas, Pablo Fierro-Jimenez • Vehicles (2025)

Standardized driving cycles such as the FTP-75 fail to represent traffic conditions in cities like Guayaquil, where high congestion and varied driving behaviors are not captured by external models. This study aimed to develop representative...

DOAJ Open Access (DOAJ) DOI: 10.3390/vehicles7030095

Investigation of the Friction Performance of G3000 (Variant), GG20, and GG15 (High Carbon) Cast Brake Discs Using the SAE J2522 Procedure

Talha İkbal Çığır, Melih Hakan Samur, Mevlüt Yasin Igdeli • International Journal of Automotive Science and Technology (2025)

This study compares the friction performance of three commonly used cast brake disc materials in the automotive industry: the G3000 variant, GG20, and GG15 (high carbon content). Samples were tested on an inertia dynamometer following the S...

DOAJ Open Access (DOAJ) DOI: 10.30939/ijastech..1811564

Research Progresses of Flash Evaporation in Aerospace Applications

Wei Ma, Siping Zhai, Ping Zhang, Yaoqi Xian et al. • International Journal of Aerospace Engineering (2018)

Liquid is overheated and evaporated quickly when it enters into the environment with lower saturation pressure than that corresponding to its initial temperature. This phenomenon is known as the flash evaporation. A natural low-pressure env...

DOAJ Open Access (DOAJ) DOI: 10.1155/2018/3686802

Study on Flight Performance of Propeller-Driven UAV

Rui-lin Liu, Zhong-jie Zhang, Yu-fei Jiao, Chun-hao Yang et al. • International Journal of Aerospace Engineering (2019)

The engine performance test at altitudes of 0-7000 m was carried out on the high-performance test bench of the Unmanned Aerial Vehicle (UAV) piston engine. The flight performance of UAV was studied, including propeller thrust characteristic...

DOAJ Open Access (DOAJ) DOI: 10.1155/2019/6282451

A Novel Inertial-Aided Star Pattern Matching Method for Distributed Multiple FoVs

Rong Wang, Yuxuan Cao, Jianye Liu, Zhi Xiong • International Journal of Aerospace Engineering (2020)

An aerospace vehicle in high-speed flight involves distributed multiple fields of view (FoVs) of a star sensor, and the maneuvering of the vehicle requires inertial-aided star pattern matching. Accordingly, an inertial-aided star pattern ma...

DOAJ Open Access (DOAJ) DOI: 10.1155/2020/2676210

Disturbance Compensation Model Predictive Control for Free‑Floating Space Robots

LIU Jianxing, ZHANG Ouyang, MA Xiaolong, CHEN Meng et al. • Nanjing Hangkong Hangtian Daxue Xuebao (2026)

Free-floating space robots (FFSRs) have emerged as critical unmanned platforms for long-term in-orbit services thanks to their high mobility and extended operational lifespan. However, external disturbances caused by dynamic space environme...

DOAJ Open Access (DOAJ) DOI: 10.16356/j.2097-6771.2026.01.015

Observer-Based Robust Finite-Time Trajectory Tracking Control for a Stratospheric Satellite Subject to External Disturbance and Actuator Saturation

Shurui Huang, Yueneng Yang, Ye Yan, Shifeng Zhang et al. • International Journal of Aerospace Engineering (2022)

The stratospheric satellite is regarded as an ideal stratosphere flight platform and is able to accomplish various missions such as surveillance, earth observation, and remote sensing, which requires a robust and effective trajectory tracki...

DOAJ Open Access (DOAJ) DOI: 10.1155/2022/1601771

Optimization of cationic nanoparticles stabilized by poloxamer 188: A potential approach for improving the biological activity of Aloe perryi

Tahany Saleh Aldayel, Mohamed M. Badran, Abdullah H. Alomrani, Nora A. AlFaris et al. • Heliyon (2023)

Aloe perryi (AP) has gained considerable interest as a medicinal herb in various biological applications due to its rich phytochemical composition. However, the therapeutic benefits of AP could be potentiated by utilizing nanotechnology. Mo...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2023.e22691

Configuration Design and Dynamic Characteristics Analysis for Space Membrane Mechanism Based on Deployable Booms

Yuzhen Tang, Hongwei Guo, Wenyao Zhang, Zhiyi Wang et al. • Aerospace (2023)

To meet the requirements of deployable structures in aerospace engineering with light weight and high stiffness, this paper proposes the triangular space membrane deployable mechanism based on deployable booms, then conducts dynamic analysi...

DOAJ Open Access (DOAJ) DOI: 10.3390/aerospace10030239

A Two-Dimensional Sequential Packing Method for Lunar Regolith Particles Based on Random Polygons

Chunguang Zhang, Feng Sun, Ye Li, Haining Zhao et al. • Aerospace (2026)

To accurately characterize the effects of polydisperse particle sizes, multimineral composition, and angular morphology on the packing structure of lunar regolith, a two-dimensional sequential packing method based on random convex octagons ...

DOAJ Open Access (DOAJ) DOI: 10.3390/aerospace13070612

Numerical computation of Brownian motion and thermophoresis effects on rotational micropolar nanomaterials with activation energy

Hassan Waqas, Shan Ali Khan, Bagh Ali, Dong Liu et al. • Propulsion and Power Research (2023)

The current article investigates the numerical study of the micropolar nanofluid flow through a 3D rotating surface. This communication may manipulate for the aim such as the delivery of the drug, cooling of electronic chips, nanoscience an...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jppr.2023.05.005

The Mode of Constructing Safe Trajectories of Motion of the Unmanned Aerial Vehicle while Monitoring Power Lines Considering the Influence of their Electromagnetic Fields

Shabanova A.R., Tolstoy I.M., Lebedev I.V. • Problems of the Regional Energetics (2019)

The aim of this paper is to increase the flight safety of an unmanned aerial vehicle that monitors power lines under the negative influence of electromagnetic fields on the on-board equipment. This problem was solved with algorithms for pho...

DOAJ Open Access (DOAJ) DOI: 10.5281/zenodo.3562201

Rarefied Reactive Gas Flows over Simple and Complex Geometries Using an Open-Source DSMC Solver

Rodrigo Cassineli Palharini, João Luiz F. Azevedo, Diego Vera Sepúlveda • Aerospace (2025)

During atmospheric reentry, a significant number of chemical reactions are produced inside the high-temperature shock wave formed upstream of the spacecraft. Chemical reactions can significantly alter the flowfield structure surrounding the...

DOAJ Open Access (DOAJ) DOI: 10.3390/aerospace12080651

Enhanced Intrusion Detection in Drone Networks: A Cross-Layer Convolutional Attention Approach for Drone-to-Drone and Drone-to-Base Station Communications

Mohammad Aldossary, Ibrahim Alzamil, Jaber Almutairi • Drones (2025)

Due to Internet of Drones (IoD) technology, drone networks have proliferated, transforming surveillance, logistics, and disaster management. Distributed Denial of Service (DDoS) attacks, malware infections, and communication abnormalities i...

DOAJ Open Access (DOAJ) DOI: 10.3390/drones9010046