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Academic Articles & Research Papers
Showing 20 of 2,610 academic articles
Shuanfeng Zhao, Jiaojiao Zhao, Jiaojiao Zhao, Zhengxiong Lu et al. • Frontiers in Energy Research
(2022)
The cooperative control of shearer and scraper conveyors is the prerequisite for the realization of intelligent comprehensive mining equipment and unmanned comprehensive mining workings. However, because of the harsh working face environmen...
DOAJ
Open Access (DOAJ)
DOI: 10.3389/fenrg.2022.811648
Wonseok Yang • Applied Sciences
(2021)
This study presents a method to predict the flow velocity in a fluid-conveying pipe using vibration signals from the pipe surface. The flexural vibration of a fluid pipe is investigated through wave propagation. The wavenumbers and mode sha...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/app11135779
Xiao-Xiao Han, Jia Qiao, Zhan-Ao Meng, Dong-Mei Pan et al. • Brain Sciences
(2023)
Objectives: Investigate the biomechanical characteristics in tracheostomized patients with aspiration following acquired brain injury (ABI) and further explore the relationship between the biomechanical characteristics and aspiration. Metho...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/brainsci13010091
Chaoqun Zeng, Jing-Pu Tang, Liangliang Wei, Miaochang Zhu et al. • Buildings
(2026)
Reinforced concrete (RC) beams strengthened with carbon-fabric-reinforced cementitious matrix (CFRCM) systems have shown potential for restoring flexural performance, yet their effectiveness under different corrosion levels remains insuffic...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/buildings16020377
Guojing Hu, Kun Li, Weike Lu, Ouchan Chen et al. • World Electric Vehicle Journal
(2025)
Collision avoidance between vehicles is a great challenge, especially in the context of mixed driving of connected and autonomous vehicles (CAVs) and human-driven vehicles (HVs). Advances in automation and connectivity technologies provide ...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/wevj16070394
M. G. El-Sherbiny, Farouk Hammad, M. M. Youssef, M. K. Mohamed et al. • Journal of the Egyptian Society of Tribology
(2026)
The present study examines the temper colors of the wear particles retained by the oil filter by optical microscope. The temperature of the sliding surfaces inside engines can be determined by the temper colors of the wear particles. Becaus...
DOAJ
Open Access (DOAJ)
DOI: 10.21608/jest.2026.481011.1158
Hao Wang, Junfei Wu, Ping Fu, Xinle Song et al. • BioResources
(2026)
This study adopted a semi‑analytical CFD‑DEM coupling method to simulate the movement and deposition of lignin particles in ceramic membrane pores, with the aim of elucidating the microscopic mechanisms of membrane fouling. The movement of ...
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Open Access (DOAJ)
Jiu Yu, Yubo Hu, Yaoxing Peng • Case Studies in Thermal Engineering
(2026)
The wick structure functions as a core component for heat pipe (HP) and stands as one of the critical factors that dictate the performance of HP. Consequently, this paper puts forward an three-segmented composite wick structure, which is ma...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.csite.2026.107724
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
Simone Dilaria, Caterina Previato, Jacopo Bonetto, Michele Secco et al. • Heritage
(2023)
In this paper, we discuss the presence of volcanic pozzolans in the structural mortars of the Roman Temple of Nora in Sardinia (3rd c. AD), represented by pyroclastic rocks (pumices and tuffs) employed as coarse and fine aggregates. The pro...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/heritage6010030
Zarubina K.A. • Вестник Брянского государственного университета
(2022)
Using the example of the Kursk province, the article examines the main methods of government work with persons with dubious «political reliability», «potential» and «real» political criminals in the second half of the XIX - early XX centuri...
DOAJ
Open Access (DOAJ)
DOI: 10.22281/2413-9912-2022-06-02-57-62
Nanette Paz Liberona Concha, Evelyn López San francisco • Estudios Atacameños
(2019)
El año 2007 se instala el programa de Refugio en Iquique, debido al aumento de solicitudes en la región de Tarapacá. En 2010 se dicta la Ley de Refugio en Chile, no obstante, a partir de entonces, tanto las solicitudes de asilo como las con...
DOAJ
Open Access (DOAJ)
Tiancheng Yang, Xiuhua Si, Jinxiang Xi • Life
(2024)
The human tongue has highly variable morphology. Its role in regulating respiratory flows and deposition of inhaled aerosols remains unclear. The objective of this study was to quantify the uncertainty of nanoparticle deposition from the va...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/life14030406
Majid Jamal-Omidi, Mohammad Reza Mohammadi Suki • Journal of Mechanical Engineering
(2018)
In this paper, effects of the defect in an adhesively bonded joint have been investigated using cohesive zone modeling. Consequently, a 3D finite element model of a single lap-joint is constructed and validated with experiments. Strength pr...
DOAJ
Open Access (DOAJ)
DOI: 10.2478/scjme-2018-0023
Yu Wang, Kun Zhou • Green Energy & Environment
(2022)
Two-dimensional (2D) materials have exhibited great potential for replacing costly Pt for oxygen reduction reaction (ORR) because of their distinctive structural features and high pre-site activity. However, their performance is generally h...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.gee.2020.11.003
Mohamed Afifi, Mohamed Afifi, Muhammad Uba Abdulazeez, Muhammad Uba Abdulazeez et al. • Frontiers in Bioengineering and Biotechnology
(2025)
Road traffic crashes are the leading cause of injuries, disabilities, and fatalities for children and young adults. Extremity joint injuries have been identified as one of the contributing factors to chronic disabilities among children in r...
DOAJ
Open Access (DOAJ)
DOI: 10.3389/fbioe.2025.1667865
Yongbai Sha, Donghe Han, Donghu Chen, Congzhi Liu • Machines
(2024)
The iron roughneck is an automated piece of equipment utilized for the connection and removal of drilling tools. This paper presents the design of an integrated iron roughneck, providing a detailed introduction to its clamp body structure, ...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/machines12080575
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
Senyefia Bosson-Amedenu, Emmanuel Ayitey, Francis Ayiah-Mensah, Luyton Asare • BMC Cancer
(2025)
Abstract Background Frailty models are extensively utilized in survival analysis to address unobserved heterogeneity among individuals. However, selecting the most robust model for survival prediction, especially in the context of high-dime...
DOAJ
Open Access (DOAJ)
DOI: 10.1186/s12885-025-14040-z
Marie Gaille, Marco Araneda, Clément Dubost, Clémence Guillermain et al. • BMC Medical Ethics
(2020)
Abstract Background The discovery of biomarkers of ageing has led to the development of predictors of impending natural death and has paved the way for personalised estimation of the risk of death in the general population. This study inten...
DOAJ
Open Access (DOAJ)
DOI: 10.1186/s12910-020-00502-5