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Academic Articles & Research Papers
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Yevhenii Kovryzhenko, Ehsan Taheri • Drones
(2025)
Motion planning is critical for ensuring precise and efficient operations of unmanned aerial vehicles (UAVs). While polynomial parameterization has been the prevailing approach, its limitations in handling complex trajectory requirements ha...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/drones9010077
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
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
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
Meiling Zhou, Linlin Lu, Huadong Guo, Qihao Weng et al. • Remote Sensing
(2021)
Sustainable development in urban areas is at the core of the implementation of the UN 2030 Agenda and the Sustainable Development Goals (SDG). Analysis of SDG indicator 11.3.1—Land-use efficiency based on functional urban boundaries—provide...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/rs13152850
Thenmozhi D, M. Eswara Rao, Ch. Nagalakshmi, RLV.Renuka Devi et al. • International Journal of Thermofluids
(2024)
The current study presents a novel examination of heat transfer properties in a magnetohydrodynamic (MHD) flow of Casson fluid across a porous stretching sheet, uniquely incorporating the effects of heat source and variable viscosity. Unlik...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.ijft.2024.100804
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
Mohammad M. Maneshi, Mohammad M. Maneshi, Frederick Sachs, Susan Z. Hua et al. • Frontiers in Cellular Neuroscience
(2018)
Mechanical perturbations increase intracellular Ca2+ in cells, but the coupling of mechanical forces to the Ca2+ influx is not well understood. We used a microfluidic chamber driven with a high-speed pressure servo to generate defined fluid...
DOAJ
Open Access (DOAJ)
DOI: 10.3389/fncel.2018.00069
Yaqiong Zhang, Fubin Wang, Jinchao Liu, Heng Zhao et al. • Aerospace
(2024)
The rotating blade is a key component of an aero-engine, and its vibration characteristics have an important impact on the performance of the engine and are vital for condition monitoring. This paper reviews the research progress of blade d...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/aerospace11080638
Chung-woo Lee, Joo Kyung Lee, Yeon Joo Choi, Hyunjin Kim et al. • Scientific Reports
(2022)
Abstract Revascularization procedures, including percutaneous coronary intervention (PCI), for coronary artery disease (CAD) are increasingly performed in Korea. However, studies on blood pressure control targets in these patients remain in...
DOAJ
Open Access (DOAJ)
DOI: 10.1038/s41598-022-06627-4
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
Asfand Fahad, Zammad Ali, Shigeru Furuichi, Yuanheng Wang • Alexandria Engineering Journal
(2025)
Due to applicability of mathematical inequalities in control systems, actuarial science, information theory and its utilization in other sciences, several researchers are inclined to prove their refinements and generalizations. In the study...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.aej.2024.11.034
Pekka Korhonen, Francis K.C. Hui, Jenni Niku, Sara Taskinen et al. • PeerJ
(2025)
Background Over the past decade, joint species distribution models (JSDMs) and model-based ordination have emerged as powerful tools for the analysis of community ecology data. Generalized linear latent variable models (GLLVMs) offer a flex...
DOAJ
Open Access (DOAJ)
DOI: 10.7717/peerj.20338
Xian-hua ZHOU, Yun-bo WANG, Hua-dong ZHANG, Ke WANG • Journal of Integrative Agriculture
(2015)
This study investigates the optimal reinsurance for crop insurance in China in an insurer's perspective using the data from Inner Mongolia, Jilin, and Liaoning, China. On the basis of the loss ratio distributions modeled by AnHua Crop Risk ...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/S2095-3119(14)60998-9
Samuel Asante Gyamerah, Victor Owusu, Stephen Oppong Kwakye • Scientific African
(2024)
The impacts of climate variability indicators on crop yields have attracted global attention over the years. This is particularly so because of the growing concern about the effect of climate change on sustainable food production, especiall...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.sciaf.2024.e02314
Worlanyo Kwadjo Siabi, Emmanuel Degraft-Johnson Owusu-Ansah, Helen Michelle Korkor Essandoh, Nana Yaw Asiedu • Water-Energy Nexus
(2021)
Nearly 6494 boreholes with iron (Fe) and manganese (Mn) concentrations above permissible limits of 0.3 mg/L and 0.4 mg/L respectively in Ghana have been abandoned because of ineffective water treatment solutions. Activated carbon prepared f...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.wen.2021.02.001
Jennifer Belt Antwi, Nana Kena Frempong • Mathematics in Medical and Life Sciences
(2026)
Background: The classic Wells–Riley model (CWRM) is a well-established framework for estimating airborne infection risk in shared indoor environments. This study extends the framework to simultaneously incorporate fecal–oral transmission, a...
DOAJ
Open Access (DOAJ)
DOI: 10.1080/29937574.2026.2714847
Šoltés Erik, Vojtková Mária, Šoltésová Tatiana • Moravian Geographical Reports
(2020)
With respect to the fulfillment of the objectives of the Europe 2020 strategy, the threat of poverty and social exclusion has not been sufficiently reduced in the European Union (EU) over the past decade, and large regional disparities pers...
DOAJ
Open Access (DOAJ)
DOI: 10.2478/mgr-2020-0001
Sangmo Hong, Kyungdo Han, Cheol-Young Park • Endocrinology and Metabolism
(2025)
Acromegaly is a rare endocrine disorder caused by excessive growth hormone secretion. Its low prevalence poses challenges in studying its long-term prognosis and systemic effects. To address this research gap, we conducted five studies usin...
DOAJ
Open Access (DOAJ)
DOI: 10.3803/EnM.2024.2285