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Academic Articles & Research Papers
Showing 20 of 6,973 academic articles
Han Xiao, Han Xiao, Xiaoqian Zhang, Xiaoqian Zhang et al. • Frontiers in Environmental Science
(2022)
Forest disturbance monitoring can provide scientific data for the decision making and management of nature reserves. LandTrendr algorithm has been applied to identify forest disturbances on a long-time scale through appropriate segmentation...
DOAJ
Open Access (DOAJ)
DOI: 10.3389/fenvs.2022.891752
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
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...
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Open Access (DOAJ)
DOI: 10.3389/fncel.2018.00069
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
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
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
Sipeng Shen, Ruyang Zhang, Yue Jiang, Yi Li et al. • Molecular Cancer
(2021)
Abstract N6-Methyladenosine (m6A) is an RNA modification that interacts with numerous coding and non-coding RNAs and plays important roles in the development of cancers. Nonetheless, the clinical impacts of m6A interactive genes on these ca...
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Open Access (DOAJ)
DOI: 10.1186/s12943-021-01362-2
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
Shuanming Li, Yi Lu • Risks
(2018)
This paper studies the moments and the distribution of the aggregate discounted claims (ADCs) in a Markovian environment, where the claim arrivals, claim amounts, and forces of interest (for discounting) are influenced by an underlying Mark...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/risks6020059
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
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
I Nyoman Widana, Ni Luh Putu Suciptawati, Sulma Sulma • Barekeng
(2024)
Program Education plays a vital role in improving human resources. But on the other hand, education costs are not cheap. For this reason, people need to prepare education funds from an early age. One way is to take part in an education insu...
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Open Access (DOAJ)
DOI: 10.30598/barekengvol18iss4pp2555-2562
Tristan Curteis, Augustine Wigle, Christopher J. Michaels, Adriani Nikolakopoulou • BMC Medical Research Methodology
(2025)
Abstract Background In network meta-analysis (NMA), the magnitude of difference between treatment effects is typically ignored in the calculation of ranking metrics, such as probability best and surface under the cumulative ranking curve (S...
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Open Access (DOAJ)
DOI: 10.1186/s12874-025-02499-0
George Ukam, Charles Adams, Atinuke Adebanji, Williams Ackaah • Cogent Engineering
(2024)
The nature of paratransit services makes for increased uncertainty in trip time, leading to reported unreliability and dissatisfaction by the users. While providing travel information has proved helpful in formal bus services and has been r...
DOAJ
Open Access (DOAJ)
DOI: 10.1080/23311916.2024.2386383
Japheth Musingila Mwongela, Caroline Kanyiri, Virginia Kitetu • Journal of Applied Mathematics
(2026)
Leptospirosis is a widespread zoonotic bacterial disease that continues to pose a major public health challenge, particularly in developing countries where it causes substantial morbidity, mortality, and economic losses. A key problem in co...
DOAJ
Open Access (DOAJ)
DOI: 10.1155/jama/5513951
Peter Olusakin Oladoye, Timothy Oladiran Ajiboye, Wycliffe Chisutia Wanyonyi, Elizabeth Oyinkansola Omotola et al. • Sustainable Chemistry for the Environment
(2023)
The extensive usage of malachite green (MG) dyes in the fish and dye industries cause serious water pollution, leading to catastrophic effects on living organisms and the environment. In addressing the challenges of health risks related to ...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.scenv.2023.100033
Olga Vishnyakova, Joosung Min, Stephen Leach, Xiaowei Song et al. • Communications Medicine
(2026)
Abstract Background Chronological age does not capture individual health or resilience. Advances in metabolomics have enabled development of molecular aging biomarkers that capture deviations between biological and chronological age, highli...
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Open Access (DOAJ)
DOI: 10.1038/s43856-026-01375-2