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Academic Articles & Research Papers
Showing 20 of 736 academic articles
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
Feng Hong, Xinsheng Wang, Dong Lu, Tingxi Meng et al. • Journal of Materials Research and Technology
(2026)
Ultra-thin metallic bellows are critical components in new energy vehicles and aerospace applications, yet their forming precision is significantly challenged by size effects when the wall thickness is reduced to the mesoscopic scale. This ...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.jmrt.2026.09.159
Ya Yang, Chuanchang Li, Xiaonan Hou, Chunlei Wang et al. • AIP Advances
(2022)
Conventional spray particle detection methods have disadvantages such as spray field interference, large subjective standard error, and an inability to specifically analyze the spray particle movement. Manual methods used the uniformity of ...
DOAJ
Open Access (DOAJ)
DOI: 10.1063/5.0083129
Randa Asa’d, V. D. Ivanov, I. Negueruela, J. M John et al. • The Astronomical Journal
(2023)
Recent surveys have uncovered new young massive clusters that host dozens of red supergiants (RSGs) near the inner Galaxy. However, many of them have still not been fully studied. Using Very Large Telescope/X-shooter near-infrared spectra, ...
DOAJ
Open Access (DOAJ)
DOI: 10.3847/1538-3881/acc841
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
Ju Jia, Zhaoxia Xiang, Lina Wang, Yan Xu • IEEE Access
(2019)
Steganography is to embed secret information into digital media and minimize the distortion caused by data embedding. The JPEG is a widely used image compression format, and many JPEG images transmitted on the network are double compressed....
DOAJ
Open Access (DOAJ)
DOI: 10.1109/ACCESS.2019.2926226
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
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
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
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
Rhoda Dadzie-Dennis, Samuel K.-B. Dzidzornu • Journal of Applied Mathematics
(2026)
The study contributes a contemporary perspective to the evolving discourse on the relative performance of three managed investing styles: Deep Value, Growth, and Blended portfolios. Deep Value investing focuses on fundamentally strong but u...
DOAJ
Open Access (DOAJ)
DOI: 10.1155/jama/8261109
Sylvester Sebola, Niladri Chakraborty, Morné Rowan Sjölander • Mathematics
(2026)
This paper proposes a combined maximal precedence–exceedance test (MPErs) that integrates maximal precedence and maximal exceedance statistics tests to provide sensitivity to both early and late distributional differences between two sample...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/math14203658
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
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
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
Samuel Kipsang Kaptum, Jane Aduda Akinyi, Philip Ngare, Amos Kipkorir Langat • Scientific African
(2025)
Herd behaviour in socio-economic systems is characterised by asynchronous, stochastic decision-making that traditional models capture imperfectly. Discrete-time DTMCs impose fixed-tick synchrony and require binning, which distorts event tim...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.sciaf.2025.e03042
Džiugas Chvoinikov, Svyatoslav Novikov, Jonas Šiaulys • Axioms
(2026)
We investigate the asymptotic behavior of the product of Gaussian random variables, with a focus on tail probabilities. Although sums of normal variables are well understood through classical limit theorems, their products exhibit significa...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/axioms15060425
FILALI, Tarek • Journal of Social Sciences
(2023)
This study aims to investigate the degree of application of advanced management accounting methods within Jordanian banks. The researcher tries also to assess the effect of the degree of application of advanced management accounting methods...
DOAJ
Open Access (DOAJ)
DOI: https://doi.org/10.52326/jss.utm.2023.06(1).03
Paras Mani Acharya, Panu Thainiramit, Kuaanan Techato, Suraj Baral et al. • Global Ecology and Conservation
(2023)
Ever increasing anthropogenic pressures and natural threats to freshwater ecosystems are impacting global biodiversity. Otters are an indicator species that have an important role in maintaining the integrity and stability of wetland ecosys...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.gecco.2023.e02578