Chaotic and Quasi-periodic Regimes in the Covid-19 Mortality Data by Ekrem Aydıner, Erkan Yılmaz

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Research on time–frequency characteristics of contact force based on wavelet transform by Fang He, Jian Zhang

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Threshold dynamics of a time periodic and two–group epidemic model with distributed delay by Lin Zhao, Zhi-Cheng Wang, Liang Zhang

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Two-scale convergence analysis and numerical simulation for periodic Kirchhoff plates by Zhiwei Huang, Xiaomiao Zeng, Chen Wang, Chongren Liu

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Rings decomposed into direct sums of J-rings and nil rings by Hisao Tominaga

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Complex dynamics of a predator-prey fishery model: The impact of the Allee effect and bilateral intervention by Yuan Tian, Yang Liu, Kaibiao Sun

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Distorting Electrical Power of the Alternating Current in the Simplest Circuit with a Diode by O. V. Bialobrzheskyi, D. Y. Rod`kin

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Using roof borehole electrical resistivity tomography to monitor roof water infiltration in a mine work face by Liang Du, Wenjin Zhu, Lei Wang, Hao Li, Xiaoyu Jiao, Teng Qin

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On the motion of a viscous liquid with a free boundary by V. L. Sennitskii

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The Malthusian parameter and $R_0$ for heterogeneous populations in periodic environments by Hisashi Inaba

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Heteroclinic bifurcation for a general predator-prey model with Allee effect and state feedback impulsive control strategy by Qizhen Xiao, Binxiang Dai

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On structure of certain periodic rings and near-rings by Moharram A. Khan

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Effect of different feeding regimes in amur common carp fingerlings: compensatory growth, physio-metabolic responses, and expression of IGF-1 gene by Chowdhury Arka, Ghosh Tapas Kumar, Khatua Sanjib, Hore Sayani, Kumari Palak, Kajal Kumari, Jana Prasanta

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Formation and growth mechanism of the α2 lath within the γ phase in high Nb containing TiAl alloy by Gengwu Ge, Gang Yang, Yingchao Guo, Yongfeng Liang, Junpin Lin

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ON SOLVABILITY OF SOME BOUNDARY-VALUE PROBLEMS FOR THE NON-LOCAL POISS by B. Kh. Turmetov

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Fairy circles and temporal periodic patterns in the delayed plant-sulfide feedback model by Xin Wei, Jianjun Paul Tian, Jiantao Zhao

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Micron-scale imaging using bulk ultrasonics by Loheshwaran Chandran, Mohamed Subair Syed Akbar Ali, Bradley Bobbs, Chandan Dutta, Joseph JD, Enakshi Bhattacharya, Prabhu Rajagopal

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Study on the heat transfer characteristics of mine roadway surrounding rock under periodic airflow temperature: Numerical simulation and experimental validation by Mingyan Guo, Yueping Qin, Dongyang Han, Fei Tang, Shibin Wang, Hairong Wang

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Pencil Beam Planar Ka-Band Antenna Array Using Waveguide Displaced Radiators Sections for Millimeter Wave Applications by Hany S. Hussein, Mohamed Ismeil, M. S. Yasseen, Yuri E. Sedelnikov, Mohamed N. Shaaban

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Integrability of doubly-periodic Riccati equation by Ma Ling, Guan Ke-Ying

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