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Huiyun Zhong, Liangfei Dong, Yuanyuan Tang, Lin Qi and Mengyu Wang
In this study, a laboratory-scale membrane aerated biofilm reactor system was operated successively through four phases with different C/N ratios (7, 5, 3, and 1) for 15 days each to investigate the C/N ratio?s effect on the COD and nitrogen removal. The...
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Yu Chen, Qi Dong, Xiaozhou Shang, Zhenyu Wu and Jinyu Wang
Unmanned aerial vehicles (UAVs) are important in reconnaissance missions because of their flexibility and convenience. Vitally, UAVs are capable of autonomous navigation, which means they can be used to plan safe paths to target positions in dangerous su...
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Qi Liu, Jiajun Qiao, Dong Han, Mengjuan Li and Liangxiao Shi
Cultivated land is a vital factor in agricultural production but faces multiple challenges, including declining total area, spatial transformation, and ecological degradation. It is imperative to enhance cultivated land use eco-efficiency (CLUE). This st...
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Qi Wang, Peng Guo, Shiwei Dong, Yu Liu, Yuchun Pan and Cunjun Li
Accurate extraction of cropland distribution information using remote sensing technology is a key step in the monitoring, protection, and sustainable development of black soil. To obtain precise spatial distribution of cropland, an information extraction...
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Qi Meng, Xixiang Zhang, Yun Dong, Yan Chen and Dezhao Lin
Relationship extraction is a crucial step in the construction of a knowledge graph. In this research, the grid field entity relationship extraction was performed via a labeling approach that used span representation. The subject entity and object entity ...
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Yiwen Wang, Dongna Liu, Haiyu Dong, Junwei Lin, Qi Zhang and Xiaohui Zhang
Through the stability evaluation of a slope, a landslide geological disaster can be identified, and the safety and risk control of a project can be ensured. This work proposes an improved sparrow search algorithm to optimize the slope safety factor predi...
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Chunliang Dong, Chaotao Fan, Xiaoyu Lu, Guangming Zhao, Minjie Qi and Ruipeng Qin
To study the mechanical and energy evolution characteristics of sandstone under true triaxial cyclic loading, a sandstone mechanical test with different intermediate principal stress under true triaxial loading was conducted using the rock true triaxial ...
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Ri Wang, Fengfei Lou, Bin Qi, Rong A, Yuanye Zhou and Sujun Dong
In this paper, aimed at the problem of large temperature gradient thermal testing with the typical sharp wedge leading edge structure of a hypersonic vehicle, a subsonic high-temperature combustion gas heating (SHCH) test device is used to conduct a seri...
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Peng Yu, Jie Dong, Yong Guan, Qing Wang, Shixiang Jia, Meijun Xu, Hongjun Liu and Qi Yang
The shear behavior and dynamic response of a steel?silt interface are significant for the safety and stability of offshore structures in the Yellow River Delta. A series of steel?silt interface cyclic shear tests under constant normal load conditions (CN...
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Yeshou Xu, Qi He, Ying-Qing Guo, Xing-Huai Huang, Yao-Rong Dong, Zhong-Wei Hu and Jinkoo Kim
Viscoelastic dampers are conventional passive vibration control devices with excellent energy dissipation performance. The fractional derivative has a simple form and high accuracy in the modelling of viscoelastic materials/dampers. The internal variable...
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