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Yu Yang, Changhao Xin, Yidan Sun, Junzhen Di and Pengfei Liang
Incomplete data indicate that coal gangue is accumulated in China, with over 2000 gangue hills covering an area exceeding 200,000 mu and an annual growth rate surpassing 800 million tons. This accumulation not only signifies a substantial waste of resour...
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Changping Sun, Mengxia Li, Linying Chen and Pengfei Chen
Effective utilization of tugboats is the key to safe and efficient transport and service in ports. With the growth of maritime traffic, more and more large seaports show a trend toward becoming super-scale, and are divided into multiple specialized termi...
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Pengfei Sun, Jinrun Wang, Yongyu Tan, Siyuan He, Xin Liu, Haiyan Zhang and Gang Hou
Being a biologically diversed hotspot in the global marine ecosystem, the Beibu Gulf is inhabited by a high diversity of fish and serves as a vital fishing ground in China. Due to continuous overfishing, the fishery resource has drastically declined in t...
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Shihang Liu, Jianmin Yang, Haining Lu, Pengfei Sun and Bei Zhang
The discharge of sediment plumes, which occurs mainly in the two depth zones, has a critical impact on assessing the deep-sea environment. Therefore, it is necessary to establish the corresponding physical oceanography for the evolution of these sediment...
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Maozhen Xia, Haining Lu, Jianmin Yang and Pengfei Sun
Deep-sea mining vehicles (DSMVs) are highly prone to sinking and slippage when traveling on extremely soft seafloor sediments. In addition, DSMVs can be vulnerable to dangerous situations such as overturning due to the non-homogeneous characteristic of t...
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Zhijie Sun, Pengfei Li, Xiuli Du and Xuanyu Yang
There are a large number of structural planes distributed in the surrounding rock of a tunnel, and this is one of the key factors causing a tunnel?s instability. Due to different geological and historical conditions, the distribution characteristics and ...
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Zhongguang Sun, Qinghua Zhang, Jun Zhang, Yi Zhang and Pengfei Wang
To study the mechanical damage characteristics of rock under the effect of subversion, a series of mechanical experiments, including both uniaxial and triaxial mechanical compression experiments under various levels of water content were performed. In th...
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Wei Chen, Yuzhou Tian, Qiang Sun and Pengfei Zhu
Due to the special meshing of convex and concave tooth profiles, an S-shaped tooth profile gear with a few teeth has the advantage of reducing the contact stress and improving the contact ratio. However, the theoretical inseparability of the center dista...
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Pengfei Sun, Jun Wei, Yaoyao Gao, Zuhao Zhu and Xiao Huang
Immobilized microbial materials can effectively remove pollutants from surface water, and a biochar/clay composite particle (BCCP) material is prepared with immobilized Flavobacterium mizutaii sp. and Aquamicrobium sp. to remove ammonia nitrogen (NH4+?N)...
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Pengfei Du, Xi Zhao, Zhidong Zhang, Xiaoyan Sun and Gang Du
Cold-formed steel (CFS) structures are widely used in construction and infrastructure due to their lightweight and high-strength properties. However, their thin-walled nature makes them geometrically sensitive to compressive loading. The Digital Twin (DT...
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