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Kun Zhang, Pengbo Chang, Jianxi Ren, Zheng Liu and Ke Wang
The fractured rock mass in the western cold region is affected by freezing and thawing disasters and is prone to local damage and fracture along the fissures? ends. The fatigue damage induced by repeated frost heave and traffic loads seriously endangers ...
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Goran Buba?, Antonela Ci?me?ija and Andreja Kovacic
After the introduction of the ChatGPT conversational artificial intelligence (CAI) tool in November 2022, there has been a rapidly growing interest in the use of such tools in higher education. While the educational uses of some other information technol...
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Susan Gabriela Lakkis, Pablo O. Canziani and Adrián E. Yuchechen
The recovery of early records of maximum, minimum, and mean temperatures; pressure; and relative humidity measurements in Puerto Madryn for the period 1902?1915 is presented. A careful evaluation of the quality of the data was performed using internal co...
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Li Zhao, Nathee Naktnasukanjn, Ahmad Yahya Dawod and Bin Zhang
The efficient capital markets hypothesis (EMH) posits that security prices incorporate all available information in capital markets. Nevertheless, real stock markets often exhibit speculative behavior due to information asymmetry and the limited rational...
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Zereng Chen, Qinghe Zhang, Guoquan Ran and Yang Nie
A wetting and drying treatment for a three-dimensional discontinuous Galerkin hydrodynamic model without mode splitting (external and internal modes) was developed. In this approach, computing elements are classified into wet, dry, and semidry elements, ...
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Haipeng Lin, Xuefeng Song, Fei Dai, Fengwei Zhang, Qiang Xie and Huhu Chen
Hardness is a critical mechanical property of grains. Accurate predictions of grain hardness play a crucial role in improving grain milling efficiency, reducing grain breakage during transportation, and selecting high-quality crops. In this study, we dev...
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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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Weiqi Huang, Yingjun Guan, Hao Wang, Huanquan Lu and Huisheng Yang
The drive and deployment unit of the variable diameter internal drive device described in this paper is primarily intended for use in space deployment structures. This innovative mechanism is expected to serve as a potential deployment mechanism for larg...
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Meylí Valin Fernández, José Luis Valin Rivera, Frank Pérez Rodríguez, Henry Figueredo Losada, María Elena Fernández Abreu, Francisco Rolando Valenzuela Diaz, Angel Rodríguez Soto, Alexander Alfonso Alvarez, Roberto Quinteros, Cristobal Galleguillos Ketterer and Gilberto García del Pino
A characterization of composite materials of a polyester matrix reinforced with natural fibers of Cuban henequen and organophilized Cuban bentonite was carried out, the experimental results of which are used to formulate, implement, and validate a scalar...
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Hui Yang, Songcheng Jiang, Yan Wang and Hong Xiao
A multi-dimensional morphing wing skeleton mechanism is proposed with double-sided triangular pyramid units, which can realize continuous variable span-wise bend, span-wise twist, and sweep. A lockable morphing unit is designed, and its mechanism/structu...
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