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Jocelyn Sabatier and Christophe Farges
This paper proposes algorithms to model fractional (dynamical) behaviors using non-singular rational kernels whose interest is first demonstrated on a pure power law function. Two algorithms are then proposed to find a non-singular rational kernel that a...
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Johannes Brötz, Christian Schänzle and Peter F. Pelz
The efficiency definition allows us to compare two machines with each other. In general, the efficiency is defined as the ratio of usable power to the required power. This raises the question: what is the usable power? Most engineers discuss efficiency o...
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Wenjie Qing, Binfeng Pan, Yueyang Hou, Shan Lu and Wenjing Zhang
In this study, the problem of the stabilisation of a class of nonautonomous nonlinear systems was studied. First, a fractional stability theorem based on a fractional-order Lyapunov inequality was formulated. Then, a novel fractional-order sliding surfac...
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Bolun Huang and Qi Yang
The open-frame structure of work-class ROVs results in significant model uncertainties, and its motion is strongly disturbed by the umbilical cable. To address these problems, this article developed a nonlinear disturbance observer-based super-twisting d...
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Jia Song, Xindi Tong, Xiaowei Xu and Kai Zhao
In this paper, a real-time reentry guidance law for hypersonic vehicles is presented to accomplish rapid, high-precision, robust, and reliable reentry flights by leveraging the Time to Vector (Time2vec) and transformer networks. First, referring to the t...
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Hongyu Zheng, Juan Gao, Juxia Xiong, Guanglei Yao, Hongjiang Cui and Lirong Zhang
Aiming at the scheduling problem of logistics distribution vehicles, an enhanced artificial electric field algorithm (SC-AEFA) based on the sine cosine mechanism is proposed. The development of the SC-AEFA was as follows. First, a map grid model for ente...
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João Tiago Silveira, Tiago Fidalgo de Freitas, Gonçalo Fabião and Miguel Assis Raimundo
The present paper intends to provide an overview and a critical assessment of the administrative simplification policies implemented in Portugal over the past 20+ years. Throughout these decades, the major instruments for administrative simplification ha...
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Xin Wang, Jinchi Zhao, Yinchen Yang and Yukun Xu
In industrial sites, the movement and contact behaviors of workers are random, but their frequency and statistical characteristics can be determined. Particularly in machining workshops, metalworking fluids (MWFs) cause liquid oil contamination on the pr...
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Manuela Scamardo, Marco Zucca, Pietro Crespi, Nicola Longarini and Sara Cattaneo
Throughout the last few decades, the scientific community has paid great attention to the structural safety of historical masonry constructions, which have high vulnerability with respect to seismic activities. Masonry towers are very widespread in Italy...
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Kanako Toyosada and Li Xu
Electric bidets have become widespread in Japan and are now rapidly being installed across the rest of Asia, the United States, and the European Union. However, the impact on water infrastructure has not yet been sufficiently evaluated. Using Japan as an...
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