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Weiqiang Liao, Xin Dong, Rongfeng Yang and Zhongfei Qiao
In response to the constant power negative impedance characteristics on the load side of a ship DC microgrid, leading to voltage oscillation issues in the DC bus, this paper proposes a control optimization method based on impedance reshaping using bus vo...
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Liang Chi, Mengshuai Zhu, Chen Shen, Jing Zhang, Liwei Xing and Xiangyang Zhou
This paper explores the impact of e-commerce on profit margin from the perspective of scale using nation-level survey data from China. The results show that e-commerce can increase the profit margin of cooperatives, and that a higher proportion of sales ...
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Xiuquan Hu, Hong Liu, Xiucheng Tan, Chenjing Xiao, Qian Tan, Jianghan Li and Chi Yi
The requirements for the accurate characterization of shoal sediments have increased in view of the fact that strata are eroded due to uplift and it is difficult to calculate the real thickness of granular shoal. To solve this problem, with the shoal-to-...
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Ahmer Bilal, Renchao Yang, Muhammad Saleem Mughal, Hammad Tariq Janjuhah, Muhammad Zaheer and George Kontakiotis
An integrated study based on field observation, petrography, and scanning electron microscopy (SEM) on the Early?Middle Eocene carbonate rocks has been carried out, which were deposited in the Ceno-Tethys Ocean. The study area of the Yadgaar Section lies...
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Yi Liu, Jiang Chen, Jinxin Cheng and Hang Xiang
The complicated flow conditions and massive design parameters bring two main difficulties to the aerodynamic optimization of axial compressors: expensive evaluations and numerous optimization variables. To address these challenges, this paper establishes...
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Andrea Aprovitola, Oleksandr Dyblenko, Giuseppe Pezzella and Antonio Viviani
The recent improvement of technology readiness level in aeronautics and the renewed demand for faster transportation are driving the rebirth of supersonic flight for commercial aviation. However, the design of a future supersonic aircraft is still very c...
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George Kontakiotis, Leonidas Moforis, Vasileios Karakitsios and Assimina Antonarakou
Sedimentological, micropalaeontological, and marine geological results from the Early Jurassic to Eocene carbonate formations of the Ionian zone, from six localities of Epirus, provide new insights into the basin palaeogeographic evolution and better cor...
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Jie Yang ; Limin Jia ; Yunxiao Fu ; Shaofeng Lu
Pág. 76 - 90
Based on the characteristics of freight train control, which are nonlinear, time-delay, with multi-constraint and multiobjective, this paper focuses on speed tracking problem. Firstly, in a gradual process, a multi-modal fuzzy PID (MM-FPID) control algor...
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Norberto Malumian,Gabriel Jannou
Pág. 345 - 374
The succession of microfossil assemblages in the almost complete marine Late Cretaceous-Miocene stratigraphic column found in the Fuegian Andes, the orogenic margin of the Austral Basin, reveals a close relationship with the local tectonic events, the At...
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Javier Gonzalez,Hans Niemeyer,Juan L. Benedetto,Edsel D. Brussa
Pág. 277 - 290
The Cordón de Lila is located immediately to the south of the Salar de Atacama, in northern Chile. The geology of the Cordón de Lila is characterized by extensive outcrops of Early Paleozoic volcanic and sedimentary rocks (Cordón de Lila Igneous and Sedi...
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