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Stavroula Dimitriadou and Konstantinos G. Nikolakopoulos
The aim of this study was to investigate the utility of multiple linear regression (MLR) for the estimation of reference evapotranspiration (ETo) of the Peloponnese, Greece, for two representative months of winter and summer during 2016?2019. Another obj...
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Lingzhi Yin and Yafei Wang
The internal structure and operation rules of railway network have become increasingly complex along with the expansion of the network, putting a higher demand on the development of the railway and the reliability and adaptability of the railway under ea...
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Godfrey A. Mmbando and Michael Kleyer
It is still a challenge to provide spatially explicit predictions of climate parameters in African regions of complex relief, where meteorological information is scarce. Here we predict rainfall, temperature, and reference evapotranspiration (ETo
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Guanqun Liu, Naifeng Wen, Feifei Long and Rubo Zhang
This study introduces a method for formation control and obstacle avoidance for multiple unmanned surface vehicles (USVs) by combining an artificial potential field with the virtual structure method. The approach involves a leader?follower formation stru...
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Maria Cristina Porcu, Juan Carlos Vielma Pérez, Gavino Pais, Diego Osorio Bravo and Juan Carlos Vielma Quintero
Due to their excellent seismic behavior, shear wall-type concrete buildings are very popular in earthquake-prone countries like Chile. According to current seismic regulations, the performance of such structures can be indifferently assessed through line...
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Baris Baykant Alagoz, Aleksei Tepljakov, Eduard Petlenkov and Celaleddin Yeroglu
Due to unpredictable and fluctuating conditions in real-world control system applications, disturbance rejection is a substantial factor in robust control performance. The inherent disturbance rejection capacity of classical closed loop control systems i...
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Alexandr Shavelkin,Jasim Mohmed Jasim Jasim,Iryna Shvedchykova
Pág. 14 - 22
Improvement of the current control loop of the multifunctional grid-tied inverter of the local object electrical power system is considered. The purpose is ensuring compliance with the quality standards of the grid current in the whole range of its value...
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Ekachai Asa and Yoshio Yamamoto
This research presents an automatic flight control system whose advantage is its ease of modification or maintenance while still effectively meeting the system?s performance requirement. This research proposes a mixed servo state-feedback system for cont...
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Jian Qin, Zhenquan Zhang, Xuening Song, Shuting Huang, Yanjun Liu and Gang Xue
In order to enhance the power generation efficiency and reliability of wave energy converters (WECs), an enclosed inertial WEC with a magnetic nonlinear stiffness mechanism (nonlinear EIWEC) is proposed in this paper. A mathematical model of the nonlinea...
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Zhiqiang Zhang, Chunyan Zhang, Yinhu Qiao, Yudie Zhou and Shuaishuai Wang
In this paper, a constrained optimization by linear approximation (COBYLA) algorithm is used to optimize the design of a 5 MW wind turbine blade. In the process of blade material modeling, the actual manufacturing conditions are considered, and the load ...
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Azizah Nurul Khoirunnisa, Munir and Laksmi Dewi
(1) Background: Augmented reality is no less popular than virtual reality. This technology has begun to be used in education fields, one of which is special education. Merging the real and virtual worlds is the advantage of augmented reality. However, it...
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Jingjing Fu, Zhichao Cui, Yongsheng Chen, Chunsong Guan, Mingjiang Chen and Biao Ma
The compression molding performance of a substrate block has a significant effect on the quality and stability of mechanical transplanting. The physical experiment and DEM simulation were combined to evaluate the compression molding behavior of substrate...
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Xin Qi, Chunyang Sheng, Yongbao Guo, Tao Su and Haixia Wang
Aiming at the problem that online parameter identification, based on the Model Reference Adaptive System (MRAS), is easily affected by the high-frequency noise of the sensor, an improved MRAS, based on variable bandwidth linear Active Disturbance Rejecti...
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Kirill Chernov, Uliana Monakhova, Yaroslav Mashtakov, Shamil Biktimirov, Dmitry Pritykin and Danil Ivanov
The paper presents a study of decentralized control for a satellite formation flying mission that uses differential lift and drag to enforce the relative positioning requirements. All spacecraft are equipped with large sunlight reflectors so that, given ...
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Apolinario Lujano, Miguel Sanchez-Delgado and Efrain Lujano
The FAO 56 Penman?Monteith equation (PM) is considered the most accurate method for estimating reference evapotranspiration (ETo). However, PM requires a large amount of data that is not always available. Thus, the objective of this study is to improve t...
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Jingmin Zhang, Xiaokui Yue, Haofei Zhang and Tiantian Xiao
This paper investigates the air?ground cooperative time-varying formation-tracking control problem of a heterogeneous cluster system composed of an unmanned ground vehicle (UGV) and an unmanned aerial vehicle (UAV). Initially, the structure of the UAV?UG...
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Marco Lombardo, Marco Zannoni, Igor Gai, Luis Gomez Casajus, Edoardo Gramigna, Riccardo Lasagni Manghi, Paolo Tortora, Valerio Di Tana, Biagio Cotugno, Simone Simonetti, Silvio Patruno and Simone Pirrotta
In the framework of the Artemis-1 mission, 10 CubeSats will be released, including the 6U CubeSat ArgoMoon, built by the Italian company Argotec and coordinated by the Italian Space Agency. The primary goal of ArgoMoon is to capture images of the Interim...
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Botian Zhou, Sha Luo and Shijie Zhang
Planetary rovers play a critical role in space exploration missions, where one of the most fundamental algorithms is pose determination. Due to environmental and computational constraints, real-time pose determinations of planetary rovers can only use lo...
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Roberto Dima, Giovanni Buonanno, Sandra Costanzo and Raffaele Solimene
Curve-fitting means the determination of the set of parameters that best fit the input data set as expressed by a given function that is usually non-linear. The paper addresses the curve fitting of Debye and Cole?Cole models to a dielectric permittivity ...
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Guisheng Zhao, Shaonan Chen, Yixiang Liu and Kai Guo
In real-world applications, hydraulic pressure control performance is influenced by model uncertainties, the control bandwidths of valves and pumps, and deviations from the linear working region. To overcome the aforementioned obstacles, a novel referenc...
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