Results 1 to 10 of about 99,648 (313)

Optimization of satellite resource scheduling under regional target coverage conditions

Open Astronomy, 2022
This study presented a mathematical description of an arbitrary shape area, and after analyzing the characteristics of the near-polar orbital co-ground trajectory constellation that satisfies the revisit interval constraint, an optimization model of the ...
Liu Kaixi, Wang Yajie, Zhang Baohui, Liu Hu, Wang Xu, Wei Bin   +5 more
doaj   +1 more source

Experimental study of the effect of fallen leaf shading on the polarization characteristics of photovoltaic modules

SN Applied Sciences, 2023
Coverings have an important impact on the output and safety of photovoltaic (PV) modules. However, due to the complex on-site environment and difficult identification, it is difficult to obtain timely and effective cleaning.
Darong Zhu, Duanbiao Wang, Fangbin Wang, Xue Gong, Gang Yang, Ruiyang Yan   +5 more
doaj   +1 more source

A Novel Monitoring Strategy Combining the Advantages of NPE and GMM

IEEE Access, 2020
Semiconductor manufacturing process data usually have multimodel and multiphase characteristics which do not meet the application assumptions in neighborhood preserving embedding (NPE).
Cheng Zhang, Xunian Dai, Xiaofang Zheng, Yuan Li   +3 more
doaj   +1 more source

Fault Detection in the Tennessee Eastman Benchmark Process Using Principal Component Difference Based on K-Nearest Neighbors

IEEE Access, 2020
Industrial data usually have nonlinear or multimodal characteristics which do not meet the data assumptions of statistics in principal component analysis (PCA). Therefore, PCA has a lower fault detection rate in industrial processes.
Cheng Zhang, Qingxiu Guo, Yuan Li
doaj   +1 more source

Fault Diagnosis

, 2017
This book presents a set of approaches for the real-time monitoring and control of drinking-water networks based on advanced information and communication technologies. It shows the reader how to achieve significant improvements in efficiency in terms of water use, energy consumption, water loss minimization, and water quality guarantees.
Escobet Canal, Teresa, Sarrate Estruch, Ramon, Comasòlivas Font, Ramon   +2 more
openaire   +4 more sources

Sensor Fault Diagnosis [PDF]

Foundations and Trends® in Systems and Control, 2016
1
Christos G. Panayiotou, Marios M Polycarpou, Vasso Reppa   +2 more
  +7 more sources

Diagnosis of Intermittent Faults [PDF]

Discrete Event Dynamic Systems, 2004
Discrete event systems (DESs) are considered for which faulty behaviour occurs ``intermittently'', with fault events \(f_i\), \(i=1,\dots,m\), followed by reset events \(r_i\), \(i=1,\dots,m\), followed by new occurrences of fault events, and so forth.
Contant, Olivier, Lafortune, Stéphane, Teneketzis, Demosthenis   +2 more
openaire   +3 more sources

A Novel Hybrid-Fuel Storage System of Compressed Air Energy for China

Energies, 2014
Compressed air energy storage (CAES) is a large-scale technology that provides long-duration energy storage. It is promising for balancing the large-scale penetration of intermittent and dispersed sources of power, such as wind and solar power, into ...
Wenyi Liu, Linzhi Liu, Gang Xu, Feifei Liang, Yongping Yang, Weide Zhang, Ying Wu   +6 more
doaj   +1 more source

Dynamic Modelling and Continuous Trajectory Tracking Control of Space Robots Based on Lie Group SE(3)

International Journal of Aerospace Engineering, 2023
For space robots, it is difficult to track continuous time-varying manifolds on SE(3) by using traditional closed-loop control strategies, which are designed to track the position and the attitude separately.
Yong Wang, Kejie Gong, Yurui Duan, Boyong He, Hong Ma   +4 more
doaj   +1 more source

Analog fault diagnosis: a fault clustering approach [PDF]

Proceedings ETC 93 Third European Test Conference, 2002
A novel analog circuit fault diagnosis method is proposed. This method uses a neural network paradigm to cluster different faults. It is capable of dealing with the common fault models in analog circuits, namely the catastrophic and parametric faults. The proposed technique is independent of the linearity or nonlinearity of the circuit.
Somayajula, S.S., Sanchez-Sinencio, E., Pineda de Gyvez, J.   +2 more
openaire   +1 more source