Results 1 to 10 of about 244,875 (297)

Optimization of satellite resource scheduling under regional target coverage conditions

open access: yesOpen 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   +5 more
doaj   +1 more source

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

open access: yesSN 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   +5 more
doaj   +1 more source

A Novel Monitoring Strategy Combining the Advantages of NPE and GMM

open access: yesIEEE 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   +3 more
doaj   +1 more source

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

open access: yesIEEE 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

Adaptive Multiscale Weighted Permutation Entropy for Rolling Bearing Fault Diagnosis [PDF]

open access: yes, 2020
© 2020 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/.Bearing vibration signals contain non-linear and non-stationary features due to ...
Huo, Zhiqiang   +3 more
core   +2 more sources

Fault Diagnosis

open access: yes, 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   +2 more
openaire   +4 more sources

Experimental set-up for investigation of fault diagnosis of a centrifugal pump [PDF]

open access: yes, 2017
Centrifugal pumps are complex machines which can experience different types of fault. Condition monitoring can be used in centrifugal pump fault detection through vibration analysis for mechanical and hydraulic forces. Vibration analysis methods have the
Ali Saud Al Tobi, Maamer   +4 more
core   +1 more source

Sensor Fault Diagnosis [PDF]

open access: yesFoundations and Trends® in Systems and Control, 2016
1
Christos G. Panayiotou   +2 more
  +7 more sources

A droplet routing technique for fault-tolerant digital microfluidic devices [PDF]

open access: yes, 2008
—Efficient droplet routing is one of the key approaches for realizing fault-tolerant microfluidic biochips. It requires that run-time diagnosis and fault recovery can be made possible in such systems.
Kerkhoff, Hans G.   +2 more
core   +3 more sources

Diagnosis of Intermittent Faults [PDF]

open access: yesDiscrete 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   +2 more
openaire   +3 more sources

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