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7. Improved Pump Setpoint Selection Using a Calibrated Hydraulic Model of a High-Pressure Irrigation System

Author

Wang, Ye, Zhao, Qi, Wu, Wenyan, Willis, Ailsa, Simpson, Angus R., and Weyer, Erik

Subjects
Electrical Engineering and Systems Science - Systems and Control
Abstract

This paper presents a case study of the operational management of the Robinvale high-pressure piped irrigation water delivery system (RVHPS) in Australia. Based on datasets available, improved pump setpoint selection using a calibrated hydraulic model is investigated. The first step was to implement pre-processing of measured flow and pressure data to identify errors in the data and possible faulty sensors. An EPANET hydraulic simulation model was updated with calibrated pipe roughness height values by using the processed pressure and flow data. Then, new pump setpoints were selected using the calibrated model given the actual measured demands such that the pressures in the network were minimized subject to required customer service standards. Based on a two-day simulation, it was estimated that 4.7% savings in pumping energy cost as well as 4.7% reduction in greenhouse gas emissions can be achieved by applying the new pump setpoints., Comment: 2nd IFAC Workshop on Control Methods for Water Resource Systems

Published
2022

9. Real-Time Multi-Class Classification of Water Quality Using MLP and Ensemble Learning

Author

Shahra, Essa Q., Basurra, Shadi, Wu, Wenyan, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Yang, Xin-She, editor, Sherratt, R. Simon, editor, Dey, Nilanjan, editor, and Joshi, Amit, editor

Published
2024
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21. Seeing it both ways: examining the role of inhibitory control in level-2 visual perspective-taking

Author

Yuan, Meng, Jiang, Ronghuan, Li, Xiaodong, and Wu, Wenyan

Subjects
Psychological research, Set (Psychology) -- Research, Empathy -- Research, Psychology and mental health
Abstract

Level-2 visual perspective taking (VPT) refers to the ability to understand that other people may see objects differently. Using the number verification task, previous studies have found egocentric and altercentric biases in level-2 VPT. However, the cognitive mechanism of these biases is still unclear. Thus, the present study used the adapted negative priming (NP) paradigm to investigate the role of inhibitory control in overcoming these biases in two experiments. In Experiment 1, we found egocentric bias and observed the NP effect for children and adults. However, there was no significant difference between children and adults in the magnitude of the NP effect, indicating that when children can overcome the egocentric bias in the level-2 VPT, their inhibitory control ability is comparable to that of adults. In Experiment 2, altercentric bias was confirmed in children and adults. However, we did not observe the NP effect in children. These results suggest that children may not have sufficient cognitive capacity to suppress others' perspectives, or may not experience interference by others' perspectives and thus have no need to inhibit., Author(s): Meng Yuan [sup.1] , Ronghuan Jiang [sup.1] , Xiaodong Li [sup.1] , Wenyan Wu [sup.1] Author Affiliations: (1) https://ror.org/01vy4gh70, grid.263488.3, 0000 0001 0472 9649, School of Psychology, Shenzhen University, [...]

Published
2023
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32. Minimizing Pumping Energy Cost in Real-time Operations of Water Distribution Systems using Economic Model Predictive Control

Author

Wang, Ye, Yok, Kevin Too, Wu, Wenyan, Simpson, Angus R., Weyer, Erik, and Manzie, Chris

Subjects
Electrical Engineering and Systems Science - Systems and Control
Abstract

Optimizing pump operations is a challenging task for real-time management of water distribution systems (WDSs). With suitable pump scheduling, pumping costs can be significantly reduced. In this research, a novel economic model predictive control (EMPC) framework for real-time management of WDSs is proposed. Optimal pump operations are selected based on predicted system behavior over a receding time horizon with the aim to minimize the total pumping energy cost. Time-varying electricity tariffs are considered while all the required water demands are satisfied. The novelty of this framework is to choose the number of pumps to operate in each pump station as decision variables in order to optimize the total pumping energy costs. By using integer programming, the proposed EMPC is applied to a benchmark case study, the Richmond Pruned network. The simulation with an EPANET hydraulic simulator is implemented. Moreover, a comparison of the results obtained using the proposed EMPC with those obtained using trigger-level control demonstrates significant economic benefits of the proposed EMPC.

Published
2020
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34. Using Feature Interaction for Mining Learners’ Hidden Information in MOOC Dropout Prediction

Author

Pan, Tingfeng, Feng, Guang, Liu, Xin, Wu, Wenyan, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Frasson, Claude, editor, Mylonas, Phivos, editor, and Troussas, Christos, editor

Published
2023
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44. Proper disconnection of graphs

Author

Bai, Xuqing, Chen, You, Ji, Meng, Li, Xueliang, Weng, Yindi, and Wu, Wenyan

Subjects
Mathematics - Combinatorics, 05C15, 05C40, 05C75
Abstract

For an edge-colored graph $G$, a set $F$ of edges of $G$ is called a \emph{proper cut} if $F$ is an edge-cut of $G$ and any pair of adjacent edges in $F$ are assigned by different colors. An edge-colored graph is \emph{proper disconnected} if for each pair of distinct vertices of $G$ there exists a proper edge-cut separating them. For a connected graph $G$, the \emph{proper disconnection number} of $G$, denoted by $pd(G)$, is the minimum number of colors that are needed in order to make $G$ proper disconnected. In this paper, we first give the exact values of the proper disconnection numbers for some special families of graphs. Next, we obtain a sharp upper bound of $pd(G)$ for a connected graph $G$ of order $n$, i.e, $pd(G)\leq \min\{ \chi'(G)-1, \left \lceil \frac{n}{2} \right \rceil\}$. Finally, we show that for given integers $k$ and $n$, the minimum size of a connected graph $G$ of order $n$ with $pd(G)=k$ is $n-1$ for $k=1$ and $n+2k-4$ for $2\leq k\leq \lceil\frac{n}{2}\rceil$., Comment: 14 pages

Published
2019

48. Facial Landmarks Based Region-Level Data Augmentation for Gaze Estimation

Author

Yang, Zhuo, Ren, Luqian, Zhu, Jian, Wu, Wenyan, Wang, Rui, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Magnenat-Thalmann, Nadia, editor, Zhang, Jian, editor, Kim, Jinman, editor, Papagiannakis, George, editor, Sheng, Bin, editor, Thalmann, Daniel, editor, and Gavrilova, Marina, editor

Published
2022
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49. Enhanced Discriminant Local Direction Pattern Learning for Robust Palmprint Identification

Author

Ma, Siyuan, Hu, Qintai, Zhao, Shuping, Jiang, Lin, Wu, Wenyan, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Shen, Hong, editor, Sang, Yingpeng, editor, Zhang, Yong, editor, Xiao, Nong, editor, Arabnia, Hamid R., editor, Fox, Geoffrey, editor, Gupta, Ajay, editor, and Malek, Manu, editor

Published
2022
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