Article
Computer Science, Interdisciplinary Applications
Bhushan Pawar, Bhavana Bhadriraju, Faisal Khan, Joseph Sang-II Kwon, Qingsheng Wang
Summary: Ensuring resilience in process systems is crucial for safe and sustainable operations. Fault prognosis predicts the system's behavior after a fault occurs and helps determine intervention strategies for restoring normal operating conditions. An adaptable modeling technique called operable adaptive sparse identification of system is used for fault prognosis in the proposed framework. The system's absorption, adaptation, and recovery performances are evaluated based on a resilience metric to model the efficacy of different intervention strategies. A case study on a batch reactor in thermal runaway condition is conducted to demonstrate the framework's applicability.
COMPUTERS & CHEMICAL ENGINEERING
(2023)
Article
Automation & Control Systems
Bhavana Bhadriraju, Joseph Sang-Il Kwon, Faisal Khan
Summary: With the integration of OASIS, risk assessment, and contribution plots, the 'OASIS-P' framework can provide early fault prediction by adapting to initial fault symptoms and isolating faulty variables using contribution plots. This proactive monitoring approach is demonstrated in a case study of a reactor-separator system for fault prognosis.
JOURNAL OF PROCESS CONTROL
(2021)
Article
Engineering, Chemical
Fahim Abdullah, Panagiotis D. Christofides
Summary: This study presents a sparse identification-based model predictive control framework that incorporates online updates of the sparse-identified model to consider nonlinear dynamics and model uncertainty in process systems. The method involves obtaining a nonlinear first-order ordinary differential equation model using sparse identification for nonlinear dynamics (SINDy), which is integrated into Lyapunov-based MPC (LMPC) and Lyapunov-based economic MPC (LEMPC) for steady-state operation and optimal economic performance. An online model update scheme is proposed to improve prediction accuracy, utilizing prediction errors and process data. The proposed methodology is demonstrated to enhance dynamic performance and ensure closed-loop stability and optimality in a chemical process example.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Electrical & Electronic
Huaiyuan Wang, Qingyin Wang
Summary: This study proposes an improved cost-sensitive assignment method based on fault severity for accurately assessing transient stability of power systems and adaptively adjusting the cost coefficients of misclassified samples during model training to improve assessment rules.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2022)
Article
Chemistry, Analytical
Carla Terron-Santiago, Javier Martinez-Roman, Ruben Puche-Panadero, Angel Sapena-Bano
Summary: This paper introduces a method using sparse identification techniques and trigonometric interpolation polynomial for computing IM model parameters to address large computing power and memory resources requirements. The proposed model maintains accuracy similar to a FEM model, which could contribute to the development and testing of condition-monitoring systems.
Article
Engineering, Multidisciplinary
Jianyu Zhang, Guofeng Wang
Summary: An improved compressed sensing algorithm is presented in this paper, which effectively extracts weak fault features mixed in background noise through adaptive sparse representation and improved reconstruction scheme, improving reconstruction accuracy and calculation efficiency simultaneously.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Aerospace
Junlin LI, Huaqing WANG, Liuyang SONG
Summary: Sparse signal is a type of matrix that simplifies signals and carries fault information, which is crucial for equipment fault diagnosis in the aviation field. This study utilizes an improved dual-channel TQWT method to extract self-adaptive atoms for dictionary construction, resulting in better signal adaptability and fault feature extraction accuracy through the OMP algorithm.
CHINESE JOURNAL OF AERONAUTICS
(2021)
Article
Engineering, Multidisciplinary
Shen Tan, Qiao XueChun, Dong YunLong, Wang YuRan, Zhang Wei, Yuan Ye
Summary: Derivation of control equations from data is crucial in various scientific and engineering fields. This paper proposes a data-driven modeling and control strategy using an enhanced online sparse Bayesian learning (OSBL) algorithm and a model reference adaptive control method. The strategy extracts an accurate mechanistic model from measured data using sparse Bayesian approach and identifies unmodeled parameters through a deep neural network. The effectiveness of the proposed method is demonstrated on an industrial robot.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Weijun Li, Yuxiao Gao, Ang Li, Xinyong Zhang, Jianlai Gu, Jintong Liu
Summary: This study introduces a novel method called SSP-AA for link prediction, which generates sparse subgraphs and utilizes GraphSAGE for prediction to reduce computation and time costs. It addresses key issues in GraphSAGE by integrating an adaptive attention mechanism and a jumping knowledge module, improving its ability to capture node relationships and select appropriate representation depth.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Geological
Deping Guo, Hemao Chen, Libin Tang, Zhixiong Chen, Pijush Samui
Summary: In this study, a multivariate adaptive regression splines (MARS) model and a novel deep forest algorithm were used to predict and classify rockburst intensity with 344 worldwide rockburst cases. The t-distributed stochastic neighbor embedding method (t-SNE) was utilized for visualization and dimensionality reduction, and the Gaussian mixture model was employed to determine rockburst intensity. The study showed that the proposed models have the capability to assess and forecast rockburst risk, with the most important features being sigma(theta) and sigma(c).
Article
Engineering, Multidisciplinary
Yuanhang Sun, Jianbo Yu
Summary: This paper proposes a novel fault feature extraction method, adaptive adjacent signal difference lasso (AdaASDL), based on a new sparse representation for bearing fault diagnosis. AdaASDL model enhances the sparsity of signal amplitude and adjacent signal difference through sparse regularization terms, and the regularization parameter is adaptively set using a weighted method. Compared with other state-of-the-art methods, AdaASDL demonstrates better denoising performance and superiority in bearing fault diagnosis.
Article
Engineering, Mechanical
Renhe Yao, Hongkai Jiang, Xingqiu Li, Jiping Cao
Summary: In this paper, an adaptive period matching enhanced sparse representation (APMESR) algorithm is proposed to effectively extract incipient bearing fault features. The algorithm utilizes a novel methodology for estimating the period of faulty impulses and employs maximal overlap discrete wavelet packet transform for noise reduction and highlighting periodic impulse signatures. Experimental results demonstrate the superiority of APMESR in comparison to other advanced methods.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Energy & Fuels
Jie Zhao, Huaixun Zhang, Hongliang Zou, Jianguo Pan, Chengshi Zeng, Siyi Xiao, Jun Wang
Summary: This study proposes a method based on adaptive relevance vector machine (ARVM) to predict the fault probability of transmission line icing and achieve early warning. By optimizing model parameters and correcting prediction results, the proposed method can improve the accuracy of icing prediction and provide assistance for anti-icing and mitigation work in the electric power department.
Article
Engineering, Environmental
Jiaxin Zhang, Yiyang Dai, Zemin Feng, Lichun Dong
Summary: This paper proposes an enhanced temporal algorithm-coupled optimized adaptive sparse PCA (ETA-OASPCA) methodology to improve the conventional PCA method by introducing temporal state computation and dynamic adaptive sparsity. The ETA is used to extract state transitions and label possible abnormal states, while the dynamic adaptive sparsity in PCA enhances the interpretability of the model. The proposed method achieves high fault detection rate, low false alarm rate, and short latency in the Eastman Tennessee process.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Automation & Control Systems
Weiwei Qian, Shunming Li, Jiantao Lu
Summary: This study proposes an algorithm called adaptive nearest neighbor reconstruction (ANNR) that combines parameter-based and case-based fault diagnosis methods. It offers sparse and robust feature extraction and enables adaptive nearest neighbor location. Experimental results demonstrate its effectiveness.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2022)
Article
Computer Science, Interdisciplinary Applications
Nohan Joemon, Melpakkam Pradeep, Lokesh K. Rajulapati, Raghunathan Rengaswamy
Summary: This paper introduces a smoothing-based approach for discovering partial differential equations from noisy measurements. The method is data-driven and improves performance by incorporating first principles knowledge. The effectiveness of the algorithm is demonstrated in a real system using a new benchmark metric.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Zhibin Lu, Yimeng Li, Chang He, Jingzheng Ren, Haoshui Yu, Bingjian Zhang, Qinglin Chen
Summary: This study proposes a new inverse design method using a physics-informed neural network to identify optimal heat sink designs. A hybrid PINN accurately approximates the governing equations of heat transfer processes, and a surrogate model is constructed for integration with optimization algorithms. The proposed method accelerates the search for Pareto-optimal designs and reduces search time. Comparing different scenarios facilitates real-time observation of multiphysics field changes, improving understanding of optimal designs.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Luca Gasparini, Antonio Benedetti, Giulia Marchese, Connor Gallagher, Pierantonio Facco, Massimiliano Barolo
Summary: In this paper, a method for batch process monitoring with limited historical data is investigated. The methodology utilizes machine learning algorithms to generate virtual data and combines it with real data to build a process monitoring model. Automatic procedures are developed to optimize parameters, and indicators and metrics are proposed to assist virtual data generation activities.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Julia Jimenez-Romero, Adisa Azapagic, Robin Smith
Summary: Energy transition is a significant and complex challenge for the industry, and developing cost-effective solutions for synthesizing utility systems is crucial. The research combines mathematical formulation with realistic configurations and conditions to represent utility systems and provides a basis for synthesizing energy-efficient utility systems for the future.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Samuel Adeyemo, Debangsu Bhattacharyya
Summary: This work develops algorithms for estimating sparse interpretable data-driven models. The algorithms select the optimal basis functions and estimate the model parameters using Bayesian inferencing. The algorithms estimate the noise characteristics and model parameters simultaneously. The algorithms also exploit prior analysis and special properties for efficient pruning, and use a modified Akaike information criterion for model selection.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Abbasali Jafari-Nodoushan, Mohammad Hossein Dehghani Sadrabadi, Maryam Nili, Ahmad Makui, Rouzbeh Ghousi
Summary: This study presents a three-objective model to design a forward supply chain network considering interrelated operational and disruptive risks. Several strategies are implemented to cope with these risks, and a joint pricing strategy is used to enhance the profitability of the supply chain. The results show that managing risks and uncertainties simultaneously can improve sustainability goals and reduce associated costs.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
T. A. Espaas, V. S. Vassiliadis
Summary: This paper extends the concept of higher-order search directions in interior point methods to convex nonlinear programming. It provides the mathematical framework for computing higher-order derivatives and highlights simplified computation for special cases. The paper also introduces a dimensional lifting procedure for transforming general nonlinear problems into more efficient forms and describes the algorithmic development required to employ these higher-order search directions.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
David A. Linan, Gabriel Contreras-Zarazua, Eduardo Sanhez-Ramirez, Juan Gabriel Segovia-Hernandez, Luis A. Ricardez-Sandoval
Summary: This study proposes a parallel hybrid algorithm for optimal design of process flowsheets, which combines stochastic method with deterministic algorithm to achieve faster and improved convergence.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Xiaoyong Lin, Zihui Li, Yongming Han, Zhiwei Chen, Zhiqiang Geng
Summary: A novel GAT-LSTM model is proposed for the production prediction and energy structure optimization of propylene production processes. It outperforms other models and can provide the optimal raw material scheme for actual production processes.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Prodromos Daoutidis, Jay H. Lee, Srinivas Rangarajan, Leo Chiang, Bhushan Gopaluni, Artur M. Schweidtmann, Iiro Harjunkoski, Mehmet Mercangoz, Ali Mesbah, Fani Boukouvala, Fernando Lima, Antonio del Rio Chanona, Christos Georgakis
Summary: This paper provides a concise perspective on the potential of machine learning in the PSE domain, based on discussions and talks during the FIPSE 5 conference. It highlights the need for domain-specific techniques in molecular/material design, data analytics, optimization, and control.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Hesam Hassanpour, Prashant Mhaskar, Brandon Corbett
Summary: This work addresses the problem of designing an offset-free implementable reinforcement learning (RL) controller for nonlinear processes. A pre-training strategy is proposed to provide a secure platform for online implementations of the RL controller. The efficacy of the proposed approach is demonstrated through simulations on a chemical reactor example.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Hunggi Lee, Donghyeon Lee, Jaewook Lee, Dongil Shin
Summary: This study introduces an innovative framework that utilizes a limited number of sensors to detect chemical leaks early, mitigating the risk of major industrial disasters, and providing faster and higher-resolution results.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Sibel Uygun Batgi, Ibrahim Dincer
Summary: This study examines the environmental impacts of three alternative hydrogen-generating processes and determines the best environmentally friendly option for hydrogen production by comparing different impact categories. The results show that the solar-based HyS cycle options perform the best in terms of global warming potential, abiotic depletion, acidification potential, ozone layer depletion, and human toxicity potential.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
LaGrande Gunnell, Bethany Nicholson, John D. Hedengren
Summary: A review of current trends in scientific computing shows a shift towards open-source and higher-level programming languages like Python, with increasing career opportunities in the next decade. Open-source modeling tools contribute to innovation in equation-based and data-driven applications, and the integration of data-driven and principles-based tools is emerging. New compute hardware, productivity software, and training resources have the potential to significantly accelerate progress, but long-term support mechanisms are still necessary.
COMPUTERS & CHEMICAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Daniel Cristiu, Federico d'Amore, Fabrizio Bezzo
Summary: This study presents a multi-objective mixed integer linear programming framework to optimize the supply chain for mixed plastic waste in Northern Italy. Results offer quantitative insights into economic and environmental performance, balancing trade-offs between maximizing gross profit and minimizing greenhouse gas emissions.
COMPUTERS & CHEMICAL ENGINEERING
(2024)