检索结果-内蒙古大学图书馆

Franklin Open 2025年 10卷

作者： Yfantis, Vassilios Wagner, Achim Ruskowski, Martin Chair of Machine Tools and Control Systems Department of Mechanical and Process Engineering RPTU Kaiserslautern-Landau Gottlieb-Daimler-Straße 42 Kaiserslautern 67663 Germany Innovative Factory Systems German Research Center for Artificial Intelligence Trippstadter Str. 122 Kaiserslautern 67663 Germany

The use of distributed optimization in machine learning can be motivated either by the resulting preservation of privacy or the increase in computational efficiency. On the one hand, training data might be stored across multiple devices. Training a global model within a network where each node only has access to its confidential data requires the use of distributed algorithms. Even if the data is not confidential, sharing it might be prohibitive due to bandwidth limitations. On the other hand, the ever-increasing amount of available data leads to large-scale machine learning problems. By splitting the training process across multiple nodes its efficiency can be significantly increased. This paper aims to demonstrate how dual decomposition can be applied for distributed training of K-means clustering problems. After an overview of distributed and federated machine learning, the mixed-integer quadratically constrained programming-based formulation of the K-means clustering training problem is presented. The training can be performed in a distributed manner by splitting the data across different nodes and linking these nodes through consensus constraints. Finally, the performance of the subgradient method, the bundle trust method, and the quasi-Newton dual ascent algorithm are evaluated on a set of benchmark problems. The main benefit stemming from the formulation of the clustering problem as a mixed-integer program and from the use of dual decomposition within a federated learning framework, apart from the preservation of privacy, is the computation of a lower bound of the objective of the overall clustering problem. In this way, the worst-case distance of any found solution to the global optimum can be easily assessed. While the mixed-integer programming-based formulation of the clustering problems suffers from weak integer relaxations, the presented approach can potentially be used to enable an efficient solution in the future, both in a central and distributed sett

关键词： Clustering Distributed optimization Dual decomposition Federated learning

来源：评论

学校读者我要写书评

暂无评论

Excellent Defluorination Performance in Nico-Layered Metal Oxide Based Asymmetric Flow Capacitive Deionization System

SSRN

引用

SSRN 2025年

作者： Hu, Dongyang Liu, Yongqi Dai, Zhongde Sabale, Sandip Kim, Deok-Kee Li, Yiming Xiong, Jian Zheng, Yu Li, Yuping Zhou, Qiongzhi Shen, Jian College of Environment and Resources Xiangtan University Xiangtan411105 China Hunan Brunp Recycling Technology Co. Ltd. Changsha410604 China School of Carbon Neutrality Future Technology Sichuan University Chengdu610065 China Department of Semiconductor Systems Engineering Sejong University Seoul05006 Korea Republic of School of Ecology and Environment Tibet University Lhasa850000 China Beijing Engineering Research Center of Process Pollution Control Division of Environment Technology and Engineering Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

The high concentration of fluoride (F-) ions in contaminated water has become an urgent challenge for public health and environmental safety. In this contribution, we adopted asymmetric flow electrode capacitive deionization (FCDI) technique to remove F- ions, selecting NiCo layered metal oxide/carbon black (NiCo-LMO/CB) and Prussian blue analogs (cobalt hexacyanocobaltate, CoHCC) as the flow anode and cathode materials, respectively. As expected, the NiCo-LMO/CB flow electrode demonstrated excellent performance in terms of F- removal efficiency (68.54%), F- adsorption capacity (13.78 mg/g), and energy consumption (5.39 J/mg) when treating 1000 mg/L NaF solution under 1.2 V cell voltage. Combining electrochemical characterizations with structural analysis, such excellent defluorination performance of NiCo-LMO/CB can be ascribed to both electrostatic attraction and flexible ions intercalation. Hopefully, this work provides new ideas for defluorination of high concentration fluoridated wastewater via adopting asymmetric FCDI. © 2025, The Authors. All rights reserved.

关键词： Deionized water

来源：评论

学校读者我要写书评

暂无评论

Intelligent systems in process engineering: A review

引用

COMPUTERS & CHEMICAL engineering 1996年第6-7期20卷 743-791页

作者： Stephanopoulos, G Han, C Laboratory for Intelligent Systems in Process Engineering Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 U.S.A.

The purpose of this review is three-fold. First, sketch the directions that research and industrial applications of ''intelligent systems'' have taken in several areas of process engineering. Second, identify the emerging trends in each area, as well as the common threads that cut across several domains of inquiry. Third, stipulate research and development themes of significant importance for the future evolution of ''intelligent systems'' in process engineering. The paper covers the following seven areas: diagnosis of process operations;monitoring and analysis of process trends;intelligent control;heuristics and logic in planning and scheduling of process operations;modeling languages, simulation, and reasoning;intelligence in scientific computing;knowledge-based engineering design. Certain trends seem to be common and will (in all likelihood) characterize the nature of the future deployment of ''intelligent systems''. These trends are: (1) Specialization to narrowly defined classes of problems. (2) Integration of multiple knowledge representations, so that all of relevant knowledge is captured and utilized. (3) Integration of processing methodologies, which tends to blur the past sharp distinctions between AI-based techniques and those from operations research, systems and control theory, probability and statistics. (4) Rapidly expanding range of industrial applications with significant increase in the scope of engineering tasks and size of problems.

关键词： Chemical engineering

来源：评论

学校读者我要写书评

暂无评论

MODEL LA - A MODELING LANGUAGE FOR process engineering .2. MULTIFACETED MODELING OF processING systems

引用

COMPUTERS & CHEMICAL engineering 1990年第8期14卷 847-869页

作者： STEPHANOPOULOS, G HENNING, G LEONE, H Laboratory for Intelligent Systems in Process Engineering Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 U.S.A.

Multifaceted (multiview, multicontext, multilevel) modeling of processing systems is a central requirement for further automation of process engineering tasks. This paper describes how the formal framework of ***., established in Part I, is being used to construct multifaceted models of processing systems. More specifically, it shows how ***. (a) can access multiple views of a model; (b) generate contextual models; and (c) establish consistency among multiple, concurrent models developed at different levels of abstraction. The procedures carrying out these operations are described and a series of illustrations is used to clarify the various concepts.

关键词： Chemical Operations

来源：评论

学校读者我要写书评

暂无评论

Event-Based Sampling Architecture and Optimization for Industrial Internet of Things

Event-Based Sampling Architecture and Optimization for Indus...

引用

IEEE/SEMI Conference and Workshop on Advanced Semiconductor Manufacturing

作者： Tejas Thosani Andres Prado Espinoza Stephanas Lynch Nick Krumme Chris Schoeb Aarathi Vadapalli Joaquin Avila Brian Silkey Process Control Systems Micron Technology Inc. Manassas USA Equipment Engineering Micron Technology Inc. Manassas USA Wets Equipment Engineering Micron Technology Inc. Manassas USA Fab Support Engineering Micron Technology Inc. Manassas USA CVD Equipment Engineering Micron Technology Inc. Manassas USA PVD Process Engineering Micron Technology Inc. Manassas USA PVD Equipment Engineering Micron Technology Inc. Manassas USA

ISBN: (数字)9798331531850

ISBN: (纸本)9798331531867

The proposed paper will present a standardized solution for Industrial IoT, to employ event-based sampling for detecting equipment faults and preventing product impact in large-scale manufacturing. This is important because IoT sensors can generate dense datasets with wide distributions, attributed to varying operating conditions in the fab; sensor measurements summarized without the appropriate context makes it difficult to correlate IoT data with fab processes. To improve our detection rate and minimize false alarms, it is critical to intelligently sample this data using contextual events before applying tighter control. We implemented a standardized solution for event-based sampling which is easily extensible to any Industrial IoT scenario, since it was designed and optimized using industry best practices and evaluated against real fab use-cases. It significantly reduced server CPU consumption and prevented message loss / connection timeouts with other manufacturing systems. Improving our signal-to-noise-ratio (SNR) based on context consequentially helped with tighter process-control, enhanced fab operations, and transformed our detection from reactive to predictive / preventive.

关键词： Event detection Sensor phenomena and characterization Semiconductor device manufacture Real-time systems Telemetry Optimization Intelligent sensors Standards Industrial Internet of Things Signal to noise ratio

来源：评论

学校读者我要写书评

暂无评论

process control Principles for Scalable Electrolysis systems 28

Process Control Principles for Scalable Electrolysis Systems

引用

28th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2023

作者： Lorenz, Julius Klose, Anselm Lange, Hannes Kock, Tobias Urbas, Leon TUD Dresden University of Technology Process Control Systems Dresden Germany TUD Dresden University of Technology Process to Order Lab Dresden Germany TUD Dresden University of Technology Process Systems Engineering Group Dresden Germany

ISBN: (纸本)9798350339918

The scale up of hydrogen production to large scale production systems demands a structured approach to control these systems. With suitable control principles, optimization for operation can be achieved whilst maintaining flexibility. In this paper, existing control strategies are analyzed and compared for large scale electrolysis systems. It is argued, how modularization can enable the optimal distribution of set-points and enables the systems for capacity extension. An initial implementation in MATLAB is presented, showing the feasibility of the proposed power distribution concept. © 2023 IEEE.

关键词： process control

来源：评论

学校读者我要写书评

暂无评论

Flexible process control for Scalable Electrolysis systems

Flexible Process Control for Scalable Electrolysis Systems

引用

2023 IEEE International Conference on Electrical, Computer and Energy Technologies, ICECET 2023

作者： Lorenz, Julius Klose, Anselm Lange, Hannes Kock, Tobias Urbas, Leon Process Control Systems Tud Dresden University of Technology Dresden Germany Process to Order Lab Tud Dresden University of Technology Dresden Germany Process Systems Engineering Group Tud Dresden University of Technology Dresden Germany

ISBN: (纸本)9798350327816

Large-scale water electrolysis systems are built from a multitude of stack units. These stack units have to be controlled during operation. The question arises how process control of the system can be designed in that way, that scalable, extendable but also optimal operation of the stack units becomes possible. To achieve this goal, existing process control strategies from literature are analyzed. The requirements resulting from the inherent numbering up of stack units are described and an approach for an adaptable optimized process control strategy considering the system properties is proposed. The proposed process control strategy is implemented in a modeled electrolysis system and evaluated regarding the stated criteria. The results could show, that the inherent modularization of electrolysis systems can be used in advantage for a scalable operation. © 2023 IEEE.

关键词： Modular Automation process control Water Electrolysis

来源：评论

学校读者我要写书评

暂无评论

APPLICATION OF NEURAL NETWORKS TO WATER AND WASTE-WATER TREATMENT-PLANT OPERATION

引用

ISA TRANSACTIONS 1992年第1期31卷 25-33页

作者： BOGER, Z Intelligent Process Control Systems Israel

The application of artificial intelligence techniques to the operation of water and wastewater treatment plants in recent years is reviewed. The expert system approach is the most prevalent, but difficulties in acquiring and representing knowledge of the complex phenomena in these plants have led to the search for additional approaches. Fuzzy logic and statistical process control are used for formulating expert rules from plant historical operating data, but artificial neural networks, which can learn from examples, are believed to be a better solution for this task and for many additional problems encountered in the operation of the plants. Basic concepts of neural network organization and training are given as well as recent advances in learning speed improvement that have paved the way for easy application of this technique in large industrial plants. Current and future utilization of neural networks in areas of water and wastewater plant modelling, expert rule extraction, fault detection and diagnosis, plant and instrument monitoring, dynamic forecasting, and robust control are discussed. Examples are given from the application of neural networks to the operation of the Shafdan wastewater treatment plant in Israel. Some limitations of the neural network approach, together with ways of overcoming these limitations, are described. The overall conclusion is that we will soon see neural network techniques applied to achieve better plant operation.

关键词： Water Treatment

来源：评论

学校读者我要写书评

暂无评论

Internal pricing in integrated energy system design

引用

Frontiers in Energy Research 2025年 13卷

作者： Granacher, Julia Schnidrig, Jonas Chuat, Arthur Lepour, Dorsan Terrier, Cédric Castro-Amoedo, Rafael Marechal, Francois M. A. Industrial Process and Energy Systems Engineering group École Polytechnique Fédérale de Lausanne Sion Switzerland CIRAIG Institue of Energy and Environment University of Applied Sciences Western Switzerland Sion Switzerland

Environmentally sustainable and economically viable process and energy systems are imperative to a successful energy transition. Often, design configurations are derived from a global perspective, in which the individual needs and interests of actors within the system are overlooked. This work proposes an approach for designing a system considering its entire scope and acknowledging the individual actors within the system. System solutions are generated from the perspective of a universal decision-maker who is aware of the whole system, and the obtained solution space is analyzed regarding implications for the individual actors. Thereby, prices of internal exchanges between actors that would allow for the realization of the optimal integrated system solution while granting each actor their economic objectives are derived. The approach is demonstrated in three distinct case studies varying in size: a bio-based industrial site, a renewable energy community, and a national energy system. All case studies yield system configurations allowing the actors to profit from economic benefits emerging from synergies from internal cooperation. Further research must delve into diverse system settings and actor paradigms to enhance the robustness and applicability of the derived insights. Copyright © 2025 Granacher, Schnidrig, Chuat, Lepour, Terrier, Castro-Amoedo and Maréchal.

关键词： Integrated circuit design

来源：评论

学校读者我要写书评

暂无评论

Stealthy Attacks on Sampled-Data control and Encryption-Based Countermeasures

引用

IEEE Transactions on Automatic control 2025年

作者： Shang, Jun Li, Yuzhe Chen, Tongwen Tongji University Department of Control Science and Engineering Shanghai Institute of Intelligent Science and Technology National Key Laboratory of Autonomous Intelligent Unmanned Systems Frontiers Science Center for Intelligent Autonomous Systems Shanghai200092 China Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Shenyang110004 China University of Alberta Department of Electrical and Computer Engineering EdmontonABT6G 1H9 Canada

This paper investigates stealthy attacks on sampled-data control systems, where a continuous process is sampled periodically, and the resultant discrete output and control signals are transmitted through dual channels in wireless communication networks. Acknowledging the vulnerability of these transmitted data to cyber threats, we analyze two types of stealthy attacks that compromise either one or both channels. We explicitly present the necessary and sufficient conditions for the existence of stealthy single-channel attacks. To mitigate these security risks, we implement encryption-based countermeasures, including linear time-invariant and periodic encryption methods. We detail sufficient conditions under which these encryption strategies effectively thwart single- and dual-channel stealthy attacks. The effectiveness of these approaches and the theoretical findings are demonstrated through numerical simulations. © 1963-2012 IEEE.

关键词： Cyber attacks

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：