检索结果-内蒙古大学图书馆

Periodic-Enhanced Informer Model for Short-Term Wind Power Forecasting Using SCADA Data

IEEE Transactions on Sustainable Energy 2025年

作者： Liu, Zhao-Hua Li, Long-Wei Wei, Hua-Liang Li, Ming Lv, Ming-Yang Zhang, Ying-Jie Hunan University of Science and Technology School of Information and Electrical Engineering Xiangtan411201 China University of Sheffield Department of Automatic Control and Systems Engineering SheffieldS1 3JD United Kingdom Hunan University College of Computer Science and Electronic Engineering Changsha410082 China

Supervisory control and Data Acquisition (SCADA) systems can collect abundant information about wind farm operation and environment. To better make use of SCADA data, a periodic-enhanced informer model for short-term wind power forecasting using scada data is proposed. Firstly, to effectively filter out noise in SCADA data, a v-p curve-based method is adopted by incorporating a quartile approach to remove sparse outliers;a density-based spatial clustering of applications with noise (DBSCAN) algorithm is then employed to eliminate stacked outliers from the power curve. Secondly, a multi-feature input set selection method based on Maximization Information Coefficient is introduced to make better use of the SCADA system data by reducing the number of features. Thirdly, a Temporal Convolutional Network (TCN) is designed to extract the scalar projection of the input set, followed by fusing the local time stamp and global time stamp to build the periodic information enhanced prediction model embedding layer. Subsequently, the enhanced input set is fed into an informer model to predict future wind power. Finally, considering the multiple temporal scales structure characteristics present in the dataset, a multi-scale deep fusion module is established in the informer model to deeply integrate the features of different scales. It can simultaneously avoid the resource waste and overfitting problems caused by increasing the network depth. The experimental results, which are obtained from several deep learning methods on real SCADA data, demonstrate that the suggested approach has good predictive capability. © 2010-2012 IEEE.

关键词： Wind forecasting

来源：评论

学校读者我要写书评

暂无评论

Efficient Coordination and Synchronization of Multi-Robot systems Under Recurring Linear Temporal Logic

arXiv

引用

arXiv 2025年

作者： Peron, Davide Fernandez-Ayala, Victor Nan Vlahakis, Eleftherios E. Dimarogonas, Dimos V. Department of Information Engineering University of Padova Padova35122 Italy Division of Decision and Control Systems School of Electrical Engineering and Computer Science KTH Royal Institute of Technology Stockholm10044 Sweden

We consider multi-robot systems under recurring tasks formalized as linear temporal logic (LTL) specifications. To solve the planning problem efficiently, we propose a bottom-up approach combining offline plan synthesis with online coordination, dynamically adjusting plans via real-time communication. To address action delays, we introduce a synchronization mechanism ensuring coordinated task execution, leading to a multi-agent coordination and synchronization framework that is adaptable to a wide range of multi-robot applications. The software package is developed in Python and ROS2 for broad deployment. We validate our findings through lab experiments involving nine robots showing enhanced adaptability compared to previous methods. Additionally, we conduct simulations with up to ninety agents to demonstrate the reduced computational complexity and the scalability features of our work. © 2025, CC BY.

关键词： Multipurpose robots

来源：评论

学校读者我要写书评

暂无评论

Adaptive FRIT-based Recursive Robust controller Design Using Forgetting Factors

arXiv

引用

arXiv 2024年

作者： Tsuruhara, Satoshi Ito, Kazuhisa Graduate School of Engineering and Science Functional Control Systems Shibaura Institute of Technology 307 Fukasaku Minuma Saitama3378570 Japan Japan Society for the Promotion of Science Tokyo1020083 Japan Department of Machinery and Control Systems Shibaura Institute of Technology 307 Fukasaku Minuma Saitama3378570 Japan

Adaptive FRIT (A-FRIT) with exponential forgetting (EF) has been proposed for time-varying systems to improve the data dependence of FRIT, which is a direct data-driven tuning method. However, the EF-based method is not a reliable controller because it can cause significant degradation of the control performance and instability unless the persistent excitation (PE) condition is satisfied. To solve this problem, we propose a new A-FRIT method based on directional forgetting (DF) and exponential resetting that can forget old data without instability regardless of the PE condition. To confirm the effectiveness of the proposed method, we applied it to artificial muscle control with strong asymmetric hysteresis characteristics and evaluated its robust performance against load changes during the experiment. The experimental results show that the proposed method based on DF achieves high control performance and is robust against changes in the characteristics and/or target trajectory. The proposed method is also practical because it does not require system identification, model structure, or prior experimentation. © 2024, CC BY-NC-ND.

关键词： Time varying systems

来源：评论

学校读者我要写书评

暂无评论

Observation of transverse Thomson effect

arXiv

引用

arXiv 2025年

作者： Takahagi, Atsushi Hirai, Takamasa Alasli, Abdulkareem Park, Sang Jun Nagano, Hosei Uchida, Ken-Ichi Department of Mechanical Systems Engineering Nagoya University Nagoya464-8601 Japan National Institute for Materials Science Tsukuba305-0047 Japan Department of Advanced Materials Science Graduate School of Frontier Sciences The University of Tokyo Kashiwa277-8561 Japan

The thermoelectric Thomson effect, predicted in the 1850s by William Thomson, produces volumetric heating/cooling in a conductor due to the concerted action of the Seebeck and Peltier effects. Recently, transverse thermoelectrics studies on the Nernst and Ettingshausen effects have progressed rapidly to enable versatile thermal management technologies and to explore topological transport properties. However, a transverse Thomson effect, arising from the concerted action of the Nernst and Ettingshausen effects, has not yet been observed. Here, we report the observation of the transverse Thomson effect in a conductor. We observed volumetric heating/cooling in a semimetallic Bi88Sb12 alloy induced by a charge current, temperature gradient, and magnetic field applied orthogonally to each other using thermoelectric imaging techniques. We found that the heating/cooling can be switched by the field direction. Our experiments and analyses reveal the essential difference between the conventional and transverse Thomson effects;the former depends sorely on the temperature derivative of the Seebeck coefficient, while the latter depends not only on the temperature derivative of the Nernst coefficient but also on its magnitude. The observation of the transverse Thomson effect fills a missing piece in the history of thermoelectrics and provides a new principle for active thermal management technologies. Copyright © 2025, The Authors. All rights reserved.

关键词： Seebeck coefficient

来源：评论

学校读者我要写书评

暂无评论

Genetic Crossover Operator with Staged Crossover Strategy for the Capacitated Vehicle Routing Problem 17

Genetic Crossover Operator with Staged Crossover Strategy fo...

引用

17th IEEE International Conference on Computer Research and Development, ICCRD 2025

作者： Du, Hongyi Li, Jiacheng Li, Lei Hosei University Graduate School of Science and Engineering Tokyo184-8584 Japan Kanagawa University Department of Applied Systems and Mathematics Yokohama Japan Hosei University Faculty of Science and Engineering Tokyo184-8584 Japan

ISBN: (纸本)9798331531881

The Genetic Algorithm (GA) has been successfully applied to the Capacitated Vehicle Routing Problem (CVRP), a classic NP-hard combinatorial optimization problem. The complexity of CVRP renders exact methods nearly infeasible, necessitating heuristic and metaheuristic approaches. GA is a widely used metaheuristic approach for obtaining near-optimal solutions, with the crossover operator playing a critical role in the algorithm's optimization effectiveness and efficiency. Although the Sequential Constructive Crossover (SCX) is one of the most effective crossover operators, it has the drawback of easily getting trapped in local optima. Given the limited research on improvements to SCX, this paper addresses this gap by proposing a Staged Crossover Strategy that Staged Sequential Constructive Crossover (SSCX) from a new perspective. This strategy introduces new individuals to enhance diversity, aiming to overcome the limitations of SCX. Extensive experiments on VRP instances of varying scales demonstrate that the improved algorithm significantly enhances optimization performance for large-scale CVRP instances, achieving an average improvement of approximately 5-18%. © 2025 IEEE.

关键词： Genetic algorithms

来源：评论

学校读者我要写书评

暂无评论

Effect of quenching rate on microstructure formation in Al-Zn-Mg alloy sheet

引用

Keikinzoku/Journal of Japan Institute of Light Metals 2023年第12期73卷 616-621页

作者： Aisu, Yuki Ichitani, Koji Tanaka, Hiroki Saito, Genki Muto, Shunsuke Okajima, Toshihiro Research & Development Center Marketing & Technology Division UACJ Corporation 3-1-12 Chitose Minato-ku Aichi Nagoya-shi455-8670 Japan Department of Materials Physics Graduate School of Engineering Nagoya University Aichi Nagoya-shi Japan Advanced Measurement Technology Center Institute of Materials and Systems for Sustainability Nagoya University Aichi Nagoya-shi Japan Aichi Synchrotron Radiation Center Aichi Science & Technology Foundation Aichi Seto-shi Japan

A phenomenon that Al-6.0%Zn-0.75%Mg alloy sheets furnace-cooled after solution heat treatment had higher strength than water-quenched sheets under specific aging condition was reported. However, the strengthening mechanism related to furnace-cooling had been not clarified yet. In this research, replication test of the strengthening phenomenon of furnace-cooled sheets and the microstructural change during natural aging and artificial aging at 200°C after furnace-cooling after solution heat treatment was investigated by tensile tests, SAXS measurements, STEM observation and electrical conductivity measurement. The strengthen phenomenon of furnace-cooled sheets was reproduced. In as-furnace-cooled sheets, 2-5 nm clusters which induced lattice strain were observed in LAADF-STEM image apart from atomic number contrast in HAADF-STEM image. The clusters seemed to be generated during furnace cooling. The clusters seemed to cause suppression of reversion and promotion of age hardening in furnace-cooled material. © 2023 The Japan Institute of Light Metals.

关键词： Zinc alloys

来源：评论

学校读者我要写书评

暂无评论

Advances and challenges in developing cocatalysts for photocatalytic conversion of carbon dioxide to fuels

引用

Nano Research 2022年第12期15卷 10090-10109页

作者： Qian Wang Zhenhua Pan Graduate School of Engineering Nagoya UniversityFuro-choChikusa-kuNagoya464-8603Japan Institute for Advanced Research Nagoya UniversityFuro-choChikusa-kuNagoya464-8601Japan Department of Applied Chemistry Faculty of Science and TechnologyChuo University1-13-27 KasugaBunkyoTokyo112-8551Japan

The global adoption of efficient sustainable energy sources is a crucial step toward meeting energy demands while achieving carbon emission reduction *** energy has become a clean and cost-competitive alternative to traditional fossil fuels,but the intermittent nature of sunlight results in challenges associated with energy storage and *** carbon dioxide reduction intends to mimic natural photosynthesis for utilizing sunlight to chemically convert water and CO_(2) into *** this process,the solar energy is captured and stored in fuels,so-called solar fuels,for widespread on-demand *** solar fuel production systems are multi-component,comprising light-harvesting(photosensitizer)and catalytic(cocatalyst)*** are indispensable for photocatalytic CO_(2) reduction systems,which promote charge carrier separation and transport,reduce the reaction activation energy,and alter the reaction route,thereby enhancing the activity and selectivity of the photocatalytic *** review presents a comprehensive summary of the recent advancements in cocatalysts for photocatalytic CO_(2) reduction reaction(CO_(2)RR),with the purpose of providing new insights and guidance to the field with regard to research directions and best *** summarize how various cocatalysts including inorganic nanoparticles,metal complexes,enzymes,and bacteria can be combined with semiconductor photosensitizer for light-driven photocatalytic CO_(2)***-by-side comparisons reveal the strengths and limitations of each kind of cocatalysts and how lessons extracted from studying natural photosynthetic systems can be applied to investigations of artificial photosynthesis,presenting an outlook discussing possible future concepts for a more effective photocatalytic CO_(2) reduction process.

关键词： photocatalysis cocatalyst carbon dioxide reduction artificial photosynthesis solar fuel production

来源：评论

学校读者我要写书评

暂无评论

Multi-Objective Optimal control of Wastewater Treatment Processes Constrainted by Energy-Saving and Effluent Qualities 6

Multi-Objective Optimal Control of Wastewater Treatment Proc...

引用

6th International Conference on Robotics, control and Automation engineering, RCAE 2023

作者： Zhang, Jing Yan, Haoming Chen, Hongtian Xu, Shuiqing Liu, Yiqi School of Automation Science & Engineering South China University of Technology Key Laboratory of Autonomous Systems and Networked Control Ministry of Education Guangzhou510640 China Shanghai Jiao Tong University Department of Automation Shanghai200240 China College of Electrical Engineering and Automation Hefei University of Technology Hefei230009 China

ISBN: (纸本)9798350315301

Considering the high energy consumption problem in the wastewater treatment process, this paper proposes a multi-objective optimization control scheme based on NSGA-II algorithm. The proposed scheme can not only ensures meet effluent quality requirements but also can achieves energy cost savings. This method takes the aeration energy consumption and pumping energy consumption of the system as the optimization goal with the effluent water quality being the constraint condition. At the same time, the adaptive fuzzy PID controller is designed to ensure the control accuracy and stability of the controlled system. The results of simulation experiments validated in benchmark simulation platform, BSM1, show that, compared with PI control and single-objective optimization control, the proposed optimization scheme in this paper can achieve the desired quality of the effluent water withmore energy-saving. © 2023 IEEE.

关键词： Energy utilization

来源：评论

学校读者我要写书评

暂无评论

Implementation of Intuitive 3-Dimensional Manipulation for 3DCG Objects Using Monocular Camera

Implementation of Intuitive 3-Dimensional Manipulation for 3...

引用

International Symposium on Communications and Information Technologies (ISCIT)

作者： Hibiki Ito Hiroki Imamura Department of Information Systems Engineering Graduate School of Science and Technology Soka University (of Japan.) Tokyo Japan

The widespread use of smartphones has led to an increase in opportunities for manipulating 3-Dimensional-Computer-Graphics (3DCG) objects in Augmented Reality (AR) and Virtual Reality (VR) applications. However, these interactions usually require touch panel input, which can be difficult for users who lack prior experience. To address this issue, one possible solution is to use depth sensors to infer hand shapes from skeletal data and control 3DCG objects using gesture movements. Nevertheless, these sensors can be challenging to implement due to cost and other limitations. Thus, we will investigate the possibility of manipulating 3DCG objects using only a monocular camera based on gesture movements.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Development of A Virtual Aerial Display Considering Interaction with 3DCG Objects

Development of A Virtual Aerial Display Considering Interact...

引用

International Symposium on Communications and Information Technologies (ISCIT)

作者： Hideaki Saito Hiroki Imamura Department of Information Systems Engineering Graduate School of Science and Technology Soka University (of Japan.) Tokyo Japan

In recent years, aerial displays that enable users to experience three-dimensional images are attracting attention. The reason why they are attracting attention is that they are expected to be used in various fields, such as for meetings at workplaces for a long-term using stereoscopic images, which have not been realized so far, and for applications in advertising. Therefore, the purpose of this research is to create a system that allows a single user to actually move their head to view 3D objects projected on a PC, and to develop a system that allows interaction while viewing stereoscopic images via an aerial display.

关键词：

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：