检索结果-内蒙古大学图书馆

arXiv 2020年

作者： Liu, Yin-Bo Zeng, Ming Meng, Qing-Hao Institute of Robotics and Autonomous Systems Tianjin Key Laboratory of Process Measurement and Control School of Electrical and Information Engineering Tianjin University Tianjin300072 China

Unstructured road vanishing point (VP) detection is a challenging problem, especially in the field of autonomous driving. In this paper, we proposed a novel solution combining the convolutional neural network (CNN) and heatmap regression to detect unstructured road VP. The proposed algorithm firstly adopts a lightweight backbone, i.e., depthwise convolution modified HRNet, to extract hierarchical features of the unstructured road image. Then, three advanced strategies, i.e., multi-scale supervised learning, heatmap super-resolution, and coordinate regression techniques are utilized to achieve fast and high-precision unstructured road VP detection. The empirical results on Kong’s dataset show that our proposed approach enjoys the highest detection accuracy compared with state-of-the-art methods under various conditions in real-time, achieving the highest speed of 33 fps. Copyright © 2020, The Authors. All rights reserved.

关键词： Convolutional neural networks

来源：评论

学校读者我要写书评

暂无评论

Distributionally Robust Fault Detection by using Kernel Density Estimation ⁎

引用

IFAC-PapersOnLine 2020年第2期53卷 652-657页

作者： Ting Xue Maiying Zhong Lijia Luo Linlin Li Steven X. Ding Institute for Automatic Control and Complex Systems University of Duisburg-Essen Germany College of Electrical Engineering and Automation Shandong University of Science and Technology China Institute of Process Equipment and Control Engineering Zhejiang University of Technology China School of Automation and Electrical Engineering University of Science and Technology Beijing China

In this paper, a method of distributionally robust fault detection (FD) is proposed for stochastic linear discrete-time systems by using the kernel density estimation (KDE) technique. For this purpose, an H 2 optimization-based fault detection filter is constructed for residual generation. Towards maximizing the fault detection rate (FDR) for a prescribed false alarm rate (FAR), the residual evaluation issue regarding the design of residual evaluation function and threshold is formulated as a distributionally robust optimization problem, wherein the so-called confidence sets are constituted to model the ambiguity of distribution knowledge of residuals in fault-free and faulty cases. A KDE based solution, robust to the estimation errors in probability distribution of residual caused by the finite number of samples, is further developed to address the targeting problem such that the residual evaluation function, threshold as well as the lower bound of FDR can be achieved simultaneously. A case study on a vehicle lateral control system demonstrates the applicability of the proposed FD method.

关键词： Fault detection distributionally robust optimization kernel density estimation

来源：评论

学校读者我要写书评

暂无评论

The Knowledge Competencies and Digital Competencies of Project Managers in Life Cycle Cost Management

The Knowledge Competencies and Digital Competencies of Proje...

引用

International Conference on Emerging eLearning Technologies and Applications (ICETA)

作者： T. Mandicak P. Mesaros M. Spisakova M. Behun A. Kanalikova Faculty of Civil Engineering Management and Information Systems in Construction Kosice Slovakia Faculty Of Mining Ecology Process Control And Geotechnologies Kosice Slovakia Faculty of Civil Engineering Kosice Slovakia

ISBN: (数字)9781665422260

ISBN: (纸本)9781665446785

Training of project managers and their development of knowledge competencies and digital competencies is one of main attributes of success performance results in each sector. The use of digital and knowledge technologies can be a prerequisite for effective life-cycle cost management in context of development of digital and knowledge competencies. Life Cycle Cost Management is an important part of cost management and approach in each industry. The construction industry is an important sector of the country's economy. It is the relationship between project managers and their level of use of knowledge and digital competencies that can be key concerning effective cost management in construction. Acquisition of digital and knowledge competencies and skills through the use of digital and knowledge technologies is a process for increasing managerial competencies. This research addresses the relationship and how to acquire knowledge and digital competencies using knowledge and digital technologies in Life Cycle Cost Management. It is the relationship and use of digital technologies, the level of knowledge and digital competences and the level of lifetime costs that is the subject of research. The main goal of the research is to point out the relationship between the acquisition of knowledge and digital competencies and the amount of life cycle cost management in individual phases of the life cycle of a construction project.

关键词： Training Electronic learning Key performance indicator Data collection Information age Monitoring Construction industry

来源：评论

学校读者我要写书评

暂无评论

Realization of a three-dimensional photonic higher-order topological insulator

arXiv

引用

arXiv 2024年

作者： Wang, Ziyao Meng, Yan Yan, Bei Zhao, Dong Yang, Linyun Chen, Jing-Ming Cheng, Min-Qi Xiao, Tao Shum, Perry Ping Liu, Gui-Geng Yang, Yihao Chen, Hongsheng Xi, Xiang Zhu, Zhen-Xiao Xie, Biye Gao, Zhen State Key Laboratory of Optical Fiber and Cable Manufacture Technology Department of Electronic and Electrical Engineering Southern University of Science and Technology Shenzhen518055 China School of Electrical Engineering and Intelligentization Dongguan University of Technology Dongguan523808 China Hubei Province Key Laboratory of Systems Science in Metallurgical Process College of Science Wuhan University of Science and Technology Wuhan430081 China Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore637371 Singapore Interdisciplinary Center for Quantum Information State Key Laboratory of Modern Optical Instrumentation ZJU-Hangzhou Global Science and Technology Innovation Center College of Information Science and Electronic Engineering ZJU-UIUC Institute Zhejiang University Hangzhou310027 China School of Science and Engineering The Chinese University of Hong Kong Shenzhen518172 China

The discovery of photonic higher-order topological insulators (HOTIs) has significantly expanded our understanding of band topology and provided unprecedented lower-dimensional topological boundary states for robust photonic devices. However, due to the vectorial and leaky nature of electromagnetic waves, it is challenging to discover three-dimensional (3D) topological photonic systems and photonic HOTIs have so far still been limited to two dimensions (2D). Here, we report on the first experimental realization of a 3D Wannier-type photonic HOTI in a tight-binding-like metal-cage photonic crystal, whose band structure matches well with that of a 3D tight-binding model due to the confined Mie resonances. By microwave near-field measurements, we directly observe coexisting topological surface, hinge, and corner states in a single 3D photonic HOTI, as predicted by the tight-binding model and simulation results. Moreover, we demonstrate that all-order topological boundary states are self-guided even in the light cone continuum and can be exposed to air without ancillary cladding, making them well-suited for practical applications. Our work thus opens routes to the multi-dimensional robust manipulation of electromagnetic waves at the outer surfaces of 3D cladding-free photonic bandgap materials and may find novel applications in 3D topological integrated photonics devices. © 2024, CC BY.

关键词： Topological insulators

来源：评论

学校读者我要写书评

暂无评论

In-Situ Study of Temperature- and Magnetic-Field-Induced Incomplete Martensitic Transformation in Fe-Mn-Ga

SSRN

引用

SSRN 2023年

作者： Sun, Xiaoming Cui, Jingyi Li, Shofu Ma, Zhiyuan Liss, Klaus-Dieter Li, Runguang Chen, Z. State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Department of Materials Science and Engineering China University of Petroleum-Beijing Beijing102249 China X-ray Science Division Argonne National Laboratory ArgonneIL60439 United States School of Mechanical Materials Mechatronic and Biomedical Engineering University of Wollongong Northfields Avenue WollongongNSW2522 Australia Australian Nuclear Science and Technology Organisation Lucas HeightsNSW2234 Australia Department of Civil and Mechanical Engineering Technical University of Denmark Kgs Lyngby2800 Denmark XI'AN Rare Metal Materials Institute Co. Ltd Xi’an710000 China

Significant interest to the stoichiometric and off-stoichiometric Fe2MnGa alloys is based on their complex phase transition behavior and potential application. In this study, temperature- and magnetic-field-induced phase transformations in the Fe41.5Mn28Ga30.5 magnetic shape memory alloy were investigated by in-situ synchrotron high-energy X-ray diffraction and in-situ neutron diffraction techniques. It is found that the incomplete phase transformation and phase coexistence behavior are always observed during fields applying and removing in Fe41.5Mn28Ga30.5. Typically, even at 4 K and under 0 T, or increasing the magnetic field to 11 T at 250 K, it is directly detected that the martensite and austenite still keep competing, making the phase transition incomplete. TEM observations at 300 K and 150 K indicate that the anti-phase boundaries and B2 precipitates may lead to the field-induced incomplete phase transformation behavior collectively. The present study may enrich the understanding of field-induced martensitic transformation in the Fe-Mn-Ga magnetic shape memory alloys. © 2023, The Authors. All rights reserved.

关键词： Magnetic fields

来源：评论

学校读者我要写书评

暂无评论

ALBATROSS Carbon neutrality and zero-emission vehicles with smart battery cells

引用

Transportation Research Procedia 2023年 72卷 2377-2384页

作者： Beatriz Correia Pedro Catarino Bjorn van de Ven Liat Gantman Anders Vestin David Britton Margit Harting Matthew Jennison Merve Öztürk İrem Sapmaz Eda Demir Josh Eichman Maite Etxandi Santolaya Tomas Montes Ahsan Habib M. Azizur Rahman Sulalit Bandyopadhyay Jahn Axel Jon Gowdy Mohsen Moslemin Koupaie Iosu Cendoya EWF Lisbon Portugal INND BATTERIES BV Netherland ALGOLION LTD REHOVOT Israel ZEMISSION AB LUND Sweden PST SENSORS EUROPE LTD United Kingdom YESILOVA HOLDING AS BURSA TURKEY FUNDACIO INSTITUT DE RECERCA DE L'ENERGIA DE CATALUNYA Spain TECHNOVATIVE SOLUTIONS LTD MANCHESTER United Kingdom NORGES TEKNISK-NATURVITENSKAPELIGE UNIVERSITET NTNU TRONDHEIM Norway FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. MUNCHEN Germany CENTRE FOR PROCESS INNOVATION LIMITED LBG United Kingdom THE UNIVERSITY OF NOTTINGHAM University Park NOTTINGHAM United Kingdom The Control Systems Group Electrical Engineering Department of the Eindhoven University of Technology

ALBATROSS is a European Funded project by the European Commission that addresses the needs of European Electric and Hybrid-Electric passenger vehicle market by overcoming driver concerns relating to battery range and anxiety, cost, long-term reliability, and excessive charging times. ALBATROSS will develop an integrated approach based on smart batteries combined with lightweight designs. Using innovative cooling technologies, we will achieve pack temperature range 5-40°C, with <3°C variation between battery cells and optimal operating temperature 20-23°C. The light weighting solutions, based on modular multi-material systems for battery modules and trays, will be fabricated and joined using cutting edge, fast and cost-effective processes, with disassembly, recycling and reuse designed in as a part of an eco-design approach. The modular approach provides solutions for BEVs and PHEVs.

关键词： Electric Propulsion Electric Vehicle Smart Batteries Temperature control Battery Management systems

来源：评论

学校读者我要写书评

暂无评论

Distributed Functional Safety for Modular process Plants

Distributed Functional Safety for Modular Process Plants

引用

International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Anselm Klose Florian Pelzer Mike Barth Rainer Drath Rainer Oehlert Silvia Vélez León Alexander Horch Christoph Kotsch Jochen Knab Bernhard Gut Hartmut Manske Leon Urbas Process Control Systems & Process Systems Engineering TU Dresden Dresden Germany Research Training Group 2323 TU Dresden Dresden Germany IoS³ - Institute of Smart Systems and Services Pforzheim University Pforzheim Germany Retired Process Engineering & Automation The Dow Chemical Company Stade Germany Dept. Global Consulting HIMA Paul Hildebrandt GmbH Brühl Germany R. D. & Product Management HIMA Paul Hildebrandt GmbH Brühl Germany Control Systems Technology BASF SE Ludwigshafen Germany Engineering Services Merck KGaA Darmstadt Germany Retired Electrical Engineering for Process Automation Endress+Hauser Germany Automation and Robotics Merck KGaA Darmstadt Germany

ISBN: (数字)9781728189567

ISBN: (纸本)9781728189574

Modular process plants enable the process industry to adapt to volatile and fluctuating markets. The preferred process technology concept for these market scenarios is realized through combining pre-engineered process equipment assemblies (PEA) from different manufacturers with standardized interfaces. While the flexibility gain for this type of plants is high, the design of the safety systems of these modular plants in terms of exchangeability and compatibility is challenging. One solution could be the development of a safety-interface for PEAs to create flexible and scalable safety systems. The principles of modular basic process control are analyzed and requirements with respect to safety design are discussed. The authors provide a differentiation of the intramodular safety concept of a single PEA from the intermodular safety concept of a complete modular plant. A concept for safe and modular interaction of PEAs in a modular plant is developed and additionally validated on a basic demonstrator. Finally, from these findings, standardization requirements are provided and aspects for further research are pointed out.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The Level of Digital and Communication Competencies of Students at Faculties of Civil engineering in the Distance Learning Form

The Level of Digital and Communication Competencies of Stude...

引用

International Conference on Emerging eLearning Technologies and Applications (ICETA)

作者： P. Mesaros A. Kanalikova A. Behunova T. Mandicak M. Spisakova Faculty of Civil Engineering Management and Information Systems in Construction Kosice Slovakia Faculty of Civil Engineering Kosice Slovakia Faculty of Mining Ecology Process Control and Geotechnologies Institute of Earth Resources Kosice Slovakia

ISBN: (数字)9781665422260

ISBN: (纸本)9781665446785

For education, 2020 became the year of distance learning and online communication in the teacher-student relationship, but also in the student-student relationship. This teaching system brings many challenges for both parties and the need to improve the communication and digital competencies of all involved. It also requires increased demands on the hardware and software provision of teaching on both sides of the teaching process. This article focuses on the issue and description of communication and digital skills needed for distance learning. The main goal of the research is to compare and map the communication and digital ICT competencies of faculty students with a construction focus during full-time and distance learning. The results of the research are analyzed in the article using methods of descriptive as well as analytical statistics.

关键词： COVID-19 Computer aided instruction Pandemics Education Software Information and communication technology Faces

来源：评论

学校读者我要写书评

暂无评论

Holographic cosmology with two coupled fluids in the presence of viscosity

arXiv

引用

arXiv 2021年

作者： Brevik, I. Timoshkin, A.V. Department of Energy and Process Engineering Norwegian University of Science and Technology TrondheimN-7491 Norway Tomsk State Pedagogical University Kievskaja Street 60 Tomsk634061 Russia International Laboratory of Theoretical Cosmology and Tomsk State University of Control Systems and Radio Electronics Lenin Avenue 36 Tomsk634050 Russia

We explore the cosmological models of the late-time universe based on the holographic principle, taking into account the properties of the viscosity of the dark fluid. We use the mathematical formalism of generalized infrared cutoff holographic dark energy, as presented by Nojiri and Odintsov (2017). We consider the Little Rip, the Pseudo Rip, and a bounce exponential model, with two interacting fluids, namely dark energy and dark matter in a spatially-flat Friedmann-Robertson-Walker universe. Within these models, analytical expressions are obtained for infrared cutoffs in terms of the particle horizons. The law of conservation of energy is presented, from a holographic point of view. © 2021, CC BY.

关键词： Holography

来源：评论

学校读者我要写书评

暂无评论

Fault detection sensitivity of T2 and MEWMA control Charts by using local grouping of variables*

Fault detection sensitivity of T2 and MEWMA Control Charts b...

引用

International Conference on control and Automation (ICCA)

作者： T. Friebel R. Haber S.X. Ding Institute of Process Engineering and Plant Design Cologne University of Applied Science Köln Germany Institute for Automatic Control and Complex Systems (AKS) University of Duisburg-Essen Duisburg Germany

ISBN: (数字)9781728190938

ISBN: (纸本)9781728190945

The drawback of multidimensional control charts is that with increasing number of variables the fault detection sensitivity decreases. A new two-stage hierarchical multidimensional control chart is presented which works with less dimensionality than the number of the monitored variables. The basic idea is not neglecting but grouping some of the less important variables. The effectiveness of the new method is shown by simulating the average run length for different types of faults. The proposed method is illustrated by the fault detection of an industrial CO 2 sensor.

关键词： control charts Principal component analysis Aerospace electronics Standards Monitoring Market research Sensitivity analysis

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：