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23rd IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2018

作者： Malakuti, Somayeh Bock, Jurgen Weser, Michael Venet, Pierre Zimmermann, Patrick Wiegand, Mathias Grothoff, Julian Wagner, Constantin Bayha, Andreas ABB Corporate Research Center Ladenburg Germany RD Corporate Research KUKA Deutschland GmbH Augsburg Germany Digital Engineering Fraunhofer IGCV Augsburg Germany Advanced Product Engineering Festo AG Co. KG Esslingen Germany Department of Process Control Engineering RWTH Aachen University Aachen Germany Model-based Systems Engineering Fortiss GmbH Munich Germany

ISBN: (纸本)9781538671085

Skill-based engineering is gaining attention as a means to increase flexibility and changeability in engineering industrial automation systems. This paper proposes the Skill-based engineering Model (SEM), which formally describes the core entities that play a role in skill-based engineering. Accordingly, we propose a four dimensional classification scheme for skills, and assess the suitability of a property model and OWL ontologies to describe and match skills. For each case, we identify a list of challenges that must be addressed to make skill-based engineering a reality in industrial automation systems. We believe that this paper can guide researchers to study various open aspects of skill-based engineering to make it feasible in complex industrial automation systems. © 2018 IEEE.

关键词： Ontology

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Performance behavior of prediction filters for respiratory motion compensation in radiotherapy

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Current Directions in Biomedical engineering 2017年第2期3卷 429-432页

作者： Jöhl, Alexander Berdou, Yannick Guckenberger, Matthias Klöck, Stephan Meboldt, Mirko Zeilinger, Melanie Tanadini-Lang, Stephanie Daners, Marianne Schmid Product Development Group Zurich Department of Mechanical and Process Engineering ETH Zurich Tannenstrasse 3 Zurich 8092 Switzerland Institute for Dynamic Systems and Control Department of Mechanical and Process Engineering ETH Zurich Switzerland Department of Radiation Oncology University Hospital Zurich University of Zurich Switzerland

Introduction: In radiotherapy, tumors may move due to the patient’s respiration, which decreases treatment accuracy. Some motion mitigation methods require measuring the tumor position during treatment. Current available sensors often suffer from time delays, which degrade the motion mitigation performance. However, the tumor motion is often periodic and continuous, which allows predicting the motion ahead. Method and Materials: A couch tracking system was simulated in MATLAB and five prediction filters selected from literature were implemented and tested on 51 respiration signals (median length: 103 s). The five filters were the linear filter (LF), the local regression (LOESS), the neural network (NN), the support vector regression (SVR), and the wavelet least mean squares (wLMS). The time delay to compensate was 320 ms. The normalized root mean square error (nRMSE) was calculated for all prediction filters and respiration signals. The correlation coefficients between the nRMSE of the prediction filters were computed. Results: The prediction filters were grouped into a low and a high nRMSE group. The low nRMSE group consisted of the LF, the NN, and the wLMS with a median nRMSE of 0.14, 0.15, and 0.14, respectively. The high nRMSE group consisted of the LOESS and the SVR with both a median nRMSE of 0.34. The correlations between the low nRMSE filters were above 0.87 and between the high nRMSE filters it was 0.64. Conclusion: The low nRMSE prediction filters not only have similar median nRMSEs but also similar nRMSEs for the same respiration signals as the high correlation shows. Therefore, good prediction filters perform similarly for identical respiration patterns, which might indicate a minimally achievable nRMSE for a given respiration pattern. © 2017 Alexander Jöhl et al., published by De Gruyter.

关键词： Time delay

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An Improved Output Feedback MPC scheme for Constrained Linear systems

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IFAC-PapersOnLine 2017年第1期50卷 15506-15511页

作者： Subramanian, Sankaranarayanan Lucia, Sergio Engell, Sebastian Process Dynamics and Operations Group DortmundTU United States Otto-von-Guericke-University Magdeburg Laboratory for Systems Theory and Automatic Control Institute of Automation Engineering Germany

We propose an output feedback model predictive control (MPC) scheme that is independent of the estimation method employed. The proposed approach is non-conservative by design as the feedback information subject to estimation errors is explicitly considered in the predictions. The proposed scheme is robust to both the plant-model mismatch and the estimation error and avoids the unnecessary conservatism introduced by other existing output feedback MPC approaches in the literature. We achieve this by making use of all the available information at every time-step and formulate a control policy with the assumption that bounds for the estimation error are available at all times. We show that the proposed scheme is recursively feasible and demonstrate its advantages using a double-integrator example. © 2017

关键词： Feedback Errors Estimation Linear systems Model predictive control Predictive control systems Robust control Constrained linear systems Constrained systems Estimation methods Feed back information Multi stage Output feedback Plant model mismatches Robust model predictive control

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Interfacial Speciation Determines Interfacial Chemistry: X‐ray‐Induced Lithium Fluoride Formation from Water‐in‐salt Electrolytes on Solid Surfaces

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Angewandte Chemie 2020年第51期132卷 23380-23387页

作者： Hans‐Georg Steinrück Chuntian Cao Maria R. Lukatskaya Christopher J. Takacs Gang Wan David G. Mackanic Yuchi Tsao Jingbo Zhao Brett A. Helms Kang Xu Oleg Borodin James F. Wishart Michael F. Toney SSRL Materials Science Division SLAC National Accelerator Laboratory Menlo Park CA 94025 USA SLAC National Accelerator Laboratory Joint Center for Energy Storage Research (JCESR) Lemont IL 60439 USA Department Chemie Universität Paderborn 33098 Paderborn Germany Laboratory for Electrochemical Energy Systems Department of Mechanical and Process Engineering ETH Zürich 8092 Zürich Switzerland Department of Chemical Engineering Stanford University Stanford USA Department of Chemistry Stanford University Stanford USA Joint Center for Energy Storage Research Lawrence Berkeley National Laboratory Berkeley CA 94720 USA The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA Energy Storage Branch Sensor and Electron Devices Directorate U.S. Army Research Laboratory Adelphi 20783 USA Chemistry Division Brookhaven National Laboratory Upton NY 11973 USA Department of Chemical and Biological Engineering University of Colorado Boulder CO 80309 USA

Using synchrotron X‐rays the LiTFSI/H2O electrolyte interfacial decomposition pathways in the „water‐in‐salt“ and „salt‐in‐water“ regimes are investigated. The resultant photoelectron‐induced reduction was revealed to be concentration‐dependent interfacial chemistry that only occurs among closely contact ion‐pairs, which constitutes the rationale behind the „water‐in‐salt“ ***‐concentrated “water‐in‐salt” electrolytes recently spurred resurgent interest for high energy density aqueous lithium‐ion batteries. Thermodynamic stabilization at high concentrations and kinetic barriers towards interfacial water electrolysis significantly expand the electrochemical stability window, facilitating high voltage aqueous cells. Herein we investigated LiTFSI/H2O electrolyte interfacial decomposition pathways in the “water‐in‐salt” and “salt‐in‐water” regimes using synchrotron X‐rays, which produce electrons at the solid/electrolyte interface to mimic reductive environments, and simultaneously probe the structure of surface films using X‐ray diffraction. We observed the surface‐reduction of TFSI− at super‐concentration, leading to lithium fluoride interphase formation, while precipitation of the lithium hydroxide was not observed. The mechanism behind this photoelectron‐induced reduction was revealed to be concentration‐dependent interfacial chemistry that only occurs among closely contact ion‐pairs, which constitutes the rationale behind the “water‐in‐salt” *** the commercial success of lithium‐ion batteries (LIBs) in our life ranging from personal electronic devices, to electric vehicles and grid storage, they still raise significant safety concerns, owing primarily to the combination of their high energy density and the utilization of flammable non‐aqueous electrolytes. Although catastrophic failure events are rare, they carry significant human and economic impact, as evident by recent calamities involving both electronic devices and electric vehicles. Wate

关键词： aqueous lithium-ion batteries interfaces interphases water-in-salt electrolyte X-ray chemistry

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Secure analysis of dynamic networks under pinning attacks against synchronization

arXiv

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arXiv 2019年

作者： Li, Yuzhe Shi, Dawei Chen, Tongwen State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Shenyang110004 State Key Laboratory of Intelligent Control and Decision of Complex Systems School of Automation Beijing Institute of Technology Beijing100081 China Department of Electrical and Computer Engineering University of Alberta EdmontonABT6G 1H9 Canada

In this paper, we first consider a pinning node selection and control gain co-design problem for complex networks. A necessary and sufficient condition for the synchronization of the pinning controlled networks at a homogeneous state is provided. A quantitative model is built to describe the pinning costs and to formulate the pinning node selection and control gain design problem for different scenarios into the corresponding optimization problems. Algorithms to solve these problems efficiently are presented. Based on the developed results, we take the existence of a malicious attacker into consideration and a resource allocation model for the defender and the malicious attacker is described. We set up a leader-follower Stackelberg game framework to study the behaviour of both sides and the equilibrium of this security game is investigated. Numerical examples and simulations are presented to demonstrate the main results. Copyright © 2019, The Authors. All rights reserved.

关键词： Complex networks

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State-based control of process services within modular process plants

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Procedia CIRP 2018年 72卷 1088-1093页

作者： Henry Bloch Stephan Hensel Mario Hoernicke Katharina Stark Anna Menschner (neé Hahn) Alexander Fay Leon Urbas Torsten Knohl Jens Bernshausen Institute of Automation Technology Helmut-Schmidt-University Holstenhofweg 85 22043 Hamburg Germany Chair of Process Control Systems and Process Systems Engineering Group Technische Universität Dresden 01062 Dresden Germany ABB Corporate Research Opertions Management Wallstadter Straße 59 68526 Bayer AG 51386 Leverkusen Germany INVITE GmbH 51386 Leverkusen Germany

The modularization of process plants is an approach to cope with the changing requirements of the process industry, such as highly volatile markets and shorter product lifecycles. Each module offers services as encapsulated process functions to the superior control system for the orchestration. These services are controlled in a state-based way. The encapsulation of these services in a reasonable way is a difficult task, because aspects of process and automation engineering must be considered. This contribution introduces an approach for the encapsulation of process functions in services from an automation point of view. Furthermore, the operation modes of modules, services and field devices are discussed. Additionally, possible solutions for the orchestration based on recipe models are introduced. The developed concepts have been tested within a simulation environment.

关键词： Modular process automation Microservices Orchestration State-based control Operating modes Service-oriented architectures

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Inside Back Cover: Integrated Soft Porosity and Electrical Properties of Conductive-on-Insulating Metal-Organic Framework Nanocrystals (Angew. Chem. Int. Ed. 35/2023)

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Angewandte Chemie International Edition 2023年第35期62卷

作者： Prof. Ming-Shui Yao Prof. Ken-ichi Otake Jiajia Zheng Masahiko Tsujimoto Dr. Yi-Fan Gu Lu Zheng Dr. Ping Wang Dr. Shivanna Mohana Dr. Mickaele Bonneau Tomoyuki Koganezawa Tetsuo Honma Hirotaka Ashitani Shogo Kawaguchi Prof. Yoshiki Kubota Prof. Susumu Kitagawa Institute for Integrated Cell-Material Sciences Kyoto University Institute for Advanced Study Kyoto University Yoshida Ushinomiya-cho Sakyo-ku Kyoto 606-8501 Japan State Key Laboratory of Multi-phase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Zhongguancun Beiertiao No. 1 Haidian District Beijing 100190 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District Beijing 100049 China College of Environmental Science and Engineering State Key Laboratory of Pollution Control and Resource Reuse Tongji University Siping Road 1239 Shanghai 200092 China Japan Synchrotron Radiation Research Institute (JASRI) 1-1-1 Kouto Sayo-cho Sayo-gun Hyogo 679-5198 Japan Department of Physical Science Graduate School of Science Osaka Prefecture University Osaka Japan Department of Physics Graduate School of Science Osaka Metropolitan University Osaka Japan

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Integrated Soft Porosity and Electrical Properties of Conductive-on-Insulating Metal-Organic Framework Nanocrystals

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Angewandte Chemie 2023年第35期135卷

A one-stone, two-bird method to integrate the soft porosity and electrical properties of distinct metal–organic frameworks (MOFs) into a single material involves the design of conductive-on-insulating MOF ( c MOF-on- i MOF) heterostructures that allow for direct electrical control. Herein, we report the synthesis of c MOF-on- i MOF heterostructures using a seeded layer-by-layer method, in which the sorptive i MOF core is combined with chemiresistive c MOF shells. The resulting c MOF-on- i MOF heterostructures exhibit enhanced selective sorption of CO 2 compared to the pristine i MOF (298 K, 1 bar, S from 15.4 of ZIF-7 to 43.2–152.8). This enhancement is attributed to the porous interface formed by the hybridization of both frameworks at the molecular level. Furthermore, owing to the flexible structure of the i MOF core, the c MOF-on- i MOF heterostructures with semiconductive soft porous interfaces demonstrated high flexibility in sensing and electrical “shape memory” toward acetone and CO 2 . This behavior was observed through the guest-induced structural changes of the i MOF core, as revealed by the operando synchrotron grazing incidence wide-angle X-ray scattering measurements.

关键词： Conductivity Metal–Organic Frameworks Operando Shape Memory Soft Porosity

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Innenrücktitelbild: Integrated Soft Porosity and Electrical Properties of Conductive-on-Insulating Metal-Organic Framework Nanocrystals (Angew. Chem. 35/2023)

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Angewandte Chemie 2023年第35期135卷

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Viscous accelerating universe with non-linear and logarithmic equation of state fluid

arXiv

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arXiv 2019年

作者： Brevik, I. Makarenko, A.N. 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 Tomsk State University of Control Systems and Radio Electronics Lenin Avenue 40 Tomsk634050 Russia National Research Tomsk State University Lenin Avenue 36 Tomsk634050 Russia

We describe the accelerated expansion of the late-time universe using a generalized equation of state (EoS) when account is taken of bulk viscosity. We assume a homogeneous and isotropic Friedmann-Robertson-Walker spacetime. Solutions of the gravitational equations for dark energy are obtained in implicit form. Characteristic properties of the Universe evolution in the presence of the viscosity effects are discussed. Finally, the dynamics of the accelerated expansion of the viscous universe is discussed, on the basis of a modified logarithmic-corrected EoS. Copyright © 2019, The Authors. All rights reserved.

关键词： Equations of state

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