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Physical Review E 2019年第1期99卷 010201(R)-010201(R)页

作者： Nan Yao Zi-Gang Huang Hai-Peng Ren Celso Grebogi Ying-Cheng Lai Department of Applied Physics Xi'an University of Technology Xi'an 710048 China The Key Laboratory of Biomedical Information Engineering of Ministry of Education National Engineering Research Center of Health Care and Medical Devices The Key Laboratory of Neuro-informatics & Rehabilitation Engineering of Ministry of Civil Affairs and Institute of Health and Rehabilitation Science School of Life Science and Technology Xi'an Jiaotong University Xi'an 710049 China Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing Xi'an University of Technology Xi'an 710048 China Institute for Complex Systems and Mathematical Biology King's College University of Aberdeen Aberdeen AB24 3UE United Kingdom School of Electrical Computer and Energy Engineering Arizona State University Tempe Arizona 85287 USA Department of Physics Arizona State University Tempe Arizona 85287 USA

Chimera states in spatiotemporal dynamical systems have been investigated in physical, chemical, and biological systems, and have been shown to be robust against random perturbations. How do chimera states achieve their robustness? We uncover a self-adaptation behavior by which, upon a spatially localized perturbation, the coherent component of the chimera state spontaneously drifts to an optimal location as far away from the perturbation as possible, exposing only its incoherent component to the perturbation to minimize the disturbance. A systematic numerical analysis of the evolution of the spatiotemporal pattern of the chimera state towards the optimal stable state reveals an exponential relaxation process independent of the spatial location of the perturbation, implying that its effects can be modeled as restoring and damping forces in a mechanical system and enabling the articulation of a phenomenological model. Not only is the model able to reproduce the numerical results, it can also predict the trajectory of drifting. Our finding is striking as it reveals that, inherently, chimera states possess a kind of “intelligence” in achieving robustness through self-adaptation. The behavior can be exploited for the controlled generation of chimera states with their coherent component placed in any desired spatial region of the system.

关键词： Chimera states Collective dynamics Coupled oscillators Chaos & nonlinear dynamics

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Non-invasive Investigation and Documentation in the Bieliński Palace in Otwock Wielki 7th

Non-invasive Investigation and Documentation in the Bielińs...

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7th International Conference on Digital Heritage, EuroMed 2018

作者： Kaliszewska, A. Bieńkowski, R. Markiewicz, J. Lapiński, S. Pilarska, M. Feliks, A. Department of Modelling and Optimization of Dynamical Systems System Research Institute Polish Academy of Sciences Newelska 6 Warsaw01-447 Poland Faculty of Geodesy and Cartography Institute of Photogrammetry Remote Sensing and Spatial Information Systems Warsaw University of Technology plac Politechniki 1 Warsaw00-661 Poland Faculty of Geodesy and Cartography Division of Engineering Geodesy and Control Surveying System Warsaw University of Technology plac Politechniki 1 Warsaw00-661 Poland Museum of Interiors in Otwock Wielki National Museum in Warsaw Zamkowa 49 Karczew05-480 Poland

ISBN: (纸本)9783030017613

The paper presents the ongoing project conducted by an interdisciplinary team at the Bieliński Palace in Otwock Wielki, near Warsaw (Poland). The main aim of the project is to document the architecture and architectural elements with the use of digital methods such as photogrammetry and 3D scanning, as well as investigating the construction phases of the palace, through the analysis of the digital data collected. The Bieliński Palace is an example of élite architecture of the Baroque period in Poland. Thought the architect responsible for the original plans remains unknown, the plan, the proportions, as well as architectural details find good parallels in the finest buildings of the capital of that time, and show clear inspirations from the western examples of the architecture of the period. Since the archival data is very scarce, the only way to learn about the history and construction phases of the palace is through a detailed analysis of the building’s structure. To this aim we perform a series of analyses of the digital data, such as wall flatness analysis and laser beam refraction intensity. We believe that the careful analysis of the data collected for the purpose of documentation can reveal valuable information that will contribute to our understanding of the building’s history. © 2018, Springer Nature Switzerland AG.

关键词： Photogrammetry

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Author Correction: Advances and prospects for the Human BioMolecular Atlas Program (HuBMAP)

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Nature cell biology 2024年第5期26卷 839页

作者： Sanjay Jain Liming Pei Jeffrey M Spraggins Michael Angelo James P Carson Nils Gehlenborg Fiona Ginty Joana P Gonçalves James S Hagood John W Hickey Neil L Kelleher Louise C Laurent Shin Lin Yiing Lin Huiping Liu Alexandra Naba Ernesto S Nakayasu Wei-Jun Qian Andrea Radtke Paul Robson Brent R Stockwell Raf Van de Plas Ioannis S Vlachos Mowei Zhou Katy Börner Michael P Snyder Department of Medicine Washington University School of Medicine St Louis MO USA. sanjayjain@wustl.edu. Department of Pediatrics Washington University School of Medicine St Louis MO USA. sanjayjain@wustl.edu. Department of Pathology and Immunology Washington University School of Medicine St. Louis MO USA. sanjayjain@wustl.edu. Center for Mitochondrial and Epigenomic Medicine Department of Pathology and Laboratory Medicine Children's Hospital of Philadelphia and Perelman School of Medicine University of Pennsylvania Philadelphia PA USA. lpei@pennmedicine.upenn.edu. Department of Cell and Developmental Biology and the Mass Spectrometry Research Center Vanderbilt University School of Medicine Nashville TN USA. jeff.spraggins@vanderbilt.edu. Department of Pathology Stanford School of Medicine Stanford CA USA. Texas Advanced Computing Center University of Texas at Austin Austin TX USA. Department of Biomedical Informatics Harvard Medical School Boston MA USA. GE Research Center Niskayuna NY USA. Department of Intelligent Systems Delft University of Technology Delft Netherlands. Department of Pediatrics (Pulmonology) and Program for Rare and Interstitial Lung Disease University of North Carolina at Chapel Hill Chapel Hill NC USA. Department of Microbiology and Immunology Stanford University Stanford CA USA. Departments of Medicine Chemistry and Molecular Biosciences Northwestern University Evanston IL USA. Department of Obstetrics Gynecology and Reproductive Sciences University of California San Diego La Jolla CA USA. Division of Cardiology University of Washington School of Medicine Seattle WA USA. Department of Surgery Washington University School of Medicine St Louis MO USA. Departments of Pharmacology Medicine (Hematology and Oncology) Lurie Cancer Center Northwestern University Feinberg School of Medicine Chicago IL USA. Department of Physiology and Biophysics University of Illinois at Chicago Chicago IL USA. Biological Sciences Division

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Proposal of global PBL education for engineers using sequence learning kit 4

Proposal of global PBL education for engineers using sequenc...

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4th International Conference on engineering, Applied Sciences and Technology, ICEAST 2018

作者： Yajima, Kuniaki Maneerat, Noppadol Sugaya, Junichi Nitta, Akihiro Takeichi, Yoshihiro Sato, Jun Dept. Information Networks National Institute of Technology Sendai College Sendai Miyagi Japan King Mongkut's Institute of Technology Ladkrabang Thailand Dept. Intelligent and Electronics Systems National Institute of Technology Sendai College Sendai Miyagi Japan Department of Information and Electronic System Engineering National Institute of Technology Sendai College Sendai Miyagi Japan Dept. Electrical and Electronic Engineering National Institute of Technology Tsuruoka College Tsuruoka Yamagata Japan Dept.Control and Information Systems Engineering National Institute of Technology Tsuruoka College Tsuruoka Yamagata Japan

ISBN: (纸本)9781538649565

Recently, in the field of education, learning methods called active learning and Global Project Based Learning are paying attention. We suggest education material and theme as the Global engineering PBL education. So we developed the learning kit of sequence control. That is simple positioning control system which consist of PLC, sensors and some balls. It looks like game board, but that can change difficulty of the problem that the angle is changed and the number of the sensor is changed. Students cooperate to solve the problem that many balls are caught. This will be active learning and be PBL of the Problem Based Learning. We investigate how student's Generic Skill grows by implementation of Global PBL. © 2018 IEEE.

关键词： Students

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Fidelity-based probabilistic q-learning for control of quantum systems

arXiv

引用

arXiv 2018年

作者： Chen, Chunlin Dong, Daoyi Li, Han-Xiong Chu, Jian Tarn, Tzyh-Jong Department of Control and System Engineering Nanjing University Nanjing210093 China Department of Chemistry Princeton University PrincetonNJ08544 United States School of Information Technology and Electrical Engineering University of New South Wales Australian Defence Force Academy CanberraACT2600 Australia Institute of Cyber-Systems and Control State Key Laboratory of Industrial Control Technology Zhejiang University Hangzhou310027 China Department of Systems Engineering and Engineering Management City University of Hong Kong Hong Kong Department of Electrical and Systems Engineering Washington University in St. Louis St. LouisMO63130 United States

The balance between exploration and exploitation is a key problem for reinforcement learning methods, especially for Q-learning. In this paper, a fidelity-based probabilistic Qlearning (FPQL) approach is presented to naturally solve this problem and applied for learning control of quantum systems. In this approach, fidelity is adopted to help direct the learning process and the probability of each action to be selected at a certain state is updated iteratively along with the learning process, which leads to a natural exploration strategy instead of a pointed one with configured parameters. A probabilistic Q-learning (PQL) algorithm is first presented to demonstrate the basic idea of probabilistic action selection. Then the FPQL algorithm is presented for learning control of quantum systems. Two examples (a spin- 1/2 system and a Λ-type atomic system) are demonstrated to test the performance of the FPQL algorithm. The results show that FPQL algorithms attain a better balance between exploration and exploitation, and can also avoid local optimal policies and accelerate the learning process. Copyright © 2018, The Authors. All rights reserved.

关键词： Reinforcement learning

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Yet Another Algorithm for the Computation of Polyhedral Positive Invariant Sets

Yet Another Algorithm for the Computation of Polyhedral Posi...

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IEEE Conference on control Technology and Applications

作者： Daniel Y. Rubin Hoai-Nam Nguyen Per-Olof Gutman Autonomous Systems Program Israel Institute of Technology Haifa Israel Control Signal and System Department IFP Energies Nouvelles Lyon France Faculty of Civil and Environmental Engineering Israel Institute of Technology Haifa Israel

We present a new algorithm for the computation of polyhedral positive invariant sets. A set given by its half-spaces is used to yield an optimized positive invariant set w.r.t. a given autonomous system. The algorithm requires the solution of a single semi-definite program followed by a linear program. Extensions to the plant uncertain case, and to a symmetric set case are presented. Two numerical examples demonstrate the algorithm usage and capabilities.

关键词： Yet Another Algorithm Computation Polyhedral Positive Invariant Sets

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Improvements on Interpolation Techniques based on Linear Programming for Constrained control

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IFAC-PapersOnLine 2017年第1期50卷 1403-1408页

作者： Rubin D. Mercader P. Nguyen H.-N. Gutman P.-O. Baños A. Autonomous Systems Program Technion – Israel Institute of Technology Haifa Israel Department of Computer and System Engineering University of Murcia Murcia Spain Control Signal and System Department IFP Energies Nouvelles Lyon France Faculty of Civil and Environmental Engineering Technion – Israel Institute of Technology Haifa Israel

We present some improvements on interpolation based control (IC) for linear discrete-time systems with polyhedral constraints on the control and the states variables. The plant may be uncertain, time-varying, and subject to bounded disturbances. Roughly speaking, IC approach is based on the interpolation between an inner and an outer controller. The extension presented here is twofold. On the one hand, the IC approach is extended to deal with higher order inner controllers, making it e.g. possible to incorporate integral action in a vicinity of the origin. On the other hand, this paper presents a modification that better exploits the control signal range. As with previous IC strategies, the presented method demands relatively low online computational resources, and is applicable also to uncertain plants. The benefits of the improved scheme are illustrated in some examples. © 2017

关键词： Constrained control Linear programing Model predictive optimization-based control Robust control Time-varying systems

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Development of IPMC driven 3D Shape Indicator

Development of IPMC driven 3D Shape Indicator

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SICE Annual Conference

作者： Mizuho Katayama Masaki Yamakita Department of Control and Systems Engineering Tokyo Institute of Technology Tokyo Japan Department of System and Control Engineering Tokyo Institute of Technology Tokyo Japan

In this paper, we propose a 3D shape indicator device driven by Ionic-Polymer-Metal-Composite(IPMC). In the device, there are multiple actuators which can be driven continuously. Since IPMC is a soft actuator, it is expected that the device is human-friendly. Firstly, we describe the conventional control method of IPMC, then we describe the concept of the device and propose a control method with a Hammerstein model. The effectiveness of the proposed control method will be shown by an experiment.

关键词： IPMC MPC Hammerstein MIMO

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Near-real-time monitoring of global CO2 emissions reveals the effects of the COVID-19 pandemic (vol 11, 5172, 2020)

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NATURE COMMUNICATIONS 2020年第1期11卷 5172页

作者： Liu, Zhu Ciais, Philippe Deng, Zhu Lei, Ruixue Davis, Steven J. Feng, Sha Zheng, Bo Cui, Duo Dou, Xinyu Zhu, Biqing Guo, Rui Ke, Piyu Sun, Taochun Lu, Chenxi He, Pan Wang, Yuan Yue, Xu Wang, Yilong Lei, Yadong Zhou, Hao Cai, Zhaonan Wu, Yuhui Guo, Runtao Han, Tingxuan Xue, Jinjun Boucher, Olivier Boucher, Eulalie Chevallier, Frederic Tanaka, Katsumasa Wei, Yiming Zhong, Haiwang Kang, Chongqing Zhang, Ning Chen, Bin Xi, Fengming Liu, Miaomiao Breon, Francois-Marie Lu, Yonglong Zhang, Qiang Guan, Dabo Gong, Peng Kammen, Daniel M. He, Kebin Schellnhuber, Hans Joachim Department of Earth System Science Tsinghua University Beijing China. zhuliu@***. Laboratoire des Sciences du Climat et de l'Environnement LSCE CEA CNRS UVSQ Centre d'Etudes Orme de Merisiers Gif-sur-Yvette France. Department of Earth System Science Tsinghua University Beijing China. Department of Meteorology and Atmospheric Science The Pennsylvania State University University Park PA USA. Department of Earth System Science University of California Irvine 3232 Croul Hall Irvine CA USA. Division of Geological and Planetary Sciences California Institute of Technology Pasadena CA USA. Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment Technology School of Environmental Science and Engineering Nanjing University of Information Science & Technology Nanjing China. Key Laboratory of Land Surface Pattern and Simulation Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China. Climate Change Research Center Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China. Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China. School of Environment Tsinghua University Beijing China. School of Mathematical School Tsinghua University Beijing China. Department of Mathematical Sciences Tsinghua University Beijing China. Center of Hubei Cooperative Innovation for Emissions Trading System Wuhan China. Institut Pierre-Simon Laplace Sorbonne Université / CNRS Paris France. Université Paris Dauphine Place du Maréchal de Lattre de Tassigny 75016 Paris France. Center for Energy and Environmental Policy Research Beijing Institute of Technology Beijing China. Department of Electrical Engineering the State Key Lab of Control and Simulation of Power Systems and Generation Equipment Institute for National Governance and G

A Correction to this paper has been published: https://***/10.1038/s41467-020-20254-5

关键词： Climate sciences Atmospheric science Environmental sciences Environmental social sciences

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The insight HP3 penetrator (Mole) on mars: Soil properties derived from the penetration attempts and related activities

arXiv

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arXiv 2021年

作者： Spohn, Tilman Hudson, T.L. Marteau, E. Golombek, M. Grott, M. Wippermann, T. Ali, K.S. Schmelzbach, C. Kedar, S. Hurst, K. Trebi-Ollennu, A. Ansan, V. Garvin, J. Knollenberg, J. Müller, N. Piqueux, S. Lichtenheldt, R. Krause, C. Fantinati, C. Brinkman, N. Sollberger, D. Delage, P. Vrettos, C. Reershemius, S. Wisniewski, L. Grygorczuk, J. Robertsson, J. Edme, P. Andersson, F. Krömer, O. Lognonné, P. Giardini, D. Smrekar, S.E. Banerdt, W.B. International Space Science Institute Hallerstrasse 6 Bern3012 Switzerland DLR Institute of Planetary Research Rutherfordstr. 2 Berlin12489 Germany DLR Institute of Space Systems Robert-Hooke-Str. 7 Bremen28359 Germany DLR MUSC Space Operations and Astronaut Training Linder Höhe Köln51147 Germany DLR Institute of System Dynamics and Control Münchener Strasse 20 Wessling82234 Germany Jet Propulsion Laboratory California Institute of Technology Oak Grove Drive PasadenaCa91109 United States NASA Goddard Space Flight Center 8800 Greenbelt Road GreenbeltMD20771 United States Astronika Sp. z o.o ul. Bartycka 18 Warszawa00-716 Poland Institute of Geophysics Department of Earth Sciences ETH Zürich ZürichCH-8092 Switzerland Laboratoire de Planétologie et Géodynamique de Nantes Université de Nantes Nantes44322 France École nationale des ponts et chaussées Laboratoire Navier Paris France Department of Civil Engineering University of Kaiserslautern Kaiserslautern Germany Institut du Physique du Globe Paris Paris France Astrium Bremen Germany

The NASA InSight Lander on Mars includes the Heat Flow and Physical Properties Package HP3 to measure the surface heat flow of the planet. The package uses temperature sensors that would have been brought to the target depth of 3–5 m by a small penetrator, nicknamed the mole. The mole requiring friction on its hull to balance remaining recoil from its hammer mechanism did not penetrate to the targeted depth. Instead, by precessing about a point midway along its hull, it carved a 7 cm deep and 5-6 cm wide pit and reached a depth of initially 31 cm. The root cause of the failure - as was determined through an extensive, almost two years long campaign - was a lack of friction in an unexpectedly thick cohesive duricrust. During the campaign – described in detail in this paper – the mole penetrated further aided by friction applied using the scoop at the end of the robotic Instrument Deployment Arm and by direct support by the latter. The mole finally reached a depth of 40 cm, bringing the mole body 1–2 cm below the surface. It reversed its downward motion twice during attempts to provide friction through pressure on the regolith instead of directly with the scoop to the hull. The penetration record of the mole and its thermal sensors were used to measure thermal and mechanical soil parameters such as the penetration resistance of the duricrust of 0.5 - 1.2 MPa and a penetration resistance of a deeper layer (> 30 cm depth) of 5.3 MPa. Applying cone penetration theory, the resistance of the duricrust was used to estimate a cohesion of the latter of 4 - 25 kPa depending on the internal friction angle of the duricrust. Pushing the scoop with its blade into the surface and chopping off a piece of duricrust provided another estimate of the cohesion of 5.8 kPa. The hammerings of the mole were recorded by the seismometer SEIS and the signals could be used to derive a P-wave velocity of 114+40−19 m/s and a S-wave velocity of 60+10−7 m/s (Brinkman et al., 2021) representative of

关键词： Soils

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