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4th IEEE International Conference on Computer and Communications, ICCC 2018

作者： Ye, Li Wu, Chunming Qiang, Baohua Xie, Wu College of Computer Information Science Southwest University Chongqing China Guangxi Key Laboratory of Cryptography and Information Security Guilin University of Electronic Technology Guilin China Guangxi Colleges and Universities Key Laboratory of Cloud Computing and Complex System Guilin University of Electronic Technology Guilin China

ISBN: (纸本)9781538683392

In multi-criteria collaborative filtering, the data sparsity is a critical factor affecting the effectiveness of the algorithm. Existing solutions generally remove low-efficiency data through dimensionality reduction, decomposition, etc. While at lower data dimension, they also lose original data information, which impacts the accuracy of predicted ratings. This paper adopts a new processing strategy and proposes to use the matrix filling method to handle the missing data. Firstly, an improved similarity algorithm combined with the Jaccard Similarity Coefficient is used to calculate the predicted rating. Secondly, the Reliable Factor is introduced to prevent the error of filling data. Finally, multiple linear regression is employed for aggregating the ratings of the criteria to eventually yield preferred predicted ratings. A series of experiments show that the proposed method can precisely reflect the user's similarity and achieve better results in predicted ratings, in contrast to traditional methods. © 2018 IEEE.

关键词： Collaborative filtering

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Publisher's Note: “Coupling analysis of transient aerodynamic and dynamic response of articulated heavy vehicles under crosswinds” [Phys. Fluids 34, 017106 (2022)]

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Physics of Fluids 2022年第2期34卷

作者： Qianwen Zhang (张倩文) Chuqi Su (苏楚奇) Makoto Tsubokura (坪倉誠) Zhen Hu (胡振) Yiping Wang (汪怡平) 1Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan 430070 China 2Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan 430070 China 3Hubei Research Center for New Energy and Intelligent Connected Vehicle Wuhan University of Technology Wuhan 430070 China 4Graduate School of System Informatics Kobe University Kobe Hyogo 657-8501 Japan 5Complex Phenomena Unified Simulation Research Team RIKEN Advanced Institute for Computational Science Kobe Hyogo 650-0047 Japan 6Shanghai Huawei Technology Co. Shanghai 201206 China

This article was originally published online on 7 January 2022 with an incorrect page number. The correct page number is 017106. All online versions of this art

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A study on the comparison of "Internet+" paradigm and means and the analysis and evaluation of its typical development path

A study on the comparison of "Internet+" paradigm and means ...

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International Conference on Computer science and its Applications, CSA 2017

作者： Geng, Chao Qu, Shiyou Shi, Guoqiang Hou, Baocun Wang, Mei Lin, Tingyu Xiao, Yingying Jia, Zhengxuan School of Management Harbin Institute of Technology Harbin150001 China Beijing Complex Product Advanced Manufacturing Engineering Research Center Beijing Simulation Center Beijing100854 China State Key Laboratory of Intelligent Manufacturing System Technology Beijing Institute of Electronic System Engineering Beijing100854 China CASICloud Co. Ltd. Beijing100854 China

ISBN: (纸本)9789811076046

Taking Internet as carrier and adopting emerging information and communication technology, intelligent science and technology, "Internet+" paradigm and means are emerging and applied to the paradigm innovation, business optimization and efficiency improvement. In this paper, comparative analysis is firstly conducted on the "Internet+" paradigm and means from the perspective of paradigm, means and support technology to propose that Smart cloud manufacturing (Smart CMfg) is a scheme to match Chinese national conditions and competitive advantages. From the perspective of model-based system engineering, the incentive and feedback model of manufacturing industry development is then proposed to discuss the development path and mechanism of the transformation and upgrading of Chinese Smart CMfg-based manufacturing industry. Finally, this article demonstrates that the operation of the incentive and feedback model of manufacturing industry development may form massive cloud enterprise network which could support the upgrading and development of Chinese manufacturing industry. © Springer Nature Singapore Pte Ltd. 2018.

关键词： Industry 4.0

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Control of Stray Currents in Pipeline system based on Melnikov Theory 36

Control of Stray Currents in Pipeline System based on Melnik...

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第36届中国控制会议

作者： Peng Wang Bohu Li Guoqiang Shi Junhua Zhou School of Automation Science and Electrical Engineering BeiHang University Beijing Complex Product Advanced Manufacturing Engineering Research Center Beijing Simulation Center State Key Laboratory of Intelligent Manufacturing System Technology Beijing Institute of Electronic System Science and Technology on Space System Simulation Laboratory Beijing Simulation Center

ISBN: (纸本)9781538629185

The pipeline network interfered by the stray currents has been verified to be a complex nonlinear dynamical *** paper shows that the chaotic characteristic could be utilized in the stray currents *** prove this,this paper establishes an equivalent chaotic control *** we analyze this model by using Melnikov method and find out the condition under which the chaotic phenomenon will be *** order to get a sufficient proof for identifying the conclusion,simulation experiments are used to verify the validity of the control method.

关键词： stray currents chaos control Melnikov

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TransMut: a program to predict HLA-I peptide binding and optimize mutated peptides for vaccine design by the Transformer-derived self-attention model

Research Square

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Research Square 2021年

作者： Chu, Yanyi Zhang, Yan Wang, Qiankun Zhang, Lingfeng Wang, Xuhong Wang, Yanjing Wang, Jianmin Jiang, Xue Salahub, Dennis Russell Xiong, Yi Wei, Dong-Qing State Key Laboratory of Microbial Metabolism Shanghai-Islamabad-Belgrade Joint Innovation Center on Antibacterial Resistances Joint International Research Laboratory of Metabolic & Developmental Sciences School of Life Sciences and Biotechnology Shanghai Jiao Tong University Shanghai200030 China Department of Chemistry CMS - Centre for Molecular Simulation IQST - Institute for Quantum Science and Technology University of Calgary 2500 University Drive NW CalgaryABT2N 1N4 Canada Department of Clinical Oncology The University of Hong Kong-Shenzhen Hospital Shenzhen China School of Electrical Engineering and Computer Science University of Ottawa 75 Laurier Ave. OttawaONK1N 6N5 Canada The Ministry of Education Key Laboratory of System control and information processing Department of Automation School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai200030 China Integrative Biotechnology & Translational Medicine Yonsei University Incheon21983 Korea Republic of Peng Cheng Laboratory Vanke Cloud City Phase I Building 8 Xili Street Nanshan District Guangdong Shenzhen518055 China

Computational prediction of the interaction between human leukocyte antigen (HLA) and peptide (pHLA) can speed up epitope screening and vaccine design. Here, we develop the TransMut framework composed of TransPHLA for pHLA binding prediction and AOMP for mutated peptide optimization, which can be generalized to any binding and mutation task of biomolecules. Firstly, TransPHLA is developed by using a Transformer-derived self-attention model to predict pHLA binding, which is significantly superior to 11 previous methods on pHLA binding prediction, neoantigen and human papilloma virus vaccine identification. For vaccine design, the AOMP program is then developed to automatically optimize mutated peptides to search for mutant peptides with higher affinity to the target HLA and with high homology to the source peptide. Among 3660 non-binding pHLAs, 3630 were successfully mutated. Of these, 94% were verified by the IEDB recommended method, and 88% have homology higher than 80% to the source peptide. © 2021, CC BY.

关键词： Peptides

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A ring-like accretion structure in M87 connecting its black hole and jet

arXiv

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arXiv 2023年

作者： Lu, Ru-Sen Asada, Keiichi Krichbaum, Thomas P. Park, Jongho Tazaki, Fumie Pu, Hung-Yi Nakamura, Masanori Lobanov, Andrei Hada, Kazuhiro Akiyama, Kazunori Kim, Jae-Young Marti-Vidal, Ivan Gómez, José L. Kawashima, Tomohisa Yuan, Feng Ros, Eduardo Alef, Walter Britzen, Silke Bremer, Michael Broderick, Avery E. Doi, Akihiro Giovannini, Gabriele Giroletti, Marcello Ho, Paul T.P. Honma, Mareki Hughes, David H. Inoue, Makoto Jiang, Wu Kino, Motoki Koyama, Shoko Lindqvist, Michael Liu, Jun Marscher, Alan P. Matsushita, Satoki Nagai, Hiroshi Rottmann, Helge Savolainen, Tuomas Schuster, Karl-Friedrich Shen, Zhi-Qiang de Vicente, Pablo Walker, R. Craig Yang, Hai Zensus, J. Anton Algaba, Juan Carlos Allardi, Alexander Bach, Uwe Berthold, Ryan Bintley, Dan Byun, Do-Young Casadio, Carolina Chang, Shu-Hao Chang, Chih-Cheng Chang, Song-Chu Chen, Chung-Chen Chen, Ming-Tang Chilson, Ryan Chuter, Tim C. Conway, John Crew, Geoffrey B. Dempsey, Jessica T. Dornbusch, Sven Faber, Aaron Friberg, Per García, Javier González Garrido, Miguel Gómez Han, Chih-Chiang Han, Kuo-Chang Hasegawa, Yutaka Herrero-Illana, Ruben Huang, Yau-De Huang, Chih-Wei L. Impellizzeri, Violette Jiang, Homin Jinchi, Hao Jung, Taehyun Kallunki, Juha Kirves, Petri Kimura, Kimihiro Koay, Jun Yi Koch, Patrick M. Kramer, Carsten Kraus, Alex Kubo, Derek Kuo, Cheng-Yu Li, Chao-Te Lin, Lupin Chun-Che Liu, Ching-Tang Liu, Kuan-Yu Lo, Wen-Ping Lu, Li-Ming MacDonald, Nicholas Martin-Cocher, Pierre Messias, Hugo Meyer-Zhao, Zheng Minter, Anthony Nair, Dhanya G. Nishioka, Hiroaki Norton, Timothy J. Nystrom, George Ogawa, Hideo Oshiro, Peter Patel, Nimesh A. Pen, Ue-Li Pidopryhora, Yurii Pradel, Nicolas Raffin, Philippe A. Rao, Ramprasad Ruiz, Ignacio Sanchez, Salvador Shaw, Paul Snow, William Sridharan, T.K. Srinivasan, Ranjani Tercero, Belén Torne, Pablo Traianou, Efthalia Wagner, Jan Walther, Craig Wei, Ta-Shun Yang, Jun Yu, Chen-Yu Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai China Key Laboratory of Radio Astronomy Chinese Academy of Sciences Nanjing China Max-Planck-Institut für Radioastronomie Bonn Germany Institute of Astronomy and Astrophysics Academia Sinica Taipei Taiwan Korea Astronomy and Space Science Institute Daejeon Korea Republic of Simulation Technology Development Department Tokyo Electron Technology Solutions Oshu Japan Mizusawa VLBI Observatory National Astronomical Observatory of Japan Oshu Japan Department of Physics National Taiwan Normal University Taipei Taiwan Center of Astronomy and Gravitation National Taiwan Normal University Taipei Taiwan Department of General Science and Education National Institute of Technology Hachinohe College Hachinohe City Japan Department of Astronomical Science The Graduate University for Advanced Studies SOKENDAI Mitaka Japan Black Hole Initiative Harvard University CambridgeMA United States Massachusetts Institute of Technology Haystack Observatory WestfordMA United States National Astronomical Observatory of Japan Mitaka Japan Department of Astronomy and Atmospheric Sciences Kyungpook National University Daegu Korea Republic of Departament d’Astronomia i Astrofísica Universitat de València Valencia Spain Observatori Astronòmic Universitat de València Valencia Spain Instituto de Astrofísica de Andalucía-CSIC Granada Spain Institute for Cosmic Ray Research The University of Tokyo Chiba Japan Key Laboratory for Research in Galaxies and Cosmology Chinese Academy of Sciences Shanghai China School of Astronomy and Space Sciences University of Chinese Academy of Sciences Beijing China Institut de Radioastronomie Millimétrique Saint Martin d’Hères France Department of Physics and Astronomy University of Waterloo WaterlooON Canada Waterloo Centre for Astrophysics University of Waterloo WaterlooON Canada Perimeter Institute for Theoretical Physics WaterlooON Canada Institute of Space and Astron

The nearby radio galaxy M87 is a prime target for studying black hole accretion and jet formation1,2. Event Horizon Telescope observations of M87 in 2017, at a wavelength of 1.3 mm, revealed a ring-like structure, which was interpreted as gravitationally lensed emission around a central black hole3. Here we report images of M87 obtained in 2018, at a wavelength of 3.5 mm, showing that the compact radio core is spatially resolved. High-resolution imaging shows a ring-like structure of 8. 4!1.1$0.5 Schwarzschild radii in diameter, approximately 50% larger than that seen at 1.3 mm. The outer edge at 3.5 mm is also larger than that at 1.3 mm. This larger and thicker ring indicates a substantial contribution from the accretion flow with absorption effects in addition to the gravitationally lensed ring-like emission. The images show that the edge–brightened jet connects to the accretion flow of the black hole. Close to the black hole, the emission profile of the jet-launching region is wider than the expected profile of a black -hole-driven jet, suggesting the possible presence of a wind associated with the accretion flow. © 2023, CC BY.

关键词： Galaxies

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Non-consistence aggregation-disaggregation technology for battle simulation study of SoS 7

Non-consistence aggregation-disaggregation technology for ba...

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2017 7th International Workshop on Computer science and Engineering, WCSE 2017

作者： Yan, Xuefei Li, Qiang Wang, Xiaolong Liu, Dong Wang, Shoubiao Science and Technology on Complex Electronic System Simulation Laboratory Equipment Academy Beijing China Jiuquan Satellite Launch Centre Jiuquan China

ISBN: (纸本)9789811136719

Multi-Resolution Model and simulation(MRMS) technology is an important Aspect in the complex large system simulation field with important value to decrease model computation complexity to increase the simulation efficiency. Since the bottleneck of the MRMS at the aspect of Model consistence maintenance, aggregation-disaggregation(A/D) algorithm, chained disaggregation problem and so on, this paper proposed a non-consistence A/D MRMS method which won't seek overtop Model consistence and allows cross Resolution interaction at the accept range of caused errors. Introduced the basic idea and the Agent Model with the parameterization A/D algorithm and Battle simulation experiment of Weapon Equipment SoS was took to validate it. The result indicated the ability of performance increase and the simulation errors caused by A/D operation can be controlled, What's more, this technology is easy to realize and so threw away a brick for the development of the MRMS application.

关键词： systems engineering

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Lower bound for transient growth of inclined buoyancy layer

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Applied Mathematics and Mechanics(English Edition) 2017年第6期38卷 779-796页

作者： Xiangming XIONG Jianjun TAO Center for Applied Physics and Technology (CAPT)-MOE Key Laboratory of High Energy Density Physics Simulation (HEDPS) State Key Laboratory for Turbulence and Complex System (SKLTCS)Department of Mechanics and Engineering ScienceCollege ofEngineeringPeking University

The relationship between stabilities of the buoyancy boundary layers along an inclined plate and a vertical plate immersed in a stratified medium is studied theoretically and numerically. The eigenvalue problem of energy stability is solved with the method of descending exponentials. The disturbance energy is found to be able to grow to 11.62 times as large as the initial disturbance energy for Pr = 0.72 when the Grashof number is between the critical Grashof numbers of the energy stability and the linear stability. We prove that, with a weighted energy method, the basic flow of the vertical buoyancy boundary layer is stable to finite-amplitude streamwise-independent disturbances.

关键词： natural convection boundary layer energy method transient growth

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A ring-like accretion structure in M87 connecting its black hole and jet

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Nature 2023年第7958期616卷 686-690页

作者： Ru-Sen Lu Keiichi Asada Thomas P Krichbaum Jongho Park Fumie Tazaki Hung-Yi Pu Masanori Nakamura Andrei Lobanov Kazuhiro Hada Kazunori Akiyama Jae-Young Kim Ivan Marti-Vidal José L Gómez Tomohisa Kawashima Feng Yuan Eduardo Ros Walter Alef Silke Britzen Michael Bremer Avery E Broderick Akihiro Doi Gabriele Giovannini Marcello Giroletti Paul T P Ho Mareki Honma David H Hughes Makoto Inoue Wu Jiang Motoki Kino Shoko Koyama Michael Lindqvist Jun Liu Alan P Marscher Satoki Matsushita Hiroshi Nagai Helge Rottmann Tuomas Savolainen Karl-Friedrich Schuster Zhi-Qiang Shen Pablo de Vicente R Craig Walker Hai Yang J Anton Zensus Juan Carlos Algaba Alexander Allardi Uwe Bach Ryan Berthold Dan Bintley Do-Young Byun Carolina Casadio Shu-Hao Chang Chih-Cheng Chang Song-Chu Chang Chung-Chen Chen Ming-Tang Chen Ryan Chilson Tim C Chuter John Conway Geoffrey B Crew Jessica T Dempsey Sven Dornbusch Aaron Faber Per Friberg Javier González García Miguel Gómez Garrido Chih-Chiang Han Kuo-Chang Han Yutaka Hasegawa Ruben Herrero-Illana Yau-De Huang Chih-Wei L Huang Violette Impellizzeri Homin Jiang Hao Jinchi Taehyun Jung Juha Kallunki Petri Kirves Kimihiro Kimura Jun Yi Koay Patrick M Koch Carsten Kramer Alex Kraus Derek Kubo Cheng-Yu Kuo Chao-Te Li Lupin Chun-Che Lin Ching-Tang Liu Kuan-Yu Liu Wen-Ping Lo Li-Ming Lu Nicholas MacDonald Pierre Martin-Cocher Hugo Messias Zheng Meyer-Zhao Anthony Minter Dhanya G Nair Hiroaki Nishioka Timothy J Norton George Nystrom Hideo Ogawa Peter Oshiro Nimesh A Patel Ue-Li Pen Yurii Pidopryhora Nicolas Pradel Philippe A Raffin Ramprasad Rao Ignacio Ruiz Salvador Sanchez Paul Shaw William Snow T K Sridharan Ranjani Srinivasan Belén Tercero Pablo Torne Efthalia Traianou Jan Wagner Craig Walther Ta-Shun Wei Jun Yang Chen-Yu Yu Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai People's Republic of China. rslu@***. Key Laboratory of Radio Astronomy Chinese Academy of Sciences Nanjing People's Republic of China. rslu@***. Max-Planck-Institut für Radioastronomie Bonn Germany. rslu@***. Institute of Astronomy and Astrophysics Academia Sinica Taipei Taiwan ROC. asada@asiaa.sinica.edu.tw. Max-Planck-Institut für Radioastronomie Bonn Germany. tkrichbaum@mpifr-bonn.mpg.de. Institute of Astronomy and Astrophysics Academia Sinica Taipei Taiwan ROC. Korea Astronomy and Space Science Institute Daejeon Republic of Korea. Simulation Technology Development Department Tokyo Electron Technology Solutions Oshu Japan. Mizusawa VLBI Observatory National Astronomical Observatory of Japan Oshu Japan. Department of Physics National Taiwan Normal University Taipei Taiwan ROC. Center of Astronomy and Gravitation National Taiwan Normal University Taipei Taiwan ROC. Department of General Science and Education National Institute of Technology Hachinohe College Hachinohe City Japan. Max-Planck-Institut für Radioastronomie Bonn Germany. Mizusawa VLBI Observatory National Astronomical Observatory of Japan Oshu Japan. kazuhiro.hada@nao.ac.jp. Department of Astronomical Science The Graduate University for Advanced Studies SOKENDAI Mitaka Japan. kazuhiro.hada@nao.ac.jp. Black Hole Initiative Harvard University Cambridge MA USA. Massachusetts Institute of Technology Haystack Observatory Westford MA USA. National Astronomical Observatory of Japan Mitaka Japan. Department of Astronomy and Atmospheric Sciences Kyungpook National University Daegu Republic of Korea. Departament d'Astronomia i Astrofísica Universitat de València Valencia Spain. Observatori Astronòmic Universitat de València Valencia Spain. Instituto de Astrofísica de Andalucía-CSIC Granada Spain. Institute for Cosmic Ray Research The University of Tokyo Chiba Japan. Shanghai Astronomical Observatory Chinese Academy of S

The nearby radio galaxy M87 is a prime target for studying black hole accretion and jet formation. Event Horizon Telescope observations of M87 in 2017, at a wavelength of 1.3 mm, revealed a ring-like structure, which was interpreted as gravitationally lensed emission around a central black hole. Here we report images of M87 obtained in 2018, at a wavelength of 3.5 mm, showing that the compact radio core is spatially resolved. High-resolution imaging shows a ring-like structure of [Formula: see text] Schwarzschild radii in diameter, approximately 50% larger than that seen at 1.3 mm. The outer edge at 3.5 mm is also larger than that at 1.3 mm. This larger and thicker ring indicates a substantial contribution from the accretion flow with absorption effects, in addition to the gravitationally lensed ring-like emission. The images show that the edge-brightened jet connects to the accretion flow of the black hole. Close to the black hole, the emission profile of the jet-launching region is wider than the expected profile of a black-hole-driven jet, suggesting the possible presence of a wind associated with the accretion flow.

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Viscous Rayleigh-Taylor instability with and without diffusion effect

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Applied Mathematics and Mechanics(English Edition) 2017年第2期38卷 263-270页

作者： Chenyue XIE Jianjun TAO Ji LI Center for Applied Physics and Technology (CAPT)-MOE Key Laboratory of High Energy Density Physics Simulation (HEDPS) State Key Laboratory for Turbulence and Complex System (SKLTCS) Department of Mechanics and Engineering ScienceCollege of Engineering Peking University Department of Engineering University of Cambridge

The approximate but analytical solution of the viscous Rayleigh-Taylor insta- bility （RTI） has been widely used recently in theoretical and numerical investigations due to its clarity. In this paper, a modified analytical solution of the growth rate for the viscous RTI of incompressible fluids is obtained based on an approximate method. Its accuracy is verified numerically to be significantly improved in comparison with the previous one in the whole wave number range for different viscosity ratios and Atwood numbers. Fur- thermore, this solution is expanded for viscous RTI including the concentration-diffusion effect.

关键词： viscous Rayleigh-Taylor instability （RTI） dispersion relation diffusioneffect

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