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arXiv 2020年

作者： Akutsu, T. Ando, M. Arai, K. Arai, Y. Araki, S. Araya, A. Aritomi, N. Asada, H. Aso, Y. Bae, S. Bae, Y. Baiotti, L. Bajpai, R. Barton, M.A. Cannon, K. Cao, Z. Capocasa, E. Chan, M. Chen, C. Chen, K. Chen, Y. Chiang, C.-Y. Chu, H. Chu, Y.-K. Eguchi, S. Enomoto, Y. Flaminio, R. Fujii, Y. Fujikawa, F. Fukunaga, M. Fukushima, M. Gao, D. Ge, G. Ha, S. Hagiwara, A. Haino, S. Han, W.-B. Hasegawa, K. Hattori, K. Hayakawa, H. Hayama, K. Himemoto, Y. Hiranuma, Y. Hirata, N. Hirose, E. Hong, Z. Hsieh, B.H. Huang, C.-Z. Huang, H.-Y. Huang, P. Huang, Y.-C. Huang, Y. Hui, D.C.Y. Ide, S. Ikenoue, B. Imam, S. Inayoshi, K. Inoue, Y. Ioka, K. Ito, K. Itoh, Y. Izumi, K. Jeon, C. Jin, H.-B. Jung, K. Jung, P. Kaihotsu, K. Kajita, T. Kakizaki, M. Kamiizumi, M. Kanda, N. Kang, G. Kashiyama, K. Kawaguchi, K. Kawai, N. Kawasaki, T. Kim, C. Kim, J. Kim, J.C. Kim, W.S. Kim, Y.-M. Kimura, N. Kita, N. Kitazawa, H. Kojima, Y. Kokeyama, K. Komori, K. Kong, A.K.H. Kotake, K. Kozakai, C. Kozu, R. Kumar, R. Kume, J. Kuo, C. Kuo, H.-S. Kuromiya, Y. Kuroyanagi, S. Kusayanagi, K. Kwak, K. Lee, H.K. Lee, H.W. Lee, R. Leonardi, M. Li, T.G.F. Li, K.L. Lin, L.C.-C. Lin, C.-Y. Lin, F.-K. Lin, F.-L. Lin, H.L. Liu, G.C. Luo, L.-W. Majorana, E. Marchio, M. Michimura, Y. Mio, N. Miyakawa, O. Miyamoto, A. Miyazaki, Y. Miyo, K. Miyoki, S. Mori, Y. Morisaki, S. Moriwaki, Y. Nagano, K. Nagano, S. Nakamura, K. Nakano, H. Nakano, M. Nakashima, R. Nakayama, Y. Narikawa, T. Naticchioni, L. Negishi, R. Nguyen Quynh, L. Ni, W.-T. Nishizawa, Atsushi Nozaki, S. Obuchi, Y. Ogaki, W. Oh, J.J. Oh, K. Oh, S.H. Ohashi, M. Ohishi, N. Ohkawa, M. Ohta, H. Okutani, Y. Okutomi, K. Oohara, K. Ooi, C.P. Oshino, S. Otabe, S. Pan, K. Pang, H. Parisi, A. Park, J. Peña Arellano, F.E. Pinto, I. Sago, N. Saito, S. Saito, Y. Sakai, K. Sakai, Y. Sakuno, Y. Sato, S. Sato, T. Sawada, T. Mitaka City Tokyo181-8588 Japan Mitaka City Tokyo181-8588 Japan Department of Physics University of Tokyo Bunkyo-ku Tokyo113-0033 Japan University of Tokyo Bunkyo-ku Tokyo113-0033 Japan KAGRA Observatory University of Tokyo Kashiwa City Chiba277-8582 Japan Tsukuba City Ibaraki305-0801 Japan Earthquake Research Institute University of Tokyo Bunkyo-ku Tokyo113-0032 Japan Department of Mathematics and Physics Hirosaki University Hirosaki City Aomori036-8561 Japan Kamioka-cho Hida City Gifu506-1205 Japan Mitaka City Tokyo181-8588 Japan Yuseong-gu Daejeon34141 Korea Republic of National Institute for Mathematical Sciences Daejeon34047 Korea Republic of International College Osaka University Toyonaka City Osaka560-0043 Japan Tsukuba City Ibaraki305-0801 Japan Department of Astronomy Beijing Normal University Beijing100875 China Department of Applied Physics Fukuoka University Jonan Fukuoka City Fukuoka814-0180 Japan Department of Physics Tamkang University Danshui Dist. New Taipei City25137 Taiwan Department of Physics and Institute of Astronomy National Tsing Hua University Hsinchu30013 Taiwan Department of Physics Center for High Energy and High Field Physics National Central University Zhongli District Taoyuan City32001 Taiwan Institute of Physics Academia Sinica Nankang Taipei11529 Taiwan Université Savoie Mont Blanc CNRS/IN2P3 AnnecyF-74941 France Department of Astronomy University of Tokyo Mitaka City Tokyo181-8588 Japan Faculty of Engineering Niigata University Nishi-ku Niigata City Niigata950-2181 Japan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics China Chinese Academy of Sciences Xiao Hong Shan Wuhan430071 China Ulsan44919 Korea Republic of Tsukuba City Ibaraki305-0801 Japan Chinese Academy of Sciences Shanghai Astronomical Observatory Shanghai200030 China Faculty of Science University of Toyama Toyama City Toyama930-8555 Japan KAGRA

KAGRA is a newly build GW observatory, a laser interferometer with 3 km arm length, located in Kamioka, Gifu, Japan. In this paper in the series of KAGRA-featured articles, we discuss the science targets of KAGRA projects, considering not only the baseline KAGRA (current design) but also its future upgrade candidates (KAGRA+) for the near to middle term (∼5 years). Copyright © 2020, The Authors. All rights reserved.

关键词： Interferometers

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Oxidation of benzalkonium chloride by gamma irradiation: kinetics and decrease in toxicity

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Journal of Radioanalytical and Nuclear Chemistry 2017年第3期312卷 631-637页

作者： Zibin Xu Xue Zhang Nan Huang Hong-ying Hu Environmental Simulation and Pollution Control State Key Joint Laboratory State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC) School of Environment Tsinghua University Beijing People’s Republic of China Shenzhen Laboratory of Microorganism Application and Risk Control Graduate School at Shenzhen Tsinghua University Shenzhen People’s Republic of China Collaborative Innovation Center for Advanced Nuclear Energy Technology Institute of Nuclear and New Energy Technology Tsinghua University Beijing People’s Republic of China Shenzhen Environmental Science and New Energy Technology Engineering Laboratory Tsinghua-Berkeley Shenzhen Institute Shenzhen People’s Republic of China

The gamma degradation of toxic non-oxidizing biocide dodecyl dimethyl benzyl ammonium chloride (DDBAC) was investigated. The degradation of DDBAC achieved 70–100% depending on the initial concentration and the absorbed dose, but only 10–33% dissolved organic carbon was removed. The presence of NO3 −, HCO3 −, 2-propanol and tert-butanol inhibited the degradation of DDBAC. The DDBAC degradation rate constant ratios of ·OH, ·H and e aq − was calculated as 7.4:1.4:1. The acute toxicity of 10 mg L−1 DDBAC was removed by 60% at absorbed doses of 0.5–3.0 kGy. The results showed that gamma irradiation was effective to remove DDBAC and its toxicity.

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Identification of pre-microRNAs by characterizing their sequence order evolution information and secondary structure graphs

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BMC bioinformatics 2018年第SUPPL 19期19卷 521页

作者： Yuanlin Ma Zuguo Yu Guosheng Han Jinyan Li Vo Anh Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education and Hunan Key Laboratory for Computation and Simulation in Science and Engineering Xiangtan University Hunan 411105 China. Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education and Hunan Key Laboratory for Computation and Simulation in Science and Engineering Xiangtan University Hunan 411105 China. yuzuguo@***. School of Electrical Engineering and Computer Science Queensland University of Technology GPO Box 2434 Brisbane Q4001 Australia. yuzuguo@***. Advanced Analytics Institute Faculty of Engineering & IT University of Technology Sydney P.O Box 123 Broadway NSW 2007 Australia. School of Mathematical Sciences Queensland University of Technology GPO Box 2434 Brisbane Q4001 Australia.

BACKGROUND:Distinction between pre-microRNAs (precursor microRNAs) and length-similar pseudo pre-microRNAs can reveal more about the regulatory mechanism of RNA biological processes. Machine learning techniques have been widely applied to deal with this challenging problem. However, most of them mainly focus on secondary structure information of pre-microRNAs, while ignoring sequence-order information and sequence evolution information. RESULTS:We use new features for the machine learning algorithms to improve the classification performance by characterizing both sequence order evolution information and secondary structure graphs. We developed three steps to extract these features of pre-microRNAs. We first extract features from PSI-BLAST profiles and Hilbert-Huang transforms, which contain rich sequence evolution information and sequence-order information respectively. We then obtain properties of small molecular networks of pre-microRNAs, which contain refined secondary structure information. These structural features are carefully generated so that they can depict both global and local characteristics of pre-microRNAs. In total, our feature space covers 591 features. The maximum relevance and minimum redundancy (mRMR) feature selection method is adopted before support vector machine (SVM) is applied as our classifier. The constructed classification model is named MicroRNA -NHPred. The performance of MicroRNA -NHPred is high and stable, which is better than that of those state-of-the-art methods, achieving an accuracy of up to 94.83% on same benchmark datasets. CONCLUSIONS:The high prediction accuracy achieved by our proposed method is attributed to the design of a comprehensive feature set on the sequences and secondary structures, which are capable of characterizing the sequence evolution information and sequence-order information, and global and local information of pre-microRNAs secondary structures. MicroRNA -NHPred is a valuable method for pre-microRNAs iden

关键词： Hibert-Huang transform Network PSI-BLAST profiles Pre-microRNA SVM mRMR

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Supercapacitors: Inverted Design for High‐Performance Supercapacitor Via Co(OH)2‐Derived Highly Oriented MOF Electrodes (Adv. Energy Mater. 7/2018)

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advanced Energy Materials 2018年第7期8卷

作者： Ting Deng Yue Lu Wei Zhang Manling Sui Xiaoyuan Shi Dong Wang Weitao Zheng State Key Laboratory of Automotive Simulation and Control Department of Materials Science and Key Laboratory of Mobile Materials MOE Jilin University Changchun 130012 China Institute of Microstructure and Properties of Advanced Materials Beijing University of Technology Beijing 100124 China CIC Energigune Parque Tecnológico de Álava Miñano 01510 and IKERBASQUE Basque Foundation for Science Bilbao 48013 Spain

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Digital predistortion, all-digital transmitter, baseband equivalent model

arXiv

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arXiv 2017年

作者： Lin, De-Ye Song, Haifeng Hui, Xi Dong State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing100083 Institute of Applied Physics and Computational Mathematics Fenghao East Road 2 Beijing100094 CAEP Software Center for High Performance Numerical Simulation Huayuan Road 6 Beijing100088

In this work, a many-body potential of Nb for radiation damage simulation was developed based on embedded-atom-method (EAM), and most of the point defects of Nb can be predicted properly by this potential. By using the constructed potential, the direction-specific threshold displacement energies (TDE) and displacement cascades up to 20 keV of Nb were performed through molecular dynamics simulations. The calculated results of TDE are in good agreement with previous work for V, Mo and experimental measurements. Lowest TDE was found in direction, and local minas of TDE were found in three low-index directions, which has relation:E[100]dE[111]dE[110]d. The evolution of displacement cascades, number of the created point defects, the cascade efficiency the clustering of point defects, and temperature role of these parameters at different PKA energies were systematic investigated. It is found that the cascade efficiency is low and it is can be fitted by a power function as many published work did. The fraction of clustered point defects obtained in this work is low, and only some small clusters were formed at the end of thermal spike. As the temperature increases, the productions of point defects and cascade efficiency were somewhat decreases, however, the fraction of clustered point defects decreases more obvious. Copyright © 2017, The Authors. All rights reserved.

关键词： Molecular dynamics

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Direct evaluation of nuclear data uncertainty propagation in pebble-bed HTR core

Direct evaluation of nuclear data uncertainty propagation in...

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Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016

作者： Wang, Lidong Guo, Jiong Li, Fu Hao, Chen Ivanov, Kostadin Rouxelin, Pascal Institute of Nuclear and New Energy Technology Tsinghua University Collaborative Innovation Center of Advanced Nuclear Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety Ministry of Education Beijing100084 China Fundamental Science on Nuclear Safety and Simulation Technology Laboratory College of Nuclear Science and Technology Harbin Engineering University Harbin China Department of Nuclear Engineering North Carolina State University RaleighNC27607 United States North Carolina State University United States

ISBN: (纸本)9781510825734

Due to the peculiarities of pebble-bed high temperature reactor (HTR), especially the movable core and double heterogeneity characteristics, a reliable uncertainty evaluation method that can take these peculiarities into account is urgently needed. In our work, the VSOP program is used for its effective treatments on the particularity of the pebble-bed HTR and the statistical sampling method is applied to quantify uncertainty propagation in the VSOP model. Since an on-line spectral calculation strategy without separable assembly spectral calculation is used in VSOP, the uncertainty propagation from nuclear data to core effective multiplication factor and power distribution can be directly evaluated. The results are compared to those of SCALE TSUNAMI-3D module for verification. Although the difference of keff between VSOP and TSUNAMI-3D calculation is ∼10%, primarily due to the lack of double heterogeneity treatment in TSUNAMI-3D, the uncertainty results obtained from the two calculations are in good agreement. In addition, the Direct Numerical Perturbation method is used to perform sensitivity analysis and the resulting sensitivity coefficients are consistent. The method proposed in this paper could be used to directly evaluate the effect of nuclear data uncertainty on core key parameters and to help determine pebble-bed HTR design margins.

关键词： Monte Carlo methods

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Effects of Zb states in ϒ (3S, 4S) dipion transitions 17

Effects of Zb states in ϒ (3S, 4S) dipion transitions

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17th International Conference on Hadron Spectroscopy and Structure, Hadron 2017

作者： Chen, Yun-Hua Cleven, Martin Daub, Johanna T. Guo, Feng-Kun Hanhart, Christoph Kubis, Bastian Meißner, Ulf-G Zou, Bing-Song School of Mathematics and Physics University of Science and Technology Beijing Beijing100083 China Departament de Fisica Quantica i Astrofisica Universitat de Barcelona Barcelona08028 Spain Bethe Center for Theoretical Physics Universität Bonn Bonn53115 Germany CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences Beijing100190 China School of Physical Sciences University of Chinese Academy of Sciences Beijing100049 China Institut für Kernphysik Institute for Advanced Simulation Jülich Center for Hadron Physics Forschungszentrum Jülich Jülich52425 Germany

We analyze the effects of the Zb states in the dipion transitions from the ϒ(3S,4S) to the lower ϒ states. It is found that the Zb’s, together with the properly treated ππ final-state interaction, are essential to reproduce the double-bump structure in the dipion invariant mass distribution of the ϒ(3S) →ϒ(1S)ππ transitions. We also point out that a reliable extraction of the Zbϒ(nS)π coupling constants is crucial to finally settle the Zb contributions to these transitions. © Copyright owned by the author(s).

关键词： Spectroscopy

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Graphene Foams: A Bubble‐Derived Strategy to Prepare Multiple Graphene‐Based Porous Materials (Adv. Funct. Mater. 23/2018)

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advanced Functional Materials 2018年第23期28卷

作者： Rujing Zhang Ruirui Hu Xinming Li Zhen Zhen Zhenhua Xu Na Li Limin He Hongwei Zhu Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Material Department 5 P.O. Box 81‐5 AECC Beijing Institute of Aeronautical Materials Beijing 100095 China State Key Lab of New Ceramics and Fine Processing School of Materials Science and Engineering and Center for Nano and Micro Mechanics Tsinghua University Beijing 100084 China International Center for Materials Nanoarchitectonics (WPI‐MANA) National Institute for Materials Science (NIMS) 1‐1 Namiki Tsukuba Ibaraki 305‐0044 Japan

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Microstructure and texture evolution of Mg–3Zn–1Al magnesium alloy during large-strain electroplastic rolling

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International Journal of Minerals,Metallurgy and Materials 2015年第4期22卷 411-416页

作者： Yan-bin Jiang Lei Guan Guo-yi Tang Bo Cheng Da-bo Liu Key Laboratory for Advanced Materials Processing of the Ministry of Education Institute of Advanced Materials and Technology University of Science and Technology Beijing Beijing Institute of Aeronautical Materials Aviation Industry Corporation of China Advanced Materials Institute Graduate School at Shenzhen Tsinghua University

Large-strain deformation by single electroplastic rolling （EPR） was imposed on AZ31 magnesium alloy strips. During EPR at low temperature （150-250℃）, numerous twins formed in the alloy. After EPR at a high temperature （350℃）, the number of twins reduced and some dynamic recrystallization （DRX） grains formed at grain boundaries and twinned regions. The synergic thermal and athermal effects generated by electropulsing, which promoted dislocation motion, induced a few small DRX grains, and ductile bandings were mainly re- sponsible for large-strain deformation during EPR. The inclination angle of the basal pole stemmed from the counterbalance of the inclina- tion direction of the basal pole between the DRX grains and deformed coarse grains.

关键词： magnesium alloys electroplastic rolling microstructure texture recrystallization

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Grain Refinement of CrCoNi Multi-principal-element Alloy

Grain Refinement of CrCoNi Multi-principal-element Alloy

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第十三届全国铸造年会暨2016中国铸造活动周

作者： Liu Xinwang Guillaume Laplanche AleksANDer Kostka Suzana G.Fries Janine Pfetzing-Micklich Liu Gang Fan Zitian Easo P.George Department of Materials Design Ruhr-University Bochum State Key Laboratory of Materials Processing and Die & Mould Technology Huazhong University of Science and Technology Interdisciplinary Centre for Advanced Materials Simulation Ruhr-University Bochum

The equiatomic multi-principal-element alloy, CrCoNi, as a single-phase FCC solid solution, displays excellent strength-toughness properties that exceed those of all high entropy alloys, which is considered as a promising engineering alloy at cryogenic temperatures. Cast, as a common-used method to form complex-shaped components, is a necessary technique for engineering alloys, whereas the cast multi-principal-element alloys have not be systematically investigated previously. Here we study the grain refinement of cast CrCoNi alloy and their corresponding mechanical properties. The alloys were produced by arc melting and drop casting, which are much simpler than the preparation procedures of deformed alloys by cold deformation and recrystallization in the previous studies. The cast CrCoNi alloy consists with anisotropic coarse columnar grains with the average width of more than 210 m. Their microstructures, however, become equiaxed grains after grain modification which exhibit uniform fine equiaxed grains with the size of 76 m nearly throughout the entire ingots. The tensile tests at an engineering strain rate of 10-3 s-1 reveals that yield strength, ultimate tensile strength and elongation to fracture are all improved by grain refinement both at 293 and 77 K. Meanwhile, the cast alloy shows the comparable mechanical properties with the alloys after cold working and recrystallization. The corresponding mechanism was also discussed related to the constitutional supercooling.

关键词： multi-principal-element alloy grain refinement microstructures tensile properties

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