S. G. Wang - ECUST

S. G. Wang
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S. G. Wang
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ECUST
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Astrophysics of Galaxies (9)
 
Earth and Planetary Astrophysics (6)
 
Cosmology and Nongalactic Astrophysics (4)
 
Mathematics - Combinatorics (4)
 
Physics - Mesoscopic Systems and Quantum Hall Effect (3)
 
Computer Science - Learning (3)
 
Physics - Materials Science (3)
 
Physics - Superconductivity (3)
 
Computer Science - Computation and Language (2)
 
Nuclear Theory (2)
 
Computer Science - Computer Vision and Pattern Recognition (2)
 
Mathematics - Analysis of PDEs (2)
 
High Energy Astrophysical Phenomena (2)
 
Physics - Accelerator Physics (2)
 
Instrumentation and Methods for Astrophysics (2)
 
Physics - Computational Physics (1)
 
Quantum Physics (1)
 
Computer Science - Databases (1)
 
Physics - Atmospheric and Oceanic Physics (1)
 
Physics - Instrumentation and Detectors (1)
 
Quantitative Biology - Biomolecules (1)
 
Computer Science - Artificial Intelligence (1)
 
Quantitative Biology - Quantitative Methods (1)
 
Computer Science - Neural and Evolutionary Computing (1)
 
Computer Science - Human-Computer Interaction (1)
 
Mathematics - Differential Geometry (1)
 
Mathematics - Number Theory (1)
 
Mathematics - Information Theory (1)
 
Statistics - Theory (1)
 
Computer Science - Information Theory (1)
 
Mathematics - Statistics (1)
 
Physics - Soft Condensed Matter (1)
 
Physics - Other (1)
 
Mathematics - Operator Algebras (1)
 
Mathematics - Dynamical Systems (1)
 
Physics - Fluid Dynamics (1)
 
Solar and Stellar Astrophysics (1)
 
Nuclear Experiment (1)
 
High Energy Physics - Experiment (1)
 
Mathematics - Functional Analysis (1)
 
Physics - Chemical Physics (1)

Publications Authored By S. G. Wang

2017Apr
Authors: H. Aihara1, N. Arimoto2, R. Armstrong3, S. Arnouts4, N. A. Bahcall5, S. Bickerton6, J. Bosch7, K. Bundy8, P. L. Capak9, J. H. H. Chan10, M. Chiba11, J. Coupon12, E. Egami13, M. Enoki14, F. Finet15, H. Fujimori16, S. Fujimoto17, H. Furusawa18, J. Furusawa19, T. Goto20, A. Goulding21, J. P. Greco22, J. E. Greene23, J. E. Gunn24, T. Hamana25, Y. Harikane26, Y. Hashimoto27, T. Hattori28, M. Hayashi29, Y. Hayashi30, K. G. Hełminiak31, R. Higuchi32, C. Hikage33, P. T. P. Ho34, B. -C. Hsieh35, K. Huang36, S. Huang37, H. Ikeda38, M. Imanishi39, A. K. Inoue40, K. Iwasawa41, I. Iwata42, A. T. Jaelani43, H. -Y. Jian44, Y. Kamata45, H. Karoji46, N. Kashikawa47, N. Katayama48, S. Kawanomoto49, I. Kayo50, J. Koda51, M. Koike52, T. Kojima53, Y. Komiyama54, A. Konno55, S. Koshida56, Y. Koyama57, H. Kusakabe58, A. Leauthaud59, C. -H. Lee60, L. Lin61, Y. -T. Lin62, R. H. Lupton63, R. Mandelbaum64, Y. Matsuoka65, E. Medezinski66, S. Mineo67, S. Miyama68, H. Miyatake69, S. Miyazaki70, R. Momose71, A. More72, S. More73, Y. Moritani74, T. J. Moriya75, T. Morokuma76, S. Mukae77, R. Murata78, H. Murayama79, T. Nagao80, F. Nakata81, M. Niida82, H. Niikura83, A. J. Nishizawa84, Y. Obuchi85, M. Oguri86, Y. Oishi87, N. Okabe88, Y. Okura89, Y. Ono90, M. Onodera91, M. Onoue92, K. Osato93, M. Ouchi94, P. A. Price95, T. -S. Pyo96, M. Sako97, S. Okamoto98, M. Sawicki99, T. Shibuya100, K. Shimasaku101, A. Shimono102, M. Shirasaki103, J. D. Silverman104, M. Simet105, J. Speagle106, D. N. Spergel107, M. A. Strauss108, Y. Sugahara109, N. Sugiyama110, Y. Suto111, S. H. Suyu112, N. Suzuki113, P. J. Tait114, T. Takata115, M. Takada116, N. Tamura117, M. M. Tanaka118, M. Tanaka119, M. Tanaka120, Y. Tanaka121, T. Terai122, Y. Terashima123, Y. Toba124, J. Toshikawa125, E. L. Turner126, T. Uchida127, H. Uchiyama128, K. Umetsu129, F. Uraguchi130, Y. Urata131, T. Usuda132, Y. Utsumi133, S. -Y. Wang134, W. -H. Wang135, K. C. Wong136, K. Yabe137, Y. Yamada138, H. Yamanoi139, N. Yasuda140, S. Yeh141, A. Yonehara142, S. Yuma143
Affiliations: 1HSC Collaboration, 2HSC Collaboration, 3HSC Collaboration, 4HSC Collaboration, 5HSC Collaboration, 6HSC Collaboration, 7HSC Collaboration, 8HSC Collaboration, 9HSC Collaboration, 10HSC Collaboration, 11HSC Collaboration, 12HSC Collaboration, 13HSC Collaboration, 14HSC Collaboration, 15HSC Collaboration, 16HSC Collaboration, 17HSC Collaboration, 18HSC Collaboration, 19HSC Collaboration, 20HSC Collaboration, 21HSC Collaboration, 22HSC Collaboration, 23HSC Collaboration, 24HSC Collaboration, 25HSC Collaboration, 26HSC Collaboration, 27HSC Collaboration, 28HSC Collaboration, 29HSC Collaboration, 30HSC Collaboration, 31HSC Collaboration, 32HSC Collaboration, 33HSC Collaboration, 34HSC Collaboration, 35HSC Collaboration, 36HSC Collaboration, 37HSC Collaboration, 38HSC Collaboration, 39HSC Collaboration, 40HSC Collaboration, 41HSC Collaboration, 42HSC Collaboration, 43HSC Collaboration, 44HSC Collaboration, 45HSC Collaboration, 46HSC Collaboration, 47HSC Collaboration, 48HSC Collaboration, 49HSC Collaboration, 50HSC Collaboration, 51HSC Collaboration, 52HSC Collaboration, 53HSC Collaboration, 54HSC Collaboration, 55HSC Collaboration, 56HSC Collaboration, 57HSC Collaboration, 58HSC Collaboration, 59HSC Collaboration, 60HSC Collaboration, 61HSC Collaboration, 62HSC Collaboration, 63HSC Collaboration, 64HSC Collaboration, 65HSC Collaboration, 66HSC Collaboration, 67HSC Collaboration, 68HSC Collaboration, 69HSC Collaboration, 70HSC Collaboration, 71HSC Collaboration, 72HSC Collaboration, 73HSC Collaboration, 74HSC Collaboration, 75HSC Collaboration, 76HSC Collaboration, 77HSC Collaboration, 78HSC Collaboration, 79HSC Collaboration, 80HSC Collaboration, 81HSC Collaboration, 82HSC Collaboration, 83HSC Collaboration, 84HSC Collaboration, 85HSC Collaboration, 86HSC Collaboration, 87HSC Collaboration, 88HSC Collaboration, 89HSC Collaboration, 90HSC Collaboration, 91HSC Collaboration, 92HSC Collaboration, 93HSC Collaboration, 94HSC Collaboration, 95HSC Collaboration, 96HSC Collaboration, 97HSC Collaboration, 98HSC Collaboration, 99HSC Collaboration, 100HSC Collaboration, 101HSC Collaboration, 102HSC Collaboration, 103HSC Collaboration, 104HSC Collaboration, 105HSC Collaboration, 106HSC Collaboration, 107HSC Collaboration, 108HSC Collaboration, 109HSC Collaboration, 110HSC Collaboration, 111HSC Collaboration, 112HSC Collaboration, 113HSC Collaboration, 114HSC Collaboration, 115HSC Collaboration, 116HSC Collaboration, 117HSC Collaboration, 118HSC Collaboration, 119HSC Collaboration, 120HSC Collaboration, 121HSC Collaboration, 122HSC Collaboration, 123HSC Collaboration, 124HSC Collaboration, 125HSC Collaboration, 126HSC Collaboration, 127HSC Collaboration, 128HSC Collaboration, 129HSC Collaboration, 130HSC Collaboration, 131HSC Collaboration, 132HSC Collaboration, 133HSC Collaboration, 134HSC Collaboration, 135HSC Collaboration, 136HSC Collaboration, 137HSC Collaboration, 138HSC Collaboration, 139HSC Collaboration, 140HSC Collaboration, 141HSC Collaboration, 142HSC Collaboration, 143HSC Collaboration

Hyper Suprime-Cam (HSC) is a wide-field imaging camera on the prime focus of the 8.2m Subaru telescope on the summit of Maunakea. A team of scientists from Japan, Taiwan and Princeton University is using HSC to carry out a 300-night multi-band imaging survey of the high-latitude sky. Read More

The cold classical Kuiper belt objects have low inclinations and eccentricities and are the only Kuiper belt population suspected to have formed in situ. Compared with the dynamically excited populations, which exhibit a broad range of colours and a low binary fraction of ~10% cold classical Kuiper belt objects typically have red optical colours with ~30% of the population found in binary pairs; the origin of these differences remains unclear. We report the detection of a population of blue-coloured, tenuously bound binaries residing among the cold classical Kuiper belt objects. Read More

We present Lya and UV-nebular emission line properties of bright Lya emitters (LAEs) at z=6-7 with a luminosity of log L_Lya/[erg s-1] = 43-44 identified in the 21-deg2 area of the SILVERRUSH early sample developed with the Subaru Hyper Suprime-Cam (HSC) survey data. Our optical spectroscopy newly confirm 21 bright LAEs with clear Lya emission, and contribute to make a spectroscopic sample of 97 LAEs at z=6-7 in SILVERRUSH. From the spectroscopic sample, we select 7 remarkable LAEs as bright as Himiko and CR7 objects, and perform deep Keck/MOSFIRE and Subaru/nuMOIRCS near-infrared spectroscopy reaching the 3sigma-flux limit of ~ 2x10^{-18} erg s-1 for the UV-nebular emission lines of He II1640, C IV1548,1550, and O III]1661,1666. Read More

We present ten $R$-band photometric observations of eight different transits of the hot Jupiter HAT-P-33b, which has been targeted by our Transiting Exoplanet Monitoring Project (TEMP). The data were obtained by two telescopes at the Xinglong Station of National Astronomical Observatories of China (NAOC) from 2013 December through 2016 January, and exhibit photometric scatter of $1.6-3. Read More

We study the problem of variable selection for linear models under the high dimensional asymptotic setting, where the number of observations n grows at the same rate as the number of predictors p. We consider two stage variable selection techniques (TVS) in which the first stage uses bridge estimators to obtain an estimate of the regression coefficients, and the second stage simply thresholds the regression coefficients estimate to select the "important" predictors. The asymptotic false discovery proportion (AFDP) and true positive proportion (ATPP) of these TVS are evaluated. Read More

Fish, birds, insects and robots frequently swim or fly in groups. During their 3 dimensional collective motion, these agents do not stop, they avoid collisions by strong short-range repulsion, and achieve group cohesion by weak long-range attraction. In a minimal model that is isotropic, and continuous in both space and time, we demonstrate that (i) adjusting speed to a preferred value, combined with (ii) radial repulsion and an (iii) effective long-range attraction are sufficient for the stable ordering of autonomously moving agents in space. Read More

The main objective of this article is to study the nonlinear stability and dynamic transitions of the basic (zonal) shear flows for the three-dimensional continuously stratified rotating Boussinesq model. The model equations are fundamental equations in geophysical fluid dynamics, and dynamics associated with their basic zonal shear flows play a crucial role in understanding many important geophysical fluid dynamical processes, such as the meridional overturning oceanic circulation and the geophysical baroclinic instability. In this paper, first we derive a threshold for the energy stability of the basic shear flow, and obtain a criteria for nonlinear stability in terms of the critical horizontal wavenumbers and the system parameters such as the Froude number, the Rossby number, the Prandtl number and the strength of the shear flow. Read More

We study the electric transport properties of Lix(NH3)yFe2(TezSe1-z)2 single crystals with z = 0 and 0.6 in the mixed state. Thermally-activated flux-flow, vortex glass and flux-flow Hall effect (FFHE) behaviors are observed. Read More

2017May
Affiliations: 1Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences

GC-1 and GC-2 are two globular clusters (GCs) in the remote halo of M81 and M82 in the M81 group discovered by Jang et al. using the {\it Hubble Space Telescope} ({\it HST}) images. These two GCs were observed as part of the Beijing--Arizona--Taiwan--Connecticut (BATC) Multicolor Sky Survey, using 14 intermediate-band filters covering a wavelength range of 4000--10000 \AA. Read More

Many types of topological indices such as degree-based topological indices, distance-based topological indices and counting related topological indices are explored during past recent years. Among degree based topological indices, Zagreb indices are the oldest one and studied well. In the paper, we define a generalized multiplicative version of these indices and compute exact formulas for Polycyclic Aromatic Hydrocarbons and Jagged-Rectangle Benzenoid Systems. Read More

The recent progress and development of deep generative models have led to remark- able improvements in research topics in computer vision and machine learning. In this paper, we address the task of cross-domain feature disentanglement. We advance the idea of unsupervised domain adaptation and propose to perform joint feature disentanglement and adaptation. Read More

Nonsymmorphic symmetries, which involve fractional lattice translations in crystalline materials, can generate exotic types of fermionic excitations that are robust against spin-orbit coupling. Here we report on a hourglass-type dispersion in the bulk of three-dimensional rhenium dioxide crystals, as dictated by its nonsymmorphic symmetries. Due to time reversal and inversion symmetries, each band has an additional two-fold degeneracy, making the neck crossing-point of the hourglass four-fold degenerate. Read More

The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is currently the deepest wide- field survey in progress. The 8.2 m aperture of Subaru telescope is very powerful in detect- ing faint/small moving objects, including near-Earth objects, asteroids, centaurs and Tran- Neptunian objects (TNOs). Read More

In this paper we collect 19 hydrogen-deficient superluminous supernovae (SLSNe) and fit their light curves, temperature evolution, and velocity evolution based on the magnetar-powered model. To obtain the best-fitting parameters, we incorporate the Markov Chain Monte Carlo approach. We get rather good fits for 7 events ($\chi^2$/d. Read More

The extraction system of CSNS mainly consists of two kinds of magnets: eight kickers and one lambertson magnet. In this paper, firstly, the magnetic test results of the eight kickers were introduced and then the filed uniformity and magnetizing relationship of the kickers were given. Secondly, during the beam commissioning in the future, in order to obtain more accurate magnetizing relationship, a new method to measure the magnetizing coefficients of the kickers by the real extraction beam was given and the data analysis would also be processed. Read More

The 10 MeV accelerator-driven subcritical system (ADS) Injector-I test stand at Institute of High Energy Physics (IHEP) is a testing facility dedicated to demonstrate one of the two injector design schemes [Injector Scheme-I, which works at 325 MHz], for the ADS project in China. The Injector adopted a four vane copper structure RFQ with output energy of 3.2 MeV and a superconducting (SC) section accommodating fourteen \b{eta}g=0. Read More

This paper concerns the initial-boundary value problem to 2D micropolar equations without angular viscosity in a smooth bounded domain. It is shown that such a system admits a unique and global weak solution. The main idea of this paper is to fully exploit the structure of this system and establish high order estimates via introducing an auxiliary field which is at the energy level of one order lower than micro-rotation. Read More

For a molecular graph, the first multiplicative Zagreb index $\Pi_1$ is equal to the product of the square of the degree of the vertices, while the second multiplicative Zagreb index $\Pi_2$ is equal to the product of the endvertex degree of each edge over all edges. Denote by $\mathbb{G}_{n,k}$ the set of graphs with $n$ vertices and $k$ cut edges. In this paper, we explore graphs in terms of a number of cut edges. Read More

This paper is devoted to the study of noncommutative maximal inequalities and ergodic theorems associated with doubling conditions. We first establish a noncommutative Calder\'{o}n transference principle for actions by amenable groups. Also we obtain the Hardy-Littlewood maximal inequality on doubling metric spaces for the operator-valued setting. Read More

The deformation evolution of giant dipole resonance (GDR), in the chains of Sm and Nd isotopes, are investigated in the framework of an extended quantum molecular dynamics (EQMD) model. The mass number dependence of resonance peak position $(E_{m})$ in the major and minor axis directions of deformed nuclei as well as the difference $\Delta E_{m}$ between them are described in detail. The correlation between the splitting ($\Delta E_{m} /\bar{E}_m $) of the GDR spectra and the deformation($ \beta_{2}$) is further studied. Read More

2017May
Authors: M. Ablikim, M. N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht, D. J. Ambrose, A. Amoroso, F. F. An, Q. An, J. Z. Bai, R. Baldini Ferroli, Y. Ban, D. W. Bennett, J. V. Bennett, M. Bertani, D. Bettoni, J. M. Bian, F. Bianchi, E. Boger, I. Boyko, R. A. Briere, H. Cai, X. Cai, O. Cakir, A. Calcaterra, G. F. Cao, S. A. Cetin, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, H. Y. Chen, J. C. Chen, M. L. Chen, S. J. Chen, X. Chen, X. R. Chen, Y. B. Chen, H. P. Cheng, X. K. Chu, G. Cibinetto, H. L. Dai, J. P. Dai, A. Dbeyssi, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, Y. Ding, C. Dong, J. Dong, L. Y. Dong, M. Y. Dong, S. X. Du, P. F. Duan, E. E. Eren, J. Z. Fan, J. Fang, S. S. Fang, X. Fang, Y. Fang, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, E. Fioravanti, M. Fritsch, C. D. Fu, Q. Gao, X. Y. Gao, Y. Gao, Z. Gao, I. Garzia, C. Geng, K. Goetzen, W. X. Gong, W. Gradl, M. Greco, M. H. Gu, Y. T. Gu, Y. H. Guan, A. Q. Guo, L. B. Guo, Y. Guo, Y. P. Guo, Z. Haddadi, A. Hafner, S. Han, Y. L. Han, X. Q. Hao, F. A. Harris, K. L. He, Z. Y. He, T. Held, Y. K. Heng, Z. L. Hou, C. Hu, H. M. Hu, J. F. Hu, T. Hu, Y. Hu, G. M. Huang, G. S. Huang, H. P. Huang, J. S. Huang, X. T. Huang, Y. Huang, T. Hussain, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, L. L. Jiang, L. W. Jiang, X. S. Jiang, X. Y. Jiang, J. B. Jiao, Z. Jiao, D. P. Jin, S. Jin, T. Johansson, A. Julin, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, M. Kavatsyuk, B. C. Ke, P. Kiese, R. Kliemt, B. Kloss, O. B. Kolcu, B. Kopf, M. Kornicer, W. Kuehn, A. Kupsc, J. S. Lange, M. Lara, P. Larin, C. Leng, C. Li, C. H. Li, Cheng Li, D. M. Li, F. Li, G. Li, H. B. Li, J. C. Li, Jin Li, K. Li, K. Li, Lei Li, P. R. Li, T. Li, W. D. Li, W. G. Li, X. L. Li, X. M. Li, X. N. Li, X. Q. Li, Z. B. Li, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, D. X. Lin, B. J. Liu, C. X. Liu, F. H. Liu, Fang Liu, Feng Liu, H. B. Liu, H. H. Liu, H. H. Liu, H. M. Liu, J. Liu, J. B. Liu, J. P. Liu, J. Y. Liu, K. Liu, K. Y. Liu, L. D. Liu, P. L. Liu, Q. Liu, S. B. Liu, X. Liu, X. X. Liu, Y. B. Liu, Z. A. Liu, Zhiqiang Liu, Zhiqing Liu, H. Loehner, X. C. Lou, H. J. Lu, J. G. Lu, R. Q. Lu, Y. Lu, Y. P. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, M. Lv, X. R. Lyu, F. C. Ma, H. L. Ma, L. L. Ma, Q. M. Ma, T. Ma, X. N. Ma, X. Y. Ma, F. E. Maas, M. Maggiora, Y. J. Mao, Z. P. Mao, S. Marcello, J. G. Messchendorp, J. Min, T. J. Min, R. E. Mitchell, X. H. Mo, Y. J. Mo, C. Morales Morales, K. Moriya, N. Yu. Muchnoi, H. Muramatsu, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, S. L. Niu, X. Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, P. Patteri, M. Pelizaeus, H. P. Peng, K. Peters, J. Pettersson, J. L. Ping, R. G. Ping, R. Poling, V. Prasad, Y. N. Pu, M. Qi, S. Qian, C. F. Qiao, L. Q. Qin, N. Qin, X. S. Qin, Y. Qin, Z. H. Qin, J. F. Qiu, K. H. Rashid, C. F. Redmer, H. L. Ren, M. Ripka, G. Rong, Ch. Rosner, X. D. Ruan, V. Santoro, A. Sarantsev, M. Savrié, K. Schoenning, S. Schumann, W. Shan, M. Shao, C. P. Shen, P. X. Shen, X. Y. Shen, H. Y. Sheng, W. M. Song, X. Y. Song, S. Sosio, S. Spataro, G. X. Sun, J. F. Sun, S. S. Sun, Y. J. Sun, Y. Z. Sun, Z. J. Sun, Z. T. Sun, C. J. Tang, X. Tang, I. Tapan, E. H. Thorndike, M. Tiemens, M. Ullrich, I. Uman, G. S. Varner, B. Wang, B. L. Wang, D. Wang, D. Y. Wang, K. Wang, L. L. Wang, L. S. Wang, M. Wang, P. Wang, P. L. Wang, S. G. Wang, W. Wang, X. F. Wang, Y. D. Wang, Y. F. Wang, Y. Q. Wang, Z. Wang, Z. G. Wang, Z. H. Wang, Z. Y. Wang, T. Weber, D. H. Wei, J. B. Wei, P. Weidenkaff, S. P. Wen, U. Wiedner, M. Wolke, L. H. Wu, Z. Wu, L. G. Xia, Y. Xia, D. Xiao, H. Xiao, Z. J. Xiao, Y. G. Xie, Q. L. Xiu, G. F. Xu, L. Xu, Q. J. Xu, Q. N. Xu, X. P. Xu, L. Yan, W. B. Yan, W. C. Yan, Y. H. Yan, H. J. Yang, H. X. Yang, L. Yang, Y. Yang, Y. X. Yang, H. Ye, M. Ye, M. H. Ye, J. H. Yin, B. X. Yu, C. X. Yu, H. W. Yu, J. S. Yu, C. Z. Yuan, W. L. Yuan, Y. Yuan, A. Yuncu, A. A. Zafar, A. Zallo, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. Zhang, C. C. Zhang, D. H. Zhang, H. H. Zhang, H. Y. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, J. Y. Zhang, J. Z. Zhang, K. Zhang, L. Zhang, S. H. Zhang, X. Y. Zhang, Y. Zhang, Y. N. Zhang, Y. H. Zhang, Y. T. Zhang, Yu Zhang, Z. H. Zhang, Z. P. Zhang, Z. Y. Zhang, G. Zhao, J. W. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, Q. Zhao, Q. W. Zhao, S. J. Zhao, T. C. Zhao, Y. B. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, L. Zhou, Li Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, K. Zhu, K. J. Zhu, S. Zhu, X. L. Zhu, Y. C. Zhu, Y. S. Zhu, Z. A. Zhu, J. Zhuang, L. Zotti, B. S. Zou, J. H. Zou

Using a data set of 2.93 fb$^{-1}$ taken at a center-of-mass energy $\sqrt{s}$ = 3.773 GeV with the BESIII detector at the BEPCII collider, we perform a search for an extra U(1) gauge boson, also denoted as a dark photon. Read More

We report identification of the optical counterpart to the companion of the millisecond pulsar J2317+1439. At the timing position of the pulsar, we find an object with $g=22.96\pm0. Read More

The missing hole packets near the Brillouin zone center render unique electronic structures to the heavily electron doped FeSe-based superconductors with Tc above 40 K. It challenges the existing scenario accounting for the nature of superconductivity in the iron-based family. Yet, one hurdle that has to be overcome is the materials complexity in the rather limited number of compounds. Read More

We prove that, for all positive integers $n_1, \ldots, n_m$, $n_{m+1}=n_1$, and non-negative integers $j$ and $r$ with $j\leqslant m$, the following two expressions \begin{align*} &\frac{1}{[n_1+n_m+1]}{n_1+n_{m}\brack n_1}^{-1}\sum_{k=0}^{n_1} q^{j(k^2+k)-(2r+1)k}[2k+1]^{2r+1}\prod_{i=1}^m {n_i+n_{i+1}+1\brack n_i-k},\\[5pt] &\frac{1}{[n_1+n_m+1]}{n_1+n_{m}\brack n_1}^{-1}\sum_{k=0}^{n_1}(-1)^k q^{{k\choose 2}+j(k^2+k)-2rk}[2k+1]^{2r+1}\prod_{i=1}^m {n_i+n_{i+1}+1\brack n_i-k} \end{align*} are Laurent polynomials in $q$ with integer coefficients, where $[n]=1+q+\cdots+q^{n-1}$ and ${n\brack k}=\prod_{i=1}^k(1-q^{n-i+1})/(1-q^i)$. This gives a $q$-analogue of some divisibility results of sums and alternating sums involving binomial coefficients and powers of integers obtained by Guo and Zeng. We also confirm some related conjectures of Guo and Zeng by establishing their $q$-analogues. Read More

Predicting large-scale transportation network traffic has become an important and challenging topic in recent decades. Inspired by the domain knowledge of motion prediction, in which the future motion of an object can be predicted based on previous scenes, we propose a network grid representation method that can retain the fine-scale structure of a transportation network. Network-wide traffic speeds are converted into a series of static images and input into a novel deep architecture, namely, spatiotemporal recurrent convolutional networks (SRCNs), for traffic forecasting. Read More

The Bose-Einstein condensation of $\alpha$ partciles in the multicomponent environment of dilute, warm nuclear matter is studied. We consider the cases of matter composed of light clusters with mass numbers $A\leq 4$ and matter that in addition these clusters contains $\isotope[56]{Fe}$ nuclei. We apply the quasiparticle gas model which treats clusters as bound states with infinite life-time and binding energies independent of temperature and density. Read More

The rapid emergence of electric vehicles (EVs) demands an advanced infrastructure of publicly accessible charging stations that provide efficient charging services. In this paper, we propose a new charging station operation mechanism, the JoAP, which jointly optimizes the EV admission control, pricing, and charging scheduling to maximize the charging station's profit. More specifically, by introducing a tandem queueing network model, we analytically characterize the average charging station profit as a function of the admission control and pricing policies. Read More

Nodal loop appears when two bands, typically one electron-like and one hole-like, are crossing each other linearly along a one-dimensional manifold in the reciprocal space. Here we propose a new type of nodal loop which emerges from crossing between two bands which are both electron-like (or hole-like) along certain direction. Close to any point on such loop (dubbed as a type-II nodal loop), the linear spectrum is strongly tilted and tipped over along one transverse direction, leading to marked differences in magnetic, optical, and transport responses compared with the conventional (type-I) nodal loops. Read More

For highly interested organolead perovskite based solar cells, the photoproducts are regarded as the co-existed exciton and free carriers. In this study, we carefully re-examined this conclusion with our recently developed density-resolved spectroscopic method. Heat-annealing related two photoproduct systems are observed. Read More

We present the Ly$\alpha$ luminosity functions (LFs) at $z=$5.7 and 6.6 derived from a new large sample of 2,354 Ly$\alpha$ emitters (LAEs) identified in total areas of 14 and 21 deg$^2$, respectively, based on the early narrowband data of the Subaru/Hyper Suprime-Cam (HSC) survey. Read More

Hopf insulators are intriguing three-dimensional topological insulators characterized by an integer topological invariant. They originate from the mathematical theory of Hopf fibration and epitomize the deep connection between knot theory and topological phases of matter, which distinguishes them from other classes of topological insulators. Here, we implement a model Hamiltonian for Hopf insulators in a solid-state quantum simulator and report the first experimental observation of their topological properties, including fascinating topological links associated with the Hopf fibration and the integer-valued topological invariant obtained from a direct tomographic measurement. Read More

We present a visible multi-band photometry of trans-Neptunian objects (TNOs) observed by the Subaru Telescope in the framework of Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) from March in 2014 to September in 2016. We measured the five broad-band (g, r, i, z, and Y) colors over the wavelength range from 0.4 um to 1. Read More

For a (molecular) graph, the first multiplicative Zagreb index $\prod_1(G) $ is the product of the square of every vertex degree, and the second multiplicative Zagreb index $\prod_2(G) $ is the product of the products of degrees of pairs of adjacent vertices. In this paper, we explore graphs in terms of (edge) connectivity. The maximum and minimum values of $\prod_1(G) $ and $\prod_2(G) $ of graphs with connectivity at most $k$ are provided. Read More

We show that if the entropy of any closed hypersurface is close to that of a round hyper-sphere, then it is close to a round sphere in Hausdorff distance. Generalizing the result of \cite{BW1} to higher dimensions. Read More

This paper provides an overview of the on-going compact descriptors for video analysis standard (CDVA) from the ISO/IEC moving pictures experts group (MPEG). MPEG-CDVA targets at defining a standardized bitstream syntax to enable interoperability in the context of video analysis applications. During the developments of MPEGCDVA, a series of techniques aiming to reduce the descriptor size and improve the video representation ability have been proposed. Read More

Computational prediction of membrane protein (MP) structures is very challenging partially due to lack of sufficient solved structures for homology modeling. Recently direct evolutionary coupling analysis (DCA) sheds some light on protein contact prediction and accordingly, contact-assisted folding, but DCA is effective only on some very large-sized families since it uses information only in a single protein family. This paper presents a deep transfer learning method that can significantly improve MP contact prediction by learning contact patterns and complex sequence-contact relationship from thousands of non-membrane proteins (non-MPs). Read More

Our goal is to create a convenient natural language interface for performing well-specified but complex actions such as analyzing data, manipulating text, and querying databases. However, existing natural language interfaces for such tasks are quite primitive compared to the power one wields with a programming language. To bridge this gap, we start with a core programming language and allow users to "naturalize" the core language incrementally by defining alternative, more natural syntax and increasingly complex concepts in terms of compositions of simpler ones. Read More

We study the UV luminosity functions (LFs) at $z\sim 4$, $5$, $6,$ and $7$ based on the deep large-area optical images taken by the Hyper Suprime-Cam (HSC) Subaru strategic program (SSP). On the 100 deg$^2$ sky of the HSC SSP data available to date, we make enormous samples consisting of a total of 579,555 dropout candidates at $z\sim 4-7$ by the standard color selection technique, 348 out of which are spectroscopically confirmed by our follow-up spectroscopy and the other studies. We obtain the UV LFs at $z \sim 4-7$ that span a very wide UV luminosity range of $\sim 0. Read More

The machine learning techniques are widely applied in many modern optical sky surveys, i.e. Pan-STARRS1, PTF/iPTF and Subaru/Hyper Suprime-Cam survey, to reduce the human intervention for data verification. Read More

2017Apr
Affiliations: 1SOKENDAI, Japan, 2NAOJ, Japan, 3SOKENDAI, Japan, 4Observatorio Nacional, Brazil, 5Johns Hopkins University, USA, 6NAOJ, Japan, 7NAOJ, Japan, 8SOKENDAI, Japan, 9SOKENDAI, Japan, 10NAOJ, Japan, 11Tohoku University, Japan, 12University of Geneva, Switzerland, 13Institute for Cosmic Ray Research, The University of Tokyo, Japan, 14SOKENDAI, Japan, 15SOKENDAI, Japan, 16SOKENDAI, Japan, 17NAOJ, USA, 18ASSIA, Taiwan, 19SOKENDAI, Japan, 20Ehime University, Japan, 21Nagoya University, Japan, 22Institute for Cosmic Ray Research, The University of Tokyo, Japan, 23Institute for Cosmic Ray Research, The University of Tokyo, Japan, 24Princeton University, USA, 25ASSIA, Taiwan

We present the cross-correlation between 151 luminous quasars ($M_{ \mathrm{UV}} < -26$) and 179 protocluster candidates at $z \sim 3.8$, extracted from the Wide imaging survey ($ \sim 121~ $deg$^2$) performed with a part of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). We find that only two out of 151 quasars reside in regions that are more overdense compared to the average field at $ > 4 \sigma $. Read More

We present the results from a search for new Milky Way (MW) satellites from the first two years of data from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) $\sim 300$~deg$^2$ and report the discovery of an ultra-faint dwarf galaxy in Cetus. This is the second ultra-faint dwarf we have discovered after Virgo~I reported in our previous paper. This new satellite, Cetus~III, has been identified as a statistically significant (10. Read More

The main objective of this article is to derive a mathematical theory associated with the nonlinear stability and dynamic transitions of the basic shear flows associated with baroclinic instability, which plays a fundamental role in the dominant mechanism shaping the cyclones and anticyclones that dominate weather in mid-latitudes, as well as the mesoscale eddies that play various roles in oceanic dynamics and the transport of tracers. This article provides a general transition and stability theory for the two-layer quasi-geostrophic model originally derived by Pedlosky \cite{ped1970}. We show that the instability and dynamic transition of the basic shear flow occur only when the Froude number $F>(\gamma^2+1)/2$, where $\gamma$ is the weave number of lowest zonal harmonic. Read More

We proposed a novel and simple multilayer structure to realize the deterministic switching of perpendicularly magnetized layers (Co in our work) by spin orbital torque from the spin Hall Effect in this paper. A pinned layer is introduced, antiferromagnetically coupled to the magnetic Co layer. We have confirmed the deterministic switching of perpendicularly magnetized layers from perspectives of switching loops, trajectories and switching properties under periodic spin currents through micromagnetic simulation. Read More

The newly detected TRAPPIST-1 system, with seven low-mass, roughly Earth-sized planets transiting a nearby ultra-cool dwarf, is one of the most important exoplanet discoveries to date. The short baseline of the available discovery observations, however, means that the planetary masses (obtained through measurement of transit timing variations of the planets of the system) are not yet well constrained. The masses reported in the discovery paper were derived using a combination of photometric timing measurements obtained from the ground and from the Spitzer spacecraft, and have uncertainties ranging from 30\% to nearly 100\%, with the mass of the outermost, $P=18. Read More

We test whether distributional models can do one-shot learning of definitional properties from text only. Using Bayesian models, we find that first learning overarching structure in the known data, regularities in textual contexts and in properties, helps one-shot learning, and that individual context items can be highly informative. Read More

The STAR experiment at RHIC is planning to upgrade the Time Projection Chamber which lies at the heart of the detector. We have designed an instrument to measure the tension of the wires in the multi-wire proportional chambers (MWPCs) which will be used in the TPC upgrade. The wire tension measurement system causes the wires to vibrate and then it measures the fundamental frequency of the oscillation via a laser based optical platform. Read More

GPS enables mobile devices to continuously provide new opportunities to improve our daily lives. For example, the data collected in applications created by Uber or Public Transport Authorities can be used to plan transportation routes, estimate capacities, and proactively identify low coverage areas. In this paper, we study a new kind of query-Reverse k Nearest Neighbor Search over Trajectories (RkNNT), which can be used for route planning and capacity estimation. Read More