S. H. Kim - Chungnam National University

S. H. Kim
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S. H. Kim
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Chungnam National University
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Physics - Materials Science (9)
 
Astrophysics of Galaxies (7)
 
High Energy Physics - Experiment (6)
 
Solar and Stellar Astrophysics (4)
 
Physics - Mesoscopic Systems and Quantum Hall Effect (3)
 
Instrumentation and Methods for Astrophysics (3)
 
Earth and Planetary Astrophysics (3)
 
Physics - Instrumentation and Detectors (3)
 
Computer Science - Computer Vision and Pattern Recognition (3)
 
Computer Science - Learning (2)
 
Statistics - Machine Learning (2)
 
Computer Science - Computation and Language (2)
 
High Energy Physics - Phenomenology (2)
 
Computer Science - Information Retrieval (2)
 
Quantum Physics (2)
 
Physics - Optics (2)
 
Mathematics - Differential Geometry (2)
 
Nuclear Theory (2)
 
Mathematics - Algebraic Geometry (1)
 
Computer Science - Artificial Intelligence (1)
 
Nuclear Experiment (1)
 
Computer Science - Information Theory (1)
 
Mathematics - Analysis of PDEs (1)
 
Mathematics - Information Theory (1)
 
Quantitative Biology - Neurons and Cognition (1)
 
High Energy Astrophysical Phenomena (1)
 
Physics - Strongly Correlated Electrons (1)
 
Computer Science - Multimedia (1)
 
Computer Science - Networking and Internet Architecture (1)
 
Physics - Statistical Mechanics (1)
 
Mathematics - Geometric Topology (1)
 
Mathematics - Probability (1)
 
Computer Science - Neural and Evolutionary Computing (1)
 
Computer Science - Software Engineering (1)
 
High Energy Physics - Lattice (1)

Publications Authored By S. H. Kim

In this document, the technical details of the JSNS$^2$ (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment are described. The search for sterile neutrinos is currently one of the hottest topics in neutrino physics. The JSNS$^2$ experiment aims to search for the existence of neutrino oscillations with $\Delta m^2$ near 1 eV$^2$ at the J-PARC Materials and Life Science Experimental Facility (MLF). Read More

We theoretically study the oscillatory dynamics of a vortex core in a ferrimagnetic disk near its angular momentum compensation point, where the spin density vanishes but the magnetization is finite. Due to the finite magnetostatic energy, a ferrimagnetic disk of suitable geometry can support a vortex as a ground state similar to a ferromagnetic disk. In the vicinity of the angular momentum compensation point, the dynamics of the vortex resembles that of an antiferromagnetic vortex, which is described by the equations of motion analogous to Newton's second law for the motion of particles. Read More

Co-channel coexistence between Dedicated Short-Range Communications (DSRC) and Wi-Fi needs thorough study. The reason is that although the 5.850-5. Read More

Single photon emitters with narrow linewidths are highly sought after for applications in quantum information processing and quantum communications. In this letter, we report on a bright, highly polarized near infrared single photon emitter embedded in diamond nanocrystals with a narrow, sub GHz optical linewidths at 10K. The observed zero phonon line at ~ 780 nm is optically stable under low power resonant excitation and blue shifts as the excitation power increases. Read More

In this paper we investigate the moduli space of parabolic Higgs bundles over a punctured Riemann surface with varying weights at the punctures. We show that the harmonic metric depends analytically on the weights and the stable Higgs bundle. This gives a Higgs bundle generalisation of a theorem of McOwen on the existence of hyperbolic cone metrics on a punctured surface within a given conformal class, and a generalisation of a theorem of Judge on the analytic parametrisation of these metrics. Read More

An image is a very effective tool for conveying emotions. Many researchers have investigated in computing the image emotions by using various features extracted from images. In this paper, we focus on two high level features, the object and the background, and assume that the semantic information of images is a good cue for emotion prediction. Read More

We present the results of very long baseline interferometry (VLBI) observations of gamma-ray bright blazar S5 0716+714 using the Korean VLBI Network (KVN) at the 22, 43, 86, and 129 GHz bands, as part of the Interferometric Monitoring of Gamma-ray Bright AGNs (iMOGABA) KVN key science program. Observations were conducted in 29 sessions from January 16, 2013 to March 1, 2016, with the source being detected and imaged at all available frequencies. In all epochs, the source was compact on the milliarcsecond (mas) scale, yielding a compact VLBI core dominating the synchrotron emission on these scales. Read More

2017May
Authors: C. E. Aalseth, F. Acerbi, P. Agnes, I. F. M. Albuquerque, T. Alexander, A. Alici, A. K. Alton, P. Ampudia, P. Antonioli, S. Arcelli, R. Ardito, I. J. Arnquist, D. M. Asner, H. O. Back, G. Batignani, E. Bertoldo, S. Bettarini, M. G. Bisogni, V. Bocci, A. Bondar, G. Bonfini, W. Bonivento, M. Bossa, B. Bottino, R. Bunker, S. Bussino, A. Buzulutskov, M. Cadeddu, M. Cadoni, A. Caminata, N. Canci, A. Candela, C. Cantini, M. Caravati, M. Cariello, M. Carlini, M. Carpinelli, A. Castellani, S. Catalanotti, V. Cataudella, P. Cavalcante, R. Cereseto, Y. Chen, A. Chepurnov, A. Chiavassa, C. Cicalò, L. Cifarelli, M. Citterio, A. G. Cocco, M. Colocci, S. Corgiolu, G. Covone, P. Crivelli, I. D'Antone, M. D'Incecco, M. D. Da Rocha Rolo, M. Daniel, S. Davini, A. De Candia, S. De Cecco, M. De Deo, G. De Filippis, G. De Guido, G. De Rosa, G. Dellacasa, P. Demontis, A. V. Derbin, A. Devoto, F. Di Eusanio, G. Di Pietro, C. Dionisi, A. Dolgov, I. Dormia, S. Dussoni, A. Empl, A. Ferri, C. Filip, G. Fiorillo, K. Fomenko, D. Franco, G. E. Froudakis, F. Gabriele, A. Gabrieli, C. Galbiati, P. Garcia Abia, A. Gendotti, A. Ghisi, S. Giagu, G. Gibertoni, C. Giganti, M. Giorgi, G. K. Giovanetti, M. L. Gligan, A. Gola, O. Gorchakov, A. M. Goretti, F. Granato, M. Grassi, J. W. Grate, G. Y. Grigoriev, M. Gromov, M. Guan, M. B. B. Guerra, M. Guerzoni, M. Gulino, R. K. Haaland, B. Harrop, E. W. Hoppe, S. Horikawa, B. Hosseini, D. Hughes, P. Humble, E. V. Hungerford, An. Ianni, S. Jimenez Cabre, T. N. Johnson, K. Keeter, C. L. Kendziora, S. Kim, G. Koh, D. Korablev, G. Korga, A. Kubankin, R. Kugathasan, M. Kuss, X. Li, M. Lissia, G. U. Lodi, B. Loer, G. Longo, R. Lussana, L. Luzzi, Y. Ma, A. A. Machado, I. N. Machulin, L. Mais, A. Mandarano, L. Mapelli, M. Marcante, A. Margotti, S. M. Mari, M. Mariani, J. Maricic, M. Marinelli, D. Marras, C. J. Martoff, M. Mascia, A. Messina, P. D. Meyers, R. Milincic, A. Moggi, S. Moioli, S. Monasterio, J. Monroe, A. Monte, M. Morrocchi, W. Mu, V. N. Muratova, S. Murphy, P. Musico, R. Nania, J. Napolitano, A. Navrer Agasson, I. Nikulin, V. Nosov, A. O. Nozdrina, N. N. Nurakhov, A. Oleinik, V. Oleynikov, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, S. Palmas, L. Pandola, E. Pantic, E. Paoloni, G. Paternoster, V. Pavletcov, F. Pazzona, K. Pelczar, L. A. Pellegrini, N. Pelliccia, F. Perotti, R. Perruzza, C. Piemonte, F. Pilo, A. Pocar, D. Portaluppi, S. S. Poudel, D. A. Pugachev, H. Qian, B. Radics, F. Raffaelli, F. Ragusa, K. Randle, M. Razeti, A. Razeto, V. Regazzoni, C. Regenfus, B. Reinhold, A. L. Renshaw, M. Rescigno, Q. Riffard, A. Rivetti, A. Romani, L. Romero, B. Rossi, N. Rossi, A. Rubbia, D. Sablone, P. Salatino, O. Samoylov, W. Sands, M. Sant, R. Santorelli, C. Savarese, E. Scapparone, B. Schlitzer, G. Scioli, E. Sechi, E. Segreto, A. Seifert, D. A. Semenov, S. Serci, A. Shchagin, L. Shekhtman, E. Shemyakina, A. Sheshukov, M. Simeone, P. N. Singh, M. D. Skorokhvatov, O. Smirnov, G. Sobrero, A. Sokolov, A. Sotnikov, C. Stanford, G. B. Suffritti, Y. Suvorov, R. Tartaglia, G. Testera, A. Tonazzo, A. Tosi, P. Trinchese, E. V. Unzhakov, A. Vacca, M. Verducci, T. Viant, F. Villa, A. Vishneva, B. Vogelaar, M. Wada, J. Wahl, S. Walker, H. Wang, Y. Wang, A. W. Watson, S. Westerdale, J. Wilhelmi, R. Williams, M. M. Wojcik, S. Wu, X. Xiang, X. Xiao, C. Yang, Z. Ye, F. Zappa, G. Zappalà, C. Zhu, A. Zichichi, G. Zuzel

We report on the cryogenic characterization of Red Green Blue - High Density (RGB-HD) SiPMs developed at Fondazione Bruno Kessler (FBK) as part of the DarkSide program of dark matter searches with liquid argon time projection chambers. A dedicated setup was used to measure the primary dark noise, the correlated noise, and the gain of the SiPMs at varying temperatures. A custom-made data acquisition system and analysis software were used to precisely characterize these parameters. Read More

The ability to engineer the thermal conductivity of materials allows us to control the flow of heat and derive novel functionalities such as thermal rectification, thermal switching, and thermal cloaking. While this could be achieved by making use of composites and metamaterials at bulk scales, engineering the thermal conductivity at micro- and nano-scale dimensions is considerably more challenging. In this work we show that the local thermal conductivity along a single Si nanowire can be tuned to a desired value (between crystalline and amorphous limits) with high spatial resolution through selective helium ion irradiation with a well-controlled dose. Read More

2017May
Authors: N. Dash, S. Bahinipati, V. Bhardwaj, K. Trabelsi, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, I. Badhrees, A. M. Bakich, V. Bansal, E. Barberio, B. Bhuyan, J. Biswal, A. Bobrov, A. Bondar, G. Bonvicini, A. Bozek, M. Bracko, F. Breibeck, T. E. Browder, D. Cervenkov, M. -C. Chang, V. Chekelian, A. Chen, B. G. Cheon, K. Chilikin, K. Cho, Y. Choi, D. Cinabro, S. Di Carlo, Z. Dolezal, Z. Drasal, D. Dutta, S. Eidelman, D. Epifanov, H. Farhat, J. E. Fast, T. Ferber, B. G. Fulsom, V. Gaur, N. Gabyshev, A. Garmash, R. Gillard, P. Goldenzweig, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. T. Hedges, W. -S. Hou, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, Y. Iwasaki, W. W. Jacobs, I. Jaegle, H. B. Jeon, Y. Jin, D. Joffe, K. K. Joo, T. Julius, J. Kahn, A. B. Kaliyar, G. Karyan, P. Katrenko, T. Kawasaki, C. Kiesling, D. Y. Kim, H. J. Kim, J. B. Kim, K. T. Kim, M. J. Kim, S. H. Kim, Y. J. Kim, K. Kinoshita, P. Kodys, S. Korpar, D. Kotchetkov, P. Krizan, P. Krokovny, T. Kuhr, R. Kulasiri, R. Kumar, T. Kumita, A. Kuzmin, Y. -J. Kwon, J. S. Lange, 11 I. S. Lee, C. H. Li, L. Li, Y. Li, L. Li Gioi, J. Libby, D. Liventsev, M. Lubej, T. Luo, M. Masuda, D. Matvienko, M. Merola, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, S. Mohanty, H. K. Moon, T. Mori, R. Mussa, E. Nakano, M. Nakao, T. Nanut, K. J. Nath, Z. Natkaniec, M. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, S. Ogawa, S. Okuno, H. Ono, P. Pakhlov, G. Pakhlova, B. Pal, S. Pardi, C. -S. Park, H. Park, S. Paul, T. K. Pedlar, L. Pesantez, R. Pestotnik, L. E. Piilonen, K. Prasanth, M. Ritter, A. Rostomyan, H. Sahoo, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, Y. Sato, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, A. J. Schwartz, Y. Seino, K. Senyo, M. E. Sevior, V. Shebalin, C. P. Shen, T. -A. Shibata, J. -G. Shiu, B. Shwartz, F. Simon, A. Sokolov, E. Solovieva, M. Staric, J. F. Strube, J. Stypula, K. Sumisawa, T. Sumiyoshi, M. Takizawa, U. Tamponi, K. Tanida, F. Tenchini, M. Uchida, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, C. Van Hulse, G. Varner, V. Vorobyev, A. Vossen, E. Waheed, C. H. Wang, M. -Z. Wang, P. Wang, M. Watanabe, Y. Watanabe, E. Widmann, K. M. Williams, E. Won, Y. Yamashita, H. Ye, J. Yelton, Y. Yook, C. Z. Yuan, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhukova, V. Zhulanov, A. Zupanc

We report a study of the decay $D^0 \to K^0_S K^0_S$ using 921~fb$^{-1}$ of data collected at or near the $\Upsilon(4S)$ and $\Upsilon(5S)$ resonances with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The measured time-integrated CP asymmetry is $ A_{CP}(D^0 \to K^0_S K^0_S) = (-0.02 \pm 1. Read More

Based on ab initio evolutionary crystal structure search computation, we report a new phase of phosphorus called green phosphorus ({\lambda}-P), which exhibits the direct band gaps ranging from 0.7 to 2.4 eV and the strong anisotropy in optical and transport properties. Read More

Growth of perovskite oxide thin films on Si in crystalline form has long been a critical obstacle for the integration of multifunctional oxides into Si-based technologies. In this study, we propose pulsed laser deposition of a crystalline SrTiO3 thin film on a Si using graphene substrate. The SrTiO3 thin film on graphene has a highly (00l)-oriented crystalline structure which results from the partial epitaxy. Read More

The Atacama Large Millimeter-submillimeter Array (ALMA) radio telescope has commenced science observations of the Sun starting in late 2016. Since the Sun is much larger than the field of view of individual ALMA dishes, the ALMA interferometer is unable to measure the background level of solar emission when observing the solar disk. The absolute temperature scale is a critical measurement for much of ALMA solar science, including the understanding of energy transfer through the solar atmosphere, the properties of prominences, and the study of shock heating in the chromosphere. Read More

Transition metal oxides have been extensively studied and utilized as efficient catalysts. However, the strongly correlated behavior which often results in intriguing emergent phenomena in these materials has been mostly overlooked in understanding the electrochemical activities. Here, we demonstrate a close correlation between the phase transitions and oxygen evolution reaction (OER) in a strongly correlated SrRuO3. Read More

We present the fluctuation theorem for quantum bipartite systems in which the subsystems exchange information with each other. The information fluctuation theorem exhibits the quantum mechanical features of correlations by introducing a quantum mechanical mutual information content that results in quantum mutual information and a statistical probability distribution to average the thermodynamic and informational quantities based on quantum theory. The fundamental limit of heat transferred from a heat reservoir for quantum bipartite systems involving the quantum mutual information is derived. Read More

2017May
Authors: Belle Collaboration, C. -L. Hsu, D. Dossett, M. E. Sevior, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, I. Badhrees, A. M. Bakich, E. Barberio, P. Behera, M. Berger, V. Bhardwaj, B. Bhuyan, J. Biswal, T. Bloomfield, A. Bondar, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, V. Chekelian, A. Chen, K. Chilikin, R. Chistov, K. Cho, Y. Choi, D. Cinabro, N. Dash, S. Di Carlo, Z. Doležal, Z. Drásal, S. Eidelman, H. Farhat, J. E. Fast, B. G. Fulsom, V. Gaur, N. Gabyshev, A. Garmash, P. Goldenzweig, B. Golob, O. Grzymkowska, E. Guido, T. Hara, K. Hayasaka, H. Hayashii, M. T. Hedges, W. -S. Hou, K. Inami, G. Inguglia, A. Ishikawa, W. W. Jacobs, I. Jaegle, H. B. Jeon, Y. Jin, D. Joffe, K. K. Joo, T. Julius, A. B. Kaliyar, K. H. Kang, P. Katrenko, T. Kawasaki, C. Kiesling, D. Y. Kim, H. J. Kim, J. B. Kim, K. T. Kim, M. J. Kim, S. H. Kim, P. Kodyš, S. Korpar, D. Kotchetkov, P. Križan, P. Krokovny, T. Kuhr, R. Kulasiri, A. Kuzmin, Y. -J. Kwon, Y. -T. Lai, J. S. Lange, C. H. Li, L. Li, L. Li Gioi, J. Libby, D. Liventsev, M. Lubej, T. Luo, M. Masuda, T. Matsuda, D. Matvienko, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, T. Mori, R. Mussa, E. Nakano, M. Nakao, T. Nanut, K. J. Nath, Z. Natkaniec, M. Nayak, N. K. Nisar, S. Nishida, S. Ogawa, S. Okuno, H. Ono, Y. Onuki, G. Pakhlova, B. Pal, C. -S. Park, C. W. Park, H. Park, S. Paul, L. Pesántez, L. E. Piilonen, A. Rostomyan, Y. Sakai, S. Sandilya, T. Sanuki, Y. Sato, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, Y. Seino, K. Senyo, V. Shebalin, T. -A. Shibata, J. -G. Shiu, B. Shwartz, F. Simon, E. Solovieva, M. Starič, J. F. Strube, K. Sumisawa, M. Takizawa, F. Tenchini, M. Uchida, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, C. Van Hulse, G. Varner, K. E. Varvell, V. Vorobyev, E. Waheed, C. H. Wang, M. -Z. Wang, M. Watanabe, Y. Watanabe, E. Widmann, K. M. Williams, E. Won, Y. Yamashita, H. Ye, Z. P. Zhang, V. Zhilich, V. Zhukova, V. Zhulanov, A. Zupanc

We report a study of the charmless hadronic decay of the charged $B$ meson to the three-body final state $K^+ K^- \pi^+$. The results are based on a data sample that contains $772\times10^6$ $B \bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. The measured inclusive branching fraction and the direct $CP$ asymmetry are $(5. Read More

Superluminous supernovae (SLSNe) are the most luminous supernovae in the universe. They are found in extreme star-forming galaxies and are probably connected with the death of massive stars. One hallmark of very massive progenitors would be a tendency to explode in very dense, UV-bright, and blue regions. Read More

2017May
Authors: T. Julius1, M. E. Sevior2, G. B. Mohanty3, I. Adachi4, H. Aihara5, S. Al Said6, D. M. Asner7, V. Aulchenko8, T. Aushev9, R. Ayad10, V. Babu11, I. Badhrees12, A. M. Bakich13, V. Bansal14, E. Barberio15, M. Barrett16, M. Berger17, V. Bhardwaj18, B. Bhuyan19, J. Biswal20, T. Bloomfield21, A. Bobrov22, A. Bondar23, G. Bonvicini24, A. Bozek25, M. Bračko26, T. E. Browder27, D. Červenkov28, M. -C. Chang29, Y. Chao30, V. Chekelian31, A. Chen32, B. G. Cheon33, K. Chilikin34, K. Cho35, Y. Choi36, D. Cinabro37, N. Dash38, S. Di Carlo39, Z. Doležal40, D. Dossett41, Z. Drásal42, D. Dutta43, S. Eidelman44, H. Farhat45, J. E. Fast46, T. Ferber47, B. G. Fulsom48, V. Gaur49, N. Gabyshev50, A. Garmash51, R. Gillard52, P. Goldenzweig53, J. Haba54, T. Hara55, K. Hayasaka56, H. Hayashii57, W. -S. Hou58, C. -L. Hsu59, T. Iijima60, K. Inami61, A. Ishikawa62, R. Itoh63, Y. Iwasaki64, W. W. Jacobs65, I. Jaegle66, Y. Jin67, D. Joffe68, K. K. Joo69, J. Kahn70, G. Karyan71, P. Katrenko72, T. Kawasaki73, C. Kiesling74, D. Y. Kim75, H. J. Kim76, J. B. Kim77, K. T. Kim78, M. J. Kim79, S. H. Kim80, Y. J. Kim81, K. Kinoshita82, P. Kodyš83, S. Korpar84, D. Kotchetkov85, P. Križan86, P. Krokovny87, T. Kuhr88, R. Kulasiri89, A. Kuzmin90, Y. -J. Kwon91, J. S. Lange92, I. S. Lee93, C. H. Li94, L. Li95, Y. Li96, L. Li Gioi97, J. Libby98, D. Liventsev99, T. Luo100, J. MacNaughton101, M. Masuda102, T. Matsuda103, M. Merola104, K. Miyabayashi105, H. Miyata106, R. Mizuk107, H. K. Moon108, T. Mori109, R. Mussa110, E. Nakano111, M. Nakao112, T. Nanut113, K. J. Nath114, Z. Natkaniec115, M. Nayak116, N. K. Nisar117, S. Nishida118, S. Ogawa119, H. Ono120, P. Pakhlov121, G. Pakhlova122, B. Pal123, S. Pardi124, C. -S. Park125, H. Park126, L. Pesántez127, R. Pestotnik128, L. E. Piilonen129, C. Pulvermacher130, M. Ritter131, H. Sahoo132, Y. Sakai133, M. Salehi134, S. Sandilya135, L. Santelj136, T. Sanuki137, Y. Sato138, V. Savinov139, O. Schneider140, G. Schnell141, C. Schwanda142, A. J. Schwartz143, Y. Seino144, K. Senyo145, V. Shebalin146, T. -A. Shibata147, J. -G. Shiu148, B. Shwartz149, A. Sokolov150, E. Solovieva151, M. Starič152, T. Sumiyoshi153, U. Tamponi154, K. Tanida155, F. Tenchini156, K. Trabelsi157, M. Uchida158, S. Uehara159, T. Uglov160, Y. Unno161, S. Uno162, P. Urquijo163, Y. Usov164, C. Van Hulse165, G. Varner166, K. E. Varvell167, A. Vossen168, E. Waheed169, C. H. Wang170, M. -Z. Wang171, P. Wang172, M. Watanabe173, Y. Watanabe174, E. Widmann175, K. M. Williams176, E. Won177, Y. Yamashita178, H. Ye179, C. Z. Yuan180, Y. Yusa181, Z. P. Zhang182, V. Zhilich183, V. Zhulanov184, A. Zupanc185
Affiliations: 1The Belle Collaboration, 2The Belle Collaboration, 3The Belle Collaboration, 4The Belle Collaboration, 5The Belle Collaboration, 6The Belle Collaboration, 7The Belle Collaboration, 8The Belle Collaboration, 9The Belle Collaboration, 10The Belle Collaboration, 11The Belle Collaboration, 12The Belle Collaboration, 13The Belle Collaboration, 14The Belle Collaboration, 15The Belle Collaboration, 16The Belle Collaboration, 17The Belle Collaboration, 18The Belle Collaboration, 19The Belle Collaboration, 20The Belle Collaboration, 21The Belle Collaboration, 22The Belle Collaboration, 23The Belle Collaboration, 24The Belle Collaboration, 25The Belle Collaboration, 26The Belle Collaboration, 27The Belle Collaboration, 28The Belle Collaboration, 29The Belle Collaboration, 30The Belle Collaboration, 31The Belle Collaboration, 32The Belle Collaboration, 33The Belle Collaboration, 34The Belle Collaboration, 35The Belle Collaboration, 36The Belle Collaboration, 37The Belle Collaboration, 38The Belle Collaboration, 39The Belle Collaboration, 40The Belle Collaboration, 41The Belle Collaboration, 42The Belle Collaboration, 43The Belle Collaboration, 44The Belle Collaboration, 45The Belle Collaboration, 46The Belle Collaboration, 47The Belle Collaboration, 48The Belle Collaboration, 49The Belle Collaboration, 50The Belle Collaboration, 51The Belle Collaboration, 52The Belle Collaboration, 53The Belle Collaboration, 54The Belle Collaboration, 55The Belle Collaboration, 56The Belle Collaboration, 57The Belle Collaboration, 58The Belle Collaboration, 59The Belle Collaboration, 60The Belle Collaboration, 61The Belle Collaboration, 62The Belle Collaboration, 63The Belle Collaboration, 64The Belle Collaboration, 65The Belle Collaboration, 66The Belle Collaboration, 67The Belle Collaboration, 68The Belle Collaboration, 69The Belle Collaboration, 70The Belle Collaboration, 71The Belle Collaboration, 72The Belle Collaboration, 73The Belle Collaboration, 74The Belle Collaboration, 75The Belle Collaboration, 76The Belle Collaboration, 77The Belle Collaboration, 78The Belle Collaboration, 79The Belle Collaboration, 80The Belle Collaboration, 81The Belle Collaboration, 82The Belle Collaboration, 83The Belle Collaboration, 84The Belle Collaboration, 85The Belle Collaboration, 86The Belle Collaboration, 87The Belle Collaboration, 88The Belle Collaboration, 89The Belle Collaboration, 90The Belle Collaboration, 91The Belle Collaboration, 92The Belle Collaboration, 93The Belle Collaboration, 94The Belle Collaboration, 95The Belle Collaboration, 96The Belle Collaboration, 97The Belle Collaboration, 98The Belle Collaboration, 99The Belle Collaboration, 100The Belle Collaboration, 101The Belle Collaboration, 102The Belle Collaboration, 103The Belle Collaboration, 104The Belle Collaboration, 105The Belle Collaboration, 106The Belle Collaboration, 107The Belle Collaboration, 108The Belle Collaboration, 109The Belle Collaboration, 110The Belle Collaboration, 111The Belle Collaboration, 112The Belle Collaboration, 113The Belle Collaboration, 114The Belle Collaboration, 115The Belle Collaboration, 116The Belle Collaboration, 117The Belle Collaboration, 118The Belle Collaboration, 119The Belle Collaboration, 120The Belle Collaboration, 121The Belle Collaboration, 122The Belle Collaboration, 123The Belle Collaboration, 124The Belle Collaboration, 125The Belle Collaboration, 126The Belle Collaboration, 127The Belle Collaboration, 128The Belle Collaboration, 129The Belle Collaboration, 130The Belle Collaboration, 131The Belle Collaboration, 132The Belle Collaboration, 133The Belle Collaboration, 134The Belle Collaboration, 135The Belle Collaboration, 136The Belle Collaboration, 137The Belle Collaboration, 138The Belle Collaboration, 139The Belle Collaboration, 140The Belle Collaboration, 141The Belle Collaboration, 142The Belle Collaboration, 143The Belle Collaboration, 144The Belle Collaboration, 145The Belle Collaboration, 146The Belle Collaboration, 147The Belle Collaboration, 148The Belle Collaboration, 149The Belle Collaboration, 150The Belle Collaboration, 151The Belle Collaboration, 152The Belle Collaboration, 153The Belle Collaboration, 154The Belle Collaboration, 155The Belle Collaboration, 156The Belle Collaboration, 157The Belle Collaboration, 158The Belle Collaboration, 159The Belle Collaboration, 160The Belle Collaboration, 161The Belle Collaboration, 162The Belle Collaboration, 163The Belle Collaboration, 164The Belle Collaboration, 165The Belle Collaboration, 166The Belle Collaboration, 167The Belle Collaboration, 168The Belle Collaboration, 169The Belle Collaboration, 170The Belle Collaboration, 171The Belle Collaboration, 172The Belle Collaboration, 173The Belle Collaboration, 174The Belle Collaboration, 175The Belle Collaboration, 176The Belle Collaboration, 177The Belle Collaboration, 178The Belle Collaboration, 179The Belle Collaboration, 180The Belle Collaboration, 181The Belle Collaboration, 182The Belle Collaboration, 183The Belle Collaboration, 184The Belle Collaboration, 185The Belle Collaboration

We measure the branching fraction and $CP$-violating asymmetry in the decay $B^{0}\to \pi^{0}\pi^{0}$, using a data sample of $752\times 10^{6}$ $B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB $e^{+}e^{-}$ collider. The obtained branching fraction and direct $CP$ asymmetry are $ \mathcal{B}(B\to \pi^{0}\pi^{0}) = [1.31 \pm 0. Read More

Social media such as tweets are emerging as platforms contributing to situational awareness during disasters. Information shared on Twitter by both affected population (e.g. Read More

The cointercalation of sodium with the solvent organic molecule into graphite can resolve difficulty of forming the stage-I Na-graphite intercalation compound, which is a predominant anode of Na-ion battery. To clarify the mechanism of such cointercalation, we investigate the atomistic structure, energetics, electrochemical properties, ion and electron conductance, and charge transferring upon de/intercalation of the solvated Na-diglyme ion into graphite with {\it ab initio} calculations. It is found that the Na(digl)$_2$C$_n$ compound has the negatively lowest intercalation energy at $n\approx$21, the solvated Na(digl)$_2$ ion diffuses fast in the interlayer space, and their electronic conductance can be enhanced compared to graphite. Read More

In line with its terms of reference the ICFA Neutrino Panel has developed a roadmapfor the international, accelerator-based neutrino programme. A "roadmap discussion document" was presented in May 2016 taking into account the peer-group-consultation described in the Panel's initial report. The "roadmap discussion document" was used to solicit feedback from the neutrino community---and more broadly, the particle- and astroparticle-physics communities---and the various stakeholders in the programme. Read More

We present hydrodynamic simulations of gas clouds inflowing from the disk to a few hundred parsec region of the Milky Way. A gravitational potential is generated to include realistic Galactic structures by using thousands of multipole expansions that describe 6.4 million stellar particles of a self-consistent Galaxy simulation. Read More

We investigate the dimensional dependence of dynamical fluctuations related to dynamic heterogeneity in supercooled liquid systems using kinetically constrained models. The $d$-dimensional spin-facilitated East model with embedded probe particles is used as a representative super-Arrhenius glass forming system. We investigate the existence of an upper critical dimension in this model by considering decoupling of transport rates through an effective fractional Stokes-Einstein relation, $D\sim{\tau}^{-1+\omega}$, with $D$ and $\tau$ the diffusion constant of the probe particle and the relaxation time of the model liquid, respectively, and where $\omega > 0$ encodes the breakdown of the standard Stokes-Einstein relation. Read More

2017Apr
Authors: Derek Ward-Thompson, Kate Pattle, Pierre Bastien, Ray S. Furuya, Woojin Kwon, Shih-Ping Lai, Keping Qiu, David Berry, Minho Choi, Simon Coudé, James Di Francesco, Thiem Hoang, Erica Franzmann, Per Friberg, Sarah F. Graves, Jane S. Greaves, Martin Houde, Doug Johnstone, Jason M. Kirk, Patrick M. Koch, Jungmi Kwon, Chang Won Lee, Di Li, Brenda C. Matthews, Joseph C. Mottram, Harriet Parsons, Andy Pon, Ramprasad Rao, Mark Rawlings, Hiroko Shinnaga, Sarah Sadavoy, Sven van Loo, Yusuke Aso, Do-Young Byun, Eswariah Chakali, Huei-Ru Chen, Mike C. -Y. Chen, Wen Ping Chen, Tao-Chung Ching, Jungyeon Cho, Antonio Chrysostomou, Eun Jung Chung, Yasuo Doi, Emily Drabek-Maunder, Stewart P. S. Eyres, Jason Fiege, Rachel K. Friesen, Gary Fuller, Tim Gledhill, Matt J. Griffin, Qilao Gu, Tetsuo Hasegawa, Jennifer Hatchell, Saeko S. Hayashi, Wayne Holland, Tsuyoshi Inoue, Shu-ichiro Inutsuka, Kazunari Iwasaki, Il-Gyo Jeong, Ji-hyun Kang, Miju Kang, Sung-ju Kang, Koji S. Kawabata, Francisca Kemper, Gwanjeong Kim, Jongsoo Kim, Kee-Tae Kim, Kyoung Hee Kim, Mi-Ryang Kim, Shinyoung Kim, Kevin M. Lacaille, Jeong-Eun Lee, Sang-Sung Lee, Dalei Li, Hua-bai Li, Hong-Li Liu, Junhao Liu, Sheng-Yuan Liu, Tie Liu, A-Ran Lyo, Steve Mairs, Masafumi Matsumura, Gerald H. Moriarty-Schieven, Fumitaka Nakamura, Hiroyuki Nakanishi, Nagayoshi Ohashi, Takashi Onaka, Nicolas Peretto, Tae-Soo Pyo, Lei Qian, Brendan Retter, John Richer, Andrew Rigby, Jean-François Robitaille, Giorgio Savini, Anna M. M. Scaife, Archana Soam, Motohide Tamura, Ya-Wen Tang, Kohji Tomisaka, Hongchi Wang, Jia-Wei Wang, Anthony P. Whitworth, Hsi-Wei Yen, Hyunju Yoo, Jinghua Yuan, Chuan-Peng Zhang, Guoyin Zhang, Jianjun Zhou, Lei Zhu, Philippe André, C. Darren Dowell, Sam Falle, Yusuke Tsukamoto

We present the first results from the B-fields In STar-forming Region Observations (BISTRO) survey, using the Sub-millimetre Common-User Bolometer Array 2 (SCUBA-2) camera, with its associated polarimeter (POL-2), on the James Clerk Maxwell Telescope (JCMT) in Hawaii. We discuss the survey's aims and objectives. We describe the rationale behind the survey, and the questions which the survey will aim to answer. Read More

We study the incompressible surfaces in the exterior of a cable knot and use this to compute the representativity and waist of most cable knots. Read More

Computer programs written in one language are often required to be ported to other languages to support multiple devices and environments. When programs use language specific APIs (Application Programming Interfaces), it is very challenging to migrate these APIs to the corresponding APIs written in other languages. Existing approaches mine API mappings from projects that have corresponding versions in two languages. Read More

Person re-identification(re-id) is the task of recognizing and identifying a person across multiple views in multi-camera networks. Although there has been much progress in person re-id, the person re-id in large-scale multi-camera networks still remains a challenging task because of the spatio-temporal uncertainty and high complexity due to large numbers of cameras and people. To handle these difficulties, additional information such as camera network topology should be provided, which is also difficult to automatically estimate. Read More

Based on the first-principles evolutionary materials design, we report a stable boron Kagome lattice composed of triangles in triangles on a two-dimensional sheet. The Kagome lattice can be synthesized on a silver substrate, with selecting Mg atoms as guest atoms. While the isolated Kagome lattice is slightly twisted without strain, it turns into an ideal triangular Kagome lattice under tensile strain. Read More

We study the probability of $k$-hop connection between two nodes in a wireless multi-hop network, addressing the difficulty of providing an exact formula for the scaling of hop counts with Euclidean distance without first making a sort of mean field approximation, which in this case assumes all nodes in the network have uncorrelated degrees. We therefore study the mean and variance of the number of $k$-hop paths between two vertices $x,y$ in the random connection model, which is a random geometric graph where nodes connect probabilistically rather than according to a law of intersecting spheres. In the example case where Rayleigh fading is modelled, the variance of the number of three hop paths is in fact composed of four separate decaying exponentials, one of which is the mean, which decays slowest as $\lVert x-y \rVert \to \infty$. Read More

2017Apr
Authors: S. Mathur, A. Gupta, K. Page, R. W. Pogge, Y. Krongold, M. R. Goad, S. M. Adams, M. D. Anderson, P. Arevalo, A. J. Barth, C. Bazhaw, T. G. Beatty, M. C. Bentz, A. Bigley, S. Bisogni, G. A. Borman, T. A. Boroson, M. C. Bottorff, W. N. Brandt, A. A. Breeveld, J. E. Brown, J. S. Brown, E. M. Cackett, G. Canalizo, M. T. Carini, K. I. Clubb, J. M. Comerford, C. T. Coker, E. M. Corsini, D. M. Crenshaw, S. Croft, K. V. Croxall, E. Dalla Bonta, A. J. Deason, K. D. Denney, A. De Lorenzo-Caceres, G. De Rosa, M. Dietrich, R. Edelson, J. Ely, M. Eracleous, P. A. Evans, M. M. Fausnaugh, G. J. Ferland, A. V. Filippenko, K. Flatland, O. D. Fox, E. L. Gates, N. Gehrels, S. Geier, J. M. Gelbord, V. Gorjian, J. E. Greene, C. J. Grier, D. Grupe, P. B. Hall, C. B. Henderson, S. Hicks, E. Holmbeck, T. W. -S. Holoien, D. Horenstein, Keith Horne, T. Hutchison, M. Im, J. J. Jensen, C. A. Johnson, M. D. Joner, J. Jones, J. Kaastra, S. Kaspi, B. C. Kelly, P. L. Kelly, J. A. Kennea, M. Kim, S. Kim, S. C. Kim, A. King, S. A. Klimanov, C. S. Kochanek, K. T. Korista, G. A. Kriss, M. W. Lau, J. C. Lee, D. C. Leonard, M. Li, P. Lira, Z. Ma, F. MacInnis, E. R. Manne-Nicholas, M. A. Malkan, J. C. Mauerhan, R. McGurk, I. M. McHardy, C. Montouri, L. Morelli, A. Mosquera, D. Mudd, F. Muller-Sanchez, R. Musso, S. V. Nazarov, H. Netzer, M. L. Nguyen, R. P. Norris, J. A. Nousek, P. Ochner, D. N. Okhmat, B. Ou-Yang, A. Pancoast, I. Papadakis, J. R. Parks, L. Pei, B. M. Peterson, A. Pizzella, R. Poleski, J. -U. Pott, S. E. Rafter, H. -W. Rix, J. Runnoe, D. A. Saylor, J. S. Schimoia, K. Schnülle, S. G. Sergeev, B. J. Shappee, I. Shivvers, M. Siegel, G. V. Simonian, A. Siviero, A. Skielboe, G. Somers, M. Spencer, D. Starkey, D. J. Stevens, H. -I. Sung, J. Tayar, N. Tejos, C. S. Turner, P. Uttley, J. Van Saders, M. Vestergaard, L. Vican, S. VillanuevaJr., C. Villforth, Y. Weiss, J. -H. Woo, H. Yan, S. Young, H. Yuk, W. Zheng, W. Zhu, Y. Zu

During the Space Telescope and Optical Reverberation Mapping Project (STORM) observations of NGC 5548, the continuum and emission-line variability became de-correlated during the second half of the 6-month long observing campaign. Here we present Swift and Chandra X-ray spectra of NGC 5548 obtained as a part of the campaign. The Swift spectra show that excess flux (relative to a power-law continuum) in the soft X-ray band appears before the start of the anomalous emission-line behavior, peaks during the period of the anomaly, and then declines. Read More

Schubert varieties are classical varieties and one of the important examples among spherical varieties. Especially, all smooth Schubert varieties in rational homogeneous manifolds of Picard number 1 are horospherical varieties. We characterize standard embeddings of smooth Schubert varieties in rational homogeneous manifolds of Picard number 1 by means of varieties of minimal rational tangents. Read More

Many measurements of quarkonium suppression at the LHC, e.g. the nuclear modification factor $R_{AA}$ of $J/\Psi$, are well described by a multitude of different models. Read More

We consider the Watts-Strogatz small-world network consisting of subthreshold neurons which exhibit noise-induced spikings. This neuronal network has adaptive dynamic synaptic strengths governed by the spike-timing-dependent plasticity (STDP). In previous works without STDP, stochastic spike synchronization (SSS) between noise-induced spikings of subthreshold neurons was found to occur in a range of intermediate noise intensities through competition between the constructive and the destructive roles of noise. Read More

Observations of the Sun at millimeter and submillimeter wavelengths offer a unique probe into the structure, dynamics, and heating of the chromosphere; the structure of sunspots; the formation and eruption of prominences and filaments; and energetic phenomena such as jets and flares. High-resolution observations of the Sun at millimeter and submillimeter wavelengths are challenging due to the intense, extended, low- contrast, and dynamic nature of emission from the quiet Sun, and the extremely intense and variable nature of emissions associated with energetic phenomena. The Atacama Large Millimeter/submillimeter Array (ALMA) was designed with solar observations in mind. Read More

Reinforcement learning involves decision making in dynamic and uncertain environments, and constitutes one important element of artificial intelligence (AI). In this paper, we experimentally demonstrate that the ultrafast chaotic oscillatory dynamics of lasers efficiently solve the multi-armed bandit problem (MAB), which requires decision making concerning a class of difficult trade-offs called the exploration-exploitation dilemma. To solve the MAB, a certain degree of randomness is required for exploration purposes. Read More

This paper considers an uplink multiuser massive multiple-input-multiple-output (MIMO) system with low-resolution analog-to-digital converters (ADCs), in which K users with a single-antenna communicate with one base station (BS) with Nr antennas. In this system, we present a novel multiuser MIMO detection framework that is inspired by coding theory. The key idea of the proposed framework is to create a code C of length 2Nr over a spatial domain. Read More

As the first step to model emotional state of a person, we build sentiment analysis models with existing deep neural network algorithms and compare the models with psychological measurements to enlighten the relationship. In the experiments, we first examined psychological state of 64 participants and asked them to summarize the story of a book, Chronicle of a Death Foretold (Marquez, 1981). Secondly, we trained models using crawled 365,802 movie review data; then we evaluated participants' summaries using the pretrained model as a concept of transfer learning. Read More

The low-lying unbound level structure of the halo nucleus $^{19}\textrm{C}$ has been investigated using single-neutron knockout from $^{20}\textrm{C}$ on a carbon target at 280 MeV/nucleon. The invariant mass spectrum, derived from the momenta of the forward going beam velocity $^{18}\textrm{C}$ fragment and neutrons, was found to be dominated by a very narrow near threshold ($E_\textrm{rel}$ = 0.036(1) MeV) peak. Read More

Chiral spin textures at the interface between ferromagnetic and heavy nonmagnetic metals, such as Neel-type domain walls and skyrmions, have been studied intensively because of their great potential for future nanomagnetic devices. The Dyzaloshinskii-Moriya interaction (DMI) is an essential phenomenon for the formation of such chiral spin textures. In spite of recent theoretical progress aiming at understanding the microscopic origin of the DMI, an experimental investigation unravelling the physics at stake is still required. Read More

2017Apr
Authors: Belle Collaboration, K. Chilikin, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, V. Aulchenko, R. Ayad, V. Babu, I. Badhrees, A. M. Bakich, V. Bansal, E. Barberio, D. Besson, V. Bhardwaj, B. Bhuyan, J. Biswal, A. Bobrov, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, D. Červenkov, V. Chekelian, A. Chen, B. G. Cheon, K. Cho, Y. Choi, D. Cinabro, N. Dash, S. Di Carlo, Z. Doležal, Z. Drásal, D. Dutta, S. Eidelman, H. Farhat, J. E. Fast, T. Ferber, B. G. Fulsom, V. Gaur, N. Gabyshev, A. Garmash, R. Gillard, P. Goldenzweig, J. Haba, T. Hara, K. Hayasaka, W. -S. Hou, K. Inami, A. Ishikawa, R. Itoh, Y. Iwasaki, W. W. Jacobs, I. Jaegle, H. B. Jeon, Y. Jin, D. Joffe, K. K. Joo, T. Julius, K. H. Kang, G. Karyan, P. Katrenko, D. Y. Kim, H. J. Kim, J. B. Kim, K. T. Kim, M. J. Kim, S. H. Kim, Y. J. Kim, K. Kinoshita, P. Kodyš, S. Korpar, D. Kotchetkov, P. Križan, P. Krokovny, T. Kuhr, R. Kulasiri, A. Kuzmin, Y. -J. Kwon, J. S. Lange, L. Li, L. Li Gioi, J. Libby, D. Liventsev, M. Lubej, T. Luo, M. Masuda, T. Matsuda, D. Matvienko, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, H. K. Moon, T. Mori, R. Mussa, E. Nakano, M. Nakao, T. Nanut, K. J. Nath, Z. Natkaniec, M. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, S. Ogawa, S. Okuno, S. L. Olsen, H. Ono, P. Pakhlov, G. Pakhlova, B. Pal, S. Pardi, H. Park, S. Paul, R. Pestotnik, L. E. Piilonen, C. Pulvermacher, M. Ritter, H. Sahoo, Y. Sakai, M. Salehi, S. Sandilya, L. Santelj, T. Sanuki, O. Schneider, G. Schnell, C. Schwanda, Y. Seino, K. Senyo, O. Seon, M. E. Sevior, V. Shebalin, C. P. Shen, T. -A. Shibata, J. -G. Shiu, A. Sokolov, E. Solovieva, M. Starič, T. Sumiyoshi, M. Takizawa, U. Tamponi, K. Tanida, F. Tenchini, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, S. Uno, Y. Usov, C. Van Hulse, G. Varner, A. Vinokurova, A. Vossen, C. H. Wang, M. -Z. Wang, P. Wang, M. Watanabe, Y. Watanabe, E. Widmann, E. Won, H. Yamamoto, Y. Yamashita, H. Ye, C. Z. Yuan, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

We perform a full amplitude analysis of the process $e^+ e^- \rightarrow J/\psi D \bar{D}$, where $D$ refers to either $D^0$ or $D^+$. A new charmoniumlike state $X^*(3860)$ that decays to $D \bar{D}$ is observed with a significance of $6.5\sigma$. Read More

We extend and improve the results in \cite{DK16}: showing that weak solutions to full elliptic equations in divergence form with zero Dirichlet boundary conditions are continuously differentiable up to the boundary when the leading coefficients have Dini mean oscillation and the lower order coefficients verify certain conditions. Similar results are obtained for non-divergence form equations. We extend the weak type-(1, 1) estimates in \cite{DK16} and \cite{Es94} up to the boundary and derive a Harnack inequality for non-negative adjoint solutions to non-divergence form elliptic equations, when the leading coefficients have Dini mean oscillation. Read More

Objective: In this work, we perform margin assessment of human breast tissue from optical coherence tomography (OCT) images using deep neural networks (DNNs). This work simulates an intraoperative setting for breast cancer lumpectomy. Methods: To train the DNNs, we use both the state-of-the-art methods (Weight Decay and DropOut) and a newly introduced regularization method based on function norms. Read More

A fraction of early-type dwarf galaxies in the Virgo cluster have a disk component and even possess disk features such as bar, lens, and spiral arms. In this study, we construct 15 galaxy models that resemble VCC856, considered to be an infalling progenitor of disk dwarf galaxies, within observational error ranges, and use $N$-body simulations to study their long-term dynamical evolution in isolation as well as the formation of bar in them. We find that dwarf disk galaxies readily form bars unless they have an excessively concentrated halo or a hot disk. Read More

Antiferromagnetic spintronics is an emerging research field which aims to utilize antiferromagnets as core elements in spintronic devices. A central motivation toward this direction is that antiferromagnetic spin dynamics is expected to be much faster than ferromagnetic counterpart because antiferromagnets have higher resonance frequencies than ferromagnets. Recent theories indeed predicted faster dynamics of antiferromagnetic domain walls (DWs) than ferromagnetic DWs. Read More

Recent advances in deep learning for object recognition in natural images has prompted a surge of interest in applying a similar set of techniques to medical images. Most of the initial attempts largely focused on replacing the input to such a deep convolutional neural network from a natural image to a medical image. This, however, does not take into consideration the fundamental differences between these two types of data. Read More

We present a new "completed event" microlensing event-finder algorithm and apply it to the 2015 Korea Microlensing Telescope Network (KMTNet) data. The algorithm works by making linear fits to a (t0,teff,u0) grid of point-lens microlensing models. This approach is rendered computationally efficient by restricting u0 to just two values (0 and 1), which we show is quite adequate. Read More

This study aims to search for the existence of intraday variability (IDV) of BL Lac object S5 0716+714 at high radio frequencies for which the interstellar scintillation effect is not significant. Using the 21-meter radio telescope of the Korean VLBI Network (KVN), we present results of multi-epoch simultaneous dual-frequency radio observations. Single-dish observations of S5 0716+714 were simultaneously conducted at 21. Read More