Search Results 1-20 of 73

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  • First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole

    The Event Horizon Telescope Collaboration , Sasada Mahito

    … Across all methods, we measure a crescent diameter of 42 ± 3 μas and constrain its fractional width to be <0.5. … Folding in a distance measurement of 16.8^+0.8_-0.7 Mpc gives a black hole mass of M = 6.5 ± 0.2∣_stat ± 0.7∣_sys × 10⁹M⊙. …

    The Astrophysical Journal Letters 875(1), L6, 2019-04-10

    IR 

  • Investigating spatial error structures in continuous raster data

    Tsutsumida Narumasa , Rodríguez-Veiga Pedro , Harris Paul , Balzter Heiko , Comber Alexis

    … Such approach computes local error diagnostics from data weighted by its distance to the centre of a moving kernel and allows to map spatial surfaces of each type of error. … The first case study demonstrates the use of GW diagnostics to fractional impervious surface area datasets generated by four different models for the Jakarta metropolitan area, Indonesia. …

    International Journal of Applied Earth Observation and Geoinformation (74), 259-268, 2019-02

    IR 

  • Sphere Packing Bound and Gilbert-Varshamov Bound for <i>b</i>-Symbol Read Channels

    SONG Seunghoan , FUJIWARA Toru

    … that maximizes the asymptotic G-V bound is finitely determined depending on the fractional minimum distance.</p> …

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E101.A(11), 1915-1924, 2018

    J-STAGE 

  • Linear Programming Decoding of Binary Linear Codes for Symbol-Pair Read Channel

    HORII Shunsuke , MATSUSHIMA Toshiyasu , HIRASAWA Shigeichi

    … We also introduce the <i>fractional pair distance</i> … of the code, which is a lower bound on the minimum pair distance. …

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E99.A(12), 2170-2178, 2016

    J-STAGE 

  • Impact of Pressure Signal Drift on Fractional Flow Reserve-Based Decision-Making for Patients With Intermediate Coronary Artery Stenosis

    Wakasa Nobutaka , Miyamoto Kazunori , Tobata Hiroshi , Kakuta Tsunekazu , Kuramochi Tatsuhiko , Mihashi Naoto , Terada Noriko , Kanaji Yoshihisa , Murai Tadashi , Lee Tetsumin , Yonetsu Taishi , Kobashi Kazuhiko

    … <p><b><i>Background:</i></b>Fractional flow reserve (FFR) is an important physiological measure of intermediate coronary artery stenosis. …

    Circulation Journal 80(8), 1812-1819, 2016

    J-STAGE 

  • Suppressing Fractional Pseudocodewords by Eliminating Small Instantons

    GUO Junjun , MU Jianjun , JIAO Xiaopeng , ZHAO Peng

    … In this letter, a new method is presented to suppress fractional pseudocodewords by eliminating small instantons of irregular low-density parity-check (LDPC) codes under the linear programming (LP) decoding over the binary symmetric channel (BSC). …

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E99.A(2), 674-677, 2016

    J-STAGE 

  • Coronary Angiographic Characteristics That Influence Fractional Flow Reserve

    Natsumeda Makoto , Yoshimachi Fuminobu , Ikari Yuji , Nakazawa Gaku , Murakami Tsutomu , Torii Sho , Ijichi Takeshi , Ohno Yohei , Masuda Naoki , Shinozaki Norihiko , Ogata Nobuhiko

    … <b><i>Background:</i></b>Percutaneous coronary intervention (PCI) guided with fractional flow reserve (FFR) has been shown to improve clinical outcome. … P=0.0002), and distance from ostium <20 mm (OR, 1.94; … Area under the ROC curve for probability of positive FFR using the STABLED score (Stenosis 2 points, TAndem lesion 1 point, Bifurcation 1 point, LEsion length 1 point, Distance from ostium 1 point) was 0.85, higher than that for QCA stenosis alone (0.76). …

    Circulation Journal 79(4), 802-807, 2015

    J-STAGE 

  • Novel Synthesis of A Wideband Filter Using Open-Short-Circuited Stepped Impedance Resonators

    Chen Chun-Ping , Kato Noriki , Kamata Katsuhiro , Kato Takemasa , Anada Tetsuo

    先端短絡・開放ステップインピーダンス共振器(OSSIR)に基づいた新しい広帯域フィルタとそれに対応する合成理論を提案した.まず,伝送線路理論に基づいて,OSSIRの共振特性を調べた上,提案した広帯域フィルタを合成するための擬似チェビシェフ関数に基づいた汎用設計式を導出した.従来の広帯域フィルタの合成理論と比べ,新合成理論を用いる場合,設計するフィルタの通過帯域の帯域幅と挿入損のほかに,中心周波数に …

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 114(9), 11-16, 2014-04-17

  • Novel Synthesis of A Wideband Filter Using Open-Short-Circuited Stepped Impedance Resonators

    Chen Chun-Ping , Kato Noriki , Kamata Katsuhiro , Kato Takemasa , Anada Tetsuo

    先端短絡・開放ステップインピーダンス共振器(OSSIR)に基づいた新しい広帯域フィルタとそれに対応する合成理論を提案した.まず,伝送線路理論に基づいて,OSSIRの共振特性を調べた上,提案した広帯域フィルタを合成するための擬似チェビシェフ関数に基づいた汎用設計式を導出した.従来の広帯域フィルタの合成理論と比べ,新合成理論を用いる場合,設計するフィルタの通過帯域の帯域幅と挿入損のほかに,中心周波数に …

    IEICE technical report. Microwaves 114(11), 11-16, 2014-04-17

  • Novel Synthesis of A Wideband Filter Using Open-Short-Circuited Stepped Impedance Resonators

    Chen Chun-Ping , Kato Noriki , Kamata Katsuhiro , Kato Takemasa , Anada Tetsuo

    先端短絡・開放ステップインピーダンス共振器(OSSIR)に基づいた新しい広帯域フィルタとそれに対応する合成理論を提案した.まず,伝送線路理論に基づいて,OSSIRの共振特性を調べた上,提案した広帯域フィルタを合成するための擬似チェビシェフ関数に基づいた汎用設計式を導出した.従来の広帯域フィルタの合成理論と比べ,新合成理論を用いる場合,設計するフィルタの通過帯域の帯域幅と挿入損のほかに,中心周波数に …

    Technical report of IEICE. SCE 114(10), 11-16, 2014-04-17

  • Blockade of HERG Human K<sup>+</sup> Channels by the Antidepressant Drug Paroxetine

    Lee Seung Ho , Sung Min Ji , Lee Hyang Mi , Chu Daehyun , Hahn Sang June , Jo Su-Hyun , Choe Han , Choi Bok Hee

    … The fractional electrical distance was estimated to be 0.11. …

    Biological and Pharmaceutical Bulletin 37(9), 1495-1504, 2014

    J-STAGE  Ichushi Web 

  • Electronic-structure modification of graphene on Ni(111) surface by the intercalation of a noble metal

    Hasegawa Masayuki , Nishidate Kazume , Hosokai Takuya , Yoshimoto Noriyuki

    … We first confirm that in the most stable configuration graphene is chemisorbed on Ni(111) with binding distance in good agreement with experiments. … The bandgap is largest for fractional Ag coverage of ∼1.3 monolayer (ML) and is appreciable for fractional Ag coverage. …

    Physical Review B 87(8), 085439, 2013-02-25

    IR 

  • Distance-to-collision sampling of neutron flights under 1/f noise  [in Japanese]

    UEKI TARO

    自然界における揺らぎは、多くの場合、1/fの揺らぎと呼ばれる現象に収束する傾向がある。この揺らぎ現象を、統計学及び統計物理学の手法のみで記述することは困難であるが、フラクタル幾何学においては、拡張ブラウン運動による1/f揺らぎのモデルが提案されている。本発表では、この拡張ブラウン運動モデル下で、デルタ追跡法(delta tracking)による中性子飛程長サンプリングが可能であることを報告する。ま …

    Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan 2013s(0), 360, 2013

    J-STAGE 

  • Evaluation of Callosal Motor Fiber Location in the Human Brain by Diffusion Tensor Tractography Combined with Functional MRI

    Lee Dong-Hoon , Woo Young-Keun , Hong Cheol-Pyo

    … After the callosal motor fiber tract was reconstructed, we measured its relative anatomical locations in the corpus callosum, and calculated the fractional anisotropy (FA), and apparent diffusion coefficient (ADC) values. … [Results] The mean ± standard deviation of the distance ratio was 29.08 ± 3.42%. …

    Journal of Physical Therapy Science 25(4), 387-389, 2013

    J-STAGE  Ichushi Web 

  • M-Shaped Dielectric Phase Shifter for Beam-Steerable Base-Station Antenna

    NISHIMOTO Kengo , OSHIMA Takeshi , FUKASAWA Toru , MIYASHITA Hiroaki , KONISHI Yoshihiko , KURIHARA Manabu , CHATANI Yoshiyuki

    … regardless of the movement distance, <i>r</i>, of the dielectric plate, and the relationship between the phase shift and <i>r</i> … The insertion loss is smaller than about 0.2dB within a fractional bandwidth of 10%, and the phase shift can vary from 0 to about 80 degrees. …

    IEICE Transactions on Communications E96.B(8), 2095-2101, 2013

    J-STAGE 

  • Linear Term Inflation from Running Kinetic Term in Supergravity

    TAKAHASHI Fuminobu

    … This naturally occurs especially if the inflaton moves over a long distance during inflation as in the case of large-scale inflation. … It is straightforward to build a chaotic inflation model with a fractional power along the same line. …

    Progress of theoretical physics (190), 26-32, 2011-10-31

    DOI  NDL Digital Collections  References (28)

  • Evaluation of Small Ultrasonic Probe using Lead Zirconate Titanate poly-crystal Film Deposited by Hydrothermal Method  [in Japanese]

    HASEGAWA Tomohito , ISHIKAWA Mutsuo , KURIBAYASHI KUROSAWA Minoru , TAKEUCHI Shinichi

    … As a result, we succeeded in the fabrication of a wideband ultrasound probe with a distance resolution of 16<i>μ</i>m, a frequency bandwidth of 69MHz in the range of 39 to 98MHz, and a fractional bandwidth of 86% at the epoxy resin backing probe. …

    IEEJ Transactions on Electronics, Information and Systems 131(6), 1174-1180, 2011-06-01

    J-STAGE  References (15)

  • Indexing expensive functions for efficient multi-dimensional similarity search

    Chen Hanxiong , Liu Jianquan , Furuse Kazutaka , Yu Jeffrey Xu , Ohbo Nobuo , 陳 漢雄 , 古瀬 一隆

    … For an expensive distance function such as L p norm with fractional p, the computation cost becomes the bottleneck. … We propose a new technique to address expensive distance functions by "indexing the function" by pre-computing some key values of the function once. … Then, the values are used to develop the upper/lower bounds of the distance between a data vector and the query vector. …

    Knowledge and information systems 27(2), 165-192, 2011-05

    IR 

  • Investigation on Optimum Control Interval for Intra-Cell Fractional TPC Using AMC for Shared Channel in Evolved UTRA Uplink

    NISHIKAWA Daisuke , KISHIYAMA Yoshihisa , HIGUCHI Kenichi , SAWAHASHI Mamoru

    … This paper presents the optimum control interval for intra-cell fractional transmission power control (TPC) for a shared data channel employing frequency domain channel-dependent scheduling and adaptive modulation and coding (AMC) in the Evolved UTRA uplink using single-carrier (SC)-FDMA radio access. …

    IEICE Transactions on Communications 92(5), 1627-1633, 2009-05-01

    J-STAGE  References (16) Cited by (2)

  • An Efficient Method for Evaluating Max-Fractional Distance Based on A Primal Path-Following Interior Point Method

    MIWA Makoto , WADAYAMA Tadashi , TAKUMI Ichi

    2元線形符号の最大分数距離は,線形計画(LP)復号法のAWGN通信路における誤り率に深く関わっている.また,最大分数距離は最小疑似距離の下界を与えるため,符号の最小疑似距離を解析する上でも重要な量である.本稿では,主パス追跡内点法に基づく効率的な最大分数距離計算法を提案する.提案法では,最大分数距離を得るためのLP問題を主パス追跡内点法を用いて解く.また双対ギャップを用いることにより,提案法の計算 …

    IEICE technical report 108(473), 427-433, 2009-03-02

    References (13)

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