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Browsing 学術雑誌論文 / Journal Article by Title

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  • Fujiki, Michiya; Oikawa, Shigeru (高分子学会, 1984)
    An unusual temperature dependence of light scattering properties by pure polystyrene (PS) was observed in the temperature range of 30?170°C: the V′v and Vviso′ intensities minimized near Tg, and the H′v intensity changed ...
  • Kaino, Toshikuni; Fujiki, Michiya; Nara, Shigeo (American Institute of Physics, 1981-12-12)
    Low‐loss plastic optical fibers (POF) have been prepared with the attenuation loss of 114 dB/km at the wavelength of 670 nm employing polystylene core and ethylene‐vinylacetate copolymer cladding. The POF can allow the use ...
  • Phannachitta, Passakorn; Monden, Akito; Keung, Jacky; Matsumoto, Kenichi (電子情報通信学会, 2016-01-01)
    Analogy-based software effort estimation has gained a considerable amount of attention in current research and practice. Its excellent estimation accuracy relies on its solution adaptation stage, where an effort estimate ...
  • Furutani, Masahiko; Nakano, Yasukazu; Tasaka, Masao (National Academiy of Science, 2014-01-21)
    In Arabidopsis, leaves and flowers form cyclically in the shoot meristem periphery and are triggered by local accumulations of the plant hormone auxin. Auxin maxima are established by the auxin efflux carrier PIN-FORMED1 ...
  • Suwa, Tomomi; Tomita, Satoshi; Hosoito, Nobuyoshi; Yanagi, Hisao (MDPI AG, 2017-10-20)
    Herein we experimentally study magnetic multilayer metamaterials with broken translational symmetry. Epitaxially-grown iron-gold (Fe-Au) multilayers modulated using Fibonacci sequence—referred to as magnetic inverse ...
  • 布川, 雄大; 孫, 為華; 安本, 慶一; 伊藤, 実 (一般社団法人情報処理学会, 2011-02-15)
    本論文では,モバイルユーザが所持する無線通信可能なワンセグ携帯端末を対象に,ワンセグの受信品質が良い端末から悪い端末(難視聴端末)に対してマルチホップでビデオをストリーミング配信することで視聴品質を向上させる手法を提案する.まず,無線通信帯域や最大転送ホップ数などの制約を満たし,難視聴端末の救済数を最大化するビデオ中継パスの集合を求める問題を形式的に定義する.本問題はNP困難問題であり短時間に最適解を求めることは難しいため,各端末が近隣 ...
  • 高島, 栄一; 村田, 佳洋; 柴田, 直樹; 安本, 慶一; 伊藤, 実 (一般社団法人情報処理学会, 2007-02-15)
    モバイルアドホックネットワーク(MANET)上でビデオなどのマルチメディアデータをストリーミング配信するため,遅延や帯域幅などの複数のQoS に関する制約を満たすマルチキャスト木を動的に構築する手法が研究されている.MANET 上のマルチキャスト木構築は,QoS の制約だけでなく,経路の安定性,省電力など,様々な目的に対する最適性を同時に考慮できることが望ましい.最適なマルチキャスト木を求める問題はNP 困難であるため,近似解法として遺 ...
  • Vacca, Barbara; Sanchez-Heras, Elena; Steed, Emily; Balda, Maria S; Ohnuma, Shin-Ichi; Sasai, Noriaki; Mayor, Roberto; Matter, Karl (The Company of Biologists, 2016-11-15)
    Ocular morphogenesis requires several signalling pathways controlling the expression of transcription factors and cell-cycle regulators. However, despite a well-known mechanism, the dialogue between those signals and factors ...
  • Ikegami, Daisuke; Kaji, Yuichi (Institute of Electronics, Information and Communication Engineers, 2003-03-01)
    New algorithms for the soft-derision and the hard-derision maximum likelihood decoding (MLD) for binary linear block codes are proposed. It has been widely known that both MLD can be regarded as an integer programming with ...
  • Alexandre Girardi; Harald Singer; Kiyohiro Shikano; Satoshi Nakamura (電子情報通信学会, 2000-10)
    This paper shows how a divisive state clustering algorithm that generates acoustic Hidden Markov models(HMM)can benefit from a tied-mixture representation of the probability density function(pdf)of a state and increase the ...
  • Kitamata, Manabu; Hanawa-Suetsugu, Kyoko; Maruyama, Kohei; Suetsugu, Shiro (Elsevier (Cell Press), 2019-07-26)
    Ankyrin-repeat domains (ARDs) are conserved in large numbers of proteins. ARDs are composed of various numbers of ankyrin repeats (ANKs). ARDs often adopt curved structures reminiscent of the Bin-Amphiphysin-Rvs (BAR) ...
  • Tomita, Satoshi; Kurosawa, Hiroyuki; Ueda, Tetsuya; Sawada, Kei (IOP Publishing, 2018-02-06)
    This review introduces and overviews electromagnetism in structured metamaterials which undergo simultaneous time-reversal and space-inversion symmetry breaking due to magnetism and chirality. Direct experimental observation ...
  • Kashiwabara, Yuki; Ishio, Takashi; Hata, Hideaki; Inoue, Katsuro (電子情報通信学会, 2015-03-01)
    It is well-known that program readability is important for maintenance tasks. Method names are important identifiers for program readability because they are used for understanding the behavior of methods without reading ...
  • Tomita, Satoshi; Sawada, Kei; Nagai, Shotaro; Sanada, Atsushi; Hisamoto, Nobuyuki; Ueda, Tetsuya (American Physical Society, 2017-10-13)
    This study observes microwave beam splitting dependent on circular polarizations through nonuniform chiral metamaterials. Nonuniform chiral metamaterials with a gradation in refractive index are constructed using chiral ...
  • Kodama, Toshiyuki; Kusanagi, Yusaku; Okamoto, Satoshi; Kikuchi, Nobuaki; Kitakami, Osamu; Tomita, Satoshi; Hosoito, Nobuyoshi; Yanagi, Hisao (American Physical Society, 2018-05-17)
    We investigate the microwave spectroscopies of a micrometer-sized single permalloy (Py) chiral structure on coplanar waveguides (CPWs). Under an external dc magnetic field applied in a direction perpendicular to the microwave ...
  • Matsuura, Satoshi; Fujikawa, Kazutoshi; Sunahara, Hideki (Institute of Electronics, Information and Communication Engineers, 2007-10-01)
    With the rapid rise in the demand for location related service, communication devices such as PDAs or cellar phones must be able to search and manage information related to the geographical location. To leverage location-related ...
  • Fujiki, Michiya (MDPI, 2010-08-13)
    From elemental particles to human beings, matter is dissymmetric with respect to mirror symmetry. In 1860, Pasteur conjectured that biomolecular handedness? homochirality?may originate from certain inherent dissymmetric ...
  • Fujiki, Michiya (日本化学会, 2009-11-24)
    From elemental particles to human beings, matter and living worlds ill our universe are dissymmetric with respect to mirror symmetry. Since the early 19th century, the origin of biomolecular handedness has been puzzling ...
  • Okura, Fumio; Kanbara, Masayuki; Yokoya, Naokazu (ACM, 2015-03-05)
    This article describes a Mixed-Reality (MR) application that superimposes lost buildings of a historical site onto real scenes virtualized using spherical aerial images. The proposed application is set at a UNESCO World ...
  • 山田 実一; 馬場 朗; 芳澤 伸一; 米良 祐一郎; 李 晃伸; 猿渡 洋; 鹿野 清宏 (電子情報通信学会, 2002-05)
    MLLRと多数話者データベースを用いたHMM音響モデルの教師なし環境雑音適応アルゴリズムを提案する.対象話者の任意の1文発声と居室雑音を入力として音声データベースから環境適応用雑音重畳データを生成することで,話者に負担をかけずに大量の適応用データを得ることができる.具体的な適応処理は以下の3段階からなる.(1)GMMを用いた話者識別を用いて,入力話者と音響的距離の近い話者をデータベースから選択する.(2)(1)の選択話者の読み上げ音声を ...

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