Search Results 1-20 of 7577

  • How to Test Middleware with Coverage-based Greybox Fuzzing  [in Japanese]

    伊藤 弘将 , 松原 豊 , 高田 広章

    … に加え,外部コンポーネントがテスト対象へ提供するインタフェースを考慮する.さらに,依存関係を持つインタフェースに対して同時にfuzzingを実行することで,探索範囲の拡大を試みる.既存の組込み向けTCP/IPスタックを用いたケーススタディでは,開発者らが実施したfuzzingの結果と,提案手法に基づくfuzzingの結果を,ラインカバレッジと検出されたクラッシュの数を指標として比較した.結果として,ラインカ …

    情報処理学会論文誌 62(3), 877-890, 2021-03-15


  • 特集 4種類のレイヤーで理解する 通信プロトコル徹底入門  [in Japanese]

    安藤 正芳

    … Webへのアクセスのように、アプリケーションとしては1つの処理でも、その裏ではTCP/IPをはじめとする様々なプロトコルが連携して動作している。 …

    日経network (251), 20-33, 2021-03

    Nikkei BP 

  • 「1人1波長」で100Gbps 脱TCP/IPで超低遅延 : オールフォトニクス・ネットワーク (特集 NTT「IOWN」の野望 : 光電融合技術を武器に、次世代情報インフラ奪還へ)  [in Japanese]

     APNでは、光伝送装置や波長分割多重(Wavelength Division Multiplexing)技術を生かし、ユーザーや用途ごとにオンデマンドで異なる波長の光パスを割り当て、エンド・ツー・エンドでつなぐ(図1)。現在の商用ネットワークはインターネットのパケット処理などのため…

    日経エレクトロニクス = Nikkei electronics : sources of innovation (1225), 40-47, 2021-03

    Nikkei BP 


    NISHIHORI Yasuhide , EOM Sunyong

    <p>自動運転は,公共交通が不便な中山間地での移動手段確保方策等として期待されている.中山間地では人口密度が低いため,自動運転に対応した道路空間(自動運転対応道路)の効率的な整備が求められる.本稿では,自動運転対応道路の整備優先順位の設定手法を提案し,愛知県豊田市の中山間地に位置する旭地区を対象に,実際の人口分布と道路網を用いて,複数の道路網パターンと優先度指標の分析を行った.その結果 …

    Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management) 76(5), I_937-I_944, 2021


  • Fairness Improvement by Combination of ABR and TCP Algorithms in ABR Video Streaming

    Matsumoto Tomotaka , Yamamoto Miki

    … In MPEG-DASH, the user perceived performance of video playback is determined by the interaction of ABR algorithms on higher layer (application layer) and TCP algorithms on lower layer (transport layer). … In this paper, we evaluate several promising combinations of ABR algorithms in the application layer and TCP algorithms in the transport layer and show that carefully selected combinations can improve fairness among users. …

    IEICE Communications Express, 2021


  • Effect of poly (γ-glutamic acid)/tricalcium phosphate (γ-PGA/TCP) composite for dentin remineralization <i>in vitro </i>

    SU Qing-qing , ZHANG Chao , MAI Sui , LIN Huan-cai , ZHI Qing-hui

    … <p>The poly (γ-glutamic acid)/tricalcium phosphate (γ-PGA/TCP) composite was fabricated as a novel biomineralization material function in preventing caries. … <i>α-</i>TCP, ⅱ. … γ-PGA/TCP, ⅳ. … ANOVA revealed specimens treated by γ-PGA/TCP presented the statistically least lesion depth (<i>p</i><0.01) and mineral loss (<i>p</i><0.001), and the highest hardness (<i>p</i><0.001). …

    Dental Materials Journal 40(1), 26-34, 2021


  • How much platelet-rich plasma can be soak-loaded onto beta-tricalcium phosphate? A comparison with or without a unidirectional porous structure

    Arai Norihito , Yoshioka Tomokazu , Sugaya Hisashi , Kanamori Akihiro , Yamazaki Masashi

    … This study aimed to examine differences in platelet-rich plasma (PRP) soak-loaded volumes of β-tricalcium phosphate (β-TCP) with or without a unidirectional porous structure.</p><p><b>Materials and Methods:</b> …

    Journal of Rural Medicine 16(1), 14-21, 2021


  • Extension to individual TCP transmission of instantaneous throughput based on occupied duration

    Kita Kenji , Uchida Masato , Tokutake Akiharu , Ishikawa Hiroyasu , Shinonaga Hideyuki

    … In this paper, we define and extend the occupied duration in individual TCP transmission, and show an example of analysis compared with the conventional methods.</p> …

    IEICE Communications Express 10(1), 7-12, 2021


  • Preparation of Calcium Phosphate-Biodegradable Polymer Composites with Ion-Releasing Ability for Enhancing Bone Formation

    Kawai Akari , Matsubara Takashi , Maeda Hirotaka , Obata Akiko , Kasuga Toshihiro

    … <p>An inorganic-organic composite material, consisting of bioresorbable β-tricalcium phosphate (β-TCP) and a biodegradable polymer, is one of the most important materials for use in artificial bone with good shapability. …

    MATERIALS TRANSACTIONS 62(1), 118-123, 2021


  • Molecular Mechanism Underlying Derepressed Male Production in Hexaploid Persimmon

    Masuda Kanae , Fujita Naoko , Yang Ho-Wen , Ushijima Koichiro , Kubo Yasutaka , Tao Ryutaro , Akagi Takashi

    … We also identified potential regulators of this co-expression module, represented by the TCP4 transcription factor. …

    Frontiers in Plant Science (11), 567249, 2020-12-22


  • Long-Term Effect of Honeycomb beta-Tricalcium Phosphate on Zygomatic Bone Regeneration in Rats

    Nakagiri Ryoko , Watanabe Satoko , Takabatake Kiyofumi , Tsujigiwa Hidetsugu , Watanabe Toshiyuki , Matsumoto Hiroshi , Kimata Yoshihiro

    … We have developed a new honeycomb beta-tricalcium phosphate (TCP) material, which achieved good bone regeneration after implantation in a rat complete zygomatic bone defect. … In this study, we further investigated the ability of honeycomb beta- TCP for remodeling after bone regeneration as a long-term result. …

    Materials 13(23), 5374, 2020-11-26


  • Geometrical Structure of Honeycomb TCP to Control Dental Pulp-Derived Cell Differentiation

    Takabatake Kiyofumi , Tsujigiwa Hidetsugu , Nakano Keisuke , Inada Yasunori , Qiusheng Shan , Kawai Hotaka , Sukegawa Shintaro , Fushimi Shigeko , Nagatsuka Hitoshi

    … Focusing on the importance of the geometrical structure of an artificial biomaterial to induce cell differentiation and hard tissue formation, we previously have succeeded in developing a new biomaterial, honeycomb tricalcium phosphate (TCP) scaffold with through-holes of various diameters. … In this study, to induce polar odontoblasts, TGC were induced to form odontoblasts using honeycomb TCP that had various hole diameters (75, 300, and 500 mu m) as a scaffold. …

    Materials 13(22), 5155, 2020-11-16


  • Effect of Honeycomb β-TCP Geometrical Structure on Bone Tissue Regeneration in Skull Defect

    Watanabe Toshiyuki , Takabatake Kiyofumi , Tsujigiwa Hidetsugu , Watanabe Satoko , Nakagiri Ryoko , Nakano Keisuke , Nagatsuka Hitoshi , Kimata Yoshihiro

    … In a previous study, we succeeded in developing honeycomb beta-tricalcium phosphate (beta-TCP), which has through-and-through holes and is able to provide the optimum bone microenvironment for bone tissue regeneration. … We demonstrated that beta-TCP with 300-mu m hole diameters induced vigorous bone formation. … In the present study, we investigated how differences in hole directions of honeycomb beta-TCP (horizontal or vertical holes) influence bone tissue regeneration in skull defects. …

    Materials 13(21), 4761, 2020-10-25


  • Efficient Scanning Method with Optimized Scanning Ports and Frequency in Wide Area Network for IoT Devices  [in Japanese]

    石岡 裕 , 松下 一仁 , 和氣 弘明 , 大﨑 光洋 , 種茂 文之

    コンピュータセキュリティシンポジウム2020論文集, 354-361, 2020-10-19


  • Darknet Scan Packet Analysis Using Port Embedding Vector  [in Japanese]

    石川 真太郎 , 小澤 誠一 , 班 涛

    コンピュータセキュリティシンポジウム2020論文集, 1010-1016, 2020-10-19


  • Handoff Characterization of Multipath Video Streaming

    Fujiwara Kazuya , Nagayama Shinichi , Cavendish Dirceu , Nobayashi Daiki , Ikenaga Takeshi

    … Considering that content delivery network providers utilize Video over Hypertext Transfer Protocol/ Transmission Control Protocol (HTTP/TCP) as the preferred protocol stack for video streaming, understanding TCP performance in transporting video streams has become paramount. …

    INTERNET 2020: The Twelfth International Conference on Evolving Internet, 17-22, 2020-10-18


  • BMP-2/beta-TCP Local Delivery for Bone Regeneration in MRONJ-Like Mouse Model

    Mikai Akihiro , Ono Mitsuaki , Tosa Ikue , Ha Thi Thu Nguyen , Hara Emilio Satoshi , Nosho Shuji , Kimura-Ono Aya , Nawachi Kumiko , Takarada Takeshi , Kuboki Takuo , Oohashi Toshitaka

    … This study aimed to evaluate the effects of BMP-2 adsorbed onto beta-tricalcium phosphate (beta-TCP), which is an osteoinductive bioceramic material and allows space retention, on the prevention and treatment of MRONJ in mice. … For prevention studies, BMP-2/beta-TCP was transplanted immediately after tooth extraction, and the mice were administered ZA and CY for an additional 4 weeks. …

    International Journal of Molecular Sciences 21(19), 7028, 2020-09-24


  • Understanding the Malware Propagation in Enterprise Network by Abusing TCP Connection Table  [in Japanese]

    川口 信隆

    … 本稿では,アドレススキャンのかわりに感染端末内のTCP接続情報(TCP Connection Table,TCT)を悪用して組織内ネットワークに拡散するTCTマルウェアに対する特性評価および拡散抑止方式を検討する.まず,1万台以上の端末の通信ログが含まれる公開データセットを用いたシミュレーションにより,TCTマルウェアの拡散速度は数十scan/sのアドレススキャン型マルウェアに相当し,組織内ダークネット監視 …

    情報処理学会論文誌 61(9), 1428-1443, 2020-09-15


  • Evaluation of Poly Lactic-co-Glycolic Acid-Coated β-Tricalcium Phosphate Bone Substitute as a Graft Material for Ridge Preservation after Tooth Extraction in Dog Mandible: A Comparative Study with Conventional β-Tricalcium Phosphate Granules

    Koga Takamitsu , Kumazawa Shinsuke , Okimura Yusuke , Zaitsu Yumi , Umeshita Kazuhiko , Asahina Izumi

    … This study aims to evaluate the safety and efficacy of a poly lactic-co-glycolic acid (PLGA)-coated β-tricalcium phosphate (β-TCP) with N-methyl-2-pyrrolidone (NMP) liquid activator (PLGA/β-TCP) on alveolar ridge preservation after tooth extraction in dog mandible. …

    Materials 13(16), 3452, 2020-08-05


  • Fabrication of Porous β-Tricalcium Phosphate Using Cellulose-Nano-Fiber  [in Japanese]

    佐々木 捷利 , 柴田 裕史 , 橋本 和明

    Journal of the Society of Inorganic Materials, Japan : セッコウ・石灰・セメント・地球環境の科学 27(407), 155-162, 2020-07

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