Search Results 1-20 of 1351

  • Experimental Examination of Air Permeability Depth in Torrent Test  [in Japanese]

    葛山 育海 , 寺西 浩司 , 茂野 僚太 , 寺野 祥司

    日本建築学会東海支部研究報告集 Proceedings of Tokai Chapter Architectural Research Meeting (58), 37-40, 2020-02

  • Preparation of UV-Resistant TPU Nanofiber and Its Application in Anti-Haze Window Screening

    Shao Weili , Xiong JunPeng , Bu Wanjun , Wang Lidan , He Jianxin , Yue Wanli , Ren Gaihuan , Liu Fan , Li Fang , Weng Kai , Li Mengying , Chen Yuankun , Lu Tong

    … <p>With the rapid development of industrialization, the problem of air pollution is becoming more and more serious. … The most uniform is that the transmittance of the fiber film is above 80% and the gas permeability test result is greater than 800 mm/s. …

    Journal of Fiber Science and Technology 76(6), 183-189, 2020

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  • Analysis of the Influence of <i>Porphyromonas gingivalis</i> on the Human Oral Mucosa with a Three-dimensional Construct Model  [in Japanese]

    Takanori RYU , Kunitoshi UCHIDA , Kazuhiko OKAMURA , Mitsutoki HATTA , Jun YAMAZAKI , Ryuji SAKAGAMI

    … その後, 上皮細胞の気相液相境界面培養 (Air-Lift) を行い, 4~8日間培養後に3次元構築モデルサンプルを回収し, HE染色および免疫組織染色法を用いて形態観察を行った. … さらにバリア機能を評価するために, Air-Lift 6日目のサンプルを用いてTERおよびFITC-dextranによる解析を行った.</p><p> 結果 : <i>P.</i> …

    The Japanese Journal of Conservative Dentistry 63(2), 144-155, 2020

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  • EFFECTS OF MIX PROPORTIONS AND CURING METHODS ON AIR PERMEABILITY OF CONCRETE PILLAR MEMBERS  [in Japanese]

    SAITO Masato , SAWAMOTO Takehiro , SHITAMA Koichiro , HIGUCHI Masanori

    <p>本研究では普通ポルトランドセメント(N)および高炉セメントB種(BB)を用いたコンクリート柱部材を作製し、呼び強度、脱型時期および養生方法を変化させた場合の透気係数、含水率、圧縮強度、反発度および音速の関係について検討した。その結果、コンクリートの透気係数を小さくするためには、圧縮強度を大きくするよりも養生を的確に行うことが効果的であった。また、透気係数は圧縮強度および反発度と明 …

    Cement Science and Concrete Technology 73(1), 266-271, 2020

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  • EFFECT OF POLYMER CONTENT ON RESISTANCE TO WATER PERMEATION AND DURABILITY OF POLYMER-MODIFIED MORTARS  [in Japanese]

    DEMURA Katsunori , SAITO Toshikatsu , TAKEDA Masaya

    <p>本研究ではポリマーセメントモルタルの耐透水性及び耐久性に及ぼすポリマー混入率の影響について検討している。その結果、水セメント比、ポリマー混入率、空気量及び細骨材セメント比を考慮したポリマーセメントモルタルの透水量、中性化深さ及び塩化物イオン浸透深さ影響因子を提案している。これらの影響因子とポリマー未混入モルタルの透水量、中性化深さ及び塩化物イオン浸透深さの積から、ポリマーセメント …

    Cement Science and Concrete Technology 73(1), 95-102, 2020

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  • EVALUATION OF ASR DETERIORATION IN RC ROAD BRIDGE DECKS BY THE EXPOSURE TEST  [in Japanese]

    KISHIRA Ryo , MAESHIMA Takuya , KODA Yasuhiro , IWAKI Ichiro

    <p>本研究は、実環境下の道路橋RC床版におけるアルカリシリカ反応(ASR)による劣化性状について実験的に明らかにしたものである。鋼主桁上に実物大RC床版を架設し屋外暴露することで実橋における環境作用と主桁による拘束を再現し、長期的に各種計測を実施した。その結果、実環境ではASRの温度依存性により膨張量は周期的変動を有し、劣化の進行に伴い膨張開始温度が低下する傾向を示した。また、偏光顕 …

    Cement Science and Concrete Technology 73(1), 303-310, 2020

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  • Study on the water environment change in Miyake-jima with considering the influence of volcanic activity (1)  [in Japanese]

    Sato Atsuki , Matsumoto Tatsuyuki , Kodera Koji , Igari Yoshihiro , Yamaki Go

    <p><b>Ⅰ はじめに</b></p><p></p><p> 三宅島は人口約2,400人、面積は55.5㎢の火山島である。島の中央に存在する雄山は噴火を繰り返しており、最近では1983年と2000年に噴火し、島民は島外へ避難を余儀なくされた。地質は玄武岩に覆われているが、噴火の影響を受けた荒地では、表層の土砂流出が …

    Proceedings of the General Meeting of the Association of Japanese Geographers 2020s(0), 140, 2020

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  • INFLUENCE OF THE THERMAL PERFORMANCE OF PVC WINDOWS FOR RESIDENTIAL BUILDINGS ONTO HEATING LOAD OF WINDOWS FOR COLD REGIONS  [in Japanese]

    TAKADA Kazunori , HAYAMA Hirofumi , MORI Taro , KIKUTA Koki

    … In order to carry out this investigation the Taguchi method for trial calculations was used while studying appendage of windows, the thermal transmittance of windows, the solar heat gain coefficients of windows and the air permeability of windows, and examining their influence on heating load of windows, as well as demonstrating the reduced configuration of heating load of windows.</p> …

    AIJ Journal of Technology and Design 26(62), 173-178, 2020

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  • Development of the air filter established both high particle collection and high air permeability  [in Japanese]

    竹内 和昭 , 森山 修 , 中根 健佑

    Toyota Boshoku technical review = トヨタ紡織技報 13, 27-30, 2019

  • Development of the air filter established both high particle collection and high air permeability

    Takeuchi Kazuaki , Moriyama Osamu , Nakane Kensuke

    Toyota Boshoku technical review 13, 30-33, 2019

  • Evaluation of Physical Properties of Concrete Using Artificial Lightweight Aggregate in The Hot Weather Environment  [in Japanese]

    当銘 葵 , 肥後 康秀 , 早川 隆之 , 小山 智幸

    太平洋セメント研究報告 (176), 37-46, 2019

  • Effect of Air Permeability of Ski Jumping Suit Fabric on Stall Characteristics  [in Japanese]

    KATAOKA Yuki , TAKAHASHI Toru , HASEGAWA Hiroaki , MURAKAMI Masahide , SEO Kazuya

    … Generally, it is assumed that lower air permeability of ski jumping suit fabric is advantageous for getting more lift. … Therefore, one of the regulations for ski jumping competition is that the outstretched fabric should have a medium air permeability of a minimum of 40 L/m<sup>2</sup>/s at a water pressure of 10 mm Aq. …

    The Proceedings of the Symposium on sports and human dynamics 2019(0), B-3, 2019

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  • Measurement of gas permeability of porous anodes in solid oxide fuel cells  [in Japanese]

    HIGUCHI Kazuhiro , KISHIMOTO Masashi , IWAI Hiroshi , SAITO Motohiro , YOSHIDA Hideo

    … The purpose of this study is to measure the permeability of a porous Ni–YSZ (yttria-stabilized zirconia) cermet used for SOFC anodes and to reveal the relationships between its microstructure and the permeability. … The pressure difference formed between both sides of the anode disks is measured at various permeation flow rate of the air. … Then, the permeability of each disk is calculated from Darcy’s law. …

    The Proceedings of the National Symposium on Power and Energy Systems 2019.24(0), C142, 2019

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  • Comfort of Lining Fabrics for Midsummer Business Trousers  [in Japanese]

    YOSHIZAWA Chisa , HIRATA Kozo

    <p>異なる裏地の素材・撚糸及び表地との組合せの違いが,盛夏用ビジネスパンツの着用快適性に影響するか否か検証し,好適な商品設計の基礎的アイデアを得ることを目的として,被験者による2 種類の着用実験を行った.官能評価では被験者14 名,温熱生理評価では1 名とした.その結果パンツの清涼感,触感,好感度,温熱快適性,動作快適性は,裏地の素材や構造,および表地との組合せにより異なることが判明 …

    JOURNAL of the JAPAN RESEARCH ASSOCIATION for TEXTILE END-USES 60(12), 1088-1097, 2019

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  • Development of Concrete Inspection Robot with Dual Stage Suckers

    Matsumoto Yuta , Kurashige Isao , Yoneda Kan

    … <p>To automate nondestructive inspections for concrete walls by measuring their air permeability, we developed a wall climbing robot with suckers. … The central sucker is a triple ring type, making it useful for climbing and measuring as well as acquiring the air permeability data in the depth direction. …

    Journal of Robotics and Mechatronics 31(6), 816-826, 2019

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  • Improvement of Gas Permeability of Gas Permeable Mold with Lattice Structure for Reduction of Transfer Failure in Photoimprint Lithography

    Sugino Naoto , Kurematsu Kazuho , Mizui Kento , Hanabata Makoto , Takei Satoshi

    … <p>In the nanoimprint process, the transfer failure due to the air involved from pressing the mold against the transfer material and the gas generated from the transfer material has been reported as a serious problem. …

    Journal of Photopolymer Science and Technology 32(4), 627-632, 2019

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  • STUDY ON REDUCTION OF UPLIFT PRESSURE BY AIRBAG  [in Japanese]

    OMATA Teppei , ITO Kazunori , HASHIMOTO Atsushi

    <p> 桟橋など床版を有する臨海構造物には,構造上の高さ制約等から,津波や波浪による揚圧力を回避できない場合がある.また,水面が床版に衝突する際に十分な空気層を介し,水が直接衝突しない場合には,衝撃揚圧力は低減されることが確認されている.そこで,エアバックを床版下面に設置する対策を提案し,その揚圧力低減効果について,小型および実機模型を使用した水理模型実験と,エアバック素材の物性をパラ …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75(2), I_895-I_900, 2019

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  • A new explicit analytical solution to axisymmetric consolidation of vertical drain in unsaturated soils

    Qin Aifang , Li Tianyi , Sun Dean

    … In the derivation, the decoupling process is employed to convert the governing equations of excess pore-air and pore-water pressures into essentially the same homogeneous partial differential equations (PDEs). … Finally, the changing regularity of excess pore-air pressure, excess pore-water pressure and normalized settlement are studied against the ratios of air-water permeability, the ratios of radial-vertical permeability and depth. …

    Japanese Geotechnical Society Special Publication 7(2), 456-462, 2019

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  • A System to Measure Permeability of Unsaturated Soils using Local Pin-Type Sensors in Triaxial Apparatus

    Tian Jaylord U. Tan , Koseki Junichi , Wang Hailong , Kyokawa Hiroyuki , Sato Takeshi

    … <p>This paper describes development of a triaxial permeameter apparatus for measuring coefficient of permeability of unsaturated soils by directly measuring the head difference between two points in a specimen using local pin-type sensors. … Typical results show that the steady state flow condition can be achieved by using membrane filters to allow passage of water but prevent flow of free air. …

    Japanese Geotechnical Society Special Publication 7(2), 305-309, 2019

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