Search Results 1-20 of 224

  • Effects of heating on the physical properties of premixed calcium silicate-based root canal sealers

    Yamauchi Shinya , Watanabe Satoshi , Okiji Takashi

    … Endoseal MTA, Well-Root ST, EndoSequence BC Sealer, EndoSequence BC Sealer HiFlow, and AH Plus (epoxy resin root canal sealer) were heated at 100°C for 1 min, and changes in setting time, flow, and film thickness were evaluated in accordance with ISO 6876:2012 standards. … In addition, pH measurement and scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analyses of the set materials were performed. …

    Journal of Oral Science 63(1), 65-69, 2021

    J-STAGE 

  • Simultaneous synthesis of TiN–Si<sub>3</sub>N<sub>4</sub> composite powders from TiSi<sub>2</sub> in NH<sub>3</sub> atmosphere

    ALHUSSAIN Hanan , MISE Takuto , KOBAYASHI Kohei , KIYONO Hajime

    … flow in a temperature range of 1,100 to 1,300 °C. … The composition and morphology of the resulting composites were characterized by X-ray powder diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. … flow, TiSi<sub>2</sub> …

    Journal of the Ceramic Society of Japan 128(10), 677-684, 2020

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  • Preparation and Properties of Spherical Natural Rubber/Silica Composite Powders via Spray Drying

    Tang Siah Ying , Sopanon Prachaya , Tanthapanichakoon Wiwut , Soottitantawat Apinan

    … The morphology and physical properties of resultant rubber composite powders were characterized by scanning electron microscopy with energy dispersive X-ray spectrometry, laser light scattering particle sizer and thermogravimetric analyzer. … Marginal growth in particle size was observed with increasing feed flow rate. …

    KONA Powder and Particle Journal 37(0), 214-223, 2020

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  • Hardening Mechanism and Time on Silica-Based Solidifying Material as Ground Improvement Material  [in Japanese]

    INAZUMI Shinya , SHINSAKA Takashi , HASHIMOTO Ryo , IWAMOTO Haruki

    … In this study, in order to elucidate the solidification mechanism, energy dispersive X-ray analysis (EDS analysis), scanning electron microscope observation (SEM observation) and X-ray diffraction analysis (XRD analysis) have been conducted. … On the contrary, the uniaxial compression test, and the flow test are carried out to investigate the usefulness and solidification mechanism in view of practical application.</p> …

    Journal of the Society of Materials Science, Japan 69(1), 91-96, 2020

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  • Effect of Rotation Speed on Electric Damage of Copper Tribo/Electric Rolling Pairs under Lubricated Single-Point Contact

    Liu Zili , Song Chenfei , Li Jiawei , Hou Xinbin , Wang Li , Zhang Yongzhen

    … The breakdown behaviors were monitored and the material damages were observed by Optical Metallograph Microscope (OMM), Scanning Electron Microscope (SEM), Energy Dispersive Spectrometer (EDS) and White Light Interference Profilometer (WLIP). … Electric discharge erosion and the plastic flow of grains could be formed when the applied voltage exceeded the breakdown voltage. …

    MATERIALS TRANSACTIONS 61(1), 111-118, 2020

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  • APPLICATION OF NUMERICAL WAVE FLUME AND ITS INTEGRATION WITH 1D MODEL FOR TSUNAMI BORE GENERATED BY ELECTRIC SLUICE GATE  [in Japanese]

    KAJIKAWA Yuki , WATANABE Masatoshi , KUROIWA Masamitsu , TAKEDA Masahide , KURAHARA Yoshinosuke , HARA Chisato , NISHIYAMA Yamato

    … <p> In the present study, the authors developed a numerical model integrated a two-dimensional vertical model and an one-dimensional dispersive wave model in order to predict a tsunami bore generated by the electrit sluice gate with high accuracy and efficency. … The CADMAS-SURF/2D was adopted for the two-dimensional vertical cross-section flow model, and the tsunami bore generator by the gate was installed into the CADMAS-SURF/2D. …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75(2), I_373-I_378, 2019

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  • Plasma Wave Observation in Space Via Scientific Satellites  [in Japanese]

    KOJIMA Hirotsugu

    … Since plasmas are dispersive media, plasma waves show various features depending on how and which plasma wave modes interact with particles. …

    JAPANESE JOURNAL OF MULTIPHASE FLOW 33(3), 275-282, 2019

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  • Derivation of a Nonlinear Wave Equation for High Speed and High Frequency Pressure Waves in Bubbly Liquids  [in Japanese]

    YOSHIMOTO Takanori , KANAGAWA Tetsuya

    <p>This paper derives a nonlinear wave equation for plane progressive quasi-monochromatic waves in an initially quiescent compressible liquid containing many spherical microbubbles. Main assumpt …

    JAPANESE JOURNAL OF MULTIPHASE FLOW 33(1), 77-86, 2019

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  • STUDY ON IMPROVEMENT OF CALCULATION ACCURACY OF TSUNAMI BORE GENERATED BY ELECTRIC SLUICE GATE  [in Japanese]

    梶川 勇樹 , 松田 信彦 , 武田 将英 , 江口 三希子 , 西山 大和 , 黒岩 正光

    土木学会論文集. B2, 海岸工学 Journal of Japan Society of Civil Engineers. 土木学会海岸工学委員会 編 74(2), I_169-174, 2018

  • STUDY ON IMPROVEMENT OF CALCULATION ACCURACY OF TSUNAMI BORE GENERATED BY ELECTRIC SLUICE GATE  [in Japanese]

    KAJIKAWA Yuki , MATSUDA Nobuhiko , TAKEDA Masahide , EGUCHI Mikiko , NISHIYAMA Yamato , KUROIWA Masamitsu

    …  In the presented study, the authors investigated improvement of calculation accuracy of a 1D nonlinear dispersive model in order to reproduce complex tsunami bore generated by an electric sluice gate with high accuracy. …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 74(2), I_169-I_174, 2018

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  • THE STUDY OF THE COMPLEX TSUNAMI WAVEFORM GENERATION USING THE ELECTRIC SLUCE GATE  [in Japanese]

    MATUDA Nobuhiko , TAKEDA Masahide , EGUCHI Mikiko , NISHIYAMA Yamato

    … The massive tsunami continued for several tens of minutes, and the water level and flow velocity changed over time complicatedly. … The authors are developing a new tsunami generator using the electric sluice gate that can control the flow rate continuously. …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 74(2), I_181-I_186, 2018

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  • Geochemical identification of individual glass shards from pyroclastic flow deposits intercalated in drill core at the Nagata River mouth in Kagoshima City, based on major and trace element compositions  [in Japanese]

    Furusawa Akira , Oki Kimihiko , Miyawaki Ri-ichirou

    … <p>Drill core, known as the Taniyama boring core, from the mouth of the Nagata River in Kogoshima city, southwest Japan, contains five pyroclastic flow deposits. … The Kakuto, Kobayashi, and Hiwaki (Shimokado) pyroclastic flow deposits were identified through particle composition analysis and the refractive index of glass shards in the flow deposits. …

    The Journal of the Geological Society of Japan 124(6), 435-447, 2018

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  • Reductive Decomposition of Nitrite in a Continuous-Flow Reactor Using Fixed-Bed Structural Pd Catalysts

    Sugiyama Shigeru , Fukushima Naozumi , Tsuchiya Yuto , Katoh Masahiro , Hayashi Yukimi , Arai Yuka , Akamatsu Masamori

    … However, the use of a fixed-bed operation when recycling aqueous nitrite with palladium catalyst systems could result in either negligible activity when using a carbon monolith impregnated with Pd, or could stop the flow by enhancing the pressure drop when using non-porous alumina spheres coated with Pd/C or structural catalysts consisting of a polyurethane sponge skeleton impregnated with Pd. …

    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 51(1), 83-88, 2018

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  • Whispering gallery resonators for optical sensing

    Ramgopal Madugani , Sho Kasumie , Yong Yang , Jonathan Ward , Fuchuan Lei , Síle Nic Chormaic

    … Here, we will discuss environmental sensing applications, such as pressure, flow, and temperature using ultrahigh Q-factor microspheres fabricated from ultrathin optical fiber and microbubbles fabricated from pretapered glass capillary. …

    Proceedings of SPIE (10323), 2017-04-23

    IR 

  • MEASUREMENT OF WATER SURFACE VARIATIONS OVER A ROUGH BED USING SAMPLING MOIRE METHOD  [in Japanese]

    TANI Kojiro , FUJITA Ichiro , YOSHIMURA Hideto

    … The target flow was a shallow open-channel flow roughened by density packed grass marbles. … According to the results, the effect of dispersive gravity waves travelling on the surface was greater than non-dispersive waves advected by the turbulence. …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 73(4), I_571-I_576, 2017

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  • STUDY ON THE METHOD OF CREATING CONTROL DATA FOR TSUNAMI BORE GENERATED BY THE ELECTRIC SLUICE GATE  [in Japanese]

    KAJIKAWA Yuki , MATSUDA Nobuhiko , TAKEDA Masahide , IWAMOTO Hiroaki , EGUCHI Mikiko , KUROIWA Masamitsu

    … Accordingly, in this study, in order to develop an efficient method of the creating control data for tsunami bore generated by the electric sluice gate, we proposed a tsunami bore generation control model in which the control data is created from a repeat calculation of 1D nonlinear dispersive model. … The control model was able to output the control data under which the first dispersive wave height and the tsunami bore wave height could be reproduced in the experiment from input of the targeted wave profile. …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 73(2), I_271-I_276, 2017

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  • Dispersion State of Catalytic Metal Supported on Bio-Char Elucidated Using Energy Dispersive X-ray Spectroscopy: Effects of Catalyst Type and Heating Process

    HANAOKA Toshiaki , OKUMURA Yukihiko

    … at atmospheric pressure after being heated to 1023-1323 K under an Ar flow. … before heating) and (2) heating under an Ar flow (<i>i.e.</i> … just before gasification) were observed using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). …

    Journal of the Japan Institute of Energy 96(3), 73-85, 2017

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  • Effects of Pitched Tips of Novel Kneading Disks on Melt Mixing in Twin-Screw Extrusion  [in Japanese]

    Nakayama Yasuya , Nishihira Nariyoshi , Kajiwara Toshihisa , Tomiyama Hideki , Takeuchi Takahide , Kimura Koichi

    … We discuss the effects of the tip angle in ptKD on mixing characteristics based on numerical simulation of the flow in the melt-mixing zone under different feed rates and a screw rotation speed. … Furthermore, pitched tips of backward direction increase the mean applied stress on the fluid elements during its residence in the melt-mixing zone, suggesting the enhancement of dispersive mixing quality in ptKD. …

    Nihon Reoroji Gakkaishi 44(5), 281-288, 2017

    J-STAGE 

  • Notes on the pyroclastic flow deposits newly found from wells at the ruins of Kagoshima Castle, Kagoshima City  [in Japanese]

    大木 公彦 , 古澤 明 , 中原 一成

    … Pyroclastic flow deposits were found from three wells drilled for survey of basement rocks on the ruins of Kagoshima Castle, Kagoshima City. … This pyroclastic flow deposits are overlain by the Shiroyama Formation which is marine sediments in the last interglacial epoch and is thought to overlies the Yoshino pyroclastic flow deposits from the data of the other well. …

    鹿児島大学理学部紀要 = Reports of the Faculty of Science, Kagoshima University (49), 31-39, 2016-12-30

    IR 

  • Modeling turbulent and dispersive heat transfer in porous media  [in Japanese]

    Tsuda Koji , Chikasue Ryu , Suga Kazuhiko

    … In this study, the regularized D3Q19 SRT model is applied to the thermal fields whilst the D3Q27 MRT model is applied to the flow fields. …

    The Proceedings of the Thermal Engineering Conference 2016(0), I121, 2016

    J-STAGE 

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