Search Results 1-20 of 1331

  • Hybrid Energy Storage System Composed of Electric and Hydrogen Energy Storage Systems Suitable for Large-Capacity Emergency Power Supply and Effective Use of Renewable Energy  [in Japanese]

    TSUDA Makoto , NAGASAKI Yoh , MIYAGI Daisuke

    … <p>We propose a "hybrid energy storage system composed of electric and hydrogen energy storage systems" and perform verification tests for demonstrating that the hybrid energy storage system proposed is effective for improving the utilization rate of renewable energy and can be used for large-capacity emergency power sources that do not require external fuel procurement. …

    TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 55(1), 28-35, 2020

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  • Evaluation of Ammonia Pretreatment for Enzymatic Hydrolysis of Sugarcane Bagasse to Recover Xylooligosaccharides

    Tsutsui Sosyu , Sakuragi Kiyoshi , Igarashi Kiyohiko , Samejima Masahiro , Kaneko Satoshi

    … In the present study, we examined the efficacy of ammonia pretreatment for selective release of hemicellulose from bagasse. … The hydrolysis rate of xylan in bagasse pretreated with aqueous ammonia was approximately 50 %. …

    Journal of Applied Glycoscience, 2020

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  • Thermal hazard evaluation of runaway polymerization of acrylic acid

    Fujita Michiya , Izato Yu-ichiro , Iizuka Yoshiaki , Miyake Atsumi

    … To clarify the thermal hazards of acrylic acid runaway polymerization, the amount of energy release and the products in each event of the polymerization sequence were investigated. … The thermal hazard was analyzed using accelerating rate calorimetry (ARC), Karl-Fisher titration, and thermogravimetry-differential thermal analysis-mass spectrometry (TG-DTA-MS). …

    Process Safety and Environmental Protection (129), 339-347, 2019-09

    IR 

  • LOAD CALCULATION METHOD BASED ON HEAT BALANCE MODEL IN BLOCKS:Estimation method of cooling load due to train wind in an underground station: Part 3  [in Japanese]

    KIMURA Kentaro , TANITA Naoyuki , SATOH Makoto , SATO Masafumi , SHIBATA Katsuhiko , KONDO Yasushi

    … reason why the cooling loads of underground stations have been much lower is that the heat release from train brake systems and car-cooling systems has decreased because of improvements in train mechanics.<br> In a previous report, the pressure loss coefficient of the tunnel was identified from the train wind speed measurement result at the edge of the platform, and a computational fluid dynamics (CFD) analysis revealed the air volume at each station and the domestic influence coefficient of the train wind.<br> In the previous …

    Journal of Environmental Engineering (Transactions of AIJ) (757), 313-321, 2019-03

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  • Evaluation of interfacial strength of multilayer thin films polymer by nanoindentation technique

    井上 健司 , Inoue Kenji , Triawan Farid , Triawan Farid , 因幡 和晃 , Inaba Kazuaki , 岸本 喜久雄 , KISHIMOTO KIKUO , 西 将史 , Nishi Masashi , 関谷 道代 , Sekiya Michiyo , 関戸 邦彦 , Sekido Kunihiko , 斉藤 章人 , Saitoh Akihito

    … In this work, the interfacial strength of a multilayer thin-film polymer was quantified by measuring the interfacial energy release rate (interfacial fracture toughness), Gi, using the nanoindentation test technique. … The measured Gi tended to increase as the range between the two unloading curves used to calculate the delamination energy widened. …

    Bulletin of the JSME, Mechanical Engineering Journal 6(No. 1), 18-00326, 2019-02

    IR 

  • Mechanical properties of patch plate bonded steel plate on one side under axial loading  [in Japanese]

    Mizutani Morimune , Sakamoto Takahiro , Ishikawa Toshiyuki , Horii Hisakazu

    … The energy release rate which is one of the criterion of debonding of patch plate. … Finally, by the tensile test of patch plate bonded steel plate on one side, the energy release rate and principal stress calculated from the shear and peel stresses in adhesive proposed in this study were verified using the reference fracture envelope.</p> …

    Journal of Structural Engineering, A 65A(0), 755-768, 2019

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  • Required length and energy release rate of CFRP bonded onto steel plate considering with effect of matrix resin  [in Japanese]

    Mizutani Morimune , Ishikawa Toshiyuki , Kitane Yasuo

    … As the results of the analysis, it was found that the matrix resin does not affect the energy release rate which is one of the criterion of debonding of CFRP. …

    Journal of Structural Engineering, A 65A(0), 745-754, 2019

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  • INFLUENCE OF ARTIFICIAL RADIONUCLIDE DEPOSITED ON A MONITORING POST ON MEASURED VALUE OF AMBIENT DOSE RATE

    Hiraoka H. , Hokama T. , Munakata M.

    … In Japan, monitoring posts (MPs) are placed around nuclear facilities to measure ambient dose rate. … When it exceeds 20 μSv/h at an accidental release of radionuclides, it is stipulated that inhabitants should temporarily relocate (OIL 2) within one week. … It is judged by the measured value of the dose rate by MPs. …

    The Proceedings of the International Conference on Nuclear Engineering (ICONE) 2019.27(0), 2303, 2019

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  • Fundamental study on the filtered containment venting system for decommissioning of the Fukushima Nuclear Power Plant  [in Japanese]

    TRAN Tri Vien , TAKAHASHI Hideharu , NARABAYASHI Tadashi , KIKURA Hiroshige

    … Therefore, the air cleaning system should be needed to prevent the release of radioactive materials into the environment. … In this study, the behavior of bubble distribution in the two-phase flow of the wet-type filter layer was investigated for the difference of the air injection flow rate. …

    The Proceedings of the National Symposium on Power and Energy Systems 2019.24(0), B143, 2019

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  • ADSORPTION BEHAVIOR OF CESIUM ON CALCIUM SILICATE INSULATION OF PRIMARY PIPING SYSTEM IN FUKUSHIMA DAIICHI NPP UNIT 2

    Rizaal Muhammad , Saito Takumi , Erkan Nejdet , Okamoto Koji , Osaka Masahiko , Nakajima Kunihisa , Nishioka Shunichiro

    … Tokyo Electric Power Company Holdings, Inc. (TEPCO) reported a unique dose rate distribution during investigation in the primary containment vessel (PCV) of Fukushima Daiichi Nuclear Power Plant unit 2 pedestal area in JanuaryFebruary 2017. … The pedestal area, in regard to the accident progression, should exhibit a higher dose rate than those of any other locations at the same reference level because pedestal area was the most affected area after the accident. …

    The Proceedings of the International Conference on Nuclear Engineering (ICONE) 2019.27(0), 2035, 2019

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  • SIMPLE BENCHMARK STUDY ON CT SPECIMEN FAILURE PREDICTION USING THE GP METHOD

    Han LIU , Bin ZHENG , Samuel JULES , Hai XIE , Jiesheng MIN , Furui XIONG

    … In parallel to conventional approaches, a significant amount work has been performed over the past 20 years in France to adapt the historic Griffith energy release-rate approach to engineering space. … Within EDF R&D, Lorentz and Wadier have since then improved the model which is based on several ingredients including the application of an energy minimization principle, the definition of a specific damage model and the use of a notch to represent the crack. …

    The Proceedings of the International Conference on Nuclear Engineering (ICONE) 2019.27(0), 1804, 2019

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  • EFFECT OF NEW DRYWELL COOLER APPLICATION FOR VENTING START TIME DURING SEVERE ACCIDENTS

    Ishida Naoyuki , Nagata Yasunori , Kimura Ryusuke , Ando Koji

    … Considering the gas release from these venting systems, it is desirable to delay venting start time or to avoid operation of the systems by ensuring sufficient PCV cooling (in view of the time needed to evacuate residents). … We have already conducted element tests using a small tube bundle to confirm the occurrence of natural circulation flow with the DWC_SA configuration and to measure heat transfer rate of condensation with non-condensable gas (NCG). …

    The Proceedings of the International Conference on Nuclear Engineering (ICONE) 2019.27(0), 1324, 2019

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  • Crack Onset Judgement Diagram Using Crack Arrester

    HIROSE Yasuo , YOSHIDA Keishiro

    … This concept is to install materials with higher stiffness on the crack propagation path and induce the redistribution of the load between the foam core area near the crack tip and the leading edge of the crack arrester in order to decrease the energy release rate at the crack tip less than the interfacial fracture toughness. …

    Materials System 36(0), 5-9, 2019

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  • Shape optimization problem based on the generalized J integral considering RANS and Snapshot POD

    NAKAZAWA Takashi

    … To date, J integral has been used to evaluate the energy release rate of stress concentrated near cracks or corners in the field of fracture mechanics. …

    Journal of Fluid Science and Technology 14(3), JFST0015-JFST0015, 2019

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  • Effects of 5•1•7 Phase Seed Crystal on Performance of Magnesium Oxysulfate Cement

    Wu Chengyou , Luo Kejia , Zhang Huifang , Yu Hongfa

    … X-ray diffraction, scanning electronic microscopy, hydration-heat release rate, and mercury intrusion porosimeter are performed to explain the influence mechanism of SC on the performance of the MOS cement. …

    Journal of Advanced Concrete Technology 17(10), 603-615, 2019

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  • Effect of Mechanical Properties of Adhesive on Mode II Fatigue Crack Growth Behavior in Adhesively Bonded CFRP/Al Joints  [in Japanese]

    TODA Naoki , KUSAKA Takayuki , MORI Naoki , KATOU Hiroyuki

    … <p>Evaluation error of energy release rate that caused by deformation by shearing force in ENF tests was minimized by proposed method. … Microscopic fracture morphology of brittle adhesive was not depend on crack growth rate, however, ductile adhesive depend on that.</p> …

    The Proceedings of Conference of Kansai Branch 2019.94(0), 214, 2019

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  • ショックウェーブを使った運動器疾患へのアプローチ  [in Japanese]

    Brown Farley

    … </p><p>Radial Pressure wave therapy (RPW) is the application of medium high-intensity acoustic pressure, (high - energy acoustic waves - shock waves). … The effect of positive pressure causes the release of substance P and Nitric oxide. …

    Congress of the Japanese Physical Therapy Association 46S1(0), H1-88-H1-88, 2019

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  • Performance Enhancement of Chemical Heat Pump Unit Driven by Industrial Waste Gas Heat  [in Japanese]

    Kikuchi Yoshitaka , Ishiyama Yudai , Fujita Hiroki , Hirata Kazuhiro , Nakajyo Terunobu , Ogura Hironao

    … From the viewpoints of energy and environmental problems in the world, effective thermal energy utilization has been one of the most important issue in the world. … The CHP can store unutilized thermal energy such as industrial waste heat in the form of chemical energy, and release it at various temperature levels during the heat demand period. …

    Journal of Japan Society of Energy and Resources 40(4), 111-118, 2019

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  • Effect of Interlayer Fracture Characteristics for Axial Crush of FRP Tube  [in Japanese]

    KOIKE Asao , AKITA Reika , YOKOYAMA Atsushi

    … <p>When a compressive load is applied to a Fiber Reinforced Plastics (FRP) tube, a continuous fracture phenomenon called "progressive crushing" which shows highly effective energy absorption appears. … In the study, the difference in fracture form due to fracture toughness values, and crack propagation characteristics under the condition with the same energy release rate was considered by using the model. …

    Journal of the Society of Materials Science, Japan 68(6), 457-462, 2019

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  • EXPERIMENTAL STUDY ON CRITICAL ENERGY RELEASE RATE OF TENSILE AND COMPRESSIVE FAILURE MODES IN FIBER DIRECTION OF GFRP  [in Japanese]

    KITAMURA Yuto , KITANE Yasuo

    … In the progressive damage analysis, the critical energy release rate is used to define the stress-strain relation after the initiation of damage. … In this study, compact tension test (CT test) and compact compression test (CC test) were carried out to obtain the critical energy release rate of tensile and compressive failure modes in fiber direction of GFRP. …

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 75(5), II_36-II_43, 2019

    J-STAGE 

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