Search Results 1-20 of 405

  • Disclosure of Social Impact of Social Businesses : Focusing on Factors of Ecolabel Design  [in Japanese]

    川原 尚子 , 入江 賀子

    … [Abstract]This study explores the viewpoints of the classification of ecolabels and comparatively examines ecolabels related to electric power to investigate how ecolabels can effectively disclose the social information of social businesses. … We aimed to determine how disclosing the social impact of social businesses increases profits of businesses, and results in greater freedom of consumers' choice and the reduction of information asymmetry. …

    商経学叢 67(1), 1-24, 2020-09



    TANAKA Shunya , NAKAJIMA Yusuke

    … These technologies should be used as environmental education, but the actual situation regarding environmental education and operation of environmentally conscious technology has not been reported. … We conducted a survey on the current status of environmental education in eco-schools and general primary schools where solar power generation has been introduced and the current status of operation of environmentally conscious technologies. …

    Journal of Environmental Engineering (Transactions of AIJ) (769), 237-247, 2020-03


  • Oxygen reduction from flammable off-gas for solid oxide fuel cell so as to avoid anode deterioration

    Deguchi Seiichi , Kobayashi Noriyuki , Isu Norifumi

    … In the present study, chemical equilibrium FactSage computations with an actual flammable off-gas have been firstly done for designing a prototype O2 reducing apparatus to convert the off-gas into safe SOFC fuel and determining a thermal pretreating temperature range. …

    Journal of Power Sources (448), 227449, 2020-02


  • Study on Natural Energy Usage and Energy Independence in Wooden Detached House (Part1) Evaluation of Outside Air Load Reduction for Roof Thermal Collection and Earth Tube Based on Yearly Measurements  [in Japanese]

    NISHIKAWA Toyohiro , MOCHIDA Masanori , MARUYA Hiroo , KOIZUMI Toshiaki

    … <p>To evaluate the effectiveness of using natural energy in wooden houses, this study uses long-term measurements in actual homes to measure the extent to which the outside air load is reduced by solar heating and thermal storage, etc., and clarify the level of energy independence achieved by solar power. …

    Journal of Japan Solar Energy Society 46(6), 55-60, 2020


  • Performance of high-temperature high-pressure boiler for waste-to-energy power plant with stoker-type furnace  [in Japanese]

    Okamoto Arihiro , Cho Hiromitsu

    <p>近年、廃棄物処理施設においては、衛生処理や環境負荷の軽減という側面に加え、廃棄物による高効率発電が求められてきている。一般廃棄物処理施設における高効率発電において、近年ではボイラ仕様として、4MPa×400℃の蒸気条件が一般化しているが、更なる高効率化のニーズが存在している。そうした背景の中、令和元年12月31日に三重県の桑名広域清掃事業組合/資源循環センター(通称「リサイクルの …

    Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 31(0), 289, 2020


  • Method of Priority Order for Simultaneous Solar-Derived Power Usage at a Solar-Powered House and Neighborhood

    Nasu Satoko , Tajima Shota , Sugai Yasuo

    … <p>An advantage of solar-powered houses is the concurrent generation and consumption of power. … However, the simultaneous power consumption of a solar-powered house tends to be lower than its actual load consumption. … We aim to design a multi-agent system for exchanging the power value information within a solar-powered house and neighborhood in order to maximize simultaneous solar-derived power usage. …

    International Journal of Automation Technology 14(6), 1013-1024, 2020


  • New Type Turbo Blower Saves Energy & Stable Operation With IoT:―Air Foil Bearing Variable Speed Single Stage Turbo Blower TurboMAX―  [in Japanese]

    Masuda Tsuyoshi

    <p>大量の水を消費・廃棄する製紙産業にとって,排水処理費用の削減は大きな課題である。排水処理工程において,曝気ブロワは消費電力が大きく24時間連続運転であることが多いため,曝気ブロワの高効率化は排水処理費用削減に大きく貢献する。当社のターボブロワ「TurboMAX」はこのニーズに応える新型ブロワである。</p><p>TurboMAXは,空気軸受,永久磁石同期モ …

    JAPAN TAPPI JOURNAL 74(7), 702-705, 2020


  • "Servolution" Service Approach as a Life Cycle Partner "Process Audit"  [in Japanese]

    Tachikawa Yasushi

    <p>近年の紙及び板紙市場の構造の変化に伴い,お客様の生産現場は人員削減及び操業の効率化を特に求められるようになってきている。そのような環境の変化の中,IHIフォイトペーパーテクノロジーはライフサイクルパートナーとしてメンテナンス事業(Products & Services事業)に注力しており,省エネや効率化,操業安定化に貢献できるような製品とサービスを強化している。サービスの …

    JAPAN TAPPI JOURNAL 74(4), 329-334, 2020


  • Influences of Gas Fuel Injection Pressure on Combustion Stability of Low Combustion-Driven Oscillation Center-Firing Gas Burner  [in Japanese]

    TSUMURA Toshikazu , UEDA Toshihisa , KAWAGUCHI Osamu

    … For example, gas fuel flow control system can be simplified, and smaller size gas pipes for high pressure gas fuel are effective for cost reduction. … Center firing gas burners equipped with the developed nozzle under operation at high pressure of 410 kPa(G) were applied to the actual industrial boiler whose steam production capability was 90 ton/h. …

    Journal of the Combustion Society of Japan 62(200), 161-168, 2020


  • Study on Operation and Required Capacity Evaluation of Batteries Contributing to Reduction of Tap Change Operation of Voltage Regulation Device  [in Japanese]

    Nakamura Yuta , Aoki Mutsumi , Kanazawa Yuki , Uenishi Hirokazu

    … <p>Promotion of photovoltaic power generation (PV) is accelerated in the world, however, large voltage fluctuation by massive PVs in distribution system may cause frequently operation of voltage regulation device such as LRT and SVR. … This paper proposes novel operation method of batteries for contributing to reduction tap-change operation of LRT and SVR considering distribution system loss. …

    IEEJ Transactions on Power and Energy 140(6), 474-483, 2020


  • Assessment of effect of miniature sample scoop on creep life of 9Cr steel piping  [in Japanese]

    YAGUCHI Masatsugu , KANAI Masayuki , KOMAZAKI Shin-ichi , KUMADA Akihiro

    … On the other hand, no creep life reduction was observed in the materials with the depth ratio of 5%. … Finite element analyses were conducted on the tubular specimens under the test conditions and actual-size piping under actual service conditions, where the ratio of the scoop depth was about 5% in both cases. …

    Transactions of the JSME (in Japanese) 86(883), 19-00362-19-00362, 2020


  • Fundamental Study of Inflation Pressure Resistance in an Angiographical Tube  [in Japanese]

    Kawasaki Tatsuya , Kato Hideyuki , Kasahara Tetsuharu , Taoka Junichi , Umekita Hideo , Masuda Yoshitada

    … We investigated the injection pressure and the expansion rate at the center of the tube during contrast enhancement by setting the power injector to 1200 PSI pressure, with 2.0 ml/s injection speed, 10 ml injection volume, 5.0 s injection time, and 0 s rise time for tubes with different pressure resistance performance (low or high). … Results show that the tube expansion caused retention of the contrast medium inside, which decreases the actual amount of the injected contrast medium. …

    Japanese Journal of Radiological Technology 76(3), 278-284, 2020

    J-STAGE  Ichushi Web 

  • AN EXPERIMENTAL STUDY ON THE INFLUENCE OF INCIDENT CHARACTERISTICS ON SOUND INSULATION BETWEEN ROOMS:Study on the incident sound field in the insulation performance measurement for partition walls Part 2  [in Japanese]

    AIDA Yu , INOUE Naohisa , SAKUMA Tetsuya

    … The aims of this paper are to validate the proposed method in actual rooms under sound insulation measurement and to investigate experimentally the influence of incident sound fields on the sound insulation between dwelling rooms using the proposed method.</p><p> In the experiment, the proposed method was applied to test rooms separated by an RC wall, where the source rooms were arranged to three different planar geometries using removable partitions. … and sound reduction index <i>R</i> …

    Journal of Environmental Engineering (Transactions of AIJ) (764), 893-902, 2019-10


  • Heat Treatments of the Contaminated Soils for Volume Reduction and Mineralogical and Chemical Characteristics of the Products  [in Japanese]

    万福 裕造

    … Due to the accident at TEPCO Fukushima Daiichi Nuclear Power Plant, radioactive substances were spread and extensive contamination mainly in Fukushima Prefecture. … The reduction of the storage amount at temporary storage / intermediate storage facilities etc. … From this background, the mineralogical and chemical characterization of heat-treated soils was examined in detail for assuming the volume reduction of decontaminated soil. …

    農研機構研究報告農業環境変動研究センター = BULLETIN OF THE NARO, AGRO-ENVIRONMENTAL SCIENCES (40), 1-35, 2019-03-31

    IR  DOI 

  • STUDY ON ENERGY ZERO BALANCE BASED LIGHTING SYSTEM IN TOILET:ZET lighting system using the energy harvesting technology implement to actual building  [in Japanese]

    ISHII Hisashi , FUJIYAMA Mamiko , KOBAYASHI Hikaru , ISHIDA Toshikazu

    … In the gents' toilet despite that the consumption amount is larger than power generation amount, if the number of users and the consumption amount satisfy the predetermined conditions, the lighting energy of zero balance can be achieved by the power generation of additional flashing for cleaning. …

    Journal of Environmental Engineering (Transactions of AIJ) (757), 345-355, 2019-03


  • Neural correlates of time distortion in a preaction period

    Iwasaki Miho , Noguchi Yasuki , Kakigi Ryusuke

    … For example, a visual stimulus presented during the preparation of manual movements is perceived longer than actual. … It is generally known that viewing a stimulus induces a reduction in amplitude of occipital 10-Hz wave ("alpha‐blocking"). … Preparing manual movements are also known to reduce alpha power in the motor cortex ("mu‐suppression"). …

    Human Brain Mapping 40(3), 804-817, 2019-02-15


  • Research on ventilation design for express way tunnels to accommodate the emission control standards  [in Japanese]

    SHIMIZU Masayuki , Tetsuo Ito , SHINOBU Kaise

    … As a result the reduction of turbidity has been confirmed by the actual measurement in tunnel. … In our estimation, reduction of turbidity continues until the year 2013 when it becomes stable. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), S05406, 2019



    Matsumoto Takuji , Yamada Yuji

    <p>太陽光発電の導入が加速し,電力系統に与える影響が拡大している昨今,太陽光発電出力や関連する日射量予測のニーズが一層高まってきている.本研究では,日射量観測値を時間帯別・天気別に分けた場合に存在する滑らかな周期性トレンドに着目し,トレンドの推定値と気象庁の発表する天気概況予報を用いた日射量および太陽光発電出力の予測手法を提案する.まず,周期ダミー変数と天気概況実績値を説明変数とする …

    Transactions of the Operations Research Society of Japan 62(0), 1-22, 2019


  • Application to steam turbine 50-inch and 60-inch titanium blades for large capacity plants  [in Japanese]

    YAMASHITA Yutaka , YODA Hideo , KUDO Takeshi , OGATA Koji

    … The lengthening of the last stage blades results in the expectation of a reduction in exhaust loss and leads to the expansion of the single turbine capacity, contributing to the efficiency enhancement of steam turbines and to a reduction in the number of turbine casings that can make turbine buildings compact and construction costs lower. … In this paper, we introduce development contents of new Titanium LSB and its application to a large capacity thermal power plant of over 1000 MW. …

    The Proceedings of the National Symposium on Power and Energy Systems 2019.24(0), D145, 2019


  • Development of borescope inspection apparatus for reliability enhancement of gas turbine hot gas path parts  [in Japanese]

    SATO Yoichi , FUKE Yasutaka

    … A representative measure for maintenance cost reduction of GTCC power plant is extension of periodic inspection interval of gas turbine. … When the extension of periodic inspection interval is applied to actual plant, reliability enhancement of hot gas path parts is required to prevent risk such as unplanned outage. …

    The Proceedings of the National Symposium on Power and Energy Systems 2019.24(0), D221, 2019


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