Search Results 1-20 of 4721

  • Feasibility Investigation for Online Elemental Monitoring of Iron and Steel Manufacturing Processes using Laser-Induced Breakdown Spectroscopy

    Wang Zhenzhen , Deguchi Yoshihiro , Shiou Fangjung , Tanaka Seiya , Cui Minchao , Rong Kai , Yan Junjie

    … In this paper, the remote open-path LIBS measurement was studied under different sample temperature, lens to target distance (LTD), sample angle conditions to clarify its online measurement features. … The 3D profile measurement system of parallel laser beam fringes projection was also developed to measure the sample profile at different sample temperature. …

    ISIJ International 60(5), 971-978, 2020-05-15

    IR 

  • Expression Profiles of dmrt1 in Schizothorax kozlovi, and Their Relation to CpG Methylation of Its Promoter and Temperature

    He Yongfeng , Wu Xingbing , Zhu Yongjiu , Yang Deguo

    Zoological science 37(2), 140-147, 2020-04

  • Temporal variation of air temperature, snow depth, and soil temperature at different slopes of Ashoro Research Forest, Kyushu University  [in Japanese]

    智和 正明 , 中村 琢磨

    九州大学北海道演習林の北向斜面と南向斜面において気温,積雪深,地温の連続測定を4冬季(2014 年- 2018 年)にわたって行った。地温は深さ0 ~ 45cm において8深度で計測し,土壌凍結深度を地温の鉛直プロファイルから判断した。日平均気温は南向斜面よりも北向斜面で平均0.4°C 程度低かった。積雪は両斜面とも日平均気温が氷点下に転じた日以降に始まり,積雪直後は両斜面で積雪深に違いはなかった …

    九州大学農学部演習林報告 (101), 7-11, 2020-03

    IR 

  • Andritz Yankee Dryer Inspection  [in Japanese]

    Okunishi Toshio

    <p>「ヤンキードライヤーはティシュマシンの心臓である」と言われる。ヤンキーはティシュ製造の生産能力を決定し,その操業により水分プロファイルやクレープの良否を決定する。また,ティシュ製造は機械の保全によりその生産効率の高低が決定される。さらにヤンキードライヤーは第二種圧力容器であり,計画的な保全によって圧力容器に関わる安全を保証しなければならない。従ってヤンキードライヤーの保全はティシ …

    JAPAN TAPPI JOURNAL 74(5), 437-440, 2020

    J-STAGE 

  • Experimental Tribometric Characteristics Analysis of a Ferrofluid Based Journal Bearing System

    Patel Nimeshchandra S. , Deheri G. M. , Patel H. C. , Shah K. R. , Shukla Atindra

    … Thus, magnetic shaft made from EN-19 was used in a brass bearing to evaluate various tribometric characteristics namely, fluid film pressure, fluid temperature rise, bearing vibrations, friction torque and wear at various conditions. … It was found that almost no change in the pressure profile was observed. … Further, the temperature rise was found to be less in FF based system while marginal difference in damping characteristic was observed. …

    Tribology Online 15(4), 209-221, 2020

    J-STAGE 

  • Divertor Detachment with Multi-Species Impurity Seeding in LHD

    MUKAI Kiyofumi , MASUZAKI Suguru , HAYASHI Yuki , OISHI Tetsutaro , SUZUKI Chihiro , KOBAYASHI Masahiro , TANAKA Hirohiko , PETERSON Byron J. , the LHD Experiment Group

    … Reduction of edge electron temperature due to Ne seeding can promote the Kr emission at the upstream region. …

    Plasma and Fusion Research 15(0), 1402051-1402051, 2020

    J-STAGE 

  • Development of High-Accuracy End-Gas Autoignition Prediction Model (Fourth Report):- Reverse Livengood-Wu Integral Using Ignition Delay Time and Error Correction Equations -  [in Japanese]

    Kuwahara Kazunari

    第2報ではプレミアムガソリンサロゲート燃料の着火遅れ時間総括式を構築した.第3報ではLivengood-Wu積分による着火予測の誤差要因を検討した.本報では,第3報で得られた知見にもとづき誤差補正式を構築し,総括式と誤差補正式を用いた遡り型Livengood-Wu積分による予測精度向上を実現する.

    Transactions of Society of Automotive Engineers of Japan 51(4), 655-662, 2020

    J-STAGE 

  • Measurement of Electron Temperature Profile and Fluctuation with ECE Radiometer System in Heliotron J

    LUO Maoyuan , MIZUUCHI Tohru , KONOSHIMA Shigeru , NAKAMURA Yuji , ISHIZAWA Akihiro , NAGASAKI Kazunobu , WEIR Gavin , OKADA Hiroyuki , MINAMI Takashi , KADO Shinichiro , KOBAYASHI Shinji , YAMAMOTO Satoshi , OHSHIMA Shinsuke

    … <p>A multi-channel electron cyclotron emission (ECE) radiometer system is being developed in Heliotron J to measure electron temperature (Te) profile and evaluate Te fluctuation. … The conventional ECE part of this system includes 16 channels and can measure electron temperature profile from 58 GHz to 74 GHz which covers from the core to the edge region, and the correlation ECE part is composed of CECE-RF and CECE-IF sides. …

    Plasma and Fusion Research 15(0), 2402038-2402038, 2020

    J-STAGE 

  • Volume Profile of Protein Determined by Pressure Effects  [in Japanese]

    ISHIMORI Koichiro

    … <p>Pressure is one of the fundamental parameters in thermodynamics, which can perturb physical properties of proteins as well as temperature. …

    The Review of High Pressure Science and Technology 30(1), 4-11, 2020

    J-STAGE 

  • The effect of different alkaline catalysts on the formation of silica aerogels prepared by the sol–gel approach

    WANG Yujing , HAN Junnan , ZHAI Jiexiu , YANG Daling

    … nanoparticles and high surface aera, silica aerogel is a high-profile material in many fields. … Compared with the silica aerogels prepared without any catalyst, accordingly, the thermal stability was significantly improved, and the decomposition temperature increased from 375 to above 410 °C. …

    Journal of the Ceramic Society of Japan 128(7), 395-403, 2020

    J-STAGE 

  • SIMPLE ESTIMATION METHOD OF TEMPERATURE LAYER INTERFACE HEIGHT BY POLYNOMIAL APPROXIMATION OF TEMPERATURE PROFILE  [in Japanese]

    DEGUCHI Yoshikazu , KISHIUE Masashi , YAMAZAKI Kei , OHMIYA Yoshifumi

    … On the other hand, temperature profiles measured in actual fires became ambiguous without forming a clear boundary. …

    Journal of Environmental Engineering (Transactions of AIJ) 85(772), 413-423, 2020

    J-STAGE 

  • Effect of Cooling Intensity on Impact Toughness and Corrosion Resistance of Duplex Stainless Steel  [in Japanese]

    WANG Rongguang , HONDA Masaharu , MIYAUCHI Kouji , MORI Takayuki , FUKUHARA Hideki

    … was used to produce the practical heat treatment specimens through adjusting the heat transfer coefficient at interface between steel and nitrogen gas,which was controlled with fan rotating speed.The time constant (τ) derived from the measured temperature profile well corresponded to the calculated one by using the heat transfer coefficient and the physical properties of specimens as well as their characteristic length.The absorbed energy can be sorted according to time constant,i.e., the same as water …

    Journal of the Society of Materials Science, Japan 69(6), 471-478, 2020

    J-STAGE 

  • Data Assimilation in the Welding Process for Analysis of Weld Toe Geometry and Heat Source Model

    Shiraiwa Takayuki , Enoki Manabu , Goto Sota , Hiraide Takashi

    … In this study, two methods were proposed to obtain these input parameters more efficiently: a method of automatically identifying toe radius and reinforcement angle from height profile, and a method of estimating a heat source model in welding simulation. … In the first method, the toe radius and reinforcement angle were extracted from the height profile by Akaike's information criterion. …

    ISIJ International 60(6), 1301-1311, 2020

    J-STAGE 

  • Evaluation of Boron Solubility in Iron Solid Solution by Radio-frequency Glow-discharge Optical Emission Spectroscopy  [in Japanese]

    Sekido Nobuaki , Kimura Yuta , Osanai Takumi , Miyagi Toshimi , Numakura Hiroshi , Yoshimi Kyosuke

    … Diffusion couples composed of iron foils and Fe<sub>2</sub>B bulk specimens were annealed at various temperature between 750ºC and 1100ºC, and the concentration profile of boron from the end-surface of the iron part were measured by the radio-frequency glow-discharge optical emission spectroscopy (rf-GD-OES). …

    Tetsu-to-Hagane 106(6), 292-301, 2020

    J-STAGE 

  • Resistance to Temper Softening of Low Carbon Martensitic Steels by Microalloying of V, Nb and Ti  [in Japanese]

    Zhang Yongjie , Zhao Chao , Sato Mitsutaka , Miyamoto Goro , Furuhara Tadashi

    … With similar hardness in as-quenched condition in all the alloys used, the hardness of tempered martensite is increased by V, Nb and Ti additions, particularly after treatment at higher temperature with longer time. … The X-ray line profile analysis of the tempered alloys implies that the reduction in dislocation density during tempering is strongly retarded by V, Nb and Ti additions. …

    Tetsu-to-Hagane 106(6), 362-371, 2020

    J-STAGE 

  • Reducing Cracking in Solder Joint Interfacial Cu<sub>6</sub>Sn<sub>5</sub> with Modified Reflow Profile

    Somidin Flora , McDonald Stuart David , Ye Xiaozhou , Qu Dongdong , Sweatman Keith , Akaiwa Tetsuya , Nishimura Tetsuro , Nogita Kazuhiro

    … In this paper the authors report on the effect of variations in the cooling stage of a reflow soldering thermal profile on the incidence and extent of cracking in the Cu<sub>6</sub>Sn<sub>5</sub> … The cooling conditions were (i) the direct-cooling of a conventional reflow profile, and (ii) an alternative reflow profile with one of three extended isothermal holding periods of 30, 60, and 180 seconds at 140°C during the cooling stage. …

    Transactions of The Japan Institute of Electronics Packaging 13(0), E19-004-1-E19-004-11, 2020

    J-STAGE 

  • Application of chemometrics to electroanalytical chemistry  [in Japanese]

    Ozeki Toru

    … But, a quantity we measure is temperature change of the electrode, which is delayed from real heat evolution due to heat capacity and so on. … So the measured temperature change has to be deconvoluted to the true heat evolution by a mathematical method using the delay function. …

    Review of Polarography 66(1), 31-40, 2020

    J-STAGE 

  • Development of High-Accuracy End-Gas Autoignition Prediction Model (Third Report):– Error Factors in Autoignition Prediction Using Livengood-Wu Integral –  [in Japanese]

    Kuwahara Kazunari , Minamide Takuhiro

    Livengood-Wu積分による着火予測の精度向上のため、前報で詳細反応機構が記述する着火遅れ時間を高精度に再現可能な総括式を構築したが、この式を用いてもあらゆる条件で高精度予測が可能になるわけではなかった。本報ではこの積分による着火予測の誤差要因を解明し、誤差を解消する方法を模索する。

    Transactions of Society of Automotive Engineers of Japan 51(3), 509-516, 2020

    J-STAGE 

  • Feasibility Investigation for Online Elemental Monitoring of Iron and Steel Manufacturing Processes using Laser-Induced Breakdown Spectroscopy

    Wang Zhenzhen , Deguchi Yoshihiro , Shiou Fangjung , Tanaka Seiya , Cui Minchao , Rong Kai , Yan Junjie

    … In this paper, the remote open-path LIBS measurement was studied under different sample temperature, lens to target distance (LTD), sample angle conditions to clarify its online measurement features. … The 3D profile measurement system of parallel laser beam fringes projection was also developed to measure the sample profile at different sample temperature. …

    ISIJ International 60(5), 971-978, 2020

    J-STAGE 

  • Langmuir Probe Measurements of Scrape-Off Layer Conditions in RF-Driven Plasmas in TST-2

    RICE James H.P. , KO Yongtae , MATSUZAKI Kyohei , OSAWA Yuki , TSUJII Naoto , TAKASE Yuichi , EJIRI Akira , WATANABE Osamu , YAMAZAKI Hibiki , PENG Yi , IWASAKI Kotaro , AOI Yuki

    … A full density profile of SOL conditions is necessary to accurately simulate the propagation of LHW in TST-2. … Temperature measurements show <i>T</i><sub>e </sub>= 30 - 50 eV during RF injection and <10 eV otherwise. …

    Plasma and Fusion Research 15(0), 2402009-2402009, 2020

    J-STAGE 

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