Search Results 1-20 of 412

  • Atomic-scale topography of rutile TiO2(110) in aqueous solutions: A study involving frequency-modulation atomic force microscopy

    Xue Shengkai , Sasahara Akira , Onishi Hiroshi

    … In a pH-6 solution, ridges parallel to the [001] axis with trenches in between were observed and assigned to the rows of oxygen anions protruding from the surface plane to the solution. … The topography in an acidic solution (pH 3) was similar to that observed in a neutral solution and could be interpreted as protruding oxygen anions covered partially by protons. …

    Journal of Chemical Physics 152(5), 054703, 2020-02-07

    IR 

  • FLEXURAL STRENGTH OF THE STRENGTH-DUCTILITY TYPE SEISMIC RETROFIT TECHNIQUE OF RC COLUMNS USING PC BAR PRESTRESSING AND STEEL PLATES  [in Japanese]

    NAKADA Kozo , YAMAKAWA Tetsuo , JAVADI Pasha , NOORI Mohammad Zahid , KANEDA Kazuo

    … In the proposed method, the strain distribution of the THW column section is divided into three fields, such as field A, B, and C, based on the location of the neutral axis changes according to the axial force levels. … Assuming the location of the neutral axis depth, a generalized equation is obtained based on the equivalent rectangular stress block parameters for concrete in compression that is adopted by the American Concrete Institution (ACI). …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (767), 97-104, 2020-01

    J-STAGE  AIJ 

  • Achieving Grain Refinement of Upsized Al–3Mg–0.2Sc (mass%) Round Rods Using Multi-Pass High-Pressure Sliding (MP-HPS)

    Tang Yongpeng , Takizawa Yoichi , Yumoto Manabu , Otagiri Yoshiharu , Horita Zenji

    … To achieve a homogeneous microstructure throughout the cross-section, the rod sample was rotated with 60° around the longitudinal axis (MP-HPS-R) for three times. …

    MATERIALS TRANSACTIONS, 2020

    J-STAGE 

  • Relationships between toe grip strength and ankle angle during gait  [in Japanese]

    Soma Masayuki , Murata Shin , Kai Yoshihiro , Nakae Hideyuki , Satou Yousuke

    <p>[目的]本研究では,歩行時の足角が足趾把持力発揮に関係しているかを明らかにするために,足趾把持力と快適および最速歩行下の足角との関係について検討した。[対象・方法]健常成人女性27名を対象とした。測定項目は,足外転位,足中間位,足内転位の足部角度3条件で測定した足趾把持力と最速歩行および快適歩行下の足角とした。足部角度3条件で測定した足趾把持力と快適歩行および最速歩行下の足角との …

    Japanese Journal of Health Promotion and Physical Therapy 10(1), 41-44, 2020

    J-STAGE 

  • Which Factors Affect Postoperative Cervical Kyphosis after Laminoplasty for Cervical Spondylotic Myelopathy?  [in Japanese]

    Kawasaki Sachiko , Shigematsu Hideki , Tanaka Masato , Suga Yuma , Yamamoto Yusuke , Tanaka Yasuhito

    <p><b>はじめに:</b>頚椎症性脊髄症に対する椎弓形成術後の後弯進行に関与する術前危険因子を明らかにした.</p><p><b>対象と方法:</b>術後2年間追跡できた57例を中間位ΔC2-7 Cobb角≧5°と<5°の2群間比較し,後弯進行の危険因子の感度・特異度を算出した.</p><p&g …

    Journal of Spine Research 11(5), 858-865, 2020

    J-STAGE 

  • DESIGN METHOD FOR POST-TENSIONED TIMBER SHEAR WALL (PART 1): TRIANGULAR EMBEDMENT STIFFNESS AND BEHAVIOR IN ELASTIC RANGE  [in Japanese]

    NAGASHIMA Taisuke , TACHIBANA Kazuki , YANO Masataka , OHASHI Yoshimitsu

    Neutral axis position moves by variation of lateral load and deformation in this type of connection. … To know appropriate moment capacity needs exact neutral position. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) 85(770), 539-549, 2020

    J-STAGE 

  • Achieving grain refinement of upsized Al–3Mg–0.2Sc (mass%) round rods using multi-pass high-pressure sliding (MP-HPS)  [in Japanese]

    Tang Yongpeng , Takizawa Yoichi , Yumoto Manabu , Otagiri Yoshiharu , Horita Zenji

    … To achieve a homogeneous microstructure throughout the cross-section, the rod sample was rotated with 60° around the longitudinal axis (MP-HPS-R) for three times. …

    Journal of Japan Institute of Light Metals 70(2), 63-65, 2020

    J-STAGE 

  • QUANTIFICATION OF COLLAPSE PREVENTION PERFORMANCE OF CONCRETE BEAMS BASED ON LONGITUDINAL REBAR BUCKLING:-Proposal of collapse prevention performance index for ductile concrete buildings-  [in Japanese]

    YOON Rokhyun , SANADA Yasushi , AKAHORI Takumi , PRADHAN Sujan , KAWAMURA Eriko

    … Simplification for application to practical design</font></p><p>Since the neutral axis on cross-sections of general RC beams is likely to be close to rebar under compression, the strain of the beam longitudinal rebars described in Chapter 3 was assumed to be zero under the maximum compression. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (763), 1259-1269, 2019-09

    J-STAGE  AIJ 

  • ROTATIONAL STIFFNESS OF STEEL CONNECTIONS FOR TIMBER LATTICE SHELL IN NEGATIVE OUT-OF-PLANE AND IN-PLANE DIRECTIONS  [in Japanese]

    NAKAJIMA Shun , YAMAZAKI Yoshihiro , SAKATA Hiroyasu , TAKEUCHI Toru , HARADA Hiroaki , HAYASHI Kenichi

    … Next, approximating the process of neutral axis iteration, simplified formulas are demonstrated. … Also, assuming the neutral axis at the center of the connections, further simplified equations for stiffness and strength are proposed. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (760), 831-841, 2019-06

    J-STAGE  AIJ 

  • Influence of total knee arthroplasty on hip rotational range of motion

    Kataoka Tatsunori , Oshima Yasushi , Iizawa Norishige , Majima Tokifumi , Takai Shinro

    … Variations in tibial axis alignment compared to femoral axis alignment by bone resections were also examined as changes in the joint lines of the distal femur and the proximal tibia using plain radiography and computed tomography.</p><p><b>Results:</b> …

    Journal of Nippon Medical School, 2019

    J-STAGE 

  • Crystal Structure of Dinaphtho[2,1,1′,2′]furan Picrate

    HONDA Risa , TANAKA Atsuhiko , HIRABAYASHI Kazunori , AKIYAMA Kazuhiko , SHIMIZU Toshio , SUGIURA Ken-ichi

    … The bond distances and angles of the component molecules are within the range of those reported for structurally similar neutral compounds and picric acid. … These characteristics taken together with the feature that the infrared spectra of the complex can be superimposed with those of its component molecules, it is concluded that this complex is in the neutral ground state. …

    X-ray Structure Analysis Online 35(0), 69-71, 2019

    J-STAGE 

  • Index for Wood Bending Shapes  [in Japanese]

    Ishihara Chika , Imanishi Hiroshi , Mitsui Katsuya

    <p>家具部材の曲げ木製造において,近年増加している不良現象への対策が課題となるいま,樹種の選定基準になる物性や,曲げ木可能な材厚(<i>s</i>)と曲げ半径(<i>r</i>)の相関のような形状基準が求められている。本研究では蒸煮直後の木材を押し型曲げ試験に供して,樹種別の材特性と曲げたわみ量の関係を検討した。押し型曲げ試験で引張側側 …

    Mokuzai Gakkaishi 65(4), 235-242, 2019

    J-STAGE 

  • Studies of Plasma Confinement and Stability in a Gas Dynamic Trap: Results of 2016 - 2018

    BAGRYANSKY Peter A. , MURAKHTIN Sergey V. , PINZHENIN Egor I. , PRIKHODKO Vadim V. , SAVKIN Valery Ya. , SHALASHOV Alexander G , SKOVORODIN Dmitry I. , SOLDATKINA Elena I. , SOLOMAKHIN Alexander L. , YAKOVLEV Dmitry V. , GOSPODCHIKOV Egor D. , IVANOV Alexander A. , LIZUNOV Andrey A. , KOLESNIKOV Evgeny Yu. , KONSHIN Zahar E. , KOROBEYNIKOVA Olga A. , KOVALENKO Yury V. , MAXIMOV Vladimir V.

    … We showed that a value of on-axis electron temperature up to 450 eV at plasma density 1.2 × 10<sup>19 </sup>m<sup>−3 </sup>can be supported steadily. … It was shown that the density of neutral gas in the expander in the range up to 10<sup>20 </sup>m<sup>−3 </sup>does not have a significant effect on energy confinement in the trap, despite an estimate of the critical density of 10<sup>18 </sup>m<sup>−3</sup>.</p> …

    Plasma and Fusion Research 14(0), 2402030-2402030, 2019

    J-STAGE 

  • Changeability of the Rotatory Direction in the Stepping Test Caused by the Anteverted or Retroverted Posture  [in Japanese]

    Yasuda Tomohisa , Souma Keiko , Kunihiro Takanobu , Yasuda Kouichi

    … To ascertain the reason for this directional switch, volunteers carried a 10-kg weight on their front or back while keeping their axis vertical. … The neutral pose, with the arms hanging down along the side of the body and stepping low, was scarcely associated with any turning.</p> …

    Equilibrium Research 78(1), 39-42, 2019

    J-STAGE  Ichushi Web 

  • Axial Plasma Confinement in Gas Dynamic Trap

    SOLDATKINA Elena I. , PINZHENIN Egor I. , PRIKHODKO Vadim V. , SAVKIN Valery Ya. , SOLOMAKHIN Alexander L. , YAKOVLEV Dmitry V. , BAGRYANSKY Peter A. , BEKLEMISHEV Alexey D. , FEDORENKOV Eduard A. , KONSHIN Zakhar E. , KOROBEYNIKOVA Olga A. , LIZUNOV Andrey A. , MAKSIMOV Vladimir V. , MURAKHTIN Sergey V.

    … Experiments dedicated to the neutral gas role in the expander of mirror device were carried out. … Ion current density distribution measured at the end plate does not depend on neutral gas density in the expander. … Experimental indications of neutral gas extrusion from the axis of the expander to its periphery were observed. …

    Plasma and Fusion Research 14(0), 2402006-2402006, 2019

    J-STAGE 

  • STRENGTH EVALUATION OF H-BEAM-TO-RHS COLUMN CONNECTION SUBJECTED TO BENDING AND AXIAL FORCE  [in Japanese]

    ASADA Hayato , TANAKA Tsuyoshi , YOSHIMI Nobuyuki

    … beam-to-column connection is defined by whichever is smaller of the upper bound solution aforementioned and plastic strength of beam.<br> The axial force-moment interaction curves (N-M interaction curves) obtained by derived equations shown in Fig. 7, clearly indicated that when strength of beam-to-column connection were governed by collapse load of column flange, the strength of beam-to-column connection was significantly decreased with increase in axial force even if the plastic neutral axis exists within the beam …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (753), 1701-1711, 2018-11

    J-STAGE  AIJ 

  • Electrostatic-magnetic-hybrid thrust generation in central–cathode electrostatic thruster (CC–EST)

    Sasoh Akihiro , Kasuga Hayato , Nakagawa Yoshiya , Matsuba Toshihiro , Ichihara Daisuke , Iwakawa Akira

    … The electrostatic and electromagnetic contributions are evaluated by fitting experimentally measured thrust characteristics to formulae derived for steady-state, quasi-neutral plasma flows. … The thrust performances of three thrusters having an axisymmetric shape with a hollow cathode on the centre axis and a diverging, applied magnetic field are examined. …

    Acta Astronautica (152), 137-145, 2018-11

    IR 

  • STUDY ON IMPROVEMENT OF SOURCE INTENSITY ESTIMATION METHOD FOR AIR POLLUTANT  [in Japanese]

    OURA Masamichi , KIM Minsik , OHBA Ryohji , KATO Shinsuke

    … n.<br> 2) Uncertainty of emission height was decreased by removing observation data measured near from source point.<br> 3) Terrain influence was reproduced in Gaussian plume model by modifying plume widths, effective source height and displacement of plume axis, based on wind tunnel experiment.<br> 4) Meandering effect of Atmospheric stability on lateral plume width was reproduced in Gaussian plume model by using the observed data on fluctuation of wind direction in the field under a stable atmospheric stability.<br>&l …

    Journal of Environmental Engineering (Transactions of AIJ) (744), 171-181, 2018-02

    J-STAGE  AIJ 

  • Posture estimation method for digital human modeling with considering the effect of working position and exerted hand force  [in Japanese]

    CHIHARA Takanori , MURAI Keita , SEO Akihiko , SAKAMOTO Jiro

    … First, the weighted sum of the joint moments and joint angles from the neutral posture (the two-indicator model) was applied as the PEF; … The difference between the force direction and the long axis of manipulability ellipsoid was added to the two indicators, and the PEF was revised (the three-indicator model) so as to consider the effect of force direction on the working posture. …

    The Proceedings of Design & Systems Conference 2018.28(0), 1205, 2018

    J-STAGE 

  • Influence of Lower Limb Alignment Change After Total Knee Arthroplasty on Whole Leg Length  [in Japanese]

    FUJIMAKI Hiroshi , 齋藤 知行 , 中澤 明尋 , 竹内 剛 , 沼崎 伸 , 高川 修 , 鹿野島 祐子 , 渡辺 大樹 , 廣冨 邦仁 , 金 由梨

    … We measured the mechanical axis (MA) length, mechanical axis deviation (MAD) at the knee joint, hip-knee-ankle (HKA) angle, and knee flexion (KF) angle.</p><p>A paired <i>t</i>-test was used to evaluate changes of each parameter after TKA. … Therefore, we may consider the leg length change when performing TKA and bring the lower limb into neutral alignment in patients with severe varus or valgus deformity.</p> …

    Japanese Journal of Joint Diseases 37(1), 1-5, 2018

    J-STAGE  Ichushi Web 

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