Search Results 1-20 of 525

  • Predictive value of some pro-oxidants in type 2 diabetes mellitus with vascular complications

    Goycheva Petia , Nikolova Galina , Ivanova Mariana , Kundurdzhiev Todor , Gadjeva Veselina

    … <p>The study aims to analyze oxidative stress levels in circulation of some reactive molecules and products of biomolecular modification in type 2 diabetes mellitus (T2DM) with diabetes-specific vascular complications in order to determine their predictive value. … Also, the alterations of their serum concentration with reference to disease characteristics were assessed. …

    BioScience Trends 13(2), 168-175, 2019

    J-STAGE 

  • The Examples of the Multi Material Bonding Technologies based on Interfacial Reactions: The Researches and the Future Subjects  [in Japanese]

    MUTSUDA Mitsuteru

    … It is shown that a soft layer between a metal part and a plastic part can reduce a stress concentration and it influences on the bonding area dependence of a bonding strength. …

    NIPPON GOMU KYOKAISHI 92(1), 23-29, 2019

    J-STAGE 

  • Slow Strain Rate Tensile Test Properties of Iron-Based Superalloy SUH660 in Hydrogen Gas

    Fukunaga Akihiko

    … Nominal stress-nominal strain curve of each strain rate in 70 MPa hydrogen gas showed same behavior to maximum load via yield point in comparison with that in air, however, each elongation at breaking point in 70 MPa hydrogen was a little shorter than that in air. … However, it's proved that relative reduction of area in 70 MPa hydrogen to that in air was significantly affected by strain rate of tensile test. …

    ISIJ International 59(2), 359-366, 2019

    J-STAGE 

  • Contact Angle Measurement of Arc Welding Spatter after Coating with Spatter Adhesion Preventive Agent

    Takahashi Akihiro , Yamamoto Naoyuki , Toyohiro Toshinobu

    … In addition, contact area on spatter particle with the preventive agent was narrow, therefore a stress concentration phenomenon is considered to occur at the area. …

    International Conference on Science, Technology & Education (ICSTE 2018), 99-102, 2018-09

    IR 

  • Stress corrosion cracking susceptibility of 310S stainless steel in hydrogenated hot water

    Huang Yen-Jui , Kawakita Kousuke , Kimura Akihiko

    … The stress corrosion cracking (SCC) susceptibility of solution-annealed 310S stainless steel (SS) was examined by means of slow-strain rate test (SSRT) method in hot water (288 °C) with dissolved-hydrogen (DH), and the results were compared with those of 316L SS. …

    Nuclear Materials and Energy (15), 103-109, 2018-05

    IR 

  • STUDY ON CHANGES OF THE PREFRONTAL CEREBRAL BLOOD FLOW FOR THE ILLUMINANCE ATTENUATION OF THE LIGHTING  [in Japanese]

    SANO Naoko , AKITA Takeshi , MUNAKATA Jun

    … However, the physiological effects resulting from fluctuation lighting to the area workers are highly uncertain. … Thus, it was found that the change of the cerebral blood flow in the prefrontal area and the amount of the stress caused by illuminance change did not correlate with each other. …

    Journal of Environmental Engineering (Transactions of AIJ) (745), 247-256, 2018-03

    J-STAGE  AIJ 

  • Study on fatigue crack initiation of Zr-based bulk metallic glass with corrosion pits  [in Japanese]

    KUWAHARA Hirotaka , Ueno Akira , GUENNEC Benjamin , YOKOYAMA Yoshihiko , SAKAIDA Akiyoshi , KIKUCHI Shoichi , SAKAI Tatsuo

    … It is considered that fatigue cracks initiated earlier than in air due to stress concentration at corrosion pits. … In addition, the stress intensity factor range at the crack initiation Δ<i>K</i><sub>ci</sub> … was calculated from the fractured surface observation using <i>√area</i> … fell within the range of 2.3 ~ 3.6 MPa√m for low stress level range tests. …

    The Proceedings of the Materials and Mechanics Conference 2018(0), OS0808, 2018

    J-STAGE 

  • Graphene Ribbon-Base Highly Sensitive Pressure Sensor Using Area-Arrayed Pillar Structure  [in Japanese]

    WANG Zhi , SUZUKI Ken , MIURA Hideo

    … The pressure sensor proposed in this paper consists of two sections: stress concentration section and stress detecting section. … The stress concentration section was fabricated by hard PDMS film with periodically-aligned array contact structure on the surface, in order to concentrate and transfer the applied load to the detecting part. …

    The Proceedings of Mechanical Engineering Congress, Japan 2018(0), J2220302, 2018

    J-STAGE 

  • Creep Fatigue Life Evaluation Method of Circular Notch Specimens on a CrMoV Forging Steel  [in Japanese]

    KOMATSUZAKI Satoru , OGATA Takashi

    … <p>Creep-fatigue damage progresses at the stress concentration portion in the turbine rotor. … In order to develop a creep-fatigue life evaluation method under multiaxial stress condition with stress gradient, it is necessary to conduct a creep-fatigue tests using a round notch bar specimens. …

    The Proceedings of Mechanical Engineering Congress, Japan 2018(0), J0320102, 2018

    J-STAGE 

  • Mast cell-mediated oxygen-induced retinopathy  [in Japanese]

    Matsuda Kenshiro , Tanaka Akane , Matsuda Hiroshi

     近年,新生児・周産期医療の発展や妊婦の骨格構造の変化,多胎率,高齢出生の増加などによって在胎週数が短く出生体重1,000 g未満で産まれる超低出生体重児が増加している.超低出生体重児は組織未成熟による機能不全のため,肺異形成症候群や動脈管開存症,貧血など種々の合併症を引き起こすリスクがある.そのため出生後直ちに高酸素環境での保育が必要で,分娩時からの集中治療において大きな酸素濃度の変 …

    Functional Food Research 14(0), 4-9, 2018

    J-STAGE  Ichushi Web 

  • Study on the influence of addition of anionic surfactants on adhesion of ice:(Investigation of influence of applied voltage)  [in Japanese]

    EHARA Kohei , MAEZZAWA Kazuomi , SAKAMOTO Junki , MATSUMOTO Koji

    … In this paper, a mixture of pure water- anionic surfactant with a critical micelle concentration was frozen on the surface of the copper at -3℃ which consists of the DC condenser, after which the ice adhesion forces were measured, varying plus applied voltages. … The measured ice adhesion force was estimated as “shearing stress” …

    The Proceedings of the Symposium on Environmental Engineering 2018.28(0), 414, 2018

    J-STAGE 

  • Effect of P Contents and Tube-shape on Stress Corrosion Cracks in Hair-pin Bending Copper Tube  [in Japanese]

    Tamagawa Hirokazu , Kanamori Koji , Kawano Kozo , Kyo Yoshihiko , Oya Yoshiyuki

    <p>銅の応力腐食割れに対する感受性は,Zn,P,As,Sb,Siなどの添加によって増大する.その中でもP,As,Sbは,極めて微量の添加量でも感受性を高める.Pは,銅管における重要な添加元素であり,最近になって,りん脱酸銅の約10倍のPを添加した合金(Cu-0.2~0.4%P合金)において,蟻の巣状腐食への耐性を示すことが分かっている.エアコンの熱交換器用伝熱管として使用される銅管で …

    Zairyo-to-Kankyo 67(6), 251-255, 2018

    J-STAGE 

  • Creep-fatigue life evaluation of circular notch specimen on a CrMoV forging steel under multiaxial stress gradient condition  [in Japanese]

    OGATA Takashi , IKEDA Saki , KOMATSUZAKI Satoru

    … <p>Creep-fatigue damage preferentially exceeds at stress concentration portions in high temperature components such as steam turbine rotors during cyclic start up- shut down operation. … Therefore development of an accurate crack initiation life assessment method under creep-fatigue conditions at the stress concentration portions under multiaxial stress states is necessary to maintain reliable operation. …

    Transactions of the JSME (in Japanese) 84(867), 18-00236-18-00236, 2018

    J-STAGE 

  • Creep-fatigue life evaluation of circular notch specimen on a CrMoV forging steel under multiaxial stress gradient condition  [in Japanese]

    OGATA Takashi , IKEDA Saki , KOMATSUZAKI Satoru

    … <p>Creep-fatigue damage preferentially exceeds at stress concentration portions in high temperature components such as steam turbine rotors during cyclic start up- shut down operation. … Therefore development of an accurate crack initiation life assessment method under creep-fatigue conditions at the stress concentration portions under multiaxial stress states is necessary to maintain reliable operation. …

    Transactions of the JSME (in Japanese), 2018

    J-STAGE 

  • Localized Corrosion in Crevice of SUS316 Stainless Steel in Oxygenated High Temperature and High Purity Water  [in Japanese]

    Soma Yasutaka , Ueno Fumiyoshi

    <p>溶存酸素濃度約32 ppm,温度288℃の高純度水中に100 h浸漬したSUS316Lステンレス鋼のすき間内における局部腐食現象を詳細に分析した.テーパーのついたすき間内において,すき間先端部側(すき間幅十数μm以下)の領域において,粒界,および介在物を起点とした局部腐食が発生した.前者は,粒界に沿って発生し,粒内にも腐食が進行した.粒内では腐食がまだら状に進行し,腐食生成物であ …

    Zairyo-to-Kankyo 67(5), 222-228, 2018

    J-STAGE 

  • Long-term discordant fluctuation of chronic stress and immune biomarkers in children and adolescents affected by the Great East Japan earthquake

    Sakamoto Yuzuru , Okazaki Kanzo , Sasaki Keiji , Ueki Shouzoh , Suzuki Koya

    … <p>Although reconstruction from the 2011 Great East Japan earthquake and tsunami is proceeding, the environment of children living in the disaster area has not yet recovered. … The purpose of this study was to examine fluctuations in chronic stress and immune conditions in children and adolescents living in the disaster area. … The participants were elementary and junior high school students living in the Pacific coastal area of northern Japan. …

    The Journal of Physical Fitness and Sports Medicine 7(5), 279-287, 2018

    J-STAGE  Ichushi Web 

  • Measurement of the magnetic flux density at stress concentration area of medium carbon steels using a Scanning Hall Probe Microscope (SHPM).  [in Japanese]

    NAKASHIMA Tatsuro , KIDA Katsuyuki

    The Proceedings of Conference of Hokuriku-Shinetsu Branch 2018.55(0), C034, 2018

    J-STAGE 

  • Simulation and local lattice instability analysis on cleavage cracking from stress concentration area  [in Japanese]

    YASHIRO Kisaragi , NISHIKAWA Ryoichiro , NAITO Keishi

    The Proceedings of Conference of Tokai Branch 2018.67(0), 506, 2018

    J-STAGE 

  • Slow Strain Rate Tensile Test Properties of Iron-Based Superalloy SUH660 in Hydrogen Gas  [in Japanese]

    Fukunaga Akihiko

    … Nominal stress-nominal strain curve of each strain rate in 70 MPa hydrogen gas showed same behavior to maximum load via yield point in comparison with that in air, however, each elongation at breaking point in 70 MPa hydrogen was a little shorter than that in air. … However, it's proved that relative reduction of area in 70 MPa hydrogen to that in air was significantly affected by strain rate of tensile test. …

    Tetsu-to-Hagane 104(6), 338-345, 2018

    J-STAGE 

  • Zirconia Peri-Implant Bone Tissue Response to Occlusal Load  [in Japanese]

    YOSHINAGA Osamu , KAKURA Kae , ISHIHARA Kimie , YANAGI Tsukasa , TANIGUCHI Yusuke , KIDO Hirofumi

    <p>本研究の目的は,荷重下のジルコニアインプラント周囲骨組織の反応を動物モデルで評価することである.</p><p>φ3.0×15.5mmの1ピースタイプのスレッドタイプジルコニア製実験用インプラントを製作した.表面性状は機械加工タイプとレーザー加工タイプの2種類とした.2頭のビーグル犬の下顎両側臼歯を抜歯し,6カ月後に右側に機械加工タイプ3本,左側にレーザー加 …

    Journal of Japanese Society of Oral Implantology 31(1), 40-48, 2018

    J-STAGE  Ichushi Web 

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