Search Results 1-20 of 4267

  • Effects of O₂, CO₂ and H₂O on the Adsorption of NO on Cerium Oxide

    吉川 晃平 , 青柳 拓也 , 小野寺 大剛 , 高橋 恵理 , 内藤 孝 , 三宅 竜也 , 野村 淳子

    Journal of the Japan Petroleum Institute 63(3), 158-162, 2020-05

  • Graphite/Graphene Growth Using Amorphous Carbon Thin Film as a Solid Source on Typical Metal Substrates

    Supissara RUANGWIT , Fumihiko MAEDA , ランウィット スピサラ , マエダ フミヒコ , ランウィット スピサラ , 前田 文彦

    … We studied graphene growth using an amorphous carbon thin film as a solid source instead of flowing raw material gas using amethod derived from chemical vapor deposition. … Theseresults suggest that the thickness of the oxide layer is an essential consideration for the growth graphene on metals. …

    福岡工業大学総合研究機構研究所所報 (2), 1-6, 2020-04-24

    IR 

  • A randomized trial of magnesium oxide and oral carbon adsorbent for coronary artery calcification in predialysis CKD  [in Japanese]

    月刊薬事 = The pharmaceuticals monthly 62(4), 857-859, 2020-03

  • Model Inter-Comparison for PM2.5 Components over urban Areas in Japan in the J-STREAM Framework

    Yamaji Kazuyo , Chatani Satoru , Itahashi Syuichi , Saito Masahiko , Takigawa Masayuki , Morikawa Tazuko , Kanda Isao , Miya Yukako , Komatsu Hiroaki , Sakurai Tatsuya , Morino Yu , Kitayama Kyo , Nagashima Tatsuya , Shimadera Hikari , Uranishi Katsushige , Fujiwara Yuzuru , Hashimoto Tomoaki , Sudo Kengo , Misaki Takeshi , Hayami Hiroshi

    … Simulated hourly concentrations of nitric oxide (NO) and nitrogen dioxide (NO2), which are primary pollutant precursors of particulate matter with a diameter of 2.5 µm or less (PM2.5), showed good agreement with the observed concentrations, but most of the simulated hourly sulfur oxide (SO2) concentrations were much higher than the observations. …

    Atmosphere 11(3), 222, 2020-03

    IR 

  • Niobium-added titanium oxides powders as non-noble metal cathodes for polymer electrolyte fuel cells – Electrochemical evaluation and effect of added amount of niobium

    Ishihara Akimitsu , Arao Masazumi , Matsumoto Masashi , Tokai Tsubasa , Nagai Takaaki , Kuroda Yoshiyuki , Matsuzawa Koichi , Imai Hideto , Mitsushima Shigenori , Ota Ken-ichiro

    … An appropriate evaluation of oxide-based compound powders as non-platinum cathodes for polymer electrolyte fuel cells is required to investigate the active sites of oxide-based cathodes for the oxygen reduction reaction. … A mixture of carbon black powder as an electro-conductive material with oxide catalysts that had low electrical conductivity was attempted to evaluate the oxygen reduction reaction (ORR) activity. …

    International Journal of Hydrogen Energy 45(8), 5438-5448, 2020-02-14

    IR 

  • Deoxofluorination of graphite oxide with sulfur tetrafluoride

    Yamamoto Hiroki , Matsumoto Kazuhiko , Matsuo Yoshiaki , Sato Yuta , Hagiwara Rika

    … In this study, deoxofluorination of graphite oxide (GO) using sulfur tetrafluoride (SF₄) at a temperature below the decomposition temperature of GO (∼200 °C) was investigated for the first time with and without HF catalysis. … When compared with direct fluorination using elemental fluorine, deoxofluorination using SF₄ has the advantages of high reactivity with hydroxy groups and the preservation of the carbon skeleton, and the reaction results in the formation of graphite oxyfluoride. …

    Dalton Transactions 49(1), 47-56, 2020-01-07

    IR 

  • Effect of amorphous oxide on the acicular ferrite formation in the weld metal of low-carbon steel  [in Japanese]

    NAKAYAMA Koyo , UTO Kyohei , KISAKA Yuji , KIMURA Fumiaki , TERASAKI Hidenori

    シールドガス組成およびチタン添加量を変化させたガスメタルアーク溶接金属中の酸化物を対象に統計的に酸化物、アシキュラーフェライト界面をナノ解析を行った。その結果、アモルファス酸化物が存在する場合にアシキュラーフェライトが形成されやすいことを統計的に示す。さらに、アモルファス酸化物からのアシキュラーフェライト形成メカニズムについても議論する。

    Preprints of the National Meeting of JWS 2020s(0), 118-119, 2020

    J-STAGE 

  • A Needle-type Complementary Metal Oxide Semiconductor-compatible Glucose Fuel Cell Fabricated by Carbon Nanohorns for Biomedical Applications

    ISLAM Md. Zahidul , MATSUYAMA Naofumi , CHEN Guowei , KOBAYASHI Atsuki , MOMOI Yuichi , NIITSU Kiichi

    … <p>This study details the development of a solid-state complementary metal-oxide semi-conductor (CMOS)-compatible glucose fuel cell, consisting of various amounts (% wt.) carbon nanohorns (CNHs). …

    Electrochemistry, 2020

    J-STAGE 

  • Analytical Solution of Temperature Change in Two Layers in Short Time using Laplace Transform:Complement for Table of Laplace Transforms  [in Japanese]

    MONDE Masanori

    … An exact solution can be given using the recurrence relation in order to analyze the temperature distribution in composite slabs with one very thin layer of poor heat conductivity, such as a oxide layer on a carbon steel, in a very short time, after which heat transfer suddenly takes place. …

    Thermal Science and Engineering 28(2), 9-14, 2020

    J-STAGE 

  • Glycerol Oxidation Catalyzed by High-valency Ruthenium Species at Electrochemical Interfaces

    Tabata Hiro , Kato Shintaro , Yamaguchi Shingi , Harada Takashi , Iwase Kazuyuki , Kamiya Kazuhide , Nakanishi Shuji

    … In this study, Ru-modified covalent triazine framework (Ru-CTF) and ruthenium oxide supported on carbon (RuO<sub>2</sub>/C) were used as model materials with high-valency Ru species. …

    Chemistry Letters 49(5), 513-516, 2020

    J-STAGE 

  • Effects of O<sub>2</sub>, CO<sub>2</sub> and H<sub>2</sub>O on the Adsorption of NO on Cerium Oxide

    YOSHIKAWA Kohei , AOYAGI Takuya , ONODERA Taigo , TAKAHASHI Eri , NAITO Takashi , MIYAKE Tatsuya , KONDO Junko Nomura

    <p>CeO<sub>2</sub>表面におけるNO吸着機構,および吸着におけるO<sub>2</sub>,CO<sub>2</sub>,およびH<sub>2</sub>Oの共存影響を<i>in-situ</i> IR分光法を用いて解析した。NOはCeO<sub …

    Journal of the Japan Petroleum Institute 63(3), 158-162, 2020

    J-STAGE 

  • NO<sub>x</sub> emissions from ammonia-hydrogen fueled SI Engines  [in Japanese]

    KOIKE Makoto , SUZUOKI Tetsunori , MIYAGAWA Hiroshi

    … <p>Ammonia has been suggested as a potential carbon-free fuel for spark ignition reciprocating engines. … As ammonia is a nitrogen compound, nitrogen oxide (NO<sub>x</sub>) emissions are important subjects to study. … was nitric oxide (NO). …

    Transactions of the JSME (in Japanese) 86(884), 19-00176-19-00176, 2020

    J-STAGE 

  • Influence of Additives on Zinc Oxide-Based Dye Sensitized Solar Cells

    Geleta Tesfaye Abebe , Imae Toyoko

    … In addition, the effect of addition of carbon dots on them was assessed. … was mixed with ZnO, the power conversion efficiency achieved 1.6 times of that of ZnO but the coexistence of carbon dots and ZrS<sub>2</sub> … Meanwhile, when carbon dots are added to ZnO/ZrS<sub>2</sub>(10 wt%) DSSC, the electrons generated and transferred to ZrS<sub>2</sub> …

    Bulletin of the Chemical Society of Japan 93(4), 611-620, 2020

    J-STAGE 

  • Effect of Copper Collector Form on Recovery of Suspended Platinum and Palladium Metals in the Al<sub>2</sub>O<sub>3</sub>-CaO-SiO<sub>2</sub> Slag at 1723 K  [in Japanese]

    Murata Takashi , Yamaguchi Katsunori

    … The collector material of Cu or Cu<sub>2</sub>O was added to the suspended PGM particles in the slag, the time dependence of platinum and palladium concentrations in the slag was investigated at 1723 K under carbon saturation. … Copper oxide dissolved in the slag was reduced to metallic copper in the slag and alloyed with the suspended PGM particles to form the liquid Cu-PGM system. …

    Journal of the Japan Institute of Metals and Materials 84(4), 115-120, 2020

    J-STAGE 

  • Room-Temperature Activation of Methane and Direct Formations of Acetic Acid and Methanol on Zn-ZSM-5 Zeolite: A Mechanistic DFT Study

    Mahyuddin Muhammad Haris , Tanaka Seiya , Shiota Yoshihito , Yoshizawa Kazunari

    <p>Zn-ZSM-5 zeolite is a promising catalyst that activates methane at room temperature without the need of a high-temperature pre-oxidation step, which is required for Fe- and Cu-ZSM-5 to form F …

    Bulletin of the Chemical Society of Japan 93(3), 345-354, 2020

    J-STAGE 

  • Electrochemical Properties of Pillared Carbons for the Electrode of Electric Double Layer Capacitor

    MATSUO Yoshiaki , KINO Takuma , INAMOTO Junichi , KIMIZUKA Osamu , NISHIJIMA Motoaki , KINOSHITA Hajime

    … <p>Microporous pillared carbon prepared from graphite oxide silylated with methyltrichlorosilane for three times was tested for the electrode of electric double layer capacitor. … These results indicated that two larger ions can not be accommodated in a micropore of pillared carbon.</p> …

    Electrochemistry 88(2), 53-56, 2020

    J-STAGE 

  • Roles of endogenous hydrogen sulfide in the bladder and prostate  [in Japanese]

    Shimizu Takahiro , Zou Suo , Shimizu Shogo , Higashi Youichirou , Saito Motoaki

    <p>近年,硫化水素(H<sub>2</sub>S)が一酸化窒素や一酸化炭素に次ぐ第3のガス状伝達物質であることが明らかにされ,神経伝達の修飾,血管平滑筋の弛緩など,多彩な生理作用を示すことが報告されている.一方で著者らの研究対象である下部尿路組織(膀胱および前立腺)におけるH<sub>2</sub>Sの生理機能については,少なくとも前立 …

    Folia Pharmacologica Japonica 155(2), 74-79, 2020

    J-STAGE  Ichushi Web 

  • Strategy of Drug Development Based on the Bioactive Gas-carrying Capacity of Hemoglobin  [in Japanese]

    Taguchi Kazuaki , Matsumoto Kazuaki , Maruyama Toru , Otagiri Masaki

    … <p>Bioactive gas molecules, including oxygen, nitric oxide and carbon monoxide (CO), exhibit a variety of physiological activities, and are associated with the onset and progress of some disorders. … Hemoglobin is likely an ideal carrier of bioactive gases, since hemoglobin in red blood cells innately carries oxygen in the form of oxyhemoglobin, nitric oxide in the form of <i>S</i>-nitrosohemoglobin, and CO in the form of carbonylhemoglobin. …

    YAKUGAKU ZASSHI 140(2), 141-146, 2020

    J-STAGE 

  • Synthesis of Diphenylphosphine Oxide Derivative and Its Flame Retardant Application in Epoxy Resin

    Tian Xiujuan , Yin Qingqing , Wang Zhongwei

    … <p>A type of reactive phosphorus based flame retardant, hydroxy(4-hydroxyphenyl)methyl)diphenylphosphine oxide (DPO-H), was synthesized and characterized by Fourier Transform Infrared (FTIR) and Nuclear Magnetic Resonance (NMR) spectroscopies. … The results indicated that DPO-H can increase the flame retardation and carbon formation of epoxy resin. …

    Journal of Photopolymer Science and Technology 32(6), 769-778, 2020

    J-STAGE 

  • Observation of vertical profiles of NO, O<SUB>3</SUB>, and VOCs to estimate their sources and sinks by inverse modeling in a Japanese larch forest

    WADA Ryuichi , MIYAMA Takafumi , NAKANO Takashi , YONEMURA Seiichiro , MATSUMI Yutaka , KATATA Genki , UEYAMA Masahito , TANI Akira , MOCHIZUKI Tomoki , MIYAZAKI Yuzo , KAWAMURA Kimitaka , TAKAHASHI Yoshiyuki , SAIGUSA Nobuko , TAKANASHI Satoru

    … Trace atmospheric gases in the biosphere, such as ozone (O<SUB>3</SUB>), nitrogen oxides (NO<SUB>x</SUB>), and biogenic volatile organic compounds (BVOCs), can affect the carbon cycle as well as the climate. … Vertical profiles of nitric oxide (NO), O<SUB>3</SUB>, and volatile organic compound (VOC) concentrations were measured at a Japanese larch (<I>Larix kaempferi</I>) forest in the foothills of Mt. Fuji in Japan over an 11-day period in July 2012. …

    Journal of Agricultural Meteorology 76(1), 1-10, 2020

    J-STAGE 

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