Shinohara Yuji

Faculty of Engineering Center for Advanced Research of Energy and Materials Labratory of Chemical Energy ConversionsPart-time Fellow
Last Updated :2025/02/13

■Researcher basic information

Researchmap personal page

Research Keyword

  • 水圏応用化学
  • 有機資源化学
  • 計算機化学
  • 触媒変換化学

Research Field

  • Life sciences, Aquaculture
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Catalytic processes and resource chemistry, 有機資源化学
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Electronic devices and equipment, デバイス材料
  • Informatics, Computational science, 量子化学計算
  • Nanotechnology/Materials, Inorganic materials, 工業触媒

■Career

Career

  • Jul. 2020 - Present
    Hokkaido University, Faculty of Engineering, 博士研究員
  • May 2020 - Present
    Hokkaido University, Faculty of Engineering, 学術研究員
  • Apr. 2017 - Jun. 2020
    Hokkaido University, Faculty of Engineering, 研究支援推進員
  • Jan. 2008 - Dec. 2013
    新創源有限会社 (中国北京市), 副董事長
  • Apr. 1999 - Dec. 2007
    Seiko Epson Corp., 研究開発本部

Educational Background

  • Apr. 1996 - Mar. 1999, Shinshu University, 大学院, 工学系研究科博士後期課程 (材料工学)
  • Apr. 1994 - Mar. 1996, Shinshu University, 大学院, 工学系研究科博士前期課程 (材料工学)
  • Apr. 1990 - Mar. 1994, Shinshu University, Faculty of Engineering, Chemistry and Material Engineering

■Research activity information

Papers

  • Effect of the electronic state on low-rank coals with Ca2+ ion exchange
    Yuji Shinohara, Naoto Tsubouchi
    Journal of Molecular Structure, 1218, 128544, 128544, Elsevier BV, Oct. 2020, [Peer-reviewed]
    Scientific journal
  • Quantum chemical study on adsorption of hydrogen chloride on Zn-doped carbon materials
    Yuji Shinohara, Naoto Tsubouchi
    Environmental Technology & Innovation, 19, 100883, 100883, Elsevier BV, Aug. 2020, [Peer-reviewed]
    Scientific journal
  • Electronic State of Low-Rank Coals with Exchanged Sodium Cations.
    Yuji Shinohara, Naoto Tsubouchi
    ACS omega, 5, 3, 1688, 1697, 28 Jan. 2020, [Peer-reviewed], [International Magazine]
    English, Our previous experimental study showed that Na+-exchanged coal prepared from low-cost natural soda ash is an excellent catalyst for steam gasification of low-rank coals using fixed-bed quartz reactors. However, it is difficult to experimentally clarify the effect of Na ion exchange on low-rank coal. In order to investigate the influence of Na+ ions on low-rank coal, this study determined the electronic state between the Na+-exchanged coal model and raw coal model and compared them using RHF/6-311G* and B3LYP/6-31G*. The experiments revealed that Na ion exchange has a significant effect on low-rank coal gasification. The model structure of low-rank coal is considered to change significantly in terms of the electronic state before and after Na exchange even with a simple main molecular structure. Molecular models where H of COOH/OH was ion-exchanged with one, two, and three Na ions were developed, and quantum chemical calculations were performed. The results showed that when the number of Na+-exchanged sites is increased, the electron state on the coal molecule becomes more negatively charged in the case of the Na+-exchange coal model. It is presumed that this contributes to enhancing the reactivity of low-rank coal and water vapor. In addition, weak bonds in the Na+-exchanged coal molecule were examined by calculating the difference in the value of the Mulliken and Löwdin bond orders before and after Na+ exchange. The results showed that the increase in the number of exchanged Na+ in the low-rank coal molecule model increased the number of weak bonds in the molecule. It is presumed that this contributes to enhancing the decomposition of low-rank coal.
  • Formation of Surface Chlorine Species by Low Temperature Reaction of HCl with Metal-doped Carbon
    Tsubouchi Naoto, Mochizuki Yuuki, Shinohara Yuji, Kawashima Akiyuki, Ohtsuka Yasuo
    FUEL, 246, 51, 59, ELSEVIER SCI LTD, Jun. 2019, [Peer-reviewed]
    English, Scientific journal, A model carbon prepared from phenolic resin was O-2-activated and then impregnated with Ca, Cu or Zn to clarify chlorine behavior in coal utilization. Ease of interaction between HCl and the carbon material was enhanced at 100-300 degrees C. The concentration at which HCl reacted with Ca, Cu and Zn was high. The surface chloric species that were generated by reaction of the carbon substrate with HCl were studied using X-ray photoelectron spectroscopy (XPS) and temperature programmed desorption (TPD). XPS measurements suggested the presence of inorganic chloride and organic chlorine species after reaction with HCl. When the carbon samples were washed after the HCl reaction, most of the HCl was eluted. Chemically adsorbed HCl species were also detected by TPD measurement; the presence of inorganic chloride, organic chlorine and chemically adsorbed HCl species were indicated. No correlation was determined between the amount of organic chlorine species generated and the number of activated carbon sites at 100 degrees C. However, the amount of organic chlorine at 300 degrees C indicated a tendency to increase with the number of carbon sites, and the surface functional oxygen groups acted as sites for the generation of C-Cl bonds. As a result, possible scheme for the generation of organic chlorine species at low temperature by reaction between HCl and the metal-doped (Ca, Cu or Zn) carbon is discussed.
  • Catalytic effect of ion-exchanged calcium on steam gasification of low-rank coal with a circulating fluidized bed reactor
    Tsubouchi Naoto, Mochizuki Yuuki, Shinohara Yuji, Hanaoka Yuu, Ohtsuka Yasuo, Kuramoto Koji, Matsuoka Koichi
    FUEL, 234, 406, 413, ELSEVIER SCI LTD, 15 Dec. 2018, [Peer-reviewed]
    English, Scientific journal, Calcium ion exchange was performed in Indonesian low-rank coal using saturated aqueous solutions of Ca(OH)(2) at 30.0 +/- 0.1 degrees C without pH adjustment. The Ca2+ concentration and pH were monitored during ion exchange. A coal product was obtained with 3.2 mass% Ca2+. Gasification of the ion-exchanged samples was conducted in a circulating dual bubbling fluidized bed (CDBFB) reactor at 700 degrees C, 800 degrees C, and 900 degrees C. Coal carbon conversion into carbonaceous gases (CO, CO2, CH4, and C-2 hydrocarbons) using the Ca2+-exchanged coal achieved 78% at 900 degrees C in the CDBFB. The Ca catalyst led to the greatest rate enhancement at 800 degrees C, resulting in a twofold increase in the gas product yield compared to that without Ca.A comparison of carbon conversion between the CDBFB and fixed-bed reactors revealed that the conversion value using the CDBFB at 700 degrees C was very small. Regarding an examination of this influence in detail, it seems that the existing H-2 adhered primarily to the active sites of the char, and the use of Ca2+-exchanged coal led to a reverse shift reaction.
  • Production of activated carbon from peat by with natural soda ash and effect of nitrogen addition on the development of surface area
    Naoto Tsubouchi, Megumi Nishio, Yuji Shinohara, Javzandolgor Bud, Yuuki Mochizuki
    Fuel Processing Technology, 176, 76, 84, Elsevier B.V., 01 Jul. 2018, [Peer-reviewed]
    English, Scientific journal, The optimum conditions for the production of high-surface-area activated carbon from peat were examined in a fixed-bed quartz reactor by using natural soda ash (>
    99 mass% Na2CO3) as the activation agent and urea (CH4N2O) as the nitrogen source. In the heating of the peat/urea/Na2CO3 mixture, the surface area of activated carbon significantly increased when the temperature was higher than 700 °C, and it reached 940 and 1100 m2/g at 800 and 900 °C, respectively. When the mixture was also held at 700 and 800 °C for 1 h, the surface area drastically increased from 100 m2/g without holding treatment to 730 m2/g at 700 °C, and it became 1050 m2/g at 800 °C. The effect of the peat/urea/Na2CO3 mixing ratio on the increase in surface area was investigated. The ratio of urea to Na2CO3 was fixed at 1/2 and the proportion of peat was varied in the range of 0.5–2
    the surface area was maximum when peat = 1. In another case, the ratio of peat to urea was fixed at 1/1 and the proportion of Na2CO3 was varied in the range of 1–4. In this case, the surface area was maximum (940 m2/g) when Na2CO3 = 2 but decreased when Na2CO3 = 4. On the other hand, when the ratio of peat to Na2CO3 was fixed at 1/2 and the proportion of urea was varied in the range of 0.5–3, the surface area markedly increased up to urea = 1
    however, a significant increase did not take place thereafter, even when the proportion of urea was increased. According to these results, the optimum mixing ratio of peat/urea/Na2CO3 and heat treatment conditions to produce high-surface-area activated carbon from peat may be 1/1–3/2 and holding at 800–900 °C for 0–1 h, respectively.
  • Low-Temperature Reactions of HCl with Metal-Doped Carbon
    Naoto Tsubouchi, Yuuki Mochizuki, Yuji Shinohara, Akiyuki Kawashima, Yasuo Ohtsuka
    Energy and Fuels, 32, 6, 6970, 6977, American Chemical Society, 21 Jun. 2018, [Peer-reviewed]
    English, Scientific journal, A model carbon prepared from phenolic resin was activated with O2 and then impregnated with Ca, Cu, or Zn to examine the relationship between the amount of HCl desorbed from carbon samples containing various metals in this lower temperature range (100 and 300 °C) and clarified the effect of active sites on HCl adsorption. The results showed that interactions between HCl and carbon were enhanced at temperatures in the range of 100-300 °C and that the amount of HCl reacted was increased by doping with these metals. The different HCl concentration profiles at 100 and 300 °C were obtained with a greater overall decrease in HCl at the lower temperature (100 °C). Those are attributed to increased physical adsorption of HCl at 100 °C. The mass of HCl reacted increased in the order of Cu <
    Ca <
    Zn at 300 °C and Ca <
    Cu <
    Zn at 100 °C, and HCl reacted at 300 °C was evidently more stable than that reacted at 100 °C. Organochlorine compounds, chemisorbed HCl, and inorganic chlorides were all identified on the carbon surfaces following exposure to a flow of HCl. The organochlorine species and chemisorbed HCl were desorbed, along with the generation of H2O, upon heating the samples to 700 °C, while inorganic chlorides and additional H2O were desorbed above this temperature. Both the mass of organochlorines generated and the amount of HCl absorbed were found to increase with the number of active sites at 300 °C
    however, that was exceeded remarkably at 100 °C.
  • Steam Gasification of Low-Rank Coal with a Nanoscale Ca/Na Composite Catalyst Prepared by Ion Exchange
    Naoto Tsubouchi, Yuuki Mochizuki, Yuji Shinohara, Yuu Hanaoka, Takemitsu Kikuchi, Yasuo Ohtsuka
    Energy and Fuels, 32, 1, 226, 232, American Chemical Society, 18 Jan. 2018, [Peer-reviewed]
    English, Scientific journal, Ca2+ and Na+ cations were separately or consecutively ion-exchanged with an Indonesian low-rank coal using saturated aqueous solutions of Ca(OH)2 and/or soda ash at 20-40 °C without pH adjustment. This was done by adding aqueous solutions of the soda ash and/or calcium hydroxide to a dispersion of coal particles in deionized water, while monitoring the Na+ and Ca2+ concentrations and pH of the resulting mixture. A 3.5 mass % Ca2+-exchanged coal, a 1.6 mass % Na+-exchanged coal and a 3.8 mass % Ca2+- and 1.0 mass % Na+-exchanged coal were obtained. The catalytic pyrolysis and subsequent gasification of these ion-exchanged specimens were performed in a fixed bed quartz reactor at 650, 700, or 750 °C. X-ray diffraction analyses of the samples pyrolyzed at 700 °C found no evidence of Na or Ca species, indicating that these were present as nanoscale particles. The Ca2+/Na+-exchanged coal underwent steam gasification more readily than the other samples, with complete char conversion of this material following 1 h of processing at 700 °C. The use of a binary metal catalyst was also found to lower the required reaction temperature by more than 100 °C.
  • An exploratory study on effect of the isomorphic replacement of Ti(4+) ions by various metal ions on the light absorption character of TiO(2)
    T Nishikawa, T Nakajima, Y Shinohara
    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 545, 1-3, 67, 74, ELSEVIER SCIENCE BV, Jul. 2001, [Peer-reviewed]
    English, Scientific journal, The electronic states of anatase and rutile TiO(2) crystals and of TiO(2) crystals with Ti(4+) ions isomorphically replaced by various metal ions (V(3+), V(4+), V(5+), Cr(3+), Mn(3+), Fe(3+), Co(3+), Ni(2+), Ni(3+), and Rh(3+)) were calculated using the DV-X alpha method, which is a density functional method.
    It was found that the band gap changed in parallel to the radius of the replacing ion, except for a few cases. This tendency agrees with an experimental result in the literature that the light absorption band of anatase shifts to a longer wavelength region, when metal ions are injected. Calculations showed that the replacement of Ti(4+) by Ni(3+) and V(5+) gave the largest decreases in the band gap, suggesting that these metal ions are the most efficient replacing ions for TiO(2).
    The isomorphic replacement resulted in the formation of new energy levels of the metal 3d orbitals in the forbidden band of TiO(2). These levels seemed to interact with the 2p orbitals of oxide ions in TiO(2), resulting in a decreased band gap. An increase in the degree of covalent bonds between the replacing ions and the oxide ions probably contributes to the decrease in the band gap. (C) 2001 Elsevier Science B.V. All rights reserved.
  • A quantum chemical study of vapor-phase Beckmann rearrangement mechanisms on oxide catalysts
    Y Shinohara, S Mae, D Shouro, T Nakajima
    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 497, 1, 9, ELSEVIER SCIENCE BV, Feb. 2000, [Peer-reviewed]
    English, Scientific journal, The vapor-phase Beckmann rearrangement mechanism of cyclohexanone oxime on oxide catalysts (SiO2-Al2O3 gamma-Al2O3, SiO2 and ZnO) was quantum chemically investigated using MOPAC 93. It was suggested that the rearrangement on the oxide surfaces proceeds via a fast step where a Bronsted acid site interacting with the nitrogen atom is transferred to the oxygen atom of the oxime. It was also suggested that the reaction then proceeds via a rate-determining step where the hydroxy group is eliminated with simultaneous alkyl group transfer as proposed for the liquid-phase rearrangement. The activation energies of the vapor-phase rearrangement of the oximes on the oxides were calculated on the basis of this suggested mechanism. The order of the activation energies for these oxides was in good agreement with that of the experimentally determined catalytic selectivities of E-caprolactam. This agreement indicates the validity of the mechanism proposed for the liquid-phase reaction by Landis and Venuto for the vapor-phase reaction. The proposal, suggested by Nguyen et al. for the liquid-phase reaction, in that the rate determining step is the transfer of the Bronsted acid, i.e. proton from the nitrogen atom to the oxygen atom of the oxime is invalid on oxide catalysts. (C) 2000 Elsevier Science B.V. All rights reserved.
  • Prospect of activating a photocatalyst by sunlight - A quantum chemical study of isomorphically substituted titania
    T Nishikawa, Y Shinohara, T Nakajima, M Fujita, S Mishima
    CHEMISTRY LETTERS, 11, 11, 1133, 1134, CHEMICAL SOC JAPAN, Nov. 1999, [Peer-reviewed]
    English, Scientific journal, DV-X,, calculations indicated the possibility of shifting the absorption edge of titania to the sunlight region by isomorphic substituting of a transition metal cation for a titanium ion. Among the cations addressed here, Ni3+ and V5+ reduced the band gap most effectively. The efficiency of the reduction by the substituting cation increased as the radius of the cation decreased.
  • A theoretical study of the dehydration and the dehydrogenation processes of alcohols on metal oxides using MOPAC
    Y Shinohara, T Nakajima, S Suzuki
    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 460, 1-3, 231, 244, ELSEVIER SCIENCE BV, Feb. 1999, [Peer-reviewed]
    English, Scientific journal, Using a semi-empirical molecular orbital method, PM3, and 2-propanol as an example, the dehydration and the dehydrogenation processes of alcohol on oxide catalysts were studied. The catalysts addressed here were four kinds of oxides (Al2O3, SiO2, ZnO, CdO) whose reaction selectivities had been experimentally determined. The usual models consisting of a surface metal ion, several oxide ions and an isopropoxy group were used in calculations. For the dehydration, heats of formation of the models were calculated at each point of the process where the distance between a beta-hydrogen of the group and a basic site (i.e. oxygen of the group or a surface oxide ion) or a metal ion was gradually shortened, or where the length of the C-alpha-O bond of the group was gradually increased. A reasonable dehydration mechanism was estimated by comparing activation energies calculated from the transitions of the heats of formation. The most probable dehydrogenation mechanism was also estimated in a similar way by gradually making an alpha-hydrogen close to a surface oxide ion, the metal ion or a surface proton. It was concluded that the dehydration proceeds by scission of the C-alpha-O bond of the group after its oxygen was attacked by some electrophile on the surface and that the dehydrogenation proceeds by a mechanism in which an alpha-hydrogen of the group was extracted by the metal ion.
    Based on the dehydration mechanism thus deduced, alkoxy groups generated by adsorption of the primary, secondary and tertiary alcohols on SiO2 were calculated in order to estimate the activation energies of their decompositions. In result, the order of the energies was found to be in good agreement with that of the decomposition rates experimentally determined by Kitahara. This agreement gives support to the validity of the mechanism deduced for the dehydration of alcohol. (C) 1999 Elsevier Science B.V. All rights reserved.
  • Quantum chemical studies on isomerization mechanisms of propylene oxide and on catalytic properties of metal oxides
    Y Shinohara, T Mitamura, T Nakajima, S Suzuki
    NIPPON KAGAKU KAISHI, 1998, 10, 643, 649, CHEMICAL SOC JAPAN, Oct. 1998, [Peer-reviewed]
    Japanese, Scientific journal, On the isomerization of propylene oxide (PO) to propionaldehyde (PA) and/or acetone (AC) on five oxide catalysts (SiO2, Al2O3, MgO, ZnO and CdO), mechanisms and selectivity-controlling factors of the isomerization were studied by the MOPAC-PM3 semi-empirical calculation method. The validity of the mechanisms proposed so far was discussed by comparison of activation energies for the isomerization of PO with experimentally determined selectivity on the five catalysts. It was found that PO isomerizes to PA on a metal ion (Lewis acidic site) and that the selectivity depends on the net charge of the site, i.e., the PA selectivity increases with the net charge of the site. Active sites adjacent to the Lewis acidic site, which are the metal ions in case of SiO2, Al2O3 and MgO or the surface oxide ions in case of ZnO, are able to stabilize the reaction intermediate. It was concluded that the degree of the stabilization tends to increase as the bond length between the metal ion and the oxide ion decreases.
    The isomerization of PO to AC, however, was estimated to proceed without chemisorbing of the reactant on the surface of the catalyst.
  • A Computational Chemical Investigation of the Dehydration and Dehydrogenation of Ethanol on Oxide Catalysts
    SHINOHARA Yuji, NAKAJIMA Tsuyoshi, SUZUKI Satoshi, MISHIMA Shozi, ISHIKAWA Hideaki
    The Journal of chemical software, 4, 3, 89, 100, 化学ソフトウェア学会, Sep. 1998, [Peer-reviewed]
    English
  • Study of the Interaction of Ethanol with the Bronsted and Lewis Acid Sites on Metal Oxide Surfaces Using the DV-Xα Method
    SHINOHARA Yuji, SATOZONO Hiroshi, NAKAJIMA Tsuyoshi, SUZUKI Satoshi, MISHIMA Shozi
    The Journal of chemical software, 4, 2, 41, 50, 化学ソフトウェア学会, Jun. 1998, [Peer-reviewed]
    English
  • Study on isomerization mechanism of propylene oxide on metal oxides by semi-empirical calculation method
    T Mitamura, Y Shinohara, T Nakajima
    NIPPON KAGAKU KAISHI, 1998, 3, 174, 180, CHEMICAL SOC JAPAN, Mar. 1998, [Peer-reviewed]
    Japanese, Scientific journal, On the isomerization of propylene oxide (PO) to propionaldehyde (PA), acetone (AC), and allyl alcohol (AA) on five oxide catalysts (SiO2, Al2O3, MgO, ZnO, CdO), the mechanism and selectivity-controlling factors of the isomerization were studied by the MOPAC-PM3 semi-empirical calculation method. A reasonable mechanism was derived from requirement that the selectivity difference of the catalysts should be consistently interpreted by the calculated electronic states of PO. With regard to the selectivity-controlling factors, it was found that PA and AC selectivities correlate closely with net charges of Lewis acid site (surface metal ion) and basic site (surface oxide ion) on oxide clusters having formal charges of 1+ (Lewis acid site) and 1- (basic site), respectively. There was no correlation concerning AA selectivity. As the result, it was supported by computational chemistry that PA and AC selectivities are used as measures of surface acidity and basicity, respectively, of oxide catalysts. These results suggest that it is a simple and effective method to derive a reasonable reaction mechanism by comparative study of semi-empirical calculations with results of experiments on a series of catalysts.
  • A Program for Numerical Integration of Reaction Rate Laws on the Basis of the Runge-Kutta Method
    SHINOHARA Yuji, NAKAJIMA Tsuyoshi, MISHIMA Shozi
    The Journal of chemical software, 3, 3, 109, 120, 化学ソフトウェア学会, Dec. 1996, [Peer-reviewed]
    Japanese, A computer program was prepared to calculate time-courses of concentrations of chemical species involved in a chemical reaction. On the basis of Runge-Kutta iteration method, the program integrates numerically simultaneous differential equations which express relations between the concentrations and the rates of these changes. The program was designed to monitor the rates for all species from moment to moment, to select the best-suited iteration interval for the integration and then to carry out the integration with the interval. The program was applied to the following reaction systems : 1) oscillatory reaction in an aqueous solution of IO3-, H+, I2, I-and H2O2; 2) saponification of ethyl acetate; and 3) gas phase chain reaction of bromine with hydrogen. The results showed that the program gave accurate time-courses of the concentrations of reactants and products in relatively short processing time.

Other Activities and Achievements

  • 魚の鮮度をシミュレーション~北大研究者らがシステム開発~
    坪内直人, 篠原祐治, 北海道建設新聞電子版 (e-kensin), 19 Sep. 2021
  • 魚の鮮度をシミュレーション~北大研究者らがシステム開発~               
    坪内直人, 篠原祐治, 北海道建設新聞, 16 Sep. 2021
  • Quantum Chemical Study on Adsorption of Hydrogen Chloride with Zn-Doped Carbon Materials               
    Yuji Shinohara, Naoto Tsubouchi, Abstracts of the 18th Asian Pacific Confederation of Chemical Engineering Congress, APCChE2019 Web, 2019
    English
  • Production of High-Surface-Area Activated Carbon from Peat by Chemical Activation with Natural Soda Ash               
    Javzandolgor Bud, Megumi Nishio, Yuji Shinohara, Yuuki Mochizuki, Naoto Tsubouchi, Proceedings of the 14th Japan-China Symposium on Coal and C1 Chemistry, USB, 2018
    English
  • Steam Gasification Runs and Quantum Chemical Calculations of Low-Rank Coals with Exchanged Sodium Cations               
    Yuji Shinohara, Naoto Tsubouchi, Proceedings of the 8th Tokyo Conference on Advanced Catalytic Science and Technology, USB, 2018
    English
  • MOPACを利用した触媒反応機構の研究
    前 学志, 篠原 祐治, 中島 剛, 化学ソフトウェア学会年会研究討論会講演要旨集, 1998, 56, 57, 01 Oct. 1998
    Japanese
  • PC-UNIXによる半経験的分子軌道計算環境の構築
    鈴木 哲, 篠原 祐治, 和田 朋久, 化学ソフトウェア学会年会研究討論会講演要旨集, 1997, 68, 69, 01 Nov. 1997
    Japanese

Books and other publications

  • 月刊 BIO INDUSTRY (ISSN 09106545) (魚介類の鮮度評価システム『MIRASAL』の開発 (pp.35-43))               
    篠原祐治, 永石博志, 坪内直人
    シーエムシー出版 (編集:渡邊翔, 古川みどり, 品田篤), Jul. 2022, [Joint work]

Lectures, oral presentations, etc.

  • 水産業の未来を拓く鮮度見える化システム「MIRASAL」の開発               
    坪内直人, 篠原祐治
    第 17 回ロバスト農林水産工学「科学技術先導研究会」, 20 Oct. 2023
    [Invited]
  • 超高鮮度管理システム「MIRASAL」の開発 ~基礎編~               
    坪内直人, 篠原祐治
    日本食品工学会 AtoI プロジェクト, 11 Oct. 2023
    [Invited]
  • 鮮度見える化システムを活用した水産業におけるデジタルトランスフォーメーションの可能性               
    坪内直人, 篠原祐治
    DX ゼミナール in 札幌 vol.4, 14 Jul. 2023
    [Invited]
  • アイナメにおける鮮度予測モデルの検証               
    篠原祐治, 吉岡武也, 坪内直人
    令和 5 年度日本水産学会春季大会, 29 Mar. 2023
  • 魚介類の鮮度可視化管理システムの開発               
    坪内直人, 篠原祐治, 都木靖彰
    第 12 回ロバスト農林水産工学「科学技術先導研究会」(令和 4 年度「ロバスト農林水産工学研究プログラム」成果報告会), 20 Mar. 2023
  • 魚介類の鮮度見える化システム「MIRASAL」の開発               
    坪内直人, 篠原祐治
    農林水産省『「知」の集積と活用の場』産学官連携協議会令和 4 年度発表会, Feb. 2023
  • 「 MIRASAL 」! 魚介類の鮮度可視化管理システムの開発               
    坪内直人, 篠原祐治
    農林水産省『「知」の集積と活用の場』産学官連携協議会令和 4 年度ポスターセッション (オンライン), 15 Dec. 2022
  • 魚介類の超高鮮度管理を目指したシステム「MIRASAL」の開発               
    坪内直人, 篠原祐治
    秋田化学工学懇話会第 53 回ケミカルエンジニアリング交流会, 09 Dec. 2022
  • 「 MIRASAL 」! 魚介類の鮮度可視化管理システムの開発               
    坪内直人, 篠原祐治
    農林水産省『「知」の集積と活用の場』産学官連携協議会令和 4 年度ポスターセッション (対面), 30 Nov. 2022
  • 分子軌道法を用いた Ca ドープ炭素質物質上における 塩化水素の吸着状態の推定               
    篠原祐治, 坪内直人
    第 59 回石炭科学会議, 21 Oct. 2022, Japanese
  • 量子化学計算による新触媒設計技術の確立⑤               
    篠原祐治, 坪内直人
    日本鉄鋼協会第 184 回秋季講演大会「脱 CO2 を目指した鉄鋼 CCU 技術」シンポジウム, 22 Sep. 2022, Japanese
  • ホッケにおける鮮度予測モデルの妥当性の検討               
    篠原祐治, 吉岡武也, 永石博志, 坪内直人
    令和 4 年度日本水産学会秋季大会, 06 Sep. 2022, Japanese
  • 魚介類の鮮度予測モデルの提案               
    篠原祐治(北大), 永石博志(産総研), 稲田孝明(電大), 坪内直人(北大)
    令和3年度日本水産学会秋季大会, 15 Sep. 2021
    13 Sep. 2021 - 16 Sep. 2021
  • Quantum Chemical Study on Adsorption Stability of Hydrogen Chloride Gas on Zn-Doped Carbonaceous Materials               
    Yuji SHINOHARA, Naoto TSUBOUCHI
    第57回石炭科学会議, 28 Oct. 2020, Japanese, Oral presentation
    27 Oct. 2020 - 28 Oct. 2020
  • 石炭膨張性に対する有機化合物の添加効果に関する分子動力学的評価               
    篠原 祐治, 坪内 直人
    第20回北海道エネルギー資源環境研究発表会, 28 Jan. 2020, Oral presentation
  • Evaluation of Coal Dilatation by the Addition of Organic Compounds using Molecular Dynamics Simulation               
    Yuji SHINOHARA, Naoto TSUBOUCHI
    第56回石炭科学会議, 30 Oct. 2019, Japanese, Oral presentation
    29 Oct. 2019 - 30 Oct. 2019
  • Quantum chemical study on adsorption of hydrogen chloride with Zn-doped carbon materials               
    Yuji Shinohara, Naoto Tsubouchi
    the 18th Asian Pacific Confederation of Chemical Engineering Congress, 24 Sep. 2019
  • 塩化水素と亜鉛ドープ炭素物質の反応による有機塩素種の生成に関する量子化学的研究               
    Yuji Shinohara
    第 9 回エネルギー・マテリアル融合領域シンポジウム, 19 Jun. 2019
  • 塩化水素とZnドープ炭素物質の反応に関する量子化学的研究               
    篠原 祐治, 坪内 直人
    第 19 回北海道エネルギー資源環境研究発表会, Jan. 2019
    [Domestic Conference]
  • Production of High-Surface-Area Activated Carbon from Peat by Chemical Activation with Natural Soda Ash               
    Javzandolgor Bud, Megumi Nishio, Yuji Shinohara, Yuuki Mochizuki, Naoto Tsubouchi
    The 14th Japan-China Symposium on Coal and C1 Chemistry, Sep. 2018
    [International presentation]
  • Quantum Chemical Calculations of Steam Gasification using Low-Rank Coals with Exchanged Sodium Cations               
    Yuji Shinohara
    The 14th Japan-China Symposium on Coal and C1 Chemistry, Japan, Sapporo, Sep. 2018, English, Oral presentation
    [International presentation]
  • Steam Gasification Runs and Quantum Chemical Calculations of Low-Rank Coals with Exchanged Sodium Cations               
    Yuji Shinohara
    The 8th Tokyo Conference on Advanced Catalytic Science and Technology, Japan, Yokohama, Aug. 2018, English
    [International presentation]
  • ゼロエミッションを目指した資源変換技術の開発               
    坪内直人, 望月友貴, 篠原祐治
    第 8 回エネルギー・マテリアル融合領域シンポジウム, Jun. 2018
  • ナトリウム担持褐炭に対する量子化学的検討               
    篠原祐治, 坪内直人
    第 18 回北海道エネルギー資源環境研究発表会, Jan. 2018
  • 次世代型石炭ガス化複合発電用ガス化触媒の開発~ナトリウムカチオンを担持した褐炭に対する量子化学的検討               
    篠原祐治, 坪内直人
    Jan. 2018
  • 地球環境問題の解決を目指した次世代型石炭利用法の開発               
    坪内直人, 望月友貴, 篠原祐治
    第 7 回エネルギー・マテリアル融合領域シンポジウム, Jan. 2018
  • 浸漬熱によるSiC粉末の表面状態評価
    遠藤拓也, 井上賢太郎, 田中諭, 植松敬三, 井上啓一, 篠原祐治, 上原正光
    日本セラミックス協会年会講演予稿集, 22 Mar. 2005, Japanese
  • SiC粉末表面の酸化状態と浸漬熱 ―分子軌道法による解析―
    内田希, 田中諭, 植松敬三, 井上啓一, 篠原祐治, 上原正光
    日本セラミックス協会年会講演予稿集, 22 Mar. 2005, Japanese
  • シリコン単結晶表面のはっ水性に関する分子軌道法を用いた研究
    井上賢太郎, 田中諭, 内田希, 植松敬三, 井上啓一, 篠原祐治, 上原正光
    日本セラミックス協会秋季シンポジウム講演予稿集, 17 Sep. 2004, Japanese
  • SiC粉体の浸漬熱測定による表面評価
    井上賢太郎, 田中諭, 内田希, 植松敬三, 井上啓一, 篠原祐治, 上原正光
    日本セラミックス協会秋季シンポジウム講演予稿集, 17 Sep. 2004, Japanese
  • 窒化ケイ素原料粉末の表面状態の浸漬熱による表面評価
    松川豊和, 菅原一文, 田中諭, 内田希, 植松敬三, 篠原祐治, 上原正光
    日本セラミックス協会年会講演予稿集, 22 Mar. 2003, Japanese
  • 非酸化物系セラミックス原料粉体の浸漬熱による表面評価
    菅原一文, 田中諭, 内田希, 植松敬三, 篠原祐治, 上原正光
    日本セラミックス協会秋季シンポジウム講演予稿集, 22 Sep. 2002, Japanese
  • 非酸化物系セラミックス表面状態の浸漬熱を用いた評価
    菅原一文, 田中諭, 内田希, 植松敬三, 篠原祐治, 上原正光
    日本セラミックス協会年会講演予稿集, 24 Mar. 2002, Japanese
  • 半経験的分子軌道法による鉄フタロシアニンのスピン状態と最適化構造
    鈴木哲, 上原正光, 篠原祐治, 小松晴信
    配位化合物の光化学討論会講演要旨集, 30 Jul. 2001, Japanese
  • 半経験的分子軌道法による銅フタロシアニンの構造最適化計算
    鈴木哲, 上原正光, 小松晴信, 篠原祐治
    計算化学討論会講演要旨集, 05 Jun. 2001, Japanese
  • Semi-empirical MO study of the excited states of magnesium(II) porphyrin and chlorophylls.
    鈴木哲, 小松晴信, 篠原祐治, 上原正光
    光化学討論会講演要旨集, 10 Sep. 2000, Japanese
  • 半経験的分子軌道法によるフタロシアニン亜鉛(II)の幾何構造最適化と励起電子状態の計算
    鈴木哲, 上原正光, 篠原祐治, 小松晴信
    計算化学討論会講演要旨集, 01 Jun. 2000, Japanese
  • 酸化チタン光触媒の遷移金属イオンによる同型置換に基づく光吸収の可視光化の量子化学的検討
    西川智洋, 篠原祐治, 中島剛, 藤田昌樹
    計算化学討論会講演要旨集, 19 May 1999, Japanese
  • MOPACを利用した触媒反応機構の研究
    前学志, 篠原祐治, 中島剛
    化学ソフトウェア学会年会研究討論会講演要旨集, 1998, Japanese
  • 酸化物表面における2‐プロパノールの脱水機構の量子化学的検討
    篠原祐治, 中島剛
    計算化学討論会講演要旨集, 1998, Japanese
  • 酸化物上での気相ベックマン転位反応の量子化学的検討
    前学志, 篠原祐治, 中島剛
    触媒討論会討論会A予稿集, Sep. 1997, Japanese
  • Examination on propylene oxide isomerization mechanism on oxide catalyst surface by MOPAC.
    三田村崇之, 篠原祐治, 中島剛
    触媒討論会討論会A予稿集, Sep. 1997, Japanese
  • A Quantum Chemical Study of Acid-Base Properties for the Hydrogen-Bond Complexation.
    三島彰司, 加藤毅, 篠原祐治, 八巻史一, 中島剛, 鈴木哲
    日本化学会講演予稿集, Mar. 1996, Japanese
  • Quantum-chemical examination on selectivity of dehydration and dehydrogenation reactions of ethanol by catalyst.
    篠原祐治, 中島剛, 鈴木哲, 三島彰司
    中部化学関係学協会支部連合秋季大会講演予稿集, Aug. 1995, Japanese

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