Search Results 1-20 of 571

  • Molten Li Salt Solvate-Silica Nanoparticle Composite Electrolytes with Tailored Rheological Properties

    MARIUM Mayeesha , UENO Kazuhide , DOKKO Kaoru , WATANABE Masayoshi

    … <p>Nanocomposite electrolytes comprising molten Li salt solvates (MLSs) and inorganic fillers provide liquid-like processing and reasonably high Li ion transport properties. …

    Electrochemistry 88(3), 174-177, 2020


  • Magnetic characterization change by solvents of magnetic nanoparticles in liquid-phase magnetic immunoassay

    Jinno Katsuya , Hiramatsu Bunta , Tsunashima Kenta , Fujimoto Kayo , Sakai Kenji , Kiwa Toshihiko , Tsukada Keiji

    … However, in the case of the liquid phase, it is considered that the magnetic properties of MNPs are affected by physical properties such as viscosity and impurity substances such as biological substances contained in the blood. … In this study, the effect of sodium chloride (NaCl) in buffer and serum solution was evaluated to reveal the effect of serum because the sodium (Na+) and chloride (Cl-) ions in the serum dominate ion balance of blood. …

    AIP Advances 9(12), 125317, 2019-12-20


  • N-Ethyl- N-propylpyrrolidinium Bis(fluorosulfonyl)amide Ionic Liquid Electrolytes for Sodium Secondary Batteries: Effects of Na Ion Concentration

    Yang Huan , Hwang Jinkwang , Wang Yushen , Matsumoto Kazuhiko , Hagiwara Rika

    … A hybrid inorganic–organic ionic liquid based on sodium bis(fluorosulfonyl)amide (Na[FSA]) and [N-ethyl-N-methylpyrrolidinium] [FSA] ([C₂C₁pyrr][FSA]) is investigated as an electrolyte for sodium secondary battery operation over an extended temperature and Na⁺ ion fraction ranges. … The viscosity and molar ionic conductivity are consistent with the fractional Walden rule, and the temperature dependence of these quantities obeys the Vogel–Tammann–Fulcher equation. …

    Journal of Physical Chemistry C (123), 22018-22026, 2019-09-12


  • High-frequency shear viscosity and ionic mobility of solutions of polyethylene glycol in ionic liquids

    Yamaguchi Tsuyoshi , Kikuzawa Takujiro

    … The frequency-dependent complex shear viscosity of the solutions of polyethylene glycol (PEG) in various ionic liquids is measured in the frequency range of 5–205 MHz, and the ionic mobility of the corresponding solutions was also determined. … The plateau viscosity in the MHz regime increases on the addition of PEG, and the relaxation in the 100 MHz regime is retarded simultaneously. …

    Journal of Molecular Liquids (284), 252-257, 2019-06-15


  • Characteristics of plasma flow profiles in a super-X-divertor-like configuration

    坂本 瑞樹 , 江角 直道 , Satoshi Togo , Tomonori Takizuka , Dirk Reiser , Mizuki SAKAMOTO , Yuichi Ogawa , Naomichi EZUMI , Kenzo Ibano , Kunpei Nojiri , Yue Li , Yousuke Nakashima

    … Plasma flow patterns in a super-X-divertor-like configuration are investigated by using a one-dimensional plasma fluid model with the anisotropic-ion pressure (AIP model). … The AIP model enables to treat supersonic plasma flows self-consistently by describing the parallel plasma momentum transport with a hyperbolic equation keeping the finite effect of the parallel viscosity. …

    Nuclear Materials and Energy (19), 149-154, 2019-05



    栗原 俊輔

    … Expression of laf genes is triggered by increases in viscosity. …

    法政大学大学院紀要. 理工学・工学研究科編 (60), 1-2, 2019-03-31

    IR  DOI 

  • Atomic-level viscosity distribution in the hydration layer

    Umeda Kenichi , Kobayashi Kei , Minato Taketoshi , Yamada Hirofumi

    界面で流動性を失う水分子の直接可視化に成功 --原子間力顕微鏡による炭酸カルシウム表面の水和水の粘性測定--. 京都大学プレスリリース. 2019-03-29.

    Physical Review Letters 122(11), 2019-03-22


  • Ionic transport in highly concentrated lithium bis(fluorosulfonyl)amide electrolytes with keto ester solvents: structural implications for ion hopping conduction in liquid electrolytes

    Kondou Shinji , Thomas Morgan L. , Mandai Toshihiko , Ueno Kazuhide , Dokko Kaoru , Watanabe Masayoshi

    … Recent studies have suggested that a Li ion hopping or ligand- or anion-exchange mechanism is largely involved in Li ion conduction of highly concentrated liquid electrolytes. …

    Physical Chemistry Chemical Physics (21), 5097-5105, 2019-03-07


  • Effect of Film-Forming Additive in Ionic Liquid Electrolyte on Electrochemical Performance of Si Negative-Electrode for LIBs

    Yamaguchi Kazuki , Domi Yasuhiro , Usui Hiroyuki , Shimizu Masahiro , Morishita Shota , Yodoya Shuhei , Sakata Takuma , Sakaguchi Hiroki

    … 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide (EMI-TFSA) is one of the promising ionic liquids as electrolyte solvent to enhance the electrochemical performance of Si electrode for Li-ion batteries (LIBs) because of its low viscosity and high conductivity. …

    Journal of the Electrochemical Society 166(2), A268-A276, 2019-01-28


  • Development of Surface Strengthening Agent for Paperboard Having High Penetrability  [in Japanese]

    Ainoya Taku

    <p>近年,板紙の製造において,CO<sub>2</sub>削減,省資源化など環境への配慮から段ボール原紙の薄物化(=軽量化)を指向する傾向が見られる。薄物化によって紙の強度は低下するため,紙表面に紙力増強剤を塗布して強度を補う方法は良く知られている。一般的に表面紙力増強剤は,安価な澱粉が用いられているが,紙力向上効果の低い澱粉を塗布しても目的の圧縮強度に達し難 …

    JAPAN TAPPI JOURNAL 73(11), 1088-1091, 2019


  • Fundamental Consideration about Resource Conversion by High Pressure Fluids Focusing on Hydrothermal or Ionic Liquid Processes  [in Japanese]

    HIRAGA Yuya , WATANABE Masaru

    … Additionally, development of recycling technique of positive-electrode material in lithium-ion batteries using function of organic acid in hydrothermal fields. … For ionic liquid systems, our research group have studied extraction of reaction products and viscosity reduction effect for ionic liquid solution by adding CO<sub>2</sub>. …

    The Review of High Pressure Science and Technology 29(3), 206-216, 2019


  • Improved Rheological Properties of Organophilic-Clay Suspensions by a Simple Pretreatment with a Wet Type Jet Mill

    Minase Makoto , Hayakawa Takayuki , Oya Mitsuru , Fujita Ken-ichi , Ogawa Makoto

    … Organic modification with dimethyldioctadecylammonium chloride was done by a conventional ion exchange procedure applied for aqueous suspension of the purified bentonite, which was prepared by alteration of raw bentonite by the addition of sodium carbonate and subsequent jet milling. …

    Bulletin of the Chemical Society of Japan 92(8), 1329-1334, 2019


  • Loss of Phosphate Determines the Versatility of a Spider Orb-web Glue Ball

    ZHAO Yue , MORITA Masato , SAKAMOTO Tetsuo

    … The salts found in the web have been previously suggested to play an important role in terms of viscosity, not water. … Here, we mapped the salts in different states using a homemade time-of-flight secondary ion mass spectrometer (TOF-SIMS) with a high lateral resolution. …

    Analytical Sciences 35(6), 645-649, 2019


  • Physicochemical Properties of Starches from Lotus Rhizomes Harvested in Different Months

    Honda Yuji , Yamazaki Tetsuya , Katsumi Naoya , Fujita Naoko , Matsumoto Kenji , Okazaki Masanori , Miwa Shoji

    … The peak viscosity (PV) in the Rapid Visco-Analyser analysis, and the viscosity at 65 °C (V<sub>65</sub>) in the rotational viscometer analysis were significantly lower in SEP starch (extracted from the September-harvested sample) than in the other lotus starches. … The Spearman's rank correlation coefficients of potassium ion (K) content vs. V<sub>65</sub> …

    Journal of Applied Glycoscience 66(2), 51-57, 2019



    KANEKO Yasuaki , KATO Yoshitaka , EGUCHI Kohei , SAKAI Yuya

    <p>溶液種類を変えた吸水試験により、人工海水中のイオン種がモルタルの水分浸透に与える影響に関して検討した。その結果、本検討で用いた溶液の濃度では、無機塩の溶解によるバルク中の表面張力と粘性係数の変化は水分浸透に影響せず、マイクロオーダーのチャネルでは溶液種類によって水分浸透時間に差がないことが確認された。そして、Mg<sup>2+</sup>を含む溶液ではモル …

    Cement Science and Concrete Technology 72(1), 189-196, 2019



    KOBAYASHI Mari , TAKAHASHI Keisuke , YAMANAKA Toshiro , MAKITA Hiroko

    <p>本研究では、深海底におけるセメントモルタルの流動特性や初期圧縮強さ、長期間深海底に暴露した硬化体の力学特性を測定し、水和生成物及び化学組成の分析から、深海底で圧縮強さや長さ変化等の物理的特性が変化した原因を考察した。その結果、長期間深海底で暴露したセメントモルタルの物理的特性は著しく変化し、その程度は結合材の種類によって異なることがわかった。深海底で暴露することにより、カルシウム …

    Cement Science and Concrete Technology 72(1), 247-254, 2019


  • Anion Coordination Characteristics of Ion-pair Complexes in Highly Concentrated Aqueous Lithium Bis(trifluoromethanesulfonyl)amide Electrolytes

    TSURUMURA Tatsuya , HASHIMOTO Yasushi , MORITA Masayuki , UMEBAYASHI Yasuhiro , FUJII Kenta

    … <p>We report on the structures of Li-ion complexes in salt-concentrated aqueous electrolytes based on lithium bis(trifluoromethanesulfonyl)amide (LiTFSA), particularly focusing on the anion coordination behavior of the ion-pair complexes in the high concentration region <i>c</i><sub>Li</sub> … (<3.0 mol dm<sup>−3</sup>) to exist as ion pair-free ions. …

    Analytical Sciences 35(3), 289-294, 2019


  • Systematic studies of correlations between different order flow harmonics in Pb-Pb collisions at √sNN=2.76 TeV

    ALICE Collaboration , Busch O. , Chujo T. , Esumi S. , Miake Y. , Sakai S. , ブッシュ オリバー , 中條 達也 , 江角 晋一 , 三明 康郎 , 坂井 真吾

    … The comparisons to viscous hydrodynamic models demonstrate that the different order harmonic correlations respond differently to the initial conditions and the temperature dependence of the ratio of shear viscosity to entropy density (η/s). … This might be an indication of possible viscous corrections to the equilibrium distribution at hadronic freeze-out, which might help to understand the possible contribution of bulk viscosity in the hadronic phase of the system. …

    Physical review C 97(2), 024906, 2018-02


  • The Arrhenius temperature of ionic conductivity and viscosity in ion conducting liquids  [in Japanese]

    Ikeda Masahiro , Aniya Masaru

    Meeting Abstracts of the Physical Society of Japan 73.2(0), 1075-1075, 2018


  • Development of Ionic Liquid-based Lithium-ion Batteries and their Application  [in Japanese]

    ISHIKAWA Masashi

    <p>FSIアニオンを用いたイオン液体電解液は,溶媒,添加剤を一切必要とせず,リチウムイオン電池の黒鉛質負極の充放電を可能とするが,リチウム塩を含む純粋なイオン液体系でこれを可能とする他の例は未だにほとんど知られていない。また可逆性を付与するだけでなく,高粘度にもかかわらず,負極反応,正極反応において通常電解液を凌駕する速度特性が発現する。この特異性は,厚いSEIを形成する通常電解液と …

    Oleoscience 18(4), 185-190, 2018


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