Papers - IWATA Shuichi
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Three-Dimensional Numerical Analysis of the Filling Process of Milk into Paper Milk Cartons Reviewed
Kenji Matsumoto, Mitsuhiro Ohta, Shuichi Iwata
Nihon Reoroji Gakkaishi 44 ( 3 ) 159 - 166 2016.07
Language：Japanese Publishing type：Research paper (scientific journal)
Other Link： https://www.jstage.jst.go.jp/browse/rheology/44/3/_contents/-char/ja/
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Molecular Dynamics Simulation Study on CO2 Physical Absorption Reviewed International journal
Ryo Nagumo, Yukihiro Muraki, Shuichi Iwata, Hideki Mori, Hiromitsu Takaba and Hidetaka Yamada
Ind. Eng. Chem. Res. 55 8200 - 8206 2016.07
Language：English Publishing type：Research paper (scientific journal)
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The Effect of Filling Operation Conditions on the Efficiency of Production Process of Paper Carton Milk Reviewed
Kenji MATSUMOTO, Mitsuhiro OHTA and Shuichi IWATA
Kagaku Kogaku Ronbunshu 42 ( 3 ) 83 - 91 2016.05
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Society of Chemical Engineers, Japan
Other Link： https://www.jstage.jst.go.jp/browse/kakoronbunshu/-char/ja
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Measurement of Dynamic Surface Tension by Mechanically Vibrated Sessile Droplets Reviewed International coauthorship International journal
Shuichi Iwata, Satoko Yamauchi, Yumiko Yoshitake, Ryo Nagumo, Hideki Mori, and Tadashi Kajiya
Review of Scientific Instrumments 87 ( 4 ) 045106 2016.04
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：American Institute of Physics
We developed a novel method for measuring the dynamic surface tension of liquids using mechanically vibrated sessile droplets. Under continuous mechanical vibration, the shape of the deformed droplet was fitted by numerical analysis, taking into account the force balance at the drop surface and the momentum equation. The surface tension was determined by optimizing four parameters: the surface tension, the droplet’s height, the radius of the droplet-substrate contact area, and the horizontal symmetrical position of the droplet. The accuracy and repeatability of the proposed method were confirmed using drops of distilled water as well as viscous aqueous glycerol solutions. The vibration frequency had no influence on surface tension in the case of pure liquids. However, for water-soluble surfactant solutions, the dynamic surface tension gradually increased with vibration frequency, which was particularly notable for low surfactant concentrations slightly below the critical micelle concentration. This frequency dependence resulted from the competition of two mechanisms at the drop surface: local surface deformation and surfactant transport towards the newly generated surface.
DOI： 10.1063/1.4944045
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Separation Characteristics of a Modified Petlyuk Process for Ternary Separations Reviewed International coauthorship
Hideki Mori, Takanori Nishioka, Shuichi Iwata, Ryo Nagumo, Joon Man Lee
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 49 ( 2 ) 79 - 83 2016.02
Language：English Publishing type：Research paper (scientific journal)
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Molecular Dynamics Simulations for Systematic Prediction of the CO2 Solubility of Physical Absorbents Reviewed
Ryo Nagumo, Yukihiro Muraki, Masaki Taniguchi, Haruki Furukawa, Shuichi Iwata, Hideki Mori, and Hiromitsu Takaba
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 49 ( 1 ) 1 - 5 2016.01
Language：English Publishing type：Research paper (scientific journal) Publisher：The Society of Chemical Engineers, Japan
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Potential of Carboxybetaine Polymer-Coated Siliceous Membranes in Desalination Processes: A Molecular Dynamics Simulation Study Reviewed
Ryo Nagumo, Takaaki Miyake, Haruki Furukawa, Shuichi Iwata, Hideki Mori, Hiromitsu Takaba
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 48 ( 10 ) 805 - 808 2015.10
Language：English Publishing type：Research paper (scientific journal) Publisher：Society of
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Mixing of Viscoelastic Fluid with Anchor Impeller in Rotating Vessel Reviewed
Norihiro Morikawa, Shinsuke Asayama, Yoshihito Kato, Yuki Ohinata,
KAGAKU KOGAKU RONBUNSHU 41 ( 5 ) 273 - 275 2015.09
Language：Japanese Publishing type：Research paper (scientific journal)
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Experimental study on motion of bubbles in non-Newtonian fluids under pressure oscillating field Reviewed
81 ( 823 ) 14-00609 2015.03
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
DOI： 10.1299/transjsme.14-00609
Other Link： https://www.jstage.jst.go.jp/article/transjsme/81/823/81_14-00609/_article/-char/ja/
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The motion of a bubble rising through viscoelastic polymeric liquids Reviewed
81 ( 823 ) 14-00612 2015.03
Language：Japanese Publishing type：Research paper (scientific journal)
DOI： 10.1299/transjsme.14-00612
Other Link： https://www.jstage.jst.go.jp/article/transjsme/81/823/81_14-00612/_article/-char/ja/
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Experimental study of particle concentration under electric field Reviewed
81 ( 823 ) 14-00611 2015.03
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
DOI： 10.1299/transjsme.14-00611
Other Link： https://www.jstage.jst.go.jp/article/transjsme/81/823/81_14-00611/_article/-char/ja/
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The dynamic motion of single bubbles with unique shapes rising freely in hydrophobically modified alkali-soluble emulsion polymer solutions Reviewed
Mitsuhiro Ohta, Naoto Kobayashi, Yoshihiko Shigekane, Yutaka Yoshida and Shuichi Iwata
Journal of Rheology 59 ( 2 ) 303 - 316 2015.03
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.1122/1.4904911
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Numerical Analysis of Flow Dynamics of Milk in a Milk-Filling Process Reviewed
Kenji Matsumoto, Mitsuhiro Ohta and Shuichi Iwata
Kagaku Kogaku Rombunshu 41 ( 1 ) 2015.01
Language：Japanese Publishing type：Research paper (scientific journal)
Other Link： https://www.jstage.jst.go.jp/article/kakoronbunshu/41/1/41_edit_1/_pdf
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Theoretical screening of antifouling polymer repeat units by molecular dynamics simulations Reviewed
Ryo Nagumo, Shohei Terao, Takaaki Miyake, Haruki Furukawa, Shuichi Iwata, Hideki Mori1 and Hiromitsu Takaba
Polymer Journal 46 736 - 739 2014.06
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.1038/pj.2014.45
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Simulated Process Evaluation of Synthetic Natural Gas Production Based on Biomass Gasification and Potential of C02 Capture Using Membrane Separation Technology Reviewed
Ryo NAGUMO, Shuichi IWATA, and Hideki MORI
Journal of the Japan Petroleum Institute 56 ( 6 ) 395 - 400 2014.01
Language：English Publishing type：Research paper (scientific journal)
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Divalent/Monovalent Selectivities and Secondary Interactions of Multibasic Acids on Anion Exchange Resins Reviewed
Akihiro Inui, Chihiro Hama, Tomoaki Katsuragawa, Shuichi Iwata, and Akio Yuchi
Industrial & Engineering Chemistry Research 52 16880 - 16886 2013.10
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.1021/ie402117b
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Viscosity measurement of gelcasting slurry during in-situ gelation by a micro X-ray CT scan system Reviewed
Shuichi IWATA, Tomoaki KATO, Ruben L. MENCHAVEZ, Masayoshi FUJI, Hideki MORI, Yumiko Yoshitake, Yusuke YAMADA, Yasuhiro SAIKI
Ceramics International 39 ( 5 ) 5309 - 5316 2013.03
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
This paper reports the use of a micro X-ray CT scan system to measure the viscosity increase during in-situ gelation of a gelcasting slurry. Three small steel balls were dropped in the slurry at a desired time interval after the addition of the gelling agent, while being monitored by the CT scan system. It was determined that the plot of the logarithm of the calculated viscosities based on the settling velocity of the falling ball versus the gelation time can be classified into three regions with increasing slopes. The first region is designated as the idle time during which the gelcasting slurry can be further processed and cast into a mold. These condregion is the on set of gelation during which the polymer networks start to form with a gradual increase in the viscosity, whereas the third region is attributed to the increased concentration of the polymerized networks as typified by the significant increase in the slurry viscosity. Moreover, the falling ball method was found to be more sensitive to detecting the onset of gelformation in the gelcasting slurry than stress-controlled rheometric analyses.
DOI： 10.1016/j.ceramint.2012.12.034
Other Link： http://dx.doi.org/10.1016/j.ceramint.2012.12.034
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Motion of bubbles in branch flow channel filled with viscoelastic fluids under pressure-oscillating field Reviewed
Shuichi IWATA, Hideki MORI, Hikaru SHIBATA and Keisuke MURAKAMI
Journal of Chemical Engineering of Japan 45 ( 2 ) 123 - 127 2012.02
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
Other Link： http://www.scej.org/jcej/
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Stress Measurement around a Small Air Bubble by Flow Birefringence in a Pressure-Oscillating Field Reviewed
Shuichi IWATA, Sayaka OISHI, Ayumi ARITAKE, Hideki MORI and Tsutomu TAKAHASHI
KAGAKU KOGAKU RONBUNSHU 36 ( 5 ) 435 - 440 2010.09
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
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Measurement of Surface Tension and Contact Angle by Analysis of Force Balance along a Bubble/Droplet Surface Reviewed
Shuichi IWATA, Hironori SUZUKI and Hideki MORI
KAGAKU KOGAKU RONBUNSHU 36 ( 5 ) 441 - 448 2010.09
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
