Ryoji Nakajima

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The rapid increase in the production and use of fullerene C(60) nanoparticles raise concerns about environmental risks and human health. Wastewater treatment plants are key barriers to their discharge into the environment. The aggregation behavior of aqueous suspensions of C(60) nanoparticles (nC(60)) could affect their transport, bioavailability, and(More)
There has been a great deal of work recently in the fields of teleoperation and telerobotics [5]. In these man-machine systems, a robot arm or a land vehicle are commanded to move in real-time by a human operator who is viewing the progress of the operation. The decisions on the task of moving the arm or vehicle to the desired position are made by the(More)
A method for the determination of ethanol in alcoholic beverages by high-performance liquid chromatography-flame ionization detection (HPLC-FID) was developed. An FID system could be directly connected to an HPLC system using pure water as a mobile phase. In a durability test using triacontylsilyl (C30)-silica gel stationary phase for 96 h, no significant(More)
Superheated water chromatography (SWC) with ultraviolet detection was applied to the separation of low molecular weight polyethylene glycols (PEGs). PEG oligomers could be detected sensitively when the detection wavelength was set at 190 nm. The effect of column temperature on the separation of PEG oligomers was investigated. The elution time of all PEG(More)
A method for the superheated water chromatography of phenols was developed using a poly(styrene-divinylbenzene) (PSDVB) stationary phase. The stationary phase of superheated water chromatography must be stable against the attack of water. A durability test for PSDVB packings and octadecylsilyl (ODS)-silica gels indicated that PSDVB packings were stable in(More)
Horse riding robot for health promotion and its control Shuoyu Wang a , Koichi Kawata b , Takeshi Tsuchiya c , Kenji Ishda d , Tetsuhiko Kimura e , Ryoji Nakajima f & Youichi Shinomiya g a Department of Intelligent Mechanical Systems Engineering, Kochi University of Technology, 185 Miyanokuchi Tosayamada-cho, Kami-gun, Kochi 782-8502, Japan b Department of(More)
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