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- 저자 : Fumoto, Koichiro (검색결과 6 건)
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Social Relationships and Creative Thinking in Early Childhood Practice
Hiroko Fumoto 환태평양유아교육연구학회 2012 Asia-Pacific journal of research in early childhoo Vol.6 No.2
This paper presents a conceptual analysis of young children’s creative thinking, with special reference made to their social relationships. Cultural contexts are also inextricably tied to creative thinking, although it has received less attention in creativity research. This paper seeks to fill this gap by discussing the link between social relationships and creative thinking, and some of the challenges facing creativity in Asia. It draws on the distinction Glăveanu (2010a) makes between: social relationships as external factors that create the conditions for individuals’ creative expression, and social relationships as internal factors that are part of one’s creative thinking. It also discusses the implications of his work on early childhood practice. The paper concludes that children’s creative thinking is a relational phenomenon, and its diverse nature, and the multiple ways in which it is being fostered in various early childhood practice, warrant further attention from early childhood and creativity research.
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STUDY ON NEW ICE SLURRY GENERATOR USING NaCl AQUEOUS SOLUTION AT LOW CONCENTRATION
KOJI FUMOTO,TSUYOSHI KAWANAMI,TAKAO INAMURA 대한설비공학회 2013 International Journal Of Air-Conditioning and Refr Vol.21 No.1
A cold thermal energy storage system has been developed for HVAC. There are many ice-based cooling systems operating around the world. Ice slurry, which is a mixture of ¯ne ice crystals and liquid water, is utilized in ice storage systems owing to its good °owability and large latent heat of fusion. For slurry ice production techniques, there are presently a number of commercially available ice slurry generators (e.g., Supercooled slurry ice generator, Scraper type generator, and Vacuum type generator, etc.). In the present study, a new method was developed to generate ice slurry without the deposition of an ice layer on a cooled surface. The basic components of the experimental apparatus is a cooling brine circulating loop, a high pressure pump, a valve, an aqueous solution °ow loop containing the test section, which is made of transparent acrylic, and the associated instrumentation. This new method is based on freezing-point depression of the aqueous solution, which is maintained under high-pressure conditions. To control the timing for solidi¯cation and to generate ice slurry, we investigated the relationships among the pressure and temperature of the aqueous solution. The freezing phenomenon of the aqueous solution in the test section was observed in detail. As a result, we developed a new ice slurry generator based on the new method that controls the pressure and temperature of the aqueous solution. Experimental results showed that the characteristics of the ice slurry generation were closely related to the pressure and initial stage temperature of the test °uid. Finally, the optimum operation condition of the ice slurry generator based on visualization experiment was discussed.
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An estimation of static aerodynamic forces of box girders using computational fluid dynamics
Watanabe, Shigeru,Inoue, Hiroo,Fumoto, Koichiro Techno-Press 2004 Wind and Structures, An International Journal (WAS Vol.7 No.1
This study has focused on aerodynamics for a wind-resistance design about the single and tandem box girder sections to realize a super-long span bridge in the near future. Three-dimensional static analysis of flows around the fundamental single and tandem box girder sections with fairing is carried out by means of the IBTD/FS finite element technique with LES turbulence model. As the results of the analysis, computations have verified aerodynamic characteristics of both sections by the histories of aerodynamic forces, the separation and reattachment flow patterns and the surface pressure distributions. The relationship between the section shapes and the aerodynamic characteristics is also investigated in both sections. And the mechanism about the generation of fluctuating aerodynamic forces is discussed.
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Effect of Royal Jelly on Mouse Isolated Ileum and Gastrointestinal Motility
Shino Miyauchi-Wakuda,Satomi Kagota,Kana Maruyama-Fumoto,Hirokazu Wakuda,Shizuo Yamada,Kazumasa Shinozuka 한국식품영양과학회 2019 Journal of medicinal food Vol.22 No.8
Green tea is reported to exert beneficial effects on metabolic disorders through the regulation of lipid metabolism. On the contrary, fermented food products have been introduced to improve human health by modulating immune response and energy metabolism. To maximize health benefit, we applied fermentation processing to green tea. Fermented green tea extract (FGT) inhibited adipogenesis and lipogenesis in cultured adipocytes, whereas it augmented mRNA expression of fatty acid oxidation-related genes in differentiated myocytes. In diet-induced obese mice, FGT blunted body weight and fat mass gain by 69.7% and 56.7%, respectively. FGT also improved circulating triglyceride concentrations by 32.6%. Similar to in vitro results, FGT suppressed lipogenesis and promoted lipid catabolism in peripheral tissues. In addition, FGT administration modulated the composition of certain gut microbiota which are associated with obesity and related metabolic disorders. Among the various components of FGT, gallocatechin gallate is suggested to mediate the effect of FGT on lipid metabolism. Taken together, we propose FGT as a novel functional food to benefit human health by controlling adiposity and lipid metabolism.
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Effect of Prefilmer Edge Thickness on Spray Characteristics in Prefilming Airblast Atomizer
( Naoki Katagata ),( Toshihiro Sakaki ),( Takahiro Okabe ),( Takao Inamura ),( Koji Fumoto ),( Minori Shirota ) 한국액체미립화학회 2017 한국액체미립화학회 학술강연회 논문집 Vol.2017 No.-
A prefilming airblast atomizer is a fuel injector used in aircraft gas turbines. The atomization mechanism of the atomizer is well known. After injection, the liquid homogeneously wets the prefilmer surface, and flows down to the prefilmer edge in the form of a liquid film that is sheared by the high-speed air stream. The accumulated liquid at the prefilmer edge is sheared by the air and disintegrated into the bag-shaped liquid framed by a thicker rim. The bag-shaped part of the structure bursts into fine droplets. The rim is stretched and fragments into two elongated ligaments that disintegrate into larger droplets than those generated by bag-shaped disintegration. We focused on the effect of the prefilmer edge thickness on the breakup phenomena of the liquid film and the spray characteristics. Our previous study showed that there is a correlation between the edge thickness and the breakup length and breakup frequency. The objective of this study is to clarify the effect of the prefilmer edge thickness on the spray characteristics such as the Sauter mean diameter (SMD) and the spray generation frequency. The SMD at three prefilmer edge thicknesses (160, 500, and 2000 ㎛) under various conditions were observed using a high-speed camera and an image processing technique. The measurement position from the prefilmer edge was widely varied. The fast Fourier transformation (FFT) analysis was also conducted to evaluate the periodicity of the SMD. The experimental results showed that the SMD increases as the prefilmer edge becomes thicker. In the wake region of the edge, the FFT analysis showed that the increase in prefilmer edge thickness causes the transition of the maximal power spectrum to a lower frequency (i.e. less than 100Hz) due to the larger volume of a liquid accumulation attaching to the edge.
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