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Cytochrome P450 2A6 and other human P450 enzymes in the oxidation of flavone and flavanone
Kakimoto, Kensaku,Murayama, Norie,Takenaka, Shigeo,Nagayoshi, Haruna,Lim, Young-Ran,Kim, Vitchan,Kim, Donghak,Yamazaki, Hiroshi,Komori, Masayuki,Guengerich, F. Peter,Shimada, Tsutomu Taylor & Francis 2019 Xenobiotica Vol.49 No.2
Macroscopic and microscopic mass transfer in silicon czochralski method
Kakimoto, Koichi The Korea Association of Crystal Growth 1999 韓國結晶成長學會誌 Vol.9 No.4
First topic of this paper aims to clarify how oxygen and heat transfer in silicon melt under cusp-shaped magnetic fields. We obtained asymmetric temperature distribution by using time dependent and three-dimensional calculation. Second topic is study on molecular dynamics simulation, which was carried out to estimate diffusion constants of oxygen in silicon melt.
Factors promoting and impeding precautionary evacuation behaviour
Ryuji Kakimoto,Toshio Fujimi,Mamoru Yoshida,Hwayoung Kim 서울시립대학교 도시과학연구원 2016 도시과학국제저널 Vol.20 No.2
In July 2012, 23 people in Aso area, Japan died as the result of a landslide; subsequently, 36 people on Izu Island and 74 people in Hiroshima city died after landslides in October 2013 and August 2014, respectively. In all three instances, localized torrential raining occurred in the late evening and all three local governments were hesitant to issue the recommended evacuation warning for the predicted heavy rains in each locality. These unfortunate disasters led the Kumamoto Prefecture to introduce a precautionary evacuation to Aso city and Minamiaso village, but the participation rate of precautionary evacuation has been very low. This study aims to find the factors that promote and impede precautionary evacuation behaviour. We effectuate the covariance structure analysis of preventive evacuation behaviour based on protection motivation theory. We find that the main cause promoting precautionary evacuation behaviour was fear of the natural disaster. The factors impeding precautionary evacuation behaviour were predominantly psychological aspects such as the annoyance and hassle of moving to a shelter or staying at a shelter with others.
Local Hazard Mitigation Plan (LHMP) is Properly Working?: Evaluation for the LHMP of Kumamoto City
김화영,Kakimoto, Ryuji 한국방재학회 2014 한국방재학회논문집 Vol.14 No.5
A local hazard mitigation plan (LHMP) or emergency plan is one of the most effective contributions for the mitigation of future localnatural disasters. Since different regions are vulnerable to different natural disasters, each community should prepare their own planbased on their specific conditions. In Kumamoto, chronic flood damage and landslides are the most common hazards. In 2012, rapidheavy rain resulted in substantial property damage, casualties, and even fatalities. Therefore, this paper presents the comparisonresearch for Kumamoto hazard mitigation planning around 10- year time series, a longitudinal study. We used a flood mitigation plancoding protocol to better understand the Kumamoto City hazard mitigation plan. Indicators used in the study mostly focus on situationsthat the city has recently faced. Ultimately, the purpose of this research is twofold: 1) to assess the current mitigation effortsfor a local flood event through a comparison study, and 2) to improve the LHMP more practically. Eventually, through this study, itshould be possible to enable the local government of Kumamoto to help establish a community resilient to its chronic natural disasters. Specific goals include determining which parts in the LHMP should be reinforced and whether improving the community resilienceto flooding is possible.
Local Hazard Mitigation Plan (LHMP) is properly working? : Evaluation for the LHMP of Kumamoto City
KIM HWAYOUNG,KAKIMOTO Ryuji 한국방재학회 2014 한국방재학회 학술발표대회논문집 Vol.2014 No.-
A local hazard mitigation plan (LHMP) or emergency plan is one of the most effective contributions for the mitigation of future local natural disasters. Since different regions are vulnerable to different natural disasters, each community should prepare their own plan based on their specific conditions. In Kumamoto, chronic flood damage and landslides are the most common hazards. In 2012, rapid heavy rain resulted in substantial property damage, casualties, and even fatalities. Studies indicate that Japanese communities have many volunteer groups to manage natural hazards and that their average risk reception is higher than in any other country. It can be said that Japanese government policy regarding natural disasters is good. However, it is time to reconsider our approach and reconfirm our fundamental commitment of designing an LHMP. This paper presents comparison research for Kumamoto hazard mitigation planning around 10- year time series, a longitudinal study. We used a flood mitigation plan coding protocol to better understand the Kumamoto City hazard mitigation plan. Indicators used in the study mostly focus on situations that the city has recently faced. Ultimately, the purpose of this research is twofold: 1) to assess the current mitigation efforts for a local flood event through a comparison study, and 2) to improve the LHMP more practically. To increase credibility and reliability, each researcher in this project checked the LHMPs three times. Eventually, through this study, it should be possible to enable the local government of Kumamoto to help establish a community resilient to its chronic natural disasters. Specific goals include determining which parts in the LHMP should be reinforced and whether improving the community resilience to flooding is possible
Hayakawa Teruaki,Kouketsu Takayuki,Kakimoto Masa-alki,Yokoyama Hideaki,Horiuchi Shin The Polymer Society of Korea 2006 Macromolecular Research Vol.14 No.1
A novel fabrication of the patterned surfaces in the polymer films was demonstrated by using the self-organizing character of the block copolymers of polystyrene-b-oligothiophenes and polystyrene-b-aromatic amide dendron. Hexagonally arranged open pores with a micrometer-size were spontaneously formed by casting the polymer solutions under a moist air flow. The amphiphilic character of the block copolymers played the crucial role as a surfactant to stabilize the inverse emulsion of water in the organic solvent, and subsequently the aggregated structure of the hydrophilic oligothiophene or aromatic amide dendron segments remained on the interiors of the micropores. The chemical composition on the top of the surface of the microporous films was characterized by energy-filtering transmission electron microscopy (EFTEM) or a time-of-flight secondary ion mass spectrometer (ToF-SIMS). The characterizations clearly indicated that the patterned surfaces in the self-organized block copolymer films with the hexagonally ordered microporous structures were fabricated in a single step.
박연정,홍정훈,박희옥,Kakimoto Naoya,김성택 대한안면통증∙구강내과학회 2023 Journal of Oral Medicine and Pain Vol.48 No.1
Purpose: To determine the effects of botulinum toxin (BoNT) injection into the human masseter muscle on the morphology of the mandibular condyle bone using cone-beam computed tomography (CBCT). Methods: Twenty volunteers were randomly assigned to one of two groups. Group I received a single BoNT injection; Group II received two injections, with the second being administered 4 months after the first. CBCT scans of both temporomandibular joints (TMJs) were performed before and 6 months after the first injection. Bony changes in the cortical layers of the condyle heads were evaluated and the long and short axes of both mandibular condyles were measured. The thickness at the thinnest part of glenoid fossa was also quantitatively measured. Results: There was no significant difference between pre- and post-injection CBCT images. Furthermore, no changes in the cortical layers of the condyle heads were observed among the subjects who exhibited mild degenerative TMJ changes. The quantitative measurements (long axis, short axis, and the thickness of thinnest part of glenoid fossa roof) did not differ significantly between pre- and post-injection except for the long axis in Group I. Conclusions: Within the limitations of this study, it appears that BoNT injections into human masseter muscles do not alter the morphology of the mandibular condyle bone in healthy adults.