http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Masahiro Shibuya,Kenichi Iida,Koki Mikami,Shuichi Kamota 대한인간공학회 2007 대한인간공학회 학술대회논문집 Vol.- No.-
In order to contribute to the vitalization of the economy of Japan and its northern main island Hokkaido, we applied for “academia-industry joint projects” sponsored by the Ministry of Economy, Trade and Industry of Japan, were adopted, and developed curriculums for “Hokkaido-type training program curriculums for production management core human resources”. The completed curriculums are expected to be great use to training workers in the Hokkaido manufacturing industry to be ones with the power of KAIZEN and management. In this report are explained the characteristics of the Hokkaido-type training program for production control core human resources developed by Hokkaido Institute of Technology and Hokkaido Industrial Research Institute and its 2007 contents. The purpose is to contribute to the development of training programs of human resources for manufacturing in Korea.
Shibuya, Kazuhiko,Ohara, Naoko,Ono, Serina,Matsuzaki, Kumiko,Yoshiyama, Masahiro The Korean Academy of Conservative Dentistry 2019 Restorative Dentistry & Endodontics Vol.44 No.4
Objectives: Self-adhesive resin cements contain functional monomers that enable them to adhere to the tooth structure without a separate adhesive or etchant. One of the most stable functional monomers used for chemical bonding to calcium in hydroxyapatite is 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP). The aim of this study was to evaluate the influence of the10-MDP concentration on the bond strength and physical properties of self-adhesive resin cements. Materials and Methods: We used experimental resin cements containing 3 different concentrations of 10-MDP: 3.3 wt% (RC1), 6.6 wt% (RC2), or 9.9 wt% (RC3). The micro-tensile bond strength of each resin cement to dentin and a hybrid resin block (Estenia C&B, Kuraray Noritake Dental) was measured, and the fractured surface morphology was analyzed. Further, the flexural strength of the resin cements was measured using the three-point bending test. The water sorption and solubility of the cements following 30 days of immersion in water were measured. Results: The bond strength of RC2 was significantly higher than that of RC1. There was no significant difference between the bond strength of RC2 and that of RC3. The water sorption of RC3 was higher than that of any other cement. There were no significant differences in the three-point bending strength or water solubility among all three types of cements. Conclusions: Within the limitations of this study, it is suggested that 6.6 wt% 10-MDP showed superior properties than 3.3 wt% or 9.9 wt% 10-MDP in self-adhesive resin cement.
Kazuhiko Shibuya,Naoko Ohara,Serina Ono,Kumiko Matsuzaki,Masahiro Yoshiyama 대한치과보존학회 2019 Restorative Dentistry & Endodontics Vol.44 No.4
Objectives: Self-adhesive resin cements contain functional monomers that enable them to adhere to the tooth structure without a separate adhesive or etchant. One of the most stable functional monomers used for chemical bonding to calcium in hydroxyapatite is 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP). The aim of this study was to evaluate the influence of the10-MDP concentration on the bond strength and physical properties of self-adhesive resin cements. Materials and Methods: We used experimental resin cements containing 3 different concentrations of 10-MDP: 3.3 wt% (RC1), 6.6 wt% (RC2), or 9.9 wt% (RC3). The micro-tensile bond strength of each resin cement to dentin and a hybrid resin block (Estenia C&B, Kuraray Noritake Dental) was measured, and the fractured surface morphology was analyzed. Further, the flexural strength of the resin cements was measured using the three-point bending test. The water sorption and solubility of the cements following 30 days of immersion in water were measured. Results: The bond strength of RC2 was significantly higher than that of RC1. There was no significant difference between the bond strength of RC2 and that of RC3. The water sorption of RC3 was higher than that of any other cement. There were no significant differences in the three-point bending strength or water solubility among all three types of cements. Conclusions: Within the limitations of this study, it is suggested that 6.6 wt% 10-MDP showed superior properties than 3.3 wt% or 9.9 wt% 10-MDP in self-adhesive resin cement.