http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
영구전치(永久前齒)의 치근발육단계(齒根發育段階)에 따른 Electric Pulp Stimulator에 대(對)한 치수반응(齒髓反應)
최재홍,Choi, Jae-Hong 대한소아치과학회 1979 大韓小兒齒科學會誌 Vol.6 No.1
The author studied the response to the stimulation of an electric pulp stimulator of healthy 854 permanent anterior teeth in 122 children aged from six to eleven years old, during different stages of tooth development. The results were as followings: 1) In completely open apices, 13.1% (18 teeth) showed positive responses, and 86.9% (120 teeth) showed negative responses. In two-thirds open apices 33.1% (75 teeth) showed positive responses, and 66.9% (152 teeth) showed negative responses. In one-third open apices 57.8% (118 teeth) showed positive responses, and 42.2% (86 teeth) showed negative responses. In closed apices 80.0% (228 teeth) showed positive responses, and 20.0% (57 teeth) showed negative responses. 2) The number of positive responses increased in each upper and lower central incisors during the stages of root development, but not in upper lateral incisors. 3) There were no significant differences statistically in responses between the teeth of the right and left sides and the upper and the lower jaw, in the same stages of root development.
최재홍,김예상,Choi, Jae-Hong,Kim, Yea-Sang 한국건설관리학회 2013 한국건설관리학회 논문집 Vol.14 No.5
최근 많은 기업들이 개개인의 인적자원을 기업 가치 창출의 핵심 자산으로 인식하고, 기업 경쟁력 강화를 위하여 역량기반의 인적자원관리 및 인재육성에 많은 노력을 기울이고 있다. 국내 건설업에서 큰 비중을 차지하고 있는 종합건설회사의 건설기술자는 건설 프로젝트 생애주기의 각 단계에서 다양한 참여주체와 함께 공사관리 업무를 수행하며, 건설기술자의 역량은 건설공사의 성패에 직접적인 영향을 미치는 중요한 요소이다. 하지만 현재 국내의 건설기술자 능력 평가 방식은 자격 위주의 평가로서 실제 공사관리 업무에 대한 소화능력과는 거리가 있다. 이와 같은 관점에서 본 연구는 건설업의 기본관리 항목 중 하나인 원가관리의 업무 프로세스 및 세부 수행항목을 분석하여 원가관리 업무 숙련도 수준을 제시하였고, 이를 바탕으로 건설기술자 직급별 요구역량 대비 현 수준 분석 및 업무 단계별 건설기술자 업무역량 분석을 실시하여 시사점을 도출하였다. Recently, many companies recognize the individual human resource as a core asset of the corporate value creation and devote a lot of effort to develop and manage competency-based human resource in order to strengthen the corporate competitiveness. As the integrated construction company taking the major portion in Korean construction industry, its construction engineers perform the construction supervision task with various related parties at each stage of the life cycle of the construction project. Therefore, the competency of a construction engineer is an important factor which have a direct impact on the success of the construction project. However, the current capability evaluation scheme of the domestic construction engineers is mainly oriented on the qualification factors such as the certificates or the seniority and this is quite different from evaluating the actual ability for construction management tasks. In this point of view, this study proposes the appropriate level of proficiency in cost management by analyzing the work process and its detailed items of the cost management that is the one of the basic management items of the construction industry. Based on this, this study analyzes the current competency level of the construction engineer by comparing with the required competency of each job position and also performs the engineer's work competency analysis of each work step.
최재홍,김성옥,강근옥,Choi, Jae-Hong,Kim, Sung-Ok,Kang, Kun-Og 동아시아식생활학회 2006 동아시아식생활학회지 Vol.16 No.5
This study surveyed the selection attributes and degree of satisfaction among Japanese restaurant customers by conducting frequency analysis on the data. Among all types of Japanese restaurants customers selected sushi bars the most (48.2%), and they considered taste (73.9%), price (34.8%), and service (22.2%) to be very important. When eating at Japanese restaurants, satisfaction differences among sanitation (p<0.05), price (p<0.05), and unique design (p<0.1) each had a significant difference with F values of 3.313, 3.208, and 2,702, respectively. factor analysis of the effect of selection attributes on Japanese restaurant performance revealed three factors; image, service, and food. Their combined satisfaction was 61.41%, and each of these three factors showed a Cronbach's ${\alpha}$ value of 0.744, 0.739, and 0.623 in the reliability analysis, respectively, thus demonstrating the overall level of reliability. Multiple regression analysis showed that increased overall satisfaction of Japanese food was related to the satisfaction levels of food and service, and not to that of surrounding satisfaction.
최재홍 ( Jae Hong Choi ),김진성 ( Jin Sung Kim ),조분성 ( Bun Sung Jo ),김정환 ( Jeung Hoan Kim ),박혜진 ( Hye Jin Park ),안봉전 ( Bong Jeun An ),김명욱 ( Myung Uk Kim ),조영제 ( Young Je Cho ) 한국식품저장유통학회(구 한국농산물저장유통학회) 2011 한국식품저장유통학회지 Vol.18 No.3
The optimum condition for phenolics contents extraction from purple sweet potato was 12 hrs. in 50% ethanol. The electron donating scavenging activities (DPPH), ABTS radical cation decolorization (ABTS) and antioxidant protection factor (PF) of Jami, Yeonjami and Shinjami were higher than general sweet potato, and thiobarbituric acid reaction substance (TBARs) was below 30%. The minimum inhibitory concentration (MIC) against Staphylococcus aureus and Escherichia coli on skin were each 5,000 and 2,500 ppm in all purple sweet potatoes, and MIC of Jami was the lowest as 2,500 ppm against Staphlococcus epidermidis. The whitening (tyrosinase inhibitory) activity of purple sweet potatoes was the highest as 62.5% and 48.7% in Jami water and ethanol extracts. The anti-inflammation (hyaluronidase inhibitory) activity of purple sweet potatoes was the highest as 25.3% and 94.4% in Jami water and ethanol extracts. The safety of cosmetic with Jami extracts was assessed by various safety profiles. pH and viscosity change of essence for 90 days was not detected. Cosmetic was stable to temperature and light for 90 days. The result to measure changes of skin color and pore size of the skin was that an aged skin was more effective than young skin.
최재홍 ( Jae Hong Choi ),임정묵 ( Joung Muk Leem ),최희복 ( Hee Bok Chae ),윤세진 ( Sei Jin Youn ),성노현 ( Ro Hyun Sung ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
〈목적〉 과민성 장 증후군의 병인에 대한 설명은 다양하며 아직 명확하지 않다. 그 중 일부의 과민성 장 증후군 환자들에서는 장관의 염증과 연관되어 생길 수 있으며, 비만세포가 과민성 장 증후군의 병인과 연관이 있다고 추측되지만 아직 그 결과가 다양하고, 아직까지 국내에서는 이에 대한 보고가 없는 상태이다. 따라서 본 연구의 목적은 비만세포가 과민성 장 증후군 환자의 대장에서 다른 대조군의 대장과 차이가 있는지를 확인해 보기 위한 것이다. 〈방법〉 생검