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      • KCI등재

        이사회 및 이사의 특성이 기업의 연구개발투자에 미치는 영향: 한국기업을 중심으로

        임미희,Lim, Mi-Hee 기술경영경제학회 2017 Journal of Technology Innovation Vol.25 No.2

        본 연구는 기업의 이사회 구조 및 이사의 특성이 연구개발투자에 미치는 영향을 파악하는데 목적을 두고 있다. 95개 한국 상장기업을 대상으로 실증 분석한 결과, 이사의 인구통계학적 특성이 기업의 연구개발투자에 유의미한 영향을 주는 것으로 나타나, 이사회 내 이사의 평균연령이 낮고 과학 공학 전공자와 해외학위 소지자가 많은 경우 기업의 연구 개발투자가 활발히 발생함을 알 수 있었다. 특히 이러한 영향은 사외이사 보다는 사내이사에서 더욱 크게 발생하여 사내이사를 중심으로 이루어지는 한국의 이사회 운영을 짐작하게 하였다. 또한 이사회 힘의 강화는 전체 이사의 인구통계학적 특성이 연구개발투자에 미치는 영향력을 전반적으로 강화해주기 보다는, 사내이사의 인구통계학적 특성이 미치는 영향을 약화시키는 것으로 나타났다. This paper seeks to explore the effects of the board structure and director characteristics on the R&D investment of a company. The results from analyzing 95 Korean listed companies reveal that the directors' demographic characteristics substantially affect the R&D intensity. When the directors are younger, major in science or engineering, and have an experience of studying abroad, they tend to be supportive of R&D, thereby increasing the R&D expenditure. Particularly, the effects of insider directors are shown to be greater than those of outside directors, which implies that the Korean corporate boards are mainly operated by insiders. Furthermore, when the relative power of boards is greater than the management, the effects of inside directors, rather than overall directors, on R&D intensity are weakened.

      • KCI등재

        치위생과 학생의 자기효능감 수준에 따른 스트레스 요인의 적응방법에 관한 연구

        임미희,구인영,최혜숙,Lim, Mi-Hee,Ku, In-Young,Choi, Hye-Sook 한국치위생학회 2011 한국치위생학회지 Vol.10 No.2

        Objectives : The purpose of this study was to examine the relationship of the self-efficacy of dental hygiene students to their stressors and ways of stress-adaptation patterns. Methods : The subjects in this study were dental hygiene juniors in four selected colleges located in the metropolitan area. Results : 1. They got a mean of 3.22 in self-efficacy. They gave the highest mark(3.50) to an item 'I can attain it if I set a primary goal.' 2. They got a mean of 3.18 in stressors. Among the stressors, task assignments(3.74) were identified as the greatest stressor, followed by the curriculum(3.25), learning environments(3.16), prospects of employment (3.07) and test anxiety(2.95). 3. They got a mean of 2.02 in stress-adaptation method. They got 2.31 and 1.72 in long-term and short-term adaptation respectively, which showed that long-term stress adaptation method were more prevailing than short-term ones. 4. As a result of analyzing whether there would be any gaps in self-efficacy according to general characteristics, statistically significant gaps were found in that regard according to experience of preparing for college admission after leaving high school, academic standing, satisfaction with the department of dental hygiene and prospects of employment(p<.05). 5. As a result of checking the relationship of their self-efficacy to their stressors and ways of stress adaptation method, there were statistically significant differences in that aspect according to examinations and prospect of employment(p<0.05). As for ways of stress adaptation method, there were statistically significant differences in long-term adaptation method (p<0.05). Conclusions : As it's found that the level of the self-efficacy of the dental hygiene students was linked to the efficiency of their ways of stress adaptation method, the development and implementation of programs geared toward boosting the self-efficacy of dental hygiene students are required to teach them to successfully cope with various kinds of stress that they are likely to face after getting a job.

      • KCI등재후보
      • KCI등재

        치위생과 학생의 자기효능감 수준에 따른 스트레스 요인의 적응방법에 관한 연구

        임미희 ( Mi Hee Lim ),구인영 ( In Young Ku ),최혜숙 ( Hye Sook Choi ) 한국치위생학회(구 한국치위생교육학회) 2011 한국치위생학회지 Vol.11 No.5

        Objectives: The purpose of this study was to examine the relationship of the self-efficacy of dental hygiene students to their stressors and ways of stress-adaptation patterns. Methods: The subjects in this study were dental hygiene juniors in four selected colleges located in the metropolitan area. Results: 1. They got a mean of 3.22 in self-efficacy. They gave the highest mark(3.50) to an item ``I can attain it if I set a primary goal.``2. They got a mean of 3.18 in stressors. Among the stressors, task assignments(3.74) were identified as the greatest stressor, followed by the curriculum(3.25), learning environments(3.16), prospects of employment (3.07) and test anxiety(2.95). 3. They got a mean of 2.02 in stress-adaptation method. They got 2.31 and 1.72 in long-term and short-term adaptation respectively, which showed that long-term stress adaptation method were more prevailing than short-term ones. 4. As a result of analyzing whether there would be any gaps in self-efficacy according to general characteristics, statistically significant gaps were found in that regard according to experience of preparing for college admission after leaving high school, academic standing, satisfaction with the department of dental hygiene and prospects of employment(p<.05). 5. As a result of checking the relationship of their self-efficacy to their stressors and ways of stress adaptation method, there were statistically significant differences in that aspect according to examinations and prospect of employment(p<0.05). As for ways of stress adaptation method, there were statistically significant differences in long-term adaptation method (p<0.05). Conclusions: As it`s found that the level of the self-efficacy of the dental hygiene students was linked to the efficiency of their ways of stress adaptation method, the development and implementation of programs geared toward boosting the self-efficacy of dental hygiene students are required to teach them to successfully cope with various kinds of stress that they are likely to face after getting a job. (J Korean Soc Dent Hygiene 2011;11(5):811-822)

      • KCI등재후보
      • KCI등재

        연풍대-한발 딛고 뛰며 앉았다가 발 바꿔 공중돌기 동작 시 점프구간의 운동역학적 분석

        임미희(Lim, Mi-Hee),백진호(Back, Jin-Ho) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.6

        This study suggests to provide basic data for drafting the learning plan for the non-expert through the kinematic analysis of Korean dance "Yeonpungdae One step jump and Sit down and change feet jump. The results of this study were as follows. In the time variable, it was shown that the skilled person shortened the jump time for jumping and lengthened the running time. In the distance variable, there was no significant difference between the left and right position and the posterior position in the change of the center of mass position of the skilled and unskilled persons, but the change of the vertical position was slightly higher than that of the non-expert. The center of mass velocity of the jumping movement showed that there was no difference between the front and rear axes and the left and right axes of the skilled and unskilled persons, but the skilled person was the fastest at the vertical velocity. The ankle angle, knee angle, and hip angle were significantly higher in the junior than in the non-expert. Comparing the angle of the upper body when sitting for the jump, the expert showed that the upper body was kept straight and the posture was taken to improve the stability of the body center and the performance of the jump.

      • KCI등재

        연풍대-한발 딛고 뛰며 앉았다가 발 바꿔 공중돌기 동작의 3차원 동작분석

        임미희(Lim, Mi-Hee),백진호(Back, Jin-Ho) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.5

        This study suggests to provide basic data for drafting the learning plan for the non-expert through the kinematic analysis of Korean dance Yeonpungdae One step jump and Sit down and change feet jump. The results of this study were as follows. In the time variable, it was shown that the skilled person shortened the jump time for jumping and lengthened the running time. In the distance variable, there was no significant difference between the left and right position and the posterior position in the change of the center of mass position of the skilled and unskilled persons, but the change of the vertical position was slightly higher than that of the non-expert. The center of mass velocity of the jumping movement showed that there was no difference between the front and rear axes and the left and right axes of the skilled and unskilled persons, but the skilled person was the fastest at the vertical velocity. The ankle angle, knee angle, and hip angle were significantly higher in the junior than in the non-expert. Comparing the angle of the upper body when sitting for the jump, the expert showed that the upper body was kept straight and the posture was taken to improve the stability of the body center and the performance of the jump.

      • KCI등재

        Potassium ferrate(6)를 이용한 자연유기물질 제거

        임미희(Mi Hee Lim),김명진(Myoung Jin Kim) 大韓環境工學會 2007 대한환경공학회지 Vol.29 No.12

        본 연구에서는 산화제, 소독제, 응집제로서 동시에 작용하는 potassium ferrate(VI)를 합성하여 자연유기물질(NOM, HA와 FA)로 오염된 강물을 처리하는 실험을 수행하였다. Ferrate 주입량(2~46 mg/L as Fe)에 따른 낙동강 시료에 포함되어 있는 10 mg/L HA의 제거효율을 UV₂54로 알아본 결과, 20.7~73.6% 제거효율을 보였고 10 mg/L FA에 대해서는 52.6~77.5%의 제거효율을 보였다. 하지만 제거효율을 TOC로 분석한 결과는 HA에 대해 0~20.3%, FA에 대해 0~26.6%의 낮은 효율을 보였다. pH와 반응온도에 따른 영향을 보면, pH가 낮을수록 ferrate에 의한 NOM 제거효율이 높게 나타났고, 온도가 높을수록 HA 제거효율이 높아졌다. 응집제로서 ferrate 효과를 기존 응집제들과 비교해 본 실험에서 ferrate는 Al₂(SO₄)3ㆍ18H₂O, FeSO₄ㆍ7H₂O, FeO(OH)와 비슷한 정도의 효율을 보였다. Ferrate와 HA의 반응은 60초 이내에 완결되어 정상상태에 이르렀고 반응시간에 대해 1차 반응을 보였다. 그리고 소량의 ferrate를 주입하여 HA를 전처리한 후 기존 응집제로 처리하였을 때 ferrate로 전처리하지 않았을 때보다 효율이 향상되었다. In this research, we synthesized potassium ferrate(VI) acting as an oxidant, disinfectant, and coagulant, and used it to treat natural organic matter(NOM, HA and FA) in river water. The removal efficiencies obtained by UV₂54 ranged from 20.7 to 73.6% for 10 mg/L HA and from 52.6 to 77.5% for 10 mg/L FA in Nakdong river sample as the ferrate dose varied from 2 to 46 mg/L(as Fe). However, the removal efficiencies by TOC analysis ranged from 0 to 20.3% for HA and from 0 to 26.6% for FA at the same ferrate doses. The removal efficiencies of NOM increased either with decreasing pH or with increasing temperature. The removal efficiency of HA by ferrate was comparable to those by traditional coagulants such as Al₂(SO₄)3·18H₂O, FeSO₄·7H₂O, and FeO(OH). The reaction between ferrate and HA reached a steady state within 60 seconds, showing first-order with respect to the reaction time. The removal efficiencies of HA by traditional coagulants were improved by pretreatment of HA using a small amount of ferrate.

      • KCI등재

        건강신념모델을 적용한 치과위생사의 손씻기 수행 관련요인 분석

        임미희 ( Mi Hee Lim ) 한국치위생학회(구 한국치위생교육학회) 2013 한국치위생학회지 Vol.13 No.2

        Objectives : The purpose of this study was to examine influential factors related to hand washing practice in dental hygienists by health belief model, one of the major predictors of health behavior including perceived susceptibility, perceived seriousness, perceived benefits, perceived barriers and cues to action. Methods: The subjects were dental hygienists in dental hospitals, dental clinics, general hospitals and university hospitals in Seoul. A survey was conducted from May 1 to September 30, 2011. Results: Analysis of health belief of dental hygienists in hand washing, they revealed the highest marks of 4.39 to perceived benefits, followed by perceived susceptibility(4.29), perceived seriousness(3.94), cues to action(3.30) and perceived barriers(1.81). The mean was 4.13 in hand washing practice. The senior and well educated dental hygienists in general hospitals had a tendency to wash hands frequently. It is statistically significant(p<0.05). In regard to the correlation among the subfactors of health beliefs, susceptibility had a statistically significant positive correlation to seriousness, benefits and cues to action, and seriousness was positively correlated to benefits and cues to action. Conclusions: It is necessary to develop and implement hand washing education program for dental hygienists focusing on perceived benefits and barriers which are two of the health beliefs affecting the hand washing practice.

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