• International Journal of Precision Engineering and Manufacturing
• /
• 제4권5호
• /
• pp.22-26
• /
• 2003

In this work, a new non-photolithographic micro-fabrication technique is presented. The motivation of this work is to overcome the demerits of the most commonly used photolithographic techniques. The micro-fabrication technique presented in this work is a two-step process which consists of mechanical scribing followed by chemical etching. This method has many advantages over other micro-fabrication techniques since it is simple, cost-effective, rapid, and flexible. Also, the technique can be used to obtain a metal structure which has sub-micrometer width patterns. In this paper, the concept of this method and its application to microsystem technology are described.

• 한국정밀공학회지
• /
• 제19권11호
• /
• pp.228-233
• /
• 2002

In this work, a new non-photolithographic micro-fabrication technique is presented. The motivation of this work is to overcome the demerits of the most commonly used photolithographic techniques. The micro-fabrication technique presented in this work is a two-step process which consists of mechanical scribing followed by chemical etching. This method has many advantages over other micro-fabrication techniques since it is simple, cost-effective, rapid, and flexible. Also, the technique can be used to obtain a metal structure which has sub-micrometer width patterns. In this paper, the concept of this method and its application to microsystem technology are described.

• 치위생과학회지
• /
• 제5권4호
• /
• pp.239-244
• /
• 2005

본 연구는 치위생과 학생들의 직업관을 알아보기 위해 경기지역에 위치한 3개 대학 치위생과 학생 465명을 대상으로 설문조사 하였으며, SPSSWIN 12.0을 이용하여 분석한 결과 다음과 같은 결론을 얻었다. 1. 직업관 유형 중 보수와 명성 지향적 직업관이 4.18점으로 가장 높게 나타났고 세부적 항목 중에서는 경제적 보상이 4.42점으로 가장 높게 나타났다. 2. 세부적 직업관의 유형 중 성취와 능력, 경제적 보상과 지위, 인정과 지위에 있어 특히 높은 유의한 순 상관관계를 보였다. 3. 일반적 특성에 따른 차이에 있어서 자아실현 지향적 직업관에 있어서는 치위생과 선택동기(P = .042)가, 기여 지향적 직업관에 있어서는 학교(P = .011), 학년(P = .023), 치과위생사 유무(P = .045), 치위생과 선택동기(P = .023)가 보수와 명성 지향적 직업관에 있어서는 학교(P = .000), 학년(P = .000)에서 통계적으로 유의한 차이를 나타냈다.

• 대한안전경영과학회지
• /
• 제15권2호
• /
• pp.143-149
• /
• 2013

Recently in the construction business construction companies has been ordered to survive in the terriblly competitive environment. Aa a result, most of the project with low-priced contract needs a speedy progress during all construction period. For the last five years major incident frequently occurs and results in the death of 189 workers at major top 6 construction builders. In most recent 10 years, the cause of major incidents happened in construction company is the speedy construction work that is affecting on the safety management. To prevent these accidents in the speedy construction work, four factors were chosed and analysed such as the personnel/organization, the working budget, the subcontractor selection and the employee motivation. The head office taked the support plan and tested it at the pilot work site. It showed a reduced accident and the harmful factors can be eliminated. It should be able to apply to the field to secure safety and prevent accidents.

• Safety and Health at Work
• /
• 제8권1호
• /
• pp.89-93
• /
• 2017

Background: Rates of overweight and obese Australians are high and continue to rise, putting a large proportion of the population at risk of chronic illness. Examining characteristics associated with preference for a work-based weight-loss program will enable employers to better target programs to increase enrolment and benefit employees' health and fitness for work. Methods: A cross-sectional survey was undertaken at two Australian mining sites. The survey collected information on employee demographics, health characteristics, work characteristics, stages of behavior change, and preference for workplace assistance with reaching a healthy weight. Results: A total of 897 employees participated; 73.7% were male, and 68% had a body mass index in the overweight or obese range. Employees at risk of developing obesity-related chronic illnesses (based on high body mass index) were more likely to report preference for weight management assistance than lower risk employees. This indicates that, even in the absence of workplace promotion for weight management, some at risk employees want workplace assistance. Employees who were not aware of a need to change their current nutrition or physical activity behaviors were less likely to seek assistance. This indicates that practitioners need to communicate the negative effects of excess weight and promote the benefits of a healthy lifestyle to increase the likelihood of weight management. Conclusion: Weight management programs should provide information, motivation. and trouble-shooting assistance to meet the needs of at-risk mining employees, including those who are attempting to change and maintain behaviors to achieve a healthy weight and be suitably fit for work.

• Safety and Health at Work
• /
• 제1권1호
• /
• pp.1-10
• /
• 2010

The Finnish risk assessment practice is based on the Occupational Safety and Health (OSH) Act aiming to improve working conditions in order maintain the employees' work ability, and to prevent occupational accidents and diseases. In practice there are hundreds of risk assessment methods in use. A simple method is used in small and medium sized enterprises and more complex risk evaluation methods in larger work places. Does the risk management function in the work places in Finland? According to our experience something more is needed. That is, understanding of common and company related benefits of risk management. The wider conclusion is that commitment for risk assessment in Finland is high enough. However, in those enterprises where OSH management was at an acceptable level or above it, there were also more varied and more successfully accomplished actions to remove or reduce the risks than in enterprises, where OSH management was in lower level. In risk assessment it is important to process active technical prevention and exact communication, increase work place attraction and increase job satisfaction and motivation. Investments in OSH are also good business. Low absenteeism due to illness or accidents increases directly the production results by improved quality and quantity of the product. In general Finnish studies have consistently shown that the return of an invested euro is three to seven-old. In national level, according to our calculations the savings could be even 20% of our gross national product.

• 한국심리학회지:학교
• /
• 제11권1호
• /
• pp.253-274
• /
• 2014

본 연구는 자기결정성 동기 유형 중 무동기, 외적동기, 내적동기 변화의 잠재프로파일에 따라 집단을 분류하고, 각 집단을 결정하는 영향요인을 확인하고자 하였다. 이를 위해, 한국교육종단연구(Korea Education Longitudinal Study, KELS) 패널자료를 활용하여 중2와 고2 두 시점 모두에서 자기결정성 동기 설문에 응답한 5,459명을 대상으로 자료를 수집하였다. 동기유형의 변화량을 알아보기 위해 SPSS 17.0을 이용하여 표준화된 잔차를 산출하였고, M-Plus를 사용하여 잠재프로파일분석(Latent Profile Analysis: LPA)으로 동기 변화량의 프로파일에 따른 잠재계층을 분류하였다. 분석결과, 동기변화의 잠재프로파일에 따라 분류된 집단은 '자기결정성 증가, 자기결정성유지, 자기결정성 발달 정체, 자기결정성 혼돈, 자기결정성 감소' 집단으로 총 다섯 가지 집단으로 나타났다. 또한, 다섯 개 집단의 특성을 알아본 결과, 부모의 통제.학업적 자기개념, 교사-학생관계, 시험불안, 회피 지향, 성별, 부 학력, 소득의 영향력이 각 집단의 특성을 설명할 수 있는 영향요인으로 확인되었다. 마지막으로, 본 연구의 결과들을 바탕으로 하여 청소년 상담 개입전략에 대한 함의와 본 연구의 제한점 및 후속연구에 대한 제안 등을 논의하였다.

• 한국치위생학회지
• /
• 제9권2호
• /
• pp.147-163
• /
• 2009

This study was attempted in order to look into 'Assist work' as to Implant system which dental hygienists perform in a clinical field. Subjects of this research were 362 dental hygienists who work at general hospital, University hospital, dental hospital, and dental clinics located in Seoul, Kyeong-gi, In-chon, and Jeon-buk area. As to research tool, we produced questionnaire which was comprised of the total 25 items regarding 3 of general features (age, career of dental hygienist, and personality), 6 of implant system assist work, 3 of Informed consent before surgery, 6 of preoperative preparation and maintenance related business, and 7 items related to postoperative maintenance. By using SPSS program, collected data was analyzed. Results of analysis in this study were as follow; 1. As to implant related education, dental hygienists' experience of education was high as 77.7%, and the people who is needed more education was 86.3%. Consequently, dental hygienists' concern about the implant related education was very high. 2. It was observed that most of informed consent making approvement by announcement to the surgical operation was made by dental hygienist before implant as 95%. 3. Over 80% of dental hygienists performed acquisition of cleanliness technology, motivation, back up articles preparation, treatment area arrangement, and etc. which we can check by preoperative maintenance items. In particular, response about the motivation was very high as more than 90%. 4. When performing an operation, in the case of disinfecting finger was low for 53.9% and the method was mainly washing with drug solution, and gown sterilization was performed only in 52.2%. Therefore education regarding disinfection was urgently needed. 5. Significance of education could be known that answers of hygienists experienced education appeared highly in items of maintenance method and there was statistically significant difference(p<0.05). 6. In case that assist work were 21cases or greater, agitation measurement was the most many performed in 68.9% and difference was showed up significantly(p<0.001). 7. Evaluation about periodontal tissue was high in dental hygienists who had experienced education and also there was statistically significant difference. In conclusion, assist work of dental hygienists was very comprehensive when implant surgery was performed, and all of items excluding hand disinfection or gown disinfection were highly showed up in most of hygienists. However, since there is the limit that we didn't investigate the quality of performing contents. It is considered that further study regarding the content has to be progressed for supporting this result in the future.

• 한국과학교육학회지
• /
• 제33권6호
• /
• pp.1154-1169
• /
• 2013

이 연구의 목적은 관찰 상황에서 초등학생들의 과학학습 동기체계(SL-BIS/BAS;과학학습 행동억제체계/행동활성화체계)에 따른 행동 특성을 알아보고자 하는 것이다. 이를 위해 신경생리학적 연구 방법 중 하나인 시선추적장치(Eye-Tracker)를 이용한 연구를 하였다. 이 연구의 결과는 다음과 같다. 첫째, SL-BIS에 민감한 학생의 경우 관찰 과제에 대한 총 시선고정 지속시간이 SL-BAS에 민감한 학생보다 유의미하게 짧았으며(p<.05), SL-BIS에 민감한 학생은 관찰과제에 대한 새로운 시선고정이 더 빈번하게 일어나면서 총 시선고정 횟수가 SL-BAS에 민감한 학생보다 유의미하게 많았다. 또한, 시선고정 당 지속시간은 SL-BIS에 민감한 학생보다 SL-BAS에 민감한 학생이 유의미하게 더 길었다. 둘째, 학습과제에서 주의를 이끄는 자극 중 하나인 변화 상황별 시선고정의 분포의 경우, 변화가 일어나는 상황에서는 SL-BIS에 민감한 학생과 SL-BAS에 민감한 학생 사이의 시선고정에서 큰 차이가 나타나지 않았지만, 변화가 멈춘 상황에서는 SL-BIS에 민감한 학생에 비하여 SL-BAS에 민감한 학생의 시선고정 총 지속시간과 시선고정 당 지속시간이 유의미하게 길게 나타났다. 셋째, 실험 구인별 시선고정의 대상을 비교하였을 때 SL-BIS에 민감한 학생들은 실험에 중요하게 관련되지 않는 구인에서도 시선고정을 보인 반면, SL-BAS에 민감한 학생들은 실험과 관련된 구인에 시선을 고정하며 집중하는 경향을 확인할 수 있었다. 이러한 결과는 관찰 상황에서 학생들의 과학학습 동기체계에 따른 특성에 대한 이해를 바탕으로 학습자의 특성에 적합한 지도 계획을 수립하는데 도움을 줄 수 있을 것으로 기대된다.

• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제8권3호
• /
• pp.215-226
• /
• 2004

The purpose of this paper is to introduce an activity of student who found purely linear algebraic solution of the Blackout puzzle. It shows how we can help and work with gifted students. It deals with algorithm, mathematical modeling, optimal solution and software.