• 항공우주기술
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• 제4권2호
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• pp.117-125
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• 2005

관성항법유도장치는 관성센서 출력에 대한 측정 정밀도를 향상시키기 위해 자이로 및 가속도계의 아날로그 출력을 주파수로 변환해주는 AF(Analog to Frequency) 변환기를 사용한다. AF 변환기 측정 신뢰성을 보장하기 위해서는 신중한 교정절차가 결정되어야 하며, 교정절차에 의한 교정시험은 주기적으로 수행되어야 한다. 본 논문에서는 양ㆍ음의 입력에 대해 각각 양ㆍ음 리셋전류를 갖는 synchronous charge balance type의 AF 변환기 교정방법에 대해 다루었다. AF 변환기 교정은 AF 변환기 환산계수 오차 교정 시험과 바이어스 교정시험으로 나누어 수행되었으며, 교정 시험용 프로그램에 의해 자동으로 수행되었다.

• 대기
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• 제24권3호
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• pp.419-432
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• 2014

An assessment of typhoon intensity predictability of numerical models was conducted to develop the typhoon intensity forecast guidance comparing with the RSMC-Tokyo best track data. Root mean square error, box plot analysis and time series of wind speed comparison were performed to evaluate the each model error level. One of noticeable fact is that all models have a trend of error increase as typhoon becomes stronger and the Global Forecast System showed the best performance among the models. In the detailed analysis in two typhoon cases [Danas (1324) and Haiyan (1330)], GFS showed good performance in maximum wind speed and intensity trend in the best track, however it could not simulate well the rapid intensity increasing period. On the other hand, ECMWF and Hurricane-WRF overestimated the typhoon intensity but simulated track trend well.

• 대한물리치료과학회지
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• 제2권2호
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• pp.509-515
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• 1995

The purpose of this study was to assess the rural women's general status in relation with low back pain. This survey was done after teaching them the prevention and treatment of low back pain with Meckenzie Method. 84 rural resident women including rural life guidance. The results were as follows. 1. The average age of rural were $35{\sim}50$ years old and the guidance's age were $21{\sim}25$ years old. The educational level of rural women were highest in primary school(46.67 %) and the home extension worker were college education(83.67 %). 2. 75 % of rural woman complained low back pain while 17.33 % of the home extension worker had back pain. 3. The home extension worker feel the necessity of the education in low back pain(100 %) while 88.89 % of the rural woman agreed. 4. All the rural women and the home extension worker had the concept of back pain and its prevention(100 %). 5. After this education, the confidence in prevention and treatment were each 78.79 % with rural women and 91.84 % with home extension worker. 6. The necessity for the treatment of low back pain were : first, the correction of posture, second, the activity posture correction, third, the supportive roll of back curve. 7. There were no statistical significant outcome specifically.

• 한국환경과학회지
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• 제20권6호
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• pp.721-728
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• 2011

This study investigates the users' perception of the importance and performance of National Recreation Forest Service Programs quality, forest environmental education and cultural benefits, with the aim of improving the level of service quality within the programs. An Important-Performance Analysis (IPA) was performed to determine significant patterns. The IPA results showed that most users' perceived as important how well the service programs performed to meet their expectations. The enclosed study finds, for example, users' answered that three factors which were less important to them were entrance fee, size of program center or facilities and amount of information. These factors performed poorly, and the program of guidance indicates the need for improvement of these factors. In addition, the finding also suggests how recreational service programs in the future can complement and improve what they offer. These are as follows. The process of preparation and content of the program order need to be effectively established. The Program Director needs to maintain a friendly attitude and must have ongoing training on how to provide effective programs. For programs to be enjoyable and satisfying for users, the location of the programs should provide a comfortable environment. Also, detailed program guidance is required for users' convenience. It is expected that the results of this study will be useful when ameliorating and establishing the marketing strategy of the National Recreation Forest Service Programs.

• 농촌지도와개발
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• 제7권1호
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• pp.3-12
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• 2000

Agricultural extension services in Korea began in 1956, and led self sufficiency of rice through the 'Green Revolution' in 1970's, and a year around supply of green vegetables through the 'White/Vinyl Revolution' in 1980s. The developmental stages of agricultural extension services in Korea, in terms of major purposes, observed by the researcher were as follows; 1) Stage of production guidance when increase in production was directly related to increased income of farmers, 2) Stage of management guidance, when agricultural extension were not only concerned in increasing production, but also in management and marketing, and 3) Stage of improved welfare, when extension services put more emphasis on welfare of farmers in terms of quality of life, as well as increased production, management and marketing. Since late 1980s, farmers in Korea realized the fact that increased production may not lead to increased income. because of this, farmers also wanted improvement of management and marketing. Extension changed the identified needs of farmers to new knowledge, information, and technology in their farm business operation including management and marketing. Loosened cooperations among the central, provincial and local levels after localization of extension services since January 1997 should be strengthened. Provincial level monitoring and supervising should be enhanced for more effective agricultural extension services to meet the changing needs of farmers in the future.

• 가정과삶의질연구
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• 제28권1호
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• pp.119-130
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• 2010

The purpose of this study is to develop and evaluate a parent-child reading interaction program. Based on the importance of the parent-child relationship and the home literacy environment vis-a-vis the extent to which reading is encouraged, and with regard to the existing empirical research in this field, a five-session parent-child reading interaction program has been developed, targeting 18 parents with children enrolled in th lower grades of elementary school. The effectiveness of this program has been evaluated by a pretest and post test and then analyzed by a paired t-test. The findings are as follows: 1) Following the implementation of this program, there were improvements in scores related to the home literacy environment, the encouragement of reading, and the attitude of the child toward reading. 2) In addition, there was an increase in the level of the mother's "rational guidance" parenting while tendencies toward overprotective and hostile parenting traits declined. The importance of the parent-child relationship and home literacy environment concerning reading guidance was discussed.

• 한국산업보건학회지
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• 제24권3호
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• pp.393-403
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• 2014

Objectives: Korean Occupational Safety and Health Agency(KOSHA) intended to provide guidance to respirator program administrators on respirator selection. The purpose of this project is to suggest a preliminary respirator selection guide(PRSG) for the final guidance certified by KOSHA for the correct selection of respirators in the workplace. Materials: This PRSG was made on the based of current status of respirator usage including respirators available in Korea, foreign documents search and so on. PRSG was partially modified NIOSH pocket guide to chemical hazards, 3M Respirator Protection Resource Guide(RPRG) and OSHA Assigned Protection Factor(APF) rulemaking. Results: Respirators for chemicals having Korean Occupational Exposure Limits(KOELs) can be recommended in PRSG. For the others chemicals that have no KOELs, PRSG tells you what respirators you can select, using a simple step-by-step approach after health hazard assessment like HSE procedure. Conclusions: PRSG helps you to decide the right level of protection for a given hazardous substance and how to select the right respirators. PRSG is thus expected to reduce significant misuses of respirators for the work environment.

• 대한공간정보학회지
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• 제18권4호
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• pp.101-107
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• 2010

본 연구의 목적은 벡터 도메인 안에 대규모 도로 선형 사상을 대상으로 실시간 데이터 변경, 관리가 가능한 네트워크의 다중 표현 데이터베이스 모델을 구축하는 것이다. 즉, 최상위 레벨의 네트워크 데이터로부터 이에 대응하는 하위 베이스 네트워크 데이터로 순차적으로 데이터 통합과 자동 매칭을 수행하는 상의하달 방식(top-down)을 기초로 하는 프레임워크를 제시하며, 이를 통해 변화 가능한 축척(variable-scale)의 지도를 생성하는 모델을 제안하였다. 구현된 MRDB(Multi-Resolution Database) 모델을 차량 항법 서비스에 적용하여 실제 동적 경로 안내 시스템에 활용 가능함을 확인할 수 있었다.

• 정보교육학회논문지
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• 제4권1호
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• pp.1-11
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• 2000

본 논문은 컴퓨터로 인한 교육매체의 변화에 의하여 새롭게 연구되어지고 있는 WBI의 교수모형을 교수설계의 원리에 의해 학습자의 개인별 특성에 맞게 학습을 습득하게 할 수 있도록 1 : 1 교육을 중점으로 하여 상업계고등학교 상업과를 예로 설계하였다. WBI를 이용한 교육은 학습자들에게 학습동기 및 성취감을 고양시켜 주었을 뿐 아니라 수준별 학습 나아가 개별화 학습을 가능하게 해주었다. 특히, 본 연구에서는 기존의 WBI와 같이 문제 제시와 학습내용 제시를 기본으로 하되, 학습자와 교사간의 상호작용이 이루어지도록 설계와 구현을 하였고, 영역별 학습 성취도를 제시하는데 초점을 두었다.

• 디지털융복합연구
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• 제11권10호
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• pp.181-187
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• 2013

본 연구는 대학생들의 진로집단상담 프로그램을 통한 진로결정효능감의 효과를 검증하여 향후 대학생들의 진로집단상담 프로그램 개발 및 대학의 진로 지도의 방향 설정의 기초가 되고자 한다. 연구방법으로는 창원시 소재 K대학교의 대학생들을 대상으로 하여 실험집단과 통제집단으로 구분하여 진로상담 프로그램의 실시 전후의 효과 검증을 실시하였다. 검증결과 우선 대학생 진로상담프로그램을 적용한 실험집단이 적용받지 않은 통제집단에 비해 진로결정효능감수준이 향상되었다. 진로결정효능감 변화량의 집단간 T-test 결과 진로결정효능감 전체에 대하여서도 유의한 차이가 있는 것으로 나타났으며 세부 요인으로서는 계획수립, 자기평가의 변화가 유의한 결과를 나타내었다.