• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1996.10a
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• pp.124-129
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• 1996

잔향실의 내부 음장을 해석한 결과 다음과 같은 결론을 얻을 수 있었다. 1) 벽면의 흡음률이 동일한 경우는 음향 임피던스의 실수항과 허수항의 변화, 즉 위상의 변화에 따른 음장의 변화가 없다. 2) 5각 형태의 잔향실은 벽면의 흡음률 변화에 따른 음장의 변화가 없다. 3) 4각 형태의 잔향실은 5각 형태의 잔향실보다는 음장이 불균일하며 벽면의 흡음률이 증가함에 따라 음압레벨이 표준편차가 커진다.

• 베이커리
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• no.5 s.454
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• pp.172-172
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• 2006

(사)대한제과협회는 지난 3월 24일 세미나실 오픈 기념식을 갖고 지난 2004년 건립한 중앙회관의 '기능화'를 명실공이 선포했다. 중앙회는 이번 세미나실 구축을 발판으로 소규모 자영제과점의 경쟁력 강화를 위한 기술 및 경영 · 마케팅 기법을 개발하는 사업에 최선을 다할 계획이다.

• 프린팅코리아
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• v.11 no.12
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• pp.62-67
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• 2012

인쇄업계의 불황이 깊어지고 있는 가운데 중소기업을 육성해야 할 지방자치단체들이 발간실을 운영하며 인쇄인의 영역을 침범하고 있다. 지방자치단체의 발간실 문제가 최근에 불거진 것은 아니지만 중소기업의 상생발전이라는 사회적 이슈와 맞물리며 뜨거운 감자로 떠오르고 있다. 이에 지방자치단체 발간실 현황과 문제점에 대해 알아본다.

• 대한공업교육학회지
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• v.37 no.1
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• pp.165-182
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• 2012

The purpose of this study was to develop practical arts' lesson plan for creativity and personality. In order to achieve the objectives of the study creativity and personality factor were derived on the basis of previous research and literature review and expert groups to develop lesson plan through the modification of the validity assessment. This study was conducted in three phases: preparation, development, and improvement. In the preparation phase, educational needs of teachers were developed and analyzed. And theme for activity was selected. In the development phase, activity were selected based on the contents of practical arts and presentation of educational objective, development of lesson plan. In the improvement phase, the lesson plan was completed through the modification of the validity assessment by expert group. The characteristics of the developed lesson plan were followings; First, Developed lesson were based on the contents of practical arts for creativity and personality Second, Developed lesson were designed for project method. Third, this developed lesson plan is made up of six parts 'Study cook', 'Cooking lunchbox for health', 'Cooking fusion food', 'Sowing and growing sprouts', 'Cooking with growing sprout', 'Food for life exhibition'. Forth, developed lesson plan can use practical arts class and creative activity class.

• Journal of the Korean Applied Science and Technology
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• v.35 no.2
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• pp.357-366
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• 2018

In this study, if the set temperature of the refrigerator differs from the set temperature of the refrigerator, the temperature distribution of food in the refrigerator is estimated by measuring the temperature in the refrigerator and in the refrigerator room. In addition, based on the set temperature of the refrigerator and the freezer, the temperature range of the heat is large and the time required to recover to the set temperature is to be determined. And the optimal setting temperature for home refrigerators is to be shown by measuring the amount of power consumed to recover to the set temperature. As a result, the conditions in which the temperature in the freezer realized $-18^{\circ}C$ were only appropriate in case 3, Case 6, Case 8, and Case 9 when the set temperature in the refrigerator was lower than that in the freezer. Under these conditions, the minimum temperature in the refrigerator was $-1.1^{\circ}C$, Case 6 was $-1.5^{\circ}C$, Case 8 was $-1.1^{\circ}C$ and Case 9 was $-0.8^{\circ}C$, respectively. Also, the total power consumption during the 10 hours operation time of each case was greater than the setting temperature of the freezer and the refrigerator except case 4, since case 4 started operation around 13:30 in the morning.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.36 no.1
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• pp.45-53
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• 2000

To analyze the photodegradation mechanism of materials for fisheries facilities which stand for considerable time immediately under or even partly above the water surface, such as cage collar, cage net, stationary fishing gear, egc. after 900 hours exposure, weathering experiments on 3 kinds of netting twines like dyed polyethylene(PE) and nylon, and non-treated high strength PE(Hi-PE) were carried out by using xenon light source. The results obtained are as follows : It was observed by scanning electron micrograph(SEM) that a good protection by pigments was obtained in PE and nylon specimen, while crack was rapidly progressed at the surface of Hi-PE one owing to etching by UVR. There was a little increase in density resulting from reorientation of polymer chain, chain scission, etc. in Hi-PE specimen. A wide angle X-ray diffraction showed that 3 kinds of specimens had no fundamental changes in polymer crystalline structure considering each 2$\theta$ of diffraction peak. Remaining tenacity of netting twines was in order of PE, nylon, and Hi-PE after having been exposed to the effect of 900 hours. PE and nylon treated with stuffs were shown to be more resilient than non-treated Hi-PE as confirmed by SEM.

• Journal of Korean Home Economics Education Association
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• v.15 no.1
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• pp.15-32
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• 2003

This study examined teacher perception of the instructional method. activities and material in terms of class quality enhancement. Also this study established instructional method. activities and material application Per 7th Practical Arts Education Course guidance domain. and type identification of the instructional method and activities unique to the Practical arts curriculum. Conclusions : 1. Teachers consider the instructional method and material beneficial. However in the item relevant to application of diverse instructional methods Per specific teaching objective and educational content in the actual classroom. the highest percentage responding. ‘relatively yes’ (39.7%) . balanced out with those answering. ‘no’(37.7%) 2. In linking the instructional method and material to secondary school home economics education, teachers experienced difficulty in teaching only the clothing education domain . 3. In each guidance domain, lecture method, problem-solving learning. cooperative learning. home project learning and functional learning were surveyed for instructional method suitability. Notably, home project learning was identified as a significant instructional method. This result begs in-dept analysis as home project learning may be utilized as a tool to compensate for the absence of practical educational objective condition fulfillment and to substitute for teachers unable to Provide such functional guidance in class. 4. In each guidance domain. role-playing. debate/discussion. case study research, practical exercise and activity reporting were rated as essential teaching ㆍ learning activities. 5. In each guidance domain.‘VCR’, ‘CD-ROM’ and ‘Web media’ were identified as suitable instructional materials .

• Journal of Conservation Science
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• v.11 no.1 s.14
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• pp.52-57
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• 2002

Although a conservation laboratory is a kind of hospital for cultural assets, it is often planned on the standard of ordinary offices. In this study, things and conditions to be considered for a new conservation laboratory were discussed and suggested briefly, for the sections of architecture, electricity and lightning, air condition, fire protection, machinery and tools. As methods of creating a workspace adequate to conservation work, the method of dividing workspace on the basis of workstand and the method of placing machinery and tools on the basis of water supply and sewage systems were explained., Because a conservation laboratory varies in its duties and functions, it seems difficult that all the standards and conditions suggested in this study be fulfilled in every case. But understanding general standards and conditions and choosing ones adequate to special functions of each laboratory will be helpful to planning a new conservation laboratory.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.231-234
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• 2009

일반적으로 사용자의 작업과 관련 있는 적절한 정보 또는 서비스를 제공하는 과정에서 '상황'을 사용하는 경우 이를 상황인식 시스템으로 정의한다. 상황인식 컴퓨팅 기술이 내장된 기기나 컴퓨터는 상황을 감지하여 적절하고 유용한 서비스를 제공하는 능력을 갖게 된다. 이러한 기술은 교육, 의료, 사무실 환경 등 다양한 분야에 걸쳐 활용된다. 특히 현대화된 강의실 환경은 각종 매체의 설치로 인해 전력소모가 심해지며, 매체들과 강의 환경의 효율적인 관리가 어려워지는 문제를 발생시키므로 상황인식 컴퓨팅 기술이 적용될 필요가 있다. 본 논문에서는 상황인식 기술을 이용한 강의실 관리 시스템을 제안한다. 이 관리 시스템은 다양한 센서 (온도, 조도, $CO_2$, 인체감지) 로부터 획득되는 저수준의 데이터를 사용자가 식별할 수 있는 추상화된 고수준의 정보로 변환하여 사용자에게 알려준다. 이 시스템을 구축함으로써 관리자는 강의실 내부에 설치된 매체들과 환경요소에 대한 상황을 쉽게 인식 할 수 있고, 강의실 내부의 상황변화에 대해 능동적으로 관리 할 수 있게 된다. 또한 강의실에 대한 과거의 이력정보를 검색 할 수 있음으로써 사전관리가 가능해짐에 따라 수동적인 관리로 인한 전력소비에 비해 전력절감 효과가 있고 쾌적한 강의실 환경을 학생들에게 제공 해 줄 수 있게 된다.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.291-298
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• 2013

This study is a cross-sectional descriptive survey done to identify the relationship between job stress and fatigue in operating room nurses. Data were collected by surveying 124 operating room nurses who were working in operating rooms at two advanced general hospitals and five general hospitals in G city in the province of C, and the survey was conducted by questionnaires. The data were analyzed by descriptive statistics, t-test, ANOVA, and Pearson's correlation coefficient. The level of job stress and fatigue were 3.64(0.45), and 3.46(0.60). In case of job stress in operating room nurses, there was statistically meaningful difference according to hospital type, and their fatigue levels showed statistically meaningful difference according to types of hospital, work motivation, and subjective health condition. There was positive correlation(r=0.47, p=<.001) between operating room nurses' job stress and fatigue. Therefore, this study has significance in the respect that it identified the relationship of job stress and fatigue in operating room nurses, and it will be used as the basis to develop job stress intervention program for operating room nurses.