• Title/Summary/Keyword: 과학 교육과정

Search Result 3,438, Processing Time 0.032 seconds

A Investigation on the Soil-Peel Methods in Conservation Method of Historical Site (유구 보존방법론 중 토층전사에 관한 고찰)

  • Wi, Koang-Chul;Seo, Jeong-Ho
    • Journal of Conservation Science
    • /
    • v.26 no.3
    • /
    • pp.341-348
    • /
    • 2010
  • After excavation work of relics, historical site which has historically meaningful, are preserved using the various methods. There are three method in the relocation methods that are original relocation method, the remaining structure-peel method, and soil peel method. The original relocation method is restored after relocating in historical site such as residential site, iron foundry site, kiln site, old mound. The remaining structure-peel method are restored only the feature of exposed remaining structure using polymeric resin, when it is difficult to relocate the entire remaining structure. And soil-peel method is exhibited after peeling in case when soil layers such as grave of old mound, foundation of building site, sedimentary deposit layer, shell heap, and etc. Soil-peel method becomes important historical data of changes according to environment at that time, that is, flooding by storm, traces of fire and living features of that time such as heaps of shells discarded after eating shellfish and living wastes. In particular, in case of soil layer for preparing foundation sites of building by compacting in turn soils with different components such as clay soil, rough sand soil and etc, it becomes important data which can judge foundation technology of that time. It can be said to be an important data preservation method for utilizing these historical data as historical data as well as for the purpose of education, exhibitions and public relations which can be shared not only by experts but also by general public. In this paper, we present the reliable definition of soil-peel method in various preservation methods and explain the using polymer in this method. So, we will come up with the accurate index about this method that is used the eminent analysis method for soil layer.

Verification of the HACCP System in School Foodservice Operations - Focus on the Microbiological Quality of Foods in Non-Heating Process - (학교급식소의 HACCP 시스템 적합성 검증(II) -비가열조리 공정을 중심으로-)

  • 전인경;이연경
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.33 no.7
    • /
    • pp.1154-1161
    • /
    • 2004
  • The objective of this study was to evaluate microbiological Quality of HACCP application in elementary school foodservice operations. Microbiological Quality of utensils and non-heated foods such as salad was measured two times at five elementary schools in Daegu. The two experimentations differed in that after the first experimentation employees were educated and trained on HACCP based sanitation standards with a goal of improving microbiological Quality of foodservice. Microbiological Quality, time, and temperature were evaluated at three critical control points (CCPs): washing and disinfecting, personal hygiene and non-cross contamination. Micro-biological Quality was assessed using 3M petrifilm to measure total plate count and coliform group. The first experimentation showed low microbiological Quality due to cross contamination of utensils and cooking gloves; high microbiological count of the garlic, powdered red pepper, and ginger; and not thoroughly washing and disinfecting vegetables. In the second experimentation, microbiological Quality was greatly improved by washing and thoroughly disinfecting raw ingredients and utensils, and using good personal hygiene. However, microbiological Quality of seasonings was still low. Immediate corrective actions were required in one of the foodservice operations that was assessed. These results strongly suggest that foodservice operations should address non-heated food Quality. It is essential to measure microbiological Quality regularly and continually train and retrain employees on hand washing and disinfecting raw ingredients. Further studies are needed to determine whether pathogens are present in raw vegetables and seasonings.

An R&E Model between University and High School for Information & Communication Technology Major Introduction and its Case Study (정보통신 분야 전공탐색을 위한 고교-대학간 연계 R&E 모델 및 사례연구)

  • Yi, Kang;Kim, Kyung-Mi
    • Journal of KIISE
    • /
    • v.43 no.3
    • /
    • pp.336-345
    • /
    • 2016
  • Since no course is offered in the area of professional ICT(Information & Communication Technology) in the high school curriculum, high school students do not have the opportunity to learn about the ICT engineering area and the possible career paths in the field. Due to this problem, high school students are not motivated to choose ICT majors at university level, and in turn, the ICT departments are struggling to recruit qualified students. In this paper, we present an R&E (research and education) model to mitigate this problem. We also present a case study on the program following the model offered by "H" university in collaboration with a local high school. Through the program we provided high school students with design and development experiences to solve engineering problems related to the ICT area and tried to attract their attention to ICT majors. The participants of the R&E program were able to experience the systematic engineering design process, ICT tools, teamwork, and communication skills through problem solving procedures. Based on three years of observation and the survey, it was found that more than 76% of students were motivated highly by ICT and engineering majors via the program. The main contribution of the paper is that we have proposed and proved the R&E program model and applied the ICT R&E model to a program to attract qualified students to ICT majors.

Effects of Pilots' Flight Skill and Self-Esteem on Risk Taking in the Context of Social Comparison (조종사의 비행수행 능력과 자존감이 비행비교상황에서 위험행동에 미치는 영향)

  • Jang, Song-Chul;Sohn, Young-Woo
    • Science of Emotion and Sensibility
    • /
    • v.11 no.3
    • /
    • pp.365-374
    • /
    • 2008
  • Using flight simulator tasks with 48 air force cadets, this research examined the effects of pilots' flight skill and self-esteem on risk-taking behavior in the context of social comparison with their cohorts. Flight skill and self-esteem were assessed for individual cadets and three conditions of social comparison (upward-, downward-, and no-comparison) were devised. Flight simulator situations inappropriate for further approach or landing were designed to assess pilots' risk-taking behavior. Weather conditions in the simulator were inadequate to make a landing and the recommended strategy was to break off the approach and attempt a go-around. In this experiment, pilots' risk taking was measured in terms of their approach altitudes; the lower approach altitudes indicative of the higher risk-taking. Our results showed interaction effects of flight skill, self-esteem, and social comparison on risk-taking behaviors. For pilots who were either high or low in both self-esteem and flight skill, social comparison had no effect on risk-taking behavior. However, pilots with high self-esteem but low flight skill showed more risk-taking behaviors in social comparison conditions. And, pilots with low self-esteem but high flight skill showed risk-aversive behaviors in the downward-comparison condition.

  • PDF

Multi-perspective of Korean Folk Paintings (민화의 다시점을 활용한 애니메이션 표현기법 연구)

  • Kim, Do-Yeon
    • Cartoon and Animation Studies
    • /
    • s.9
    • /
    • pp.112-126
    • /
    • 2005
  • This study investigates how 'multi-perspective' can be utilized in animation. For this goal, 1 used the traditional techniques of Korean folk paintings called 'Minhwa.' Most 'Minhwa' works, employ 'multi-perspectives', instead of linear perspective of the Western tradition that has been only taught to students under the formal education system. In Minhwa parts of reality are not only stylized but also fragmented and combined within the same frame. Other common techniques of 'Minhwa' include frontal view, bird's eye view, and inverse-perspective, which are of ien combined in one single work. The purpose of this study is to develop a working principle and practically apply it to , an animation piece based on the Korean folktale of the same title. In doing so, I have proposed a way to reconstruct and revitalize the traditional art form in the age of digital technology and have concluded that 'Multi-perspective' in 'Minhwa' can be utilized in other contents such as animation.'Multi-perspective' in 'Minhwa' is a rich source that has numerous cultural applications.

  • PDF

Analysis of 39 Letters Concerned with the Late Professor Lee YK and Dr Lillehei and the Letters Were Written between Apr. 1958 and Dec. 1981 (50년 전의 편지에서 오늘의 흉부외과를 되돌아 본다 - 1958년 4월에서 1981년 12월까지 고 이영균 교수와 닥터 릴리아이와 연관된 서신 39편의 분석 -)

  • Kim, Won-Gon
    • Journal of Chest Surgery
    • /
    • v.42 no.4
    • /
    • pp.543-559
    • /
    • 2009
  • Dr Lillehei (1918$\sim$1999) pioneered cardiac surgery with his landmark operations using cross-circulation in 1954 and 1955. With his dedications to open heart surgery, he is generally considered to be the father of open heart surgery by many medical historians. Dr Lillehei expanded his contributions to cardiac surgery with training 134 cardiothoracic surgeons at the University of Minnesota Hospital and he trained an additional 20 surgeons at the Cornell Medical Center. Dr Lillehei's trainees came from all over the world and Dr YK lee (1921$\sim$1994) of Seoul National University was among them. He joined the University of Minnesota Hospital in 1957 as a part of the Minnesota project. During his stay for two years, in addition to experimental research, he learned clinical cardiac surgery as part of Dr Lillehei's team. In 1959, after returning to Korea, Dr Lee began his career as. a full-time cardiac surgeon with establishing the Division of Cardiac Surgery at Seoul National University. Hospital. Yet he encountered many difficult barriers in the process. During that time, Dr Lillehei was willing to share his experience and he provided many valuable resources for cardiac operations. With Dr Lillehei's kind help, the open heart surgery program was gradually and successfully established at Seoul National University Hospital. These two surgical titans from across the Pacific Ocean died in 1994 (Dr Lee) and 1999 (Dr Lillehei). They are gone, yet the proud Korean people have not forgotten them.

Retail Distribution Temperature and Quality Status of Fried-Frozen Korean Meat Ball Products (조리냉동 완자제품의 유통온도 및 품질 현황)

  • Yun, Sung-Hee;Yoon, Jae-Young;Lee, Su-Rae
    • Korean Journal of Food Science and Technology
    • /
    • v.28 no.4
    • /
    • pp.657-662
    • /
    • 1996
  • In order to investigate the quality status of fried-frozen Korean meat ball products during retail distribution, VBN value, TBA value, pH and metmyoglobin ratio were determined for 117 samples collected in Seoul area during the period of May to September, 1995. Most samples maintained relatively good quality, but one sample of a company showed $32.5mg%$ of VBN value and 0.65mg/kg of TBA value which indicate the early stage of spoilage. Correlation coefficient between metmyoglobin ratio and TBA value was highly significant. Samples closer to shelf-life limit tended to show higher VBN value, TBA value, metmyoglobin ratio and pH. Out of the surveyed samples, 35% were on retail shelves of temperature above $-14^{\circ}C$, while only 18% were being sold at temperature below $-18^{\circ}C$. It is concluded that prepared frozen foods should be stored at the recommended temperature of $-18^{\circ}C$.

  • PDF

Case Study on the Mitigation of Dangerous Slope Considering the Value of Geoheritage (지질유산 가치를 고려한 위험비탈면 보존 방안 사례 연구)

  • Jeong, Jun-Ho;Kim, Seung-Hyun;Park, Byung-suk;Woo, Yong-Hoon;Kang, Yun-seok;Koo, Ho-bon;Son, Moon
    • The Journal of Engineering Geology
    • /
    • v.30 no.1
    • /
    • pp.71-84
    • /
    • 2020
  • Various geological structures are found on the slope of Bangnim district in Pyeongchang, Gangwon-do, based on the Paleozoic Joseon Supergroup Limestone. The recumbent fold observed on the slope is a very rare geological structure that has not been found in Korea, and has important academic value in exploring the formation process of the Paleozoic geological structures in the Gangwon region. In this study, discussed the geological value of the geological structure observed on the slope of the road, and studied the management method of rockfall problem slopes. The state of development of recumbent folds has conservation value in geological scarcity and specificity. Preservation management measures should be prepared through the protection of slopes and measures to reduce of rockfall risks as geoheritage with an important value in geology science and education. Furthermore, it is expected to be preserved and utilized as a geopark.

A Study of Evaluation for Reforestation and Silviculture Policy in Korea (조림·육림정책에 대한 인식도 평가 연구)

  • Nam, Sunghyun;Kim, Sebin;Kwon, Kiwon;Jeon, Hyonsun
    • Journal of Korean Society of Forest Science
    • /
    • v.97 no.1
    • /
    • pp.10-21
    • /
    • 2008
  • The purpose of this study is to evaluate the fitness of policy topics and policy making process, the reasonableness of policy enforcement, the backing of public opinion and the results and effects of policy enforcement for the reforestation and silviculture policy in Korea. Most of the fitness of policy topics was evaluated positively, but the change of species of reforestation trees from a coniferous tree to broad-leaved tree was evaluated negatively. Most of the fitness of policy making process and the reasonableness of policy enforcement was evaluated positively, but the conflicts with other forest policy was evaluated negatively. And the limits of self-judgement of the responsible person needs to be extended. The backing of public opinion was evaluated positively but that of statesman was evaluated negatively. And the most of the results and effects of policy enforcement was evaluated positively but the economic contribution of the policy was evaluated negatively.

Determining Relative Weights of Criteria for Evaluating National Quarantine Station by the Analytic Hierarchy Process (AHP방법을 적용한 국립검역소 평가 준거의 가중치 결정)

  • Jeong, Mun-Yong;Lee, Moo-Sik;Kim, Dae-Kyung;Yoo, In-Sook
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.11 no.1
    • /
    • pp.335-340
    • /
    • 2010
  • In accordance with the increasing possibility that the new and reoccurring epidemics continuously appearing abroad flow into Korea, it is very important to evaluate the efficiency of quarantine management projects of National Quarantine Station. This study adopted the pairwise comparison approach using the analytical hierarchy process(AHP) that has been recognized with its scientific adequacy for allocating the weight, the relative importance of evaluation components. AHP technique is evaluated to be distinguished in measuring the impact by making hierarchy of, simplifying and systemizing the complicated multi-criteria decision making problems. The weights by evaluation indexes were 0.2 in the organization evaluation field and 0.8 in the service and program field. The quarantine business showed the highest value, 0.45, in the service and program field. The indexes were classified into the upper category (organization evaluation field, service and program evaluation field) and lower category (input/process/result/quarantine field, inspection field, hygiene management field, pathogenic organ investigation and monitoring field, epidemics prevention promotion/education field). The evaluation indexes that were finally selected were applied to the actual businesses in National Quarantine Station. Next, the minimum evaluation indexes were selected and so the evaluation system on the businesses in National Quarantine Station was more systemized.