• The Bulletin of The Korean Astronomical Society
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• v.35 no.2
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• pp.85.1-85.1
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• 2010

우리나라에서 천문올림피아드의 시작은 천문학에 대한 청소년들의 관심 제고 및 대중화 노력의 일환으로 한국천문학회 산하에 설치된 한국천문올림피아드위원회가 2001년 제 1회 천문올림피아드대회를 개최하면서부터이다. 이와 함께 2002년 제 7회 국제천문올림피아드(IAO)에 한국대표로 3명의 고등학생들을 공식적으로 처음 참가시키게 되었다. 그 후 정부가 재정지원과 더불어 고등학교와 대학 입시에서 과학올림피아드 입상자에게 가산점을 주는 정책을 시행하게 되면서, 2007년에 천문올림피아드 국내대회 응시자가 1400명을 넘어서는 한편, 국제대회(IAO)에서는 2007년과 2008년 연이어 우리 대표학생들이 종합성적 1위를 달성하는 등 천문올림피아드의 양적, 질적 발전이 있어왔다. 그러나 최근 들어 입시의 과열과 맞물려 올림피아드 준비학원의 확산 등 사교육을 유발시킨다는 비판에 직면하면서 2010년에는 천문을 포함한 모든 국내 과학올림피아드대회에서 지필시험이 폐지되는 등 대대적 개편의 과정을 겪고 있는 중이다. 국제대회 역시 2005년에 아시아-태평양 천문올림피아드(APAO)가 창설되고, 2007년에는 동유럽 국가들이 주축이 된 IAO에 대항하여 아시아 국가들이 주동이된 국제 천문 및 천체물리 올림피아드(IOAA)가 새로 생겨나는 등 다양화되고 있다. 한편 우리나라는 2009년 전남 담양에서 제 5회 APAO를 개최하고, 2012년에는 제 17회 IAO의 한국 첫 개최를 앞두고 그 어느 때보다 천문학계를 포함한 우리 사회 각계각층의 전반적 관심과 지원을 필요로 하고 있다. 이에 국내외적으로 천문올림피아드가 직면하고 있는 상황 및 문제들에 대한 전반적 고찰 및, 설문조사로 나타난 천문올림피아드 참가 중고등학생들의 현황을 통해 천문올림피아드가 앞으로 나아가야 할 방향에 대해 전망해보고자 한다.

• Journal of the Korean Institute of Rural Architecture
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• v.16 no.3
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• pp.37-44
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• 2014

This study is to clarify the actual conditions of the floor plan of middle and high schools in the rural area. Recently, many middle school and high school are remodeling the buildings and facilities based on the departmentalized classroom system. This study, through analyzing on 4 remodeling cases of middle and high schools in gyeongnam. This article discuses about the basic characteristics of the plan composition and the education programs of 4 schools. This study is showing the variation before and after remodeling and space organization types. The results of this study are summarized as follows; Home-room and home-base should be more faithfully. Various common space is needed to comfortable school life of students. In case of side corridor type plan, moving path is much needed. Sample schools took much more spaces of home base than before. This article discusses about the basic characteristics of the floor plan and the actual condition of the school facilities.

• Tribology and Lubricants
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• v.7 no.2
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• pp.13-21
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• 1991

선박은 사람이나 화물을 수상(水上) 운송수단의 목적으로 오랜 옛날부터 사용하여 왔으며, 금세기에 이르러서는 오랜 옛날부터 사용하여 왔으며, 금세기에 이르러서는 인류문화의 급속한 발전에 따라 주변생활이 가속화(Speed화), 합리화되어 문명의 혜택을 보다 많이 누리게 된 반면에, 국제간에 파생되는 여러가지 교환현상을 바탕으로 지구는 하나의 촌(村)으로 되어 유통경제를 지배하고 이용하는 운송수단으로 발전되어 왔다. 물질문명이 급속히 발전하는 작금, 선용추진 주 기관의 동향을 살펴보면, 1981년 세계에서 건조한 2000톤급 이상의 선박은 940여척으로 이중 13척이 증기 Turbine. 추진(推進), 나머지는 미끄럼 저속 디이젤 또는 중고속 디이젤 추진으로 되어있다. 이와 병행하여 선박에 쓰여지고 있는 각종 윤활제는 주기관으로서 디이젤 engine, Trubine engine, 가솔린 engine, 석유, engine, 선외기, 왕복동 증기기관, Journal계열로서 역전기, 추력베어링, 중간 베어링, 프로펠러베어링, 일반상선으 보조기계로서 발전기, 공기압축기, Boiler, 각종 Pump, 각종 Motor, 냉동기, 조타장치, Side Thrust, 갑판기계, 환기용 송풍기 및 통풍통, Oil 청정기, 수밀로(水蜜爐), 소화설비, 주기 개방용 천정 크레인, elevator, 어선으로서의 주 기관, 보조기기 등에 쓰여지고 있으며 이밖에 수중날개선 등에도 적용되는 등 실로 다양다종한 윤활제가 요구되고 있음에, 본 논고에서는 제목 건을 중심으로 한 선박과 윤활의 중요 Point만을 간추려 기술하고져 한다.

• Journal of the Korean Institute of Rural Architecture
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• v.13 no.2
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• pp.47-54
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• 2011

According to the master plan of the Ministry of Education, Science and Technology, departmentalized class system will be extended to all general middle & high schools by 2014 with the exception only of those having less than 6 classes located in small cities in rural areas. Under departmentalized class system, according to class timetable, students need to move from classroom to another classroom and areas where homebases, lounges, media spaces, rest places, and etc. This study has been undertaken to provide architectural data required in planning for student & learning support space for schools operating departmentalized class system, by investigating and analyzing cases in use at schools operating the system in Chungbuk area. As departmentalized class system is increasingly introduced, student & learning support space should be understood newly as spaces indispensable for students.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.5
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• pp.841-847
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• 2001

Every educational institutes in our country are connected each other with internet lines but their low-level usage environment causes the speed of information-communication net to be slow. Therefore we confront many difficult barriers to operate the highlighted informatization education. In this paper, I examined and studied the effective operation solutions about basic equipment of electronic net.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.05a
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• pp.583-590
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• 2001

Every educational institutes in our country are connected each other with internet lines but their low-level usage environment causes the speed of information-communication net to be slow. Therefore we confront many difficult barriers to operate the highlighted informatization education. In this paper, I examined and studied the effective operation solutions about basic equipment of electronic net.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.4D
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• pp.523-531
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• 2008

This study tried to find differences between housing lotting prices and sale prices owing to new multi-family housing price regulation. As the results of this study, they are as follows; First, this study shows housing market in Busan has a preferences of new housing which has a new housing form differing from the existing housing form. For example, the mixed-use apartment with higher stories shows steeper incline than the apartments with the existing forms. Second, the new housing prices are affected by the information that affect the price of the old existing housing. They are rates of green area of an apartment complex, the number of household, accessibility to downtown Busan and etc.. They are also confirmed factors that affect a rise of used-housing price in other studies. Third, brand value of apartments affects new housing prices. For example, if the major construction companies build the new apartment, it shows a rising trend than any other housing. Therefore, the local construction companies are expected to be put on a disadvantage places than major construction companies. Fourth, the lotting prices are the most important cause that lead to rise the new housing prices. Accordingly, the present lotting prices are expected that upward tendency the purchasing prices of the new housing will not continue, because the lotting prices have risen since the government removed lotting price regulations and exceeded the level of used-housing prices. And it denote that importance of housing sub-market which indicates rates of old existing housing market rising, frist preference Gu, second preference Gu, rate of multi-family housing.

• Phonetics and Speech Sciences
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• v.11 no.4
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• pp.19-33
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• 2019

This paper examines the perception of Korean phonemes by Egyptian learners of Korean and presents the learnability gradient of Korean consonants and vowels through High Variability Phonetic Training (HVPT). 50 Egyptian learners of Korean (27 low proficiency learners and 23 high proficiency learners) participated in 10 sessions of HVPT for Korean vowels, word initial and final consonants. Participants were tested on their identification ability of Korean vowels, word initial consonants, and syllable codas before and after the training. The results showed that both low and high proficiency groups did benefit from the training. Low proficiency learners showed a higher improvement rate than high proficiency learners. Based on the HVPT results, a learnability gradient was established to give insights into priorities in teaching Korean sounds to Egyptian learners.

• 한국노년학
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• v.39 no.4
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• pp.699-721
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• 2019

The purpose of this study was to examine and compare factors affecting the subjective life expectancy among the elderly, and to suggest health practice and social welfare service implications for later life. A total of 4,483 seniors from the 6th wave(2016) of the Korean Longitudinal Study on Aging (KLoSA) were used for analysis. The subjects were divided into three age groups: the young-old (n=2,106, 65~74 years), middle-old (n=1,803, 75~84 years), and oldest-old (n=574, 85 years and older). Control variables were sociodemographic factors and health status factors. Independent variables were health promotion behavior, cognition of public care, participating social activity, economic activity, and receiving basic pension. The data were analyzed using hierarchical multiple regression. The main results were as follows. Health promotion behavior was associated with the young-old. Social activities and economic activity were associated with the young-old and middle-old. Receiving basic pension had a significant impact on all age groups. In the middle-old, significant results were focused on socio-demographic and health status factors compared to other groups. The results of this study will provide basic data for the elderly policy and welfare service and will help to find and improve the important factors for the life of the elderly.

• Journal of Korean Dental Hygiene Science
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• v.6 no.2
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• pp.1-12
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• 2023

Objectives: This study attempted to identify the eating habits and oral health behaviors of Korean teenagers, studying their relationship with oral health status. The findings serve as fundamental data to enhance proper eating habits and oral health-related projects, ultimately improving teenagers' oral health. Methods: It was analyzed through the original data of the 16th (2020) online survey of youth health behavior in Korea, Frequency analysis, complex sample cross-analysis, complex sample logistic regression analysis were conducted using the SPSSwin 21.0 program. Results: As a result of the study, was associated with the consumption of all sweet drinks, fast food intake, and the frequency of daily brushing over the past 7 days Teeth pain is noted with the consumption of soda, sweet drinks, fast food, and the frequency of daily brushing over the past 7 days. Gum bleeding is noted with the consumption of sweetened products, fast food intake, and the frequency of daily brushing over the past 7 days. Conclusions: Eating habits and oral health behaviors should be considered for the oral health management of middle and high school students. Specific measures should be sought to provide proper dietary education and systematic oral health education to improve the oral health of middle and high school students.