• 대한가정학회지
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• 제40권4호
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• pp.201-210
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• 2002

The purpose of this study was to extend the social teaming and imitation theory in an attempt to examine the effect of star-entertainer imitation behavior on clothing behaviors in relation to adolescents' age and gender variables. The research was a survey and the subjects were 895 adolescents in Taejon, Korea. The measuring instruments was serif-administrated questionnaire consisted of star-entertainer imitation behaviors and clothing behaviors. The collected data were analyzed using factor analysis, ANOVA, Duncan's multiple range test. Results were as fellows: 1) The results of analysing the response of star-entertainer imitation behaviors showed that adolescents had very positive attitudes and high psychological need to identify self with star-entertainers, however, their actual identification behaviors were not very noticeable because of parents' restraint and school regulations on students' appearances and clothing behaviors. 2) The results of analysing the response of clothing behaviors showed four factors such as 'fashion$.$clothing interest', 'psychological dependency on clothing' , 'clothing exhibition', and 'clothing conformity'. 3) Star-entertainer imitation behaviors had significant effects on clothing behaviors; the group with more star-entertainer imitation behaviors showed more fashion$.$clothing interest, higher psychological dependency on clothing and clothing exhibition, and lower clothing conformity than the group with less star-entertainer imitation behaviors. 4) Clothing behaviors showed the differences according as adolescents' age and gender; the female adolescents showed more fashion$.$clothing interest and clothing exhibition than male, the high school and cortege age groups showed higher psychological dependency on clothing than other age groups. It is concluded that the results of this study support social teaming and imitation theory since TV media give strong influence on the TV viewers through presenting various modeling stimuli to adolescents' lives.

• 한국식품저장유통학회지
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• 제14권4호
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• pp.351-355
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• 2007

감귤 부위별 및 감귤 주스 가공 후 폐기되는 착즙박을 배지로 하여 재배된 간, 표고, 새송이, 산호침, 참부채 및 영지 버섯) 균사체의 GC/MS에 의한 휘발성 물질을 분석하였다. 감귤 분말에서 휘발성 물질은 29종류이었는데, ${\delta}-elemene$, ${\beta}-elemene$, ${\beta}-caryophyllene$, caryophyllene, ${\gamma}-elemene$, germacrene-D 및 ${\delta}-cadinene$은 감귤류의 essential oil 중의 성분들이었으나 8-hydroxy-linalool, ${\beta}-selinene$, tetradecanoic acid 및 pentadecanal은 essential oil 중의 성분들이 변화한 것이었다. 이외에도 tangeretin, nobiletin, 및 stigmasterol이 검출되었다. 버섯 균사체 분말에서 검출된 휘발성 성분들은 18종이었으며, ${\beta}-elemene$, germacrene-D 및 ${\delta}-cadinene$은 버섯이나 균사체에서 보고되지 않은 것으로 보아 균사체 배지로 사용한 착즙박에서 유래한 것으로 생각된다. caryophyllene, hexadecanoic acid, decanoic acid 및 tetradecanoic acid는 기 보고된 버섯이나 균사체의 성분들이었으며, Limonene-1,2-epoxide, ethyllinoleate, 1,2-benzenedicarboxylic acid, dicyclohexyl ester 및 ($3{\beta}$,24S)-stigmast-5-en-3-ol (${\gamma}-sitosterol$)은 감귤이나 버섯 균사체에서 보고되지 않은 성분들이 검출되었다.

• 전자공학회논문지 IE
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• 제48권1호
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• pp.36-44
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• 2011

본 연구는 전문대학 공학계열 학생들의 수학 기초학습능력과 문제해결능력 신장을 위한 공학수학 수업모형의 설계원리를 도출하고 개발하는 데 목적이 있다. 본 연구를 위해서 첫째, D 대학 디지털전자과의 교수 학습환경 분석과 함께 산업체 및 졸업생을 대상으로 한 요구분석을 실시하였고, 둘째, 요구분석 결과와 관련 선행연구를 바탕으로 공학수학 수강생들의 기초수학학습능력과 문제해결능력 신장을 위한 수업모형의 기반 설계이론을 도출하였다. 연구 결과, 수업모형의 기반 설계이론으로는 (1) 수학 기본개념과 반복훈련을 통해서 수학 기초학습능력을 높이고, (2) 동료 학습자간 협력적 문제해결활동을 통해서 문제해결능력을 신장하고, (3) 학습자의 성찰을 촉진하고 학습자의 수업활동에 대한 교수자의 체계적인 점검과 즉각적인 피드백을 제공하고, (4) 최근 온라인과 모바일 환경에 익숙한 학습자들이 자기주도적으로 학습할 수 있는 환경을 제공하는 것이다.

• 문화기술의 융합
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• 제6권1호
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• pp.495-500
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• 2020

자동차를 기반으로 하는 애드 혹 네트워크 중 하나인 Vehicular Ad Hoc Network(VANET)은 자율 주행차와 커넥티드 카 등의 기술 개발과 더불어 많은 연구가 진행 중인 주제 중 하나이다. VANET을 구현하는 경우 기존의 TCP/IP를 이용한 연구도 진행하고 있지만, Content Centric Networking (CCN)을 이용한 VANET over CCN (VCCN) 관련 연구도 다양한 장점으로 인해 높은 실현 가능성을 보여주고 있다. 본 논문은 CCN 노드들이 관리하는 전송관련 정보 테이블 중에서 Content Store(CS)에 할당된 공간이 모두 사용되어 새로운 항목을 추가할 경우 기존의 일부 항목을 교체하는 경우에 사용되는 다양한 교체 알고리즘의 성능을 평가하고 특정 네트워크 상황에서의 전송특성을 분석하였다. 모의실험 결과, LRU 교체 알고리즘의 성능이 다른 세 가지 교체 알고리즘 보다 우수하였다. 또한 CS 의 크기가 작더라도 전송 성능이 일정 수준을 유지하였으며, CS의 크기가 클수록 전송 성능은 그에 비례하여 상승하였다. 네트워크가 혼잡한 경우 또는 전송 노드 사이의 거리가 먼 경우 데이터 전송 성능도 감소하였다.

• Journal of Preventive Medicine and Public Health
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• 제37권3호
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• pp.220-224
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• 2004

Objectives : To investigate the sexual behavioral characteristics and HIV/AIDS knowledge among men who have sex with men(MSM), one of the HIV high risk groups. Methods : A three month survey among individuals who were able to be contacted was carried out over the entire Republic of Korea, between May and August, 2001. 348 individuals completed a self-administered question-naire. The data collected included demographic informa-tion, sexual behavior and AIDS knowledge. Results : Eighty-seven and ninety-two per cent of the 348 MSM were aged 20-39 years and had never been married, respectively. Fifty-five per cent of participants reported at least one sexual contact with women, and a quarter of the MSM surveyed had engaged in high-risk sexual behavior (more than 6 partners) during the previous year. About twenty per cent of the MSM had anal sex as their favorite way of having sex, and seventy-four per cent did not use condoms regularly due to loss of enjoyment, and were more likely to be engaged in risky behaviors. Only ten per cent had a regular HIV test history, and most had obtained knowledge or information on HIV/AIDS through the mass media. Conclusions : A large proportion of the MSM in Korea still remain at an elevated risk for contracting HIV infection. Change in high-risk sexual behaviors will prevent the spread of HIV infection among the MSM population, which requires public health education for preventive interventions, and should be culturally and socially specific in order to be effective.

• 정보관리학회지
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• 제27권2호
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• pp.61-74
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• 2010

지식관리 프로세스에서 지식공유는 지식의 생성 및 분배에 많은 영향을 주고 있다. 특히, 지식기반 정보기술 환경이 트위터와 같은 소셜미디어 정보서비스 등의 라이브러리 2.0 서비스를 중심으로 지식유통이 활성화되고 있다. 지식공유의 영향 요소에 사회연결망 구조 및 특징에 대한 네트워크의 관계 요소가 조직의 지식공유 활성화를 위한 중요한 요인으로 인식되고 있다. 본 연구는 자기조직화를 통해 유기체와 같이 성장하고 있는 조직 내부의 사회연결망의 구조 및 특성을 사회연결망 분석도구와 다중회귀분석을 통해 1) 사회연결망의 연결구조와 지식공유와의 관계, 2) 구조적 공백과 중심성의 지식공유 영향도, 3) 개인적인 능력, 정보기술 및 업무 인식과 지식공유 관계를 분석하였다.

• 한국치위생학회지
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• 제8권1호
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• pp.107-118
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• 2008

The purpose of this study was to transfer the knowledge of oral health care and to improve the oral health after the effective education of oral health behavior. The survey is conducted for 484 middle and high school students in Busan and Gyeongnam province about the oral health behavior, the cause and the preventive of oral diseases and oral health education experience by the self-answering method. The date was analysed using the SPSS 13.0 program. The obtained result were as follows. 1. 38.8% students in middle school have been to the dentist within one year and the reason is the dental care that is to 61.7% in the case of the high school students. 2. For the daily toothbrushing frequency. above 3 times is highest to 57.9% in middle school students and 2 times 59.9% in high school students. 3. 45.9% and 45.0% students in middle and high school have the regular dental check-ups to prevent the dental caries and periodontal disease with greatest portion. 4. 35.7% respondents had experienced oral health education. 48% of them got the education from the dental clinics. 82.2% of the education method is a theory and the contents is toothbrushing method with 58.7% portion. 5. 86% respondents of middle school students answered that regular oral health education is necessary and 78.1% students are willing to participate in the oral health education. The results of this study propose that the regular dental check-ups for middle and high school students enable them have early medical treatment and protection against oral disease. Also for the effective oral health education, those program and various media should be developed systematically to enhance the students' motive for oral health.

• 한국정보통신학회논문지
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• 제18권8호
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• pp.1877-1884
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• 2014

원격 무선 네트워크 환경에서의 무인 센서 신호처리기의 임무 수행을 위해서는 한정된 전력 자원으로 인해 무인 원격 센서 무선운용 상황에 적합한 신뢰성 있는 저전력 매체 접속 제어 기법이 요구된다. 저전력 무선 네트워크에서 효과적인 신호 전송을 위해서는 CSMA/CA, X-MAC을 일반적으로 고려한다. 본 논문에서는 고정 노드로 구성되는 무선 네트워크에서 노드 제어를 위한 이동 노드의 망 참여/탈퇴가 유동적인 망 형태에서의 신속한 데이터 전달 및 소모 전력 최소화 달성이 가능한 저전력 성능이 향상된 LP-MAC 동작 기법을 제안한다. 고정노드는 망 자율구성을 수행하여 망에 수시로 참여/탈퇴하는 이동 노드로의 빠른 정보 전달을 위해 비동기 방식으로 동작한다. 이동 노드가 망에서 탈퇴할 경우, 망 전체 운용모드가 소모 전력의 최소화를 위한 동기모드로 천이됨으로써 최소 전력 운용이 가능한 매체접속 제어 기법이다.

• Biomolecules & Therapeutics
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• 제17권2호
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• pp.156-161
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• 2009

The human cytochrome P450 4A11 is the major monooxygenase to oxidize the fatty acids and arachidonic acid. The production of 20-hydroxyeicosatetraenoic acid by P450 4A11 has been implicated in the regulation of vascular tone and blood pressure. Oxidation reaction by P450 4A11 requires its reduction partners, NADPH-P450 reductase (NPR). We report the functional expression in Escherichia coli of bicistronic constructs consisting of P450 4A11 encoded by the first cistron and the electron donor protein, NPR by the second. Typical P450 expression levels of wild type and several N-terminal modified mutants was observed in culture media and prepared membrane fractions. The expression of functional NPR in the constructed P450 4A11: NPR bicistronic system was clearly verified by reduction of nitroblue tetrazolium. Membrane preparation containing P450 4A11 and NPR efficiently oxidized lauric acid mainly to $\omega$-hydroxylauric acid. Bicistronic coexpression of P450 4A11 and NPR in E. coli cells can be extended toward identification of novel drug metabolites or therapeutic agents involved in P450 4A11 dependent signal pathways.

• 한국문헌정보학회지
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• 제16권
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• pp.71-110
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• 1989

The purpose of this study is to investigate the influential factors creating the modern library thought in the latter part of Yi Dynasty. After Korea was forced to make a treaty opening up the country in 1876, Western civilization was introduced and reforms were carried out eventually. Various influential factors could be taken into consideration as follows. (1) The envoys to Japan after 1876 (2) Tourists party to Japan organized by Gentlemen in 1982 (3) The persons who studied abroad (4) Establishment of modern schools and development of publications: on the new learning. (5) News media and others Above all, the persons who studied abroad, such as Yu Gil Jun, Yun Chi Ho, etc., in early stage has contributed most to the extension of public recognition for modern library in Korea. Therefore it can be said that the formation of modern library thought in Korea was based on the theory of the Western library as was the Japan in the period of Meiji Restoration. Patriotic intelectualls in these days believed that reform of the educational system and the diffusion of knowledge was very much meeded in order to preserve an independent Korea and to build up national strength, and then nation-wide campaign for enlightenment was earried on. For that reason the movement of the national library establishment in 1906 also should be regarded from the same point of view, that is, as a part of the enlightenment campaign. Therefore it should not go unheeded that strong patriotism was always streamed under the ground of the library campaign as well as the new learning and new education campaign. Unfortunately every plan of Korean library movement had broken down and missed the chance for having experience of self-development because of the Japanese invasion.