섬유 및 혼화제를 이용한 황토 모르타르의 수축균열 제어

문주현(Mun Ju-Hyun),양근혁(Yang Keun-Hyeok),전중규(Jeon Joong-Kyu),황혜주(Hwang Hye-Zoo) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.8

A total of 8 hwang-toh mortar mixes with no cement were tested to evaluate the effect of different fibers and admixtures on the control of shrinkage cracks of such mortars. The fiber types added were Lyocell, Poly-Amid and PVA, while, CSA and organic polymer were selected as the admixture. The shrinkage crack resistance of hwang-toh mortar were examined from the unrestrained drying shrinkage strain, restrained drying shrinkage and plastic shrinkage. Test results revealed that the unrestrained drying shrinkage strain of hwang-toh mortar sharply increased at an early age showing approximately 2.5 times higher values than predictions obtained from ACI 209, regardless of the addition of fibers and admixtures. In addition, cracks owing to the restrained drying shrinkage developed at the only age of 1.6 days in all test mixes; as a result, the cracking grade of hwang-toh mortar was evaluated to be high. On the other hand, the addition of fibers required a value of fiber spacing above 0.0003 in order to enhance the tensile resistance capacity of hwang-toh mortar under the restrained drying shrinkage and reduce the cracking area under the plastic shrinkage. Overall, it could be concluded that moist curing at an early age and the addition of fiber with fiber spacing above 0.0003 are practically effective in reducing shrinkage crack of hwang-toh mortar.

황토모르타르의 압축강도 증진을 위한 실험적 연구

황원주 ( Hwang Won Ju ),김종우 ( Kim Jong Woo ),하상수 ( Ha Sang Su ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.2

The purpose of this experimental study is to increase the strength of mortar mixed with activated Hwang-Toh (AHT) and granulated blast furnace slag (GGBS) as a compound for the development of eco-friendly concrete. The compressive strength test was carried out by making mortar specimens with a certain ratio of AHT and GGBS. The percentage of AHT were at 30% and 50% and the GGBS were a 40% and 50% as Major variables. The results of this study showed that for specimens with percentage of AHT at 30% with GGBS increased above the strength of the mortar without the binding. However, the compressive strength of experimentation with percentage of AHT at 50% with partially replace GGBS has decreased by more than the mortar without the binding. Therefore, further study is deemed necessary.

지역자활센터 종사자의 서번트리더십이 지역자활센터 사업단의 경영성과에 미치는 영향: 회복탄력성과 자기존중감의 매개변수를 중심으로

황복주(Hwang, Bok-Ju) 한국경영교육학회 2020 경영교육연구 Vol.35 No.6

[연구목적] 본 연구는 지역자활센터 종사자의 서번트리더십이 참여자의 회복탄력성, 자기존중감에 영향을 미치는지 알아보고 매개변수인 회복탄력성과 자기존중감이 종속변수인 지역자활센터 사업단의 경영성과에 영향을 미치는지 검정하여 자활센터 종사자의 인적자원관리를 향상시켜 사업단의 경영성과를 제고시킬 수 있는 방안을 제시하고자 한다. [연구방법] 연구목적을 달성하기 위하여 지역자활센터 참여자들을 대상으로 설문조사를 실시하였고 총 220부의 설문지로 구조방정식모형분석을 통해 가설을 검정하였다. [연구결과] 지역자활센터 종사자의 서번트리더십이 참여자의 회복탄력성과 자기존중감에 정(+)의 영향을 미칠 것이다. 라는 가설과 참여자의 자기존중감이 회복탄력성과 경영성과에 정(+)의 영향을 미칠 것이라는 가설은 채택되었다. 반면에 종사자의 서번트리더십과 참여자의 회복탄력성이 사업단의 경영성과에 영향을 미칠 것이라는 가설은 기각되었다. [연구의 시사점] 자활센터의 종사자의 서번트리더십은 자활센터 참여자의 회복탄력성, 자기존중감 향상에 유의미함을 확인하였으므로 종사자는 서번트리더십으로 참여자의 회복탄력성과 자기존중감을 향상시킬 수 있는 인적요소에 대한 세심한 배려가 요구된다. [Purpose] This study examines whether the servant leadership of community self-sufficiency center workers(team leader) affects resilience and self-esteem or not and tests whether the parameters of resilience and self-respect affect the management performance of the community self-sufficiency center business group or not. It intends to present measures for enhancing the management performance of the business group by improving the human resources management in the community self-sufficiency center. [Methodology] In order to achieve these research objectives, this study surveyed 220 participants of the community self-sufficiency center and tested the hypothesis by analyzing the structural equation model. [Findings] The servant leadership of community self-sufficiency center workers(team leader) had a positive effect on participants’ resilience and self-esteem. Self-esteem of participants in the community self-sufficiency center had a positive effect on resilience and management performance. However, the servant leadership of community self-sufficiency center workers(team leader) and the resilience of participants did not affect the management performance of the business group. [Implications] The servant leadership of community self-sufficiency center workers(team leader) was found to be significant in improving resilience and self-esteem of community self-sufficiency center participants. Self-respect leads to a sense of responsibility for achieving the goal, which has a significant effect on the management performance of the self-sufficiency center business group, but it recognized that the servant leadership had effect on management performance through an intermediation of self-esteem.

영아교사의 음악교육 지식에 대한 자기 인식, 음악교수 효능감과 영아의 자발적 음악행동과의 관계

황인주(Hwang in ju) 한국육아지원학회 2010 육아지원연구 Vol.5 No.2

본 연구는 만 1, 2세 영아 학급 교사의 음악교육 지식에 대한 자기 인식, 음악교수 효능감과 영아의 자발적 음악행동과의 관계를 알아보고자 하였다. 이를 위해 서울시와 경기도에 위치한 7개 유아교육기 관의 만 1, 2세 반에 재원중인 영아 101명과 담당교사 20명을 선정하였다. 연구도구로 장은주(2007)의 ‘음악교육 지식에 대한 자기 인식’, 방은영, 박찬옥(2005)의 ‘음악교수 효능감’, 황인주(2008)의 ‘영아의 자발적 음악행동 목록’을 사용하였다. 본 연구의 결과는 다음과 같다. 첫째, 영아교사의 음악교육 지식 에 대한 자기 인식의 평균은 3.48, 음악교수 효능감의 평균은 3.40이었다. 둘째, 영아의 자발적인 음악행 동은 자발적 발성과 음악적 움직이기가 많이 나타났다. 셋째, 영아교사의 음악교육 지식에 대한 자기 인식과 음악교수 효능감은 강력한 상관관계가 있었으며, 음악교육 지식에 대한 자기 인식, 음악교수 효 능감과 영아의 자발적 음악행동의 하위변인별로 정적인 상관관계가 있었다. 넷째, 영아교사의 음악교 육 지식에 대한 자기 인식과 음악교수 효능감은 영아의 자발적 음악행동을 유의미하게 설명하였다. The purpose of this study was to examine the relationships among teachers’ self-perception on musical knowledge of infants’ education, music teaching efficacy belief, and spontaneous music behaviors. The subjects for this study were 101 infants and 20 teachers who were one-to-two year classes in Seoul and Kyeonggi-do. In order to examine this study, Chang’s(2007) ‘The questionnaires about self-perception on musical knowledge of infants’ music education’, Bang & Park’s(2005) ‘The questionnaires about music teaching efficacy belief’, and Hwang’s (2008) ‘The behavior styles and frequencies during spontaneous music play’ were used. The results were: (1)The mean of teachers’ self-perception on musical knowledge was 3.43, and teachers’ efficacy was 3.40. (2)At the top of the list was spontaneous vocalization and musical movement in spontaneous music behaviors. (3)A positive relationship was shown among teachers’ self-perception on musical knowledge, teaching efficacy of infants music education, and infants’ spontaneous music behaviors. (4)Teachers’ self-perception on musical knowledge and teaching efficacy of infants music education affected infants' spontaneous music behaviors positively.

노인의 노후준비가 성공적노화 문화에 미치는 영향 -자기효능감과 사회참여활동의 매개효과

황길주(Hwang, Gil?Ju),정명희(Jung, Myung-hee) 한국문화산업학회 2021 문화산업연구 Vol.21 No.3

본 연구는 노인의 노후준비가 성공적 노화에 미치는 영향을 분석하고, 자기효능감과 사회참여활동의 매개효과를 알아보는 데 목적이 있다. 이를 검증하기 위해 만 60세 이상의 노인 447명이 응답한 분석 자료를 SPSS 23와 AMOS 23.0 통계패키지프로그램을 활용하여 모형의 적합도와 매개효과 유의성을 검증하였다. 연구결과는 첫째, 노후준비와 자기효능감, 사회참여활동, 성공적 노화의 측정변인들은 통계적으로 정적 상관관계로 나타났다. 둘째, 노후준비는 자기효능감과 사회참여활동에 통계적으로 유의하였으며, 노후준비의 경제적 준비는 성공적 노화의 사회적 측면에 유의한 영향을 미치고, 노후준비의 사회적 지지는 성공적 노화의 정서적 측면에 유의한 영향을 미치는 것으로 나타났다, 셋째, 노인의 자기효능감은 사회참여활동에 유의한 영향을 미치는 것으로 나타났고, 노인의 자기효능감과 사회참여활동은 성공적 노화의 모든 요인에 유의한 영향을 미치는 것으로 나타났다. 넷째, 노후준비와 성공적 노화 간의 관계에서 자기효능감과 사회참여활동은 매개효과가 있는 것으로 나타났다. 이러한 결과를 중심으로 본 연구에서는 노인의 성공적 노후생활을 촉진하는 경제활동 등 다양한 사회참여활동을 위한 방향과 후속 연구에 대한 제언을 제시하였다. The purpose of this study is to analyze the effect of the elderly"s preparation for old age on successful aging, and to investigate the mediating effect of self-efficacy and social participation. To verify this, the fit of the model and the significance of the mediating effect were verified by using the SPSS 23 and AMOS 23.0 statistical package programs for the analysis data answered by 447 elderly people over the age of 60. The results of the study were first, that the measurement variables of preparation for old age, self-efficacy, social participation, and successful aging were statistically positively correlated. Second, old-age preparation was statistically significant on self-efficacy and social participation activities, economic preparation for old-age preparation had a significant effect on the social aspect of successful aging, and social support of old-age preparation had a significant effect on the emotional aspect of successful aging. Third, the self-efficacy of the elderly was found to have a significant effect on social participation, and the self-efficacy and social participation of the elderly had a significant effect on all factors of successful aging. Fourth, it was found that self-efficacy and social participation had a mediating effect in the relationship between preparation for old age and successful aging. Based on these results, this study presented directions for various social participation activities such as economic activities that promote successful old-age life and suggestions for follow-up studies.

만2-3세 영유아의 음악적성과 음악태도와의 관계

황인주 ( In Ju Hwang ) 이화여자대학교 음악연구소 2008 이화음악논집 Vol.12 No.1

본 연구는 만2-3세 영유아의 음악적성과 음악태도와의 관계를 알아보고자 하였다. 이를 위하여 안산시에 위치한 A와 B 두 어린이집의 만2세 영아반에 재원하고 있는 영아 45명을 대상으로 음악적성, 음악태도를 알아보았다. 음악적성은 Gordon(1989)의 PMMA를 수정하여 사용하였으며 음악태도는 관찰의 방법으로 ``음악관련 자발적인 행동유형과 빈도``와 ``교사가 제안하는 음악활동 참여유형의 빈도``를 관찰하여 황인주(2008)의 기준에 의하여 분석하였다. 연구결과 음악적성과 음악태도는 유의미한 정적인 상관관계가 있었다. 음악적성의 음정과 리듬간에 유의마한 정적인 상관관계가 있었다. 음악태도 중 음악관련 자발적인 행동유형간에 유의한 상관관계가 있었으며 특히 자발적인 움직이기는 모든 행동유형과 정적인 상관관계가 있었다. 음악태도 중 교사가 제안하는 음악활동의 참여유형에서 소극적 참여와 적극적 참여간에 부적인 상관관계가 있었으며 적극적 참여종 노래부르기, 악기연주, 움직이기는 정적인 상관관계가 있었다. 음악적성과 음악관련 자발적인 행동유형간에 정적인 상관관계가 있었으며 특히 리듬적성에서 유의미한 관계가 있었다. 음악적성과 교사가 제안하는 음악활동의 참여유형 중 적극적 참여와 정적인 상관관계가 있었다. 음악관련 자발적인 행동유형과 교사가 제안하는 음악활동의 참여유형간에도 유의미한 정적인 상관관계가 있었다. The purpose of this study was to investigate toddlers` music aptitude in relation to music attitude. The subjects for this study were 45 toddlers who were two-three years old and enrolled at the Child Care Center in Ansan City. In order to examine the toddlers` music aptitude, Gordon`s (1989) PMMA and Hwang`s (2008) ``Behavior Styles and Frequencies During Spontaneous Music Play`` and ``Participation Styles and Frequencies During Teacher-Directed Musical Activities`` were used. The results were: (1) A positive relationship was shown between tonal and rhythm. (2) A positive relationship was shown among Behavior Styles and Frequencies During Spontaneous Music Play. (3) A positive relationship was shown among Participation Styles and Frequencies During Teacher-Directed Musical Activities. (4) A positive relationship was shown between music aptitude and Behavior Styles and Frequencies During Spontaneous Music Play. (5) A positive relationship was shown between music aptitude and Participation Styles and Frequencies During Teacher-Directed Musical Activities. (6) A positive relationship was shown between Behavior Styles and Frequencies During Spontaneous Music Play and Participation Styles and Frequencies During Teacher-Directed Musical Activities.

다층인공신경망에 기초한 구조계 정정

황진하,박종회,김주한 충북대학교 건설기술연구소 2004 建設技術論文集 Vol.23 No.1

The structural system identification using neural networks is presented in this study. Among the neural networks, backpropagation neural network is adopted to fulfill the damage assessment. When the damages occur, the structural responses are changed and the responses contain the damage locations and extents. The static displacements of the truss structure are induced by the various damage states under the static load. In the neural networks the displaces are the inputs and the damage locations and extents are the outputs. The simulation informs that it is efficient to apply the neural network to the damage detection.

살풀이춤의 무용미학적 고찰 : 한영숙류를 중심으로 by making the style of Han, Young-Sook

황경숙,이주연 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5

This study will investigate the origin, the developments and the characteristics of salpuri dances. From this analyzing process of the following results are derived: First, salpuri dance originated from shamanism. The basic frame of salpuri dance was revived in detail by Han Sung Joon who had featured the folk dance performed by a professional girl entertainer(Kisaeng). Afterward, salpuri dance was more developed by Han Young Sook to be light, elegant, lingering, refined, and above all emotion-controlled. Second, the three major styles of salpuri dances have the different characteristics compare with historical background, the rhythm, dance-clothes and tools, and frame. The style of Han Young Sook is characterized by its harmony with courtesy, well-polished & aristocratic, and simple beauty.

원격구조모니터링시스템 개발을 위한 개념설계

황진하,박종희,정진덕,김주한 충북대학교 건설기술연구소 2003 建設技術論文集 Vol.22 No.2

A conceptual design for the development of a remote structural monitoring system is presented in this study. First of all, to satisfy the engineering and customer requirements, requirements/functional analysis for the remote structural monitoring systems are performed in context of the systems approach. The problem definition is given, And the market competitors are analyzed by benchmarking and the alternatives are evaluated. Based on the informations from the above stage, the key elements of the systems are extracted through the functional decomposition and the schematic specifications are described.

이데올로기적 기능으로서 한국 궁중무용 <가인전목단> 연구

황경숙,이주연 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

The purpose of this study is to focus on the political function of dance. this paper adopted two analysis methods, researching purpose of this study: the first method is ISA(ideological state apparatuses) by Louis Althusser's pour Marx and the second method is semiotic analysis. We analyze texts on the korean inner-court dance <Gainjunmockdan> by means of two methods. At this point, the thesis introduces a mutual politic relation with politics between dance into korean dance's history, and so criticism of socialistic art. According to these analysis. the dance is characteristic of political messages with physical languages. Also its propagate the control consciousness of ruling class by a mutual relation. At final point. we try to analyze texts of korean inner-court dance<Gainjunmockdan> from a ideological point of view. These texts - properties. customs, wordbook. physical blocking. movement's narrative - finally demonstrate a political contexts with semiotic analysis. Finally, we see over how the study of dance have political ideology, analyzing political attributions.