청소년을 위한 '이동과학교실' 사례연구를 통한 재미있는 과학의 특성 연구

황성원,최정훈,황북기,Hwang, Sung-Won,Choi, Jung-Hoon,Hwang, Book-Hee 한국초등과학교육학회 2005 초등과학교육 Vol.24 No.5

The 'Mobile Science Lab' is a public program designed to bring teenagers to be engaged in the activities of science and technology. In this study, we attended to elementary school students' participating actions in the program and intended to understand their enjoyment of science from sociocultural and practical perspectives. By drawing on case materials culled from our database, we articulated the features of the enjoyable science activities in the form of two major claims. First, students had rich opportunities to communicate emotionality, which therefore grounds emerging actions on the positive emotional valence. Second, ongoing actions opened up new action possibilities not only to the actors themselves, but also to other community members. The results of this study constitute theoretical frameworks for understanding enjoyment without dichotomizing emotion and cognition, and thereby contribute to designing enjoyable activities of learning science.

PVP GQD / HfOx 구조를 갖는 전도성 필라멘트 기반의 저항성 스위칭 소자 특성

황성원,Hwang, Sung Won 한국반도체디스플레이기술학회 2021 반도체디스플레이기술학회지 Vol.20 No.1

A composite active layer was designed based on graphene quantum dots, which is a low-dimensional structure, and a heterogeneous active layer of graphene quantum dots was applied to the interfacial defect structure to overcome the limitations. Increasing to 1.5~3.5 wt % PVP GQD, Vf changed from 2.16 ~ 2.72 V. When negative deflection is applied to the lower electrode, electrons travel through the HfOx/ITO interface. The Al + ions are reduced and the device dominates at low resistance. In addition, as the PVP GQD concentration increased, the depth of the interfacial defect decreased, and the repetition of appropriate electrical properties was confirmed through Al and HfOx/ITO. The low interfacial defects help electrophoresis of Al+ ions to the PVP GQD layer and the HfOx thin film. A local electric field increase occurred, resulting in the breakage of the conductive filament in the defect.

InGaN/GaN Micro-LED구조를 위한 그래핀 양자점 기반의 산화막 기판 특성

황성원,Hwang, Sung Won 한국반도체디스플레이기술학회 2021 반도체디스플레이기술학회지 Vol.20 No.3

The core-shell InGaN/GaN Multi Quantum Well-Nanowires (MQW-NWs) that were selectively grown on oxide templates with perfectly circular hole patterns were highly crystalline and were shaped as high-aspect-ratio pyramids with semi-polar facets, indicating hexagonal symmetry. The formation of the InGaN active layer was characterized at its various locations for two types of the substrates, one containing defect-free MQW-NWs with GQDs and the other containing MQW-NWs with defects by using HRTEM. The TEM of the defect-free NW showed a typical diode behavior, much larger than that of the NW with defects, resulting in stronger EL from the former device, which holds promise for the realization of high-performance nonpolar core-shell InGaN/GaN MQW-NW substrates. These results suggest that well-defined nonpolar InGaN/GaN MQW-NWs can be utilized for the realization of high-performance LEDs.

이종 계면저항 저감 구조를 적용한 그래핀 양자점 기반의 고체 전해질 특성

황성원,Hwang, Sung Won 한국반도체디스플레이기술학회 2022 반도체디스플레이기술학회지 Vol.21 No.3

The stabilized all-solid-state battery structure indicate a fundamental alternative to the development of next-generation energy storage devices. Existing liquid electrolyte structures severely limit battery stability, creating safety concerns due to the growth of Li dendrites during rapid charge/discharge cycles. In this study, a low-dimensional graphene quantum dot layer structure was applied to demonstrate stable operating characteristics based on Li+ ion conductivity and excellent electrochemical performance. Transmission electron microscopy analysis was performed to elucidate the microstructure at the interface. The low-dimensional structure of GQD-based solid electrolytes has provided an important strategy for stable scalable solid-state lithium battery applications at room temperature. This study indicates that the low-dimensional carbon structure of Li-GQDs can be an effective approach for the stabilization of solid-state Li matrix architectures.

서남해안 2.5GW 해상풍력단지 건설의 경제효과분석

박재필 ( Jae Pil Park ),김민영 ( Min Young Kim ),황성원 ( Sung Won Hwang ),김형성 ( Hyoung Sung Kim ) 한국도서(섬)학회 2014 한국도서연구 Vol.26 No.3

MOTIE(Ministry of Trade, Industry & Energy) aims to build a Southwest 2.5GW offshore wind farm. The job will require help from the government, electric operator and manufacturers. The domestic offshore wind farm market will boost global competitiveness up until 2019. This research analyzes the economic impact of the offshore wind farm project. The local acceptance in terms of production, employment and value added are expected to be maximized. According to the quantitative analysis using the extended 2010 input-output table, we calculated that the production inducement impact will reach up to 13.5 trillion won. 11.07 trillion won from the offshore wind farm industry and 2.4 trillion won from others. Furthermore the impact of increase in employment is expected to reach 22,662. 9,883 will be from the wind farm industry and 12,779 from other fields. The impact is expected to be greater especially during the middle of the jobless growth period, Lastly, the value added inducement impact is expected to be 4.24 trillion won. Regarding economic impacts, strategies required for increasing local acceptance are as follows. First, in order to diversify and sophisticate the primary industry into a secondary or tertiary one, we need to develop the nearby wind farm site into a wind farm thema park. Attracting the wind farm production, installing and maintaining/repairing firms and establishing an experience center for K-12 students by providing them an education center for offshore wind energy can be specific means of development. Also, during the operation and after the destruction of facilities, the government should lay out the sub-structure of the wind farm as a sea ranch. Thirdly, the level of local acceptance regarding the community ownership of the offshore wind farm should increase to those of Middelgrunden(Denmark) and Navarra(Spain). Considering the economic condition of Buan, Gochang and the Yeonggwang area, community ownership is one of best solutions for the increment of local tax revenue. At last, considering the supports system of areas adjacent to power plants and ``Partnership management with local community’, the offshore wind farm operator may need to provide assistant policies to nearby communities. The policies should be based on Corporate Social Responsibility(CSR) such as education scholarship projects, local economy cooperative projects, sports/culture projects.

국내 자연형 어도 설계 기준 마련을 위한 고찰 - 자연형 어도 표준 모형안의 문제점과 개선방안을 중심으로 -

황성원 ( Sung-won Hwang ),김진오 ( Jin-oh Kim ) 한국환경영향평가학회 2017 환경영향평가 Vol.26 No.3

While over 90 percent of fishways are made up with concrete material, nature-like fishways are started to be established as a form of small stream using natural materials. Recently, the central government in collaboration with a university has proposed a `Standard Model of Nature-like Fishway` with a purpose to provide as a national design standard of nature-like fishway. This study aims to criticize the proposed design model of nature-like fishway and to propose improvements by examining other international cases. As a result, we found problems and limitations of the proposed design model due to the lack of research and experience about making nature-like fishway in Korea. Especially, for designing bypass nature-like fishway we found the lack of studies about structure management strategies, establishment of rocks or pebbles inside the stream, and natural materials. In this sense, more studies about nature-like fishway design adaptable to our environment need to be conducted. In addition, since the proposed design standard for nature-like fishway has been created based on the limited examination of existing domestic cases, it is desirable to improve the design standard on the basis of hydrological and biological research so that they could be adapted effectively to regional and local contexts.

성과급적 연봉제에 대한 만족이 국립대 교원의 직무만족, 조직몰입, 공직봉사동기에 미친 영향

황성원 ( Hwang Sung Won ) 단국대학교 융합사회연구소 2016 공공정책과 국정관리 Vol.10 No.3

본 연구는 국립대학교 교수들의 성과급적 연봉제에 대한 만족도가 직무만족, 조직몰입, 공직봉사동기에 미치는 영향을 실증적으로 규명하는데 초점을 두고 있다. 본 연구결과를 살펴보면 다음과 같다. 성과급적 연봉제와 관련된 거의 모든 문항에서 부정적인 반응이 나타났으며, 그 중 제도자체의 호감도와 공정성, 그리고 기준과 방법의 합리성에 대해서 특히 부정적인 것으로 나타났다. 보수만족도 역시 낮게 나타났으며, 보수도 유사수준의 사립대 교수들에 비해서 낮은 것으로 나타났다. 다만, 국립대학교 교수들의 직무만족도와 조직몰입도, 그리고 공직봉사동기에서는 긍정적인 결과가 나타났다. 이를 토대로 볼 때, 국립대학교 교수들이 상대적으로 낮은 보수에도 불구하고 자긍심과 자부심을 가지고 직무에 임하고 있음을 보여주는 것이다. 성과급적 연봉제 만족도에 미치는 영향을 미치는 요인을 검증하기 위해 회귀분석을 한 결과, 공정성, 효과성, 수용성, 전제충족성의 순으로 의미가 있는 것으로 나타났다.

충남의 보육정책에 대한 인식과 요구

황성원(Hwang, Sung Won),최은희(Choe, Eun Hee) 한국유아교육·보육행정학회 2014 유아교육·보육복지연구 Vol.18 No.4

이 논문은 충청남도 지역에 적합한 보육정책을 개발하고자 유아교육과 보육기관에 근무하는 20대에서 50대 원장 및 교사, 아이돌보미, 학부모, 전문가 등 433명에게 설문조사를 실시하여 응답자의 연령과 보육자격에 따라 영유아 양육, 보육서비스, 보육인력, 보육 행․재정지원에 대한 인식과 요구를 분석하였다. 문헌조사, 전문가 및 실무자 간담회를 통해 심층적으로 문항을 개발하여 설문조사를 실시한 결과, 영유아 양육에 대해 부모, 지역사회, 국가에 대한 책임을 강조하였고, 부모교육의 필요성을 인식하고 부모를 위한 양육정보의 제공을 요구하였다. 보육서비스와 관련하여 국공립어린이집에 대한 선호도가 높았으며, 민간어린이집에 대한 지원방안으로 보육교사의 임금체계 개선이 제일 높게 나타났다. 보육인력의 자격에 대하여 2~3년제 대학교 이상의 학력을 요구하였으며, 인성과 인격을 갖춘 보육교직원의 자질을 강조하였다. 마지막으로 보육의 공공성 확보를 위해 공공형 어린이집의 확대를 요구하였고, 유보통합 시중앙정부의 관계 부처가 통합되고, 유아 관련 지원체계가 먼저 이루어져야 한다는 의견이었다. 효과적인 보육료 지원방식으로 '소득계층을 고려한 동일 연령 영유아에 대한 차등 보육료 지원'에 대한 요구가 많았다. 이런 결과는 지역과 국가 수준의 보육정책에 대한 방향성을 구체적으로 제시할 수 있을 것이다. In order to look into recognition and needs of Chungcheongnamdo area nurture policy, this thesis was made on the basis of the questionnaires result conducted on respondents in their twenties and fifties living in si or gun of Chungnam. It investigated which age group respondents showed which recognition and needs of nurture policy, and it also made statistical analysis on data after classification of nurture qualifications into director, nursing teacher, school parents, and professors related to nursery care. With respect to infants' nature, child care service, the quality, qualifications and working conditions of child care manpower, and recognition and needs of child care administrative, financial support policy which were considered by Chungnam inhabitants pursuant to age and nurture qualifications, it will possible to discover and expand fresh nurture policy which is desperately needed in the area, and it is thought that this study will provide very useful information for practicing consumer-oriented nurture policy suitable for regional features of Chungnam.

태권도수련에 따른 지적장애인의 하지 등속성 근기능 및 뇌기능지수 변화

황성원 ( Sung Won Hwang ),김동원 ( Dong Won Kim ),김한철 ( Han Cheol Kim ) 한국특수체육학회 2015 한국특수체육학회지 Vol.23 No.1

이 연구는 규칙적으로 12주간 태권도수련을 통하여 지적장애인들의 하지 등속성 근 기능과 뇌기능지수가 어떻게 변화하는지를 규명하는데 그 목적이 있다. 연구 대상은 A시에 거주하면서 B장애인평생교육원에서 교육을 받는 지적장애인 20명으로 참여집단 10명 통제집단 10명으로 구성하였으며, 측정된 모든 자료는 SPSS Version 20.0K. 통계프로그램을 이용하여 두 집단 간의 평균비교는 사전검사 측정값을 공변인으로 하여 사후검사 측정값을 서로 비교하는 공분산 분석(Analysis Of Covariance)을 실시하였다. 이상의 연구 절차를 통해 얻은 연구 결과, 지적장애인의 하지등속성 근기능 변화에서는 태권도 수련 전과 후의 등속성 60°/sec 신근력 우측, 굴근력 좌·우측에서 최대근력이 증가하였다. 태권도수련 참여를 통한 지적장애인의 뇌기능지수 변화에서는 수련 전과 후의 정서지수에서는 긍정적인 효과가 있는 것으로 나타났다. 이상의 연구결과를 종합해 보면, 태권도수련을 통한 하지 등속성 근기능과 뇌기능지수는 부분적으로 향상되었다는 것을 알 수 있었다. 따라서 12주 이상 지속적으로 태권도 수련은 더욱더 긍정적인 결과를 가져올 수 있기 때문에 추후 연구에서는 지적장애인을 대상으로 12주 이상의 장기간에 걸친 지속적인 회기, 분기별에 따른 연구는 장애인스포츠의 현장적 접근을 위한 다양한 정보를 구체적으로 제공해 줄 수 있을 것으로 생각된다. The purpose of this study was to research led 12 daytime Taekwondo practices systematically and donot do the constant velocity characteristic muscle function and brain functional quotient of the indicationdisabled people should have changed how, there is the objective it examines closely. The researchobject dwells to a and city of 10 people participation group 10 people control groups with total 20people, with the indication disabled people who are in the process of educating in B disabled personlife-long education circle it composes all data which are measured SPSS Version 20.0K. It used astatistical program and two groups the average comparison data prosecuting attorney in advance andwith the covariance person compares a time after death prosecuting attorney data each other analysis ofcovariance (Analysis Of Covariance) which it executed. Research process above it leads and theresearch result which it gets does not do of the indication disabled person from constant velocitycharacteristic patient royal tomb change the Taekwondo practice criminal record kind constant velocitycharacteristic 60°/sec new muscular power right side, oyster muscular power left*The maximummuscular power increased from the right side. From brain functional quotient change of the indicationdisabled person who leads a Taekwondo practice participation it appeared the fact that it is the effectwhich is affirmative from practice criminal record kind emotional quotient. It tried to synthesize theresearch result above, it led the Taekwondo practice and the constant velocity characteristic patient royaltomb and brain functional quotient partially improved was the possibility of knowing the thing. Theresearch which consequently above 12 weeks continuously, the Taekwondo practice more, because being the possibility of bringing the result which is more affirmative from following research the indication disabled person the anniversary of death which is continuous in the object extends in long period above 12 weeks, follows in quarter by is thought with the fact that it will be the possibility to provide information which is various for a disabled person sports site approach concretely.

전기와 자기에 대한 중학생들의 개방적 탐구에서 과제 유형에 따른 탐구 수행 분석

황성원(Sung Won Hwang),박승재(Sung Jae Pak) 한국과학교육학회 2001 한국과학교육학회지 Vol.21 No.2

The purpose of this study is to analyse the eighth grade students` performance of open investigations for two kinds of tasks: the qualitative one which involves the descriptive approach through observation, and the quantitative one which involves the quantitative data processing through control of variables. Researcher`s observation, interview data as well as students` investigation reports, self-evaluations were analysed. The difficulties of qualitative open investigation lie in detecting and dealing with unexpected observations, of which the acceptance and interpretation were influenced by preconceptions. On the other hand, managing several variables, making reliable and valid measures, and quantitative data processing constituted main difficulties of quantitative open investigation. Some students could recognize the deficiencies of their methods and findings in qualitative one, but few in quantitative one. These results suggest the teaching point for each task of open investigations.