최적경로 알고리듬을 활용한 경제적인 통신망 설계 적용 사례

정주영,최윤수,전철민,조성길,Jung, Ju-Young,Choi, Yun-Soo,Jun, Chul-Min,Cho, Seong-Kil 한국공간정보시스템학회 2006 한국공간정보시스템학회 논문지 Vol.8 No.1

본 논문에서는 GIS와 네트웍 알고리듬을 이용하여 통신관망의 설계를 최적화하였다. 구체적이고 계량적인 분석을 위해 신규로 조성되는 대규모의 도시개발지역을 대상으로 하여 기존의 설계방식에 의해 산출된 통신관망과 최적경로 알고리듬을 이용한 통신관망과의 건설비용을 비교하였다. 본 연구의 결과 GIS와 최적경로 알고리듬을 적용한 설계 결과가 기존의 설계방법에 비해 상당한 비용절감 효과가 있음을 보여준다. 연구 대상지역에서 기존설계에 의해 산출된 통신관로의 거리는 5,267m이며 최적경로를 적용한 결과는 4,807m로 460m(9.5%)의 차이를 보였다. 결과를 비용으로 산정했을 경우 약 19,469천원(8.7%)의 비용절감 효과를 보였다. 본 연구에서 제시된 최적화 기법은 기존 설계기법에 비해 통신관망의 공사비의 절감 이외에 설계과정의 표준화 및 자동화가 가능하므로 이를 이용한 자동설계 시스템 개발로 설계비용과 인력이동에 따른 설계업무 적응기간 단축과 인건비 절감이 가능하며, 또한 설계 결과에 대한 객관적 검증이 가능할 것으로 판단된다. In this paper, several network algorithms were tested to find an optimal one for telecommunication network design. Algorithms such as Dijkstra's shortest path algorithm, Ford-Bellman's shortest path algorithm, Prim's minimum spanning tree algorithm, and Kruscal's minimum spanning tree algorithm were reviewed and compared in terms of feasibility and resulted network construction cost. Then an optimal algorithm that is most suitable for telecommunication network design was selected. For more specific and quantitative analysis of the selected algorithm, it was implemented to a real telecommunication network construction site. The analyzed results showed that the suggested design method when compared with the conventional one, reduced the network construction cost considerably. The total network length estimated by the conventional method were 5267 meters while the suggested method resulted in 4807 meters. Thus the new method reduced the total network length by 8.7 percent which is equivalent to 97,469,000 Won of construction cost. Considering the frequent telecommunication network constructions, due to new urban developments in the nation, the economic benefit of the suggested telecommunication network design method will be significant. In addition to the construction cost savings, the suggested telecommunication network design procedure possesses several other economic benefits. Since the design procedure can be standardized and automatized, it can reduce the design cost itself and the skill acquirement periods required for new or inapt design crews. Further, due to the standardized and automatized design procedure, any telecommunication network design results can accessed more objectively.

콩팥에서 Erythropoietin 투여로 인한 HSP70의 발현 변화

정주영,김진,Jung, Ju-Young,Kim, Jin 한국현미경학회 2007 Applied microscopy Vol.37 No.3

Heat shock protein 70 (HSP70)은 다양한 질병상태와 치명적인 열 손상에서 세포 및 조직을 보호하는데 중요한 역할을 하며, 또한 외부의 stress로부터 세포내 단백질의 파괴와 변화를 감소시키는 단백질로 알려져 있다. 본 연구에서는 오랜 기간 동안 조혈기관의 치료제로 콩팥에서도 세포보호효과가 있는 것으로 알려진 Erythropoietin(EPO)을 투여하여 콩팥내의 HSP70의 발현변화를 세포수준에서 관찰하고자 하였다. Sprague-Dawley계 흰쥐를 사용하여 전자현미경적 면역조직화학법으로 rHuEPO투여군과 대조군에서 HSP70의 발현변화를 관찰하였다. 대조군에서 HSP70은 콩팥의 바깥수질과 속수질에서 관찰되었으며, 특히 속수질에서 강하게 발현되었고 그 부위는 속수질집합관세포와 헨레고리의 내림가는 부분이었다. EPO 투여군에서는 속수질과 바깥수질의 내림가는 부분에서는 발현변화가 관찰되지 않았으나, 바깥수질의 집합관 세포에서 발현이 급격히 증가함을 관찰되었다. 특히 대조군에서의 핵주변부위뿐 아니라 세포내 핵상부분을 비롯한 세포막주변부위에도 강한 면역 염색성을 나타내었다. 이러한 결과는 콩팥의 바깥수질에서 stress성 단백질인 HSP70의 조절기전이 EPO에 의해 매개됨을 보여주면, 세포 stress및 질병상태에서도 이러한 기전이 작용할 것으로 생각된다. Heat shock protein (HSP) 70 functions as a molecular chaperon and reduces stress-induced denaturation and aggregation of intracellular proteins. Erythropoietin (EPO) plays an important role during acute renal failure repair process by rapidly correcting anemia and enhancing renal tubular regeneration. The purpose of this study was to examine the effect of EPO treatment on renal HSP70 expression. Male Sprague-Dawley rats were injected rHUEPO. Kidney were preserved by in vivo perfusion with paraformaldehyde-lysine-periodate (PLP) and processed for immunohistochemistry and electron microscopy. In control kidney, HSP70 was expressed in the cortex, outer medulla and inner medulla. Especially, HSP immunoreactiviy was mainly founded in descending thin limb of outer medulla and inner medullary collecting duct. In EPO treated kidney, HSP70 expression markedly increased in the descending thin limb of outer medulla and newly detected in cortical collecting duct. Electron microscopy showed the presence of HSP immunoreactivity on the intracelluar vesicles and Golgi complex of descending thin limb and cortical collecting duct. These findings suggest that EPO treatment leads to new production of HSP70 in renal tubular cells, and induction of HSP70 by rHuEPO is causally related to protective function.

국제 비교를 통한 교사-학부모 참여 액션러닝 실천공동체(PT Action Learning CoP) 활동 프로그램 개발

정주영(Jung Ju-Young),홍광표(Hong Kwang-Pyo) 동북아시아문화학회 2011 동북아 문화연구 Vol.1 No.27

The purpose of this research is developing the ‘Parent-Teacher Learning Community of Practice’ program through the international comparison. For this purpose, We studied parent participation in school education and the international comparison of the theoretical study. And we derived the current issue of parental school education and the vision, direction, etc. of this research through the result of theoretical study and international comparison. Next, we have built a concrete strategy of CoP activities based on the result of needs analysis. PT-Action Learning CoP activities, based on the result of research, was composed of core activities process, times, performance goals, core performance activities, learner support element, core promotion activities, facilitator support elements and blended learning environments. Accordingly, we made the CoP. And we applied to the teacher and parent in N elementary school in B metropolitan city. As, the result, It was highlighted effectiveness - interest in improving of CoP activities, requires continuous CoP activities, needs of teacher relief work, the enhancement of mutual understanding, a deeper understanding of child.

『파라다이스』 에 나타난 낙원의 이중성

정주영(Jung, Ju-Young) 신영어영문학회 2015 신영어영문학 Vol.60 No.-

This paper examines several incest marriages in Ruby community in Toni Morrison’s Paradise. At first, the marriages began in a way of protecting themselves in the community. But as time goes by, they sought for self identity extremely. As a result, incest marriages become a rule. And this paper emphasizes that oven in Ruby community functions as a totem and their incest marriages are an opposite adaption of “One drop rule” which was made by whites. Compared with other Morrison’s novels, incests in Paradise are artificial and formal. Besides, this paper spotlights twins of the Ruby community as a representation of self identity and narcissism. Ruby members also volunteerly refuse entering the Symbol, Lacan’s concept. But above all, this paper points out their incest marriage is a kind of resistance against racism in America.

제 3국 출생 북한이탈주민 자녀의 한국입국 전후 삶의 경험에 관한 현상학연구

정주영 ( Jeong Ju Young ),박정란 ( Park Jung Ran ) 한국청소년복지학회 2016 청소년복지연구 Vol.18 No.4

본 연구는 제 3국 출생 북한이탈주민 자녀의 한국입국 전후의 삶의 경험의 의미를 Giorogi의 현상학적 분석을 토대로 밝혔다. 그 결과 총 326개의 의미단위와 24개의 하위경험요소, 10개의 경험요소 그리고 본질적 의미를 도출하였다. 중도입국한 제 3국 출생 북한이탈주민 자녀가 경험한 한국전후 삶의 본질적인 의미는 `배려받지 못하고 홀로 버티는 삶`이었다. 제 3국에서의 경험은 `엄마가 없는 시간의 슬픔과 상처`였으며 한국 입국과정은 `제 3국 가족들의 반대에도 엄마를 찾아 한국에 옴`이었다. 한국 입국 후 경험의 의미는 `달라진 엄마, 달라진 환경 속에서 혼란과 갈등`으로 분석되었다. 이상의 연구결과를 반영해 본 연구는 다음의 함의를 제시하였다. 먼저 어머니와의 관계와 낯선 환경 적응을 위한 심리적 지원이 필요하다. 둘째, 북한출신 어머니와 자녀들에 겪는 세대갈등 이상의 문화갈등을 극복하기 위한 부모교육이 이루어져야 한다. 셋째, 이들의 정서적 안정을 위하여 새로운 가족과의 소통과 제3국과의 가족과의 지속적 교류를 도와야 한다. 넷째, 단순한 언어습득이 아닌 문화차이를 고려한 효과적인 언어교육과 진로지도가 필요하다. The objective of the study is to explore the meanings of experiences that the North Korean defectors` children who were born in 3rd country into South Korea by using the Giorgi`s Phenomenological analysis. Data were classified into 326 types of contents, 10 categories of experience, 24 subcategories of experience. Plus, it drew the intrinsic meaning, `North Korean defectors withstood hunger and deprivation on their own without any concern.` Another finding was that the experience of child defectors in 3rd countries represented their grief without their mother, which caused young defectors to enter South Korea to seek their mother without their family`s consent. After immigration into South Korea, child defectors undergo confusion and conflict because their mother were not same as before and they were surrounded by the unfamiliar environment. The study implies that an psychological intervention should provide child defectors so that they adjust to a new environment and the education for parents with young defectors should be performed so as to solve cultural conflicts between North Korean mothers and her children. In addition, it is essential to offer young defectors with a channel to communicate with their biological family and their new family, which helps child defectors to be mentally stable. Lastly, language education, which is not a tool to merely acquire the language but to apprehend cultures, and a guide to young defectors` future should be necessary.

연약지반 굴착 시 굴착저면의 안정성 평가에 관한 연구

정주영(Ju-Young Jung),임종철(Jong-Chul Im),권정근(Joung-geun Kwon),이형준(Lee-Hyung Jun) 한국지반환경공학회 2009 한국지반환경공학회 학술발표회논문집 Vol.2009 No.-

실제적 문제해결을 위한 대학생 팀 기반 프로젝트 학습 모형 개발

정주영(Ju-Young JUNG),홍광표(Kwang-Pyo HONG) 한국수산해양교육학회 2018 水産海洋敎育硏究 Vol.30 No.3

플립러닝 수업이 대학생의 자기주도 및 자기조절학습능력에 미치는 효과

정주영(Jung Ju Young) 학습자중심교과교육학회 2017 학습자중심교과교육연구 Vol.17 No.4

본 연구는 플립러닝 수업이 대학생들의 자기주도학습 및 자기조절학습에 미치는 영향을 밝히고자 하는데 목적을 두고 있다. 이를 위해 D대학교, 2016학년도 1학기, 교육방법및교육공학 교과목 수강자인 대학생 93명을 대상으로 실험집단과 통제집단으로 나누어 자기주도학습 및 자기조절학습에 대한 검사를 실시하였다. 실험집단은 CHANGE 플립러닝 모형을 적용하여 한 학기 수업을 진행한 후 실험집단과 통제집단에 사후검사를 실시하고 t-검증을 실시하였다. 연구결과는 다음과 같다. 첫째, 플립러닝 수업이 대학생의 자기주도학습 능력에 미치는 영향을 알아보기 위하여 대응표본 t-검증을 실시한 결과, 학습욕구, 학습목표, 학습을 위한 자원 파악, 학습 전략의 선택 등은 통계적으로 유의미한 차이를 보이며 평균값이 증가하는 것을 확인할 수 있었지만, 학습 실행의지 속성은 통계적으로 유의미한 범위에서 평균값이 하락하는 모습을 보였다. 둘째, 플립러닝이 대학생의 자기조절학습 능력에 미치는 영향을 알아보기 위하여 대응표본 t-검증을 실시한 결과, 일상에서의 공부방법, 학교에서의 공부방법은 통계적으로 유의미한 범위에서 평균이 상승하는 차이를 보였다. This research aims at examining the effect of flipped learning class on university students self-directed learning and self-regulated learning. To accomplish this goal, 93 D university students registering for educational methodology and educational technology at the first semester of 2016 were divided into an experimental group and a control group, and a pretest on self-directed learning and self-regulated learning was conducted. The CHANGE flipped learning model was applied to the experimental group for one semester, a post test was conducted on the experimental group and the control group, and t-test was carried out using SPSS windows 21.0. The research results are as the followings. First, as the paired sample t-test results carried out to investigate the influence of flip learning class on the university students self-directed learning ability, it was proved that the average of the desire to learning, learning goals, figuring out resources for learning, the choice of learning strategies and etc. had increased with statistically meaningful differences. Yet, the average of the quality of the will to practice learning was found out to decrease in a statistically meaningful range. Second, when the paired sample t-test was conducted in order to examine how flip learning affected the university students ability of self-regulated learning, the average of study methods and that of the study methods at school increased at different degree in a statistically meaningful range.

게이미피케이션(Gamification)을 적용한 수업의 학습몰입 및 수업참여도 분석

정주영(Jung, Ju-Young),이미화(Lee, Mi-Hwa) 부산대학교 교육발전연구소 2021 교육혁신연구 Vol.31 No.3

연구목적: 본 연구에서는 블렌디드 수업상황에서 게이미피케이션을 적용한 수업의 학습몰입 및 수업참여도의 효과성을 분석하는 것이다. 연구방법: 연구대상은 B광역시 D대학교, 4개 교과목을 수강하는 74명을 대상으로 학습몰입과 수업참여도 검사(사전-사후) 후 대응표본 t-검정으로 분석하였다. 연구결과: 학습몰입은 사전검사(M=3.35)에서 사후검사(M=4.04)로 0.69점 증가하여 통계적으로 유의미한 차이가 뚜렷하게 났다(t=-5.54, p<.001). 수업참여도는 사전검사(M=4.28)에서 사후검사(M=3.74)로 0.54점 증가하여 통계적으로 유의미한 차이가 뚜렷하게 났다(t=-6.05, p<.001). 결론 및 논의: 본 연구에서의 게이미피케이션을 적용한 수업은 학습 몰입, 수업참여도의 모든 하위 요인에서 유의미한 결과가 나타났다. 이는 classdojo 플랫폼 활용, 게임 메카니즘 전략(포인트, 보상, 리더보드, 도전, 지속적인 참여) 수업설계, 상호작용전략(오픈채팅방 및 kahoot 활용) 등을 통해 이루어진 것으로 보인다. 향후 메타버스(metaverse) 환경의 학습관리스템(LMS) 지원, 교수자와 학습자를 위한 교육의 기회 제공이 필요하다. Purpose: This study is to analyze the effectiveness of learning immersion and class participation in a class with gamification applied in an online class situation. Method: The study subjects were 74 students who were taking 4 courses at University B and University D, and a paired sample t-test analysis was performed by conducting a learning immersion and class satisfaction test (pre-post) Results: Learning immersion increased by 0.69 points from the pre-test (M=3.35) to the post-test (M=4.04), indicating a statistically significant difference (t=-5.54, p<.001). Class participation increased by 0.54 points from the pre-test (M=4.28) to the post-test (M=3.74), indicating a statistically significant difference (t=-6.05, p<.001). Conclusion: The gamification class showed significant results in all sub-factors of learning immersion and class participation. This seems to have been accomplished through the use of the classdojo platform, lesson design through game mechanism strategies (points, rewards, leader boards, challenges, continuous engagement), and interaction strategies (using open chat rooms and kahoot). In the future, it is necessary to support the learning management system (LMS) in the metaverse environment and provide educational opportunities for teachers and learners.

국가별 학교평가 사례를 통해 살펴본 한국의 학교평가 개선방안 연구

정주영(Jung, Ju-Young),안영식(Ahn, Young-Sik),홍광표(Hong, Kwang-Pyo) 동북아시아문화학회 2012 동북아 문화연구 Vol.1 No.33

School evaluation was to change educational field for education customer with the voluntary inducement. School evaluation was the way to have educational accountability, to expand specialization & autonomy of each school, and to improve education through the development of educational activities. This study analyzed school evaluation with the data of international nations and domestic city & province office of education and suggested improvement strategies about school evaluation. In conclusions, first, school evaluation emphasized the importance of agreement on education community, improvement the quality of education, and the importance of close connection among the ministry of education, science & technology-city & province office of education-schools. Second, school evaluation should lighten the burden school business affairs, change provider"s school education to customer"s school education with comprehensive evaluation about educational activities, and conduct policy change for the improvement of school educational activities.