그리스도인의 가정상담에 관한 연구 : 부부의 갈등을 중심으로 /김기환 저

김기환 서울신학대학교 1987 국내석사

공항철도의 이용의도에 관한 연구 : 효용과 만족의 매개효과

김기환 한국교통대학교 교통대학원 2022 국내석사

서울과 인천국제공항을 빠르게 연결하기 위한 교통의 허브역할을 기대하면서 착공된 공항철도는 2007년 3월, 역사적인 첫 개통을 시작하였다. 그러나 기대와는 달리 인천국제공항에서 김포공항까지만 연결된 짧은 노선과 공항버스와의 편리성 비교 및 통합환승할인제도 미적용 등으로 인해 이용자 입장에서는 큰 불편함이 많았고, 그 결과 하루 이용객이 1만3천명 수준에 머무르면서 공기 수송열차 등의 오명을 뒤집어썼으나 2010년 2단계 전 구간 개통을 시작으로 비약적인 발전을 이루면서 하루 최대 이용객 또한 약 32만명이 될 정도로 엄청난 성장을 이루었다. 이러한 발전을 계속 유지하기 위해서는 공항철도를 이용하는 이용객을 대상으로 공항철도 이용의도에 대해 더욱 심도 있는 연구가 필요하였고, 이에 대해 본 연구에서는 공항철도의 효용과 만족의 매개효과를 토대로 안전성, 정시성, 쾌적성, 공급성, 차별성이 공항철도의 이용의도에 어떠한 영향을 미치는지 알아보고자 한다. 연구 결과, 안전성과 정시성은 효용과 만족도에 긍정적인 영향을 미쳤으며 쾌적성 또한 효용과 만족도에 긍정적인 영향을 미쳤고, 공급성과 차별성 또한 효용과 만족도에 상당히 긍정적인 영향을 미치는 것으로 연구결과 밝혀졌다. 그리고 효용은 만족과 이용의도에 긍정적인 영향을 미쳤으며, 이를 토대로 만족 또한 이용의도에 상당히 긍정적인 영향을 미치는 것으로 연구결과 밝혀졌다. 본 연구의 결과로 살펴보면 안전성, 정시성, 쾌적성, 공급성, 차별성을 토대로 효용과 만족의 매개효과를 통해 결론적으로는 공항철도 이용객의 이용의도에 긍정적인 영향을 미친다는 것을 연구를 통해 알 수 있다.

플라이 애시를 사용한 EPS 경량콘크리트의 물리적 성질에 관한 실험적 연구

김기환 건국대학교 산업대학원 2012 국내석사

산업 부산물 중 화력발전소에서 발생되는 플라이 애시와 산업폐기물인 폐 EPS를 사용함으로써 산업폐기물의 재활용, 시멘트 사용량 감소에 따른 탄소 배출량 저감, 낮은 밀도에 의한 패널의 단위질량 감소, 원가절감 등 환경 친화적인 패널생산기술 확보를 가져올 것으로 기대된다. 본 연구에서는 발포 폴리스티렌 경량콘크리트 패널의 구성요소 중 내부 심재에 산업 부산물인 폐 EPS와 플라이 애시를 활용하여 경량복합패널의 적용 가능성을 파악하기 위한 실험으로 콘크리트 제조 시 굳지 않은 콘크리트 및 굳은 콘크리트의 물리적 성질을 정량적으로 평가 및 분석하여 다음과 같은 결론은 얻었다. 플라이 애시 치환율이 증가함에 따라 굳지 않은 콘크리트의 슬럼프는 감소하고 단위용적질량은 증가하며, 굳은 콘크리트의 압축강도, 기건 단위용적질량, 열전도율은 재령 7일 이후 포졸란 반응에 의한 공극충진 효과로 인해 플라이 애시 치환율 20%에서 가장 높은 값을 나타냈으며 치환율 증가에 따라 감소하는 경향을 나타났다. 흡수율은 반대로 플라이 애시 치환율 20%에서 가장 낮은 값을 나타냈으며 플라이 애시 치환율 증가에 따라 흡수율도 증가하는 것으로 나타났다. 플라이 애시 치환율 40%까지는 압축강도 증진 효과가 있는 것으로 나타나 최대 치환율을 40%까지 사용할 수 있을 것으로 판단되었다. 최대 압축강도 7MPa를 갖는 낮은 강도의 EPS 경량콘크리트에서 에트링가이트 생성에 의한 공극충진 효과에 의해 초기 강도증진에 효과가 있는 CSA 혼화재는 큰 효과를 가져오지 못했으며, 굳지 않은 콘크리트 및 굳은 콘크리트의 품질변화에 큰 영향을 끼치지 않은 것으로 나타났다. 기존 문헌에서 초기 강도증진 효과가 있다고 보고하였으나 CSA는 저강도 콘크리트에서는 효과가 없는 것으로 판단되었다.

네트워크 기반(URC) 로봇산업의 발전전략의 연구

김기환 인하대학교 공학대학원 2010 국내석사

토끼에 있어 혈압변동에 따른 레닌-안지오텐신 활성도의 변화

김기환 서울大學校 大學院 1974 국내박사

제7차 敎育課程 政策過程에의 參與集團의 活動과 主張 分析

김기환 慶南大學校 2002 국내박사

바오로와 그 이전 그리스도론적 전승 : 로마1,3-4을 중심으로

김기환 대구가톨릭대학교 대학원 2010 국내석사

In this thesis I will talk about pauline and pre-pauline christological traditions based on Rom 1:3-4. By suggesting the relations between paul and pre-pauline christological traditions through this study, I want to clarify the unique and theological meaning which pauline Christology has and historical position of tradition Criticism. Pre-pauline christological traditions needed the refusal to jewish Messianism and theological review on all aspects revealed after Resurrection of Jesus including the life of Jesus. Hellenism had to be also refused. Christological titles in pre-pauline christological traditions were accepted by the early christian Community. The titles like 'Seed of David' and 'Son of God' reveal the continuity and conformity of God's promise for salvation and show the role of Jesus as Messiah who accomplishes God's salvific promise and the divine origin of Jesus as ‘Son of God’. Meanwhile, pre-pauline christological traditions keep the intrinsic meaning which messianic titles given to Jesus have and, at the same time, have the limitation that political and national characters of messianic thoughts of Judaism should be differentiated from panthesistic Hellenism. By forming the Formula in Rom. 1:3-4, we can know Paul shows the comprehensive understanding of his Jesus. Based on 'His son' and 'Jesus Christ our Lord', he accepted pre-pauline christological traditions. The parallel of 'Son of God' and 'Seed of David' is first of all synthesized into 'His son' and confirmed into 'Jesus Christ Our Lord'. Through this paul makes the messianic thoughts of Judaism 'Seed of David' of pre-pauline traditions had revealed in 'Jesus Christ Our Lord'. And by suggesting 'Jesus' who is the Lord for all and has the ability of salvation for all believers, Paul transcends this. 'Son of God' shown in traditions reveals messianic aspect shown as Resurrection and as the parallel of 'Seed of David' the meaning can be relativized. However, by suggesting Jesus as 'His son', Paul transcends the title, 'Son of God' and generalizes the meaning of the titles, 'Seed of David' and 'Son of God' and reveals 'Son of God' who is transcendent and really existent. In the Formula of Rom. 1:3-4, Paul suggests the titles for Jesus. It shows the mystery of continuity and conformity of God in salvific history. Paul knows well the dangers of messianic thought of Judaism which 'Seed of David' and 'Son of God' have. However, he could not give up these titles because he was very confirmed of the mystery of continuity and conformity of God's salvific history shown in Jesus. We can find this confirmation in suggesting with the titles of 'Christ' and 'Lord'. This is revealed in his self-awareness as 'Servant' and 'Apostle'. In Rom. 1:16-17, with some quotations from the Old Testament, Paul suggests God's salvific ability as 'Gospel' and to him 'Gospel' is 'Jesus' himself. By showing Jesus' unique characteristic which these titles reveal in Rom. 1:3-4, Paul expresses Jesus who completely reveals God's salvific history. In conclusion, in the Formula, Rom. 1:3-4, by keeping inherent meaning of titles given to Jesus since pre-pauline christological traditions, Paul tried to synthesize the continuity and conformity in God's salvific history. With this trial, Paul transcends the limitation of Pre-Pauline Christology and reveals the full 'Persona' of Jesus. Accordingly, we can say Paul started 'Christology' authentically.

Porous Anodic Alumina (PAA) Processing, Characterization for The Organization of Carbon nanotubes and Silicon Nanowires

김기환 경희대학교 대학원 2010 국내석사

This report is a study on the porous anodic alumina (PAA) for the application to electronic devices such as field effect transistors (FETs), interconnectors, field emitter arrays (FEAs) using carbon nanotubes (CNTs), silicon nanowires (NWs) or other metal, semiconductor nano arrays as a template. Typically, two types of anodic aluminium oxide exist, one is barrier-type anodic alumina and the other one is porous-type anodic alumina. In this report, we focused on porous-type anodic alumina which is called simply porous anodic alumina (PAA), and we would like to utilize to practical application this PAA structures. At first, we investigated about various anodization factors which are influencing on the characteristics of PAA in order to fabricate desired porous structure. Generally, influencing factors on anodization are known that these are anodization voltage, temperature, and electrolyte concentration, and if we control these factors, we can modify the pore features such as pore diameter, interpore distance, pore length (height), pore ordering, pore density, and so on. Then, with these results, we were trying to make several structures which are able to be applied to electronic device application as a template. Besides, not only vertical-type PAA, but also lateral-type PAA which has planar type anodic alumina structure were investigated. In general, lateral PAA has also same processes and characteristics with vertical PAA, but there are several differences such as a capping layer, spatially constrained effect, a current leakage problem and so on. Thus, we investigated the influencing factors in same manner with vertical PAA case in order to know about lateral PAA. For the application to practical electronic devices, the study on anodization has to be carried out exactly, and the electrodeposition method and CNTs or NWs growth have to be investigated. In other words, lots of investigations on PAA are necessary. Measurements on anodization were characterized by measuring the current-time curves, and pore features were characterized by field enhanced scanning electron microscopy (FESEM).

해수중 음극방식용 희생양극 성능 시험법의 비교 연구

김기환 한국해양대학교 2010 국내석사

Cathodic protection(CP) with coating is well established and applied to mitigate the corrosion of ships, ocean structures and many other facilities. The CP is subdivided into two techniques, i.e., impressed current CP(ICCP) and sacrificial anode CP(SACP). In the case of large on- and off-shore structures, the later is preferential since it is hard to obtain the power sources for protection in remote marine circumstances. In the SACP, normally zinc and aluminum anodes are used in the form of alloy mixed with so-called, activation elements both to prevent passivation on anode surface and to enhance efficiency of its performance. Especially the aluminum anodes are remarkably influenced by the activation elements, like zinc and indium, as well as the manufacturing process of alloying. Consequently, performance (efficiency) test of anode is very important for a long-term protection of structures in seawater which is known as the most corrosive environment in natural condition. Many countries have their own standard for testing sacrificial anodes, and some standards are well recognized internationally. However, the test results between those standards are not well agreed. There are few studies regarding the comparison of sacrificial anode test methods. In this study three standards, i.e. KS(Korea), NACE(US) and DNV(Norway), have been selected to compare the performance of zinc and aluminum anodes, and short-term laboratory performance experiments have been conducted. Some electrochemical characteristics have been investigated and anode efficiencies have been compared. The results of these performance tests were as follows ; 1. The performance test results of sacrificial anodes among three standards were significantly different. 2. In all three standard tests, the efficiency for Al anode was much lower than that for Zn, which is assumed due to the passivation of Al anode surface. 3. The order of anode efficiency for three standards was NACE(mass) > KS > DNV > NACE(H2) for Zn anode, and DNV > KS > NACE(mass) > NACE(H2) for Al. 4. The possible reasons for the discrepancy/error between the standards may include not only the test period & the applied current density in regulations, but also the coulometer treatment and the removal of corrosion products from anode surface after experiment.

과학관을 활용한 직무연수 실시 방안 연구

김기환 공주대학교 2010 국내석사

ABSTRACT Development of In-Service Education with Science Center Kim, Ki Hwan Department of Physics Education Graduate School, Kongju National University Kongju, Korea (Supervised by Professor Keeju Jung) The purpose of this research is to reform the reality that science education is not centered on inquiry. As a solution, I suggest the plan for establishing courses of in-service education and administrating them, utilizing exhibitions from science museums. For the purpose, I surveyed teachers' demands referred to literature records, did on-the-spot probes, held interviews with specialists, and found out the present state of researches about in-service education and science museums' education programs. Through this research, I reached the following conclusions. 1) Conclusion of the research about the types, training times and ways of currently administrated in-service education courses (relevant to science) Daejeon Metropolitan Office of Education enforces in-service education in different fields, such as experiment, improvement of school lessons, astronomy, meteorology, ultramodern science, life science, basic science, talented students, invention. Also, Seoul Science Park classified in-service education into some type : in-service education for professional improvement in subject, in-service education for supports school science and gifted student's education, in-service education by consumer's request, and operate them. Generally, training time is 15~30 hours and below, and it is administered during summer/winter vacations or at nights during the semester. 2) The way to operate educational programs in Domestic or foreign Science centers, and their suggestions. The in-service education programs of domestic science centers usually put emphasis on the explanation of samples that are on display. In contrast, foreign science centers carries out programs in various methods and forms, usually focused on ways to improve teacher's professional quality. The programs of domestic centers have demerits such as the insufficiency of in-service education programs, the lack of opportunities for developing teaching material and discussion between teacher. However, the programs of foreign science centers are being very suggestive in that they are participation programs that use various materials, are educated through enough time and are based on practices, experiments, and discussions. 3) Administrative plans for in-service education with science centers National Science Museum is the most appropriate place for in-service education according to the inspection standards, and the normal course (30 hours) should be held during summer and winter vacations. The objects of this education are science teachers in duty in elementary and middle schools in adjacent areas such as Daejeon and Chungnam, Chungbuk. The contents should be based on general understandings of the center, methods to give explanation on the center's exhibition, experiencing samples and learning basic principles, designing teaching and learning plan, and debating. Based on these research, if the in-service education with science centers is operated, it would bring positive effects to science centers, teachers, and students all together.