화상처리를 이용한 PCB 스크린 인쇄기의 정밀 오차측정 및 보정에 관한 연구

김천환 금오공과대학교 대학원 2000 국내석사

總資産利益率의 평균회귀성향에 관한 연구

김천환 영남대학교 대학원 2003 국내박사

바람직한 지방행정구조 개편에 관한 연구

김천환 충북대학교 행정대학원 2006 국내석사

This study examines the area and hierarchy structure of the local administration that constitute the fundamental part for the local administration system in Korea, and studies the appropriate reorganization of its structure with regard to social change and development. In addition to looking into the examples of foreign countries which are ahead of us in the system and operation of the local administration, we make the opportunity compare and analyze plans for the reorganization of the local administration system fitting into the global change about it. It was carried out under the purpose of seeking the best one for local government in Korea along the current trend. It would enable us to vitalize the roles of the local autonomous government. Especially multilateral analysis was used to find out favourable ways, currently discussed, to reorganize the local administration structure. They were based on the practical survey about general awareness from the members of the local administration such as local residents, public officials and the persons concerned with civil and social organization. Furthermore, this study became an beginning to distinguish the degree of actual awareness on the conflicted point about reorganization of the hierarchy structure. Public officials working in the local and metropolitan autonomous organizations took part in the survey, which was examined by same kind of questionnaire. It was performed by 3 categories; for the local administration, awareness about hierarchy structure, awareness about area reorganization and awareness about structure reorganization. Consequently, this research attempted to accomplish the awareness establishment and detailed opinion survey about the reorganization of the local administration system. Based on the results, it tried to find out the favourable ways to reorganize the structure of the local administration for the future after checking the example of 'JeJu Special Autonomous Province' which succeeded to change the hierarchy structure of the domestic local administration, and both studies about reorganizing of former administration area and leveling of hierarchy structure. For the research, firstly, I considered the awareness about hierarchy structure and area reorganization of the local administration with their types. Diverse theoretical logic, its correlation and the corresponding strategies about it were previously checked as well. Secondly, under this former one, I substituted some plans concerned with hierarchy, area and structure organization. Besides, I analyzed collected data from the survey about actual awareness of public officials in the field. Thirdly, I suggested actual awareness model through comprehensive arrangement procedure which was related to the actual analyses of awareness about general characteristics of research object and favourable reorganization about the local administration structure. Fourthly, I hope that this empirical analysis helps bring new light upon the plans to reorganize the structure and area of the our local administration to be discussed later in this research. This consists of 5 chapters. Necessity, goal, scope and ways of this research are shown in the 1st chapter. The 2nd chapter through the 4th is composed of main research contents. For favourable ways to reorganize the structure of the local administration, in the 2nd chapter, there is the frame of research analysis after theoretical backgrounds like the types of hierarchy and area, plans to reorganize, procedure of the structure changes and foreign structure of the local administration. In the 3rd chapter, research design, questionnaire construction and the ways of data analysis for reorganization are suggested. Comprehensive arrangement procedure about the result of awareness analysis was performed as well as actual analysis of research object. In the 4th chapter, I emphasized the plans for the hierarchy and area of the local administration along 'the favourable ones to reorganize the structure of it'. In the last chapter, I made the conclusion about them, based on the results above.

제주지역 참다래원 영양진단에 관한 연구

김천환 濟州大學校 大學院 1997 국내석사

濟州地域 참다래園의 營養診斷을 통해 참다래 樹體內 營養狀態틀 파악하여 施肥基準을 설정하기 위해 연구한 결과를 要約하면 다음과 같다. 1. 참다래의 葉分析 시기 결정을 위해 시기별 葉內 成分 變化를 조사한 결과 7월 중순∼8월초가 葉採取에 알맞은 기간이었다. 2. 濟州地域 참다래 葉內 無機成分 平均 含量은 질소 2.74, 인산 0.20, 칼리 1.91, 칼슘 1.91, 마그네슘 0.51%, 철 147.0, 망간 160.1, 아연 54.0㎍/g 이었다. 3. 濟州地域 참다래 葉內 無機成分 含量의 豫想 臨界値를 設定하여 정상 범위를 구한 결과 질소는 2.5-3.0, 인산은 0.16-0.24, 칼리는 1.80-2.0, 칼슘은 1.95-2.63, 마그네슘은 0.39-0.63%였다. 4. 참다래 葉內 無機成分별 農家分布를 조사한 결과 질소는 54.7, 인산은 65.0, 칼리는 52.9, 칼슘은 38.8, 마그네슘은 70.2%의 농가가 정상범위에 있었다. 5. 참다래 葉柄內 無機成分 含量은 질소 1.6, 인산 0.28, 칼리 5.03, 칼슘 2.07, 마그네슘 0.93%, 철 107.0, 망간 122.0, 아연 63.2㎍/g이었다. 葉柄 成分 含量과 葉成分 含量은 고도로 有意한 正의 相關關係를 보였다. 6. 濟州地域 참다래원 土壤의 理化學性은 pH 5.46, 有機物 9.69%, 有效燐酸 220.7㎍/g, 置換性 칼리 1.1, 칼슘 4.1, 마그네슘 1.48, 양이온 치환용량 16.18me/100g이었다. 7. 非火山灰土壤이 火山灰土壤보다 葉內 인산과 칼리함량이 높았고 토양 pH와, 有效燐酸 含量이 높았으며 수량도 많았다. 8. 비화산회토양에서 pH와 수량은 고조로 유의한 正의 相關을 보였다.(r=0.38**). 9. 화산회토양에서 수량은 葉內의 多量元素 모두와 葉柄內 인산 및 칼리 함량과 고도로 유의한 正의 相關을 보였고 土壤의 有機物과 有效燐酸 및 양이온 치환음량과는 負의 相關을 보였다. 10. 비화산회토와 화산회토 모두 토양의 有效燐酸과 葉內 燐酸 含量은 고도의 正의 相關을 보였으며 화산회토양에서는 土壤有機物 含量은 葉內 窒素 含量간에 고도로 有意한 負의 相關을 보였다. 11. 엽내 질소함량과 엽색 사이의 상관계수는 시기에 따라 달라졌는데 8원5일에 가장 켰다(r=0.77**). The nutritional of the kiwifruit (Actinidia deliciosa var. deliciosa 'Hayward') trees in 110 orchards were examined through leaf and petiole analysis for 3 years from 1994 to 1996 in Cheju island. The results obtained are summarized as follows : 1. The suitable time for sampling were from July 20 to August 20 when the concentration of macro nutrient elements was variable least. 2. The average contents of leaf elements in 'Hayward' kiwifruit were as follows; N 2.74, P 0.20, K 1.91, Ca 1.91, Mg 0.51%, and Fe 147.0, Mn 160.1, Zn 54.0㎍/g. 3. The estimated critical levels of 'Hayward' kiwifruit leaf for macro nutrients were as follows; N 2.5∼3.0, P 0.16∼0.24, K 1.80∼2.44, Ca 1.95∼2.63, and Mg 0.39∼0.63%. 4. The percentage of kiwi orchards shown to be between the estimated critical levels for leaf macro elements were 54.7 for N, 65.0 for P, 52.9 for K, 38.8 for Ca, and 76.2 for Mg. 5. The average contents of petiole nutrient elements in 'Hayward' kiwifruit were as follows; N 1.6, P 0.28, K 5.03, Ca 2.07, Mg 0.93%, Fe 107.6, Mn 122.6, Zn 63.2㎍/g. Highly positive correlation was recognized between contents of petiole and leaf elements. 6. The soil chemical properties of kiwifruit 'Hayward' orchards were as follows; pH 5.46, OM 9.69, available P_(2)O_(5) 220.7ppm, K 1.1, Ca 4.91, Mg 1.48, CEC 16.18me/100g. 7. Contents of P and K and in leaf, pH and available P_(2)O_(5) of soil and yield were higher in non-volcanic ash soil than in the volcanic. 8. Yield was positively correlated with soil pH in non-volcanic ash(r = 0.38**). 9. In volcanic ash soil yield was correlated with contents of all macro elements in leaf, P, K in petiole at 1% level, while negatively correlated with contents of organic matter and available P_(2)O_(5) and CEC of sail. 10. Contents of P in leaf was positively correlated with that of available P_(2)O_(5) in both non-volcanic and volcanic ash soil, whereas contents of N in leaf negatively with that of organic matter in volcanic ash soil. 11. Correlation coefficients between content of N in leaf and leaf color were calculated to be variable during seasons with the highest on August 5.

排水施設의 設計를 위한 水稻의 冠水深 및 冠水被害率 決定에 對한 硏究

김천환 建國大學校 1982 국내석사

군 조직의 의사소통에 미치는 영향에 관한 연구

김천환 인천대학교 행정대학원 2008 국내석사

진경산수화를 통해 본 풍경사진의 표현에 대한 연구

김천환 광주대학교 대학원 2013 국내석사

The Chinese painter Zongbing(宗柄) once said “I will live my life in a leisurely way(臥遊), purifying my spirit and contemplating nature.” He believed that one could cultivate and develop one’s mind through visualizing the spirit of nature. Our ancestors painted this spirit after experiencing it through peaceful reflections on the landscapes around them. They enlightened themselves morally and religiously through their art. The piece titled “Jingyeong Sansu Hwa(眞景山水畵),” translated in English to “The Real Landscape Painting,” was created during the late Joseon dynasty, and is an eloquent expression of the peoples’ dreams of freedom during a time of struggle and suffering. The noblemen in this era were engaged in power struggles as their country underwent vast social changes, and the paintings they produced were a way to escape the turmoil and find peace. These paintings were desired and appreciated by many aristocrats. My work, “Perfect Mind” echoes these desires; the series is meant to show that photography is not only an object of appreciation, but something larger. It is a gateway to metaphysical freedom and to viewing time and space without constraints. Using the medium of photography, “Perfect Mind” reproduces landscape art and this transcendental spirit of nature. The world today is plagued by many crises caused by the discord between nature and humanity. This harmony between the earth and man is not beyond human reach, though, and “Perfect Mind” poignantly expresses this worthy pursuit, which is so often lost in our day-to-day lives. Reproducing this ideal harmony in one’s photographs is only possible when the artist himself is at peace. He must be prepared to interpret the scenes before him, which is a futile effort if he is still engaged in the conflicts of the world. In other words, to achieve the Perfect Mind, one must be wholly at peace. The mind must abandon bias and emotional agitation so that one can see the bigger, essential meaning of the universe. Human beings are insignificant when considered against the background of all of time and space. The elements of sky, earth and animals are all significant parts of this enormous world, yet how often does one stop to consider them. Observing these fundamental parts of earth, as they live and die in the realm of mother nature, is one way to find true peace of mind. Having attained this peaceful mind has granted me the opportunity to make “Perfect Mind” and share it with the world. The philosophy of “wayu(臥遊)” loosely translates in English to “living in a leisurely way,” and was a huge influence on me. If one portrays the contemporary world with this old-fashioned style of scenic pictures, one runs the risk of seeming trite and stale. However, all the sorrows of this busy, consumerist, modern society are displayed in this one, single piece of work. The nature landscapes shown in “Perfect Mind” are a purposeful mixture of harmony and balance, thus enabling a discussion on photography as a medium with a sole objective: the objective to live a life of balance. I believe that one can overcome many obstacles by keeping one’s mind tranquil and in harmony with nature. The integration of the natural world and the human world is the final goal. Calming one’s mind and coexisting with nature are the keys to living peacefully in this harsh, materialistic world. Only then can one extend this peace to the people all around, and truly enjoy the serenity of the Perfect Mind. “Perfect Mind” is landscape photography that undertakes to free modern people from the noise of everyday life, and from time and space themselves. It presents Korea’s landscapes in diverse, unique ways but nevertheless falls short of my ultimate goal or transcending time and space. The work is optimistic, and looks at the world with hopeful lenses. My future goal is to continually see the world in a positive light, and to continue my efforts to record the unrecognized harmony in nature that is all around me.

Ganoderma屬菌의 培養的 特性과 RAPD(Random Amplified Polymorphic DNA) Marker 分析

김천환 江原大學校 大學院 1994 국내석사

Eleven fruit bodies ot Ganoderma sp. were collected from eight locations throughout the forest of Kangwon Do and Kyunggi Do Yungcheon Gun in Korea. The hosts in forest were cut trunks of Quercus dentata, Q. variabilis, Prunus peria and Alnus japonica that was newly surveyed. but 5 isolates are collected at the frame of Ganoderma mushroom. Most fruit bodies were formed solitarily on the cut trunks but GS-106 isolate grown in crowds on cut trunk of Alnus japonica. Optimum temperature ranges and for isolates of species studied were : G. applanatum 28℃-30 C, G. lucidum 28-30℃, G. neo-japonicum 28 ℃, and G. tsuage 26℃ and all the species grew slowly at the 32℃. Hamada medium which concentrated on pH 4.5 to 6.2 is better than others for mycelial culture. Mycelial morphological characteristics of six species were studied: G. applanatum(AP-001), G. lucidum(GL-001) and G. tsuage(TS-001) produced typical type staghorn hyphae but isolates of G. valeosiacum(VL-001) are not same staghorn hyphae of type which is a branched duster form and cluster form of G. neo-jeponicum(NJ-001). And isolates of G. applanatum(AP-001), G. Iucidum(GL-001), G. oregonanse(OR-001), G. tsuage(TS-001) and G. valeosiacum(V/L-001) are present at clamp connecton except G. neo-japonicum(NJ-001) that was node type and chlamydospore was produced at isolates of - G. applanatum(AP-001), G. neo-japonicum(NJ-001). and cuticular cells are present G. Iucidum(GL-001), G. neo-japonicum(NJ-001), G. oregonense (OR-001) and G. tsuage(TS-001). However G. applanatum and G. valeo- siacum did not produce. Random Aamplified Polymorphic DNA(RAPD) marker assay of twenty-five isolates including three isolates of G. applanatum, eleven isolates of G. Iucidum, three isolates ot G. neo-japonicum, one isolates of G. oregonense, two isolates of G. tsuage and five isolates of Ganoderma species that were collected from various region through Korea, Japan, USA and New guinea. were studied for systematic identification mediated by Taq DNA polymerase chain reaction. The interspecific Dice's similarity values were calculated about 0.6 to 0.8 within genus Ganoderma species. But it did not enough to identify the isolates of G. Iucidum because the similarity value(from 0.803 to 0.561)was broader than other interspecific similarity values. And interaction reaction with G. lucidum and Ganoderma spp. on 4% PDA medium did not identify within G. Iucidum and G. tsuage. But it is identified by RAPD marker assay.