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역사적 건축물이 지니는 가치규범에 관한 연구 : 미국 Denver시를 중심으로 Centering on the City and County of Denver in U.S.A
김지민 木浦大學校 工業技術硏究所 1998 工業技術硏究誌 Vol.8 No.-
This paper is written about the present conditions, preservation's method and value of the historic buildings and districts in city and county of Denver. Historic buildings are tangible links with the past. They help give a community a sense of identify, stability and orientation. The Federal government encourages the preservation of historic buildings through various means. Denver's squandered architectural heritage led to the creation in 1967 of the Denver Landmark Preservation Commission. Denver now has 280 locally designated landmark and thirty-tow historic districts. They stabilize and enhance Denver's older neighborhoods. Landmarking is a great way to establish deeper roots and a sence of for this growing city, which is now welcoming a wave of newcomers. The ordinance created the DLPC which has nine members appointed by the Mayor, to identify structures and districts of historical, architectural, and geographical significance and to recommend to the Denver City Council that such structures and districts be designated a Denver Landmarks.
韓國 儒敎健築의 實態에 關한 硏究 : 鄕校建築을 中心으로 chiefly as viewed from architecture for the Confucian School
金知民 단국대학교 대학원 1983 學術論叢 Vol.7 No.-
When Confucianism flourished in the Yi-Dynasty which took the main principles of Confucianism as its dynastic policy, the people began at their early dynastic stage to worship Confucius and to realize architecture for Confucianism, in Seoul and rural areas, to educate the Confucian thought. This study is limited in scope only to architecture for the Confucian school, includes in contents the forming process of architecture for the Confucian school and the actual conditions of currently utilizing buildings, building sites, merely excluding overall building disposition planning and external space composition mentioned in my previous study under the tile of "A Study on the Architectural Planning in Confucian School." The data utilized for this study are derived fundamentally from the historical review by the literature, and subsquently from a questionaire poll for actual conditions for Confucian school conducted through Confucian Schools throughout the country, on the basis of which data processing, analyses and interpretations were made to effectively conduct this study.
19세기 한국 남서해(南西海) 도서지역(島嶼地域) 민가(民家)의 유형적 체계
김지민,Kim, Ji-Min 한국건축역사학회 1992 건축역사연구 Vol.1 No.1
This study is an architectural investigation paper which has been investigated for 5 years from 1986 about commoner's traditional houses and village in southwestern island area of Korea. Man has lived in this area form the prehistoric age. But from 13C to 14C and in 16C most of people had left this islands by external invasion (Japan) and from 17C many people have lived in real earnest. This area did not have cultural interchange easily than inland area because of geographical conditions, Therefore, so far, many traditional factors have been handed down and especially, a good many commoner's traditional houses exist. The time of builging of these houses is mainly 19C and building shape of those days remains nearly as it is. About 450 houses have been investigated for 5 years. The composition of the houses is composed of Anchae (a centeral house), Sarangchae (an attached house of anchae) and Chukganchae (It has rest room and stores barnyard manure). Somtimes, Sarangchae was ommitted according to the circumstance of the house. Generally, the form of arrangement of house is divided into two shapes; One is 'ㅡ'shape which has only Anchae and the other is 'ㄱ' shape which has Anchae and Sarangchae. In the scale of the house, Anchae averages $41m^2$ and Sarangchae averages $27m^2$.
하방비등조건에서 두 개의 가열면에서 형성되는 슬러그 기포가 비등열전달 계수에 미치는 영향
김지민 한국기계기술학회 2022 한국기계기술학회지 Vol.24 No.1
Double slug interaction in downward-facing nucleate boiling was studied to investigate its effect on boiling performance. Two heating surfaces were individually controlled to apply heat flux while their boiling performance were measured. A slug generated from upper heater affect on lower heater to make convectional flow by suction following departure of slug. Moreover, it showed to reduce hovering time of slug bubble on lower heater because it could help bubble departure on lower heater. Meanwhile, a slug generated from lower heater affected on upper heater to make convectional flow by sweeping. However, it showed to increase hovering time of slug bubble on upper heater, because they collapsed to each other. So, the slugs from lower heater enhanced the boiling performance of upper heater with low heat flux condition, but reduced the performance of it with high heat flux condition.
고염/고방사성 폐액 내 Cs 제거를 위한 복합 흡착제 합성 및 특성 연구
김지민,이근영,김광욱,이일희,정동용,문제권,현재혁 한국방사성폐기물학회 2017 방사성폐기물학회지 Vol.15 No.1
For the removal of cesium (Cs) from high radioactive/high salt-laden liquid waste, this study synthesized a highly efficient composite adsorbent (potassium cobalt ferrocyanide (PCFC)-loaded chabazite (CHA)) and evaluated its applicability. The composite adsorbent used CHA, which could accommodate Cs as well as other molecules, as a supporting material and was synthesized by immobilizing the PCFC in the pores of CHA through stepwise impregnation/precipitation with CoCl2 and K4Fe (CN)6 solutions. When CHA, with average particle size of more than 10 ㎛, is used in synthesizing the composite adsorbent, the PCFC particles were immobilized in a stable form. Also, the physical stability of the composite adsorbent was improved by optimizing the washing methodology to increase the purity of the composite adsorbent during the synthesis. The composite adsorbent obtained from the optimal synthesis showed a high adsorption rate of Cs in both fresh water (salt-free condition) and seawater (high-salt condition), and had a relatively high value of distribution coefficient (larger than 104 mL·g-1) regardless of the salt concentration. Therefore, the composite adsorbent synthesized in this study is an optimized material considering both the high selectivity of PCFC on Cs and the physical stability of CHA. It is proved that this composite adsorbent can remove rapidly Cs contained in high radioactive/high salt-laden liquid waste with high efficiency. 본 연구에서는 고염/고방사성 폐액 내 함유된 주요 고방사성핵종인 Cs 제거를 목적으로 고효율의 복합 흡착제(potassium cobalt ferrocyanide (PCFC)-loaded chabazite (CHA)) 합성 및 이의 적용성을 평가하였다. 복합 흡착제는 Cs을 비롯한 다른 입자를 수용할 수 있는 CHA를 지지체로 선정하였으며, CoCl2 및 K4Fe(CN)6 용액의 단계적인 함침/침전을 통해 PCFC를CHA 세공 내에 고정화함으로써 합성하였다. 복합 흡착제의 합성 시 평균 입자크기가 10 ㎛ 이상의 CHA를 지지체로 사용할경우, PCFC 입자는 안정적인 형태로 고정화되었다. 또한, 합성 시 복합 흡착제의 정제를 증가시키는 세척 방법을 최적화함으로써, 복합 흡착제의 물리적 안정성이 향상되었다. 최적의 합성법을 통해 얻은 복합 흡착제에 의한 Cs 흡착 시, 담수(무염조건) 및 해수(고염 조건)에서 모두 빠른 흡착 속도를 보였으며, 염 농도와 무관하게 비교적 높은 분배계수 값(104 mL·g-1 이상)을 나타내었다. 그러므로, 본 연구에서 합성한 복합 흡착제는 CHA 및 PCFC가 각각 가지고 있는 물리적 안정성과 Cs 에 높은 선택성 등을 고려하여 촤적화한 소재이며, 고염/고방사성폐액에 함유되어 있는 Cs을 고효율로 신속하게 제거할 수있음을 알 수 있다.