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Pd / Al2O3 의 Fluorination 이 CFC - 113 a 수소화 반응에 미치는 영향
김광수,양재춘,안병성,설용건 ( Kwang Su Kim,Jae Choon Yang,Byung Sung Ahn,Yong Gun Shul ) 한국화학공학회 1995 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.33 No.6
The effect of fluorination over Pd/Al₂O₃catalyst have been investigated in the hydrogenation of CFC-113a. Fluorinated Pd/Al₂O₃(F-Pd/Al₂O₃) catalysts showed higher conversion of CFC-113a than Pd/Al₂O₃catalysts. Fluorination treatment, from the characterization of used catalysts by XRD, TEM and EXAFS, prevented sintering of palladium particles during reaction and some parts of palladium formed a matallic state palladium as well as fluorinated Pd(Pd-F) upon fluorination. The Pd-F bonding suggested strong interaction with support which can decrease the sintering of Pd particles during reaction. Simultaneously, it was also comfirmed that γ-Al₂O₃ phase changed to AlF₃ and the surface area decreased after fluorination process.
한약재 품질관리실태에 대한 한방의료기관 종사자들의 인식도
김광수,유왕근,Kim Kwang-Su,Yoo Wang-Keun 대한예방한의학회 2003 대한예방한의학회지 Vol.7 No.1
This study was conducted to examine recognition of oriental medical doctors on the quality control of herbal medicine and to provide useful information for the establishment of effective quality control system of herbal medicine. Data were collected from 202 oriental medical doctors working in oriental medical hospitals or clinics in Daegu-Gyungbuk province. Generally, there is a tendency that most respondents have low degree of recognition, trust and satisfaction of the quality control of herbal medicine while they think standardization and complete quality control systems of herbal medicine is needed highly. Thus, in order to increase confidence of consumers in herbal medicine, and to increase the utilization of oriental medical services, both strengthening of quality control systems and standardization and establishment of Oriental KFDA as a new government agency responsible for the work should be required.
초음파분무 연소법에 의한 나노결정 ZnO 초미분체 제조
김광수,황두선,구숙경,이강,전치중,이은구,김선재,Kim, Kwang-Su,Hwang, Du-Sun,Ku, Suk-Kyeon,Lee, Kang,Jeon, Chi-Jung,Lee, Eun-Gu,Kim, Sun-Jae 한국재료학회 2002 한국재료학회지 Vol.12 No.10
For mass product of nanocrystalline ZnO ultrafine powders, self-sustaining combustion process(SCP) and ultrasonic spray combustion method(USCM) were applied at the same time. Ultrasonic spray gun was attached on top of the vertical type furnace. The droplet was sprayed into reaction zone of the furnace to form SCP which produces spherical shape with soft agglomerate crystalline ZnO particles. To characterize formed particles, fuel and oxidizing agent for SCP were used glycine and zinc nitrate or zinc hydroxide. Respectively, with changing combustion temperature and mixture ratio of oxidizing agent and fuel, the best ultrasonic spray conditions were obtained. To observe ultrasonic spray effect, two types of powder synthesis processes were compared. One was directly sprayed into furnace from the precursor solution (Type A), the other directly was heated on the hot plate without using spray gun (Type B). Powder obtained by type A was porous sponge shape with heavy agglomeration, but powder obtained using type B was finer primary particle size, spherical shape with weak agglomeration and bigger value of specific surface area. 9/ This can be due to much lower reaction temperature of type B at ignition time than type A. Synthesized nanocrystalline ZnO powders at the best ultrasonic spray conditions have primary particle size in range 20~30nm and specific surface area is about 20m$^2$/g.
김광수,Kim, Kwang-Su 한국건축역사학회 2014 건축역사연구 Vol.23 No.5
It was identified by the excavation that architecture remains were confirmed buddhist temple consist of ruins of main building of a temple, auditorium site, ruins of stone pagoda, embankment, pedestrian Facilities and drainage etc. in the Gwangmyeong-dong site. The site has been held temple arrangement with 1 main building of a temple, twin Pagodas from the Unified Silla period to Goryeo dynasty. The temple constructed after that was destroyed the architecture in the Unified Silla period. It seems that aristocrat or royalty power of within group of the nearby remains of city which was constructed in the Unified Silla period build and visit the temple. Considering there are excavations, it assumes that the temple had been constructed during the last days of the Unified Silla, was closed up during the mid-Goryeo Dynasty.
김광수 ( Kim Kwang-su ) 부산외국어대학교 지중해지역원 2022 지중해지역연구 Vol.24 No.2
The Kanem-Bornu civilization, which began to appear in the literature of Arab geographers around the 8th century, can be explained by dividing it into the Kanem Kingdom (700-1380) and the Bornu Kingdom (1380-1893). This civilization lasted from the 8th to 19th centuries and has the longest history among African civilizations. The Kanem-Bornu civilization developed as it continued to rise and fall, expanding its power from Chad to Niger, Nigeria, Algeria, and Libya. The Kanem-Bornu civilization developed by interacting with North Africa and Mediterranean through the Central Saharan Trade Route, connecting Libya and Tunisia to the central Mediterranean coast and Egypt. This trade route has existed since the Carthage or Roman times and has been used by Byzantine and Muslims. Currently, the problem in the Sahel region is being dealt with through the Central Saharan Trade Route, so it can be said that the Kanem-Bornu civilization has been historically contextualized and is still affecting the present.
김광수(Kwang su KIM) 프랑스학회 2016 프랑스학연구 Vol.75 No.-
BDK est une organisation politico-religieuse-culturelle qui a pour objectif ultime de reunir l'ancien royaume Kongo, situe a l'ouest de l'Afrique centrale dans ce qui est maintenant l'Angola, la RDC, la Republique du Congo et le Gabon. Ce groupe a ete organise par Mwanda Nsemi en 1969 afin de proteger et promouvoir la valeur et les droits des peuples Bakongo, en exigeant l'independance de la province Bakongo. Le groupe a affirme aussi la reconstruction du royaume de Congo avant la colonisation de la France. BDK est une organisation religieuse, politique et socio-culturelle. Il prend initiative des identites hybrides de mouvements democratiques de Bakongo. BDK a accru grace a la resistance du Royaume Kongo contre Leopold II pendant la domination coloniale de la Belgique, l'Eglise kimbanguiste independante africaine, et la tradition ABAKO qui a emerge au cours du processus de decolonisation. Les facteurs suivants pourraient etre pris en compte pour la formation des identites hybrides de BDK. Tout d'abord, l'identite ethnique a joue le role le plus important. Les Bakongo, principal groupe ethnique dans la province du Bas-Congo, ont acquis une identite historique et culturelle commune. En particulier, son identite linguistique et culturelle est extremement forte. Deuxiemement, les traditions de l'eglise du Portugal, nouvelle philosophie religieuse de l'eglise kimbanguiste independante africaine et le prophete Simon Kimbang ont joue role important pour la formation des identites hybrides de BDK. Troisiemement, Celle-ci est basee sur une forte conscience historique et une identite du royaume Kongo etablie par les habitants de Bakongo. Dernierement, Elle a ete influencee par la tradition ABAKO, nourri de la resistance de la domination coloniale et du processus de l'independance.