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논문 : 리튬용융염에서 플라즈마 용사된 부분안정화 지르코니아 코팅층의 고온부식 거동
조수행 ( Soo Haeng Cho ),홍순석 ( Sun Seok Hong ),강대승 ( Dae Seong Kang ),박병흥 ( Byung Heong Park ),허진목 ( Jin Mok Hur ),이한수 ( Han Soo Lee ) 대한금속재료학회 ( 구 대한금속학회 ) 2008 대한금속·재료학회지 Vol.46 No.10
The electrolytic reduction of spent oxide fuel involves the liberation of oxygen in a molten LiCl electrolyte, which results in a chemically aggressive environment that is too corrosive for typical structural materials. It is essential to choose the optimum material for the process equipment handling molten salt. IN713LC is one of the candidate materials proposed for application in electrolytic reduction process. In this study, yttria-stabilized zirconia (YSZ) top coat was applied to a surface of IN713LC with an aluminized metallic bond coat by an optimized plasma spray process, and were investigated the corrosion behavior at 675℃ for 216 hours in the molten salt LiCl-Li2O under an oxidizing atmosphere. The as-coated and tested specimens were examined by OM, SEM/EDS and XRD, respectively. The bare superalloy reveals obvious weight loss, and the corrosion layer formed on the surface of the bare superalloy was spalled due to the rapid scale growth and thermal stress. The top coatings showed a much better hot-corrosion resistance in the presence of LiCl-Li2O molten salt when compared to those of the uncoated superalloy and the aluminized bond coatings. These coatings have been found to be beneficial for increasing to the hot-corrosion resistance of the structural materials for handling high temperature lithium molten salts.
조수선,이동우,한동원,황치정,Cho, Soo-Sun,Lee, Dong-Woo,Han, Dong-Won,Hwang, Chi-Jung 한국정보처리학회 2002 정보처리학회논문지B Vol.9 No.6
Although image occupies a large part of importance on the Web documents, there have not been many researches for analyzing and understanding it. Many Web images are used for carrying important information but others are not used for it. In this paper classify the Web images from presently served Web sites to erasable or non-erasable classes. based on machine learning methods. For this research, we have detected 16 special and rich features for Web images and experimented by using the Baysian and decision tree methods. As the results, F-measures of 87.09%, 82.72% were achived for each method and particularly, from the experiments to compare the effects of feature groups, it has proved that the added features on this study are very useful for Web image classification. HTML 페이지로 대표되는 웹 문서에서 이미지는 매우 큰 비중을 차지하고 있지만 이에 대한 분석 및 이해에 관한 연구는 활발하게 진행되지 못하고 있다. 여러 가지 웹 이미지들은 중요한 정보를 전달하기도 하지만 그렇지 않은 것들도 있다. 본 논문에서는 현재 서비스중인 인터넷 사이트의 웹 이미지들을 수집하여 기계학습(machine learning)에 기반한 분류(classification)론 통해 제거 가능한 이미지와 제거 불가능한 이미지의 두가지 클래스로 분석해 본다. 이를 위해 16개의 독특하고 풍부한 웹 이미지 특징들을 발굴하고 베이지안 기법과 결정 트리 기법을 사용하여 실험하였다. 그 결과 각각의 기법에서 87.09%, 82.72%의 F-measure 값을 얻었으며 특히, 특징 그룹의 비교 실험을 통해 본 연구에서 추가한 특징들이 매우 유용한 것임을 입증하였다.
한국 연안에 출현하는 무각와편모조류 5종에 대한 형태 및 분자계통학적 특성
조수연,기장서,한명수,Cho, Soo-Yeon,Ki, Jang-Seu,Han, Myung-Soo 한국조류학회(藻類) 2008 ALGAE Vol.23 No.1
Many species in Gymnodiniales, which are unarmored dinoflagellates, are responsible for marine algal blooms and some of them have potent toxin in the cell. Their taxonomy has so far been well-defined, and several genera (e.g. Akashiwo, Gymnodinium, Karenia) have recently been re-described. In Korea, few works have been carried out on their taxonomical and molecular studies. This study focused on comparison of both morphological and molecular characteristics of five unarmored dinoflagellates on Korean coastal water: Akashiwo sanguinea, Cochlodinium polykrikoides, Gymnodinium catenatum, Gymnodinium impudicum and Karenia aureolum (=K. mikimotoi). Morphological characteristics observed here was in good accordance with the original descriptions of individual species. In addition, none of difference was found in morphological comparisons between the Korean and foreign strains. Furthermore, molecular analysis showed that the SSU rDNA sequences were generally identical according to each species. In some distinct features, A. sanguinea, which has generally the same morphological features, were divided into two groups: one was Korean isolates including European isolates, the other was American isolates. In the two groups, the nucleus was positioned differently: middle of the cells in the Korean isolates (GnSg02, GnSg03), near the epicone in American isolates (CCMP1593, CCMP1837). In addition, this was strongly supported by phylogenetic analysis, inferred from the SSU rDNA sequences. K. aureolum (GrAr01) was corresponded to European G. aureolum (=K. mikimotoi) in shape and position of nucleus, chloroplast, however, which is similar to K. digitata in view of having a finger-like sulcus. This was in good agreement with phylogenetic study of these species. G. catenatum have identical morphology except the ridge location, and their genotype of SSU rDNA was also identical to GenBank data of the same species. From this study, we found that the five Korean unarmored dinoflagellates are identical morphological characteristics and genotype to each species of foreign isolates.
아급성 괴사성 림프절염 - 세침흡인 세포검사로 진단된 3예 보고 -
조수연,조민선,김성숙,구혜수,한운섭,정성민,Cho, Soo-Yeon,Cho, Min-Sun,Kim, Sung-Sook,Koo, Hye-Soo,Han, Woon-Sub,Chung, Sung-Min 대한세포병리학회 1994 대한세포병리학회지 Vol.5 No.1
Three cases of subacute necrotizing lymphadenitis diagnosed by fine needle aspiration (FNA) of enlarged lymph nodes are reported. The FNA smears contained randomly activated lymphoid cells, necrotic debris and histiocytes. The same patterns were found in subsequently examined excised lymph nodes from these cases. The differential diagnosis of this entity is discussed and the value of preparing FNA cell blocks and accompanying AFB stain with culture is emphasized. FNA may be able to provide a diagnosis in case of this benign disease, therefore avoiding a more traumatic excisional biopsy.
한국산 와편모조류 Peridinium bipes f. occultatum의 Small-Subunit Ribosomal DNA(SSU rDNA) 염기서열 분석
기장서,조수연,한명수,Ki, Jang-Seu,Cho, Soo-Yeon,Han, Myung-Soo 한국조류학회(藻類) 2005 ALGAE Vol.20 No.1
To clarify some confusions concerning identification of the Korean Peridinium species, genotypic analysis was performed with their SSU rDNA sequences. PCR was used to amplify the partial SSU rDNA of Peridinium isolates collected from three different Korean waters (Juam, Sang-sa and Togyo Reservoirs). The PCR products were allowed directly to sequence, which revealed each 942 bp of rDNA sequence. Analyses of the rDNA sequences showed that all the Korean isolates had the same genotype (100% sequence homology), and they were nearly identical to a Japanese strain of P. bipes f. occultatum (NIES 364; 99.8% sequence similarity). The sequence-based comparisons could clearly resolve P. bipes f. occultatum isolated from three different Korean waters.
체계적 문헌고찰을 통한 한국음식의 선호도와 인지도 분석
추한나,권용석,김기옥,황유진,조수묵,Chu, Han-Na,Kwon, Yong-Seog,Kim, Ki-Ok,Hwang, Yu-Jin,Cho, Soo-Muk 한국식생활문화학회 2020 韓國食生活文化學會誌 Vol.35 No.6
The purpose of this study was to select 30 representative Korean dishes by a systematic review of preferences and recognition of Korean foods. The papers for the review were located using the keywords 'hansik', 'hanguk eumsik' from DBpia, KISS, NDSL and RISS, and 18 relevant papers were finally short-listed. To analyze the preferences of Koreans and foreigners for Korean dishes, respondents were chosen from various regions such as Asia, Europe, South Pacific, Africa, and North/South America. A total of 4,053 respondents participated in the selected papers and Korean dishes were classified according to the content analysis based on books published by the Rural Development Administration (RDA). Among the main dishes, two kinds of cooked rice were selected, bibimbap and kimbap. Also, noodles, dumplings, and sliced rice cake soup varieties mul-naengmyeon, guksujangguk, mandu, and tteokguk were selected as main dishes. The side dishes selected included 6 kinds of soup, miyeokguk, yukgaejang, samgyetang, gomtang, seolleongtang, and galbi-tang. Other side dishes selected were six types of stews namely doenjang-jjigae, kimchi-jjigae, sundubu-jjigae, haemultang, maeuntang, and dakbokkeum-tang. Three kinds of grilled side dishes selected were bulgogi, galbi-gui, and samgyeopsal-gui. Galbi-jjim was selected in the category of braised or steamed foods. Tteokbokki and japchae were the stir-fried food selected. Pan-fried foods and fried foods selected included a kind of haemul-pajeon and dak-gangjeong respectively. Seasoned vegetables selected were samsaek-namul including gosari-namul, sigeumchi-namul and doraji-namul. Two kinds of baechukimchi and kkakdugi were selected as kimchies, and sikhye was selected in the category of beverages and teas. These results could be used as selection criteria in developing recipes for representative Korean menus.
호지킨 림프종과 역형성 대세포 림프종의 세침흡인 세포소견 비교
고재수,박선후,김민석,조수연,정수영,유한석,김정순,하화정,류백렬,이승숙,Koh, Jae-Soo,Park, Sun-Hoo,Kim, Min-Suk,Cho, Soo-Youn,Chung, Soo-Young,Ryu, Han-Suk,Kim, Jung-Soon,Ha, Hwa-Jung,Ryoo, Baek-Youl,Lee, Seung-Sook 대한세포병리학회 2006 대한세포병리학회지 Vol.17 No.2
To study the differentiating cytomorphological features of Hodgkin lymphoma (HL) and anaplastic large cell lymphoma (ALCL) using fine needle aspiration cytology (FNAC), cytomorphological features of 16 patients with HL (n=8) or ALCL (n=8) were analyzed. In the initial cytological diagnosis prior to biopsy, HLs were properly diagnosed in 4 out of 8 cases (4 HL, 2 atypical, 2 benign), whereas all ALCL were diagnosed as malignancies. However, correct diagnosis of non-Hodgkin lymphoma (NHL) was made in only two ALCL patients (2 NHL, 1 HL, 1 sarcoma, 4 malignancy without specific type). Overall, the percentage of large abnormal cells ranged from 30% to 90% in ALCL except for one case, whereas it was less than 5% in all 8 HL. A spectrum of atypical cells was more characteristic of ALCL. In contrast, HL showed an sharp difference between reactive lymphoid cells and neoplastic ones (bimorphic pattern). Moreover, the emergence of kidney-shaped abnormal cells or wreath-like multinucleated cells was helpful in diagnosing ALCL. The combination of thesefeatures would be useful in differentiating HL and ALCL. Nevertheless, these two types of lymphomas cannot be definitely distinguished based on cytomorphological features alone. Therefore, the aim of FNAC would be to suggest a specific diagnosis and indicate the need for a biopsy.