비가시 영역의 부분 매핑 및 객체 위치 추정을 위한 복셀 3D 좌표 활용

최영은(Yeong Eun Choi),정솔미(Sol Mi Jeong),신수용(Soo Young Shin) 한국통신학회 2024 한국통신학회 학술대회논문집 Vol.2024 No.1

카메라와 2D Lidar의 데이터 퓨전을 이용한 신장 추정 알고리즘

최영은(Yeong Eun Choi),신수용(Soo Young Shin) 한국통신학회 2023 한국통신학회 학술대회논문집 Vol.2023 No.6

회야호의 남조류 발생 특성과 남조류 독소의 농도분포특성

최영아(Young Ah Choi),한난숙(Nan Sook Han),임은경(Eun Gyoung Lim),김영민(Young Min Kim),전창재(Chang Jae Choun),이병호(Byoung Ho Lee) 大韓環境工學會 2013 대한환경공학회지 Vol.35 No.12

최근 국내의 호소들에 부영양화가 진행됨에 따라 남조류가 대량 번식하는 현상이 나타나고 있다. 남조류에 의한 녹 조현상은 미관상 불쾌감을 유발하고 이취미 유발과 함께 정수장애도 일으킨다. 그리고 일부 남조류가 생산하는 남조류 독소 에 의한 야생동물 및 가축에 대한 피해가 계속적으로 보고됨에 따라 우리나라에서도 조류주의보 발생 시 조류독성에 대한 모 니터링을 강화하게 되었다. 이번 연구에서는 울산시가 상수원으로 사용하고 있는 회야호에서의 남조류 발생 특성을 조사하 고, 물리, 화학적 환경요인과의 관계를 알아보았다. 그리고 남조류 발생 시 생성되는 남조류 독소(Cyanotoxins) 중 Microcystin 4종과 Anatoxin-a 등 5종을 LC-MS/MS를 이용해 분석하여 그 거동을 알아보았다. 조사 기간 동안 회야호에서는 남조류 중에 서 Microcystis가 우점하였고, 남조류 개체수는 수온, pH와 양의 상관관계를 나타내었다. 이 시기 동안 Microcystin-LR의 최대 농도는 0.424 μg/L, Microcystin-RR의 최대 농도는 0.117 μg/L 이었다. Cyanotoxins의 농도는 수온, pH와 강한 양의 상관관계를, 총인 농도와 양의 상관관계를 나타내었다. 그리고 정수장으로 유입되는 원수에서의 총 Cyanotoxins의 농도는 0.182 μg/L 이었고, 정수에서는 검출되지 않았다. Algae blooms have soared recently in the lakes across the nation due to eutrophication. Blue-green algae cause unpleasant scene, produce taste and odor problem, and hinder processes in drinking water treatment. Algae toxicity monitoring has been strengthened, because the damages of wild lives and livestocks by algal toxins have been reported. Investigation on the characteristics of cyanobacterial occurrence and concentration distribution of Cyanotoxins in Hoeya reservoir have been conducted. Physical and chemical influences of water environment on cyanobacterial occurrences have also been studied. Movements of four species of Microcystin and five species of Anatoxin-a among Cyanotoxins were observed by LC-MS/MS analysis. Microcystis spp. among the cyanobacteria have mainly dominated in the Hoeya reservoir during the investigating period. The density of cyanobacteria were positively correlated with temperature and pH of water. Highest concentrations of Microcystin-LR and Microcystin- RR were 0.424 μg/L and 0.117 μg/L at the sampling points. Total concentration of Cyanotoxins in water coming into the water treatment plant was 0.182 μg/L, and they were not detected in treated water.

영재아의 개인 및 부모 변인이 완벽주의 성향에 미치는 영향

최영은 ( Young Eun Choi ),최보가 ( Bo Ga Choi ) 대한가정학회 2005 Human Ecology Research(HER) Vol.43 No.10

다중 레이블 분류를 이용한 과실 숙도 감별 시스템

최영은(Yeong Eun Choi),신수용(Soo Young Shin) 한국통신학회 2023 한국통신학회 학술대회논문집 Vol.2023 No.2

전라북도 부안·고창군 무인도서 식물상에 관한 연구

최영은 ( Young Eun Choi ),김창환 ( Chang Hwan Kim ) 한국도서(섬)학회 2013 韓國島嶼硏究 Vol.25 No.2

This study analyzes the flora researched from 22 uninhabited islands in Buan-gun and Gochanggun of Jeollbukdo Province. In total there were 199 taxa of vascular plants, 65 families 139 genera 173 species, 1 subspecies, 23 varieties, 2 forms, and they were studied. Among these were 70 types of Jakeuntanchi-do including 35 families 58 genera 57 species, 11 varieties, 2 forms, 69 taxa of Gae-do, 51 types of Suribawi, 45 varieties of yeol-do and 43 taxa of Tanjunggeum-do in the order of the number of types. However, there was not a single plant found in Moyeo2-do, Moyeo3-do and Ganyeo-do since the environment there only consists of rocky terrains in which vegetation is hard to form. In order to analyze the characteristic of each flora, samples from the Chungnam province was collected at a higher latitude where as in the Jeonnam province, plants in the lower latitude were examined. The districts involved concerns Buangun and Gochanggun including the 22 uninhabited islands. In Buangun and Gochanggun only a minority species of Evergreen Broad leaved Trees such as the Camellia japonica and Eurya japonica which tend to be dispersed were examined. Compared to Goheung, Yeosu and Younggwang where there are diverse warm temperate species, Bunangun and Gochanggun have a less variety of vegetation. In addition a high number different vegetation was found in the uninhabited islands of Chungnam province and Gunsan city, where artificial disturbance is not severe compared to other study areas. A total of 21 taxa of Korean endemic plants were researched in the study area, which involves the South Province of the Korea. A relatively small number of Korean endemic plants, 1.96% of 1,071 Korean endemic plants (Kim, 2000), inhabit this region. The number of naturalized plants was relatively small as well, consisting of 8 taxa, 4.39% (naturalized ratio) of the whole 182 species researched in the 22 uninhabited islands and 2.49%(urbanization index) of the 321 Korean naturalized plants species. Thus, vegetation conservation and restoration measures are needed in order to protect the vegetations of Buangun, Gochanggun and the 22 uninhabited islands from human interference and disturbance. In conclusion this study was designed to identify indigenous species dispersed in Buangun, Gochanggun and the 22 uninhabited islands. The purpose of this study was to provide primary data on examining indigenous species in order to contribute to the conservation and restoration of flora and vegetation.

입원 중증 손상 환자의 사망과 전원에 영향을 미치는 요인에 관한 다수준분석

최영은 ( Young Eun Choi ),이강숙 ( Kang Suk Lee ) 한국보건행정학회 2013 보건행정학회지 Vol.23 No.3

청국장 식이와 등마사지가 40~50대 중년여성의 안면피부에 미치는 영향

최영은 ( Young-eun Choi ),강상모 ( Sang-mo Kang ) 한국미용학회 2016 한국미용학회지 Vol.22 No.5

This study was performed to find out the effects of back massage and soybean diet on the facial skin of the middle-aged women in their 40``s-50``s. Test subjects were classified into 4 groups, the control group (Cont), the soybean diet group (SD), the back massage group (BM) and the soybean diet & back massage group(SDBM). Each group was consisted of ten persons in their 40``s-50``s. The change of sebum, moisture, melanin index and erythema index of each group were measured before the experiment and after 12 weeks. The soybean diet group (SD) were ingested every morning soybean 50g, and the back massage group (BM) has received a back massage twice a week (each 30 minutes), SDBM were received all. When observed the change of skin condition by averaged each part in face, since the sebum was measured that BM group increased 12% compared with Cont. group, and SDBM group increased 11% compared with Cont. group. The moisture was measured that BM group increased 3% compared with Cont. group, and SDBM group increased 7% compared with Cont. group. Also, melanin index change was measured that BM group decreased 24% compared with Cont. group, and SDBM group decreased 29% compared with Cont. group. Erythema index change was resulted that BM group decreased 14% compared with Cont. group, and SDBM group decreased 15% compared with Cont. group. The results are effective back massage than the soybean diet on the facial skin for 40 to 50 middle-aged women. However, it could be confirmed that this is more effective in SDBM.

덕유산 국립공원 향적봉 일대 삼림식생의 군락분포에 관한 연구

최영은 ( Young Eun Choi ),오장근 ( Jang Geun Oh ),김창환 ( Chang Hwan Kim ) 한국하천호수학회 2013 생태와 환경 Vol.46 No.2

Forest vegetation of Hyangjeokbong (1,614 m) in Deogyusan National Park is classified into mountain forest vegetation and flatland forest vegetation. Mountain forest vegetation is subdivided into deciduous broad-leaved forest, valley forest, coniferous forest, subalpine coniferous forest, shrub forest, grassland forest, afforestation and etc., while riparian forest was found under the category of flatland forest vegetation. Including 122 communities of mountain forest vegetation and 2 communities of riparian forest, the total of 124 communities were researched; the distributed colonies classified by physiognomy classification are 42 communities deciduous broad-leaved forest, 37 communities of valley forest, 8 communities of coniferous forests, 6 communities of subalpine coniferous forest, 3 communities of shrub forest, 1 communities of grassland forest, 21 afforestation and 4 other communities. As for the distribution rate for surveyed main communities, Quercus mongolica, Quercus serrata, Quercus variabilis communities account for 47.02 percent of deciduous broad-leaved forest, Fraxinus mandshurica community takes up 57.48 percent of mountain valley forest, Pinus densiflora community holds 77.53 percent of mountain coniferous forest holds, and Taxus cuspidate-Abies koreana community takes up about 50 percent of subalpine coniferous forest. Mountain shrub forest and mountain grassland forest vegetation are concentrated mainly on the top of Hyangjeokbong and the ridge connecting the top and Jungbong. Meanwhile, riparian forest vegetation comprises 0.024% of the whole vegetation area in a study area. In conclusion, minority species consisting of Quercus mongolica, Quercus serrata, Quercus variabilis, Fraxinus mandshurica, Cornus controversa, Pinus densiflora, Abies koreana and Taxus cuspidata are distributed as dominant species of the uppermost part in a forest vegetation region in Deogyusan National Park. In addition, because of vegetation succession and climate factors, numerous colonies formed by the two species are expected to be replaced by Quercus mongolica, Carpinus laxiflora and Fraxinus mandshurica which are climax species in the area. However, in respect of subalpine coniferous forest, the distribution rate of deciduous broad-leaved forest seems to increase gradually due to global warming and artificial disturbance.

덕유산 국립공원 적상산 일대 삼림식생의 군락분포에 관한 연구

최영은 ( Young Eun Choi ),김창환 ( Chang Hwan Kim ),오장근 ( Jang Geun Oh ) 한국하천호수학회 2013 생태와 환경 Vol.46 No.3

Forest vegetation of Choksangsan area in the Deogyusan National Park is classified into mountain forest vegetation. Mountain forest vegetation is subdivided into deciduous broad-leaved forest, valley forest, coniferous forest, afforestation and other vegetation. Including 103 communities of mountain forest vegetation and 8 communities of other vegetation, the total of 111 communities were researched; the mountain forest vegetation classified by physiognomy classification are 36 communities deciduous broad-leaved forest, 26 communities of valley forest, 10 communities of coniferous forests, 31 plantation and 8 other vegetation. As for the distribution rate for surveyed main communities, Quercus mongolica, Quercus variabilis communities account for 65.96 percent of deciduous broad-leaved forest, Fraxinus mandshurica community takes up 22.50 percent of mountain valley forest, Pinus densiflora community holds 63.27 percent of mountain coniferous forest holds. In conclusion, minority species consisting of Quercus mongolica, Fraxinus mandshurica, Quercus serrata, Pinus densiflora, and Quercus variabilis are distributed as dominant species of the uppermost part in a forest vegetation of Choksangsan in Deogyusan National Park. In addition, because of vegetation succession and climate factors, numerous colonies formed by the two species are expected to be replaced by Quercus mongolica, Carpinus laxiflora and Fraxinus mandshurica which are climax species in the area.