제주도 멸종위기종 솔잎란(Psilotum nudum) 자생지 특징에 관한 연구

최영은 ( Young Eun Choi ),김창환 ( Chang Hwan Kim ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2013 한국환경복원기술학회지 Vol.16 No.3

This study was conducted to understand the habitat characteristics of Psilotum nudum of Dosuncheonriver and Anduck valley in Jeju Island. The total of 79 vascular plants taxa including 39 families, 58 genera, 75 species and 4 varieties were investigated in Dosuncheon river, while 59 vascular plants taxa consisting of 34 families, 50 genera, 53 species and 6 varieties were investigated in Anduck valley. When it comes to the life form, the rates of distribution of annual plants (therophytes) at the mouth of Dosuncheonriver and Anduck valley were lower than those of the Korean peninsula and Jeju Island. However, the rates of distribution of chamaephytes and epiphytes were higher at the mouth of Dosuncheon river and Anduck valley. As for vegetation, epiphytes (such as Trachelospermum asiaticum var. intermedium, Trachelospermum asiaticum var. majus and Lemmaphyllum microphyllum) and adiantum plants (including Psilotum nudum, Cytomium fortunei and Rumohra aristata), which are typically easy to be dispersed in rocky zones, dominated these areas since they are vertical or horizontal joints containing wide rocky zones. The main threats to the habitats of Psilotum nudum are environmental pollution, lack of publicity, installation of various facilities such as recreational facilities, gathering for medical and horticulture purposes, vegetation succession and application of waterfront. The management of the rocky zones as habitats for Psilotum nudum is an important factor in their expansion.

빅데이터 기반 수소충전소 안전관리 기술개발에 관한 연구

최영은(Young-Eun Choi),조충희(Choong-Hee Joe),김동환(Dong-Hwan Kim),허윤실(Yun-Sil Huh) 한국에너지기후변화학회 2020 한국에너지기후변화학회 학술대회 Vol.2020 No.11

T-CMOS SPICE Compact Model 제작 및 산포 검증

최영은(Young-Eun Choi),김우석(Woo-Seok Kim),김명(Myoung Kim),김경록(Kyung Rok Kim) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.6

다중 레이블 분류를 이용한 과실 숙도 감별 시스템

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

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.

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.

청국장 식이와 등마사지가 40~50대 중년여성의 체형에 미치는 영향

최영은 ( Young-eun Choi ),강상모 ( Sang-mo Kang ) 한국미용학회 2017 한국미용학회지 Vol.23 No.1

This study was performed to find out the effects of back massage and soybean diet on 40`s~50`s women`s body. 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). The change of weight, Body Fat Mass, Skeletal Muscle Mass, BMI, Percent Body Fat and WHR 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. The result was as follows regarding Cont group, BMI, Percent Body Fat were increased by 2%, 1%, but there was no meaningful effect on weight Body Fat Mass, Skeletal Muscle Mass, WHR. In case of SD group, weight, Skeletal Muscle Mass, Percent Body Fat were decreased 2%, 3%, 1% but there was no meaningful effect on Body Fat Mass, BMI, WHR. BM group, weight, BMI, Percent Body Fat were decreased by 3%, 3%, 1% but there was no meaningful effect on Body Fat Mass, Skeletal Muscle Mass, WHR. With regard to SDBM group, Skeletal Muscle Mass were increased by 4% and weight, Body Fat Mass, BMI, Percent Body Fat, WHR were decreased by 6%, 5%, 5%, 3%, 4%. The results are more effective in SDBM group than the other group on the body for 40 to 50 middle-aged women.

제주도 안덕계곡에 분포하는 식물의 생활형에 관한 연구

최영은 ( Choi Young-eun ),김창환 ( Kim Chang-hwan ),권용호 ( Kwon Yong-ho ),두하은 ( Doo Ha-eun ) 한국도서(섬)학회 2018 韓國島嶼硏究 Vol.30 No.2

제주도 남제주군 안덕계곡에 분포하는 식물의 생활형 분석을 위해 생활형을 휴면형, 지하기관형, 산포기관형의 3개 유형으로 세분하여 분석하였다. 휴면형은 조사된 420종 중에서 지상식물이 87종, 20.71%로 가장 많은 식물이 분포하고 있으며, 반지중식물, 일년생식물이 각각 79종, 18.81%와 75종, 17.86%로 비슷한 분포비율을 보였다. 또한 지중식물이 66종, 15.71%, 미소지상식물이 54종, 12.86%로 비교적 많은 종이 분포하고 있었다. 지상식물이 분포하고 있는 곳의 하층식생은 상록관목들이 자라고 있기 때문에 미소지상식물의 분포비율도 비교적 높게 나타났다. 일년생식물은 인위적 교란과 훼손지역 내에 침투한 외래종 등으로 구성되어 있어 인간의 활동 등이 영향을 미친 것으로 보인다. 착생식물과 수생식물 분포는 안덕계곡의 지형적 특징인 다양한 계곡 암벽의 모양 등이 반영된 결과이다. 수생식물은 안덕계곡의 하천길이가 길고 유량이 풍부하여 수계의 발달이 잘 되어있기 때문에 비교적 많은 수의 수생식물이 분포하였다. 1995년, 2004년, 2017년에 조사된 식물의 휴면형 분포비율을 보면 각각의 휴면형 유형의 종수는 증가했으나 휴면형 유형의 분포비율은 거의 유사한 비율을 보였다. 이것은 안덕계곡의 기후적 조건뿐만 아니라 지형적 조건이 크게 영향을 미친 결과로 보인다. 지하기관형은 단립식물(R5)의 비율이 236종, 56.19%로서 많은 종이 단립식물의 지하기관형을 가지고 있었다. R3유형은 58종 13.81%, R4는 32종 7.62%의 비율을 보였다. 인경, 구경, 괴경, 괴근을 갖는 유형과 근경이 지하로 수직으로 벋는 유형은 분포비율이 매우 낮았으나 다육근은 14종으로서 비교적 많은 수의 식물이 분포하였다. 이러한 현상은 안덕계곡의 하상과 곡벽의 용암류로 이루어진 암반 및 주상절리의 지형조건이 이들 유형의 식물 서식조건과 관련이 있는 것으로 보인다. 산포기관형은 중력산포형이 168종, 40%로서 가장 많이 분포하고 있었다. 그 다음으로는 풍수산포형이 93종, 22.43%, 동물산포형이 91종, 21.67%의 분포비율을 보였다. 동물산포형, 풍수산포형 등의 분포비율은 지역적 특성 및 지리·지형적 특성을 반영하고 있는데 안덕계곡의 수직절벽이 계곡의 양안을 이루는 계곡의 특성이 영향을 미친 것으로 보인다. This research was conducted to analyze plant life forms of Andeok valley in Nam Jeju-gun(county) of Jeju Island by dividing the life forms into three categories:dormancy form, radicoid form, and disseminule form. Of the total 420 species surveyed, phanerophytes (P) of dormancy form were most prevalent as 87 taxa or 20.71% followed by hemicryptophytes (H) and therophytes (Th) with 79 taxa or 18.81% and 75 taxa or17.86%, respectively. In addition, geophytes (G) and nanophnerophytes (N) were relatively abundant with 66 taxa (15.71%) and 54 taxa (12.86%) respectively. Since evergreen shrub grows on the understory vegetation where P is distributed, the distribution of N was observed to have a fairly high proportion. Th is composed of species, which are introduced by anthropogenic disturbance and alien species invaded. In this context, human activities might affect the distribution of Th. The distribution ratio of chamaephytes (Ch) and hydatophytes (HH) reflects the geographical characteristics of Andeok valley, which has various shapes of cliffs. As the river length of Andeok valley is long and its stream flow is plentiful, a relatively large number of HH were distributed in the valley. As for the distribution of the plants surveyed in 1995, 2004, and 2017, the number of species of dormancy forms has been increased, while its distribution rate has shown asimilar proportion. This might be significantly influenced by both climate conditions and topographical features. Of propagation forms, R5(non-clonal growth) of radicoid from was predominant as 236 taxa (56.19%), followed by R3 (rthizomatous plants) and R4 (stoloniferous plants) with 58 taxa (13.81%) and 32 taxa (7.62%), respectively. Unlike the percentage of root types, which are bulb, corm, tuber and tuberous root, a fleshy root has a wide variety of plant species with 14 taxa. In terms of disseminule form, D4 (only by gravity) including 168 taxa (40%) was predominant, followed by D1 (disseminated by wind and water) including 93 taxa (22.43%) and D2 (by animals and man) containing 91 taxa (21.67%). The proportion of D1 and D2 reflects regional characteristics and geographical and geomorphological properties, which were influenced by a deep ravine of Andeok valley.

중소기업의 정부지원형 ERP시스템 도입 영향요인에 관한 연구

최영은 ( Young Eun Choi ),박종필 ( Jong Pil Park ),이은곤 ( Eun Kon Lee ) 한국정보시스템학회 2013 情報시스템硏究 Vol.22 No.4

Government initiatives are continuously being invested to nurture supporting business environment for small and medium sized enterprises (SMEs), such as government-support ERP systems project for SMEs. As such, scholars need to pay attention to SMEs can successfully adopt and manage government-support ERP systems. This study, therefore, conceptually developed and tested a research model for understanding what factors influence SMEs` intention to adopt government-support ERP systems. We obtained thirty samples from SMEs, which is organizational level, and data were analyzed using the partial least square (PLS) technique. The results of data analysis found that institutional pressure and resource dependence had positive effects on the adoption of government-support ERP systems. On the other hand, risk aversion of SMEs was found to have negative effects to adopt government-support ERP systems.