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      • KCI등재

        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.

      • KCI등재
      • KCI등재

        고등학교 영어 이야기 글(Narrative texts) 평가 문항 개발

        최영은 ( Young Eun Choi ),김경한 ( Kyong Hahn Kim ) 글로벌영어교육학회(구 호남영어교육학회) 2012 Studies in English education Vol.17 No.2

        This study points out the problem of the disproportionate use of narrative texts in English tests and suggests a need for a balanced evaluation between expository and narrative texts to test students` reading ability. To that end, the study develops a new type of narrative text test items for high school English, thereby making expository and narrative writings used proportionately in national English tests. The study was proceeded as follows. First, a questionnaire was made based on the analysis of the problems of the previous KSAT (Korean Scholastic Aptitude Test) English test in 2002~2011. Second, a new type of narrative text test items were developed based on the analysis. Third, the developed items were piloted to check their reliability and validity. Fourth, this study was modified by the feedback according to the piloting results. The study shows the possibility that a new type of narrative text test items can be developed and used in the actual English tests and that they will contribute to the normalization of reading education in Korea by keeping the balance between expository and narrative writings.

      • KCI등재

        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.

      • KCI등재

        뇌성마비 아동을 대상으로 한 한국판몸통손상척도(K-TIS)의 측정학적 적합성 연구

        최영은 ( Choi Young-eun ),정혜림 ( Jung Hye-rim ) 대구대학교 특수교육재활과학연구소 2020 특수교육재활과학연구 Vol.59 No.4

        본 연구의 목적은 한국판몸통손상척도(K-TIS)가 뇌성마비 아동의 몸통조절능력을 측정하는 검사 도구로의 신뢰도와 타당도를 검증하고자 하였다. 뇌성마비로 진단받은 아동 57명을 대상으로 한국판몸통손상척도(K-TIS), 한국판대동작기능평가(K-GMFM), 대동작기능분류체계(K-GMFCS)를 측정하여 K-TIS의 신뢰도와 타당도를 분석하였다. K-TIS의 동시 타당도를 알아보기 위해 K-GMFM의 앉기 영역 간의 상관관계를 알아본 결과, K-TIS의 총점 및 하위 영역들의 모든 항목들은 K-GMFM의 앉기 영역과 유의한 상관이 있는 것으로 나타났으며 (p<0.05), K-TIS의 판별 타당도를 알아보기 위해 K-GMFCS의 기능 수준에 따른 K-TIS의 총점과 차이를 알아본 결과 유의한 차이가 있었다(p<0.05). K-TIS의 내적일치도를 분석한 결과 K-TIS 전체 항목에 대한 Cronbach's α는 .942를 나타냈다. K-TIS는 뇌성마비 아동의 몸통조절능력을 측정하기에 충분한 신뢰도와 타당도룰 가지고 있는 평가도구임을 확인하였으며, 임상적으로 유용하게 사용될 수 있을 것으로 생각된다. The objective of this study is to verify the reliability and validity of Korean-version of Trunk Impairment Scale (K-TIS) as a test instrument for measuring the trunk control ability of children with cerebral palsy. This study analyzed the reliability and validity of Trunk Impairment Scale (K-TIS), by measuring the K-TIS, the Korean version of Korean-version of Gross Motor Function Measure -88 (K-GMFM-88), and the Korean-version of Gross Motor Function Classification System (K-GMFCS), targeting a total of 57 children diagnosed with cerebral palsy. In the results of understanding the correlation between domains of sitting in the K-GMFM-88 to understand the concurrent validity of K-TIS, all the items of the subdomains and the total score of K-TIS showed significant correlations with the domain of sitting in the K-GMFM-88 (p<0.05). In the results of understanding the total score and differences of K-TIS according to the function level of K-GMFCS to understand the discriminant validity of K-TIS, there were significant differences (p<0.05). In the results of analyzing the internal consistency of K-TIS, the Cronbach's α of all the items of K-TIS was .942. The results of this study verified that K-TIS would be a test instrument fully equipped with the reliability and validity sufficient to measure the trunk control ability of children with cerebral palsy. Utilizing K-TIS could be beneficial in a clinical site.

      • KCI등재

        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.

      • KCI등재

        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.

      • KCI등재

        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

        덕유산 국립공원 향적봉 (해발고도 1,614 m) 일대 삼림 식생은 산지삼림식생과 평지삼림식생으로 대별되어있다. 산지삼림식생은 산지낙엽활엽수림, 산지습성림, 산지침엽 수림, 아고산침엽수림, 산지관목림, 산지초원식생, 식재림 등으로 세분되었으며, 평지삼림식생은 하반림이 조사되었다. 상관대분류(physiognomy classification)에 의하여 구분된 산지삼림식생의 분포군락수는 산지낙엽활엽수림 42개군락, 산지습성림 37개 군락, 산지침엽수림 8개 군락, 아고산침엽수림 6개 군락, 산지관목림 3개 군락, 산지초원 1개군락, 식재림 21개 군락, 기타 4개 군락의 122개 군락과 하반림 2개 군락의 총 124개 군락이 조사되었다. 조사된 주요 군락의 분포 비율을 보면 산지낙엽활엽수림은 신갈나무군락이 3,638,917.98m2의 23.75%로 가장 높은 분포 비율로 조사되었고, 졸참나무군락이 1,977,984.23m2의 12.91%, 굴참나무군락 1,586,894.01m2 10.36%로 3개 군락이 전체의 47.02%를 차지하고 있었으며, 산지습성림은 들메나무군락이 전체의 57.48%를 차지하고 있으며, 들메나무와 상층부의 식피율이 비슷하여 혼생군락을 이루고 있는 군락은 14개 군락으로 전체의 31.88%를 차지하고 있다. 산지침엽수림은 소나무군락이 전체의 77.53%로서 대부분의 산지침염수림은 소나무 1종이 상층부에서 우점종으로 나타나는 군락의 양상을 나타내고 있다. 아고산침엽수림은 주목-구상나무군락이 49.30%로 약 50%를 차지하고 있으며, 구상나무군락이 18.91%로, 구상나무-주목군락이 2.44%로 주목과 구상나무가 상층부 우점종 및 차우점종으로 군락을 이루는 비율이 70.65%로 조사되었다. 산지관목림 및 산지초원식생은 대부분 향적봉 정상과 정상에서 중봉으로 이어지는 능선부에 집중되어있다. 식재림은 일본잎갈나무가 식재림 전체의 50.40%로 가장 많이 식재되었으며, 리기다소나무가 24.51%, 잣나무가 19.74%로 3개 수종이 전체의 94.65%로 대부분이 이들 3종에 의하여 식재되어졌다. 한편 하반림 식생은 연구대상지역 전체 식생면적의 0.024%를 차지하고 있다. 결론적으로 덕유산 국립공원 향적봉 일대 삼림식생은 신갈나무, 졸참나무, 굴참나무, 들메나무, 층층나무, 소나무, 구상나무, 주목 등 소수의 수종이 최상층부의 우점종으로 분포하고있으며 2종에 의하여 형성된 수많은 군락들은 식생천이 및 기후적 요인에 의하여 이 지역 일대의 극상수종인 신갈나무, 서나무, 들메나무 등으로 군락 대체가 예상된다. 그러나 아고산침엽수림은 기후온난화와 인위적 교란에 의하여 점차적으로 낙엽활엽수의 분포비율이 증가할 것으로 보인다. 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.

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