• 제목/요약/키워드: Native area

검색결과 687건 처리시간 0.033초

Low Temperature Dissociation of SiOx by Gold

  • 이경재;양미현;쿠마르 요게쉬;임규욱;강태희;정석민
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2013년도 제45회 하계 정기학술대회 초록집
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    • pp.140.1-140.1
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    • 2013
  • The native silicon-oxide (SiOx) layer at the metal/Silicon interface acts as an electrical resistance to the metal contact of devices. Various methods are proposed for removing this layer, such as sputtering before metal contact formation or high temperature annealing. We studied the chemical evolution of the Au/SiOx/Si system during the annealing at $500^{\circ}C$ using a spatially resolved photoelectron emission method. Scanning photoelectron emission microscopy (SPEM) and core level spectra from local area of the sample show the inhomogeneous oxidation and formation of silicide of Au, as well as valence band spectra reveals the role of Au atoms during the dissociation process of SiOx.

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The distribution, characteristics and utilization of Korean native Actinidia Genus

  • Cho, Y.;Cho, H.;Park, M.
    • 한국유기농업학회지
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    • 제19권spc호
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    • pp.30-34
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    • 2011
  • A. arguta is found nationwide whether the altitude is low or high if good drainage is achieved with plenty of water. The distribution of A. polygama seems to be more limited to higher altitude than A. arguta so it can be found in deep valley of highland even in Mt. Halla. A. kolomikta seems rather limited to colder area than A. arguta to Mt. Jiri to the south. Meanwhile, A. rufa is very confined to southern islands including Jeollanamdo and Jeju islands. Some institutes still continue to utilize Korean native Actinidia plants commercially since early 1980's. More collaborative efforts are needed for further development of these plants nationwide.

서울시 탄천 생태계 보전지역의 환경생태특성을 고려한 생태적 관리계획 (Ecological Management Plan Based on Environmental and Ecological Characteristics for the Tancheon Ecosystem Conservation Area in Seoul)

  • 한봉호;김종엽;홍석환
    • 한국조경학회지
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    • 제32권5호
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    • pp.84-101
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    • 2004
  • This study presents an ecological management plan for wildbird habitat conservation, an nature-friendly enhancement of bio-diversity using the riverside of the Tancheon Ecosystem Conservation Area in Seoul by analyzing environmental and ecological characteristics. As a result of analyzing actual vegetation, vegetation type was classified into 34 types. Humulus japonicus association covers an area of 441,568.6㎡(31.44%), and Artemisia princeps var. orientalis association covers an area of 89,690.1㎡(6.39%). Sandy plain as valuable wildbird habitat covers an area of 89,965.9㎡(6.4%). 125 taxa including 34 families, 93 genera, 107 species, and 18 varieties were recorded and the number of naturalized plants were 41 taxa at the survey site. Total naturalized index(NI) and urbanized index(UI) were recorded as 32.8%, and 15.5%. As a result of analyzing the herb plants association structure by surveying 8 belt-transects, the humid native plants was dominant in the partially adjacent revetment edge and damp riverside. On the other hand, naturalized plants was so extensively dominant that it was necessary to establish an ecological management plan. The observed wildbirds belonged to 50 species, 6,118 individuals, and 7 restricted species by law, which were Accipiter gentilis, Falco tinnunculus, Buteo hemilasius, and Buteo buteo. Oriolus chinensis,Hirundo rustica, and Alcedo atthis. The ecological administration plan for Tancheon Ecosystem Conservation Area as follows: in ecological land-use planning, the conservation area(695,518.5㎡) has native woody and herb vegetation and sandy plain with water as an wildbird habitat. The restoration area(653,702.7㎡) has a naturalized plants distribution are with artificial revetment. The nature-friendly Riverside Area(55,414.9㎡) was an easily approached area with damaged riverside vegetation, and a safe area to wildbird habitat. In riverside restoration planning, the artificial riverside should be restored to its natural riverside vegetation, and the artificial embankment should be restored with edge shrubs for wildbird habitat or revegetated for natural riverside landscape. For naturalized plants management planning, we selected naturalized plant species to be weeded out, and suggested an application method for ecological management.

Efficient Selection Method for Drought Tolerant Plants Using Osmotic Agents

  • Park, Dong-Jin;Im, Hyeon-Jeong;Jeong, Mi-Jin;Song, Hyeon-Jin;Kim, Hak-Gon;Suh, Gang-Uk;Ghimire, Balkrishna;Choi, Myung-Suk
    • Journal of Forest and Environmental Science
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    • 제34권3호
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    • pp.224-234
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    • 2018
  • An efficient method to select drought tolerant Korean native plants using in vitro culture system was established in this study. While the plant growths and root inductions of each plant were proportionately affected by concentrations of mannitol on in vitro culturing seven plant species to test tolerance to osmotic stress, growth index (GI) and number of root induction of Chrysanthemi zawadskii var. latilobum and Dianthus chinensis var. semperflorens plantlets were higher than the others in 125mM mannitol. In test with polyethylene glycol (PEG), plantlets of C. zawadskii var. latilobum and D. chinensis var. semperflorens showed higher GI and number of root induction than the others in 33.3mM. On testing whether the well grown plants under osmotic stress are tolerant to virtual drought stress, there were significant differences in the withering rates of C. zawadskii var. latilobum and D. chinensis and those of were Aster yomena and Centaurea cyanus after 12 days without watering. It was found that significantly lower stomata numbers were shown in both drought tolerant plants than the sensitive plants. Averages of the stomata circumferences and the stomata area in the plantlets of the tolerant species were larger than those of the sensitive plants D. chinensis var. semperflorens showed the lowest transpiration level per unit area. The highest stomatal area per unit area was found in C. zawadskii, followed by D. chinensis var. semperflorens, Aster yomena and C. cyanus. In conclusion, C. zawadskii var. latilobum and D. chinensis var. semperflorens were more tolerant to drought than other two species. Furthermore in vitro selection was successfully used to screen drought tolerance species of native plant species.

우리나라 천문동 개체군의 생태 특성 (Ecological Characteristics of the Asparagus cochinchinensis (Lour.) Merr. Population in South Korea)

  • 추병길;지윤의;문병철;윤태숙;이아영;천진미;김호경
    • 한국약용작물학회지
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    • 제17권2호
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    • pp.125-132
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    • 2009
  • This study was carried out to investigate the distribution of native Asparagus cochinchinensis and ecological characteristic in South Korea. Natural vegetative areas were investigated at 5 areas; Taean, Buan, Geoje, Namhae and Jindo. In this study, the $5m{\times}5m$ quadrat was established for recording coverage and appearance species by phytosociological method. The flora of the studied area in native habitats were listed as 130 species. The native habitats was classified into Pinus thunbergii community and typical community. Two communities were located in a coastal cliff and have been destroyed. Therefore Asparagus cochinchinensis native habitats must be protected by regulation. In the studied sites, soil pH, organic matter, nitrogen, available phosphorus, exchangeable K, exchangeable Ca, exchangeable Mg and cation exchange capacity were ranged from $5.1{\sim}5.7%$, $1.77{\sim}3.59%$, $0.19{\sim}0.54%$, $5.4{\sim}18.7$ (mg/kg), $0.24{\sim}0.48$ (cmol+/kg) $0.76{\sim}2.83$ (cmol+/kg), $3.11{\sim}6.22$ (cmol+/kg) and $8.7{\sim}24.5$(cmol+/kg), respectively.

한국 재래닭의 유전적 특성에 관한 조사 연구 (Studies on the Genetic Characters of Korean Native Fowl)

  • 정선부;정익정;박응우;여정수
    • 한국가금학회지
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    • 제16권4호
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    • pp.209-217
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    • 1989
  • 우리나라 재래닭의 유전적 특성을 조사연구하기 위하여 1989년 3월부터 11월까지 우리나라 중남부 지역에 산재해 있는 재래닭을 대상으로 재래닭의 기원, 외모형태에 대한 형태적 및 유전적 고찰, 유전물질의 분석을 위한 염색체의 분염분석 그리고 경제조사에 대해 조사하였다. 1. 일반적인 한국 재래닭의 외모와 형태는 갈색 례그혼종과 비슷하다. 2. 우모색은 착색계(40수)가 백색계(38수)보다 많은 비율을 차지하고, 우모형태는 야계형(317수)이 흑색(317수)보다 많았다. 3. 재래닭의 염색체수은 2n=39(78개)이지만 실제의 모양, 크기를 쉽게 판별 할 수 있는 염색채는 2n=10 (20개 정도이다. 4. 체중은 암탉의 1.2-1.6kg이었고 수탉은 1.5 -1.9kg이었으며, 산란수는 80-120개 정도였다.

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On Phylogenetic Relationships Among Native Goat Populations Along the Middle and Lower Yellow River Valley

  • Chang, H.;Nozawa, K.;Liu, X.L.;Geng, S.M.;Ren, Z.J.;Qin, G.Q.;Li, X.G.;Sun, J.M.;Zheng, H.L.;Song, J.Z.;Kurosawa, Y.;Sano, A.;Jia, Q.;Chen, G.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제13권2호
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    • pp.137-148
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    • 2000
  • This paper is based on the 9 goat colonies along the middle and lower Yellow River valley and 7 local goat colonies in the Northeast, Tibet and the Yangtze valley. After collecting the same data about the 22 goat colonies in China and other countries, it establishes and composes the matrix of fuzzy similarity relation describing the genetic similarities of different colonies. It also clusters 38 colonies according to their phylogenetic relationship. The establishment of the matrix and the cluster are effected in terms of the frequency of 18 loci and 43 allelomorphs in blood enzyme and other protein variations. The study proves that the middle Yellow River valley is one of the taming and disseminating centers of domestic goats in the South and East of Central Asia. Compared with other goat populations in this vast area, the native goat populations in the west of Mongolian Plateau, the Qinghai-Tibet Plateau and the middle Yellow River valley share the same origin. The colonies in the lower Yellow River valley and those in the middle valley, however, are relatively remote in their phylogenetic relationship. The native goat colonies in the southeast of Central Asia can be classified into two genetic groups: "East Asia" and "South Asia" and the colonies in Southeast Asia belong to either group.

제노포비아 확산에 따른 경찰의 대응방안 (Police Response Measures in accordance with Xenophobia Spread)

  • 김상운
    • 한국콘텐츠학회논문지
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    • 제16권4호
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    • pp.408-417
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    • 2016
  • 이 연구는 최근 우리사회에서 급속도로 확산되고 있는 제노포비아에 대한 문제점을 살펴보고 경찰의 대응방안을 찾고자 하는 목적의 연구로서, 연구의 목적을 달성하기 위하여 제노포비아 관련 선행연구 및 관련통계를 활용하여 문제점을 살펴보고 경찰의 대응방안을 제시하였다. 제노포비아란 자신이 속해있는 지역에 편입되는 이방인에 대한 부정적인 반응으로, 동질감을 느낄 수 없는 이방인들에 대하여 혐오하는 태도나 행동을 의미하는 것이다. 국내에서 발생하는 제노포비아는 현재까지 큰 사회문제가 된다고 보기는 어렵지만, 향후 심각한 범죄를 발생시키는 요인으로서 가능성을 가지고 있어 제노포비아를 제거하거나 억제시킬 수 있는 방법을 연구 중에 있다. 우리나라에서 발생하고 있는 제노포비아는 이주노동자의 증가, 외국인에 의한 범죄 증가, 저소득국가 출신자에 대한 부정적인 태도, 원주민들과 이주자들의 충돌과 함께 낮은 다문화수용성 등으로 인하여 제노포비아를 확산되고 있다. 특히, 무분별한 제노포비아의 확산은 무시 차별에 의한 외국인 범죄의 증가와 원주민과 이주민간의 충돌이 빈번하게 발생하고 경찰이 투입되어야 하는 상황이 증가하고 있다. 이러한 문제에 대하여 이 연구에서는 경찰의 대응방안으로 제노포비아에 의한 범죄 발생 시 관련법의 확대해석을 통한 처벌과 제노포비아를 조장하는 각종 매체에 대한 적극적인 대응, 제노포비아를 유발하는 이주민과 내국인과 충돌을 예방할 경찰활동 강화와 외국인범죄 예방방안을 제안하였다.

문학 작품을 통한 향토 음식 콘텐츠 개발 - 충무공 '현충(顯忠) 밥상', 추사 김정희 '추사(秋史) 밥상' (Development on Native Local Food Contents through Literature)

  • 김미혜;정혜경
    • 동아시아식생활학회지
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    • 제20권5호
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    • pp.639-654
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    • 2010
  • This study attempted to research the local food of various regions at a personal level by discovering how food has developed das part of a region's culture base. Discovery of the characteristic story behind the making of a region's characteristic food as local delicacies can inspire self-esteem in the culture, and enhance the real-life image as appropriate to a region, and thereby be made a part of local tourism and thus contributing to the local economy. For this reason, the native foods of the region of Chungcheongnam-do were researched in terms of the cultural sensibilities that inform the unique history of that region. The study was designed so as to aid in understanding food's characteristic value in Chungcheongnam-do and to give a historical representation of Chungcheongnam-do's image by means of storytelling techniques; thus, the local food's character can be presented alongside a story that appeals to the five senses. For this purpose, Chungcheongnam-do's representative native rice table was cast as the 'Hyunchoong rice meal table' - after the figure of admiral Yi Sun Shin of Asan area region, a representative image of Chungcheongnam-do - and 'Choosa rice meal table', after the figure of 'Choosa' Kim Jeong Hee of Yesan region, of which various literary works form a representative image of Chungcheongnam-do. 'Hyunchoong rice meal table' was composed of a health food centered menu which could supply sufficient nutrition as a food ration in times of war or winter shortage, thus providing an image of nutrition and power as appropriate to these situations. Also, to assess the health effectiveness of each rice table, the functionality of the ingredients were investigated as reported in 'Sik-ryo-chan-yo : a dietary treatment' which was published by Soon-Ui Cheon in the Chosun era and by which the foods of the early Chosun era won recognition as being both healthy profitable.

Consideration about Resident Participation Activities for Maintenance and Use OPen Space with Community Development in Hachioji New Town

  • Sakaguchi, Jiro
    • Journal of the Korean Institute of Landscape Architecture International Edition
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    • 제1호
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    • pp.150-158
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    • 2001
  • Maintenance open spaces and community development in large scale housing development is one of the most important issues. We(UDC) established a resident participation activity for maintenance and use open space with community development in Hachioji New Town from 1997. The purpose of this study is to establish resident participation activities for maintenance and use open space with community development in Hajichioji New Town, and to clarify the characteristics and to on sider about efficiency of the activity. We established Minamino Shizen-Juku as a methodology for maintenance and use open spaces at the same time Hachioji New Town was opened in 1997. The activity has continued by now in 2001. We conducted questionnaire survey to make sure efficiency and characteristics of the activity past three years. Minamino Shizen-Juku (nature friendly lessons) is a resident participation activity in Hachioji New Town. It was established in 1997 as soon as the new town was opened, this year is fifth since it was started. It has three objects. 1)Maintenance and use woody environment, 2) Community development, 3) Continuation and renewal native culture. And it has general course, three special courses and one extra course were established in the activity. 1) General course is an activity participated all of member. It's included farming experience in the native field and seasonal events. 2) Rice growing and woods maintenance course is rice growing and wild wood maintenance in the park as a series of annual farming activities. 3) Benefaction from farm course is started from planting spring vegetable at Mizukoshi(Leader of Minamino Shezen-Juku)'s field. There is the number of participant limit because of the area of the field. 4) Watching nature course is watching seasonal wild flowers, trees, animals and plants to know about native nature. 5) Extra program is programmed to know about native history and tradition. It's planned including participant's ideas. Not member can participate in this course too.

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