• 제목/요약/키워드: Central City

검색결과 759건 처리시간 0.032초

상주(尙州)의 자연지리 (Physical Geography of Sangju, Korea)

  • 손명원
    • 한국지역지리학회지
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    • 제8권3호
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    • pp.281-294
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    • 2002
  • 인간은 그들의 문화에 따라 다양한 방식으로 독특한 문화경관을 만들어낸다. 본 연구는 상주 지방에 분포하는 문화경관의 특성을 고찰하였다. 이를 위하여 상주시역을 자연적인 지표(지세 및 수계)예 따라 구분한 후 인문적인 지표(조선시대의 행정구역, 방언, 정기시장권역)로서 고찰하여 6개 소지역을 설정하였다. (1) 낙양지역은 병성천과 동천 주변의 충적지와 사벌의 구릉지를 기반으로 이루어진 전통적인 중심지역이며 (2) 낙동지역은 낙동강의 수운과 영남대로의 육로가 교차하는 교통 중심지역이고 (3) 병성천 상류지역은 낙양지역에서 이어지는 농협지역이며 (4) 중모 지역은 산간분지의 독특한 기후를 기반으로 포도재배가 성한 지역이고 (5) 화령 지역은 속리산지, 용유계곡의 수려한 경치와 견훤 유적을 기반으로 한 산악관광지역이며 (6) 함녕지역은 삼백(명주, 곶감, 쌀)이 풍부한 고령가야 지역이다.

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중성자 방사화분석에 의한 5세기 옹관의 산지 연구 (A Study on Provenance of the 5th Century Jar Coffin using Neutron Activation Analysis)

  • 정광용
    • 보존과학회지
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    • 제26권4호
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    • pp.459-465
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    • 2010
  • 국내 최초로 5세기 대 옹관을 생산하는 가마가 나주시 오량동유적에서 발견되었다. 이 가마는 영산강 중류에 입지하고 있으며 고대사회 장묘연구에 있어서 생산과 유통구조 그리고 소비체계를 연구할 수 있는 귀중한 자료이다. 따라서 이 가마에서 생산되는 옹관이 어디로 소비되었는지를 밝히기 위하여 인근 영산강유역을 중심으로 하는 대표적인 옹관 고분유적 5기와 4세기 대 만동유적에서 발굴된 옹관유물을 대상으로 하였다. 중성자 방사화분석법을 이용하여 각 유물들의 미량성분을 분석하고 그 결과를 판별분석을 이용한 통계분석으로 산지의 동일성을 추정하였다. 나주 오량동 가마에서 생산된 옹관은 교역과 유통을 통하여 나주 반남고분, 영암 옥야리고분, 그리고 함평 반암고분에서 사용되었을 가능성이 크다. 또한 고창 만동유적과 무안 인평고분의 옹관은 나주 오량동 가마에서 생산된 것이 아니라 다른 산지의 옹관 가마로부터 교역과 유통을 통해 유입되었다고 사료된다.

A Study on Anion Generation according to Vertical Structures of Tree

  • Kim, Jeong-Ho;Oh, Deuk-Kyun;Seo, Yoo-Hwan;Park, Jae-Hyeon;Yoon, Yong-Han
    • 한국환경과학회지
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    • 제25권10호
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    • pp.1369-1379
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    • 2016
  • This research assessed the disparity in anion generation according to the vertical structure of a Zelkova Serrata tree for the purpose of creating a pleasant and green city environment. Measurements for the study were conducted between July and August of 2014 in Chung-ju in the central region of the Republic of Korea. The average anion generation of vertical structure trees during active photosynthesis periods was: L Section ($839.0ea/cm^3$) > M Section ($664.6ea/cm^3$) > U Section ($472.0ea/cm^3$). According to DMRT analysis, significant difference was found in the average between the L, or M Locations and the U Locations. During dormant photosynthesis periods, records showed that the anion production at the M Location ($1,212.5ea/cm^3$) > L Location ($1,050.4ea/cm^3$) > H Location ($844.1ea/cm^3$), According to DMRT analysis, the difference within each location was significant for ${\alpha}=0.05$. In a comprehensive analysis of the weather factors in each vertical structure, anion generation during active photosynthesis periods showed a positive correlation with solar radiation and a negative correlation with wind speed. Dormant photosynthesis periods showed negative correlations with both solar radiation and temperature, and positive correlations with relative humidity and wind speed. Predictions from a multicenter retrospective study showed that during active photosynthesis periods, $Y_1=282.443X_1+512.07$, and $Y_2=314.337X_1+16.913X_2$, while during dormant photosynthesis periods, $Y_1=391.009X_1+840.043$, and $Y_2=351.412X_1+32.765X_2$.

대구의 도시 에너지 전환과 에너지 자립 (Urban energy transition and energy autonomy in Daegu)

  • 최병두
    • 한국경제지리학회지
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    • 제16권4호
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    • pp.647-669
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    • 2013
  • 화석연료의 고갈과 국제 유가의 폭등, 기후온난화와 빈번한 환경 재난은 자원 및 환경 담론과 정책의 강화를 요청했으며, 이에 따라 지속가능한 발전의 개념이나 탄소 규제 전략에 바탕을 둔 정책들이 추진되어 왔다. 그러나 이러한 기존 개념이나 전략들은 신자유주의화 과정에 포섭되면서, 실효성이 있는 성과를 얻지 못했다. 이러한 점에서 새로운 전략적 규범적 개념으로 에너지 전환과 더불어 에너지 자립의 개념이 제시된다. 대구시는 비교적 일찍 에너지 문제에 관심을 가지고 솔라시티 정책을 추진해 왔지만, 거시적 배경에 편승하여 도시 에너지 문제를 제대로 대응하지 못했다. 이러한 점에서 이 논문은 대구시의 에너지 문제 실태와 정책의 의의와 한계를 살펴보고, 도시 에너지 전환과 자립을 위한 4가지 원칙, 즉 화석에너지 및 핵에너지에서 재생가능 에너지로의 전환, 공급주도형에서 수요관리 중심 정책으로의 전환, 중앙집중형에서 지역분산형 에너지 시스템으로의 전환, 그리고 시장의존적 관리에서 시민 참여적 에너지 거버넌스로의 전환 등을 제안하면서 이에 바탕을 둔 구체적 방안들을 제시하고 있다.

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함라마을 부농주거의 건축특성 연구 (The Study on the Architectural Characteristics of the Wealthy Farmhouses in Ham-Ra)

  • 유은미;홍승재
    • 한국주거학회논문집
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    • 제17권6호
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    • pp.99-108
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    • 2006
  • Ham-ra is a village that belongs to Ham-yuel Ri, Ik-san city and also known as the village where 4 millionaire modem age rich farmer households are residing in the center of the village. Originally, central point of the village was Gaeksa and Hyanggyo that is in Suodong, but early 1900s, rich farmers found new Places beside Suodong and built large-scale houses and around it, houses of tenant and commercial places were formed and became the new center of the village. Therefore, Ham-ra village shows well about the changes of the traditional village in the end of Chosun Dynasty aspect that of existent village space according to rich farmer's growth. Especially, the large scaled Korean traditional houses which were built newly in the year between 1917 to 1939 shows main road and Natural stream surrounding the village which are not found in any other village. 3 rich farmers (Lee Bae-won, Jo Hae-young, Kim An-gyun house) and Lee Jib-cheon's houses built a large scaled Sarang-chae and An-chae to compete and to show off there wealth. This residing imitated High-classe house yet accommodated social changes and through a voluntary experiment, is expressing modernity of Han-ok very well. Similarity and creativity in residing form appears well in buildings similar time and village. This research analyzed space composition change of the village and characteristic of Architecture who appear at modern process of typical farmer houses which make a strong resolution to Ham-ra hereupon.

Seismic risk estimation of the Kirikkale province through street survey based rapid assessment method (SSRA)

  • Sonmezer, Yetis Bulent;Bas, Selcuk;Akbas, Sami Oguzhan
    • Earthquakes and Structures
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    • 제14권6호
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    • pp.615-626
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    • 2018
  • The seismic vulnerability of Turkey is relatively high due to its active fault systems with potential to create destructive earthquakes. Thus, reducing the loss of life and property, the number of the earthquake-prone buildings and their retrofit requirements are considerably significant key issues under the scenario earthquakes. The street survey based rapid assessment (SSRA) method can be considered as a powerful tool to determine the seismic vulnerability of building stock of an earthquake-prone city/state. In this study, the seismic vulnerability of the building stock of the Kirikkale province in Turkey is aimed to be estimated adopting the street survey based rapid assessment method (SSRA). For this purpose, central 2074 existing reinforced concrete (R/C) buildings were structurally surveyed with rapid visual site screening and disadvantages such as, the existence of short-column, soft-story, heavy overhangs, pounding effect and local soil conditions were determined for obtaining the structural performance score of each. The results obtained from the study demonstrate that 11-25% of the surveyed buildings in the study region needs to be investigated through more advanced assessment methods. Besides, higher correlation between increasing story number and unsafe/safe building ratio is obtained for the buildings with soft-story parameter than that for those with heavy overhangs and short-column parameters. The conformity of the results of the current study with the previous documented cases of rapid assessment efforts in the recent earthquakes in Turkey shows that the SSRA method for the Kirikkale province performed well, and thus this methodology can be reliably used for similar settlement areas.

The Emergence of the Sharing Economy: The Response Strategies of Pre-existing Taxi Industry Affected by Uber's Disruption

  • Kim, Kibum;Lee, Jeong-Dong
    • STI Policy Review
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    • 제7권2호
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    • pp.60-84
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    • 2016
  • What impact does the sharing economy have on existing businesses? This paper empirically examines how Uber transformed the taxi industry in New York City. Using a regression model controlling various potential influencing factors, we find no direct evidence that daily trips or revenue per taxi driver decreased since Uber entered the taxi industry. However, a closer investigation into other dimensions of taxi trips reveals that taxi drivers were forced to change their way of doing businesses to retain existing daily trips and revenue. Since Uber crowded out yellow taxis from the central area of Manhattan, yellow taxis responded by serving customers outside of the Manhattan borough. From enlarging their geographical coverage and serving customers that were previously ignored, yellow taxis were able to retain their previous level of taxi trips and market share. We also find that yellow taxis responded by improving their service quality to better serve customers' needs. Our result suggests that incumbents actively responded to Uber's entry and provided substantial benefit to consumers. Combined with the incumbent's response, the sharing economy transformed the existing market in a welfare-enhancing way. This paper provides managerial and policy implication on how incumbents affected by the disruptions of the sharing economy should respond. Even though it might be yet premature to examine the impact of Uber, results suggest that incumbents have effectively defended against Uber's entry so far. We conclude that the sharing economy and the existing economy can create positive value in our society through well-intentioned competition, complementing each other's weaknesses and strengths.

남산 삼림 토양에서의 효소 활성도와 중금속 함량에 관한 연구 (Studies on the Enzyme Activities and Heavy metals of Forest Soil in Mt. Nam. Seoul)

  • 이인숙;박진성;김옥경;조경숙
    • The Korean Journal of Ecology
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    • 제21권5_3호
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    • pp.695-702
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    • 1998
  • This study was carried out to investigate to determine seasonal variation of dehydrogenase activity, phosphatase activity, adenosine tri-phosphate content and some physicochemical properties, such as soil pH, moisture content, organic matter and several heavy metal concentrations from Apr. 1997 to jan. 1998 in Pinus densiflora and Quercus mongolica forest in Mt. Nam, to explain a relationship between enzyme activity and the soil factors. There were ranges of 4.03-4.65 in soil pH, 18.65-51.09% in moisture content and 6.69-95.95% in orgainc matter. The organic matter content decreased with soil horizon, showing the higher values in Q. mongolica forest. In comparison to the results of Kawngneung site as control area, there were slightly differences due to a development level of forest ecosystem and microbial degradation of organic matter. The heavy metal concentrations showed 32.50-75.55 ${\mu}g/g$ in Cu, 69.33-134.84 ${\mu}g/g$ in Zn, 57.02-150.32 ${\mu}g/g$ in Pb, and 0.36-1.00 ${\mu}g/g$ in Mt. Nam. These values are higher than in Kwangneung site because of long-term exposure to air pollutants from central city. On the other hand, ATP contents in Mt. Nam were lower than in Kawngneung site in relation to soil organic matter, moisture content and relatively high heavy metal concentrations. ATP contents per soil weight was largest in F+H layer and in spring time of other seasons. Dehydrogenase activity as an index of soil microbial activity had a ranges of 170.67-1,221.66 ${\mu}g$ TPF/g that showed lower values than in Kawngneung site. However, phophatase activity had a contray tendency due to P fertilization for a continuous management. Those values increased through spring to a maximum in the summer and fall in autumn. This is basically caused by metabolic state of soil on the biological activity and several and several factors, such as aeration, soil temperature, vegetation and microflora.

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서울 남산공원의 식생변화 (Vegetational Changes of Mt. Nam Park, Seoul)

  • 임양재;양금철
    • The Korean Journal of Ecology
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    • 제21권5_3호
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    • pp.589-602
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    • 1998
  • Mt. Nam (265m), a city park of Seoul, was originally covered with a typical deciduous broad-leaved forests in Central Korea. However, the park forests have been changed the development for various purpose such as the construction of castle wall, road way, broadcasting station, theater, hotel and apartments, in addition, to thoughtless plantation or alien plant introduction. Human population growth from ca. 100 thousands persons less in that time established Seoul as the capital of choseon dynasty in 1394 to ten millions over persons at present, accelerated the vegetational changes of the park. mt. Nam boundary in those days of sunjong (1908) also was much shrinked as much the range of 300 m distance in the northern most to 700 or 800m distance in some places. The actual vegetation of Mt. Nam largely can be classified by floristic composition into two plant communities of Quercus mongolica community and Pinus densiflora community, four plantations of Pinus rigida, Robinia pseudo-acacia, Populus tomentiglandulosa and other tree species, and on mixed forest with native and alien tree species in secondary succession stage (Yim et al. 1987). The restoration movement of Mt. Nam toward to the natural condition of forest or biodiversity is moving now. However, in the movement there are some problems such as the lack of ecological consideration and the undesirable decision of priority in the practice. A warning should be given, especially, on the undesirable plantation of non-native tree species restricting the forest succession, as in the case of southern slope of Mt. Nam. First of all, the most importance in Mt. Nam management is that the restoration for natural forest and biodiversity should be carried on the basis of integrated ecological principles based on the site evaluation.

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한국의 지역발전정책-과거, 현재, 미래 (Regional Development Policy in Korea-Past, Present and Future)

  • 장재홍
    • 한국경제지리학회지
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    • 제12권4호
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    • pp.576-596
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    • 2009
  • 지역발전을 위해서는 부가가치 창출률이 높고 규모의 경제 및 집적의 경제를 극대화할 수 있는 지역경제시스템을 구축할 필요가 있다. 이러한 우리나라의 지역정책 과제를 세계은행이 지역발전의 관건으로 제시한 3D(density, distance, division)의 관점에서 논하였다. 참여정부의 국가균형발전정책을 논평하고, 광역경제권별 글로벌 경쟁력 강화를 핵심으로 하는 새 정부의 지역발전정책의 실효 있는 추진을 위한 전략과 정책과제를 제시하였다. 광역경제권 중추도시의 기능 강화, 중추도시-중소도시-농산어촌의 상호보완성 활용의 극대화, 시 도간 협력 장애요인의 제거가 필요하며, 광역경제권 간의 동반발전을 통한 국가적 결속의 강화도 중요한 과제이다.

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