• Title/Summary/Keyword: MOUNTAINS

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Production study of domestic railroad signal checking cycle (국내 철도신호 점검주기의 산출공식 연구)

  • Lee, Nam-Hyung;Lee, Soo-Hwan;Kim, Joung-Sun;Kim, Hyung-Chul;Lee, Gi-Chun
    • Proceedings of the KSR Conference
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    • 2007.05a
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    • pp.1685-1690
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    • 2007
  • Wave and following checking cycle arbor in the mountains form that examine various theories that decide checking cycle and data and application possibility that can acquire actually were presented. If see in standpoint that breakdown detects singularity availability before change happening, problem is advanced how action of device may do ordinary times supervision (monitoring) or checking cycle. In checking cycle decision, situation of latency breakdown that can not know that cause breakdown before device that is using examines can exist. Example such as car examination, faur and equitable spirit health examination, security device etc. can be fatal the time. Therefore, study and examined arbor in the mountains room of family proper checking cycle.

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A Study on the Style change of the Doryon-Line of the Chogori and the Dangeu in the Chosun dynasty-On the natural beauty theory and the roof style of the traditional architecture- (조선시대의 저고리와 당의의 도련선 양식 변화에 관한 연구-전통 건축양식중 지붕양식과 자연미 이론을 중심으로-)

  • 유은희
    • Journal of the Korean Society of Costume
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    • v.27
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    • pp.53-74
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    • 1996
  • The Doryon-Line is the lowest line of the Chechori and Dangeu and the length of the Chechori and the Dangeu have wide influence on the Doryon-Line. Also the change of the Doryon-Line is re-lated to the proportion the length the depth that is the curved proportion and the two curved proportion 0.04 and 0.13 are related to the roof style of the traditional architecture in Chosun Dynasty. The Chosun people have made a change the Doryon-Line monotonous in the 14C-15C but the Doryon-Line have been full of variety every fifty years in the 15C-18C. Especially Chosun people have been at war in the mountains and fields in the Doryon-Line are 0.06 and 0.07 in this period I think that the curved proportion 0.06 and 0.07 are symbolized the natural beauty in the mountains and trees of the Korea.

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The Developmental Stages of the Circumstances and Characteristics in Wentland - In the Gyunggi Do Mountains -

  • Moon, Hyun-Sook
    • Journal of the Speleological Society of Korea
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    • no.69
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    • pp.49-60
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    • 2005
  • This Study is about the wetlands in the GyunggiDo Mountains. It is written in the point of the hydrogeomorphology, geology, and soil. And it has accessed to ecological environment. Wetlands are divided into mountain wetlands and river wetlands by location, relief, processes, hydrology, and the type of inlet and outlet of water in wetlands. Mostly mountain wetlands are formed by the process of destruction of mountain slope. So they are to be located in the knickpoint. Therefore the underground surface is visible and underground water is rising or leaking. At this process, the environment forming wetlands are made by soil that was influenced by geology and composed by fine and very fine granules.

A Numerical Study on the Mechanism of Lee Vortex in the Lee of Large Scale Mountain

  • Kang Sung-Dae;Kimura Fujio;Lee Hwa-Woon;Kim Yoo-Keun
    • Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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    • v.1 no.1
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    • pp.45-50
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    • 1997
  • Understanding the nonlinear flow caused by orographic effects can be valuable in siting of new businesses, industries, and transportation facilities. In spite of recent work on large-amplitude waves and wave breaking, the studies of flow around large scale mountains have just begun. The generative mechanism of lee vortices in the lee of large scale mountain is investigated by Ertel's theorem. The CSU RAMS is used as a numerical model. According to the numerical results, the isentropes are depressed behind the large scale mountains. This means the vortex lines must run upward and downward along the depression surface because vortex lines adhere to isentropic surfaces. Therefore, the vertically oriented vorticity can be formed in the lee of the large scale mountain. This vorticity plays an important role for orographic precipitation, because strong vertical velocity and cloud bands are developed along isothermal deformation surface.

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A Floristic Study of Carpathian Natural Protected Area in Ukraine

  • Kim, Hyuk-Jin;Kim, Dong-Kap;Choi, Kyoung;Park, Kwang-Woo;Kim, Joo-Hwan
    • Korean Journal of Plant Resources
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    • v.23 no.3
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    • pp.256-260
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    • 2010
  • We performed the floristic study of Carpathian mountains in Ukraine from April 2008 till October 2009. We designated eight important areas to investigate in Ukraine Carpathians including Svydovets, Chornohora, Kuziy-Trybushany, Maramorosh, Uholka-Shyrokyi Luh, Narcissi Valley, Chorna Hora, and Yulivska Hora. The total numbers of vascular plants in investigated area were 1,349 speices from 502 genera and 112 families. The endemic species to Carpathians numbered to 65 from 49 genera belonging to 24 families, and it was corresponded to 4.8% of the 1,349 vascular species. We prepared the list of vascular plants with compiling database on useful plants. Ukraine Carpathians endemic species could be applied as high value products in research and practice. Moreover, the flora of Carpathian mountains which is distributed in five nations in eastern Europe and famous for Primeval Beech Forests (Fagus sylvatica), is useful to compare the floristic study with Korean flora.

A Cytotaxonomic Study on Chrysanthemum zawadskii Complex in Korea (2) Polyploidy (한국산 구절초무리의 세포분류학적 연구;(2) 배수성)

  • 이영노
    • Journal of Plant Biology
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    • v.12 no.1
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    • pp.35-48
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    • 1969
  • This study was made on the taxa Chrysanthemum zawadskii complex that grow in South Korea on the basis of chromosomes, epidermis, pollens and gross morphology. I have found four types of chromosome numbers, 36, 45, 54, and 72 as a polyploidal series. Even though the gross morphology was quite similar almost the same gross morphology, chromosome number was different among the taxa. The taxa of 36 chromosomes present broad and fine lobed leaves which grow separately, broad leafed taxon in the mainland of Korea and the other's in Ullungdo Island which is isolated form the mainland in the East Sea. The taxa of 54 chromosomes are also present in the broad and in the fine lobed leaves. The fine lobed leave taxon grows in central to northern Korea and in the high altitude of mountains. Broad leafed taxon grows in central to southern Korea and comparatively lower altitude of the mountains. The taxon of 72 chromosomes is grown in the high altitude of Mt. Hallasan which is isolated from the mainland of Korea. According to this study of Chrysanthemum zawadskii complex, I have arranged the scientific names, as Chrysanthemum zawadskii subsp. latilobum, subsp. acutilobum, subsp. naktongenese, subsp. lucidum, subsp. coreanum and hybrid between subsp. acutilobum X subsp. latilobum.

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A Numerical Study on the Mechanism of Lee Vortex in the Lee of Large Scale Mountain

  • Sung-Dae Kang;Fuj
    • Journal of Environmental Science International
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    • v.1 no.1
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    • pp.45-50
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    • 1992
  • Understanding the nonlinear flow caused by orographic effects can be valuable in siting of new businesses, industries, and transportation facilities. In spite of recent work on large-amplitude waves and wave breaking, the studies of flow around large scale mountains have just begun. The generative mechanism of lee vortices in the lee of large scale mountain Is investigated by Ertel's theorem. The CSU RAMS is used as a numerical model. According to the numerical results, the isentropes are depressed behind the large scale mountains. This means the vortex lines must run upward and downward along the depression surface because vortex lines adhere to isentropic surfaces. Therefore, the vertically oriented vorticity can be formed in the lee of the large scale mountain. This vorticity plays an important role for orographic Precipitation, because strong vertical velocity and cloud bandy are developed along isothermal deformation surface.

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Distribution of Stream Incision Rates in the Northern Part of the Taebaek Mountains (태백 산지 북부의 하천 하각률 분포)

  • Lee, Gwang-Ryul
    • Journal of The Geomorphological Association of Korea
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    • v.25 no.4
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    • pp.1-19
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    • 2018
  • This study tries to identify distributional characteristics of stream incision rates at 23 points in the northern part of the Taebaek Mountains. Soyang-gang, Naerin-cheon, Odae-cheon, Dong-gang and upper reaches of Okdong-cheon Rivers closed to the Range show higher incision rates and the rates clearly decrease with distance from the Range. Therefore, the incision process in the northern part of the Range has been greatly influenced by uplift around the Range, and the Sobaek Mountain Range seem to play a role in the incision process. Limestone areas show lower incision rates due to degradation of terrace surface by dissolution. This study suggests that local hydrological, geological and geomorphological conditions can be regarded as an important factor in stream incision rates, although stream incision rates are greatly influenced by regional uplift.