• Title/Summary/Keyword: East-West Direction

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Fishing Conditions of Common Squid (Todarodes pacificus Steenstrup) in Korean Waters I. Spatio-Temporal Distribution of Common Squid Related to the Changes in Oceanographic Conditions (한국 연근해 오징어의 어황 특성 I. 해양환경의 변동에 따른 오징어의 분포)

  • CHOI Kwang-Ho;HWANG Sun-Do;KIM Ju-Il
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.30 no.4
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    • pp.513-522
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    • 1997
  • Annual variations In main fishing grounds of common squid with different angling and their fishing conditions in Korean waters were studied by analyzing catch and water temperature data. The main fishing grounds of squid angling fishery started to moved to the north in April and to the south in September in the last Sea of Korea. The catch of squid was related to the direction of thermal fronts. The catch was high when the thermal front was formed in the east-west direction, while there was low catch when the thermal front was formed in the south-north direction which runs parallel to the roast.

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A Study on the Relationship between Urban Block Division and Unit Plans of Korean Modern Traditional Style Houses - Focused on the Ikseon-Dong 166 - (도시형한옥 주거지의 블록구획과 주거평면의 관계에 관한 연구 - 익선동 166번지 사례를 중심으로 -)

  • O, Ukn;Seo, Hyun
    • Journal of architectural history
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    • v.22 no.3
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    • pp.7-14
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    • 2013
  • Ikseon-Dong 166 is one of the traditional urban resident area developed during 1930's. The purpose of this research is to analyze the structural relationship between a conventional housing unit plans and modern block plans based on orthogonal geometry. To fully explore the selling point of the new urban development, the planner or real estate developer in private sector did not abandon or compromise the conventional house layouts, consists of single layer of rooms keeping the main room facing south. This study concludes the following factors connecting the urban and architectural plans. Oblong block plans following east-west direction did not allow the southern exposure of courtyard and main room, which was the absolute requirement for traditional house units, the longer side of block plan followed north-south direction as a result. Considering the possibility of rent, having entrance at the east or west side of individual site enables two separate household maintain their spatial privacy. In addition to the factors mentioned above, when the blocks are to be divided into individual addresses, north-south oblong block plans maintained the length to face the front road minimum while the southern exposure maximized. These factors explains why the private developers maintained their blocks elongated to north-south direction when the block plans laied out by public sectors which did not care that much of southern exposure show random orientation in the view point of solar exposure.

Analyses of Correlation Between Groundwater Movement and Tidal Effect in West Costal Landfill Area (서해안 매립지 내 지하수유동과 조석에 관한 상관성 분석)

  • Park Jong-Oh;Song Moo-Yaung;Park Chung-Hwa
    • The Journal of Engineering Geology
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    • v.16 no.3 s.49
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    • pp.293-300
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    • 2006
  • The groundwater movement in the west costal landfill area was analyzed by measuring N value by Standard Penetration Test, coefficient of permeability by falling head method, linear structure analysis by Digital Elevation Method, groundwater flow direction and rate by flowmeter logging due to tidal variation in the each borehole. The coefficients of permeability of the weathered zone and of the marine deposit showed similar values although some values of weathered zone show smaller values than those of the marine deposit. The major groundwater flow and rate in the marine deposit observed as east-west direction due to tidal variation, but on the other hand it was observed as N45E in weathered zone which is the major direction of the linear structures in the area. 2 hours delayed changes of the groundwater flow direction was observed during the 24 hours observation, and it seems to be a travel time of the tidal wave which cause the continuous change of the hydaulic gradient of the groundwater.

Effect of Canopy Reforming on Light Penetration into Crop Community and Yielding in Corn (옥수수 초형교정이 군락 투광성 및 수량성에 미치는 영향)

  • 이호진;조명제;이홍석
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.30 no.1
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    • pp.76-83
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    • 1985
  • A hypothesis that artificial reforming of corn canopy could improve solar light penetration and dry matter production was tested in corn fields (var. Suwon 19) with three planting densities; low (60 ${\times}$ 40cm), medium (60 ${\times}$ 24cm) and high (60 ${\times}$ 16cm). Natural canopy was found that leaf orientations were even over all azimuth but somewhat inclined toward north-south direction and leaf angle ranged 38$^{\circ}$ to 71$^{\circ}$ from horizontal surface. Reforming corn canopy included following treatments: 1) natural canopy planted in north-south rows (natural canopy), 2)east-west plane canopy planted in north-south rows (E-W canopy), 3)east-west plane canopy and upright leaves in north-south rows, 4)north-south plane canopy (N-S canopy) in east-west rows. After corn plots were installed with training system by supporting poles and connecting wires, corn leaves were induced to a reforming direction and tied on wire. Average light intensity at the mid-point of plant height showed 5-10% increases in E-W canopy and in E-W canopy plus upright leaves, but a 2-10% decrease in N-S canopy from natural canopy. At yellow ripe stage, total dry wt. was increased in E-W canopy but not in N-S canopy. The E-W canopy produced 3-10% more grain yield than natural canopy. Though E-W canopy plus upright leaves yielded less at low density, it yielded up to 10% more at higher density. The N-S canopy yielded similar to low compared with natural canopy. These results suggests that reforming canopy toward solar incident direction increases light penetration into lower canopy, photosynthetic efficiency and grain yield, especially at high planting density in corn.

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MOLECULAR CLOUD ASSOCIATED WITH AFGL 2591

  • Minh, Y.C.;Yang, Ji
    • Journal of The Korean Astronomical Society
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    • v.41 no.5
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    • pp.139-145
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    • 2008
  • The molecular cloud, embedding AFGL 2591, has a "head-and-tail" structure with a total mass of ${\sim}\;1800\;M_{\odot}$, about half of the mass (${\sim}\;900\;M_{\odot}$) in the head (size ${\sim}\;1.2\;pc$ in diameter), and another half in the envelope (${\sim}\;3.5\;pc$ in the east-west direction). We found a new cloud in the direction toward north-east from AFGL 2591 (projected distance ${\sim}\;2.4\;pc$), which is probably associated with the AFGL 2591 cloud. The $^{12}CO$ spectrum clearly shows a blue-shifted high-velocity wing at around the velocity $-20\;{\sim}\;-10\;km\;s^{-1}$, but it is not clear whether this high-velocity component has a bipolar nature in our observations. The observed CN spectra also show blue-shifted wing component but the existence of the red-shifted component is not clear, either. In some CN and HCN spectra, the highvelocity components appear as a different velocity component, not a broad line-wing component. The dense cores, traced by CN and HCN, exist in the 'head' of the AFGL 2591 cloud with an elongated morphology roughly in the north-south direction with a size of about 0.5 pc. The abundance ratio between CN and HCN is found to be about 2 - 3 within the observed region, which may suggest a possibility that this core is being affected by the embedded YSOs or by possible shocks from outside.

Relations between Wave and Wind at 5 stations around the Korean Peninsula (한반도 주변 해역 5개 정점에서 파랑과 바람의 관계)

  • Ko Hee-Jong;Pang Ig-chan;Kim Tae-hee
    • Journal of the Korean earth science society
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    • v.26 no.3
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    • pp.240-252
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    • 2005
  • The relationships between wave and wind around the Korean Peninsula have been analyzed with the data from the buoys moored at five stations (Dugjug-do, Chilbal-do, Geomoon -do, Geoje-do, Donghae) by Korea Meteorological Administration. Generally, the relationship between wave and wind is the highest at the stations in the West Sea and the lowest at the stations in the South Sea, and the middle at the station in the East Sea. The characteristics shown at each station are as follows. Highest wave is developed at Chilbal-do with strong northwesterly wind in winter because the sea is opened in the wind direction and wave is amplified by shoaling effect. At Chilbal-do, wave directions coincide with wind directions relatively well. On the other hand, waves are not fully developed at Dugjug-do in winter due to limited fetch since the sea is blocked by Hwanghae-do in the northwest direction. The limitation in fetch is more serious at the stations in the South Sea. In the South Sea, the direction of dominant northerly wind is blocked by land so that wave heights are small even with very strong northerly wind. In the South Sea, whatever wind direction is, waves dominantly come in the direction from the East China Sea, which are from the south at Geomoon-do and the southwest at Geoje-do. At these directions, waves are coming even with weak wind. At the station in the East Sea, waves are highly developed due to vast area, but not so high as in Chilbal-do because wind and wave directions do not coincide in many cases. As shown, wind direction is important in the wave development as well as wind speed. The reason is that the fetch is determined by wind direction. In the case of long-lasted wind with fixed direction at Chilbal-do and Dugjug-do, wave directions are well coincident with wind directions and wave heights increase with response time, which is the duration between the highest wind and wave. However, in the case of disagreement between wind and wave directions at the station in the East Sea, wave heights do not increase as highly as at Chilbal-do and Dugjug-do in spite of strong wind and longer response time. The results show us that waves are highly developed with strong wind, long fetch, and long duration, and also show that wave development ratios are different at different stations due to environmental factors such as the direction towards sea or land, bottom topography, and the scales of adjacent seas.

A Simple Model of the Formation of Thermo-haline Front in the Southeastern Yellow Sea in Winter

  • Seung, Young-Ho;Shin, Sang-Ik
    • Journal of the korean society of oceanography
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    • v.31 no.1
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    • pp.23-31
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    • 1996
  • The thermo-haline front frequently observed near the southwestern tip of Korean Peninsula is successfully modeled using a simple model. The front is formed by the wind-driven advection of local cooled water to the southern warm area which is kept warm by large heat advection of the Tsushima Current. The front thus locates north of the Tsushima Current which runs approximately along the isobaths in the east-west direction.

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A Study on Joints, developed in Tobong-san Area

  • Kim, Joo-Hwan
    • Journal of the Speleological Society of Korea
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    • no.65
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    • pp.1-10
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    • 2004
  • Joint reflects the structure of the earth. And in many cases joints controls the developments of stream directions. In this studying area three joint sets are represented. One is concentrated to the north and the other is deviated $50^{circ}-60^{circ}$ from north to east and west. It is uncertain that the master joint set is a fault line, but the presence of the structural line is evident from the joint strike frequency. The Spearman's $\Upsilon$ between joint patterns and the stream directions is about 0.73.

A study on the Site Planning of the Dwellings in Hahoe Village (하회마을의 주택 배치에 관한 조사 연구)

  • 정명섭;혼마히로부미;호야노아키라;황정하;도근영;스가와라마사노리
    • Journal of the Korean housing association
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    • v.11 no.3
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    • pp.19-27
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    • 2000
  • The purpose of this study is to examine exposure and direction in slope as well as entrance of site in order to research the site planning of the dwellings in Hahoe Village. In this study, the survey data during seventeen month from April 1998 to August 1999 was measured and analyzed. The result of this study were as follows ; 1) The rate of exposure and direction in slope as well as entrance of site was find out in order of the south(30~38%).east(22~28%).north(21~24%).west(14~22%) aspect. Among others, exposure was most due south.southeast.southwest aspect. 2) The interrelation of exposure and direction in slope as well as entrance of site was find out high within the limits of general visible.

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A Literature Review on Effect of Massage Based on Developmental Stage in Children in Korea (아동 발달단계에 따른 마사지 중재효과에 대한 국내연구 고찰)

  • Lee, Jae Young;Park, So Yeon
    • Journal of East-West Nursing Research
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    • v.22 no.1
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    • pp.1-9
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    • 2016
  • Purpose: We conducted a literature review for analyzing the effect of massage on children according to their developmental stage in Korea. Methods: Various academic databases were utilized for a bibliographic search, and the keyword, 'massage', was used to identify relevant references without limits on years to determine the overall research trends. Finally, 38 references cited from 1998 to 2014 were selected in Korea. Results: Only two studies adapted a randomized controlled trial design. With regard to children's developmental stage, half studies were conducted for neonates. Moreover, the percentage of application of a sensory stimulation protocol in newborn infants was 47.3%. Eighty four point one percent of studies measured physiological characteristics as outcome variables and the rate of growth was the most common (46.5%) physiological characteristic. On the contrary, only one study (4%) was conducted to evaluate the effect of massage on psychological characteristics in school aged and the adolescents. Conclusion: This study provides fundamental data on the development and direction for future studies by analyzing studies on pediatric massage in Korea.