• The Journal of Sustainable Design and Educational Environment Research
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• v.16 no.2
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• pp.34-43
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• 2017

The purpose of this study is to provide a basis for determining when a school established long term school plans accepted by analyzing the trend of increase or decrease elementary school students 30 years to target of following nine cities, 552 elementary schools in Korea - 4 metropolitan cities(Ilsan, Bundang, Jungdong, Pyungchon, Sanbon, Dongtan and Kwangkyo), 4 central regional cities (Chunan, Asan, Seosan and Nonsan), 3 south-eastern regional cities(Pohang, Woolsan, Jinju, Changwon and Kyungsan) and 4south-western regional cities(Kwangju, Jeonju, Suncheon and Kunsan) for this purpose. Results of this study are as follows: First, the most common type was type 5, accounting for 56.8% (658) of the total, followed by type 11 (12.8%), type 13 (7.9%), type 15 (5.6%). Of the total 15 types, type 1, type 3, type 7 and type 14 accounted for less than 1% of the total. Second, the results of the Conflict Model I and Conflict Model II showed that Type1 and Type7 were not needed to be adopted.

• Korean Journal of Breeding Science
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• v.43 no.3
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• pp.201-205
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• 2011

'Hangangchal 1' is a new glutinous rice cultivar of second generation Tongil-type with a mid-maturing ecotype that developed by the rice breeding team of Yeongnam Agricultural Research Institute (YARI), RDA. in 2006. This cultivar was derived from a cross between 'Hangangchal', a Tongil-type glutinous cultivar and 'YR8208-20', a high yield potential in 1986/1987 winter season. 'Hangangchal 1' was selected by pedigree and bulk breeding methods from $F_3$ to $F_6$ populations. A promising line, YR10498-8-1-3, was selected and designated as 'Milyang 167' in 1997. The local adaptability test of 'Milyang 167' was carried out at seven locations during 3 years in 1998, 2005, and 2006. It has tolerance to lodging with good canopy architecture as 87cm of culm length. This cultivar is resistant to bacterial blight $K_1$, $K_2$, and $K_3$ race, rice stripe virus, rice dwarf virus, and leaf blast disease. The milled rice endosperm of 'Hangangchal 1' is glutinous and its whiteness was almost similar compared to 'Shinseonchalbyeo'. The yield of milled rice of 'Hangangchal 1' was average 5.97 MT/ha at ordinary cultivation of 9 kg/10a N fertilizer level in local adaptability test. This cultivar would be adaptable to the mid and southern plain of Korea.

• Korean Journal of Soil Science and Fertilizer
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• v.31 no.3
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• pp.246-252
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• 1998

A survey was conducted to investigate the status of soils involving pH, electrical conductivity, total organic matter content, available phosphate and major exchangeable cations in the paddy soils sampled from 1,168 sites throughout the country. The content of soil chemical properties was lower on the average than the optimum levels for cropping. An average value showed pH 5.6, organic matter $25g\;kg^{-1}$, available phosphate $128mg\;kg^{-1}$, available silicate $72mg\;kg^{-1}$, and exchangeable potassium and the calcium and magnesium were 0.32, 4.0, $1.2cmol^+\;kg^{-1}$, respectively. Soil chemical properties was related with topography except soil pH. A soil pH and organic matter, available phosphate, exchangeable potassium increased with time while exchangeable calcium, magnesium available silicate decreased with time.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.41 no.2
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• pp.230-235
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• 1996

This study was conducted to investigate the effects of planting densities on sex change and fiber yield in hemp plants, local variety 'Gangweonjong' was planted with various planting densities (40 $\times$ 5, 40 $\times$ 10, 40 $\times$ 20, 60 $\times$ 5, 60 $\times$ 10, 60 $\times$ 20cm), and harvesting dates (June 24, July 9 and 24). The stem length was the longest in the space of 60x20cm(8, 333 plants per l0a). The diameters of stem was the thickest in the planting space of 40 $\times$ 20cm(12, 500 plants per l0a) The ratio of peeled fiber yield was the highest in the planting space of 40$\times$5cm(50, 000 plants per l0a). In general, the condition under denser planting space (40 $\times$ 5cm ; 50, 000 plants per l0a) led to an increase in the number of female plants.

• Korean Journal of Social Welfare
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• v.65 no.2
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• pp.5-28
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• 2013

This study was to examine the effects of individual and environmental character among adults with intellectual disabilities on self-determination and to address issue of self determination in practical terms. This study was analyzed by the Structural Equations Models with 219 individuals with intellectual disabilities in residential home in the Metropolitan area, the Yeongnam area, the Honam area. The results showed that individual factors such as adaptive behavior and provider-user relationship recognition, and environmental factors such as institution size and institution location were directly affected to the self-determination of them. The opportunity was a full mediating effect in this process. In conclusion, this study stated how importance of the consumerism. Also it was suggested that some practical strategies to improve their self-determination in changing residential environment and support methods of the service in way to emphasis their opportunities.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.313-336
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• 2007

Unlike a conventional railway system, a high-speed rail system experiences various aerodynamic problems in tunnel sections. Trains running at a high speed in a small tunnel, when compared with the open field, face significant air pressure, resulting in reduced operating stability and fast change in pressure inside the tunnel. These phenomena further cause some unexpected problems such as the passengers onboard feeling an aural discomfort and an impulsive noise at the tunnel exit. To solve these problems, this paper introduces analysis of aerodynamic characteristics for determination of tunnel cross section. The optimum cross-section that satisfies the criteria of aural discomfort was reviewed through lots of numerical simulation analysis. Also, the pressure inside the passenger car of a train operating on Kyungbu HSR line was measured, and the pressure inside the tunnel and the micro-pressure waves at tunnel exit were measured at Hwashin 5 Tunnel. At the same time, a test of train operation model was performed and then the measurement results and test results were compared to verify that various parameters used as input conditions for the numerical simulations were appropriate.

• Korea journal of population studies
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• v.22 no.1
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• pp.93-121
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• 1999

이 연구는 인천의 정체성을 알아보는 데 연구의 초점을 맞추었다. 연구방법으로는 실증적 방법과 민속학적 방법 두 가지를 병행하였다. 시민단체, 공무원, 학생을 대상으로 임의목적표본방법을 사용하여 총 613명이 분석되었다. 분석방법은 교차통계분석 및 다중분류분석을 하였다. 정체성은 한 지역에 거주하는 주민들의 집단결속력과 성취도를 결정하여 주며, 그 지역의 사회적 통합과도 밀접한 관련을 지니고 있어서, 지역의 문제나 관심사를 해결하고 발전시키는데 가장 핵심적인 요소이다. 인천의 정체의식은 세 집단 모두 낮으며, 전체응답자의 절반 이상은 그저 그렇다는 중용의 의견이었다. 인천에 대한 정체의식을 응답집단의 특성별로 보면 여자보다는 남자가 높고, 기혼자보다는 미혼자가 높으며, 30세 이상으로 연령이 많을수록, 수입과 생활수준이 낮을수록 정체의식이 상대적으로 높게 나타났다. 그리고 전문.관리.사무직보다는 판매.서비스.생산.농업직 종사자들의 정체의식이 높았다. 전문대 정도의 교육을 받은 시민의 정체의식이 상대적으로 높고, 인천의 문화.복지.환경개선을 위한 특별기금 기부의사가 있는 시민과 인천을 마음붙이고 살 곳으로 생각하는 시민의 정체의식이 높다. 총괄적인 의미에서 본 인천의 정체성에 관한 조사를 보면, 인천은 "주인의식 없음"과 "이제부터 만들어 가야 한다"는 답변이 제일 많았고 그 다음은 "포용력", "선구적 개척정신", "긍정적인 의미의 짠물", "합중시(合衆市)적 다양성", "외세에 대한 호국정신", "세계의 관문도시"로 나타났다. 이와 같은 응답유형으로 보아서는 인천지역에 대한 이미지를 한마디로 딱 잘라 말하기는 어렵다. 그러나 인천은 서울.경기인, 충청인, 호남인, 영남인, 이북인, 외국인 등을 가리지 않고 받아드리는 "포용력이 있는 합중시적 다양성을 가진 도시"로 지역차가 서로 다른 출신성분이 공존할 수 있다는 점에서 의미하는 바가 크다. 이는 "세계속의 도시"와 "동북아의 거점도시"를 추구하는 미래지향적인 시각에서는 지역주의를 지양하고 지역통합이슈와 세계화 물결속에서 외국인에게도 열린 상태문화를 제공하는 관문이 될 것이라는 면에서 인천이 추구해야 할 정체성으로 시사하는 점이라고 본다.는 미래지향적인 시각에서는 지역주의를 지양하고 지역통합이슈와 세계화 물결속에서 외국인에게도 열린 상태문화를 제공하는 관문이 될 것이라는 면에서 인천이 추구해야 할 정체성으로 시사하는 점이라고 본다.

• Journal of the Korean earth science society
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• v.26 no.5
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• pp.404-416
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• 2005

The seasonal and regional distribution of precipitation in Korea, terms of the amount of precipitation per day, number of days, and intensity was analyzed using precipitation data from 1971 to 2000. The significance level of the linear trend of these data was also investigated using the analysis of variance of each variable. The amount of precipitation per day less than 80 mm per day appeared in the Honam area which also shows a large number of precipitation day value during the fall and winter. However, the lowest amuont of precipitation per day was shown in the Youngnam area. The positive trend of the annual precipitation amount has also been detected in all stations except for a few station in Honam, and the positive trend of precipitation intensity is statistically significant in most of the stations at the Chungcheong and Gyeonggi area. The linear trend of precipitation intensity in these area is found to be significant at the $5\%$ level.

• Journal of the Korean association of regional geographers
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• v.11 no.2
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• pp.187-210
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• 2005

The purpose of this study is to examine the spatial characteristics of the longevity phenomenon and long-live areas in Korea where a rapid aging process is undergoing. Population data from 1966 to 2000 at the county level are analyzed to understand aging process and changes of longevity degree by regions. The relationship between the degree of longevity and a region's natural environments and distance to a metropolis has been analyzed to understand regional factors of longevity. The findings from the study are summarized as follows. Firstly, the rural regions in Honam show the highest degree of longevity in the nation. Secondly, the areas of the high degree of longevity has recently shifted and/or expanded from the islands and seashore areas of southwestern region to inland mountainous areas around Soback Mountain. Southern islands and seashore regions used to show the nation's highest degree of longevity in the 1970s. Thirdly, the analysis of regional environment factors indicated that longevity has more related to a precipitation and an average altitude than temperature. Fourthly, in order to identify the longevity factors in urban areas, social and economic factors should be considered beyond the natural environmental factors.

• Journal of Digital Convergence
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• v.18 no.2
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• pp.427-437
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• 2020

This article researched the changes of terrestrial local broadcasting companies in a crisis of management. According to the following: First, the structure of the internal organization of local broadcasting companies has been changed to put more emphasis on 'management'. Second, most of the interviewees responded that this change was an inevitable choice. However, some responded that their 'role identity' was changing in a negative direction. Third, these changes have led to the emergence of programs that could undermine public interest. It also showed an increase in the production of 'funding-based' programs and 'mobile first' programs.