• Title/Summary/Keyword: local characteristics

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Profile Analysis on Signal Measured Local Ice Load during Icebreaking in Arctic Sea (북극해에서의 쇄빙시 국부 빙하중 계측 신호에 대한 파형 분석)

  • Jeon, Young-Ju;Rim, Chae-Whan;Lee, Tak-Kee
    • Journal of Navigation and Port Research
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    • v.37 no.2
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    • pp.143-148
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    • 2013
  • The aim of this study is to investigate the characteristics on the profile of local ice load acting on side shell of port side in bow part due to broken ice during icebreaking of ships in ice covered waters. The first Korean icebreaking research vessel 'ARAON' had a sea ice field trial in the Arctic Sea during early August, 2010, and the signals due to local ice impact measured from several strain gauges installed at bow part were gathered. It is known that these data with structural response characteristics due to local ice impact have some different characteristics with a typical hydraulic impact pressure - time history. In this study, the time history on the measured signals was analyzed and the characteristic values were presented using non-dimensional parameters.

Red Ginseng Quality and Characteristics of KG101 a Promising Line of Panax Ginseng C.A. Meyer (인삼 우수계통 KG101의 생육과 홍삼품질)

  • 권우생;강제용
    • Journal of Ginseng Research
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    • v.22 no.4
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    • pp.244-251
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    • 1998
  • KG101 was developed by the Korea Ginseng & Tobacco Research Institute. We reported about yield trials and local adaptability test. Growth characteristics and red ginseng quality of KG101 in local performance test can be summarized as follows. Aerial parts growth, stem and leaf, was similar about KG101 and Jakyungjong, 4-year old and 6-year old ginseng. Emergence rate of KG101 was higher than Jakyungjong in the 3 location of local performance test. Taproot diameter of KG101 was smaller than Jakyungjong and taproot shape of KG101 had fitted characteristics, radish type and human body type, to manufactured red ginseng. Raw ginseng grade, 1st and 2nd of KG101 was higher than Jakyungjong's. Chun, Jeesam ratio to manufacture of 2nd grade of raw ginseng of KG101 was 25%, Jakyungjong was 6-13% in 3 location of local performance test. Distribution of red ginseng weight of Jakyungiong was heavier than KG101 in 2 location, Kongju and Jungup, but KG101 was heavier than Jakyungjong in Ichon. Red ginseng quality of KG101 was better than Jakyungiong. Main degrade factor of red ginseng quality was inside cavity and inside white, was not different lines and location.

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Heat transfer characteristics of impinging flat plate of multiple slot jets by changing of jet-to-jet distance (배열 슬롯제트의 노즐간격 변화에 따른 충돌면에서의 열전달 특성)

  • Chung, In-Kee;Park, Si-Woo;Hong, Sung-Ho;Ko, Wan-Wook
    • Proceedings of the KSME Conference
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    • 2001.06d
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    • pp.534-539
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    • 2001
  • An experimental investigation of heat transfer characteristics on confined jet impinging plate using multiple slot jets has been performed. The effects of jet Reynolds numbers(Re=2000, 3950, 5900, 7900), dimensionlesss slot-to-plate distances(H/B=2, 4, 6, 8) and jet-to-jet distances(S=16B, 20B, 24B, 30B) on the local and average heat transfer coefficients have been examined. To clarify local heat transfer characteristics, naphthalene sublimation technique were used. From the experimental results, it was found that the local and average heat transfer rates increase with increasing jet Reynolds number. Measurements of local heat transfer coefficients produced by multiple of slot jets have given an indication of the nature of the interaction between jets and of the uniformity of heat transfer obtainable with various arrangements. At S/B=20, Re=7900 and H/B=6, maximum average Nusselt number is obtained.

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A Study on the Layout and Floor Plan of Hyangkyo Architecture at Youngseo districts in Gangwon-do (강원 영서지방 향교건축의 배치 및 평면특성에 관한 연구)

  • Rim, Sang-Kyu;Chai, Hee-Jai
    • Journal of the Korean Institute of Rural Architecture
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    • v.13 no.4
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    • pp.9-16
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    • 2011
  • This study aims to research the local characteristics of layout and floor plan at Hyangkyo Archiecture in Youngseo districts of Gangwon-do. Hyangkyo which were the institutional places of Chosun Dynasty used for stability and order of the dynasty as well as for the education of people. This thesis studies and analyzes the regularity which appears in the formation of architecture mainly in the aspects of layout, plane formality. Jeon-hak-hoo-myo is the arraying formality in which Myungryundang and Daesungjun are placed on a line of one axis with Myungryundang placed lower in the front and Daesungjun place higher in the back and this formality is applied for a land that slopes. The layout formation of Gangkak space is divided into Jeonjaehudang-type and Jeondanghujae-type. This study analyze arrangement type and plane characteristics about local old time school belonging to the Confucian shrine construction at Youngseo districts in Gangwon-do, there is purpose of research to wish to clear the regional special quality of local old time school belonging to the Confucian shrine construction at Youngseo districts in Gangwon-do.

Heat transfer characteristics of multiple slot jets at the surface of protruding heated blocks (돌출 발열블록 표면에서의 배열 충돌제트에 의한 열전달 특성)

  • Chung, In-Kee;Park, Si-Woo;Hong, Sung-Ho
    • Proceedings of the KSME Conference
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    • 2001.11b
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    • pp.274-279
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    • 2001
  • An experimental investigation of heat transfer characteristics at the surface of two-dimensional protruding heated blocks using confined impinging multiple slot jets has been performed. The effects of jet-to-jet distances(S=16B, 24B), dimensionless nozzle-to-block distances(H/B=2, 6) and jet Reynolds numbers(Re=2000, 3900, 5800, 7800) on the local and average heat transfer coefficients have been examined with five isothermally heated blocks at streamwise block spacing(p/w=1). To clarify local heat transfer characteristics, naphthalene sublimation technique was used. From the results, it was found that the local and average heat transfer of heated blocks increases with decreasing jet-to-jet distance and increasing jet Reynolds number. Measurements of local heat transfer coefficients have given an indication of the nature of the interaction between jets and of the uniformity of heat transfer obtainable with various arrangements. In the case of S/B=16, H/B=6 and Re=7800, maximum average Nusselt number of overall blocks was obtained.

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Analyzing Factors and Impacts of Regional Characteristics to Regional Economic Growth in South Korea (우리나라의 지역 특성이 지역 경제 성장에 미치는 요인과 영향 분석)

  • Kim, Geunyoung
    • Journal of Urban Science
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    • v.9 no.1
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    • pp.41-49
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    • 2020
  • This study analyzed the factors affecting economic growth using multiple regression model and Geographically Weighted Regression in consideration of population, industry and employment, housing and political characteristics on economic growth by region. The analysis results are summarized as follows. First, the total employment growth rate, manufacturing employment growth rate, local election turnout and the level of party consensus between the central and local governments are having a positive impact on regional economic growth. Second, according to the GWR analysis, the population has a positive impact on economic growth in the southern region of Korea, and the increase in the total number of employees has a positive impact on the southern region of Gyeonggi Province, Gangwon Province, North Chungcheong Province and North Gyeongsang Province. Finally, the voter turnout of urbanites is positively affecting economic growth in South Chungcheong Province, Gangwon Province and the southern coast, while North Jeolla and South Jeolla provinces have a positive impact on economic growth as the parties of the central and local governments are equal. The results of this study may suggest the role of local government for regional economic development.

A Study on the Layout and Floor Plan of Hyangkyo Architecture at Youngdong districts in Gangwon-do (강원 영동지방 향교건축의 배치 및 평면특성에 관한 연구)

  • Rim, Sang-Kyu;Chai, Hee-Jai
    • Journal of the Korean Institute of Rural Architecture
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    • v.12 no.4
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    • pp.53-60
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    • 2010
  • This study aims to research the local characteristics of layout and floor plan at Hyangkyo Archiecture in Youngdong districts of Gangwon-do. Hyangkyo which were the institutional places of Chosun Dynasty used for stability and order of the dynasty as well as for the education of people. This thesis studies and analyzes the regularity which appears in the formation of architecture mainly in the aspects of layout, plane formality. Jeon-hak-hoo-myo is the arraying formality in which Myungryundang and Daesungjun are placed on a line of one axis with Myungryundang placed lower in the front and Daesungjun place higher in the back and this formality is applied for a land that slopes. The layout formation of Gangkak space is divided into Jeonjaehudang-type and Jeondanghujae-type. This study analyze arrangement type and plane characteristics about local old time school belonging to the Confucian shrine construction at Youngdong districts in Gangwon-do, there is purpose of research to wish to clear the regional special quality of local old time school belonging to the Confucian shrine construction at Youngdong districts in Gangwon-do.

A Study on the Disposition Characteristics of Educational Facilities due to the Expansion of Jinhae - Focused on the Space Syntax Analysis of the Street Composition - (도시확장에 따른 진해의 교육시설배치특징에 관한 연구 -도로구조의 공간통사론적 해석을 중심으로-)

  • Yang, Seung-Jung;Lee, Hyun-Hee
    • Journal of the Korean Institute of Educational Facilities
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    • v.18 no.4
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    • pp.13-24
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    • 2011
  • The purpose of this research is to investigate the characteristics of layout of Jinhae's educational facilities from the perspective of space syntactic changes since the era of Japanese Imperialism. The observations that we made in this research are summarized as the following three points. First, most of the educational facilities are located near the integrated space. Axes of roads near educational facilities display similar spatial patterns as those of entire Jinhae. Second, the level of local integration has been rising near the site of elementary schools for the past decades, and the level of local integration near middle and high schools recently began to rise around the new town. Third, the level of integration is strongly related with the levels of local integration, and the locations of educational facilities are also related with the level of local integration. It implies that the locations of educational facilities are determined not by Jinhae's overall street composition but by nearby road composition.

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Influence of Combustor Pressure on Combustion Characteristics and Local Flame Reaction in the Partially Premixed Flames with $CH_4$, $C_2H_4$ and $C_3H_8$ (부분 예혼합 화염의 연소실 압력이 연료별(메탄, 에틸렌, 프로판) 연소특성과 국소 화염 반응에 미치는 영향)

  • Kim, Jong-Ryul;Son, Je-Ha;Noh, Young-Gu;Kim, Yun-Dong;Choi, Gyung-Min;Kim, Duck-Jool
    • Journal of the Korean Society of Combustion
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    • v.15 no.4
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    • pp.29-36
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    • 2010
  • An experimental study was conducted for three different fuels($CH_4$, $C_2H_4$ and $C_3H_8$) to investigate the combustion characteristics and the local reaction intensity with combustor pressure(-30kpa~30kpa). Regardless of fuel composition, EINOx decreased with reducing pressure decreased. Structure and combustion characteristics were also largely affected by the combustor pressure. In addition, reaction intensity in terms of the changing combustor pressure and equivalence ratio was investigated. Combustion reaction in higher than atmospheric pressure was very active than the lower combustor pressure. When the combustor pressure is lower than the atmospheric pressure, the overall reactivity is noticeably enhanced due to the elevated diffusion process of unburned mixture. It was found that the combustion characteristics of the methane and propane flames are considerably influenced by the pressure while those of ethylene flame are less sensitive to the combustor pressure.

A Study of Chinese Local Arbitration Committees Based on Arbitration Institution Evaluation Model (중재기관평가모형을 통한 중국 지방중재위원회의 특성연구)

  • Chung, Yong-Kyun;Lee, Seung-Suk
    • Journal of Arbitration Studies
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    • v.20 no.2
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    • pp.199-225
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    • 2010
  • This study investigates the characteristics of local arbitration committees in China based on arbitration institution evaluation model. Most of the literature on Chinese arbitration committees only focuses on CIETAC. However, the promulgation of 1994 Chinese arbitration act allows local arbitration committees to deal the arbitration cases related with foreign element. Before 1994, only CIETAC and CMAC handle the arbitration cases related with foreign element. For the evaluation of the local arbitration committees, this study establishes the arbitration institution evaluation model. This model has seven evaluation criteria: accessability, independence, neutrality, rapidity, economy, professionality, and extent of enforcement. Our findings are as follows. First, Chinese local arbitration committees have the strengths in the fields of accessability, economy and rapidity. However, they are deficient in the area of neutrality, professionality, and independence. Second, the spatial distribution of Chinese local arbitration committees is not equal in China. The number of local arbitration committees is big in the high growth region such as Shandong province. On the other hand, the number of local arbitration committees is small in the economically stagnant area. Third, the size and activity of local arbitration committees are various. Some of them are very active in dispute resolution through arbitration in China. For example, Beijing Arbitration Committee(BAC), Wuhan, Quangzou Arbitration Committee play the important role in dispute resolution through arbitration. However, the large part of local arbitration committees is financially weak and depend on the local government's financial support.

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