• Title/Summary/Keyword: Park Arrangement

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Comparison of Reciprocal and Concentric Winding Arrangement of HTS Transformer (고온초전도 변압기의 교호 배치 권선과 동심형 배치 권선의 비교)

  • Kim, Sung-Hoon;Kim, Woo-Seok;Lee, Sang-Jin;Park, Kyeong-Dal;Joo, Hyeong-Gil;Hong, Gye-Won;Han, Jin-Ho;Hahn, Song-yop;Park, Chan-Bae
    • Progress in Superconductivity
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    • v.5 no.1
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    • pp.61-64
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    • 2003
  • In HTS transformer with double pancake windings, the perpendicular component of leakage magnetic flux density ($B_{r}$ ) applied to HTS tapes of double pancake windings of HTS transformer acts as a cause to decrease the critical current in HTS tape. So, in this paper, HTS transformer with reciprocal arrangement winding is designed. And in order to investigate the$ B_{r}$ applied to HTS windings, the 2-D non-linear electromagnetic analysis of HTS transformer is performed by using the OPERA 2D. The maximum $B_{r}$ applied to winding of HTS transformer is 0.112 T and the characteristics of HTS transformer were also obtained. But in this type of winding arrangement, reciprocal arrangement, the generated ac-loss to the HTS windings is very high because of the applied $B_{r}$ to HTS windings. Therefore, in order to reduce the generated ac-loss to the HTS windings, the new design of HTS transformer with concentric winding arrangement is presented in this paper and the 2-D non-linear electromagnetic analysis and the ac-loss for HTS transformer with the concentric winding arrangement is also carried out.

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Arrangement Methods of Pattern and Weaving Types of Fabrics During 16~17th Century - Centering Flower Patterned Fabrics of Exhumed Clothing in Chosun Dynasty - (16~17세기 직물유형과 문양의 배치구도에 관한 연구 - 조선시대 출토복식에 나타난 화문직을 중심으로 -)

  • Park, Mun-Young;Kim, Ho-Jung;Park, Ok-Lyun
    • Fashion & Textile Research Journal
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    • v.8 no.4
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    • pp.400-406
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    • 2006
  • The purpose of this study is to investigate characteristics of arrangement methods and weaving types of fabrics during 16-17 century. Research was done through the references of exhumed clothing in Chosun Dynesty. Seeing the waving types of fabrics of flower patterned fabrics of total 108 items, satin damask(Dahn) was 71items, took the majority. And the next order was twill(Neung) and plain(Ju). It means Dahn was the most popular fabric among the upper classes. It was regarded as one of the noble textiles, because of its luxurious appearance and pleasant touch. Flower patterned plain fabric(Munju) was found only 9items, even though the plain fabric was the most common used type. Assumed for the reason, Chosun government had restrict to extravagance of the people. In terms of the arrangement of flower pattern, it can be classified into three methods. The most common arrangement method was Arabesque type, followed by open order shaped type and scattering shaped type. In the repetition of pattern, there were brick-shaped pattern and half drop pattern which were spread flower pattern all over the surface of fabric.

A Study on Arranging and Describing of Photograph Archives for Choi Min-Sik Collection (사진기록물의 정리 및 기술에 대한 연구 - 최민식 컬렉션을 중심으로 -)

  • Park, Chi-Heung;Heo, Hee-Jin;An, Na
    • Journal of Korean Society of Archives and Records Management
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    • v.8 no.1
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    • pp.257-274
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    • 2008
  • In this study, arrangement and description of documentary photographic records about photographer, Choi Min-Sik have been reviewed. Throughout the literature review, arrangement and description of photographic records are analyzed. The results show that the universal classification plan of administrative records is difficult to apply to photographic records. This study suggests the case of arrangement and description of photographic records a photographer produces continually.

Three Dimensional Electric Field Analysis Of Substation Using Nonuniform Optimal Charge Simulation (비균등 최적 전하배치를 이용한 전력소 3차원 전계해석)

  • Myung, Sung-Ho;Lee, Byeong-Yoon;Min, Suk-Won;Kim, Eung-Sik;Park, Jong-Keun
    • Proceedings of the KIEE Conference
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    • 1994.11a
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    • pp.290-292
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    • 1994
  • This paper presents a methodology for the electric field analysis of substation. For the electric field analysis of substation, the electrodes(substation busbars) must be represented by finite line with nonlinear charge density. In the case of dividing finite line into uniform segments, a large number of variables have to be used to obtain the accuracy within a desired tolerance. To deal with the problem, nonuniform charge arrangement modeling method is suggested. To reduce potential calculation errors, the linear charge density function is considered particularly for the segment charge model ling. If the charge arrangement is improper, the accuracy not improved regardless of increment in the number of segments. This paper proposes an optimal charge arrangement method through potential error analysis. And, the optimal charge arrangement function is formulated by a lot of simulation results.

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Strategies to Improve Parks' Accessibility in City - Focus on Gyeonggi-do Region - (도시공원의 접근성 향상 방안 연구 - 경기도 권역을 중심으로 -)

  • Sung Hyun-Chan;Shin Ji-Young
    • Journal of the Korean Institute of Landscape Architecture
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    • v.33 no.2 s.109
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    • pp.83-91
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    • 2005
  • The purpose of this study is to analyze the arrangement of parks, in whole city level by using park's effective distance and to find the accessibility obstacles in case of using parks, in boundary of each parks' effective distance, so that to show how to improve communities' usage of city parks. The 8 cities in Gyeonggi-do and analysed the effective distance of parks. To find the accessibility obstacles in the boundary of parks' effective distance, 1) we choose 18 sample parks and extract obstacles - wide road, rail road, river- in interior and verify it by field survey and asking the park user's residents directly. The main findings of this study can be summarized as follows: First, Ansan city and Goyang city are only satisfied with the minimal city parks size standard, so that the rest 6 cities are lack of quantities which residents can use. The result of analyzing effective distance in whole city level, parks are mainly designated in new-town, so that most cities which have old-towns have very poor park systems to use. Because Ansan city is new-planned city, it is very effective arrangement in park systems exceptionally. Second, $96.2\%$ of park users' are living in the area which was easy to gain access not intercepted by wide road, rail road or river. Third, therefore at the stage of planning park, effective distance and resident's accessibility as well as park's supply quantitatively are needed to be considered. In addition, selection of location and elevation of resident's safety and accessibility through making a plan must be reflected. In the low accessibility area, the program to improve park's accessibility and amenity - like making small park or pocket park, linking parks with resident-friendly road etc.- has to be investigated.

Study on Arrangement of Self-Resonant Coils in Wireless Power Transfer System Based on Magnetic Resonance (자기 공명 무선 전력 전송 시스템에서 공진 코일의 배열에 관한 연구)

  • Kim, Jin-Wook;Ji, Hyeon-Ho;Choi, Yeon-Gyu;Yun, Young-Hyun;Kim, Kwan-Ho;Park, Young-Jin
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.21 no.6
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    • pp.564-572
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    • 2010
  • In this paper, characteristics on arrangement of coils in the wireless power transfer system based on magnetic resonance is presented. A helical structure is used for a self-resonant coil. To design a proper self-resonant helical coil, its inductance and capacitance are obtained. Using the finite element method, the self-resonant coil designed is simulated and characteristics of wireless power transfer with various arrangement between Tx and Rx resonant coils is analyzed. For verification, a prototype of a wireless power transfer system based on magnetic resonance is fabricated and efficiency of different arrangement such as both vertical and parallel arrangements is measured. From the measurement, transmission efficiency of 50 % for parallel arrangement is obtained within twice the diameter of the coil while for the vertical arrangement it is measured within one and a half diameter of the coil. Maximum efficiency of 84.25 % is observed at the distance 40 cm from the resonant coil in the case of parallel arrangement.

Content Analysis of the Planning Characteristics of Apartment Houses in Daejeon City (대전지역 공동주택의 분양 팜플렛에 나타난 계획 특성)

  • Park, Jung-A;Kang, In-Ho;Choi, Byung-Sook;Jung, Mi-Hyeon;Jang, Hye-Sun
    • Journal of the Korean housing association
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    • v.19 no.3
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    • pp.11-20
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    • 2008
  • The purpose of this study was to find out tendencies in the planning characteristics focused on the community, single building, shared spaces and interior concept of apartment houses in Daejeon City, and to analyze these characteristics according to apartment unit floor plan based upon the arrangement of room, the type of main entrance, the type of LDK, anbang, kitchen, bathroom and the 3rd space. This study used the content analysis method and analysis was made on drawings and descriptions showing planning characteristics of apartment houses. Above all, 34 cases of apartment houses and 159 unit plans were analyzed. The results of this study were as follows: 1) The most important characteristics of the direction of housing development was the "well-being" concept including greenzone and natural environment. The most mentioned community spaces were children's playgrounds and parks. The emphasized interior concepts were noble, well-being and natural concepts. 2) The most prominent front arrangement type was the 3-bay unit plan, front space arrangement was focused on rooms and, livingroom. The most prominent front space arrangement types were R/L/R, R/L/R/R and there is a new tendency towards KD/L/R/R. 3) The most prominent LDK floor plans were of the LDK type. The type of "Anbang" arrangement consisted mainly of room-bathroom-dressing room. The type of public bathroom arrangement consisted mainly of bathtub-toilet-washbasin and the "Anbang" bathroom arrangement was shower-booth-toilet-washbasin.

Study on the Performance Improvement according to Arrangement Angle of Baffle and Location of Air Duct in the Cold Air Dryer (냉풍 건조 시스템의 배플 배열각도 및 공기공급관 위치 변화에 따른 성능 향상에 관한 연구)

  • Yun, Chung-Kug;Yu, Ki-Tae;Park, Chul;Song, Hee-Geun;Bae, Kang-Youl;Chung, Han-Shik;Jeong, Hyo-Min
    • Journal of Power System Engineering
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    • v.21 no.4
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    • pp.62-69
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    • 2017
  • Because the moist foods like anchovy were appeared lower quality by hot air that occurred the lipid oxidation, the drying system by using the cold air has been used widely. This study has been carried out on the performance improvement according to arrangement angle of baffle and location of air duct in the cold air dryer. The main parameters in this study are the arrangement angles which are without, $0^{\circ}$, $10^{\circ}$, $20^{\circ}$, $30^{\circ}$ and $40^{\circ}$, and the locations of air duct are without, front, center and back. For this study we have conducted the numerical analysis method using fluent in order to obtain the optimal condition of the drying performance. As the arrangement angle of baffle is increased, the relative humidity is proportionally decreased, the value at $40^{\circ}$ is 42.2% that indicate the reduction of about 4% than without it. After the air duct was installed, the decreased relative humidity is showed within 1%, therefore, the effect of air duct for improving the dry capacity is more large than the arrangement angle of baffle. Finally, we have obtained the optimal conditions that the arrangement angle is $40^{\circ}$ with the air duct for a cold air dryer.

A Study of the Role of Ondol in Park Gil-ryong's Housing Design - Focused on the housing plans from 1926 to 1941 - (박길룡의 주가(住家) 계획에서 온돌의 역할에 관한 연구 - 1926년부터 1941년까지의 계획안들을 중심으로 -)

  • Han, Janghee;Jung, Inha
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.36 no.1
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    • pp.69-80
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    • 2020
  • The purpose of this study was to analyze the arrangement of rooms in Park Gil-ryong's housing plans to understand the influence of ondol on his design. Architect Park published diverse housing plans in Korean newspapers and magazines. Out of them, this study attempts to select the urban housing for the middle class as an object of analysis, and clarify the mutual relationship between the ondol and their room arrangement. This study is significant because it gives a precious opportunity to understand Park's ideas on housing improvement in the 1930s, and how his ideas affected other architects.

Proper Arrangement of City Park though Analysis of Disposition Distance (유치거리 분석을 통한 도시공원의 적정배치에 관한 연구)

  • Ryu, Yeun-Soo;Ra, Jung-Hwa;Do, Hu-Jo
    • Current Research on Agriculture and Life Sciences
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    • v.20
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    • pp.33-38
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    • 2002
  • The purpose of this study is to analysis of disposition distance of city park for the plan of suitable arrangement of city park based on the date examining Daegu Metropolitan City. The results of this study are as follows. 1) The result of analysis of population density as the case of districts, it appeared highly in city center area which Seo-Gu district and Nam-Gu district besides Jung-Gu district. However, it apperared in a low Buk-Gu district, Dong-Gu district and Salseong-Gun. 2) The result of analysis of population density as the case of regions, it appeared very highly Joukjun-Dong of Dalseo-Gu district($31,554per/km^2$), Naedang-Dong of Seo-Gu district($29,922per/km^2$). However it appeared in a low Yeuga-Maen($85per/km^2$) and Gachang-Maen($94per/km^2$) of Dalseong-Gun. The regions where the population density is high have very low green space and live a lot of low income layer. 3) The result of analysis of disposition distance, in the case of children park, it appeared an intensive distribution in Dongcheon-Dong and Guam-Dong of Buk-Gu district, Whanggm-Dong and Dusan-Dong of Suseong-Gu district, Sangin-Dong and Yeongsan-Dong and Walsung-Dong of Dalseo-Gu district. however, it appeared in a low in Jung-Gu district. The case of urban park of the neighboring area, it appeared the most in Dalseo-Gu district except 2 parks in Jung-Gu district, the case of urban park of the walking area, it appeared in equality in city. 4) In conclusion, the area have high population density and lots of low income layer, is in out of disposition distance should be considered in first for city park plan.

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