• Title/Summary/Keyword: Center of Area

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The Stability of Turbulent Interacting Flames (다수 난류 비예혼합 화염의 상호작용에 관한 연구)

  • Kim, Jin-Sun;Lee, Byeong-Jun
    • Proceedings of the KSME Conference
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    • 2001.11a
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    • pp.453-458
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    • 2001
  • The stability of turbulent nonpremixed interacting flames is investigated in terms of nozzle configuration shapes which depend on the existence of the center nozzles. Six nozzle arrangements which are cross 4, 5, 8, 9, square 8 and circular 8 nozzles are used for the experiment. Those are arranged to see the effect of the center nozzle out of multi-nozzle. There are many parameters that affect flame stability in multi-nozzle flame such as nozzle separation distance, fuel flowrates and nozzle configuration, but the most important factor is the existence of nozzles in the center area from the nozzle arrangement. As the number of nozzle in the area is reduced, more air can be entrained into the center of flame base and then tag flame is formed. In the case of circular 8 nozzles, blowout flowrates are above 5.4 times compared with that of single equivalent area nozzle.

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A Study on the area and space program for the Multipurpose Senior Center in Daejeon (대전시 노인종합복지관의 부문 및 면적에 관한 연구)

  • Jeon, Young-Hoon;Chai, Choul-Gyun
    • Korean Institute of Interior Design Journal
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    • v.18 no.4
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    • pp.116-123
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    • 2009
  • This research aims at the provision for all of the basic data upon the arrangement of organization and allocation which include the details of required spaces and adequate area in the design of Multipurpose Senior Centers. This analyzed research is to be proposed for Multipurpose Senior Center in various local areas in the city, it aims to clarify the existing condition in the operation of each organizational required space. Further more this research examines their relationship between the facilities available and the population use of the local elderly age. Consequently, the Daejeon Multipurpose Senior Center, including participation in the program and the very high frequency of use of the room entails a smooth progress of the program, improves the quality of space and based on the initial design is fully reflected in the step.

Effect of Structural Geometry of Jointed Concrete Pavement on Backcalculation using AREA Method (줄눈콘크리트 포장의 구조적 형상이 AREA법을 이용한 역해석에 미치는 영향)

  • Yoo, Tae-Seok;Sim, Jong-Sung
    • International Journal of Highway Engineering
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    • v.9 no.1 s.31
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    • pp.39-46
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    • 2007
  • Different backcalculation results for the same material properties are caused by different structural geometry. In this paper, based on real simulation results for typical pavement systems using 3-dimensional FE models, modified AREA graphs are proposed to graphically backcalculate modulus of elasticity of slab and subgrade based on center deflection and AREA. In modified graph for single infinity slab models, deflection and AREA are increased in deeper depth to bedrock. But, effects of depth to bedrock more than 4.0 meters on backcalculation results are negligible. And, center deflection and AREA generated from multifinite slab models are larger than those of single infinity slab models with same depth to bedrock.

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The Association between Cross-section of Lumbar Regional Muscle analyzed by MRI and Stability, Center of Pressure assessed by Tetrax (요통 환자의 요추 주변 근육 단면적과 신체안정성(Stability), 체중심(Center of Pressure)과의 관련성 : 동적평형검사(Tetrax)를 중심으로)

  • Seong, Ik-Hyun;Lee, Kap-Soo;Jung, Jae Hoon;Kim, Won-Woo;Cho, Chang-Young;Choi, Chul-Woo;Ha, In-Hyuk
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.8 no.2
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    • pp.39-46
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    • 2013
  • Objectives : To identify the association between cross-sectional area of lumbar regional muscle and stability(ST), center of pressure(COP) assessed by tetrax. Methods : Patients(n=55) who had taken L-SPINE MRI and Tetrax(Sunlight, Israel) were analyzed retrospectively. To evaluate the cross-sectional area of lumbar regional muscle, L-SPINE MRI was used. Data of ST, COP were accumulated by using dynamic equilibrium analysis by Tetrax. Of the lumbar regional muscles, the Psoas muscles and the Paraspinalis muscles were examined. Using Pearson correlation, we analyzed COP, ST and the difference between the cross-sectional area of lumbar regional muscles. Results : The variance of cross-sectional area of both sides of Psoas muscle and COP had moderate positive correlation(r=0.621). Between variance of cross-sectional area of both sides of Paraspinalis and lumbar regional muscle and COP there was low positive correlation(r=0.287, r=0.329) ST also had low correlation with variance of cross-sectional area of both sides of Psoas muscle. Conclusion : The variance of cross-sectional area between both sides of Psoas muscle had moderate correlation with COP.

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Area-Focused Luminance Control Backlight for LCD TV applications

  • Hong, Hee-Jung;Kwon, Kyung-Joon;Choi, Jong-Hyun;Lee, Si-Hoon;Hwang, Hak-Mo;Lim, Moo-Jong;Oh, Eui-Yeol;Chung, In-Jae
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1157-1160
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    • 2005
  • In order to improve the image quality of a large size LCD-TV, the Area-Focused Luminance Control (AFLC) technology with data processing algorithm has been developed. The AFLC backlight consists of 16 U-shaped lamps, and controllable areas are divided into 8 blocks. Based on the AFLC technology, the backlight luminance of each block is automatically and separately controllable. Consequently, the contrast ratio is greatly enhanced whereas the corresponding power consumption is decreased as compared with those of conventional backlights.

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Cross-Sectional Study on Iron Status of Asan Residents and Regional Comparison

  • Kim, Ji-Sun;Lee, Byung-Kook;Jung, Gap-Hee;Jang, Dong-Min;Park, Tae-Soon;Song, Young-Ju;Kim, Hee-Seon
    • Journal of Community Nutrition
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    • v.5 no.1
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    • pp.37-43
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    • 2003
  • Iron deficiency and anemia are severe nutrition problems in most of Korea. Iron intake, especially iron with better bioavailability is insufficient over a total age group. Recent changes in diet and life style of Koreans have been repeatedly suggested problems caused by excess nutrient intake rather than under intake. Despite the changes in diet patterns, iron deficient anemia is still prevalent in many parts of Korea. Eight hundred and fifty subjects (323 male and 527 female subjects) in Asan were recruited from farming, factory and urban area. Each subject was interviewed to assess nutrients intakes according to a 24hr-recall method. Twelve hour fasting blood samples were collected to vacutainer with EDTA for hemoglobin (Hb) and separate the tubes for serum iron (SI) and total iron binding capacity (TIBC). The mean serum iron value of female subjects in the factory area was significantly higher (p < 0.05) than that of the female subjects in the urban area although subjects in urban area showed significantly higher the dietary iron intake for both the men and woman (p < 0.05). Dietary iron intake for the younger women was lowest in the farming area and those in the urban area showed the highest dietary iron intake (p < 0.05). When the dietary iron intake was compared by different the age groups, dietary iron intake of the older women from animal sources was less than that of younger women in the urban area (p < 0.05). Dietary iron intake of Asan residents was not sufficient regardless of age, sex and regions and intake of heme iron was especially lower than nonheme iron. (J Community Nutrition 5(1) : 37∼43, 2003)

Establishment Strategies and Location Analysis of Convention Center for Regional Development of The Yosu Peninsular Area (여수반도권 지역발전을 위한 컨벤션센터의 입지분석 및 건립전략)

  • Lee, Jeong-Rock
    • Journal of the Korean association of regional geographers
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    • v.2 no.2
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    • pp.133-157
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    • 1996
  • Recently, international convention competition has greatly expanded with the globalization and expand of world economy. As the conventions market has grown, so have the number of places and facilities of convention competing for business, and numerous trade show and the related meetings held the several cities toward world city such as the United States, Europeans Countries, Japan, and Singapore. Convention, in general, are defined as an assembly, often periodical, of members or delegates, as a political, social, professional or religious group. Convention center means the place that hold several social, political, economic conferences and meetings, trade show, exhibitions, and events. Convention center are consisted the several facilities such as meeting room, exhibition hall, event hall. Historically, meetings, conventions, and trade show have been serviced primarily by hotel and convention centers. With the expand of world trade and flow in recent, the conventions, expositions, and meetings industry (CEMI), however, is one of the most rapidly growing industries in hospitality and tourism, and CEMI provides import effect on regional economy and regional development including regional tourism industry. This study focuses on the establishment strategies and location analysis of convention center as a agent for regional development in a case of Yosu Peninsular Area (YPA). YPA is one of the major industrial area of our country, and displays the rapid regional urbanization and social change with the construction such as Kwangyang container port facilities, Yulchon industrial complex, and the extension planning of industrial estate related to Kwangyang Iron and Steel Company, and population size of this area will be reached about two million peoples in 2011. This area, particularly, will be functioned as a major container & export port of our country after the completion of Kwangyang container port facilities in 1988. If the planned industrial estate is constructed, the convention center for conference exhibition, information exchange, and resort facilities for exhibition, international communication will be needed. In addition, resort and leisure facilities for conventions' participants need. This area, therefore, has to make the establishment of convention center for regional development in future. Thus, the major strategies and idea for establishment of convention center as follows: first, this area has requirements for resort convention center, because this area will be functioned as a major export port and industrial district in 21 century; second, in the location analysis of convention center site, Sinwol & Woongchon district, Soho district, and Yongju & Hodu district are selected as developing possible sites; third, the convention center of this area has to consist of two functions such as convention facilities and marine resort facilities; fourth, in order to establish convention center, the selection of main group, financial raising strategies, and the organization of propulsion committee for establishment of convention center are required.

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A Study on the Architectural Planning of Urban-Rural Exchange Center for the Activation of Rural Village (농촌마을 활성화를 위한 도농교류센터 건축계획에 관한 연구)

  • Cho, Won-Seok;Kim, Heung-Gee
    • Journal of the Korean Institute of Rural Architecture
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    • v.13 no.2
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    • pp.31-38
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    • 2011
  • The domestic rural villages have faced on the many problems in future society. The major purposes of this paper are to clarify in space program for the Rural Activating through the Urban-Rural Exchange. Firstly, it has examined the rural amenities of rural resources, such as natural surroundings, culture, history, landscape, economy, community power etc. Secondary, it was checked about analysis of operation programs corresponding to the rural resources. Thirdly, These space program of Urban-Rural Exchange, which has been archived process of spacial planning, was investigated the spacial conditions corresponding to the operation programs. To make Urban-Rural Exchange Center, it was necessary to analyze physical spacial size of building gross area, by data of cross checking with the area per capita and area per household in the rural village. According to the research, Urban-Rural Exchange Center was to be included visiting center, multipurpose room and dining room, exhibiting space, conference room, experience room, welfare space and specialized room with activation of rural village. However additional conditions are required that it is based on the sustainable development, environmentally friendly architecture both operation program and space program for the value of common society, citizen and villagers.

Automatic Interior Orientation of Aerial Photographs with Model-free Condition

  • Cho, Seong-Ik;Kim, Kyoung-Ok
    • Proceedings of the KSRS Conference
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    • 2002.10a
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    • pp.536-541
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    • 2002
  • This paper proposes an approach of automatically calculating the center location of fiducial marks up to sub-pixel accuracy with model-free condition. The conceptual model, composed of two assumptions, about general geometric property of fiducial area and fiducial mark is established. The proposed approach is primarily based on the strategy of calculating the center of symmetry and is composed of three steps of processing: (a) determining horizontal center of fiducial area, (b) locating center of a fiducial mark, and, (c) finally calculating the exact center up to sub-pixel accuracy. Evaluation with respect to RMK style marks and RC style ones shows that the proposed approach can be evaluated as robust one. However there are several images which can't be analyzed by the proposed approach.

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