• Title/Summary/Keyword: Movable

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A Study on Design and Construction Methods of Movable Pavilions (이동식 정자의 설계 시공법 연구)

  • Lee, Jung-Han
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.37 no.4
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    • pp.51-59
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    • 2019
  • This study aims to examine the design and construction methods of movable Pavilions. Through the literature analysis, the setting up of the construction background, location and direction, size and composition, materials and construction methods were analyzed. The results are as follows; First, the movable pavilion is designed to enjoy a wide range of views. It was a creation that reflected the way in which the ideal life was pursued based on the experience of enjoying scenery rather than owning one's own house and running a pavilion. Second, the formation of movable pavilion was intended to enjoy the scenery by season without restrictions on time and place. It can also relieve the hassle of having to move tools to enjoy the wind every time. Third, the movable pavilion faces to a place with good scenery and determines its position and direction. Most of them were built on a small scale and divided the space for viewing the scenery, playing GO(Baduk), writing poems, and playing musical instruments. Also, wood was used mainly. To reduce the load, roofs and walls were constructed with light materials such as bamboo, straw, thick sheet of oil, and cotton cloth. The construction method was mainly used by the method of fastening for easy coupling and dismantling. When a building was constructed on the upper part of a ship or cart, the wooden structure of a regular pavilion was constructed. Fourth, when comparing the design and construction characteristics of ordinary pavilion and movable pavilion, the movable pavilion is easy to see for contrast purposes, so there is no limit to setting the location and direction. Instead, more stringent systems and techniques were called for, because as mobility forces should be considered, structurally measures to withstand loads, and they should satisfy their function and form as pavilion.

Determination of management water level for the storage and flood controls in the underflow type of multi-stage movable weir using artificial neural network (인공신경망을 이용한 다단 배치된 하단배출형 가동보의 저류 및 홍수 조절을 위한 관리수위 결정)

  • Lee, Ji Haeng;Han, Il Yeong;Choi, Heung Sik
    • Journal of Korea Water Resources Association
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    • v.50 no.2
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    • pp.111-119
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    • 2017
  • The underflow type movable weirs were arranged in a multi-stage way along a reach at the Chiseong River, where flooding has been observed frequently. With management water level of the movable weirs the control effects of storage and flood were suggested and the control effects were compared with those of existed weir system. The water level for the targeted storage and flood elevation was suggested by building the artificial neural network model. When the underflow type of movable weirs were arranged in a multi-stage way, the peak flood elevation decreased by 68.28% in the downstream compared with the existed weir system, and the total storage of the target section of multi-stage movable weirs increased by 216%. As a result of numerical simulation to build the artificial neural network model, 60%, 20%, and 20% among 216 data were used for the training, validation, and test, respectively. The training result of mean square error was $0.1681m^2$ and the high coefficients of determination were 0.9961, 0.9967, and 0.9943 in the training, validation, and test, respectively. As a result the water level management of each movable weir for the controls of flood elevation in the targeted downstream and targeted storage was suggested by using the artificial neural network.

A Study on Development of Movable Mariculture System by Use of Deep Sea Water (I) (해양심층수 이용형 이동식 해상양식시스템 개발 (I))

  • Kim, Hyeon-Ju;Jung, Dong-Ho;Choi, Hark-Sun
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2003.10a
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    • pp.329-332
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    • 2003
  • Aquaculture have been important role to supply food resources for mankind. However, competitive power of domestic mariculture industry was declined due to increase of labor and feed expenditures, and quantity import of low-priced livefishes from the developing underdeveloped nations in North and South East Asia. Mass production and quality enhancement can be pointed out to overcome such an industrial environment in this decade. To meet these requirement, movable mariculture base remodeling feasible vessel of chemical tanker or crude oil carrier has been proposed for more advanced mariculture management system by using deep seawater from about 200m which is sustainablely clean, nutrient-rich and cold seawater. Deep seawater can be applied for control of seawater temperature for mariculture base and cultivation phytoplankton and seaweed as feed. Besides mariculture, strategic marketing can be implemented by raw water and ice of deep seawater. Feasibility of applying deep seawater was considered after evaluating general movable mariculture base and management system.

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Design of Mobile Display Color Control Algorithm Using Red and Blue Color Emphasis with Skin Color Protection

  • Ha Joo-Young;Kim Joo-Hyun;Yang Hoon-Gee;Kang Bong-Soon
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.3C
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    • pp.264-270
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    • 2006
  • In this paper, we propose the modified display color control system using white point line, boundary lines and S-shaped curves to emphasize blue and red tone colors on CIE1931 diagram. The proposed system divides RGB gamut into movable area and non-movable area by using boundary lines. The colors in movable area are moved into right side or left side along quadratic curve to change the bluish (or reddish) color to more bluish (or more reddish), while those in non-movable area are excepted from color control to prevent skin color from changing. The loci of the quadratic curves are very similar to the arc of the white-point line which connects all points that represent the chromaticities of a black body radiator at different temperatures and is also called the black body locus. The RGB gamut extension by movement of chromaticity coordinate can improve color reproducibility. Therefore in the case of application to LCD, the display shows excellent performance because the LCD's color reproducibility is comparatively lower than that of other display systems. The proposed system is also experimentally demonstrated with Xilinx Virtex FPGA XCV2000E- 6BG560 and the TV set.

Preliminary Design of Movable Ramjet Intake (가변 초음속 흡입구 기본설계)

  • Lee, Kyung-Jae;Kang, Sang-Hun;Lee, Yang-Ji;Yang, Soo-Seok
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2008.05a
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    • pp.207-210
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    • 2008
  • In this study, one type of ramjet intake were designed for the flight condition of Mach number 4 and numerical analysis was performed. In order to widen the flight envelope range (Mach number $2{\sim}6$), movable intake concept was applied. The central body was designed so that the capture area ratio which is one of most important factors of ramjet intake design could be adjusted. And various types of cowl and movable insert part of shell were designed in order to control throat area which could increase total pressure recovery. The numerical results showed that the designed ramjet intake could be applied in various flights Mach number.

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Study on the Xylographica of Myopopyunhwakyung Printed by Movable Type in the Chosun Dynasty (조선조 활자본계의 묘법연화경 판본에 관한 연구)

  • 강순애
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.10 no.1
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    • pp.55-92
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    • 1999
  • This article investigate the xylographica of Myopopyunhwakyung printed by movable type in the Chosun Dynasty in three aspects. It analyze: i ) the spread to the East Asia of Myopopyunhwakyung and its distribution; ii ) the distribution of Myopopyunhwakyung printed by movable type in the Chosun Dynasty; iii) the bibliographical characteristic of each edition. There are many editions of Myopopyunhwakyung, it is important to divide its circle of editions and to suggest the value, Myopopyunhwakyung was printed and distributed by movable type of Chojukapinja and Eulhaeja style in the Sejong and Sejo reign. Its reprinted edition was distributed from the Sungjong reign to the Youngjo reign. the bibliographic characteristic of each edition of Myopopyunhwakyung is various and peculia in the temple calligraphic style, an illustration of Buddha preaching, and the list of participants and donors.

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The Flow Characteristic Variation by Installing a Movable Weir having Water Drainage Equipment on the Bottom (저층수 배출식 가동보 설치에 따른 흐름특성)

  • Choi, Gye-Woon;Byeon, Seong-Joon;Kim, Young-Kyu;Cho, Sang-Uk
    • Journal of the Korean Society of Hazard Mitigation
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    • v.8 no.3
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    • pp.117-122
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    • 2008
  • Generally, water is taken through channels and rivers, in which there are many weirs and structures, which cross rivers and temporally hold up water. But this way has its own shortcomings. It is main reason that the water flows through structures, and backwater come into being. So it causes many water quality problems and some flood side-effects and so on. In this study, among the various movable weirs, we installed bottom-discharged and air pressure movable weir in the experimental channel. And we analyzed flowing influence, which is followed by the angle variation of movable weir. We also make further study the flow characteristic variation followed by installing entrance at the bottom to discharge the bottom water. The analysis result was that installed weir angle was increased, and the discharge also gradually increased. The installed weir angle depended on the water quantity, which can be excluded in the bottom. In case of velocity, there was increased as maximum 21.9 times, according to there is entrance or not at the bottom. And in case of water level, it showed the water level of locally above the average decrease in the upper river of weir.

Analysis of submerged flow characteristics of the improved-pneumatic-movable weir through the laboratory experiments (개량형 공압식 가동보의 잠김흐름 특성 분석을 위한 실험연구)

  • Lee, Kyung Su;Jang, Chang-Lae;Lee, Namjoo
    • Journal of Korea Water Resources Association
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    • v.49 no.7
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    • pp.615-623
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    • 2016
  • This Study calculated the Submerged Flow Characteristics and Discharge coefficient by the rising angular change of the Improved-Pneumatic-Movable. According to the result, the smaller the ratio of weir height and weir length (L/W) or the weir standing angle, the bigger of the downstream head ($H_2$). The change of discharge reduction factor ($Q_s/Q_1$), by the hight from weir crest to downstream surface and the ratio form weir crest to upstream water height ($h_t/H$), was decreased when the $h_t/H$ closed to number 1. Although the weir water depth of the down-stream was shallower level than the up-stream, the velocity was faster then before. And the more the flow, the less the gab between the upper and lower reaches level. And when the same flow condition, the downstream head ($H_2$) was increased when the L/W was bigger. The Submerged Flow Discharge coefficient of Improved-Pneumatic-Movable weir was made by the upstream approach flow head and the upper lower stream flow condition, not by the physical data of Movable weir.