• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.1037-1040
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• 2006

This paper presents an efficient overlay multicast routing protocol (ROMP) and its architecture. ROMP using GPS and region map stands on the basis of scalable 2-tiered multicast architecture and maintains a global overlay multicast tree through reactive fashion. With this approach, the coarse-grain location-awareness for an efficient overlay multicasting and the determination of hot-spot area for efficient data delivery are feasible. The simulation results show that the localized control packets of ROMP prevent the overlay control packets from squandering the physical network resources.

• Journal of the Korean Institute of Rural Architecture
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• v.12 no.2
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• pp.125-133
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• 2010

The advanced rural village development project started in 2005, and this project of purpose is improvement of housing environment and promotion of region activation. Researcher investigated about the advanced rural village development project of nine complex through field survey. The aim of this study is to be offered data of idyllic housing policy by examination actual conditions of study subject. Based on this study, mainly three results can be drawn as follows ; first, this project makes a great contributed to flow in population from urban to activate rural areas. Second, the project success depends on improvement an institution and planed, timely approach. Third, central government must plan network system with rural development project in political, and must support local government into political frame. The local government must consider a regional housing plan overall and must make an effort itself for the project success.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.35 no.3
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• pp.1-12
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• 2017

The purpose of this study is to interpret the landscape of Soyojeong, Taegeojeong, Chungeuijeong and Chwihanjeong in the Ongnyucheon region of the Changdeokgung Palace by analyzing the landscape elements using the pavilion's hanging couplets. Next, the landscape elements would be classified and interpreted by the Tang dynasty poet named Wang Changnyeong(王昌齡, 698-757) who put forward the range of aesthetics. According to the three kinds of classified boundaries, the results were as follows. First, the characteristics of the 'Wujing(物境)' described at spring dawn or in the moonlit night when the rain stopped, dew condensed, blooming flowers were in the quiet garden, fishes were drawn from the pond, and golden ogres sung in a dense pine forest. Second, the characteristics of 'Qingjing(情境)' described the emperor who held a grand ceremony: he sat in the jade throne, red curtains and gorgeous fans are propped up etc. All of these were used to praise the reign of a stable and peaceful nation. Third, the characteristics of 'Yijing(意境)' mainly described the Ongnyucheon region's scenery as an immortal world where people can experience and reach a high spiritual realm such as the 'integrated as one(物我一體)'.

• Journal of the Korea Concrete Institute
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• v.28 no.4
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• pp.455-462
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• 2016

This experimental study aims to evaluate the impact performance of UHPC exterior panels through high velocity impact tests. The impact performance of UHPC was compared with that of granite in terms of panel thickness, and strain histories were recoded on the rear face of panel specimens. The UHPC turned out to be a good exterior facade material, because the appearance of UHPC is natural enough and impact performance was superior to granite. After colliding, compression pulse reached to the rear face but that pulse was reflected in tension pulse with respect to the free point outside the rear face of the panel. This tension pulse caused the scabbing from the rear side, as the strain histories on the rear face showed three different regions as compression region, steady region and tension region. The shear plug deformation by shear force also was one of the primary reasons for the scabbing based on the observation. Therefore, the scabbing seemed to be affected by both tension and shear forces.

• Journal of the Korean Institute of Rural Architecture
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• v.13 no.1
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• pp.55-62
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• 2011

The purpose of this study is to clarify the actual condition of real certification schools of environment-friendly architecture per ecological environment elements through extracting ecological environment elements which is possible to analyze in quantity certification standards of environment friendly architecture. As the method of this study, firstly, certification as an examination on certification system of environment-friendly architecture, summary of certification system of environment-friendly architecture and eco-school pilot model project, ecological environment elements which is possible for quantitative analysis of ecological environment certification standards were extracted. Secondly, actual condition of ecological environment elements per school grade by collecting actual data of certification schools environment-friendly architecture were analyzed. The average of ecological area ratio was 24.5 percent in case of this certification regardless of school grade and region and it was analyzed that the natural based green area ratio was 22.9 percent, bio-tope area ratio was 0.60 percent and ecological learning places area ratio was 0.39 percent.

• Journal of the Korean Institute of Rural Architecture
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• v.11 no.4
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• pp.9-16
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• 2009

The purpose of this study is to clarify the actual condition of certification schools of environment-friendly architecture and general school per ecological environment elements through extracting ecological environment elements which is possible to analyze in quantity certification standards of environment-friendly architecture. As the method of the study, first, certification as an examination on certification system of environment-friendly architecture, summary of certification system of environment-friendly architecture and eco-school pilot model project in japan, ecological environment elements which is possible for quantitative analysis of ecological environment certification standards were extracted. Second, actual condition of ecological environment elements per school grade(middle school of environment-friendly architecture and general middle school) by collecting actual data of certification schools environment friendly architecture were analyzed and the results are as the follows. The average of ecological area ratio was 28.3 percent in case of this certification regardless of school grade and region and it was analyzed that the natural based green area ratio was 26.5 percent, bio-tope area ratio was 0.4 percent and ecological learning places area ratio was 0.45 percent.

• Journal of the Korean Institute of Rural Architecture
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• v.12 no.4
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• pp.69-76
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• 2010

The purpose of this study is to clarify the actual condition of real certification schools of environment-friendly architecture per ecological environment elements through extracting ecological environment elements which is possible to analyze in quantity certification standards of environment friendly architecture. As the method of this study, firstly, certification as an examination on certification system of environment-friendly architecture, summary of certification system of environment-friendly architecture and eco-school pilot model project, ecological environment elements which is possible for quantitative analysis of ecological environment certification standards were extracted. Secondly, actual condition of ecological environment elements per school grade by collecting actual data of certification schools environment-friendly architecture were analyzed. The average of ecological area ratio was 23.3 percent in case of this certification regardless of school grade and region and it was analyzed that the natural based green area ratio was 20.6 percent, bio-tope area ratio was 0.73 percent and ecological learning places area ratio was 0.43 percent.

• Journal of Environmental Science International
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• v.26 no.10
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• pp.1155-1166
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• 2017

This study selected commonly known species of fruit trees, and re-selected the species that endure the stress of extreme cold weather and physiologically restore themselves to the previous state until the following year. Then we could go ahead to propose the species that were appropriate as urban greening plants in weather condition of any part of the country. To do this, we conducted an experiments for six species of fruit trees based on the preference of the general public and recommendation of the experts; Morus alba (English name: mulberries), Diospyros kaki (English name: Persimmon), Prunus persia (English name: Peach), Elaeagnus umbellata var. coreana (English name: Korean Autumn Olive), Malus domestica 'Alps Otome' (English name: Alps Otome), and Prunus mume (English name: Blue Plum). The experiment verifies whether the trees survive without any stress from the cold weather under the national climate conditions (one in the suburbs of Seoul: Yongin city, one in the central Chungcheong region: Daejeon city, and in the southern Gyeongsang region: Jinju city in Korea). The experiment lasted for a year from August 2016 to August 2017. The levels of electrolytic efflux, chlorophyll content, plant height, fresh weight, and dry weight were measured four times (on August of 2016, January, February, and August of 2017) for each tree planted bare ground outdoors. Results showed that Diospyros kaki, Prunus persia, and Malus domestica 'Alps Otome' were proven durable and resistant to winters of all three areas (one in the suburbs of Seoul: Yongin city, one in the central Chungcheong region: Daejeon city, and in the southern Gyeongsang region: Jinju city in Korea). Especially, the increase of chlorophyll content and the reduction of electrolytic efflux were noticeable in Prunus persia than in the other two species, proving itself as the most cold-tolerant among the six species used in the experiment. In addition, interpreting from the physiological restoration data of one-year span before and after getting through winterer, Prunus persia was proven to be the most cold-tolerant species.

• JSTS:Journal of Semiconductor Technology and Science
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• v.12 no.2
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• pp.150-161
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• 2012

Eye detection is widely used in applications, such as face recognition, driver behavior analysis, and human-computer interaction. However, it is difficult to achieve real-time performance with software-based eye detection in an embedded environment. In this paper, we propose a parallel hardware architecture for real-time eye detection. We use the AdaBoost algorithm with modified census transform(MCT) to detect eyes on a face image. We parallelize part of the algorithm to speed up processing. Several downscaled pyramid images of the eye candidate region are generated in parallel using the input face image. We can detect the left and the right eye simultaneously using these downscaled images. The sequential data processing bottleneck caused by repetitive operation is removed by employing a pipelined parallel architecture. The proposed architecture is designed using Verilog HDL and implemented on a Virtex-5 FPGA for prototyping and evaluation. The proposed system can detect eyes within 0.15 ms in a VGA image.

• Korean Institute of Interior Design Journal
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• v.23 no.4
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• pp.72-82
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• 2014

The Contemporary paradigm to understand the complexity and diversity is moving to 'Becoming' that taken place in reviewing at the relation of various concepts. In Japan, After the collapse of modern architecture has been declared 'Metabolism' was appeared. They tried to apply organism's metabolic system to buildings based on ecological thoughts. But Metaboilsm's projects had revealed limitations of representation that the city on the mechanical system became a huge scale. As a result, It caused a break the cultural context of the region in Japan. After then, Japanese Architects expressed a pluralistic aspects of modern society for the restoration of disconnected cultural context. From this perspective, The thought of 'becoming' is a new role for Contemporary Japanese Architect. This research is focused of projects of SANAA, Ito Toyo, Sou Fujimoto, because they have spatial thought about realizing the space through the ways organizing the various potential possibilities in the simple external form not stimulated. They are realize the 'becoming-space' within the architecture. This 'becoming-space' gives people in building the new characteristics and experience that potential interactions among user, architecture and nature. It is non-representational space not fixed, but changing organically and variably.