• Proceedings of the KSR Conference
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• 2008.06a
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• pp.2120-2124
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• 2008

In order to rise up the accuracy of evaluation of egress safety for train car and facilities, analysis of egress route, scenario and the prediction by variation of flow rate were conducted. According to analysis of egress scenario for train, the extra time should be added to the time from train to safety area when the distance between the train car floor level and the track level exists. In the result of hand calculation, the egress time was 123.1 s at flow rate 0.5, was 61.5 s at flow rate 1.0, and was 41 s at flow rate 0.5.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.163-169
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• 2008

The application of robot technology on construction sites is recognized an effective solution to the problems caused by labor shortage on the construction industry, and relevant studies are being carried out increasingly. Automatic construction system for frames of high-rise building was developed in Japan in 1990's. Practical use o F the system, however, was failed due to inefficiency Now, we are developing economic and practical automatic construction system that is lighter and suitable for building construction In Korea. This study has discussed developing the system of construction factory and climbing control system, which is the core technology of the automatic construction system in Korea.

• KIEAE Journal
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• v.10 no.5
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• pp.23-30
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• 2010

The residence means a given place. It is repeated that process of overcome, protection, assimilation and adaptation has applied to environmental condition. Architecture is part of environment and various. Thus there are lots of types. We need the place with uniqueness, and it is suitable for biological and humanistic environment. The living space turned to be meaningful place with design, and people start to live with nature together. Therefore design restructures whole environment and makes people to be closed with nature. We have to understand nature of environment to connect one place with the other place, and people start to put down roots certain place. Coping with social needs, we have to develop the architectural alternative which can be applied to natural condition. This study suggest sound high-density urban residential model as it function social mix.

• Economic and Environmental Geology
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• v.29 no.6
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• pp.745-752
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• 1996

A ground penetrating radar survey with a 500 MHz radar antenna was applied to make archaeological investigation in Nakajima of Ishikawa Prefecture, Japan. The ability of the radar system to aid in the archaeological preservation of burial ground was the primary concern of the experiments. The average variance of the radar wave returned from progressively deeper reflectors in a tomb were contoured at 2.4 nanoseconds intervals. The results of analysis indicates the location of trenches and the coffin area at the tomb site. The orientation of the coffin is dearly defined on contour maps made below 9.6 nanoseconds horizon. The general features detected by the GPR were also reconfirmed by electric resistivity survey made at the site. The radar was accurate in ascertaining the location, orientation, and the general construction style of the coffin.

• Resources Recycling
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• v.16 no.4
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• pp.61-67
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• 2007

In viewpoints of environmental and resource conservation, it is desirable to utilize fly ash generated from domestic coal power stations as light constructive material. Furthermore, the demand of light constructive materials has been increased as many building tend to become highly multistory buildings. In demonstration of converting fly ash to light constructive materials, the Dwight-Lloyd kiln of which the operation is relatively easy and the reliability very high has been informed to be only commercialized plant over the world. In this review, Dwight-Lloyd kiln plant operated at Oomura coal power station in Japan is explained. Circular grate kiln, Shaft kiln, Rotary kiln plants that are under developed is also introduced.

• Journal of Korean Society of Rural Planning
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• v.28 no.3
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• pp.35-47
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• 2022

The study is to analyze the role of highschool youth group in a rural regeneration project. The process of youth group becoming subjective in resident participation plan was classified into isolation reduction, self-awareness, perspective-taking, subjectivity practice, and opinion expression. Isolation reduction is a stage in which youth group is gradually drawn into the community from a limited society of home and school, self-awareness is a stage in which they discover their thoughts, and view perspective-taking is a stage in which they objectify themselves and surroundings through communication with other members of the region, social experiment was analyzed as a practice of subjectivity that experiences leadership guiding the local community independently, and expressing opinions is a stage of representing the region and giving responsibility for the specific issue of the implementation plan. The study is also an analysis of how residents committee, local governments, and local research institutes perform both regeneration and community revitalization in rural areas. Therefore, the analysis of the cooperative organization of these institutions was conducted simultaneously. The leadership program was effectively linked to the project of rural regeneration. Since high school students themselves are family members of the local people, the process of accepting the project is unaffected, and the feasibility of the project is also increased, such as forming a positive atmosphere for the project and easing resistance to minority opinions.

• Korean Journal of Heritage: History & Science
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• v.42 no.2
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• pp.62-85
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• 2009

The Nam-Hae Sin-sa, the South Sea shrine in Yeong-Am, Korea was a national institution for public peace and bliss, was excavated in 2000, and the shrine and the 3-way-gate were reconstructed in 2001. Hae Sin-sa, the Sea shrine is a place for religious service separated into the Nam-Hae Sin-sa, the Dong-Hae Myo, and the Seo-Hae Dan. The Dong-Hae Myo was reconstructed, but restored shrine and 3-way-gate of the Nam-Hae Sin-sa is not perfect in comparison with excavation plan in 2000, therefore new reconstruction was researched through the related literature, the analysis of historical maps and excavation results, the interview with the concerned people and the case study. This research defines the analysis of the Plan of the Nam-Hae Sin-sa Reconstruction as follows. 1. The Nam-Hae Sin-sa was the institution for religious service operated by national direct management, represents the shrine for public peace and bliss on the Mountain, the Sea, and the River. Especially the Nam-Hae Sin-sa had an important position on the pivot of international trade with China and Japan, and had a role of main shrine with another one in the Mt. Ji-ri San. 2. The name of the Sea shrine was called as Nam-Hae Sin-sa(the South Sea shrine), Dong-Hae Myo(the East Sea shrine), Seo-Hae Dan(the West Sea shrine). But the name of the South Sea shrine had changed in the early period of Chosun as Nam-Hae Sin-sa to the later Chosun as Nam-Hae Dang through the research of related literature and historical map. Such as the Seo-Hae Dan, it was constructed for the Dan, the flat raised-floor without buildings, and changed to the type of Sa-Dang with addition of buildings. 3. The historical map of Hae Sin-sa informs the types of the roof, the Mat-bae roof was used in the Dong-Hae Myo, but the Pal-jak roof was showed in the Seo-Hae Dan and the Nam-Hae Sin-sa. 4. According to the analysis of Yong-Ch'uck the unit length, Nam-Hae Sin-sa was reconstructed in the period of Koryo on large scale, but it was restored in the Chosun on middle scale. And the Unit of Yong Ch'uck was changed into Yeong-jo Ch'uck in the period of Chosun. 5. As the results, The Plan of the Nam-Hae Sin-sa Reconstruction designed the new shrine into the 3 Kan front and the 2 Kan side with 3:2 scale. An-ch'o-gong with Yong-du and Yong Mi the ornaments represents head and tail of dragon, the Un-gong and the ornament of Pa-ryun-dae-gong in the building, and the Ch'ung-ryang of the Yong-du show the image of the institution for religious service for the god of the sea who look like dragon. The inner gate building and the main entrance were designed as same plan and scale as Hyang-gyo, the Korean Traditional School and Shrine of Confucianism, on the basis of results of excavation. Raise the 3-tall gate of the main entrance with harmony of the scale and the shape, because the side of gate building has the Mat-bae roof. 6. This research shows that Plan of the Nam-Hae Sin-sa Reconstruction is composed into shrine space and reservation space from the main entrance to inner gate and shrine like Jung-ak Dan in the Mt. Gye-ryong San, and it also informs the well in the west side of Sin-sa is an important factor of the plan of shrine architecture.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.5
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• pp.656-663
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• 2020

The study analyzed how F. L. Wright's architectural design concept changed based on Taliesin West (1940). According to the analysis, F. L. Wright was also influenced by the ancient Mayan civilization in addition to the Froebel block and Japanese culture. Wright realized the design style of Mayan civilization directly at the Biltmore Hotel, which is located near Taliesin West. Later, Wright's architectural design elements changed considerably. In particular, the local characteristics of Arizona, where Taliesin West is located, desert climate, and Cherokee Red, the color of ocatilla cactus growing in the desert, have been applied in his symbolic colors of his architecture. The following is a summary of the changed design concepts compared to before 1940: 1) A square module was used for floor plans before 1940 that later changed to a design concept called a circle and spiral. 2) The form of a column that simply emphasized its verticality changed to various shapes. 3) The gable roofs used in the early days of Wright's architecture changed to various forms that rose into the sky after 1940. This change was seen as the culmination of potential experiences that had not been realized before 1940.

• Korean Journal of Construction Engineering and Management
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• v.19 no.6
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• pp.124-134
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• 2018

Despite the many advantages of modular housing, low preference for modular housing for consumers who are familiar with RC structure leads to high construction cost of modular housing. The cost of modular buildings is about 130% of that of RC structures, so it is urgent to secure economical efficiency of modular buildings. Therefore, in this study, after calculating the savings amount of modular housing by type of construction work, economic analysis was conducted from a long - term perspective. In order to carry out the research, the authors compiled and analyzed the material cost, labor cost, and expenses incurred by each type of work by reclassifying the statement of the modular housing into the factory production and the site installation. After that, Pareto diagrams were created to find a core work that is included in the cost ratio of about 80%, and selected it as a cost reduction subject. Based on the assumption that the market size of domestic modular housing is similar to the level of modular advanced countries such as Japan and European countries, six cost reduction methods were set up that reflects the characteristics of the modular construction method and used for the expert interviews. Cost saving potentials in percentage from the interview were converted to the amount of savings that can be achieved by each type of method when applying the method. Finally, the findings of the study are expected to suggest long-term directions for technical development for modular construction and cost savings.

• Fire Science and Engineering
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• v.30 no.3
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• pp.73-78
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• 2016

The Installation, Maintence, and Safety Control of Fire-fighting Systems Act of South Korea regulates that over 30-storey high-rise buildings including underground spaces should vitally perform the Performance-based Design to minimize property damage and personal injury as a fire risk assessment in advance. Therefore a PBD designer such as a fire safety professional engineer evaluate occupant's life safety by a scientific methodology. In order to evaluate the life safety, fire safety designers calculate the Required Safety Egress Time (RSET) which does not have the legal criteria regarding the standard method of calculation yet. So this way has been showing different results depending upon the designer's choice, knowledges and experiences. In this study, RSET calculation methods by six designers respectively were analysed from the thirteen reports of real performance based design projects conducted in Busan for a last five years. In particular, the Response Time calculation methods which have the most powerful effect for figuring the RSET are compared with the other designer's to deduce an error value.