• Proceedings of the Korea Concrete Institute Conference
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• 2008.04a
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• pp.37-40
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• 2008

Many engineers find the way of improving the old building's structural behavior in the remodeling project which is performed using artificial openings for merging two houses. This test was performed to verify the characteristics of coupling beams according to the shape of the openings. One of test specimen has rectangle shape and the other was made by the circle shaped opening and one has coupling member only as slabs. Additionally, three specimens which have openings have 23% ratio in opening area to total wall area. Consequently, solid type which have no opening area shows shear failure. In the case of CW-RBS which have rectangular shaped opening, cracks are developed in coupling beam significantly. And CW-CS which has circular opening failed in shear showing development of diagonal cracks at wall toes and wall mid-height. It is thought that degradation of the wall strength is under the control of the opening shape and coupling beam-wall connection area.

• Journal of East-West Nursing Research
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• v.5 no.1
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• pp.75-89
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• 2000

Today, elderly population have tendency to increasing much fast in the world. As aging. elderly people have been changing more in physical, psychological, mental and there is spring to more concerns of health management on old period. But particularly sexuality have been little viewed in health management of elderly people. This is considered that there is bring on complex issues of mental-social, social. cultural, psychological, physical situation with negligence of sexuality on elderly-selves. This research was attempted to provide as basic data for east-west nursing intervention of elderly sexuality through literature view about east-west nursing view and management on elderly sexuality that we attend yet. Conclusively, oriental nursing management, for sexual management of elderly people, is ; 1. Decrease coitus times as physical conditions. 2. If sexual need is present, it don't inhibit painfully. 3. Somebody who have hepatitis, diabetes, heart disease, poor constitution avoids coitus. And western nursing management, for sexual management of elderly people, is ; 1. There is approaching with psychological, pharmacological, technical, surgical area in healthy sexual rehabilitation by Smith(1999). 2. Psychological-Social approaching method by Hooyman & Kiyalk(1996) can be provided for elderly sexuality. As this, concrete nursing intervention can be applied and additional counsel is needed with professional medical-nursing team. Through there understand and percept importance and need of elderly sexuality management on results of literature view, as above, concrete east-west nursing intervention of elderly sexuality will be researched. And research which confirm the meaning, How elderly people, themselves have been perceived, will be processed. This will have more contribution on elderly-oriented nursing intervention without false viewing of elderly sexuality.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.4
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• pp.1833-1843
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• 2011

Recently, Our society socioeconomically has faced the sudden changes. The retirement of the baby-boom generation is expected to become mainstream amid the falling birth rate and the aging society at the fastest rate in the world. As such a baby-boom generation is a core pillar of our economic development in the 1970s and 1980s, the rehiring difficulties after retirement, the insignificant old age preparation and their welfare and medical problem has become national issue. The government has implemented the policy for promoting the senior entrepreneur to participate productive economic activity by actively utilizing the senior's strength from this year. However, in spite of the importance of such a senior entrepreneur, the research to study the senior's desire and the concrete characteristics of the senior entrepreneur is nonexistence. Therefore, this paper empirically analysed the senior's concrete nature, entrepreneurial intention and the impact on the senior entrepreneurship, which is the core of the success entrepreneur and provided stimulating measure.

• The Journal of the Korea Contents Association
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• v.18 no.11
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• pp.455-461
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• 2018

This paper presents experimental investigations about flexural strength and durability of reinforced concrete beams repaired using ductile fiber reinforced cementitious composite (DFRCC) and carbon fiber sheet through freezing and thawing test. Total 14 RC beams of $100{\times}100{\times}400mm$ size were tested by 3-point bending and freezing and thawing test by KS F 2456. The beams were reinforced using 3D10 steels on both the tensile and compressive sides, and repaired on 3 sides expect on top cycle. Test results showed that the beams repaired using fiber carbon sheet revealed about 15% higher values of flexural strength compared than the cases of DFRCC motar. On the other hand, the results did not showed meaningful differences in the aspect of durability. For further research, consideration of the steel interference effect and real old specimens such as taken from real deteriorated structures are needed to be tested after repairing with DFRCC and carbon fiber sheet.

• The Journal of the Korea Contents Association
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• v.20 no.12
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• pp.529-536
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• 2020

This paper presents experimental investigations about compressive strength and durability of reinforced concrete compressive members repaired using ductile fiber reinforced cementitious composite (DFRCC) and carbon fiber sheet through freezing and thawing test. Total 24 RC specimens of 100x100x400mm size were tested by compressive strength test and freezing and thawing test by KS F 2456. The specimens were reinforced using 4D10 steels and repaired on 4 sides expect on top cycle. Test results showed that the specimens repaired using fiber carbon sheet revealed about 5% higher values of the compressive strength compared than the cases of DFRCC motar. On the other hand, the resurts did not showed meaningful differences in the aspect of durability. For further research, considerations of the steel interference effect and real old specimens such as taken from real deteriorated structures are needed to be tested after repairing with DFRCC and carbon fiber sheet.

• Journal of Korean Society of Steel Construction
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• v.22 no.5
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• pp.445-453
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• 2010

Recently, the remodeling projects of old low-rise buildings were launched in Korea. However, most of them were not satisfied with the value set forth by the KBC2005. Even though there are some research studies on how to improve the seismic performance of such buildings as newly constructed buildings, there is little research in measuring the actual vibrations on low old buildings to prove the effect of retrofit. There also has not been any in-depth research on the dynamic characteristics of full-scale structures using vibration measurements of the building that was damaged to failure. Using an actuator, the dynamic characteristics of reinforced three-storey concrete buildings were evaluated before and after they were damaged. After an 80-mm horizontal displacement by the actuator, frequency in the long and short directions were reduced to 20.85% and 5.77% respectively ; damping ratio was also reduced to 53.9% and 23.15% respectively.

• Journal of Convergence for Information Technology
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• v.10 no.9
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• pp.183-190
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• 2020

The purpose of this study is to conduct computational thinking-based software education for a 5-year-old, and to analyze educational meanings. For the study, a total of 10 activities were applied for 50 children at two kindergartens located in Seoul and the collected data were analyzed qualitatively. As a result of the study, the educational meaning that founded to young children in software classes was finding problems in prior experiences, approaching the simulation process with stories, and feeling of interest and achievement through software devices. The educational meanings that founded to the teacher were to ask questions to support the procedural thinking process, to lead the thought process to concrete experiences, and to move between group activities and individual activities appropriately. In the future, research on the effectiveness of computational thinking-based software education should be conducted.

• Tunnel and Underground Space
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• v.10 no.4
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• pp.516-525
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• 2000

Recently, the demand for pollution-free demolition work of old reinforced concrete and steel structure has rapidly increased as the redevelopment of urban area has been accelerated. This study deals with linear shape charges for explosive jet cutting on steel structure. We have tested material and shape of steel structure, characteristics of thickness and strength, shape of linear shape charges, type of shape charges, cumulative charges, type of liner, stand-off distance, detonation method. effect of sound and vibration by air blast in explosive jet cutting method. So, We developed linear shape charges in order to take advantage of optimum explosive jet cutting condition. Shape charges were made of PETN explosives. We obtained the experimental formula to decide the amount of explosive needed for thickness of steel structure plate. There are prospects for application of the explosion curving technology under the open space conditions for dismantling the steel structure and steel bridge, scrapped old boats, which are going out of service.

• Korean journal of communication and information
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• v.60
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• pp.172-192
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• 2012

Over the last ten years, media convergence and multiple platform expansion have affected the ways that people watch conventional television. In the post-TV era, the growing use of the Internet and mobile multi-media devices, such as smart phones, as well as the availability of abundant television content, allows television consumption to be more personalized, diversified, and linked with various media activities, especially social media uses. This study attempts to examine how television viewing experiences have been transformed with the development of the trans-media uses. Based on Walter J. Ong's concept of relation-ism, which posits that new media transform the meanings and relevance of old media rather than making old media obsolete, this study will pay particular attention to how the cultural meanings of television viewing have been redefined in the post-TV era. For the examination, this study has looked at concrete cases of the television viewing experiences of 29 young people in their twenties. Based on in-depth interview data, this study discusses the newly emerging characteristics of television viewing, its temporal and spatial experiences, and the significance of television as a medium and as a social place.

• The Research Journal of the Costume Culture
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• v.26 no.2
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• pp.188-202
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• 2018

This study aimed to categorize women's body shapes by type after extracting prototypes of 25~34 year old Korean woman. The standardizing research service project conducted by the Ministry of Commerce, Industry and Energy in 2005, divided the age ranges of adult women into three groups: 18~24 years (young), 25~34 years (young-adult) and 35~49 years (adult). This study utilized this age division method to create a concrete body type categorization schema with the most marriageable period, 25 to 34 years old as target age the target age group. We used, measurement data from the 7th Korean Human Body Size Survey (Size Korea) for the body shape analysis. We completed a statistical analysis using the statistical program SPSS 21. After creating the body types using CLO 3D, which is based on the 7th Korean human body measurements, we input data for the average size for each type into the Avata. We then compared and analyzed the cross sections using the Rapidform XOR program. The results of the type-specific characteristics are as follows: big square body of obese body, small square body of plain flat body with tall, plain square body of plain flat with short, triangular body of lower body obesity there was. Significantly, the results of this study should facilitate the development of various apparel products using mass customization or easy-order systems.