• Journal of the Earthquake Engineering Society of Korea
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• v.24 no.6
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• pp.285-292
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• 2020

The methodology classifying structural types of concrete buildings in the existing seismic fragility functions is too simple to estimate the fragility of existing residential buildings and neighborhood living facilities, especially those below five stories. Their structural types are dependent on information contained in the building register such as main use, total floor area, story, permission date, and first story floor area of the individual building. All of this information is not considered for classifying types in the existing functions; therefore, the goal of this study was to suggest a methodology that classifies structural types of concrete buildings by utilizing such information. The results of this study showed that the suggested methodology can classify structural types better than the existing methodology. Nevertheless, there is still a need to simplify the methodology because fragility estimation demands quickness rather than accuracy.

• Journal of the Korean Society for Precision Engineering
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• v.20 no.1
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• pp.118-125
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• 2003

As consumer's desire becomes various, agility of mold manufacturing is the most important factor for competitive mold manufacturer. Decision making process is required to produce optimal result of CAM systems in using commercial CAM system to generate tool path. The paper proposes a methodology fur computer-assisted tool selection procedures for various cutting type of rough, semi-rough and finish cuts. The procedure provides assistance for machining tool selection by analyzing sliced CAD model section of die cavity and core. Information about machining time for the generated NC-code is used to aid the tool selection. The module is developed with commercial CAM API. This module will be used fur the optimization of tool selection and planning process.

• Proceedings of the Korean Geotechical Society Conference
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• 2001.03a
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• pp.339-346
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• 2001

For temporary excavation support in private land area, the strand of ground anchor should be removed In order to get permission to install anchors. The extractable or removable-strand compression anchor system was developed and evaluated by a series of pull-out load tests. Anchor pull-out tests were performed on seven instrumented full-scale low-pressure grouted anchors installed in weathered soil at the Geotechnical Experimentation Site at Sungkyunkwan University, Four anchors are the compression type anchors and three are the tension anchors. Performance test, creep test, and long term relaxation test were performed and presented. Load distributor was developed in order to distribute large compressive stresses in grout.

• Proceedings of the IEEK Conference
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• 2007.07a
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• pp.49-50
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• 2007

We are now using separate ID Database, Permission System, OS and Standard Data Format in PC, Cell phone, IPTV service and these are not good in many kind of usage, data sharing, contents servicing and supervising efficiency To merge these multiple services into one system we need to make a single ID systems for all and this paper will gide you to the new ID system that was much better than the old one. This new type of ID system is made with 3D Data and this will give fantastic visual effect & rich information data to the ID users in 3D way which is much better than 2D image & Text information technology.

• Proceedings of the Korean Geotechical Society Conference
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• 2003.03a
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• pp.545-552
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• 2003

For temporary excavation support in a congested urban area, the strand of ground anchor should be removed to get permission of the private land to install anchors. But the strand doesn't need to be removed in the outside city area after use. So the anchor body, tension anchor, is fabricated in-situ. The unbonded length of This anchor has several strands, which wrap only one sheath. When the anchor body is carried into job-site or installed in the bore hole, the sheath is torn easily because it is a very week material. So the grout permeate into the torn sheath. Because of that, the load doesn't transfer to the bond length of ground anchors. It may indicate that load is being transferred along the unbonded length and thus within the potential slip surface assumed for overall stability of the anchored system. The load tests were performed on seven low-pressure grouted anchors installed in weathered soil to verify its problems. Four anchors(Type A) have the unbonded length, which consist of five strands and a week sheath and three anchors(Type B) have strands, which is covered by plastic sheath filled with grease, in the unbonded length. Both anchors are compared with load tests results.

• Proceedings of the KIEE Conference
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• 1995.07c
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• pp.1168-1170
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• 1995

The purpose of this thesis is to fabricate the hexamethyldisiloxane thin film by plasma polymerization method, and to investigate the electric conduction characteristics of plasma polymerized thin film. Current density was measured in being changed annealing temperature(room temperature${\sim}125[^{\circ}C]$) and electric field intensity($10^5{\sim}1.2{\times}10^6$[V/cm]). The current density of thin films fabricated at discharge power of $30{\sim}90$[W] showed $1.3{\times}10^{-11}{\sim}3.1{\times}10^{-12}[A/cm^2]$ after 10 minutes of permission of electric field. The current density increased gradually with increasing of annealing temperature and electric field intensity. The electric conduction type of thin films fabricated in discharge power of 90[W] agreed with Schottky type.

• Journal of the Korea Management Engineers Society
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• v.23 no.4
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• pp.125-141
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• 2018

As global competition is intensifying, companies are entering not only developed markets but also emerging and developing countries. In emerging and developing countries, business-to-governmental relations are an essential factor influencing the firm performance. The purpose of this research is to examine the effects of corporate political activities on firm performance. Using the BEEPS data developed by the EBRD and the World Bank, the effect of various bribery activities regarded as corporate political activities on the firm performance was examined. Also, the moderating effect of competition type on the firm performance was proved. As the results, the bribery contribution, which is a corporate political activity, has a positive effect on the firm performance. Specifically, when infrastructure bribery occurred, costs and sales were higher, and when permission bribery was granted, profits, costs, and sales were higher. In addition, the effect of bribery as a corporate political activity on firm performance is moderated by competition type. These findings have academic and practical implications for empirical analyzing of SMEs' firm performance, guidelines suggestion for entry into the other countries, generalization possibility of using credible data, developing and designing export support systems and programs. Finally, limitations of the research and future research directions were discussed.

• Journal of the Korean Association of Geographic Information Studies
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• v.22 no.4
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• pp.59-71
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• 2019

In Mountainous Districts Management Act of Korea Forest Service, slope and elevation criteria are operated to regulate the indiscriminate use of risky land parcels when forestland is converted to other land use types. However, there is a limitation in considering topographical variation with only such two indices in the land parcel. Therefore, in order to supplement insufficient criteria, the slope type standard was developed using Catena, and the ecological condition improved terrain standards. Firstly, the ratio of 'risky slope' in a target forestland parcel was defined to decrease the risk of disasters such as landslides. Secondly, the standard of the ecological location condition was proposed as ecological score by integrating age, diameter and soil depth classes in the target forestland parcels. Thereby, we could prepare reasonable standards that can reduce forestland disasters and ecological damages, as suggesting new topographical and ecological assessment methods for forestland use conversion.

• Korean Journal of Childcare and Education
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• v.5 no.2
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• pp.91-112
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• 2009

The purpose of this study was to analysis children's engagement behavior and teachers' linguistic behavior by type of group activity in kindergarten. The subjects were 45 children and 2 teachers of 5 years' class in 2 kindergarten. The data were collected by 16 times observation in general classrooms for 4 weeks to explore the children's engagement behavior and teachers' linguistic behavior. The results of this study are as follows: Firstly, the large group and structural activity from initiated teacher's plan. Secondly, children's watching and listening behavior was most frequently shown in academic large group activity. And children's active engagement behavior was most frequently shown in free play of peer group. Finally teachers explained and directed frequently in academic large group activity. And teacher praise and permission was frequently shown in free play of small group teacher-child interaction. Consequently, it is important to recognize the relationships between the activity type and children's engagement behavior in organized daily program for early child education.

• Journal of the Korea Convergence Society
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• v.10 no.11
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• pp.437-444
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• 2019

The purpose of this study is to stereotype the subjective perception of multicultural societies of university students and to identify the characteristics and differences by types. To this end, the Q methodology was utilized and 31 college students were selected. According to the analysis, there were four types of university students' perception on multicultural societies. Type 1 was an 'aggressive acceptance' which aggressively and positively embraces multicultures. Type 2 was a 'its national first priority', which put the Korean first before immigrants. Type 3 was 'reasonable acceptance' that accepts multiculturalism within the reasonable and legal bounds. Type 4 was 'limited permission' which agrees to accept immigrants restrictively. Based on the results of this study, thought-provoking ways needed to realize multicultural societies were explored.