• Journal of Digital Convergence
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• v.20 no.2
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• pp.185-190
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• 2022

The purpose of this study is to suggest library marketing strategies for Korean academic libraries to provide sustainable services at COVID-19 pandemic situation. For this purpose, development plans of academic libraries in Korea were collected and homepages of academic libraries in and out of Korea were analyzed. This study found that academic libraries in and out of Korea had taken various measures to meet disastrous situation and had kept up services for users to make use of collection, facilities, services and programs of libraries without being disconnected. As a conclusion, this study suggests reinforcement of basics and value marketing, space marketing, blue ocean marketing as library marketing strategies for providing sustainable services. This study can be used as a reference for academic libraries and librarians to sustain or extend library services. The marketing strategies suggested in this paper can be helpful for academic libraries to overcome pandemic crisis in Korea. As follow-up studies, an in-depth case study about academic libraries which develop and activate new services and programs in and out of Korea to face COVID-19, a study on developing in-depth strategies of various library marketing to stabilize library services are needed.

• Journal of Industrial Convergence
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• v.20 no.9
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• pp.131-139
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• 2022

The purpose of this study was to ensure that the elderly do not enter a facility even if their health deteriorates, but continue to live in the community and receive necessary care. According to the survey of the elderly, the cohabitation type of the elderly in Korea was that they lived with married adults and/or unmarried children in addition to single and married households. Therefore, in this study, using the SPSS 25 program, the effects of the elderly's socio-demographic characteristics and cohabitation type on the intention to continue living in the community was analyzed using the 2020 elderly welfare status survey data. The main research results are as follows. First, gender, age, and residence type of the demographic characteristics of the elderly were found to be statistically significant. Second, single households, married households, and households living with the eldest son revealed the statistical significance level of the elderly. Based on this, we were intending to provide basic data necessary for establishing welfare policies for the elderly, such as strengthening care and an age-friendly environment, in order to improve the continued residence of the elderly in the local community.

• The Korean Journal of Nuclear Medicine Technology
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• v.26 no.1
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• pp.15-26
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• 2022

Purpose Recently, in the process of examining the self-disposal of radioactive waste by the Korea Institute of Nuclear Safety, it is difficult to reach the final approval process for self-disposal. In connection with this, we intend to increase the processing efficiency of self-disposal and strengthen safety by analyzing cases of recent supplementary matters. Materials and Methods From 2018 to 2021, we compare and review a supplementary requests that preparing the procedures and plans for the self-disposal of radioactive waste by 20 institutions. In this regard, based on the provisions of the Atomic Energy Safety Act, we derive a detailed proposals for the self-disposal of radioactive waste by arranging the review processing period calculation and supplementary requests that occurred during the review process. Results The representative supplementary requests of the Korea Institute of Nuclear Safety are the calculation of the storage period by type and nuclide of radioactive waste, the contents of the packaging container, the RASIS reporting method, the planned storage method for self-disposal, confirmation of the final disposal company, and the storage period of the waste filter Calculation, radioactive labeling, etc. And it is emphasized as important. Conclusion The expected effects of the guidelines reflecting the latest supplements include reduction of the time required for document preparation and increase of work processing efficiency, improvement of storage efficiency in the radioactive waste storage room, and economic cost reduction. If the radioactive waste self-disposal guideline presented in this study is applied to the field, it is thought that it will be helpful in improving the work efficiency of those who are experiencing difficulties.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.2
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• pp.175-183
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• 2023

In a broadcasting market environment that has a close interdependence between platform operators and content operators, problems such as conflicts over program usage fees, and home shopping transmission fees are intensifying. This study attempted to analyze the environment of the domestic broadcasting market and present implications, analyze the cause of user fee conflict between the platform and PP, and propose detailed alternatives to resolve user fee conflict disputes. The results of environmental analysis on the domestic broadcasting market are as follows. First, the growth engine of the broadcasting industry has changed to direct resources such as service usage fees and content fees, and commerce is increasing. Second, as hegemony in the domestic broadcasting market changes from terrestrial to paid broadcasting and OTT, monopolies in the entire broadcasting area are being dismantled by voluntary entry. Third, the need to overhaul the existing regulatory system is increasing due to the dismantling and reorganization of the existing broadcasting market. On the other hand, this study proposed a strategy to diversify the profit structure of PP, supply program after pre-contracting, and strengthen CPS bargaining power in order to resolve disputes between paid broadcasting platforms and PP sharply. In particular, as strategies to strengthen CPS bargaining power of small and medium-sized SOs, it proposed to jointly improve CPS-related systems through IPTV and individual SOs, to redefine fees for programs and to voluntarily use programs.

• Journal of the Korean Society of Marine Environment & Safety
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• v.28 no.7
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• pp.1222-1230
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• 2022

The rotor blade is an important component of a tidal stream turbine and is affected by a large thrust force and load due to the high density of seawater. Therefore, the performance must be secured through the geometrical and structural design of the blade and the blade structural safety to which the composite material is applied. In this study, a 1 MW class large turbine blade was designed using the blade element momentum (BEM) theory. GFRP is a fiber-reinforced plastic used for turbine blade materials. A sandwich structure was applied with CFRP to lay-up the blade cross-section. In addition, to evaluate structural safety according to flow variations, static load analysis within the linear elasticity range was performed using the fluid-structure interactive (FSI) method. Structural safety was evaluated by analyzing tip deflection, strain, and failure index of the blade due to bending moment. As a result, Model-B was able to reduce blade tip deflection and weight. In addition, safety could be secured by indicating that the failure index, inverse reserve factor (IRF), was 1 or less in all load ranges excluding 3.0*Vr of Model-A. In the future, structural safety will be evaluated by applying various failure theories and redesigning the laminated pattern as well as the change of blade material.

• (The) Research of the performance art and culture
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• no.23
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• pp.159-183
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• 2011

Pansori has both the features of drama and music. In 19th century, prime time of pansori, it had balance of the features between drama and music. But after the late 19th century, pansori has lost the features of drama, and it has been changed into a music centered art performance. This is the phenomenon came from that the upper class accepted and dominated the pansori which had been a performance art of the lower class. The Korean upper class people tend to disdain drama, but to revere music. Nerremsae is dramatic action and ballim is musical gesture in pansori. In 19th century, pansori had plenty of nerremsae, which provided a elaborative symbolic system after the conventional rule of drama. However current pansori actors use only ballim except nerreumsae. Chuimsae like 'ulssigu' is the way to participate in pansori by audience. The actor provides the space for the audience to fill it after inducement by drummer. Through the chuimsae, actor, drummer, and audience share the sympathetic emotional experiences. However the audience in these days do not do chuimsae, but do applause like in western dramas. In western dramas, distinction between tragedy and comedy is relatively clear. The tragedy is constantly tragedy, and the comedy is also constantly comedy. However joy and sorrow are coexisted in Korean pansori. These two contradictory emotions are collided and produce a new strong emotion in a pansori. This is one of very important feature of pansori. Even though each of tragedy and comedy reveals the only one side of life, pansori comprehensively reveals a total human life. However these strong emotions have been much weakened nowadays. Currently pansori has been much declined. For restoration of pansori, it is necessary to revive the drama side in pansori performances.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.8 no.1
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• pp.221-228
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• 2018

The purpose of this study is to examine the environmental factors influencing the multicultural acceptability of adolescents, and to improve the multicultural acceptability of adolescents. This study seek to confirm family environmental factors, school environmental factors, community environmental factors on the multicultural acceptability of adolescents, and provide an alternative to increase the multicultural acceptability of adolescents. This study used data from the first grade of middle school in the Korean child and youth panel data, and a total of 2,278 data were used for analysis. The analysis was done by multiple regression analysis through SPSS 18.0. The results were as follows: the environmental factors shown to significantly affect the multicultural acceptability of adolescents were school factors, such as school adaptation, and community factors, such as community awareness and community consciousness. As a result, it was found that school adaptation, school environment factors, community awareness and community consciousness affect the multicultural acceptability of adolescents. These results suggest that the role of school environment and community environment is important for enhancing the multicultural acceptability of adolescents. In the school environment, various education and programs should be prepared, and in the community environment, it is necessary to strengthen the role of the community and community consciousness.

• Korea Science and Art Forum
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• v.24
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• pp.321-332
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• 2016

As functions of public library has become diversified, proper environment color plan enhancing a supporting environment of user based on a function of public library should be achieved by utilizing space chromatics which is a psychological environmental factor. Therefore, public library's color environment of each space functions should be understood and the foundation of color plan enhancing supporting environment of user should also be established under the premise that public library color environment which supports integrated functions to every local residents by meeting functional roles of library. As functions of public library expands, this study has its purpose to analyze color environment characteristics by mainly focusing on library of Busan region to study color environment supporting function of each space. Through a literature research, function and role of color, environment color have considered, and through a preceding research analysis on public library's present condition analysis and tendency of library color preference, theoretical background on library color environment has deducted. By researching present condition of environment color application at 9 public libraries located at Busan, the environment color characteristics of library has deducted through an image adjective analysis using color system, coloration analysis, IRI(Image Research Institute) color image scale. This study can be provided as a reference data for environment color plan based on spatial function to enhance supporting environment of public library user, and it is expected to utilize in the library facility plan which has been diversified.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.448-448
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• 2021

최근 급격한 기후변화와 도시화 및 산업화로 인한 지류하천에서의 수량과 수질의 변동은 생물 다양성 감소와 수생태계 건강성 저하에 큰 영향을 미치고 있다. 효율적인 수생태 관리를 위해서는 지속적인 유량, 수질, 그리고 수생태 모니터링을 통한 데이터 축적과 더불어 면밀한 상관 분석을 통해 수생태계 건강성의 악화 원인을 규명해야 할 필요가 있다. 그러나 수많은 지류하천을 대상으로 한 지속적인 모니터링은 현실적으로 어려움이 있으며, 수생태계의 특성 상 단일 영향 인자만으로 수생태계의 건강성 변화와의 관계를 정확히 파악하는데 한계가 있다. 따라서 지류하천에서의 유량 및 수질의 시공간적인 변동성과 다양한 영향 인자를 고려하여 수생태계의 건강성을 효율적으로 예측할 수 있는 기술이 필요하다. 이에 본 연구에서는 경험적 데이터 기반의 머신러닝 모델 구축을 통해 미계측 하천에서의 수생태계 건강성 지수(BMI, TDI, FAI)의 등급(A to E)을 예측하고자 하였다. 머신러닝 모델은 학습 데이터셋의 양과 질에 따라 성능이 크게 달라질 수 있으며, 학습 데이터셋의 분포가 불균형적일 경우 과적합 또는 과소적합 문제가 발생할 수 있다. 이를 보완하고자 본 연구에서는 실제 측정망 데이터셋을 바탕으로 생성적 적대 신경망 GAN(Generative Adversarial Network) 알고리즘을 통해 머신러닝 모델 학습에 필요한 추가 데이터셋(유량, 수질, 기상, 수생태 등급)을 확보하였다. 머신러닝 모델의 성능은 5차 교차검증 과정을 통해 평가하였으며, GAN 데이터셋의 정확도는 실제 측정망 데이터셋의 정규분포와의 비교 분석을 통해 평가하였다. 최종적으로 SWAT(Soil and Water Assessment Tool) 모형을 통해 예측 된 미계측 하천에서의 데이터셋을 머신러닝 모델의 검증 자료로 사용하여 수생태계 건강성 등급 예측 정확도를 평가하였다. 본 연구에서의 GAN에 의해 강화된 머신러닝 모델은 수질 및 수생태 관리가 필요한 우심 지류하천 선정과 구조적/비구조적 최적관리기법에 따른 수생태계 건강성 개선 효과를 평가하는데 활용될 수 있을 것이다. 또한 이를 통해 예측된 미계측 하천에서의 수생태계 건강성 등급 자료는 수량-수질-수생태를 유기적으로 연계한 통합 물관리 정책을 수립하는데 기초자료로 활용될 수 있을 것이라 사료된다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.43 no.1
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• pp.9-20
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• 2023

For highway concrete structures, the deterioration of the structure is accelerated due to the increase in the use of deicing materials, and sectional repair work is being frequently carried out to restore performance. However, after the repair work, re-damage such as cracks, delamination, and poor bond performance is exhibited in the repaired sectional area. In this study, overseas repair material requirements were first analyzed, and present domestic requirements were improved repair material performance through field surveys of common concrete structures, laboratory experiments, and test construction on a disused concrete bridge. In addition, performancebased quality requirements were presented so that all materials that meet the required performance can be applied, and different test methods for each material were unified into concrete test methods for consistent test results analysis. The considered performance requirements were compression strength, bending strength, and bond strength for structural properties, and length change rate, crack resistance, thermal expansion coefficient, and elasticity coefficient were for dimensional behavior. For resistance to chloride penetration resistance and freeze-thaw resistance were presented as durability. The proposed requirements for concrete repair materials are expected to contribute to the improvement of the quality of concrete sectional repair work in Korea.