• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.370-372
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• 2022

In an on-demand economy that provides products and services immediately in response to consumer needs, consumers have a significant influence on pricing. In the travel-related fields, service providers are also making great efforts to reflect the needs of consumers and provide better services. In this paper, unlike many travel-related service platforms where sellers unilaterally determine prices, we propose a reverse auction-based service platform method in which consumers propose travel-related services and prices. The proposed matching service platform is expected to be able to provide two-way services differentiated from existing standardized travel-related services by analyzing the needs of various consumers and reflecting the collected response data.

• Proceedings of the Acoustical Society of Korea Conference
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• autumn
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• pp.305-308
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• 2004

경계요소법을 이용한 음향홀로그래피 구현에 요구되는 많은 측정 노력을 줄이기 위하여 강체 산란체를 이용한 홀로그래피의 기본이론을 제시하였다. 강체산란체를 음장에 위치시켰을 때의 기본이론을 제시하고, 피스톤의 자유공간방사경우에 산란체의 거리의 변화에 따른 음향진동전달함수의 특이성 변화를 관찰하였다.

• 건강소식
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• v.23 no.11 s.252
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• pp.4-8
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• 1999

함께 나누며 더불어 사는 복지사회. 활력과 경쟁력과 꿈이 넘치는 과학 도시. 21세기 대한민국 신(新) 르네상스 시대 개막ㆍㆍㆍ. 홍선기 대전광역시장이 추진하고 있는 '대전의 희망'이다. 때로는 시련과 역경이 있기도 했지만, 흐르는 물은 선두 다툼을 하지 않는다는 진리, 즉 모든 일을 상식과 순리로 풀어 나가야 한다는 소신을 갖고 그는 미래의 활기찬 대전을 위해 헌신하기를 주저하지 않는다. 대전이 우리 나라 과학과 행정의 중심 도시로서 새롭게 발돋움할 수 있었던 것도 홍 시장을 비롯한 대전 사람들의 끊임없는 노력이 밑거름이 되었음이 확실하다. 그래서 홍 시장이 키우고 있는 대전의 희망은, 그저 희망이 아닌 현실일 수 있을을 확신하게 된다.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.12 no.6
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• pp.616-622
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• 2000

This paper concerns the application of smoke and fire spread to road tunnel fire problems. When a road tunnel is on fire. a fire protection system of road tunnel have to offer an adequate escape space to human. Therefore, this study carried out a simulation for predicting a spreading path of smoke and fire. The evolution of the flow field is simulated with the low Reynolds number k-$\varepsilon$ turbulent model and SIMPLE algorithm based on the finite volume method.

• Journal of Christian Education in Korea
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• v.62
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• pp.11-41
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• 2020

This study is to suggest the tasks of Christian Education for developing empathic emotional ability of women in AI era through examining the meaning of empathic sensibilization and the examples of women overcoming the hardships of their times and bringing about change. Empathic sensibility is becoming a issue and empathy is emphasized in AI era. Because empathy is becoming a big support in overcoming hardships, and empathic emotion is showing human dignity, equality, service, devotion and consideration and so is forming a global community living together. And on investigation of the examples of women overcoming the hardships of their times, I found that as a woman with a sense and thought, as a historical human being, not as a gender, the tasks of Christian Education for developing empathic sensibility ability of women in AI era will be effort to be yourself, theological identity reestablishment of women and developing insight to read the times.

• Journal of Digital Convergence
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• v.14 no.12
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• pp.43-54
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• 2016

The purpose of this research was to develop a group counseling program for improving the psychological well being and mental health of the university entrants, and to verify the effectiveness of the program. The research procedure consisted of the program development step and the program verification step, and in detail, 6 steps of program development processes were established. The subjects of the research were 116 university entrants, and 15 group counselings were conducted. As the result, significant variations were shown in the scores of the psychological well being and mental health through the pre and post test on the group, and the experience report analysis evaluated that the objective of the program was accomplished. It is expected that these results would be helpful for suggesting various education methodology or education policy for the university entrants.

• The Journal of Society for e-Business Studies
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• v.19 no.1
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• pp.43-61
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• 2014

This research is an application of game theory to developing the supplier selection and demand allocation mechanism, which are the essential and major research areas of supply chain planning and operation. In this research, the most popular and widely accepted mechanism, the progressive reverse auction is analyzed and compared with the other game theoretic approach, Kalai-Smorodinsky Bargaining Solution in the viewpoint of holistic efficiency of supply chain operation. To logically and exquisitely compare the efficiencies, a heuristic algorithm based on Genetic Algorithm is devised to find the other optimal demand allocation plan. A well known metric, profit-cost ratio, as well as profit functions for both suppliers and buyer has been designed for evaluating the overall profitability of supply chain. The experimental results with synthesis data and supply chain model which were made to mimic practical supply chain are illustrated and analyzed to show how the proposed approach can enhance the profitability of supply chain planning. Based on the result, it can be said that the proposed mechanism using bargainging solution mayguarantee the better profitability for the whole supply chin including both suppliers and buyer, even though quite small portion of buyer's profitability should be sacrified.

• Korean Journal of Culture and Social Issue
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• v.20 no.4
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• pp.365-389
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• 2014

The present study aimed at investigating how those students who retook college entrance examination(or RCEE) appreciate the experience. For this purpose, three persons from each cell at the 2(satisfaction with college life: high vs. low) by 2 (evaluation of RCEE: positive vs. negative) combination among those who participated in Lee and Jung study (2014) were selected and were interviewed. Qualitative data analysis based on phenomenological approach produced seven categories and 19 subcategories, which were grouped on the temporal dimension. First, when they were at the midst of this RCEE experience, the college students saw this as adversity that should be overcome while they underwent a limit of pain they could bear. Second, the college students evaluated this experience as upgrading my life with wound left unseen. Finally, they assigned to both of the positive and negative aspects of RCEE experience the meaning that the experience made them accept themselves as they were. Given these results, implications, limitations of this study were discussed.

• Journal of Wetlands Research
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• v.16 no.1
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• pp.41-50
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• 2014

The purpose of this study is to evaluate the High Rate Spiral Clarifier(HRSC) availability for the improvement of polluted retention pond water quality. A lab scale and a pilot scale test was performed for this. The fluid flow patterns in a HRSC were studied using Fluent which is one of the computational fluid dynamic(CFD) programs, with inlet velocity and inlet diameter, length of body($L_B$) and length of lower cone(Lc), angle and gap between the inverted sloping cone, the lower exit hole installed or not installed. A pilot scale experimental apparatus was made on the basis of the results from the fluid flow analysis and lab scale test, then a field test was executed for the retention pond. In the study of inside fluid flow for the experimental apparatus, we found out that the inlet velocity had a greater effect on forming spiral flow than inlet flow rate and inlet diameter. There was no observable effect on forming spiral flow LB in the range of 1.2 to $1.6D_B$(body diameter) and Lc in the range of 0.35 to $0.5L_B$, but decreased the spiral flow with a high ratio of $L_B/D_B$ 2.0, $Lc/L_B$ 0.75. As increased the angle of the inverted sloping cone, velocity gradually dropped and evenly distributed in the inverted sloping cone. The better condition was a 10cm distance of the inverted sloping cone compared to 20cm to prevent turbulent flow. The condition that excludes the lower exit hole was better to prevent channeling and to distribute effluent flow rate evenly. From the pilot scale field test it was confirmed that particulate matters were effectively removed, therefore, this apparatus could be used for one of the plans to improve water quality for a large water body such as retention ponds.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.502-504
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• 2004

세계적인 SW 산업의 변화 추이로 볼 때, 우리나라 SW업체들도 SW개발 체제를 하루바삐 CBD로 전환해야겠다는 데 대해서는 의심의 여지가 없다. 기업의 CBD 능력은 지속적인 사업구조 조정 및 신규사업 창출이 불가피한 21세기의 경영환경에서 필수적으로 확보해야 할 기업 핵심 역량으로 간주되고 있다. 선진국에서는 CBD가 90년대 중반부터 본격화되어 이제는 기업 정보시스템 구축 방식의 주류가 되어있다. 국내에서도 금융, 국방 부분을 선도로 CBD에 의한 정보시스템 구축을 요구하기 시작했으며, 향후 그 수요가 급증할 전망이다. 그러나 문제는 CBD로의 전환에는 여러 가지 역경이 도사리고 있다는데 있다. 특히, 본 논문에서는 재사용성에 의해 기대되는 효과에 비해 실질적인 재사용의 결과도출을 이루지 못하는 문제점 개선을 위한 Opportunity Tree를 제안해본다. 또한, CBD로 전환함으로써 거둘 수 있는 이득이 무엇인지, 전환을 위해 갖추어야 할 조건이 무엇인지를 확인하고자 한다.