• Journal of the Korean Geographical Society
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• v.38 no.2
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• pp.324-334
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• 2003

The essential Policy for solving the problems of the Seoul Metropolitan Region is the relocation of national pivotal functions into the non-Capital Region. The decentralization of pivotal functions should be pursued at the national level. National public institutions should be moved according to the characteristics of the institution itself and the regional function and specialization. Primarily, after selecting target institutions from the administrations at the vice-ministerial level, affiliated organizations, government-funded agencies, and institutions invested tv governments, we need to develop various measures to diminish the problems and obstacles resulted from the relocation of public sector. The construction of the new administration capital city is one of the alternatives which solve the problems of the Seoul Metropolitan Region and improve the regional inequality. It is very much important that the Korean citizens agree to the construction of the new administration capital city.

• Journal of the Korean Geosynthetics Society
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• v.18 no.3
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• pp.89-100
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• 2019

The purpose of this study is to analyze the characteristics of bearing capacity of pre-bored super strength PHC (SSPHC) piles socketed in rocks based on dynamic load test results. Because the SSPHC piles have high compressive concrete strengths compared with those of regular high strength PHC piles, the allowable structural strengths of the SSPHC piles were increased. For optimal design of the super strength PHC piles, the geotechnical bearing capacity of the SSPHC piles should also increased to balance the increased allowable structural strength of the SSPHC piles. Current practices of pile installation apply the same amount of driving energy on both SSPHC and high strength PHC piles. As results of analyzing factors that influence bearing strength of SSPHC piles using dynamic load test, there was no relationship between SPT-N value at pile toe and end bearing capacity. But driving energy effects on end bearing capacity. In case of skin friction, driving energy had no effects. And reasonable method verifying design bearing strength is necessary because end bearing capacity is not considered sufficiently in restrike test results.

• Journal of Oral Medicine and Pain
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• v.32 no.1
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• pp.105-111
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• 2007

Correlation between occlusal contact pattern and TMD have been hypothesized and partially investigated but results are controversial and not conclusive. The purposes of this study were to compare right-to-left difference of occlusal contact pattern, through contact points, contact force and occlusal balance, in the patients with unilateral TMD and also to evaluate its change related with TMD treatment. 36 patients with unilateral TMD from Department of Oral Medicine in Dankook University Dental Hospital were selected in this study (M:F=7:29, mean age of $29.2{\pm}14.8$ years). A computerized T-Scan II system (Tekscan, INC., USA) was employed for occlusal analysis and the simultaneity and occlusal balance through the number of tooth contact and magnitude of contact force were determined before and after TMD treatment. The number of contact points and contact force was more on the unaffected side than the affected side before treatment (p=0.056 and p=0.060, respectively) while significant difference between both sides was not found after treatment. The number of contact points and contact force on the affected sides significantly increased after treatment (p=0.038 and p=0.052), but the unaffected sides exhibited no significant difference between before and after treatment. In addition, sides difference in relative contact force decreased from about 27% to about 12% after TMD treatment (p=0.001). According to the results of this study, it is likely that unilateral TMD impairs right-to-left occlusal balance and that conservative TMD treatment alleviates the imbalance, subsequently leading to more symmetrical occlusal condition with increased contact points and force.

• The Journal of Korean Association of Computer Education
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• v.15 no.1
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• pp.1-11
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• 2012

Developing middle and high students' information literacy and creative problem-solving skills in this information-oriented society is very important and for this reason, the subject of informatics has been established. However, little research on creative problem solving literacy of informatics textbooks has been conducted. Therefore, the purpose of this paper is to quantitatively analyze whether 'problem-solving methods and procedures' parts in informatics textbooks in middle schools present creative problem solving literacy or not and in what degree. Data were quantitatively analyzed using the Gil-Su Choi method. The result of data analysis indicated that all the textbooks turned out to be correct range in the category of the "composition of various learning activities," but got out of range in some categories such as "problem-solving process reflection" and "problem-solving strategy proposal". Also a few textbooks haven't satisfied in important indexes and activities. So, we suggest that more 'problem-solving process reflection' and 'problem-solving strategy proposal' parts should be included in the informatics textbook and more various forms of learning activities be utilized well as the ratio of activities needed primary and high mental processes be kept the balance.

• Journal of Digital Convergence
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• v.20 no.2
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• pp.241-250
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• 2022

Due to the COVID-19 pandemic, with increased 'untact' services and with unstable household economy, the bike insurance fraud is expected to surge. Moreover, the fraud methodology gets complicated. However, the fraud detection model for bike insurance is absent. we deal with the issue of skewed class distribution and reflect the criterion of fraud detection expert. We utilize a balanced random-forest algorithm to develop an efficient bike insurance fraud detection model. As a result, while the predictive performance of balanced random-forest model is superior than it of non-balanced model. There is no significant difference between the variables used by the experts and the confirmatory models. The important variables to detect frauds are turned out to be age and gender of driver, correspondence between insured and driver, the amount of self-repairing claim, and the amount of bodily injury liability.

• Proceedings of the KIEE Conference
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• 2006.07a
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• pp.357-358
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• 2006

전력 산업이 자유화되고 경쟁을 통해 효율성을 증가시키려는 시도가 이루어지고 있다. 전력이 시장을 통해 거래되는 형태가 완전경쟁에 가까울수록 사회후생이 증가한다는 것이 알려져 있다. 하지만 발전 회사가 시장지배력을 행사하여 가격을 경쟁가격에서 벗어나게 함으로서 자신의 이익을 취하려 할 때 시장의 효율성은 감소하게 된다. 시장 지배력을 감소시키는 한 수단으로서 발전회사에 선도계약을 부과하는 방법이 있다. 발전 회사에 선도계약을 부과하는 방법을 사용할 때 어떤 회사를 선도계약 부과대상으로 삼을 것 인지와 계통의 송전제약 통에 대한 고려가 필요하다. 이에 대한 연구가 2모선 계통에 대해 게임이론의 혼합균형 개념을 통해 부분적으로 이루어져 있다. 본 논문에서는 3모선 계통에서 선도계약의 영향을 분석하고자 한다. 본 논문의 해석 결과에 의하면 3모선 계통에서도 선도계약은 상황에 따라 시장지배력의 감소 혹은 증가를 모두 불러올 수 있으며 기대사회후생에 부정적 영향 뿐 아니라 부정적 영향 역시 줄 수 있다.

• The Journal of Korean Association of Computer Education
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• v.7 no.3
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• pp.101-110
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• 2004

The present instruction using ICT has a problem that it inclines toward instructing the simple technique of information or communication technology. In this paper, to cope with this problem, we propose a new Teaching-Learning model using ICT. The previous teaching-learning models using ICT are investigated and analyzed. Then, the criteria for evaluating the ability to put information literacy into practice are evenly reflected in the proposed model, is evenly reflected. The result of experiment reveals that the proposed model enhances the ability to put information literacy into practice on 5 items of 6 qualitative evaluation criteria.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.987-988
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• 2007

리니어 모터는 일반적으로 회전하는 모터와 같이 여러 형상의 극간에서 발생되는 힘의 균형에 의해서 구동되는 것이 일반적이다. 특히 하나의 극간에서 미소 구동하는 리니어 모터는 구동력과 실제 이동하는 위치 사이에서 댐핑이나 무게와 함 사이에서 발생하는 가속력의 차이에 의해서 주어진 힘의 파형과 움직이는 위치의 괴적이 만들어가는 이동자의 위치 사이에는 다소 시간 처짐이 발생하게 된다. 본 논문에서는 구동력과 실제 이동하는 위치 사이의 시간 처짐의 원인으로 알려져 있는 여러 요소중 주파수와 입력전류를 변화시키고 이에 따른 선형전동기의 power factor의 변화와 공진주파수의 관계 등 선형전동기의 구동력 변화를 알아보았다. IT 기기 냉각용으로 제작한 횡자속 선형전동기에서 공진구동용 스프링을 장착하고 공진주파수 부근과 power factor가 가장 큰 값을 가지는 부근의 주파수를 선정하고 입력전류에 따른 전류, 전압, 위치, 역율을 알아보았다.

• Journal of Korea Fair Competition Federation
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• no.91
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• pp.2-7
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• 2003

새 정부가 국정비전과 국정과제의 하나로 추진하고 있는 $\lceil$공정과 투명$\rfloor$, $\lceil$자유롭고 공정한 시장질서 확립$\rfloor$은 곧 지배구조의 개선을 의미하는 것이다. 그리고 기업 지배구조의 개념 및 목표는 기업 내$\cdot$외부 이해관계자들의 견제와 균형을 통해 기업의 시장가치와 경쟁력을 높이는 것이라는 점에서 지배구조를 개선해 나가기 위한 모든 시장참여자들의 노력이 필수적이다. 특히 대기업집단의 지배구조는 시장에 미치는 영향력이 매우 크기 때문에 훨씬 더 투명해야 하고 바람직한 모델이 필요하게 되는 것이다. 그러나 제도의 완비보다 더욱 중요한 것은 그 제도를 운용하는 정부와 제도의 적용대상이 되는 기업의 의식의 변화라고 생각한다.

• Electronics and Telecommunications Trends
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• v.23 no.2 s.110
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• pp.23-33
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• 2008

IT 부품.소재산업은 기업 및 산업 경쟁력의 핵심요소이고, 경제 전체의 수출성과 및 균형발전에 중요하다. 또 고부가가치 중심 산업구조 재편의 핵심이며, 지속적으로 고도 성장할 전망이다. 한편, IT 융합은 IT, BT, NT, CT, ET, ST 등 6T를 중심으로 하는 기술간 융합과 건설, 조선, 자동차, 물류 등 IT와 전통산업간 융합으로 전개되고 있다. 본 고에서는 IT 융합시대의 도래에 따른 IT 부품.소재산업의 대응방향을 살펴보고 정책적 시사점을 도출하고자 한다.