• Convergence Security Journal
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• v.16 no.6_1
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• pp.51-58
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• 2016

"History is a mirror" means that we should be prepared for the threats of enemies through learning from repeating history. Currently South Korea is facing various provocations, including North Korea's nuclear weapons and missile s. For the protection of the life and property of its people, South Korea should regard North Korea as a main enemy and be fully prepared for the threats. The Korean War was a war between well-prepared North Korea and ill-prepa red South Korea. After Liberation, North Korean army incorporated the Chinese Communist army, placed battle equi pment with the support of the Soviet army, and finished corps-level training while South Korea at that time did not finish battalion-level training. In wartime and peacetime, an army should improve military security by concealing its own information and find its enemy's information. North Korea carefully prepared for the war, collecting information about the organization, deployment and operation of the South Korean army. South Korean army failed to cope with it and had hard times in its early battles. In this paper, I will emphasize the importance of military security, focusing on the Battle of Gaeseong, the early part of the Korean War.

• Archives of design research
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• v.12 no.2
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• pp.65-73
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• 1999

In Italy, numerous jewelry ornaments have been actively manufactured from long time ago, since Italian has been highly interested in jewelry from the ancient limes, therefor jewelry industry of Italy has been improved at an alarming pace with latest cutting-edge technology through their highly-talented artistic sense and workmanship of precious metals that have been inherited without any interruption based on the traditional history and culture. One out of five ornaments in the whole world is made in Italy, so Italy is the biggest maker to manufacture ornament made of gold, silver and precious stone recording more than 70 billion dollar of annual sales. The diversified composite factors-handmade oriented ornaments with artistic concept based on their inherited craftsmanship from generation to generation and refinedly and sensationally harmonized design -have resulted in development and mass manufacturing for ornaments. Now days the jewelry maker of Italy have actively introduced improved management know-how and international approach for marketing and made a strenuous effort to newly technology and creative design through close relationship with designers.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.187-190
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• 2008

China has had a long preference in red. The color, symbolizing the sun, has a special significance, which stems from ancient times. The worship of the sun in the primitive society has been inherited by means of the collective unconsciousness; the sun has represented a variety of values such as nobility, purity, integrity, prosperity, success, happiness, good fortune, auspiciousness, and still much more. This research studies how the Chinese artworks visualize the color 'red', emphasizing the image of China and her culture. To do this, "Red Color" in Chinese posters from the past to the present were analyzed. While the images in red were delivered with a strong political connotation in the middle of the 20th century, as time passes by, the world trend of globalization has led the recent poster design in China to present red as the color standing for Chinese tradition, culture and spirits, which have flown throughout the 5000-year-long history.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.126-126
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• 2011

우리나라에서 본격적인 수문조사와 하천조사가 실시되기 시작한 것은 1910년대 일제 강점기라고 할 수 있다. 이 시기에는 근대적인 기술에 의해 전국적인 수문관측망이 구축되었고, 외국에서 개발된 각종 계측장비가 설치되었다. 또한 유속계가 도입되어 하천에서 유량측정이 시작된 것도 이 시기이다. 본격적인 하천개수공사도 이 시기에 시작된다. 오랫동안 자연상태로 유지되어 온 하천에 직강화 공사가 대대적으로 실시되고, 홍수피해 방지를 위한 대규모 제방 사업이 시작된 것이다. 이에 따라 일제 강점기에 하천에 관련된 많은 변화가 발생하였고, 지금까지도 그 영향이 지속 되고 있다. 일제 강점기에 이루어진 우리나라 수문조사 및 하천공사의 역사에 대해서는 거의 알려진 바가 없다. 불과 몇 권의 문헌만이 알려져 있고, 이마저도 일본어로 작성되어 있음으로 인해 자료의 분석이나 활용이 이루어지지 못했다. 또한 일제 강점기라는 특수성으로 인해서 이 시기에 이루어진 하천관련 사업은 관심의 대상이 되지 못하였다. 그러나 비록 일제 강점기에 일본인들의 주도로 이루어진 하천사업이지만 우리나라 땅에서 이루어진 우리의 역사라는 점에서 이 시기에 이루어진 하천 관련 사업에 대한 자료의 발굴, 분석 등은 매우 중요하다고 판단된다. 본 연구에서는 일제 강점기에 발간된 수문조사, 홍수피해 조사, 하천조사, 공사연보, 조사연보, 논문 등을 발굴하여 분석하였다. 이 시기에는 조사에 대한 방대한 사업이 이루어져서 조선하천조사서, 수력조사서 등의 문헌이 발간되었다. 또한 1925년, 1934년 등 이 시기에 발생한 대홍수에 대해서 다양한 형태의 조사보고서가 발간되었고, 매년 하천공사나 수문조사 결과를 담은 연보가 발간되었다. 한강, 낙동강, 대동강에 대한 홍수예보를 위한 논문도 이 시기에 작성된 바 있다. 본 연구에서 발굴한 이와 같은 문헌은 모두 100여건에 이른다. 이 시기에 작성된 문헌들은 수문조사나 하천과 관련해서 중요한 정보를 담고 있다. 1911년부터 시작된 수위 및 유량측정에 대한 상세한 방법과 결과, 연도별 수문조사 결과, 하천 직강화 이전의 하천형태, 연도별 하상변화 내역, 대홍수시의 범람상황, 하천별 개수공사 내역, 하천공사와 관련된 각종 통계 등이 사진, 그림, 도표 등의 형태로 작성되어 있어 있다. 본 연구에서는 이와 같은 자료를 분석하여 정리하였다. 본 연구에서 분석한 일제 강점기의 수문조사와 하천에 대한 내용은 향후 하천복원, 수문통계 작성, 하천공사 등에 유용하게 활용될 것으로 판단된다.

• Journal of Digital Convergence
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• v.17 no.8
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• pp.61-69
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• 2019

This study analyzed the process of university mergers that took place in Finland and Norway in order to present policy implications for the Korean government considering university merger as an effective policy instrument for restructuring of the Korean higher education system. Based on reviewing the previous literature and related documents, researchers conducted a comparative case study on the context, strategies, and outcomes of the implementation of university merger policies of the two countries. The results of analyses suggested that combination of government's clear direction-setting and enhanced autonomy of merging institutions was essential for successful mergers. Considerations on upgrading the structure of the whole higher education sector to meet new needs of the future society were also suggested.

• Journal of the Korean GEO-environmental Society
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• v.12 no.8
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• pp.5-12
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• 2011

This study was performed to analyze the degree of rainfalls, the duration time of rainfalls, the inclination of slopes and other damage causes depending on the ground condition, when the landslide occurs by the rainfall. Based on that, a big and a small model soil box were compared to examine the features of landslides, which is ultimately for forecasting landslides. An artificial rainfall device was installed in the model box, and the large model box has a real-size slope in it. Also, various measures were fulfilled such as collapse forms, a pore pressure, an earth pressure and moisture contents in order to analyze the effect of the model box size on the landslide mechanism and to test the usability of a small model box as a material for landslide experiments.

• Journal of Information Technology Services
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• v.20 no.2
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• pp.13-31
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• 2021

Recently, delivery app services based on the O2O platform are increasing rapidly. Accordingly, various studies on O2O service have been conducted. Most of the studies are on consumer behavior in O2O services, and few studies on platform vendors have been conducted. Therefore, this study empirically analyzed the factors affecting the vender's intention to continuous use in the O2O delivery app platform service. Based on prior researches, we set the quality characteristics and network characteristics of the O2O platform as independent variables. The quality characteristics of the O2O platform consisted of system quality, information quality, and service quality, and the O2O platform network characteristics consisted of network externality and platform reputation. Perceived value and switching cost were set as mediated variables, and vender's intention to continuous use was set as dependent variables. For empirical analysis, we conducted a survey targeting vendors of O2O delivery app platform service, and conducted frequency analysis, factor analysis, reliability analysis, and regression analysis. As a result of the analysis, the quality characteristics of the O2O platform, such as system quality, information quality, service quality, and O2O platform network characteristics, showed that network externality and platform reputation had a positive effect on perceived value. The perceived value was found to have a positive effect on the switching cost and the intention to continuous use, and the switching cost was found to mediate the perceived value and the intention to continuous use. This study can contribute to the establishment of platform operation strategy as an empirical analysis on the factors that influence the intention of O2O platform vendors to use the platform continuously.

• Journal of the Korea Society for Simulation
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• v.30 no.1
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• pp.87-101
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• 2021

Required Operational Capability(ROC), which means the performance of a weapon system, is determined when estimating the requirements of a new weapon system. It is very important to define the ROC as it has a decisive influence from acquisition of a weapon system to tactical operation. In this study, we propose a simulation methodology to verify the ROC of the Para-Observation Munition(POM), a newly developed weapon system. To this end, we propose a discrete-event simulation model that takes main performance of the weapon system constituting the ROC and environmental factors that affect performance of the weapon system as input values, and outputs operational effect as a result value. It describes various simulation logic required to implement a simulation model, and explains how to verify ROC using various simulation results such as sensitivity analysis. POM is a weapon system that does not have a similar one and that is difficult to directly utilize the military analysis model. This study can be used as a methodology to analyze the ROC and predict operational effects of weapon systems such as POM.

• The Journal of Korean Academy of Prosthodontics
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• v.60 no.4
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• pp.382-394
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• 2022

The treatment of patients with severe periodontitis should be proceeded step-bystep through an accurate diagnosis of each patients' individual tooth and with a strategic treatment plan. Implant-supported fixed prosthetic restoration has the advantage of high patient satisfaction and stable vertical dimension compared to the removable partial denture. However, multiple teeth defect areas lacking hard tissue may be disadvantageous in aesthetic failure and longer treatment time. In addition, it takes a certain period of time to manufacture and install a conventional fixed prosthesis, and during this process, the provisional prosthesis must satisfy the mechanical, biological, and aesthetic requirements of teeth. The purpose of this article is to describe the fabrication of implant-supported fixed prosthesis through a step-by-step approach in a partially edentulous patient.

• Journal of Advanced Navigation Technology
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• v.26 no.5
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• pp.312-318
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• 2022

Currently, the Republic of Korea is facing the problem of a decrease in military service resources due to the demographic cliff, and is pursuing military restructuring and changes in the military force structure in order to respond to this. In this situation, the Army is pushing forward the deployment of a drone-bot combat system that will lead the future battlefield. The battlefield of the future will be changed into an integrated battlefield concept that combines command and control, surveillance and reconnaissance, and precision strike. According to these changes, unmanned combat system, including dronebots, will be widely applied to combat situations that are high risk and difficult for humans to perform in actual combat. In this paper, as one of the countermeasures to these changes, autonomous behavior software with a BDI architecture-based decision-making system was developed. The autonomous behavior software applied a framework structure to improve applicability to multiple models. Its function was verified in a PC-based environment by assuming that the target UAV is a battalion-level surveillance and reconnaissance UAV.