• 한국IT서비스학회지
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• 제14권4호
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• pp.257-267
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• 2015

We propose a vehicle-mounted, location-aware mobile digital signage system that can be used for public transportation through mobile communication. This paper proposes the installations of the LED display panels at the backside of the bus., which display traffic information to cars behind the bus. Information to be displayed would include, but is not limited to, road information, public commercials and private commercials. We propose the system architecture and further implement the prototype of mobile digital signage system for demonstration. The system is based on the Client-Server system. Each bus has a client terminal which detects the current location by a GPS receiver and sends its location information to the server using mobile communication function. The terminal device receives advertisements and traffic information from the server and displays it to the large LCD or LED panel installed at the inside and outside of the bus. We use the Android smartphone as a client system, which inherently equipped with GPS and mobile communication function. GPS detects the location of bus and reports its geo-location data to the traffic information center server via a wireless communication network. On the server side, we developed a specially designed control server, where it communicates with the other traffic information center and updates and manages the databases contents being displayed by each position. The server contains location dependent variable information and returns selected information back to the vehicle in real time. Spatial database is used to process location based data. Server system periodically receives the real time traffic information from the road information center database. And it process the information by bus location and bus line number. In this paper, we propose a mobile digital signage service and explain the system implementation of this service.

• 한국도서관정보학회지
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• 제50권3호
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• pp.1-22
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• 2019

서양사회는 중세를 '암흑시대'로 폄하해 왔다. 그러나 중세 천년을 주도한 이슬람이 종이와 제지술, 아랍 번역본을 서양에 전파하지 않았다면 희랍 라틴어 번역과 전수, 구텐베르크 인쇄술, 종교개혁, 르네상스는 태동할 수 없었다. 그들은 고대 지식문명 파괴자가 아니라 복원과 부활의 주역이었다. 그 거점이 무슬림 공동체로 회자되는 모스크와 이슬람 도서관(지혜의 집)이다. 이에 본 연구는 중세 이슬람 왕조의 성립과 아라비아 반도, 아프리카, 이베리아 반도를 지배하는 과정에서 등장한 이슬람 도서관을 추적했다. 이를 위하여 왕실이 주도한 칼리프 도서관, 모스크에 병설된 공공도서관, 재상과 학자 등이 설립한 개인도서관으로 대별한 후 중세 이슬람 도시인 다마스쿠스, 메카, 바그다드, 알레포, 코르도바, 카이로, 페스, 튀니스 등의 주요 도서관 흔적을 중심으로 역사와 발전, 역할과 기능, 인류문명에 미친 영향과 중요성, 침체와 쇠퇴 등을 분석했다.

• International Journal of Computer Science & Network Security
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• 제21권12spc호
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• pp.629-635
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• 2021

In the spring, 2020, the pandemic caused quarantine and all educational institutions switched to distance learning, which led to significant changes in the field of education around the world. It has become necessary to build its capacity to provide distance learning to protect education and create opportunities for more individualized approaches to teaching and learning not only during future pandemics but also during other possible issues, such as natural disasters, when a developed flexible curricula could be taught face-to-face or online. The article presents an analysis of distance education in the world during a pandemic, analyzes significant changes, and implements measures in the field of education in Ukraine and around the world. The role of public and international organizations in the implementation of quarantine in the conditions of COVID-19, which partially took over the functions of state and local authorities, is emphasized. The closure of schools under COVID-19 has led to a de facto deterioration in learning outcomes, so we have analyzed the effects of distance learning and digital inequality in the world. It is shown how the COVID-19 pandemic affected access to public services in Ukraine.

• 한국콘텐츠학회논문지
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• 제19권7호
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• pp.559-573
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• 2019

본 연구는 북유럽 국가의 복지국가모델이 소득증대와 어떠한 경제적 관계를 형성하고 있는지를 파악해서 우리나라의 사회복지 지출 체계와 비교 분석하기 위한 것이다. 구조방정식에서 변수 간의 장단기 경제적 관게를 파악할 수 있는 ARDL 공적분모형에 의한 실증분석 결과에 의하면 장단기탄력도가 모두 작기는 하지만, 사회복지 지출의 경우 한국과 핀란드는 민간지출이, 덴마크와 노르웨이는 공공지출이 증가할 때 명목 및 실질 GDP가 증가하는 것으로 나타났다. 그러나 스웨덴의 경우는 모든 사회복지 지출이 명목 및 실질 GDP를 증가시키지 못하는 것으로 분석되었다. 따라서 북유럽 국가의 체계적인 사회복지 체계가 소득불평등을 효율적으로 개선시키기는 하지만, 사회복지 지출의 확대가 소득증대나 국가의 경제성장을 견인하지는 못하는 것으로 나타났다. 즉, 사회복지 지출의 주요 기능은 소득불평등을 해소하는 것이며, 이를 활용한 소득주도 성장전략은 그 효과가 제한적이라는 것을 인식해야 할 것이다.

• 치위생과학회지
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• 제23권3호
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• pp.185-192
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• 2023

Background: The establishment of a strategy for the reduction and prevention of oral disease, a global pervasive disease, is considered one of the important national health policy strategies. In Korea, the 5th Comprehensive National Health Promotion Plan is currently in progress, but there is insufficient research on the transition process or improvement direction in the field of oral health. Methods: Changes in Comprehensive National Health Promotion Plan's Oral health sector in three countries were compared, and the direction of the three countries (Korea, the United States, and Canada) in accordance with the recent Oral health paradigm was confirmed. In this study, we reviewed the existing literature using the narrative review method to draw implications for strategies and directions for oral health promotion in Korea. Results: In Korea, the oral health promotion strategy is included in the 5th Comprehensive National Health Promotion Plan, and the project is being led by the government. The United States prepared a national-led oral health promotion strategy and suggested multi-disciplinary cooperation to improve overall oral health and reduce the oral health inequality. For more active intervention, Canada established an oral health-related department and assigned experts, while emphasizing cooperation between the government and the private sector. Conclusion: As a result of this study, Korea is also making efforts to improve oral health, but more active government intervention is needed to reduce the inequality in oral health by population group. To this end, it is necessary to establish a strong multi-sectoral cooperation system and prepare a strategy for implementation.

• 벤처창업연구
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• 제19권1호
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• pp.23-31
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• 2024

본 연구는 정부 주도사업이 투자자의 투자의사 결정 준거점에 미치는 영향을 실증적으로 탐색한다. 전망이론과 인적자원 이론을 접목하여 창업자의 인적자원 요소들을 준거점으로 활용하였다. 정부 주도사업의 영향으로 인해 투자자의 준거점에 변화가 있는지 실증적으로 탐색하였으며, 정부가 주도하고 지원하는 사업에 대해 민간이 투자할 때 고려해야 할 점을 시사한다. 연구 자료는 2017년 5월부터 2022년 5월까지 한국판 뉴딜에 해당하는 기업 51개와 해당하지 않는 기업 49개를 조사했으며 창업자 과거 창업 경험, 기술 산업 경력 기간, 경영관리 경력 기간, 최종학력 교육연수, 그리고 최종 졸업학교의 명성을 준거점으로 측정하여 연구를 진행했다. 회귀분석 결과 졸업학교 명성이 정부 주도사업과 부(-)의 영향을 미치는 것으로 나타났으며, 투자자의 준거점이 변화되는 것을 확인하였다.

• 항공우주정책ㆍ법학회지
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• 제29권1호
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• pp.97-126
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• 2014

October 4, 1957 the Soviet Sputnik 1 was launched into space the first time in the history of mankind. After launching, the realm of humankind was expanded to space. Today all countries of the world wage a fierce competition in order to utilize space for various purposes. World powers of space such as United States, Russia, China, and Japan, put reconnaissance satellites and ocean surveillance satellites into orbit, being able to easily see equipment and troops movement on earth. Each country makes efforts to occupy space assets through the militarization of space and expand national interests. Recently private companies or individuals involved in commercial space activities are becoming more prevalent. Thus, in addition to space activities for military purposes, commercial space activities become widespread. Individuals and private companies as well as nations are also involved in space activities. Outer space is not the monopoly of space powers such as the United States and Russia. The whole human race can benefit from free access to space, being the common heritage of mankind. In particular, outer space becomes an indispensable element of military activities and human life. Many countries are now entering space development, putting a lot of budget into new development programs. Republic of Korea also built the Narodo Space Center, starting its space development with budget and manpower. We have to find out ways to use space not only for military purposes but also for commercial space activities that can contribute to the national economy. In addition, through the joint efforts of the international community, we have to make efforts for preservation and peaceful use of space. Various issues relating to space activities and research should be studies in order to contribute to the progress of humanity. Those issues include the definition of outer space, space debris reduction and environmental conservation issues, non-bind measure cooperation - European International Code of Conduct, space law and national legislation related empowerment issues, arms control measures in space, and restrictions on the use of nuclear fuel. We also need to be involved in the discussion of those issues as one of responsible space countries. In addition, we try to find out regional cooperation schemes such as the ESA in the Europe actively. Currently in the Northeast Asia, cooperation bodies led by Japan and China respectively, are operated in the confrontational way. To avoid such confrontation, a new cooperative body needs to be established for cooperation on space exploration and information. The system to allow the exchange of satellite information for early warning of natural disasters needs to be built as well. In addition, efforts to enhance the effectiveness of the relevant international treaties on space, and fill in the blanks in international space laws should be made at the same time. To this end, we have to do a leading role in the establishment of standards such as non-binding measures (resolution) - Code of Conduct, being discussed in the UN and other organizations, and compliance with those standards. Courses in aerospace should be requires in law schools and educational institutes, and professional manpower need to be nurtured. In addition, the space-related technology and policy needs to be jointly studied among the private, public, and military groups, and the cross exchange among them should be encouraged.

• 우주기술과 응용
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• 제1권1호
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• pp.121-130
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• 2021

미국은 1960년대부터 민간 우주발사를 장려하기 위한 정책들을 수립해 왔다. 구체적으로는 인공위성의 제작 및 상용발사 공급자의 역할을 확대하기 위한 정책들을 펼쳐왔는데, 이를 위해서는 민간의 우주발사를 위한 프로세스를 정립할 필요가 있었다. 우주활동 초기에는 전체 발사 비율 중 민간 발사가 차지하는 비율이 적었으나, 1990년대 이후 꾸준히 증가해오다, 최근 대형 민간 우주기업들이 거대 프로젝트를 제시하며, 전체 발사 비율의 50% 이상을 차지하기에 이르렀다. 이와 같이 발사 주체의 다양화 및 궤도 상 우주물체의 증가는 기존의 우주환경 관리 프로세스의 관점을 변화시키는 계기가 되었다. 우주기술에 대한 진입 문턱이 낮아지며 우주물체의 운용기관 및 발사기관의 수가 획기적으로 증가하였고, 지난 60여 년간 누적된 우주쓰레기는 안전하고 안정적이며 지속가능한 우주 이용을 위협하고 있다. 본 논문에서는 민간의 우주발사가 가장 활발한 미국에서 상업우주발사를 관리하기 위한 프로세스가 어떻게 변화되어 왔는지를 살펴보고자 한다. 미국은 국방부, 상무부, 교통부, 항공우주국 등의 기관에 우주교통관리 서비스 기능을 분배하여 운영 및 제공하고 있다. 민간의 우주발사 활성화에 따른 미국의 우주교통관리 정책 변화에 대한 고찰은 향후 우리나라에서도 현실화 될 것으로 예상되는 민간의 우주발사에 대한 관리에도 시사점을 제공할 수 있을 것이다.

• 한국지진공학회논문집
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• 제22권3호
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• pp.103-111
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• 2018

This study examines the seismic failure of RC low-rise building structures having irregularities at the ground story during the 15 November 2017 Pohang, Korea, earthquake, $M_w=5.4$, which is the second strongest since the government began monitoring them in 1978 in South Korea. Some 2,000 private houses were damaged or destroyed in this earthquake. Particularly, serious damage to the piloti story of RC low-rise residential building structures of fewer than five stories was observed within 3 km of the epicenter with brittle shear failure of columns and walls due to severe torsional behavior. Buildings below six stories constructed before 2005 did not have to comply with seismic design requirements, so confinement detailing of columns and walls also led to inadequate performance. However, some buildings constructed after 2005 were damaged at the flexible side of the piloti story due to the high torsional irregularity. Based on these results, this study focuses on the problems of the seismic torsion design approach in current building codes.

• 한국IT서비스학회지
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• 제19권1호
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• pp.1-16
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• 2020

Suncheon City Regeneration Project is known as the concept of cultural residents. Through the previous projects, the residents' capabilities have been improved, and the projects have been carried out according to their strategies. For this reason, participants in urban regeneration projects are important. The purpose of this study is to actually identify the 'rescue center' and 'direct relationship' with the analysis utilizing the characteristics of social networks NetMiner solution of the participants, who led the project, Suncheon. Surveys and interviews were conducted for participants, and the characteristics of social networks were analyzed in time series to quantify and visualize the results. As a result of the analysis, social networks were changed among the participants before and after the urban regeneration project. Initially, loose networks were denser over time, and initially networks formed only around participants were expanded over time. Network analysis has revealed that the system is strengthening with urban regeneration projects in the form of public and public-private cooperation. This highlights the need for a city-centered urban regeneration strategy centered on people and shows that a dense network of participants can be a success factor.