• 대한원격탐사학회지
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• 제21권5호
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• pp.433-443
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• 2005

This paper show that, without installation of expensive VR (Virtual Reality) program, the sharing information is possible through posting three-dimensional road structures on the web, and avoiding the conventional top-down decision making method, fast bottom-up communication is possible base on the Virtual GIS (Geographic Information System). In this paper, using Viewpoint Scene Builder, internet-based software, the transformation was conducted to give pertinent type for web posting. In order to use the completed route at the scene builder, the output with ASCII Export is required, and ASE (ASCII Scene Export) contains the property information including the coordinate and frame of mesh vertex. Through in advance recognition of the problems regarding route design and petition due to environmental rights infringement, the time and cost due to design alteration can be reduced. It's difficult to provide VR based on the internet because file that embodied with internet GIS was complicated and its capacity comes to scores of mega-bites. But, this study provides VR with internet according to a basis by simplification of files.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.1065-1068
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• 2008

Concrete is still one most common construction materials even in railway structures. As structures become massive and mega-sized, the importance of early age concrete quality control becomes more significant. Among various factors, relative humidity and temperature are the primary factors governing the early age quality. Temperature raise due to cement hydration causes stress, which can develop to cracking with internal and/or external restraints. Exposure conditions including ambient temperature, humidity and wind also significantly affect the cracking behavior of early age concrete. Among many of studies on the early age concrete behavior, investigation on the variation of temperature and relative humidity internal of concrete is not common. That is in part because the difficulties in measuring the relative humidity and temperature inside the concrete. This study used a digital sensor with an appropriate logger to measure internal temperature and relative humidity. This direct measuring method is expected to provide more reliable and comprehensive data acquisition on the early age behavior of concrete.

• 한국의상디자인학회지
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• 제21권3호
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• pp.81-91
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• 2019

Fashion exhibitions in museums are an important media to deliver ideas of fashion. Although it still arouses controversy, museums have become an ideal platform for fashion exhibitions since some fashion exhibitions have garnered successful results in mega museums. This can be considered as a cultural phenomenon and a new paradigm since fashion exhibitions in museums are closely related to new museums and fashion museology. Thus, this study examines the definition of 'fashion exhibitions in museums' based on new museums and fashion museology, and then lays the groundwork for its typology through an analysis of preceding research about fashion exhibitions from the 1970s to the present day. In consequence, fashion exhibitions in museums are categorized into five types; retrospective exhibition, survey exhibition, fashion photography and film exhibition, and consider both virtual exhibitions and fashion brand exhibitions.

• 통합자연과학논문집
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• 제12권1호
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• pp.1-8
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• 2019

Smart pole is one of mega trend in smart city development. It has multi-function to get as much as data from the street to better city management. And smart street lighting of smart pole as core part of smart city development is being implemented by many cities in globally. Refer to the latest edition of Navigant Research's Smart City Tracker includes smart city projects in 221 cities, a quarter of which are deploying smart street lighting ranging from initial pilots to citywide and regional deployments that span tens and even hundreds of thousands of lights. The most important feature of smart street lighting solution is "Connectivity" through the IoT technology. In order to implement the smart city, we should have so-called intelligent watchdog and mesh networked post for keeping the various smart city technology development progress and operation properly. Smart street lighting solution could be main infrastructure as an enabler for a range of smart city applications. We can talk about the expected role of smart street lighting for the smart city development on this paper.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.145-150
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• 2013

As a recent global trend, the majority of mega-size plant projects are delivered through EPC (Engineering, Procurement and Construction) contracts, where a single contract is awarded for engineering, procurement, and construction. Under this contracting mechanism, it is challenging for contractors to carry out the projects under traditional project management processes used in design-bid-build projects. A new EPC Plant, the POSCO Special Steel Plant in Changwon, was built successfully at the beginning of 2012 and it is currently in full-scale production. The project has encountered a number of major difficulties however, with some technical and managerial issues through its development process. As summarized in this paper, the authors (as project participants with the contractor) investigated it as a post construction analysis and recorded the Lessons-learned for future project management improvement.

• Asia Marketing Journal
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• 제11권2호
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• pp.53-72
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• 2009

In the summer of 2008, the movie Dachimawa Lee: Villain, Get on the Express to Hell is waiting for its first release. This movie is based on a short film which was tremendously popular when it was first introduced on the internet in 2000, and the director Ryu Seung Wahn is expecting a mega hit of the movie this summer. Showbox is one of the leading movie distributors in Korea. After a series of blockbuster hits such as Welcome to Dongmakgol, The Host, and The Chaser, Showbox is now in stagnation. Along with sluggish economy in Korea, most of recent movies distributed by them didn't even reach the breakeven. However, expectation on the upcoming movie, Dachimawa Lee, is higher than ever. Marketing department of Showbox has to decide what kind of media channel to choose and which marketing strategy to apply. It needs to make a decision about whether to target the so-called mania group or the general public of much bigger size. In this case study, the distinctiveness of the movie marketing and its process will be discussed. Moreover, the marketing strategies for Dachimawa Lee's success will be examined in the Showbox's point of view.

• Asia pacific journal of information systems
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• 제31권3호
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• pp.378-391
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• 2021

The low use of e-vehicles in Yogyakarta City and Pekanbaru City is an essential issue for local governments to maximize e-government policies in both regions. The purpose of this research is to analyze people's attitudes and factors influencing the community of e-Samsat (e-Vehicle tax) users in developing the UMEGA theory, namely technology and government trust. This is a quantitative research based on the philosophy of positivism, which is used to examine populations and individual samples. Data were collected using research instruments and quantitatively analyzed. Furthermore, the hypothesis of the obtained data was tested using SEM-PLS. The results showed that social influence does not affect attitudes of e-Samsat (e-Vehicle tax) users. Furthermore, the study showed that the development of umega theory by adding variables of trust in technology and government affects people's behavior in using e-Samsat services.

• Restorative Dentistry and Endodontics
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• 제31권2호
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• pp.96-102
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• 2006

본 연구는 현재 시판중인 $Profile^{(R)},\;ProTaper^{(R)},\;K3^{(R)},\;Hero\;642^{(R)},\;Hero\;Shaper^{(R)}$를 단면을 비교하고 이들 5가지 NiTi 파일과 사용방법에 따른 피로 파절 소요 시간을 비교하고자 시행되었다. 각 NiTi전동파일의 치근단 1/3을 temporary resin에 매몰시키고 다이아몬드 표면처리된 버로 잘라내어, 초음파를 이용하여 세척 후, 주사전자현미경으로 단면을 관찰하였다. 주기적인 피로 실험을 수행하기 위해, 회전속도, pecking 거리를 자동적으로 조절할 수 있는 장치를 제작하고 파일을 만곡된 상태를 재현하기 위하여 15도 경사진 금속 토막에 위치시키고 분당 300회전의 속도로 회전시켜 파일이 파절될 때까지의 시간을 측정하였다. 사용방법에 따른 실험군은 동적군과 정적군으로 나누고 pecking 거리는 3 mm, 6 mm로 하였다. 실험결과 동적군 보다는 정적군의 피로파절 소요시간이 통계학적으로 유의차 있게 짧았으며 3 mm, 6 mm의 pecking distance에 따른 영향은 나타나지 않았다. 결론적으로 NiTi전동파일은 pecking motion으로 사용하는 것이 피로파절을 줄이는데 도움이 될 것으로 사료된다.

• 대한교통학회지
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• 제24권6호
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• pp.7-19
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• 2006

지속적인 고속도로망 확충과 고속철도 개통 등에 따라fr개선 항공수요가 계속 감소하고 있다. 이러한 상황에서 각 공항과 지방자치단체에서는 지방공항을 살리기 위한 대책 마련에 심혈을 기울이고 있다. 이런 측면에서 본 연구는 고속철도의 등장으로 인한 대구국제공항의 현황을 분석하구 공항의 활성화를 위한 방안을 도출하고 대구공항개발에 대한 장 중단기간의 역할에 대한 로드맵을 제시하여 대구국제공항의 활성화를 통한 경쟁력을 확보할 수 있는 실질적인 이행방안을 제시하였다. 이런 관점에서, 대구시에 대구국제공항의 활성화를 위한 전담기구를 조직하여 일관적인 수요진작을 위한 지역 여행사지원, 대구국제공항을 주요항공 기지로 사용할 항공사의 지원, 일본의 지방도시에서 새롭게 개장하고 있는 공항에 대한 우선적 노선 개설, 중화권으로의 노선개설 및 확대 등을 적극적으로 추진할 것을 제안하였다. 건설교통부 차원에서는 인천국제공항의 허브화 지원만을 주요공항정책의 수단으로 삼고 있으나, 인천국제공항은 국가를 대표하는 공항으로 하되 수요의 흡수는 광역 수도권으로 하고, 향후 서해안권과 영남권의 거점 공항을 육성 할 필요가 있다. 국내 지방공항의 항공수요는지역인근의 자체 기종점 수요를 기반으로 하고 있어서 다거점 (1강 2중과 제주)으로 육성 할 필요가 있다는 견해를 제시하였다.

• 서비스연구
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• 제12권4호
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• pp.94-105
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• 2022

도심항공교통(UAM)은 전 세계 주요 도시의 인구 과밀화로 인한 지상 교통수단 포화의 대안으로 eVTOL을 활용한 도심 내 3차원 교통수단이다. 교통수단의 발전에서 디자인은 다양한 분야에서 역할을 해왔으며, 곧 상용화될 UAM의 디자인 활용방안에 관한 연구는 부족한 실정이다. 이에 현상 분석을 통해 미래환경을 예측하고 디자인의 활용방안에 관하여 선행연구에 대한 필요성이 증가하고 있다. 본 연구는 UAM을 대상으로 STEEP 분석을 하여 메가 트렌드를 도출하고, 이를 중심으로 UAM 분야에서 디자인의 활용방안을 제시하는 것이 본 연구의 목적이다. 연구방법은 다음과 같은 순서로 연구를 진행하였다. 첫째, UAM에 관한 선행문헌을 분석하여 UAM의 이론적 배경을 정립하였다. 둘째, STEEP 분석을 통해 UAM 중심의 미래환경 5대 트렌드를 도출하였다. 마지막으로 디자인 활용방안을 도출하기 위해 디자인 분야별(제품, 시각, 영상, 환경, 서비스) 전문가 5명과 STEEP 분석의 결과를 중심으로 디자인 활용방안에 대하여 토의하여 UAM 분야의 디자인 분야별 활용방안을 도출하였다. 본 연구를 통해 STEEP 분석의 결과에서 가장 빈도가 높은 디자인 분야는 제품 디자인과 서비스 디자인으로 구분되고 이와 관련된 디자인 개발이 중요한 것을 알 수 있었다. 추후 본 연구에서 디자인 활용방안으로 제시된 UAM의 정보제공 방안과 표시방법, 이용 과정에 대한 분석 후 고객 맞춤 서비스 디자인 등 UAM과 관련된 다양한 선행디자인 연구와 연계되어 UAM을 상용화하기 위한 기반환경 구축으로 이어지길 기대한다.