• The Journal of Korean Academy of Prosthodontics
• /
• v.37 no.2
• /
• pp.269-288
• /
• 1999

현재 골 유착성 임플랜트는 안전하고 유용한 보철 수복 분야의 하나로 자리잡아 가고있다. 과거 완전 무치악 환자에게 있어서 저작 기능의 회복이란 면에 중점을 두었던 경향에서 현재 골유착 임플랜트의 높은 성공률에 의해 부문 무치악, 단일치 수복에 까지 다양하게 사용되고 있다. 특히 심미성과 인접치의 손상을 가하지 않는다는 면에서 단일치 수복에서 골유착 임플랜트 치료에 관심이 모아지고 있다. 단일치 수복에 있어서 심미성이 중요한 문제로 대두되면서 이런 수복에 사용될 수 있는 다양한 계통의 임플랜트들이 개발되어 사용되고 있다. 이중 가장 기본적인 Branemark 계통의 CeraOne 지대주, 최근에 개발된 전부도재 지대주인 CerAdapt 전부주조 지대주인 UCLA 계통등은 높은 성공률을 보이며 많이 사용되고 있다. 임상가들에 의해 나사유지형 보철물이 착탈성이란 관점에서 선호되고 있다. 시멘트유지형 보철물에서는 나사공이 없는 온전한 교합면을 유지한다는 면과 교합력을 받는 면적에 있어서 더 넓은 면을 가진다는 점등 더 많은 장점을 가진다고 주장하는 사람도 있다. 임상가들의 기호에 의해 선택되어지는 나사 유지형과 시멘트 유지형에 있어서 교합력이 야기하는 하중하에서 각각의 응력 분포를 분석할 필요성이 요구되었다. 이 연구는 단일치 수복에 사용되는 CeraOne, CerAdapt UCLA 계통에서 각각의 나사 유지형과 시멘트유지형에서의 응력분포를 삼차원 유한요소법으로 분석하고 상부 구조물에 가해지는 수직하중, 수평 하중, 경사 하중에 의해 야기되는 응력을 비교 분석한 것이다. 본 연구의 연구 결과는 다음과 같다. 1. CeraOne, CerAdapt, UCLA 지대주 모두 시멘트유지형보다 나사유지형에서 응력집중이 컸다. 2. CeraOne 시멘트유지형인 1번 모델에서 응력분산이 유리하였고, UCLA 나사 유지형인 6번 모델에서 가장 불리하였다. 3. 모든 모델에서 고정체 경부에서 가장 큰 응력 집중이 있었고 이것은 UCLA 지대주에서 가장 컸다. 4. 상부 구조물에서 주된 응력의 집중은 교합면에서 일어났다. 5. 골은 상부 피질골, 즉 고정체경부와 만나는 부위에서 가장 큰 응력의 집중이 일어났으며 수평, 경사 하중시 응력집중 양상은 힘을 가한 쪽의 반대쪽 고정체 경부에 응력이 집중되는 양상을 보였다. 6. 전체 모델과 골, 고정체 모두에서 수평 하중과 경사 하중시 보다는 수직 하중시 더 적은 응력값을 보였다.

• The Journal of the Korea Contents Association
• /
• v.11 no.2
• /
• pp.229-237
• /
• 2011

All over the world, the interest in technology and industrial value has been increasing rapidly due to the continuing commercial successes of three dimensional films. However, after the commercial success of , without exception, lots of three dimensional films had been produced thoughtlessly. Hereby, these films incurred a censure owing to bad degree of completion related to insufficient storytelling and directing. For three dimensional films, characteristic of producing should be considered perfectly in the planning stage unlike previous films. This study concentrates upon proper directing for three dimensional films, and analyzes the method of it, roughly divided into three parts ; the lapse of time, directing the screen which can highlight space sense, and the point of sight. Henceforth, The demand of three dimensional contents will increase all around the world, at such time, we also should take note of the change, and then produce excellent contents which can lead to have a chance to gain the supper hand in the market of three dimensional contents.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.15 no.3
• /
• pp.1576-1583
• /
• 2014

This study was to investigate the relationship between emotional intelligence and adjustment of college life as well as the effect of emotional intelligence on adjustment of college life in first year nursing college students. The participants were 104 first year nursing college students. Data was collected from June 11 to 13, 2012 and analyzed using descriptive statistics, pearson correlation coefficients and multiple regression. The mean scores for emotional intelligence 3.59 and adjustment of college life 3.01 were above average. A significant and positive correlation was found between emotional intelligence and adjustment of college life. The emotional intelligence predicted adjustment of college life. The strongest predictor on adjustment of college life was emotional recognition and next predictors were in order of empathy and emotional expression among the sub-factors of emotional intelligence. The results of this study suggest that it needs to develop the program for improving the emotional intelligence for better adjustment of college life in college nursing students.

• Journal of KIISE:Software and Applications
• /
• v.37 no.8
• /
• pp.611-619
• /
• 2010

This paper presents an efficient modeling system of virtual pottery in which the user can deform a body of virtual clay with a haptic tool for E-learning. We propose a Circular Sector Element Method (CSEM) which represents the virtual pottery with a set of circular sector elements based on the cylindrical symmetry of pottery. Efficient algorithms for collision detection and response, interactions between adjacent elements, and GPU-based visual-haptic synchronization are designed and implemented for the CSEM. Empirical evaluation showed that the modeling system is computationally efficient with finer details and provides convincing model deformation and force feedback. The developed system, if combined with educational contents, is expected to be used as an effective E-learning platform for elementary school students.

• Journal of Broadcast Engineering
• /
• v.17 no.1
• /
• pp.60-72
• /
• 2012

After the movie "AVATAR" became a good model of cash-cow in 3D movie, the profit of 3D-movie significantly reduced. One of the reasons why it happens comes from rare understanding of human factors for instance how viewers get immersed, but sometimes tired. Although 3D images should be more considered human visual system including eye, unfortunately most communication research ignored human factors. For those reasons this study observed the effect of 3D video on viewers' psychological response, especially for perceived eye movement, perceived characteristics, visual fatigue, and presence. With 90 participants, the results show that viewers' perceived feature effects on their presence. In detail, first, materiality and tangibility are more important factors than clarity in 3D video, and it means that when making 3D content or devices, materiality and tangibility should be considers that any other factor. Second, this study examined whether we perceive our eyes as media, and the result shows that as viewers' presence level became higher we perceive eye movements more, and as viewers' presence level became higher perceived visual fatigue became lower. This result means that when we move eyes, we interact with surrounded environment, so 3D content needs to provide vivid features to be more interactive. On the other hand, since level of presence increase visual fatigue, it must be balanced when producing and playing.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
• /
• v.9 no.5
• /
• pp.13-20
• /
• 2014

This study drew a conclusion about the current situation and the trend of start-up in Korea by understanding the convenience of start-up and startup outcome(business satisfaction and income after startup) by year, and by analyzing the trend of the convenience of start-up by each detail items and by industry. In addition to, the key factors of successful business start-up are demonstrated by synthetically examining how the factors influence the outcome of startup, including human capital, business characteristics, economic feature, and situational/institutional characteristics, as well as demographic characteristics. According to the result, business satisfaction after startup by year and business income have gradually increased from 2005, but the convenience of start-up has constantly decreased. Based on the industry, the convenience of start-up shows a statistical significance. Lastly, the factors that influence the outcome of business start-up are complexly turned up as human capital, business characteristics, economic feature, and situational/institutional characteristics, as well as demographic characteristics.

• The Journal of Society for e-Business Studies
• /
• v.9 no.3
• /
• pp.1-16
• /
• 2004

The purpose of this study is to explore the nature of supply chain partnership, and to find the factors influencing the supply chain partnership success. For this, relationship commitment and trust were used as the basic components of the supply chain partnership. Also we identified strategic fit, interdependence, compatibility, and communication as determinants of supply chain partnership. Based on the statistical analysis of the sample of Korean corporations, it was found that relationship commitment and trust were shown to be significant factors influencing the supply chain partnership success. In addition, the findings reveal that strategic fit, interdependence, compatibility, and communication will facilitate supply chain partnership. More specifically, strategic fit and interdependence have a significant positive influence on relationship commitment. Also, compatibility and communication have a significant positive influence on trust. There result, in short, supported the importance of supply chain partnership for the successful SCM.

• Journal of Korean Society of Forest Science
• /
• v.101 no.4
• /
• pp.606-612
• /
• 2012

We developed four qualitative criteria for evaluating Indonesia's REDD+ strategy by analysing REDD+ related decisions from the Cancun agreements adopted by the 16th Conference of the Parties under the United Nations Framework Convention on Climate Change (UNFCCC), and the important elements developed by Norway's International Climate and Forest Initiative to evaluate Indonesia's REDD+ strategy: (1) Criterion 1 is assessing how accurately the developed strategy identifies substantial underlying and direct causes of deforestation and forest degradation; (2) Criterion 2 is whether the strategy establishes a scientifically reliable national-level MRV (Measurement, Reporting and Verification) system; (3) Criterion 3 is whether the strategy achieves real greenhouse gas emissions reductions; and (4) Criterion 4 is whether the strategy includes safeguards to ensure equity and co-benefits from REDD+ related projects for relevant stakeholders, in particular local communities and indigenous peoples. Criteria 1 and 2 can be the fundamental bases of real GHG emissions reduction (Criteria 3). Criteria 3 is recognised as the ultimate objective of REDD+. Criterion 4 is for both bases of the effective GHG emission reduction and complementary objective of REDD+. These criteria and indicators developed can provide basic framework to understand their REDD+ national strategies of the other developing countries as well as Indonesia.

• Cartoon and Animation Studies
• /
• s.28
• /
• pp.101-124
• /
• 2012

Success of brought a large revolution in the world of cinema and the media market. They have predicted new industrial possibility for 3D Stereoscopic image and trends started to support for producing in the field of various media platform. We can see our domestic technology creates higher added value in the sphere of hard-wear for the market of worldwide home TV electronics. But in reality we are short of effective and organized pipeline of producing and we should analyse cases more for Stereoscopic 3D animations. Therefore in this paper, we present case study on animation made into Stereoscopic 3D animation to build up suitable Stereoscopic 3D TV animations pipeline. We differentiate from any other Stereoscopic content by applying artistic elements and technological elements, especially human factor and 3D Sweetening to elevate the level of 3D Stereoscopic effect for main audience, children. We propose how to strengthen the competitiveness of Korean animation for world animation market.

• Information and Communications Magazine
• /
• v.21 no.7
• /
• pp.156-167
• /
• 2004

이동통신은 아날로그 음성을 전달하는1세대의 아날로그 이동 전화로부터 시작하여 2세대의 디지털 이동통신에서는 디지털 음성 전화 및 단문서비스를 제공하였으며, 3세대 이동통신시스템인 IMT-2000(International Mobile Telecommunications-2000)으로는 동기 방식 cdma2000과 비동기 방식의 W-CDMA에서는 2Mbps급 이상의 데이터 서비스를 제공한다. 현재 서비스 중이거나 계획 중인 WCDMA, cdma2000 1x,cdma2000 1x EVDO와 EVDV는 이동 멀티미디어 서비스의 제공을 목표로 설계되었으나, 현재 이들 3세대 시스템은 2세대 시스템에 비하여 기술적으로 진보된 개념들을 도입하였음에도 불구하고, 서비스 제공 관점에서 2세대 시스템과의 차별화에 성공적으로 대처하지 못하고 있고, 2세대 시스템이 이동전화 서비스를 제공하는데 있어 용량 부족의 문제가 없으므로 사업자들이 신규 투자에 매우 소극적인 상황이다.(중략)