• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.5
• /
• pp.28-38
• /
• 2020

Semiconductor deposition equipment is an important example of Complex Products and Systems (CoPS) and requires in-depth understanding of user requirements. For this reason, we analyzed and compared users' and producers' perspectives on the quality attributes of semiconductor deposition equipment using the Kano model. The results show that the patterns of users' perspectives were different from those of producers. Out of 22 level-2 quality attributes, producers evaluated all 22 attributes as attractive qualities, but users evaluated only 6 as "attractive," 10 as "indifferent," 2 as "must have," and 4 as "other." Although all quality attributes were attractive for producers, only those related to reliability were attractive or must-have qualities, and all others were "indifferent." This result implies that the perspectives on quality attributes may be different between users and producers, and producers should revise their perspectives and strategies. In addition, the results support the characteristics of CoPS suggested by literature implying that performance is more important than economies of scale and cost reduction. It is suggested that producers of semiconductor deposition equipment strategize their approaches to users by considering the characteristics of CoPS.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.24 no.1
• /
• pp.101-111
• /
• 2018

The Korean government has been trying to conserve a marine ecosystem that has been shifting due to climate change. As part of this effort, the government designated seventy-seven marine species that have been disappearing and deserve to be protected as endangered managing them specially. To generate basic data to guide policy for these endangered species, their value must be measured. OOf the species declared endangered, coral is particularly threatened by climate change, and its management is important. Accordingly, understanding the potential value of reefs, can be an effective way of proving the benefits of continuous management to decision makers and the general public alike. To this end, we have applied the contingent valuation method (CVM), an economic technique of for valuing a environmental and non-market goods such as a coral reef. A national face-to-face survey of 1,000 randomly selected households was conducted in order to determine the public's willingness to pay (WTP) for conserving coral reefs. A one-and-one-half-bound (OOHB) model was adopted to interpret WTP responses, and a spike model was employed to deal with zero WTP responses. The results show that the conservation value of a coral reef can be estimated at 3,016 won per household per year, statistically significant at the 1 % level. Expanding values to the national population gives an annual value of 58.9 billion won. We can conclude that the public is willing to pay a significant amount to conserve coral reefs.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
• /
• v.8 no.4
• /
• pp.279-291
• /
• 2010

To characterize geological features in study area for high-level radioactive waste disposal research, KAERI (Korea Atomic Energy Research Institute) has been performing the several geological investigations such as geophysical surveys and borehole drilling since 1997. Especially, the KURT (KAERI Underground Research Tunnel) constructed to understand the deep geological environments in 2006. Recently, the deep borehole of 500 m depths was drilled to confirm and validate the geological model at the left research module of the KURT. The objective of this research was to identify the geological structures around KURT using the data obtained from the deep borehole investigation. To achieve the purpose, several geological investigations such as geophysical and borehole fracture surveys were carried out simultaneously. As a result, 7 fracture zones were identified in deep borehole located in the KURT. As one of important parts of site characterization on KURT area, the results will be used to revise the geological model of the study area.

• The Korean Nurse
• /
• v.22 no.1 s.119
• /
• pp.47-64
• /
• 1983

간호원은 비록 그가 양호교사가 아니라고 하더라도 그가 처한 위치에서 거의 매일 건강교육을 실시하고 있다고 할 수 있다. 그러한 비정규직 교육은 상황에 따라 간호활동의 대상자들에게 수시로 별 준비 없이 실시한 경우도 있겠으나 효율적인 결과를 얻을 수 있는 체계적인 보건교육은 구체적인 학습목적과 교육과정이 교육적으로 미리 계획되어 있어야만 가능하다고 할 것이다. 양호교사의 기본적인 역할이 학교 구성원들의 건강증진과 질병예방에 있으며 효율적인 건강교육을 통하여 이러한 목적을 달성한다고 할 때, 양호교사는 자신을 그 학교공동체의 주된 건강교육자로 이해하고 학교에서 이루어지는 모든 보건교육 과정에 적극적인 참여를 하여야만 한다. 그러한 역할중의 하나는 보건에 관한 수업을 실시하는 학과목 교사나 담임교사들이 건강교육에 관련한 협의를 양호교사에게 요청하도록 적극적인 건강교육환경을 학교 내에 조성하여야 하는 일과 중요한 건강주제에 대하여서는 양호교사가 직접 수업을 교실에서 이끌어야 하는 것일 것이다. 이 논문에서 다룬 보건교육 교안 연구는 양호교사에게 또 건강에 관한 주제를 가지고 수업을 하는 일반교사에게 중학생의 건강교육 과정의 한 모델로써 사용하는데 도움이 될 것으로 본다. 건강교육 프로그램을 질병예방, 건강증진에 초점을 두어 설계한다고 할 때 건강교육의 주된 방향은 대상자 하나 하나의 생활에서 건강을 위한 바람직한 행위를 생활화하도록 하는 것이다. 이 목적을 학교에서 달성하기 위해서는 건강교육 프로그램을 통하여 학생들에게 건강에 대한 지식을 전달하고 그 지식 위에 건강을 위한 바람직한 행위를 하도록 동기를 부여하며 그러한 행위를 지속하도록 보강하는 것이 필요하다고 할 것이다. 사람들은 건강에 대한 지식이나 정보를 가지게 되면, 행위는, 그것에 상응하여 바람직하게 행할 것이라고 가정하기가 쉽다. 그리하여 건강에 대한 정보를 주는 것 건강교육을 했다고 간주하기도 한다. 그러나 실제적으로 건강을 위한 정보를 받고 지식을 가졌다 하더라도 바람직한 행위를 실천하지 않거나, 습관된 반건강 행위를 바꾸지 않는 경우가 많다. 그러므로 건강한 행위를 실천하기 위해서는 그에 대한 가치관이나 태도가 먼저 분명하게 세워져야 한다. 학생들의 경우에도 그 가치관이 확립되어야 하겠으므로 이를 위한 효과적인 교육방법이 제시된 교육안 모델이 있어야 할 것이다. 즉 건강문제에 대한 태도의 확립과 그에 따른 올바른 행위를 실천하도록 하기 위하여 구체적으로 치밀하게 계획된 건강교육 안이 연구되어 지는 것이 건강교육의 가장 중요한 과제중의 하나이다. 이 연구에서 제시하는 건강교육 프로그램에서는 많은 부분의 정보가 학생들 스스로에 의해서 수집되도록 하였다. 그렇게 함으로써 그들이 흡연에 관한 사실들을 스스로 명백하게 파악할 수 있었기 때문이다. 또한 소그룹 토의와 논쟁의 방법을 통해서 학생들이 흡연에 대해서 자신들의 생각하고 있는 것을 검토하여 올바른 판단을 하도록 하는 기회를 가질 수 있도록 하였다.

• Annual Conference of KIPS
• /
• 2002.11c
• /
• pp.2265-2268
• /
• 2002

인터넷 사용자들의 기하급수적인 증가와 웹 페이지의 폭발적인 증가로 인하여 정보공유를 위한 인터넷에서 효율적으로 원하는 정보를 발견하고 이용하기에 매우 힘든 상황에 처해있다. 따라서, 이러한 문제점들을 근본적으로 해결하기 위한 노력의 일환으로 기계가 이해하고 추론할 수 있는 시맨틱 웹이 등장하였다. 시맨틱 웹과 관련된 여러 가지 기술들 중 시맨틱 웹 서비스는 사용자에게 현재의 인터넷 환경에서 제공할 수 있는 서비스보다 향상된 고품질의 서비스를 제공하는 것을 목적으로 삼고 있다. 이러한 시맨틱 웹 서비스는 웹 서비스의 발견, 실행 및 구성으로 구성된다. 본 논문에서는 시맨틱 웹 서비스를 자동화하기 위한 노력의 일환으로서 시맨틱 웹에서 웹 서비스를 구성하는 문제에 대하여 언급한다. 시맨틱 웹 서비스 구성문제는 사용자의 요구사항을 충족시키기 위하여 다양한 웹 서비스들을 조합하는 문제이다. 그러나, WSFL, X-LANG 및 BPEL4WS 그리고, DAML-S와 같은 웹 서비스 구성문제에 대한 일련의 노력들에서는 사용자 요구사항에 대한 검증이나 서비스의 품질에 대한 사항들을 확인 및 제공할 수 있는 방법들이 없다. 따라서, 본 논문에서는 시맨틱 웹 서비스 구성문제와 관련된 상기와 같은 문제점들을 해결할 수 있는 방법론을 제시한다. 본 논문에서 제시된 방법론에서는 시맨틱 웹 구성문제를 제약만족문제로 변환함으로써 제약만족문제에 있어 늘리 알려진 다양한 알고리즘들을 활용할 수 있는 장점들이 있을 뿐만 아니라 사용자들의 요구사항에 대한 검증과 서비스의 품질을 확인할 수 있는 장점들이 있다.의 위상변화에 대한 적응성을 높일 수 있도록 한다. SQL Server 2000 그리고 LSF를 이용하였다. 그리고 구현 환경과 구성요소에 대한 수행 화면을 보였다.ool)을 사용하더라도 단순 다중 쓰레드 모델보다 더 많은 수의 클라이언트를 수용할 수 있는 장점이 있다. 이러한 결과를 바탕으로 본 연구팀에서 수행중인 MoIM-Messge서버의 네트워크 모듈로 다중 쓰레드 소켓폴링 모델을 적용하였다.n rate compared with conventional face recognition algorithms. 아니라 실내에서도 발생하고 있었다. 정량한 8개 화합물 각각과 총 휘발성 유기화합물의 스피어만 상관계수는 벤젠을 제외하고는 모두 유의하였다. 이중 톨루엔과 크실렌은 총 휘발성 유기화합물과 좋은 상관성 (톨루엔 0.76, 크실렌, 0.87)을 나타내었다. 이 연구는 톨루엔과 크실렌이 총 휘발성 유기화합물의 좋은 지표를 사용될 있고, 톨루엔, 에틸벤젠, 크실렌 등 많은 휘발성 유기화합물의 발생원은 실외뿐 아니라 실내에도 있음을 나타내고 있다.>10)의 $[^{18}F]F_2$를 얻었다. 결론: $^{18}O(p,n)^{18}F$ 핵반응을 이용하여 친전자성 방사성동위원소 $[^{18}F]F_2$를 생산하였다. 표적 챔버는 알루미늄으로 제작하였으며 본 연구에서 연구된 $[^{18}F]F_2$가스는 친핵성 치환반응으로 방사성동위원소를 도입하기 어려운 다양한 방사성의 약품개발에 유용하게 이용될 수 있을 것이다.었으나

• The korean journal of orthodontics
• /
• v.39 no.2
• /
• pp.83-94
• /
• 2009

Objective: The aim of this study was to investigate the 3-dimensional position of the center of resistance of the 4 maxillary anterior teeth, 6 maxillary anterior teeth, and the full maxillary dentition using 3-dimensional finite element analysis. Methods: Finite element models included the whole upper dentition, periodontal ligament, and alveolar bone. The crowns of the teeth in each group were fixed with buccal and lingual arch wires and lingual splint wires to minimize individual tooth movement and to evenly disperse the forces to the teeth. A force of 100 g or 200 g was applied to the wire beam extended from the incisal edge of the upper central incisor, and displacement of teeth was evaluated. The center of resistance was defined as the point where the applied force induced parallel movement. Results: The results of study showed that the center of resistance of the 4 maxillary anterior teeth group, the 6 maxillary anterior teeth group, and the full maxillary dentition group were at 13.5 mm apical and 12.0 mm posterior, 13.5 mm apical and 14.0 mm posterior, and 11.0 mm apical and 26.5 mm posterior to the incisal edge of the upper central incisor, respectively. Conclusions: It is thought that the results from this finite element models will improve the efficiency of orthodontic treatment.

• Journal of the Korea Concrete Institute
• /
• v.21 no.4
• /
• pp.489-499
• /
• 2009

It is quite difficult to predict the flexural strength of post-tensioned members with unbonded tendons (unbonded posttensioned members, UPT members) because of debonding behavior between concrete and prestressing tendons, which is different from that with bonded tendons. Despite many previous researches, our understanding on the flexural strength of UPT members is still insufficient, and thus, national codes use different methods to calculate the strength, which quite often give very different results. Therefore, this paper reviews various existing methods, and aims at proposing an improved rational strength model for UPT flexural members having better accuracy. Additionally, a database containing a large number of test data on UPT flexural members has been established and used for verification of the proposed flexural strength model. The analysis results show that the proposed method provides much better accuracy than many existing methods including the rigid-body model that utilizes the assumption of concentrated deformation and plastic hinge length, and that it also gives proper consideration on the effects of primary parameters such as reinforcement ratio, loading pattern, concrete strength, etc. Especially, the proposed method also well predicts the ultimate stress of unbonded tendons of over-reinforced members, which are often possible in construction fields, and high strength concrete members.

• Journal of Digital Convergence
• /
• v.18 no.5
• /
• pp.233-247
• /
• 2020

The video content platform, which is a social media, is used as a means of producing various contents with high immersion, ease of use, and low production conditions. However, existing social media-related studies were insufficient to examine differences in existing information attributes despite the differences in platform types. Therefore, this study intends to examine the relationship between existing media and social media information attributes. The research model was analyzed by surveying 213 video content users. As a result of the research model analysis, information playability, information timeliness, and information provider reliability had a significant effect on information usefulness. However, information vividness, information accuracy, information neutrality, and professionalism of information providers did not have a significant effect. Through this study, the difference between video content and existing media or social media was found, and it was found that a reliable information provider should provide pleasant content at the right time. In addition, through the understanding of the information processing process of video content, which is a key player in the growth of social media, we believe that it will be very helpful in producing quality content.

• Journal of Science and Technology Studies
• /
• v.1 no.1 s.1
• /
• pp.123-153
• /
• 2001

This article addresses the 2nd Korean consensus conference on cloning that was held by the Korean National commission for UNESCO in 1999. Though previous perspectives recognized the conference as a new citizen's participatory institution. they do not consider that it contains the ideal of deliberative democracy. This article notes that the citizens participated directly and handled the important social agenda through debate in the consensus conference. The consensus conference is another democratic form derived from preference aggregating democracy in the sense that it basically depends on public judgement of the citizens. This consensus conference has the historical meaning because it is in fact the first experiment of deliberative democracy in Korea. 1) We examine the theoretical foundations of consensus conference. They are social constructionism of science, the tradition of societal debate, and deliberative democracy. 2) We explore what deliberative democracy is. It is different from aggregating preference democracy in the sense that it depends on public judgement rather than private preferences. 3) We investigate the features and meaning of deliberative democracy which has experiment on the conference. In the Consensus Conference it was observed that citizens changed their preferences and went forward to developing their view of community as a result of the process of deliberation. It can be said to confirm the significance of deliberative democracy. However, it is simultaneously an opportunity to clarify some problems of deliberative democracy. First of all, it shows that there were hierarchies within the citizens' panel as well as between the citizens' and the specialists' panels. Secondly, there are difficulties in expressing the value of life in argument or discourse. Also, we need the institutional efforts concerning future generations and nonhuman beings in the respect that cloning relates to them.

• Journal of Distribution Science
• /
• v.7 no.2
• /
• pp.29-44
• /
• 2009

The aim of this study was to theoretically examine the current status of TV home shopping business entities' expansion of business structure, and then look into TV home shopping business entities' preparation for the future business in their mature period. For this, the investigator examined literature home and abroad and then empirically carried out an experimental sale of household goods by selecting a model TV home shopping business entity. In order to understand current business structure of TV home shopping and increase sales, the investigator has changed price and then induced sales, focusing on the price of household goods. Study findings are as follows: As for the influence of TV home shopping household goods' price upon its sales, because TV home shopping business entities set in advance an efficiency unit-price per broadcast hour and carry out a sales strategy of reaching out the efficiency, they try to keep their sales with discounted price in the real sales setting of TV home shopping. But it is not an exclusive practice. General promotion became a common practice. The price of goods is the same with its life. Continuous discount events lower the reliability of goods and its supplier must bear the result. Overall sales after experiment increases by 13% and the sales efficiency also increases by 9%. Sales amount increases by 9% and a stable sales which is above average is achieved. The number of sales goods keeps 100%.