• Proceedings of the Korea Water Resources Association Conference
• /
• 2017.05a
• /
• pp.256-256
• /
• 2017

최근 기후변화가 가속화되면서 집중호우가 급증하고 계획홍수량을 초과하는 홍수재해가 빈번하게 발생하고 있다. 이에 주요 선진국들은 홍수대응을 위한 새로운 패러다임을 도입하고 있다. 구조적 측면에서는 기존 제방 위주의 홍수방어에서 벗어나 유역에서 홍수 방어구획 설정, 대심도 터널 등 다원적 홍수방어체계로 전환하고 있다. 또한 ICT를 활용하여 다양한 수문정보를 실시간으로 관측하고 홍수상황을 신속하게 전파 대응할 수 있는 비구조적 대책도 적극적으로 개발하고 있다. 미국의 경우, 홍수량과 발생 확률을 예측한 정보를 시민들에게 조기에 제공함으로써 선제적으로 대응할 수 있도록 지원하고 있다. 그러나 우리나라의 홍수대응은 여전히 구조적 대책과 사후복구에 집중되어 있는 안타까운 상황이다. 세계 최고수준인 우리나라의 ICT 인프라를 이용하여 실시간 수문자료를 공유하고 이를 홍수대응에 활용하면 재난을 미연에 방지하는데 크게 기여할 수 있을 것으로 판단된다. 그러나 홍수관련 유관기관 자료를 연계한 실시간 수문상황 모니터링 시스템을 구축하는 것만으로는 지자체 홍수피해 저감에 한계가 있을 수 있다. 이를 보완하기 위해 수집된 실시간 수문정보를 활용한 홍수분석 및 하천수위별 대응기준 수립을 통한 예방적 재난대응 체계를 마련해야 한다. 이에 본 연구에서는 A지자체를 대상으로 홍수분석 모형을 구축하고, 구축된 모형의 계산결과를 활용하여 예상강우별 도달시간, 수위상승 등을 예측하고, 하천수위별 대응기준을 수립하는 연구를 진행하였다. 수위별 대응기준은 현장에서 계측되는 수위값을 기준으로 홍수예보기준, 하천기본계획의 제방고 및 주변 제약 사항을 고려하여 직접알람 기준으로 활용하였다. 또한 대상 수위국에 대하여는 2~3년간의 관측자료 확보 및 유량측정을 통해 대응기준의 보완을 진행할 예정이다. 재난관련 골든타임을 확보하고 홍수피해 최소화를 위한 홍수재해 통합관리 체계 구축은 이제 선택이 아닌 필수라 할 수 있다. 특히 본 연구로 산정된 홍수대응기준과 함께 물관리 유관기관의 실시간 수문자료 공유체계 구축, 홍수통제기관 또는 기술력을 보유한 재해대책 책임기관과의 유기적인 기술교류 등을 통해 지자체 홍수피해 저감을 위한 능동적인 홍수대응 체계 구축이 수행되어야 할 것이다.

• The Journal of the Korea Contents Association
• /
• v.12 no.12
• /
• pp.146-155
• /
• 2012

This study made an attempt to apply and meaningful research of the analysis of the scene with the actual creative work about the contradictory structure and the love of duality appeared in the Shakespeare's "Romeo and Juliet". The researcher set up the meaning of versus (對) between the contradictory structure and the duality of love. So I analyzed the duality of love appeared on the creative performance named "Romiet & Julio zwei Versus". With the Laban's behavior analysis, the analyzing instruments were separated into four parts as the body, the effort, the space and the shape. As a result of the analyzing, the duality of love in the original work was the expression of the artist's pluralistic vision, and dramatic structure of homogeneity rather than the paradoxical contrast. After analyzing a creative work, the duality of love has been proven as an important factor with ultimately a new dimension of absolute balance.

• Proceedings of the Korea Contents Association Conference
• /
• 2009.05a
• /
• pp.215-220
• /
• 2009

MMORPG is being progressed through Quest and the level and the balance are realized. Also, Quest plays a strong role of motivation through compensation related with Avatar such as items and experience points rather than a role of story transfer. This situation finally made MMORPG become a difficult game that players should study the compensation of Quest for growth of a character, so it causes fixation of the user class. As a solving method of the fixation of the users, the possibility of Quest capable of strengthening play motive of various users through clarification of motivation structure of the Quest play and pluralistic understanding about players was investigated. The pluralistic understanding method of players will have values as a tool that can design and evaluate Quest satisfying preference of the various user class.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.15 no.4
• /
• pp.341-352
• /
• 1990

In this paper, we introduce tree types of switching networks, I, e., a fully segregated type, a partially integrated type, and a fully integrated type switch, to accommodate nx 64Kb/s multi-slot connection traffic and analyze their blocking probabilites for the different traffic mixes by utilizing a computational algorithm of blocking probability, and finally determine the traffic handling capacity which satisfies the given grade of service. The fully integrated type switch can accommodate the ISDN traffic with relatively low wideband traffic. However, either the partially integrated type or the fully segregated type switch is needed to accommodate the ISDN traffic as the wideband traffic increases. This result can be usilized in the design of ISDN switching networks accommodating multi-slot connection traffic.

• Prospectives of Industrial Chemistry
• /
• v.24 no.3
• /
• pp.1-13
• /
• 2021

유리 소재는 뛰어난 기계적, 화학적, 광학 특성으로 인해 다양한 영역에서 광범위하게 활용되어 왔으며, 최근에는 특정 물성이 강화된 기능성 유리 수요가 다양한 산업 영역에서 급속히 증가하고 있다. 유리 소재 분야에서의 연구 개발은 유리 특유의 비정질 구조 및 다원소 조성 특성에 의한 복합성 때문에 전통적으로 경험에 기반한 실험 기법에 의존하여 왔다. 그러나 적용 분야에 따른 맞춤형 물성 강화에 대한 필요성이 증대됨에 따라, 핵심 물성 발현 원리 등을 원자 단위에서 이해하고 이를 바탕으로 기능성 유리 소재를 설계하는 접근법이 주목받고 있다. 원자단위 시뮬레이션 및 이론 기반 모델링은 유리 소재의 다양한 물성과 조성 변화에 따른 원자 구조의 상관관계를 매우 효율적으로 분석할 수 있는 기법이다. 본 기고문 에서는 밀도범함수이론, 분자동역학 및 위상속박이론을 활용한 기능성 유리 소재 개발 및 연구 동향에 대해서 소개하고자 한다.

• Journal of the Korean Society of Costume
• /
• v.57 no.2 s.111
• /
• pp.190-201
• /
• 2007

The purpose of this study Is to reinterpret sexuality represented in modern fashion with the conception of plural sexuality from post-structuralism in socio-semiotic approach. It consists of two parts.: The first part provides the theoretical background and the methodological framework of this study. The second part ultimately accomplishes this study by empirical research, which is to infer plural sexuality articulated with fashion images in men's and women's popular fashion magazines in Korea since 2000 and sexual ideology signified in modern fashion. In this part the theoretical background was focused on the conception of sexuality on the basis of Foucault's idea, and then the framework for this study was made up from socio-semiotic perspective. The conception of sexuality in Foucauldian post-structural idea maintains the view of plural sexuality, which floats by power relationship between dominant and oppositional discourses in a specific historical context. Socio-semiotics suggests a contextual methodology to analyze the phenomena of material culture by articulating the range of material objects with that of ideology. The socio-semiotic model applied to sexuality represented in fashion is the framework of classifying into the several versions of fashion images from fashion as a material object and then inferring sexual ideology codified in them. In addition, three stages of producer/object/user in socio-semiotics were revised into 'dominant sexuality' with mainstream fashion out of dominant discourses,'oppositional sexuality' to create anti-fashion from oppositional discourses of subculture, and 'alternative sexuality' to be appropriated to dominant discourses by the mix of mainstream fashion and anti-fashion.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.10 no.7
• /
• pp.1118-1130
• /
• 1999

In this paper, error performance of DS/FH CDMA system has been analyzed in a radio channel which is characterized by near-far problem and multi-path fading. The DS/FH CDMA system adopts Maximum Ratio Combining(MRC) diversity and BCH(Bose-Chau dhuri-Hocquenghem) coding techniques to enhance system performance. Using the derived error probability equation, the error performance of DS/FH CDMA system has been evaluated and shown in figures to discuss as a function of PN code length(N), hopping rate(q), number of diversity branch(M), coding rate($\gamma$) and bit energy per noise power ratio ${E_b/N_o}$. The results show that DS/FH system is more effective to restrain the affection of near-far problem and multi-path fading than DS system. And there is a substantial enhancement in performance by employing an MRC diversity or BCH coding techniques. Consequently, we expected that proposed system structure is reliable to the voice communication system in near-far problem and multi-path fading channel.

• Sleep Medicine and Psychophysiology
• /
• v.8 no.2
• /
• pp.113-120
• /
• 2001

Objectives: Obstructive sleep apnea syndrome is common and may produce various symptoms and serious complications. A substantial number of research articles on obstructive sleep apnea syndrome have been published in Korea. However, we found such limitations as lack of sufficient sample size and lack of polysomnography-proven cases. Therefore, we aimed at studying clinical features and sleep structure in a sufficient number of Korean patients with obstructive sleep apnea syndrome diagnostically confirmed with polysomnography. Methods: We studied 801 subjects referred to the Division of Sleep Studies, Seoul National University Hospital, who were diagnosed as having obstructive sleep apnea syndrome with polysomnography. Subjects were excluded if they had central sleep apnea syndrome, periodic limb movement disorder, narcolepsy or REM sleep behavior disorder. Foreign patients were also excluded. First of all, we studied the clinical features of the subjects. Secondly, we compared sleep-related parameters of the study subjects with those of age/sex-matched normal values. Thirdly, correlations of respiratory disturbance index (RDI) with each of the sleep-related parameters were calculated. Results: Among the 801 subjects, 668 were male subjects (83.4%) and 133 female subjects (16.4%). Their mean age was 46.6 years (${\pm}13.5$). The mean body mass index (BMI) was 25.8 (${\pm}3.8$) and subjects with BMI was over 28.0 accounted for 22.8% of the total. Fifty subjects (6.2%) were found to take benzodiazepines. Mean RDI and mean nocturnal oxygen saturation of all subjects was 31.2 (${\pm}24.4$) and 94.5% (${\pm}3.6$), respectively. In comparison with normal values, the subjects showed longer sleep latency, lower sleep efficiency, decreased total slow wave sleep % (TSWS %), and decreased total REM sleep % (TREM %)(p<0.01 in all). RDI had a negative correlation with each TSWS % and TREM % (p<0.01, p<0.01). However, RDI did not have significant correlation with either sleep latency or sleep efficiency. Conclusion: In this study, 6.2% of patients diagnosed as having obstructive sleep apnea syndrome were found to take benzodiazepines, although they are generally considered to be of litte benefit or even dangerous because of the respiratory suppressing effect. The proportion of obese subjects was only 22.8% and Korean patients with obstructive sleep apnea syndrome seem to be less obese than those described in foreign journals. This study also suggests that the severity of obstructive sleep apnea syndrome may have a more significant effect on sleep architecture defined as TSWS % and TREM % than on sleep efficiency.

• Proceedings of the Korea Contents Association Conference
• /
• 2007.11a
• /
• pp.183-187
• /
• 2007

During the recent decades in democratic and industrialized countries, government policies for governing technological innovation and risks to environment and human health have undergone significant changes. The shift from a top-down legislative approach to a more inclusive and deliberative atmosphere is, putatively the most prominent change. Such a move is often described as a move from government to governance. In the governance of technology and risk, public engagement has been a major strategy in technology decision-making process. This article aims to look into the changes in the procedural modes of technology decision-making process. It discusses the main viewpoints that have been placed on the basis of such a move. Also, it further relates the changes in local decision-making process to science and technology decision-making at global level. It argues that the democratic and reflexive trends in local science and technology decision-making will be the basis upon which to shape and respond to global governance system: while international decision-making process would require accountability in integrating different values and rationalities, such accountability may be sustained and reinforced depending on the robustness of the local decisions and social choices.

• Archives of design research
• /
• v.11 no.2
• /
• pp.167-176
• /
• 1998

The modern contains many problems that cannot be solved by the reductionism based on western natual science. Up until now, it has been formed determinism over the basis of empiricism or rationalism, this can be called a mechanical view of the world. In the field of natural science since 20C, however, raised the standard of revolt in traditional determinism, plural theory headed up. Consequently, in the name of post modernity, western reason became to deconstruct, further, new theory came to need. This new paradigm also affected design, and was studied to overcome the limitation of modern design.