• Proceedings of the Korea Water Resources Association Conference
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• 2008.05a
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• pp.400-404
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• 2008

댐 군 연계운영을 위한 기존의 많은 최적화 모형은 경제성에 기반을 둔 단일 목적 함수를 가정함으로써 현실과는 동떨어진 결과를 도출하곤 하였다. 따라서 보다 현실적인 최적화 모형이 되기 위해서는 실제 운영과정을 모사할 수 있도록 적절한 초기 가중치를 부여하여 모형을 구축하고, 상충되는 목적간의 절충안으로 파레토 프런티어(Pareto-frontier)를 제시할 수 있는 다중목적 의사결정 기법이 요구된다. 본 연구의 목적은 댐 군 연계 운영을 위한 최적화 모형으로 소개된 CoMOM(Coordinated Multi-reservoir Operating Model)의 다중목적함수에 적합한 초기 가중치를 도출할 수 있는 시스템을 제안하는 것이다. 본 연구에서는 최적화 모형에 적합한 가중치를 결정함에 있어 댐의 초기저수량과 미래의 예상 유입량과 같은 수문 조건을 감안할 필요가 있음에 주목하였다. 이것은 초기저수량과 미래에 예상되는 유입량이 작을 경우 가급적 저수에 중점을 두고, 그 반대일 경우는 발전방류에 주안점을 두는 것이 바람직하다는 사실에서 추정해 볼 수 있는 가정이다. 따라서 댐의 초기 저수량 조건과 유입량 시나리오의 다양한 수문 조건별로 가장 적합한 가중치를 찾아본 후, 수문 조건을 입력요소로, 최적 가중치를 출력요소로 갖는 신경망 모형을 활용해서 수문 조건에 적합한 가중치를 예측할 수 있는 절차를 제안한다. 이 과정에서 최적 가중치를 도출하는 것이 관건이 될 수 있는데, 이를 위해 전승목 (2008)등이 제안한 DEA기반 순위결정 절차를 활용해서 최선의 파레토 최적해와 이에 대응되는 가중치를 찾아 이를 신경망 모형의 출력요소 값으로 활용하였다. 본 연구에서 제안하는 신경망 모형은 임의의 수문 상황에 대해 이에 적합한 CoMOM의 초기 가중치를 결정해 줌으로써 CoMOM과 같은 최적화 모형의 가중치 선정에 따르는 어려움을 극복하는 데 도움이 될 수 있을 것으로 기대된다.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.10 no.3
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• pp.359-367
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• 1999

The analysis of a surface wave antenna with the corrugated ground plane fed by a parallel-plate waveguide is considered. An equivalent theorem Is employed to subdivide the original problem into three regions for the simple analysis : one concerning the geometry inside the shorted parallel-plate(Internal region 1), one concerning the geometry of the corrugation(Internal region 2), and one concerning the geometry of the conducting wedge(External region). The hybrid method of moment(MOM)/uniform geometrical theory of diffraction(UTD) method is applied to analyze a corrugated surface wave antenna with the end-fire radiation. Our numerical results are very well matched with those of the previous experiment, better results are obtained when compared with those of the previous simple equivalent current approach. Also, we can obtain the parameters to design an effective end-fire corrugated surface wave antenna.

• Journal of Pharmacopuncture
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• v.26 no.1
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• pp.99-104
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• 2023

Our study purpose was to report the clinical application of five different pharmacopunctures (Sweet BV, Scolopendrae Corpus, Chukyu, Cervi Parvum Cornu, and Hominis Placenta) for trigger finger. A patient was admitted to Ba-reun-mom S Korean Medicine Clinic and diagnosed with trigger finger. Because the effects of each pharmacopuncture have been confirmed in various acute to chronic cases, we treated a patient diagnosed with trigger finger using pharmacopunctures Sweet BV and Scolopendrae Corpus at the acute phase, Chukyu pharmacopuncture at the acute to chronic phase, and pharmacopunctures Cervi Parvum Cornu and Hominis Placenta at the chronic phase. This case was measured and assessed by Quinnell's classification of triggering and visual analogue scale (VAS) scores. After treatment, the patient's fifth finger pain and function were improved. The VAS score decreased from 5 to 0. The Quinnell's classification of triggering score decreased from 2 to 0. This case indicated that a patient with trigger finger could be treated by five pharmacopuncture treatments according to the treatment regimen and disease progress.

• Journal of Internet Computing and Services
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• v.24 no.4
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• pp.137-144
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• 2023

The purpose of this study is to examine consumers' perceptions of domestic infertility support policies based on infertility-related keywords and the trends of their changes. To this end, Momsholic, a mom cafe which has the most active infertility-related bulletin boards on Naver, was selected as the analysis target, and 'infertility' was selected as a keyword for data search. The data was collected for three months. In addition, network analysis and visualization were performed using R for data collection and analysis, and cross-validation was attempted using the NetDraw function of 'textom 1.0' and the UCINET6 program. As a result of the analysis, the main keywords were cost, artificial insemination, in vitro fertilization, freezing, harvest, ovulation, and how much. Next, looking at the central value of the degree of connection, it was found that the degree of connection between the words cost, cost, how much, problem, public health center, and artificial insemination was high. According to the results of this study, women who visit mom cafes due to infertility in Korea are more interested in the cost. It is believed to be closely related to infertility treatment as well as in vitro fertilization and egg freezing. Therefore, by examining keywords related toinfertility, it has academic significance in that it is possible to identify major factors that end users are interested in. Furthermore, it is possible to redefine the guidelines for domestic infertility support policies by presenting infertility support policies that reflect the factors of interest of end consumers.

• The Journal of Society for e-Business Studies
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• v.13 no.3
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• pp.1-20
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• 2008

Today's computing environment which is getting distributed to communicate with various systems needs dynamic inter-connectivity of the systems. MOM(Message Oriented Middleware) is popularly used for transmitting XML messages among the distributed systems for the inter-connectivity. But, they do not support event-based message routing functionalities with XML transformation for processing effective message routing, which is essential to inter-connectivity, and there is no integrated platform to cope with these requirements. Although event-based message routing and XML transformation have been studied in a wide range of computer science areas, development of message routing systems is considered as a tough job due to the technological difficulties. In order to address these requirements, we proposed a novel system, named RMRS(Rule-based Message Routing System), which supports event-based message routing as well as XML message transformation. To make the proposed system easy to use, we also redesigned ECA(Event- Condition-Action) rule to fit in our system and developed a tool to map source XML structure into target XML structure.

• Korean Architects
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• s.586
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• pp.160-165
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• 2018

• Korean Architects
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• s.626
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• pp.108-111
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• 2021

• Korean Architects
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• s.658
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• pp.54-59
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• 2024

• International Journal of Precision Engineering and Manufacturing
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• v.1 no.1
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• pp.71-78
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• 2000

Current Western-dominated paradigms of technology are based on a reductionstic view, i.e., machines evolve to an intelligent but isolated object form by serially integrating precise subtechnology, humans and the environment through K rperlichkeit(corporeality or philosophy of Mom), is explored. Parallelism based on holism and embodiment, and relative interactions based on correspondence and interrelationships, are the key ideas in the proposed paradigm. An interactive system, called the Emotional intelligence Interface and Performance System(EIPS), is proposed and implemented to explore the proposed interactive technology paradigm. Also, recent collaborations by ASTA(Arts, Sciences & Technology in Asia), an interdisciplinary project team of artists and engineers, are introduced to demonstrate these explorations.

• Proceedings of the KIEE Conference
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• 2006.11a
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• pp.108-110
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• 2006

계량기의 시장이 독점 시장에서 자유 시장으로 천이 되면서 시장은 계량기의 상호운용능력과 계량기의 지능, 관리능력 그리고 보안등의 부가적인 기능들을 요구 하게 되었다. 이러한 시장의 요구에 맞추어 DLMS 프로토콜을 표준으로 하고 COSEM 오브젝트 모델링 기법을 사용하는 계량기 표준인 IEC 62056이 제정되었다. 본 논문에서는 IEC 62056에서 정의한 프로토콜 및 서비스에 적합한 DLMS/COSEM 계량기의 S/W 아키텍처 및 그 설계 방법을 제안한다. 계량기 S/W는 크게 MCS와 MOM으로 구성되며, MCS는 계량기의 모델링 스크립트로 COSEM 오브젝트와 계량기의 구체적인 기능을 명시하고, MOM은 MCS를 읽어 계량기를 구동 시키는 모듈로 MCS에서 선언된 기능 및 동작을 해석하여 계량기를 전기, 가스, 수도 등의 기능을 갖는 계량기로 동작시키는 역할을 한다.