• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.1863-1864
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• 2008

한국전력거래소에서 운영중인 EMS(Energy Management System)와 MOS(Market Operation System) 설비는 각각 Alstom사와 ABB사에 의해 우리나라의 전력계통 특성에 맞게 제작되어 공급된 전력계통과 전력시장의 운영을 자동화한 시스템이다. EMS는 전력계통 감시와 효율적인 운영을 위해 전력계통을 모델링한 데이터를 활용하며, MOS는 실시간 급전계획 수립을 위한 기반자료로 전력계통을 모델링한 데이터를 사용하게 된다. 그러나, 대한민국 전력산업의 핵심인 두 시스템은 시스템 설계 방식 및 DB 구조가 상이하여 전력계통의 신.증설 및 변경 시 동일한 데이터를 양 시스템에 각각 따로 구축, 운영해야하는 실정이다. 이에 따라 DB작업을 위한 자료 준비부터 입력, 수정, 검증 등 모든 과정에 중복된 관리가 이루어지고 있다. 중복 관리는 양 시스템 간 DB의 주요 데이터 특성 및 명칭이 상이하여 일률적인 관리가 어렵고, 시스템별 특성 및 운영노하우가 없이는 인적실수에 의한 입력오류 개연성이 폭넓게 존재하는 등 현 상황에서 피할 수 없는 현실이었다. EMS와 MOS 시스템 중 최소한 개의 시스템을 전면 재구축하지 않으면 해결되지 않을 본 문제를 해소하기 위하여 전력거래소는 특정 시스템에 구축된 데이터를 변환알고리즘을 통해 나머지 하나의 시스템에 자동 구축할 수 있는 시스템을 개발하여 활용하고자 한다. 이것이 바로 EMS에 입력되어 정확성이 검증된 계통데이터를 추출하여 MOS의 데이터 형식으로 변환하고, 변환된 데이터를 MOS시스템에 자동으로 입력할 수 있는 MOS/EMS 데이터 자동변환시스템이다.

• Korean Journal of Construction Engineering and Management
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• v.5 no.3 s.19
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• pp.166-173
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• 2004

This research develops a preliminary system prototype of construction data warehouse of a construction industry application to provide the construction manager with electronic decision supporting information. Construction data warehouse technology is a contractor-focused concept that provides electronic information analyzed from the separately stored database by management dimension, management subject, and data warehouse technology modules. First the authors reviews the characteristics of data warehouse technology and reviewed the conceptually designed architecture of previous study, then propose the architecture of construction data warehouse system and real application alternatives of each technology module to confirm the construction adaptability of the data warehouse technology through a case study.

• Journal of Internet Computing and Services
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• v.15 no.4
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• pp.21-31
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• 2014

As the protein drug industry is growing, protein informations are indispensable for the protein drug development. NCBI and PDB in the U.S., the EMBL in Europe and the DDBJ in Japan are the representative centers for bio information and each center provides specific data for protein information. To obtain specific protein information, users are to be collect them from the service sites of each center and then combine or analyze for their purpose. To facilitate the accessibility to bio data, various R&D activities are running for development of diverse web services relevant to bio data in major data centers or small-scale projects. With the recognition of protein information as pivotal for the protein drug development, DrugBank in Canada, GDSC in the U.S. start to provide integrated informations between drugs and proteins. However, those service does not meet users' demands due to lack of diversity. In Korea, infra structures for bioinformatics are limited and the current services for protein drug information are providing only basic information of the drug including distribution data. This is a pilot study to construct a specialized service for protein drug information in Korean style breaking through the limitations of current services. This study proposed new fields for protein characterization information which had not been provided by current services and evaluated their effectiveness and usability by comparing them to the existing fields with expert survey. As a result, the newly proposed fields for protein characterization have been proven to be useful data fields for the service of protein drug information.

• Journal of the Korea Organic Resources Recycling Association
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• v.28 no.4
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• pp.43-52
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• 2020

As the membrane gas separation technology grows, various models were developed by numerous researchers to describe the separation process. In this work, the counter-current model was compared thoroughly with experimental data. Experimentally, hollow fiber membrane using CA module was prepared for the separation of biogas. The pure gas permeation properties of membrane module for methane, nitrogen, oxygen, and carbon dioxide were measured. The permeance of CO2 and CH4 were 25.82 GPU and 0.65 GPU, respectively. The high CO2/CH4 selectivity of 39.7 was obtained. the separation test for three different simulated mixed gases were carried out after pure gas test, and the gas concentration of the permeate at various stage-cut were measured from CA membrane module. Results showed that the experimental data agreed with the numerical simulation. A mathematical model has implemented in this study for the separation of biogas using a membrane module. The finite difference method (FDM) is applied to calculate the membrane biogas separation behaviors. Futhermore, the counter-current model can be considered as a convenient model for biogas separation process.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.4
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• pp.893-900
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• 2010

One of the most interests is currently a field related with serious game. Also, the scale of serious game industry is rapid quantitative growth every year. For effective management of metadata of serious game is an important issue so that we propose design of integrated management system for effective management of metadata of serious game. The system provide a service based on internet. Users(general users, developers, experts and managers of metadata) of serious game who can carry out effectively works using proposed system such as new metadata information input, existing metadata information search, generated document files(HTML, XML, EXCEL, MS-WORD) as search results saving into their owns local computer system and so on.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.27 no.1C
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• pp.59-68
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• 2002

In this paper we issue some problems occurring when a mobile host moves from a base station to another in a wireless multicasting and propose a solution. In the case of not being in the same multicast group, the old base station will pre-forward data to neighboring base stations to avoid transmission delay. However, if other mobile hosts move at short interval, the old base station may retransmit the same dta to the same neighboring base stations. Also, the old base station should retransmit data if the new base station has already discarded data even if the new base station is a member of the multicast group. In this paper we propose called Information Exchange Scheme (IES). In this scheme, each base station exchanges indirectly the data delivery information with the rest of the base stations in the same multicast group for efficient and reliable multicast and pre-forwards data not retransmitting the same data for minimizing transmission delay when a mobile host moves. We also present how IES is efficient by analyzing and simulating.

• Journal of Bio-Environment Control
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• v.30 no.1
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• pp.19-26
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• 2021

In this study, analysis was performed to identify three greenhouses located in the same area using principal component analysis (PCA) and linear discrimination analysis (LDA). The environmental data in the greenhouse were from 3 farms in the same area, and the values collected at 1 hour intervals for a total of 4 weeks from April 1 to April 28 were used. Before analyzing the data, it was pre-processed to normalize the data, and the analysis was performed by dividing it into 80% of the training data and 20% of the test data. As a result of PCA and LDA analysis, it was found that PCA classification accuracy was 57.51% and LDA classification was 67.06%, indicating that it can be classified by greenhouse. Based on the farmhouse data classified in advance, the data of the new environment can be classified into specific groups to determine the tendency of the data. Such data is judged to be a way to increase the utilization of data by facilitating identification.

• Journal of Food Hygiene and Safety
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• v.35 no.6
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• pp.607-617
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• 2020

Human bio-monitoring (HBM) data is a very important resource for tracking total exposure and concentrations of a parent chemical or its metabolites in human biomarkers. However, until now, it was difficult to execute the integration of different types of HBM data due to incompatibility problems caused by gaps in study design, chemical description and coding system between different sources in Korea. In this study, we presented a standardized code system and HBM knowledge model (KM) based on relational database modeling methodology. For this purpose, we used 11 raw datasets collected from the Ministry of Food and Drug Safety (MFDS) between 2006 and 2018. We then constructed the HBM database (DB) using a total of 205,491 concentration-related data points for 18,870 participants and 86 chemicals. In addition, we developed a summary report-type statistical analysis program to verify the inputted HBM datasets. This study will contribute to promoting the sustainable creation and versatile utilization of big-data for HBM results at the MFDS.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10b
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• pp.518-520
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• 1999

모션 캡쳐 결과 데이터와 연속 이미지로부터 구현하고자 하는 가장 큰 목적은 바로 이미 적용된 데이터가 있다면 그 데이터를 다른 모든 신체 동작에 적용하는 것이다. 본 연구는 신체 동작을 응용하여 추적된 자료를 토대로 인간의 자연스러운 움직임을 구현할 수 있도록 인체 동작의 움직임에 대한 데이터 제어 방법과 영상분석을 통하여 그에 대응하는 다른 동작을 생성할 수 있는 재사용 방법과 시스템을 개발하는 것이 목적이다. 이와 같은 시스템을 달성하기 위해 신체 동작의 제어를 위해서는 외국의 선행 연구를 도입하여, 신체 동작의 움직임에 대한 제스춰 성분 요소와 그것의 조합을 표상할 수 있는 제스춰를 연결하는 모형들에 근거하여 입력 영사에서 얻은 제스춰를 다른 d사한 동작에 사용하기 위한 합성하는 기술의 개발이 필요하다. 향후의 이러한 연구를 통해 획득한 인체 동작에 관한 것을 데이터베이스화하여 이것을 활용하고 또한 동작제어기술과 합성을 통하여 가상공간에서 사람의 동작행위를 대신할 수 있는 수준으로 확장할 수 있다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2010.10a
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• pp.10-12
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• 2010

환경 민감 지도는 해양 유출유 사고 시 효율적이고 신속한 방제 업무를 위한 유용한 정보이다. 그러나 해상교통 및 안전 분야 종사자는 전통적으로 해도 및 전자해도 사용에 익숙하여 현 환경민감지도의 색상 및 심볼의 낮은 친숙도가 지적된 바 있다. 본 연구에서는 전자해도의 제작 표준에 해당하는 수로데이터 표준모델에 따라 환경민감지도 데이터를 제작하고 전자해도 표현방법에 따라 표시 하였다. 세부 연구 내용으로 환경민감정보에 대한 객체와 속성, 표현 심볼 및 색상에 대해 정의하고, 기존 환경민감정보를 내부 전자해도 포맷으로 변환하였다. 다음으로 내부 전자해도 데이터를 전자해도 표현방법에 따라 전자해도 레이어에 중첩시켜 그 결과를 확인 하였다.