• Journal of the Korea Institute of Information Security & Cryptology
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• v.27 no.3
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• pp.489-499
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• 2017

MS office is a office software which is widely used in the world. The OOXML format has been applied to the document structure from MS office 2007 to the newest version. In this regard, the method of data concealing, which is a representative anti-forensic act has been researched and developed, so the method of detecting concealed data is very important to the digital forensic investigation. In this paper, we present an improved data concealing method bypassing the previewers detecting methods for OOXML formatted MS office documents. In addition, we show concealment of the internal data like sheets and slides for MS office 2013 Excel and PowerPoint, and suggest an improved detecting algorithm against this data concealing.

• Proceedings of the Korean Society of Medical Physics Conference
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• 2005.04a
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• pp.75-78
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• 2005

IMRT를 이용한 환자치료에서 환자의 특이적 품질관리에 대한 독립적인 선량계산을 위해 치료계획용 컴퓨터로 부터 계획된 다엽콜리메이터의 배열파일(MLC sequencing file)과 계획된 MU값 및 선량계산 위치에서의 각각의 조사필드 별 기여 치 등을 얻어낸 후 MS office Excel 2000 VBA를 이용하여 간단한 분석을 통하여 MU값을 계산한 결과 계획선량과 계산선량이 ${\pm}$4% 의 선량 오차를 얻을 수 있었다.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.802-806
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• 2009

If I was proposed, and it combines with a module regarding modular an integrated communication existing communications of a system, supply of a product is possible, and a level more excellent quality of leading foreign company products such as MS, ADOBE, becomes expectation in performance of a product and quality so that securities and import substitution are effective against price competitive power to excel you in it to products developed by technology domestic purity

• Journal of The Korean Association of Information Education
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• v.14 no.4
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• pp.651-658
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• 2010

This paper is to study adequacy of developing tutorial series for primary school students regarding MOS certification and to analyze a validity. In order to analyze a level of difficulty, current primary teaching materials being used after class, in comparison with ICT discretionary hour materials being used through primary discretionary class, were evaluated. It was done by primary teachers with in- depth understanding of a level of difficulty and after class instructors using Likert scale through quantitative analysis. As a result, level of PowerPoint has a satisfactory fit (76%), however, the degree of difficulty of Word and Excel is quite high. On its subject matter, there is quite a dispute with present curriculum. Therefore, in order to introduce MS-Word or Excel, it is necessary to adjust a level of difficulty or related subjects according to the level of students.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.5
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• pp.251-257
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• 2018

We will be establish the new k stores of identical product firm $F_B$ to gain competitive advantage over rival firm $F_A$ that has already monopolize a market with k stores. In this situation, how we can decide the location of k stores? For this problem, Serra and Revelle proposes k-Median and MAXCAP integer programming using LP+BB to decide the k stores of firm $F_B$. Then they exchange the k stores to another location that cover more customers. This paper suggests non-neighborhood search method that finds the ${\upsilon}{\not\in}N_G(u)$nodes for u of firm $F_A$ without most outer loop nodes using just MS-Excel. As a result of experiment, the proposed algorithm can be get the optimal solution easier and faster than integer programming.

• The Journal of Korean Medicine
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• v.32 no.1
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• pp.56-66
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• 2011

Background: This was a study to analyze Sanghanron through network theory, as the first attempt to construct network models for systems biomedicine in traditional Korean medicine. For this purpose, we investigated the network structure with priority given to two-node connections between symptoms and herbs of Taeyangbyung compilation in Sanghanron. Purpose: We had three goals in carrying out this study. First, to establish the minimum clinical grouping data sets for symptoms and herbs of Taeyangbyung compilation in Sanghanron. Second, to make index files for the obtained data sets. Third, to generate a network structure for systems biomedicine in this part, and analyze its relationship. Methods: Using MS office Excel and Netminer software, we constructed the minimum clinical grouping data sets and the network for systems biomedicine about symptoms and herbs of Taeyangbyung compilation in Sanghanron, and analyzed its relationship. Results: We established the minimum clinical grouping data sets for symptoms and herbs of Taeyangbyung compilation in Sanghanron, using MS Excel. We constructed a network to structurize our database through two-node connections of Netminer program, and analyzed its relationships. Conclusions: Further research on network model for systems biomedicine between symptoms and herbs for three Yang and three Um(Taeyang, Soyang, Yangmyung, Taeum, Soum, Gualum) disease compilation is necessary.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.14 no.1
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• pp.57-69
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• 2010

Background: This is a study for building up the database foundation and about graphic structures of Ontology Network systems of Taeyangbyung compilation in Sanghannon in Traditonal Korean Medicine. Therefore, we began to this study about the systematic clinical ontology network systems with priority given to symptoms of Taeyangbyung compilation in Sanghannon. Purpose: We have two goals to carry out this study. The first, we will establish the minimum clinical grouping data sets about symptoms of Taeyangbyung compilation in Sanghannon. The second, we will find out graphic structures of ontology network system in this part, and analysis that. Methods: Through MS office Excel, Access and Netminer software, we will construct the minimum clinical grouping data sets and the graphic structures of ontology network system about symptoms of Taeyangbyung compilation in Sanghannon, and analysis that. Results: We established the minimum clinical grouping data sets about symptoms of Taeyangbyung compilation in Sanghannon through MS Excel and Access software, and constructed the ontology images to structurize our database through Netminer program, and analysis that. Conclusions: Further research about ontology network between symptoms and prescription and three Yang and three Um(Taeyang, Soyang, Yangmyung, Taeum, Soum, Gualum) Disease compilation is necessary.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.6
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• pp.213-220
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• 2018

This paper deals with survival facility location problem(SFLP) that the store with less of demand threshold level is closed result from another new establishment of store in the same kind of comparative firms have a monopoly market. We will be faced with a difficult problem when a new establishment stores in market saturation that the closed stores more than opening stores. Serra et al. proposes recursive heuristic concentration algorithm, and Han et al. suggests maximum insurance of customer location. But the drawback of these algorithms is a recursively computation for many locations. This paper get the solution from only neighborhood search of comparative firm's stores that can be maximum customers and closed comparative firm's store, and the location with minimum customer exchange to the location that can be closed the comparative firm's store with maximum customer. The advantage of this algorithm is to get the solution using a MS-Excel.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.30 no.4B
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• pp.347-359
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• 2010

A simple web-based flood forecasting system using data from stage and rainfall monitoring stations was developed to solve the difficulty that real-time forecasting model could not get the reliabilities because of assumption of future rainfall duration and intensity. The regression model in this research could forecast future water level of maximum 2 hours after using data from stage and rainfall monitoring stations in Daejeon area. Real time stage and rainfall data were transformed from web-sites of Geum River Flood Control Office & Han River Flood Control Office based MS-Excel 2007. It showed stable forecasts by its maximum standard deviation of 5 cm, means of 1~4 cm and most of improved coefficient of determinations were over 0.95. It showed also more researches about the stationarity of watershed and time-series approach are necessary.

• Korean Management Science Review
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• v.24 no.2
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• pp.127-142
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• 2007

This study deals with the optimal design of mobile access network connecting base stations(BSs) and mobile switching centers(MSCs). Generally mobile operators constitute their access networks by leasing communication lines. Using the characteristic of leased line rate based on administration region, we build an optimization model for mobile access network design which has much smaller number of variables than the existing researches. And we develop a GUI based optimization tool integrating the well-known softwares such as MS EXCEL. MS VisualBasic, MS PowerPoint and Ip_solve, a freeware optimization software. Employing the current access network configuration of a Korean mobile carrier, this study using the optimization tool obtain an optimal solution for both single MSC access network and nation-wide access network. Each optimal access network achieves 7.45% and 9.49% save of lease rate, respectively. Considering the monthly charge and total amount of lease line rate, our optimization tool provides big amount of save in network operation cost. Besides the graphical representation of access networks makes the operator easily understand and compare current and optimal access networks.