• 한국측량학회지
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• 제30권3호
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• pp.287-294
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• 2012

가축전염병 중 하나인 구제역의 경우 정보의 초동 대응 미흡 등으로 전국적으로 확산되는 피해를 초래하였다. 이를 해결하기 위해 국가에서는 가축이력에 대한 체계적인 관리를 마련하기 위하여 데이터를 구축하였으며, 2002년도부터 추진되어 현재 웹 기반의 가축전염병 발생 통계 시스템(AIMS)이 운영하고 있다. 이는 사용자가 원하는 기간에 해당 축종의 형태에 따른 질병을 선택하면 지역별로 가축전염병 발생 통계 현황이 텍스트 기반으로 제공하고 있다. 하지만 이 같은 경우 시각적으로 공간적인 위치정보를 즉각적으로 파악할 수 없기 때문에 정보를 효과적으로 전달하기 어렵고, 의사결정을 내리고자 할 때 사용자가 원하는 정보를 다차원적으로 지원하지 못하는 한계가 있다. 이 연구에서는 오픈소스 기반의 SOLAP(Spatial On-Line Analytical Processing) 기술을 적용하여 여러 형태의 데이터를 다각적인 방법으로 분석하고, 최종적으로 나온 결과를 공간정보와 통합하여 지도상에 시각적으로 전달되도록 표현하였다.

• 디지털융복합연구
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• 제13권10호
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• pp.279-285
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• 2015

본 논문은 DNS를 이용한 보안 위협에 대응하기 위한 웹 기반의 실시간 질의 분석 및 제어 시스템을 제안한다. 제안 시스템은 DMZ로 유입되는 DNS 질의를 미러링하여 데이터를 수집하고 분석한다. 그 결과로 DNS 보안 위협을 발견하면 방화벽 필터링 정보로 사용하며 DNS 질의의 통계정보를 실시간으로 웹 서비스한다. DNS특정 문제만을 해결하기 위한 기존의 시스템에 비해 제안 시스템은 DNS 스푸핑, DNS 플러딩 공격, DNS 증폭 공격 등 다양한 공격에 대응하며, 불법적인 DNS의 사용을 미리 차단함으로써 내부로부터 발생할 수 있는 불법적인 침해 사고를 예방한다. 웹으로 실시간 DNS 통계 정보를 제공하고 GeoIP를 이용한 위치정보와 Google API의 지도를 이용하여 DNS 질의 발생과 관련하여 위치 정보를 제공한다. 현재까지의 DNS 공격에 대한 경험과 지식이 부족하기 때문에 웹 서비스와의 보안 융합 시스템을 이용하여 구축한 데이터베이스는 DNS 관련 보안 침해 공격에 대한 연구에 있어 향후 중요한 자료로 사용될 수 있다.

• 한국CDE학회논문집
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• 제10권1호
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• pp.61-69
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• 2005

In the global ship structure and vibration analysis, the FE(finite element) analysis model is required in the early design stage before the 3D CAD model is defined. And the analysis model generation process is a time-consuming job and takes much more time than the engineering work itself. In particular, ship structure has too many associated structural members such as stringers, stiffness and girders etc. These structural members should be satisfied as the constraints in analysis modeling. Therefore it is necessary to support generation of analysis model with satisfying these constraints as an automatic manner. For the effective support of the global ship analysis modeling, a method to generate analysis model using initial design information within ship design process, that hull form offset data and compartment data, is developed. In order to easily handle initial design information and FE model information, flexible data structure is proposed. An automatic quadrilateral mesh generation algorithm using initial design information to satisfy the constraints imposed on the ship structure is also proposed. The proposed data structure and mesh generation algorithm are applied for the various type of vessels for the usability test. Through this test, we have verified the stability and usefulness of this system including mesh generation algorithm.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.644-645
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• 2007

In this paper, the eigenvalue sensitivity analysis algorithm in discrete systems by the RCF method are presented and applied to the power system including TCSC. The RCF analysis method enabled to precisely calculate eigenvalue sensitivity coefficients of dominant oscillation modes after periodic switching operations. These simulation results are very different from those of the conventional continuous system analysis method such as the state space equation method

• 한국컴퓨터정보학회논문지
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• 제27권12호
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• pp.197-207
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• 2022

함정 전투체계는 안정적인 기능 처리를 위해 다수의 소프트웨어 컴포넌트로 나뉘어 동작하며, 컴포넌트 간의 데이터 송수신은 메시지 지향 미들웨어(DDS, Data Distribution Service)를 이용하여 실시간으로 이루어진다. 신뢰성 높은 사후분석을 위해서는 컴포넌트 간 송수신 되는 메시지들을 모두 수집해야 하는데, 각 메시지에 따른 공통 기능들을 직접 구현해야 하는 만큼 소프트웨어 작업도 증가하게 되고 이는 개발 비용의 증가로 이어진다. 본 논문에서는 휘처 모델(Feature Model)에 기반한 사후분석 자동화 기법과 이를 적용한 사후분석 개발 프로세스를 제안한다. 메시지 관리 시스템에서 변경되는 메시지들을 휘처 모델의 가변 요소로 적용하였고, 빌드 센터에서 사후분석을 최신화하면 메시지와 관련된 모든 소프트웨어 작업을 자동으로 처리된다. 제안하는 개발 체계는 전체적인 작업의 프로세스가 단순화되었고, 소프트웨어 작업 시간이 감소함을 확인하였다.

• Journal of information and communication convergence engineering
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• 제5권1호
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• pp.7-11
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• 2007

The aim of this paper is to design and implement a new ECG signal monitoring and analysis method for the home care of elderly persons or patients, using wireless sensor network (WSN) technology. The wireless technology for home-care purpose gives new possibilities for monitoring of vital parameter with wearable biomedical sensors and will give the patient freedom to be mobile and still be under continuously monitoring. Developed platform for portable real-time analysis of ECG signals can be used as an advanced diagnosis and alarming system. The ECG features are used to detect life-threatening arrhythmias, with an emphasis on the software for analyzing the P-wave, QRS complex, and T-wave in ECG signals at server after receiving data from base station. Based on abnormal ECG activity, the server transfer diagnostic results and alarm conditions to a doctor's PDA. Doctor can diagnose the patients who have survived from arrhythmia diseases.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.1652-1657
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• 2007

Designer must cope with frequent changes in geometric information of automobile suspension module in the early stage of the design process. The authors developed the PSG(Parametric Set Generator) to create parametric models and to change geometric information concerning the lower arm, which is one of the important parts of the automobile suspension module. CAD models provided from the PSG can be utilized to assess fatigue durability via the FE modeling support system. This system provides easy and fast FE-modeling for a static and durability analysis of the lower arm. The PSG and the FE modeling support system are integrated using the e-engineering framework based on the JADE platform. In this study, a durability analysis as a case study for the lower arm manufactured at H company is performed, and the efficiency obtained is discussed.

• 산업경영시스템학회지
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• 제23권57호
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• pp.11-20
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• 2000

In dynamic management environment, CEO must make an efficient decision with information & knowledge management systems based on IT(Information Technology). As a key component to cope with this current, we suggest the business performance analysis system based on KDD(Knowledge Discovery in Databases). We consider the theoretical model that is composited both Value-Added in respect of stakeholder and Economic Value-Added in respect of shareholder. Additionally we use DBMS and data mining method using Genetic Algorithms as physical model. To demonstrate the performance of the business performance analysis system, we analyse a domestic motors industry. The empirical case is based on the financial data of KISFAS(Korea Investors Services Financial Analysis System) database. The samples included in the study consist of H motors/S motors industry over the 16-year from 1981 to 1996.

• 한국IT서비스학회지
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• 제8권3호
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• pp.51-65
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• 2009

National qualification system for SW engineering is intended to be mechanisms to assure the competence of SW professionals. Qualification system for SW engineering can be categorized as national qualification, nationally certified private qualification, and private qualifications. In this paper, we present a summary report of needs analysis for new national qualification systems, based on the survey from human resource department managers of IT companies in IT service, package SW and embedded SW industry. The survey results show that SW qualification system is appropriate for evaluation and career management, but does not provide up-to-date information concerning the technology assessment and change. Based on the result form needs analysis, we suggest the SW specialist and embedded SW specialist as new licenses in national qualification system. In addition, we also propose SW quality management engineer, systems management engineer, IT Protect management engineer, network management engineer and SW architect engineer, as new nationally certified private qualifications.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권3호
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• pp.754-774
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• 2023

Wrestling is one of the popular events for modern sports. It is difficult to quantitatively describe a wrestling game between athletes. And deep learning can help wrestling training by human recognition techniques. Based on the characteristics of latest wrestling competition rules and human recognition technologies, a set of wrestling competition video analysis and retrieval system is proposed. This system uses a combination of literature method, observation method, interview method and mathematical statistics to conduct statistics, analysis, research and discussion on the application of technology. Combined the system application in targeted movement technology. A deep learning-based facial recognition psychological feature analysis method for the training and competition of classical wrestling after the implementation of the new rules is proposed. The experimental results of this paper showed that the proportion of natural emotions of male and female wrestlers was about 50%, indicating that the wrestler's mentality was relatively stable before the intense physical confrontation, and the test of the system also proved the stability of the system.