• 대한상한금궤의학회지
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• 제9권1호
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• pp.21-28
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• 2017

Objective : The purpose of this paper is to report the improvement of patient with dizziness treated by herb medication based on Shanghanlun disease pattern identification diagnostic system. Methods : According to 'Disease Pattern Identification Diagnostic System based on Shanghanlun Provisions', the patient diagnosed with Taeyang-byung, number 27 provision, and took Guizhieryuebiyi-tang herb medication 30 days. The changing symptom of dizziness was estimated by VAS(Visual Analogue Scale). Results : The VAS changed 10 to 0. Conclusions : On the number 27 provision of Shanghanlun, '弱' means lower body helplessness. This is the first case report treating the dizziness with Guizhieryuebiyi-tang in Korea.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.375-375
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• 2000

Estimating software development effort remains a complex problem attracting considerable research attention. Improving the estimation techniques available to project managers would facilitate more effective control of time and budgets in software development as well as market. However, estimation is difficult because of its similarity to export judgment approaches and fur its potential as an expert assistant in support of human judgment. Especially, in software development for DCS (Distributed Control System), because of infrastructure software related to target-machines hardware and process characteristics should be considered, estimating software development effort is more complex. This paper suggests software development effort estimation technique using neural network. The methods considered are based on COCOMO and case-based projects. Estimation results applied to case-based project appeared to have value fur software development effort estimation models.

• 제어로봇시스템학회논문지
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• 제6권2호
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• pp.121-126
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• 2000

In the fast sampling limit the delta operator model tends to the analog system model. This fundamental property of the delta operator model unifies continuous and discrete time control system. In this paper we study robust linear optimal model following servo system in the presence of disturbances and parameter perturbations. A technique to directly design the generalized differential operator based unified control system that covers both differential operator based continuous time and delta operator based discrete time case is presented. The quadratic criterion function for a linear system is used to design the robust unified servo control system The characteristics of the proposed servo system are analysed and simulated to verify the robustness.

• 디지털산업정보학회논문지
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• 제8권1호
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• pp.81-87
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• 2012

Intrusion Detection System that protects system safely is necessary as network technology is developed rapidly and application division is wide. Intrusion Detection System among others can construct system without participation of other severs. But it has weakness that big load in system happens and it has low efficient because every traffics are inspected in case that mass traffic happen. In this study, Distributed Intrusion Detection System based on protocol is proposed to reduce traffic of intrusion detection system and provide stabilized intrusion detection technique even though mass traffic happen. It also copes to attack actively by providing automatic update of using rules to detect intrusion in sub Intrusion Detection System.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제22권8호
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• pp.363-368
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• 2016

기존의 스토리지 기반 가상 데스크탑 시스템은 디스크에 입출력이 집중될 경우 성능이 저하되는 문제가 발생하였다. 따라서, 부트 스톰과 같이 여러 대의 가상 데스크탑이 동시에 부팅할 경우, 시스템의 성능이 급격히 저하되었다. 본 논문에서는 가상 데스크탑 시스템의 성능을 향상시킬 수 있는 메인 메모리 기반 가상 데스크탑 시스템을 제안한다. 본 시스템에서는 가상 데스크탑 이미지를 메인 메모리에 저장함으로써 전체 시스템의 성능을 향상시키고, 중복 제거 기술을 적용하여 용량이 많은 가상 데스크탑 이미지를 한정된 크기의 메인 메모리에 저장하였다. 본 시스템의 구현 및 실험을 통하여 가상 데스크탑을 동시 부팅할 때, 스토리지 기반 가상 데스크탑 보다 부팅 속도가 4배 빠름을 확인하였다.

• 한국재난정보학회 논문집
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• 제1권1호
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• pp.73-89
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• 2005

The disaster preparedness system in Korea has been developed in spite of many obstacles, but there are still many problems for response to newly emerging terrorisms due to the existing problems of disaster response system. The newly emerging terrorism in 21th century like biochemical terrorism has made us focus on terrorism preparedness, but health and medical aspect of terrorism has been overlooked. The health disaster system is more necessary for 21th terrorism response as well as the disaster engineering, economic and administrative aspects. The disaster preparedness system for bioterrorism has been developed by Ministry of Health with syndromic surveillance system and no case has been found in Korea yet and the resources of personnel and equipment as decontamination system in medical facilities are lacking in case of chemical terrorism. So through the multiple access method reflecting the risk factors in real terrorism field and human based health disaster concept, the disaster preparedness and response system to make up for the weak point should be suggested.

• 한국군사과학기술학회지
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• 제20권5호
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• pp.688-699
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• 2017

Model-based test, a well-known method of the black box tests, is consisted of the following four steps : model construction using requirement, test case generation from the model, execution of a SUT (software under test) and detection failures. Among models constructed in the first step, state-based models such as UML standard State Machine are commonly used to design event-based embedded systems (e.g., weapon control systems). To generate test cases from state-based models in the next step, coverage-based techniques such as state coverage and transition coverage are used. Round-trip path coverage technique using W-Method, one of coverage-based techniques, is known as more effective method than others. However it has a limitation of low failure observability because the W-Method technique terminates a testing process when arrivals meet states already visited and it is hard to decide the current state is completely same or not with the previous in the case like the GUI environment. In other words, there can exist unrevealed faults. Therefore, this study suggests a Extended W-Method. The Extended W-Method extends the round-trip path to a final state to improve failure observability. In this paper, we compare effectiveness and efficiency with requirement-item-based technique, W-Method and our Extended W-Method. The result shows that our technique can detect five and two more faults respectively and has the performance of 28 % and 42 % higher failure detection probability than the requirement-item-based and W-Method techniques, respectively.

• Journal of Electrical Engineering and Technology
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• 제7권5호
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• pp.698-704
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• 2012

This paper proposes a new methodology for evaluating the probabilistic reliability based grid expansion planning of composite power system including the Wind Turbine Generators. The proposed model includes capacity limitations and uncertainties of the generators and transmission lines. It proposes to handle the uncertainties of system elements (generators, lines, transformers and wind resources of WTG, etc.) by a Composite power system Equivalent Load Duration Curve (CMELDC)-based model considering wind turbine generators (WTG). The model is derived from a nodal equivalent load duration curve based on an effective nodal load model including WTGs. Several scenarios are used to choose the optimal solution among various scenarios featuring new candidate lines. The characteristics and effectiveness of this simulation model are illustrated by case study using Jeju power system in South Korea.

• 대한상한금궤의학회지
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• 제6권1호
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• pp.37-54
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• 2014

Objective : The purpose of this paper is to report the effect of three different herb medication based on Shanghanlun(傷寒論) six differential diagnostic system. Methods : According to six differential diagnostic system based on Shanghanlun provisions, they were diagnosed with Taiyang-byung(大陽病), Yangmyung-byung(陽明病), Gwoleum-byung(厥陰病). They took different herb medications more than 6weeks according to their diagnosis. This paper evaluated the results of treatment by pregnancy test result with improvement of symptoms. Results : The symptoms of three patients were improved and became pregnant. Conclusions : This case study suggests that herb medication based on Shanghanlun(傷寒論) six differential diagnostic system have effectiveness on unexplained infertility. And we need to have a diversified and new perspectives in women's position about pregnancy with this system.

• 한국정밀공학회지
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• 제17권7호
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• pp.98-105
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• 2000

In this study, we developed rotating machine vibration condition monitoring system based upon Windows NT and DSP Board. Developed system includes signal analysis module, trend monitoring and simple diagnosis using threshold value. Trend analysis and report generation are offered with database management tool which was developed in MS-ACCESS environment. Post-processor, based upon Matlab, is developed for vibration signal analysis and fault detection using statistical pattern recognition scheme based upon Bayes discrimination rule and neural networks. Concerning to Bayes discrimination rule, the developed system contains the linear discrimination rule with common covariance matrices and the quadratic discrimination rule under different covariance matrices. Also the system contains k-nearest neighbor method to directly estimate a posterior probability of each class. The result of case studies with the data acquired from Pyung-tak LNG pump and experimental setup show that the system developed in this research is very effective and useful.