• Journal of Korea Port Economic Association
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• v.21 no.4
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• pp.161-181
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• 2005

This paper investigates the circumstances and conditions of Mokpo Port to develop it as an international logistics stronghold and seeks scheme to maximize the local economic ripple effect through construction and activation of Mokpo New Port. Under the circumstances in which neighboring ports vying with each other have built broad spheres of influence, and competition among ports becomes fierce, a priority cargo attraction strategy should be established by using Mokpo's favorable location compared to other ports in order to ensure that a large quantity of goods is transported from Mokpo New Port. Especially, Mokpo New Port needs to be developed as a vehicles-only exporting port, as well as a port for used car exports and an import port for stones and timber.

• Journal of The Korean Society of Agricultural Engineers
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• v.48 no.1
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• pp.41-48
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• 2006

In the evaluation of rural amenities, its properties are related with social, cultural, and environmental elements. In this study, Information Measure Model (IMM) and Cultural Property Priority Assessment Model (CPPAM) were developed adapting information measure model with text based surveying data. To apply developed model not only general properties but also specific surveyed data, Specific Information Gathering and Utilizing System (SIGUS) was constructed using the data in Dusan World encyclopedia. IMM shows priorities of cultural property by information in national-designated cultural properties. And CPPAM applied in surveying data in 2004 by Rural Resources Development Institute.

• Nuclear Engineering and Technology
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• v.53 no.5
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• pp.1464-1478
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• 2021

Selective Production of Exotic Species is an innovative plant for advanced nuclear physic studies. A radioactive beam, generated by using an UCx target-ion source system, is ionized, selected and accelerated for experimental objects. Very high vacuum conditions and appropriate safety systems to storage exhaust gases are required to avoid radiological risk for operators and people. In this paper, Failure Mode, Effects, and Criticality Analysis of a preliminary design of high activity gas recovery system is performed by using a modified Fuzzy Risk Priority Number to rank the most critical components in terms of failures and human errors. Comparisons between fuzzy approach and classic application allow to show that Fuzzy Risk Priority Number is able to enhance the focus of risk assessments and to improve the safety of complex and innovative systems such as those under consideration.

• Journal of KIISE:Software and Applications
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• v.30 no.3_4
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• pp.285-292
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• 2003

Existing MPEG-4 players have limitation of screen blinks and drops of object rendering speed when user insert, delete, and replace objects on scenes. In this paper, an Object Priority Order Composition operated through the MPEG-4 player is proposed. This composition is the method for presentation user can insert, delete, and replace scene objects more efficiently. Therefore, this composition can show the MPEG-4 multimedia scenes without blinks and delays on MPR-4 player may seem random and natural.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2014.05a
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• pp.174-175
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• 2014

A Rural house in Chungcheong area have been variety of matters, rapid deterioration of house and incomplete of maintenance control, that is represented lack of durability heating from lack of heat insulation property, health worsening form use of toxic substance and so on. For farmers who did not know where to repair and how to repair, they are urgently needed measures of standard and basis that is to realize a condition of rural house. Accordingly, this study drew major matters and priority for revitalization through analysis of type of rural house from research on the actual condition in order to develope of diagnostic criteria of rural house.

• Annual Conference of KIPS
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• 2002.11a
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• pp.555-558
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• 2002

실시간 시스템의 개발 및 운영에 사용되는 실시간 운영체제는 여러 개의 태스크가 동시에 작업할 수 있는 멀티태스킹 환경과 각 태스크에 우선순위를 부여하여 가장 높은 우선순위의 태스크가 CPU 를 선점하는 스케줄링 방법, 태스크간 동기화 및 통신을 위한 메커니즘을 제공하고 있다. 그리고 여러 태스크들에 의해 사용되는 공유자원을 관리하기 위해 세마포어를 사용하여 태스크간에 동기화를 제공한다. 하지만 세마포어만으로 공유자원을 관리하게 되면 더 높은 우선순위의 태스크가 실행 준비 되어 있음에도 불구하고 상대적으로 낮은 우선순위의 태스크가 CPU 를 선점하는 우선순위 역전이 발생하여 실시간 운영체제의 핵심인 시간 결정성을 만족하지 못해 시스템에 심각한 문제를 발생 시킬 수 있다. 본 논문에서는 실시간 운영체제인 $iRTOS^{TM}$에서 우선순위 역전을 예방하기 위한 방법중 하나인 Priority Ceiling Protocol을 이용한 Mutual Exclusion Semaphore를 설계하고 구현한 내용을 기술한다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11a
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• pp.805-807
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• 2005

실시간 운영체제는 정해진 시간 내에 작업처리를 완료해야 하는 분야에 주로 사용되고 있으며, 최적의 실시간 운영체제를 설계 및 개발하기 위해서는 반드시 필요한 몇 가지 조건들이 있다. 본 논문에서는 실시간 운명체제에 필요한 조건 중에서 우선순위 역전 현상을 해결하는 기법을 제안한다. 기존에 우선순위 역전 현상을 해결하기 위하여 Basic Priority Inheritance 프로토콜, Priority Ceilling Emulation 프로토콜 등이 제안되었다. 그러나 이러한 기법들은 복잡한 형태의 우선순위 역전 현상에 대해서는 해결이 불가능하거나, 실행 시 비효율성 등의 문제가 발생하기 때문에 실제로는 여러 가지 기법들과 혼용되어 사용되었다. 이에 본 논문에서는 재귀적인 형태의 자료구조를 사용하여 우선순위 역전 현상을 효과적으로 해결하는 기법을 보이고, 기존 기법들과 비교한다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11a
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• pp.913-915
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• 2005

실시간 시스템에서는 두 개 이상의 태스크가 공유자원을 사용한다. 이러한 자원에 의해서 높은 우선순위 태스크가 낮은 우선순위 태스크에 의해서 CPU를 점유 당하는 우선순위 역전현상(Priority Inversion)이 발생한다. 우선순위 역전 문제는 실시간 시스템의 스케줄 가능성과 예측성에 심각한 결함을 야기할 수 있다. 이를 해결하기 위해 본 논문에서는 비교적 크기가 작으면서도 실시간 운영체제의 핵심적 특징을 잘 갖추고 있는 $iRTOS^{TM}$ 커널을 사용하였고 우선순위 역전을 해결하기 위해서 Priority Inheritance Protocol을 사용하여 확장된 MuTexS를 구현하였다.

• Journal of Information Technology Services
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• v.12 no.2
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• pp.291-300
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• 2013

In this study, divide by a private enterprise and army, 2 organizations about observed priority item among administrator, service provider, user viewpoint about the information security item for smartwork activation and in 3 steps hierarchic according to AHP technique analyzed and decided priority for information security observance item. As a result, importance difference could confirm identified by administrator, service provider, user viewpoint period of about information security observance item recognizing in a private enterprise and army.

• International Journal of Highway Engineering
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• v.7 no.4 s.26
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• pp.21-30
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• 2005

Traffic volume data have been used for the plan, the design, and the operation of highway. Since 1955, traffic survey has been nation- widely carried out at national highway and the regular survey in national highway has been conducted at the intersections of highways. However, it is critical issue to select the priority of the regular survey because it is almost impossible to conduct regular survey at all intersections of national highways. In this study, MCDM(Multiple Criteria Decision Making) using AHP(Analytic Hierarchy Process) was applied to decide the priority of the regular survey. The following standard variables for determining the priority was selected the highway plan variables[AADT, VKT, Peak Hourly Volume, Location of highway from Urban], the highway design variables[Volume(pcu), Directional Traffic Volume, Heavy Vehicle Rate], and the highway operation variables[Speed, Density, V/C]. The standard variables were quantified and normalized. Using the Eigen vector method, the weighted values of each hierarchy based on the pair-wise comparison values from the questionnaire survey were calculated. The selection of the priority of regular survey was dependent on the size of the product of the weighted values for each hierarchy and the normalized values for the standard variables. Finally, the priority of regular survey of the intersections of national highways was determined according to the order in the size of the product of two values.