• 제어로봇시스템학회논문지
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• 제5권7호
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• pp.814-820
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• 1999

We propose a target identification algorithm for visual tracking. Target identification is realized by finding out corresponding line segments to the hypothesized model segments of the target. The key idea is the combination of the Mahalanobis distance with the geometrical relationship between model segments and extracted line segments.

• 한국물환경학회지
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• 제23권4호
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• pp.434-439
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• 2007

Amended Water Quality Environment Preservation Law enacted that the areas where nonpoint pollution is serious can be designated as Nonpoint Source Management Region. According to Section 54 of Water Quality Environment Preservation Law, corresponding watersheds are areas where runoff from nonpoint pollution source may deteriorate river and lake water quality, residents' health and property, and ecosystem. The criteria are as followings; i) where nonpoint source contribution result in or will result in significant ecological destruction, iii) national or local industrial complexes and cities having population greater than one million where nonpoint source managements are necessary, iv) where specific measurement is necessary because of its geological and stratigraphic characteristics. In this research, detailed designation criteria was developed reflecting current nonpoint source management situation and its discharge characteristics. Depending on the result, target regions were also suggested. In additions, it will be desirable that the target regions are prioritized considering institutional execution availability, stakeholder's agreement, and connection with existing nonpoint source pollution management measures.

• 한국진공학회지
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• 제14권4호
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• pp.245-251
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• 2005

A high performance dual rocking magnet sputtering gun has been developed. The rocking magnet sputtering gun introduces full-face erosion by rapidly rocking the magnet in the region where the high plasma density is maintained. The newly developed dual rocking magnet sputtering gun whose target utilization was 77 percent achieved high performance in quality in the view of target utilization and target life-time comparing to the existing magnetron sputtering gun. The PIC-MCC target erosion simulation has been performed simultaneously. Comparing experimental target erosion profiles with simulated target erosion profiles, the simulation could estimate the tendency of the target erosion profiles but could not estimate an exact target erosion profile. If the simulation were improved more precisely, the cost reduction for the development of the multiple rocking magnet sputtering gun would be expected.

• 환경영향평가
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• 제28권1호
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• pp.35-48
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• 2019

장기간 유량측정과 수질분석은 수질오염총량관리제도 유역의 목표수질과 허용 부하량을 결정하기 위하여 필요하다. 목표수질 달성여부를 평가하는데 사용되는 부하지속곡선은 유량과 수질간의 관계를 설명하고, 유량조건별 오염부하량 특성을 평가한다. 경안천의 부하지속곡선은 경안천 목표수질과 2006년부터 2015년까지 연평균 8일 간격으로 측정한 유량자료를 이용한 유량지속곡선에 의해서 작성되었다. 연구결과 경안천은 갈수량 구간에서 목표수질을 초과하여 점오염원에 대한 관리가 필요한 것으로 분석되었다. 또한, 연중 3월에서 6월 사이의 기간 동안에만 목표수질을 초과하는 것으로 나타나 이 기간 동안 경안천의 목표수질을 달성하기 위한 체계적인 유역 관리가 필요한 것으로 판단된다.

• Journal of Microbiology and Biotechnology
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• 제19권7호
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• pp.658-665
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• 2009

Quality control QC for spot-uniformity is a critical point in fabricating an oligonucleotide array, and quantification of targets is very important in array analysis. We developed two new types of QC probes as a means of confirming the quality of the uniformity of attached probes and the quantification of targets. We compared the signal intensities and fluorescent images of the QC and target-specific probes of arrays containing only target-specific probes and those containing both QC and target-specific probes. In a comparison of quality control methods, it was found that the arrays containing QC probes could check spot-uniformity or spot defects during all processes of array fabrication, including after spotting, after washing, and after hybridization. In a comparison of quantification results, the array fabricated by the method using QC probes showed linear and regular results because it was possible to normalize variations in spot size and morphology and amount of attached probe. This method could avoid errors originating in probe concentration and spot morphology because it could be normalized by QC probes. There were significant differences in the signal intensities of all mixtures (P<0.05). This result indicates that the method using QC probes is more useful than the ordinary method for quantification of mixed target. In the quantification of mixed targets, this method could determine a range for mixed targets of various amounts. Our results suggest that methods using QC probes for array fabrication are very useful to the quality control of spots in the fabrication processes of quantitative oligonucleotide arrays.

• 한국방사선학회논문지
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• 제7권1호
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• pp.51-55
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• 2013

엑스선의 에너지가 높으면 엑스선이 피사체(object)를 통과하여 영상의 대조도를 떨어뜨리고 엑스선의 에너지가 낮으면 영상의 대조도는 증가시키지만 엑스선이 피사체에 흡수되어 환자의 피폭선량을 증가시킨다. 그러므로 적정한 엑스선 에너지는 영상의 질과 피폭선량에 영향을 미치는 매우 중요한 요소이다. 본 논문에서는 새로운 양극물질을 사용하는 유방촬영 장치의 도입에 따라 방사선 선질이 다양해진 유방촬영장치의 영상품질관리와 환자선량관리을 위하여 유방촬영장치의 타겟 물질에 따른 에너지스펙트럼을 시뮬레이션하고 팬텀 영상의 화질을 비교하였다.

• 품질경영학회지
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• 제38권4호
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• pp.540-548
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• 2010

We consider the problem of selecting the most profitable initial process mean and length of production cycle for manufacturing processes subject to a constant linear trend during the same cycle that varies after resetting the processes. Assuming that the quality characteristic of interest is normally distributed, the optimum initial process mean and the length of production cycle are jointly obtained by minimizing the expected loss per unit time. We assume that the quality loss function due to the deviation from the target value is quadratic and resetting loss is constant. We consider both cases of symmetric and asymmetric quality loss function. An illustrative example is given and sensitivity analysis performed.

• 환경영향평가
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• 제18권1호
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• pp.1-9
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• 2009

Even though the center of Cheongju city needs redevelopment because of a doughnut phenomenon, it has to be permitted within the environmental carrying capacity like a target water quality proposed on the Total maximum daily loads(TMDL) of Musim and Miho river watersheds. The aim of in this study is to identify the limit of redeveloping Cheongju downtown after analyzing its environmental carrying capacity using QUAL2E model. As a result of modeling various scenarios, the water quality of Musin river was shown that $BOD_5$ is 2.3mg/L which is the target water quality in the double of existing development plan of the Cheongju downtown. The water quality of Miho river was $BOD_5$ 3.97mg/L which is less than the target water quality of Miho B watershed in the same condition. Therefore, this means that the limit of redevelopment within the environmental carrying capacity of cheongju downtown was estimated to be the double of existing development plan.

• 품질경영학회지
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• 제46권4호
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• pp.821-842
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• 2018

Purpose: To derive key requirements and key technologies for weapon system acquisition business by using Qualify Function Deployment (QFD), and to reduce business cost by setting the target performance and key expense of weapon system. Methods: We propose a QFD methodology that can induce rational decision-making by translating analyst's subjective opinions into quantitative values when analyzing requirements at the initial stage of weapon system development project. Based on QFD methodology, QFD application model combining house of quality, value engineering, and analogy cost estimating technique is presented. Results: It was possible to analyze the specific requirements necessary for the development of the weapon system, to solve the communication problem of the participants, to set clear development direction and target. Conclusion: By applying the QFD application model at the early stage of the weapon system acquisition project, it is possible to reduce the business cost by establishing clear development direction and goal through the procedural analysis process.

• 인터넷정보학회논문지
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• 제24권6호
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• pp.155-160
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• 2023

국방부 또는 공공기관에서 관리하는 모든 데이터베이스 및 시스템의 데이터는 일정 품질 이상 보장하는 것이 원칙이나 대부분 다수의 정보시스템을 구축·운영하기 때문에 현실적으로 모든 시스템에 대한 데이터 품질관리는 한계가 있다. 국방데이터는 업무의 특성상 공개되지 않는 데이터가 대부분이고 군에서 업무의 필요 및 중요도에 따라 전략적으로 개발되거나 통합되어 관리하는 시스템이 많다. 또한, 무기체계에서 발생하는 센서데이터, 비정형데이터, 인공지능 학습데이터 등 데이터 품질관리가 필요한 다양한 유형의 많은 데이터가 축척되고 생성되고 있다. 그러나, 국방데이터를 위한 데이터 품질관리 가이드 및 품질관리 대상 선정에 대한 가이드가 부재한 상황이고, 공공데이터 품질관리 매뉴얼의 기준에 따라 국방데이터의 품질관리 대상 데이터베이스 및 시스템을 선정하기에는 선정 기준이 모호하며 실무 담당자에 의존적이다. 따라서, 본 논문에서는 국방데이터의 품질관리를 위한 대상 체계 선정 기준에 대하여 제안하며, 제안한 선정기준들과 기존 매뉴얼의 선정기준과의 관계성에 대하여 기술한다.