• Proceedings of the Korean Information Science Society Conference
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• 2003.04c
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• pp.43-45
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• 2003

소프트웨어 공학이 소프트웨어 시스템에 관한 방법론, 기술 및 툴 등의 유지보수와 개발에 중점을 두어 왔는데 최근에는 프로세스 개선과 프로세스 능력수준의 향상에 초점을 두는 방향으로 발전하면서 CMM 및 SPICE 활동이 증가하고 있다. 이와 같은 심사기법은 대규모의 회사에서 주로 시행되고 있어서 중소규모의 조직을 위한 간략한 심사기법의 도입이 요구되는 있는 상황이다. 본 논문에서 제시하는 심사기법은 CMM 심사를 위한 KPA 설문서의 rating 방법을 응용한 것으로서 SPICE 심사를 받은 국내 기업 중 일부 회사를 대상으로 하였다. 이 방법론에 대한 신뢰성의 평가는 아직 미흡한 상황이다. 이를 위해서 통계학적 접근방법을 도입하였는데 사용된 통계 기법은 상환계수를 통한 가설검정이다. 그 결과 성숙도 설문서(MQ) 선정모델의 적합성을 통계적 기법을 통해서 검증하였다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2010.06a
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• pp.83-86
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• 2010

대기 분야에 GIS를 적용하여 대구지역 PM-10 측정망의 위치가 적절한지 평가하고, 공중보건과 밀접한 관련이 있는 PM-10을 관리하기 위한 적합한 장소를 모색하였다. 본 연구에서 GIS 기법을 사용하여 대구광역시에 설치된 PM-10 대기측정망 측정소를 분석한 결과, 설치된 위치의 적절성은 지역의 대표성을 포함하지 않고, 성향별(학교, 주거, 산업)로도 용도지역, 지목, 주변지역이 상이하기 때문에 PM-10 측정망의 설치장소가 부적절하다고 사료된다. 대구지역 뿐만 아니라 타 도시에서도 공중의 보건을 위해 측정망의 구체적인 설치 장소 선정 및 재배치가 필요할 것이라 판단된다.

• The Journal of Korean Academy of Prosthodontics
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• v.55 no.2
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• pp.135-143
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• 2017

Purpose: This research was conducted to compare the marginal and internal fit of zirconia prostheses fabricated with the model scan method and the intraoral scan method. Materials and methods: In this study, 20 extracted human mandibular first molar was used in the preparation of abutment tooth for the fabrication of zirconia prostheses. In the first group, the model scan method was applied on 10 prepared teeth. In the other group, the intraoral scan method was used on other 10 prepared teeth. Datum of both groups were transmitted to the software system. Afterwards, 20 zirconia prostheses were fabricated using the Ceramill system. Weight technique was used to evaluate the internal gap of the zirconia prostheses. In the Replica technique, marginal gap of the zirconia prostheses were analyzed by optical microscopy. Statistical analysis was based on one-way ANOVA. Results: Model scan group showed lower average weight than intraoral scan group when weight technique was applied, which has significance (P < .05). Also, model scan group showed significantly lower figures in all 5 measurements of replica technique than intraoral scan group (P < .05). Conclusion: Zirconia prostheses of both groups demonstrated clinically acceptable margin and internal fit. However, model scanned zirconia prostheses showed higher marginal and internal fit than intraoral scanned crowns.

• The Transactions of the Korea Information Processing Society
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• v.4 no.5
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• pp.1267-1276
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• 1997

In this paper, the optimal model for specific test data was selected autimatically among sofware reliability growh models bassed on NAPP(Non Homogeneous Posission Preocess), and in result the tool for the reliability estimating scales was implemented.Whith the implemented tool, software optimal rekiability estimating scales(total expected number errors, error detection rate, expected number of errors remaining in the sortware, reliability, ete) could be predicted. By the reliability estimating scales gained form this, sofware development and projecr management could be applied. In order to test the optimal of the implemented tool, the comparicon with other paper and analization was done by using actual error data.

• Science of Emotion and Sensibility
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• v.12 no.2
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• pp.215-224
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• 2009

This research extracted emotional words for measuring user's emotions expressed while using a cellular phone and a web. And then the emotional words were compared to find out whether the difference in emotional words by the type of products. The results of this study suggest that the hardware-oriented products used for specific purpose such as cellular phone extracted a lot of emotional words related to 'Satisfaction in Usability' and 'Pleasure'. 'Satisfaction in Usability' are conceived satisfying in usability or practicality of product. 'Pleasure' are pleasant emotions expressed while using a product. However the emotional words related to 'Aesthetics' and 'Novelty' were omitted. 'Aesthetics' are expressed by product's appearance and by various visual information while using a product. 'Novelty' are expressed by something that is novel and new that has never been experienced. On the other hand the software-oriented products used rather to find something better and new information than to perform specific tasks such as web extracted a lot of emotional words related to 'Novelty'. Therefore, the results of this research have found evidence that it is desirable to make a set of subjective evaluation scale by the type of products. When making the subjective evaluation scale, it is important to use appropriate emotional words for the purpose of use and the characteristics of those products.

• Nuclear Engineering and Technology
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• v.27 no.2
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• pp.269-279
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• 1995

가압경수로에서 증기발생기와 같은 주기기를 원자로 내부에 위치하도록 설계한 원자로를 일체형 원자로라고 분류하며, 기존 상용원자로와 같이 모든 주기기가 별도의 압력용기로 설계되어 배관계통에 의해 원자로 외부에 순환회로를 갖는 형태의 원자로를 분리형원자로라고 한다. 최근에 개발되고 있는 한 부류의 신형원자로에서는 원자로 및 계통의 단순성 추구와 계통의 높은 신뢰성으로 안전성 향상을 위해 동력원 사용 등의 능동적 안전개념 보다는 자연현상을 이용하는 피동안전개념이 널리 도입되고 있다. 본보고서에서는 이러한 신형원자로의 노형으로서 일체형원자로의 특성을 전통적인 분리형원자로와 비교, 분석, 평가하였다. 일체형원자로의 가장 큰 장점은 모든 주기기가 단일 압력용기 내에 위치하므로 일차계통이 매우 단순하고 대구경 배관이 없기때문에 대형 냉각재 상실사고가 근본적으로 방지되어 안전계통이 매우 단순하다는 것이다. 이 외에도 일체형원자로는 대단히 많은 일차냉각재 용량, 매우 큰 가압기 용량및 긴 운전원 조치시간등의 설계특성을 보유하고 있어 안전성이 탁월하다는 장점을 지니고 있다. 그러나, 일체형원자로는 모든 주기기가 단일 압력용기 내에 설치되므로 대형 원자로 용기가 요구되며, 원자로 압력용기의 제작성 및 운송 능력이 원자로의 용량을 제한하는 주된 요인이 된다. 일체형원자로의 활용으로 열병합 발전, 지역난방 및 선박용 원자로등의 중소형 원자로에 매우 적합하다고 판단되며, 뛰어난 안전성으로 인하여 사회적 수용성 이 강조되는 상용발전로로서도 적합한 노형이 될 수 있을 것으로 분석되었다.

• Journal of the Korea Concrete Institute
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• v.25 no.5
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• pp.509-516
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• 2013

In this paper, performance based design of coupling beam using non-linear static analysis is proposed considering probability distribution of flexural and shear strength in order to develop flexural hinge. This method considers post-yielding behavior of coupling beam and stress redistribution of system. It can verify the reduced effective stiffness to meet the current design requirement based on linear analysis. It also evaluates the lateral displacement under service load (un-factored wind load) properly. In addition, it can optimize the coupled shear wall system by taking stress redistribution between members into account. For a simplified 30-story building, non-linear static (push-over) analysis was performed and the structural behavior was checked at performance point and several displacement steps. Furthermore, system behavior according to the amount of reinforcement and depth of coupling beam was explored and compared each other.

• Journal of the Society of Naval Architects of Korea
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• v.52 no.2
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• pp.153-160
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• 2015

Pipelines are one of the most important structures in subsea equipment. It is the main equipment for transportation of crude oil and natural gas to the downstream facilities. Crude oil and natural gas leak will be carry out not only political and financial issues but also pollution to the environment. Inaccurate predictions of corrosion behavior will make hazardous consequences. The serviceability assessment of corroded structures is essential especially for subsea pipelines. As corrosion is concerned, the effects of failure due to significant reduction will make it hard to the pipeline operator to maintain the serviceability of pipelines. In this paper, the serviceability assessment of corroded crude oil pipeline is performed using the industry design code (Shell92, DNV RP F101, ASME B31G, BS 7910, PCORRC) and FEA depending on corrosion area. In last step, the future integrity of the subsea crude oil pipeline is assessed to predict the remaining year in service of crude oil pipelines.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.05a
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• pp.274-276
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• 2021

As artificial intelligence develops rapidly, we can experience it in our everyday life such as with medical, education, and game applications. Traditional SW services were programmed explicitly by the intention of the programmer, and we have conducted evaluation on it. However, due to the uncertianty of AI services, risk follows to the products. Therefore, UX evaluations need to be different from traditional UX evaluations. Therefore, in this paper we suggest a AI-UX framework that consideres the task delegability, UX evaluations metrics, and individual differences.

• International Journal of Highway Engineering
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• v.14 no.1
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• pp.1-8
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• 2012

The horizontal alignment of road is deeply related with the stability of the road and traffic capacity. It is necessary to analyze horizontal alignment of road accurately for efficient maintenance of the road and relevance judgment about the standard. Recently the study on horizontal alignment of road using Lidar data and GPS was concluded, but they were many problem analyzing horizontal alignment radius of curvature in wide area. In this study, the tool which the radius of curvature can evaluate the suitability about "Rules about the Road Structure & Facilities Standards" by using center lines of the road of the digital map tries to implement on GIS. The interface was designed and implemented which can automatically estimate the Road Centerline Horizontal Alignment by using $ESRI^{(R)}$ $ArcObject^{TM}$.