• 한국안전학회지
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• 제29권6호
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• pp.81-86
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• 2014

Composite materials have high specific stiffness, specific strength than existing concrete or steel materials. It has superior dynamic properties when utilizing advantages of material such as Non-corrosive, light weight, non-conducting and it has superior mold ability which can make variable shapes. Thus, in the construction, for using composite materials as construction materials, the study carried out static strength of fiber right angle direction and fatigue performance of FRP deck member. The study is going to deduct S-N curve by analyzing the results comparatively and estimate long-term durability. From now on, the study is going to provide interpretation of FRP member and basic data of design basis, furthermore providing foundation technique of composite materials' application of structural frame is the goal of this study.

• 대한음성학회지:말소리
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• 제60호
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• pp.85-96
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• 2006

The aim of the present study was to investigate a simile comprehension of children with and without mental retardation. Thirteen children with mental retardation and ten normal children with matched receptive vocabulary ability participated in the study. They were between five and eight years old in the age of receptive vocabulary. Fourteen picture plates were used and each plate consisted of three pictures. The findings were as fellows. First, children with mental retardation made significantly more errors than normal children in the comprehension of simile. Second, mental retarded children and normal children did not have a significant correlation between receptive vocabulary development and comprehension of simile. Finally, on simile interpretation type, children with mental retardation were likely to think a tenor into a vehicle because they failed to recognize the syntactic structure of simile, 'A is like B'. Thus, It is important to teach mental retarded children the syntactic structures of simile and to provide them with a variety of experience as well as to let them know an exact meaning of words.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2001년도 춘계종합학술대회
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• pp.656-659
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• 2001

Human have a notable ability to recognize faces, which is one of the most common visual feature in our environment. In regarding face pattern, just like other natural object, a geometrical interpretation of face is difficult to achieve. In this paper, we present wavelet based approach to extract the face features. Proposed approach is similar to the feature based scheme, where the feature is derived from the intensity data without detecting any knowledge of the significant feature. Topological graphs are involved to represent some relations between facial features. In our experiments, proposed approach is less sensitive to the intensity variation.

• ETRI Journal
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• 제36권6호
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• pp.1023-1031
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• 2014

Failure analysis is necessary to clarify the root cause of a failure, predict the next time a failure may occur, and improve the performance and reliability of a system. However, it is not an easy task to analyze and interpret failure data, especially for complex systems. Usually, these data are represented using many attributes, and sometimes they are inconsistent and ambiguous. In this paper, we present a scalable approach for the analysis and interpretation of failure data of high-performance computing systems. The approach employs rough sets theory (RST) for this task. The application of RST to a large publicly available set of failure data highlights the main attributes responsible for the root cause of a failure. In addition, it is used to analyze other failure characteristics, such as time between failures, repair times, workload running on a failed node, and failure category. Experimental results show the scalability of the presented approach and its ability to reveal dependencies among different failure characteristics.

• 천문학논총
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• 제15권spc2호
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• pp.27-35
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• 2000

The investigation of the space environment requires the use of experimental and theoretical tools and resources in order to perform the research task. Understanding of these research tools is imperative for proper interpretation of the results. In this paper, we discuss on research tools that are widely used in the field of aeronomy; Fabry-Perot interferometer and Michelson interferometer. These instruments have been used extensively as passive optical devices, spectrally monitoring the natural atmospheric emissions (airglow). This function has made both instruments valuable tools in upper atmospheric studies since they provide the ability to determine the dynamic and thermodynamic properties of the upper atmosphere by monitoring naturally-occuring emission.

• 한국정보통신학회논문지
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• 제5권2호
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• pp.349-355
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• 2001

Human have a notable ability to recognize faces, which is one of the most common visual feature in our environment. In regarding face pattern, just like other natural object, a geometrical interpretation of face is difficult to achieve. In this paper, we present wavelet based approach to extract the face features. Proposed approach is similar to the feature based scheme, where the feature is derived from the intensity data without detecting any knowledge of the significant feature. Topological graphs are involved to represent some relations between facial features. In our experiments, proposed approach is less sensitive to the intensity variation.

• Korean Journal of Radiology
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• 제20권4호
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• pp.533-541
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• 2019

Breast magnetic resonance imaging (MRI) has been increasingly utilized, especially in screening for high-risk cases, because of its high sensitivity and superior ability to detect cancers as compared with mammography and ultrasound. Several limitations such as higher cost, longer examination time, longer interpretation time, and low availability have hindered the wider application of MRI, especially for screening of average-risk women. To overcome some of these limitations and increase access to MRI screening, an abbreviated breast MRI protocol has been introduced. Abbreviated breast MRI is becoming popular and challenges the status quo. This review aims to present an overview of abbreviated MRI, discuss the current findings, and introduce ongoing prospective trials.

• KSBB Journal
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• 제7권1호
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• pp.73-78
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• 1992

곰팡이의 일종인Poria cocos, Trichodermareesei, Candide tropicalis, Aspergillus niger를 이용하여 호주산 갈탄의 액화를 연구하였다. 갈탄을 전처리하는 방법을 달리하여 전처리가 갈탄의 액화에 미치는 영향에 관하여 알아보았으며, 질산과 과산화수소가 호주산 갈탄을 액화하는데 우수한 전처리제라는 사실을 확인하였다. 사용한 여러 균주 가운데 Poria cocos가 가장 뛰어난 액화능을 나타내었으며, 석탄 액화 물질의 구조를 Infrared, Nuclear magnetic resonance, Ultraviolet 분광법을 사용하여 예측하였다.

• 정보학연구
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• 제5권4호
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• pp.35-44
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• 2002

자바의 이전성은 해석 방식에 따른 비효율성을 낳는다. 또한 일반 응용 프로그램에서 자바의 표준 클래스 라이브러리는 플랫폼 의존적인 기능을 제공하지 못한다. 이러한 여러 가지 문제를 해결하기 위해 JNI, JIT, 오프라인 바이트코드 컴파일러가 제안되어왔다. 본 논문에서는 자바 가상기계가 네이티브 코드와 함께 실행되는 혼합형 실행 모델을 제시한다. 현 실행 모델과 번역기는 동적으로 바이트코드를 적재할 수 있는 능력이 주어지며 JNI의 수월한 사용을 제공한다. 본 시스템은 JIT 보다 효율적이며, JNI의 개념이 부족한 프로그래머가 쉽게 네이티브코드 작성할 수 있도록 한다.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2004년도 추계학술대회
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• pp.47-51
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• 2004

Facility layout for enterprise's competitive power strengthening and construction of offensive manufacture line and direction presentation for design of production management system that is new by operation improvement according to S company. In enterprise in JIT(Just in Time) system of leading persons affecting in productions among a lot of habitat factor analyze. It is that through equipment Layout among those factors enterprise my problem improve and serves enterprise's absolute ability cultivation. Even if it is JIT production main point that affect to apply the modular production to productive system among at equipment Layout, lot size, bottleneck session etc. worker's multi-function anger, change of demand factor and productive capacity add. 'S' Through enterprise's example, I wish to establish Korean medium and small enterprises' manufacturing industry style equipment Layout model by taken place effect interpretation.