• 응용통계연구
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• 제25권3호
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• pp.521-529
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• 2012

Simple canonical correlation biplot is a graphical method to investigate two sets of variables and observations in simple canonical correlation analysis. If we consider the set of covariate variables that linearly affects two sets of variables, we can apply the partial canonical correlation biplot in partial canonical correlation analysis that removes the linear effect of the set of covariate variables on two sets of variables. On the other hand, we consider the set of covariate variables that linearly affect one set of variables but not the other. In this case, if we apply the simple or partial canonical correlation biplot, we cannot clearly interpret other two sets of variables. Therefore, in this study, we will apply the semi-partial canonical correlation analysis of Timm (2002) and remove the linear effect of the set of covariate variables on one set of variables but not the other. And we suggest the semi-partial canonical correlation biplot for interpreting the semi-partial canonical correlation analysis. In addition, we will compare shapes and shape the variabilities of the simple, partial and semi-partial canonical correlation biplots using a procrustes analysis.

• 융합신호처리학회논문지
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• 제14권2호
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• pp.105-109
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• 2013

There are the free space model, the direct-path and ground reflected model, Egli model, Okumura-Hata model in the representative propagational models. The measured results at the area of PNG area were used as the experimental data in this paper. The new proposed partial interval analysis method is applied on the measured propagation data in the cellular band. The interval for the analysis is divided from the entire 30 Km distance to 5 Km, and next to 1 Km. The best-fit propagation models are chosen on all partial intervals. The means and standard deviations are calculated for the differences between the measured data and all partial interval models. By using the 5 Km- or 1 Km- partial interval analysis, the standard deviation between the measured data and the partial propagation models was improved more than 1.7 dB.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제55권6호
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• pp.308-312
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• 2006

Partial Discharge (PD) phenomena occurred by different nature of insulating defects has been regarded as a random process by which Phase Resolved Partial Discharge Analysis(PRPDA) has been proposed and then commercially accepted for the diagnosis of the power apparatus since more than three decades. Moreover, for the same purpose, a novel approach based on the Chaotic Analysis(CAPD) has been proposed since 2000, in which Partial Discharge(PD) phenomena is suggested to be considered as a deterministic dynamical process. In this work, for the diagnosis of Gas Insulated Transformer(GITr), four different types of specimen were fabricated as a model of the possible defects that might possibly cause its sudden failures such as turn to turn insulation, inter coil insulation, free moving particle and protrusion. For this purpose, these defects are introduced into the Gas Insulated Transformer(GITr) mock-up and experimental investigations have been carried out in order to analyze the related Partial Discharge(PD) patterns by means of both Phase Resolved Partial Discharge Analysis(PRPDA) and Chaotic Analysis(CAPD) respectively and then their comparisons are made systematically.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1990년도 하계학술대회 논문집
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• pp.283-285
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• 1990

This paper describes on partial discharge in polyethyelen that are important for materials analysis, and so to will introduce to system of partial discharge analysis. The results of this study will be provided on properties of partial discharge in polymer materials.

• KIEE International Transactions on Electrophysics and Applications
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• 제2C권5호
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• pp.239-245
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• 2002

In this work, in order to realize the possible defects at the cable joint interface, four different types of artificial defects are provided : conducting, insulating substances, void and scratches. The analysis related to the PD patterns has been performed by means of conventional Phase Resolved Partial Discharge Analysis (PRPDA) and Chaotic Analysis of Partial Discharge (CAPD) as well which was proposed by our previous communication. As a result, it could be pointed out that each defect has shown particular characteristics in its pattern respectively and that the nature of defect causing partial discharge could be identified more distinctively when the CAPD is combined with the conventional statistic method, PRPDA.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1997년도 추계학술대회 논문집
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• pp.451-455
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• 1997

The partial discharge has been blown as the chief breakdown of power equipments. The analysis and the recognition is much difficult because the partial discharge signal is very small and has complex aging pattern. Recently, insulation aging diagnosis based on pattern of phase(Ф), partial discharge magnitude(q), number(n) has been very important. Owing to depreciate the reappearance of aging progress at the electrical tree pattern and to be difficult to analyze visually, the study on partial discharge pattern is suggested to normalizing analysis method of partial discharge signals. This parer is purposed on prediction of life-time measurement of cv-cable, on decision of risk degree with normalization and real-time measurement of partial discharge signals for aging diagnosis of cv-cable. As normalizing the aging signals of electrical tree in cv-cable, it is able to confirm risk degree of insulation material with the distribution of Ф-q-n and recognize the process of aging pattern using neural network.

• 비교문화연구
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• 제49권
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• pp.275-301
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• 2017

본 논문은 부분 중첩으로 만들어진 한국어 상징 부사를 대상으로 한 중국 학자 왕홍군(王洪君)의 운율 형태론적 분석의 문제점과 한계를 지적하기 위해 작성되었다. 필자는 왕홍군(王洪君)과는 달리 부분 중첩 현상을 일관되게 접두사화로 가정하고, 접두사 부가 방식에 대한 분류를 시도해 보았으며, 그 결과 어간의 형태, 특히 말음으로 나타나는 소리 자질은 접두사 부가의 양상을 결정하는데 중요한 요인임을 알 수 있었다. 또한 표준 중국어 의성어 부분 중첩 현상에서 접두사 부가에 대한 최적성 이론적 분석을 보이고 이를 토대로 한국어와 표준 중국어 의성 의태어의 제약 등급 순위를 대조한 결과 중첩의 적용 양식이 같음을 확인할 수 있었다. 아울러 두 언어에서 공히 설단음 /t/와 유음 /l/이 특별한 지위를 갖고 있는 이유를 기능론적 관점에서 설명하였다. 이로써 본 논문에서는 최적성 이론의 틀 안에서 중요한 몇 개의 제약과 그들의 특정 등급만으로 다양한 유형의 한국어와 표준 중국어의 부분 중첩 의성 의태어를 쉽게 분석할 수 있음을 보였다.

• 한국화재소방학회논문지
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• 제31권4호
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• pp.111-118
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• 2017

본 논문은 반단선과 트래킹에 의한 복합적 전기화재의 위험성분석에 관한 연구이다. 먼저, 단일원인인 반단선에 의한 전기화재 위험성을 분석하기 위해 전선의 소선 수 및 정격전류의 변화에 따른 열적특성을 측정하였다. 또한, 그 후 복합적 원인에 의한 전기화재 위험성을 분석하기 위해 반단선 상태에서 추가적으로 가속트래킹 실험을 실시하여 반단선과 트래킹의 화재연관성을 확인하였다. 실험결과 반단선이 단일원인으로 작용할 때의 전류에 의해 발생된 기존 열적특성과 트래킹이 복합적으로 작용함으로써 전류가 크게 증가되어 열적특성이 더욱 뚜렷이 나타나 단일원인에서 발생되지 않았던 급격한 온도상승으로 인한 소선의 단선이 복합적 원인에서 나타났다. 즉, 기존의 반단선에 의한 전기화재 위험성보다 반단선과 트래킹이 복합적으로 작용될 경우 상대적으로 그 위험성이 크게 증가되는 것을 확인할 수 있었다.

• 전기학회논문지
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• 제65권8호
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• pp.1436-1441
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• 2016

Currently, partial discharge diagnosis in the field of prevention applied technology and diagnostic equipment is a possible strong limit to remove the noise generated by external or internal I still have one unreliable diagnosis. This technology is the noise removal from signal the time lag analysis algorithms technique is applied by a fundamental. Increasing the reliability in terms of technology spectrum frequence of analysis method for by applying the acquisition through the position of the frequency content and sources of traffic lights partial discharge of the acquisition of signal analysis to judge whether a way diagnosis the environment of the scene, and conditions. Partial discharge signal and make the discharge while building blocks were found through the Analysis. Spectrum frequence of Analysis and wide discharge part, to be more precise, in line with the various functions, including the analysis technique band. Diagnosis and comes up with advanced technology that can detect the presence of a position. This method is portable single device developed for maintenance and mobility and ease and convenience of getting caught by discharge of the pattern analysis and position detection method suitable for a new diagnosis will suggest.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2006년도 춘계학술대회논문집
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• pp.246-249
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• 2006

Finite element vibration analysis of the trial 5x5 partial fuel assembly in the still water was performed using the substructure method. ANSYS software was used as a finite element modeling and modal analysis tool. The calculated natural frequencies of the partial fuel assembly were more consistent with the experimental results for the identical test model compared to the much larger solid model. This modeling technique can be utilized for the fuel assembly dynamic behavior analysis under normal operation, seismic and loss-of-coolant-accident analysis.