• Proceedings of the Korean Information Science Society Conference
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• 2000.04b
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• pp.574-576
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• 2000

디지털 영상 처리에서 사람 얼굴 인식은 여러 응용 분야에 요구되어 활발한 연구가 진행되어 왔다. 본 논문에서는 얼굴이 있는 칼라 영상에서 얼굴 영역을 자동으로 추출하기 위한 알고리즘을 기술한다. 영상에 있는 얼굴 및 복잡한 배경과 다른 구성 성분들을 분류시켜 표현할 수 있도록 하기 위해 다변수 히스토그램 기법을 이용하여 얼굴 후보 영역과 머리 후보영역을 추출하고, 머리와 얼굴 후보 영역들간의 상관관계를 고려하여 최종 얼굴 영역을 검출한다. 본 논문에서 제안된 방법의 성능을 검증하기 위하여 인터넷상에 있는 128개의 영상을 입력 데이터로 실험한 결과, 인식 시간이 빠르고 영상의 배경에도 강건한(robust) 효율적인 방법임을 알 수 있었다.

• Microbiology and Biotechnology Letters
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• v.24 no.2
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• pp.160-165
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• 1996

An alkalophilic bacterium producing alkaline protease(s) was isolated from soil. It was a Gram-positive, non-sporulating, immotile, irregular rod, strictly aerobic, and weak acid-forming bacterium. The morphological, physiological, and biochemical characteristics of the isolate resembled those of the Coryneform bacteria. However, there was not any species within this genera to which this microorganism can be closely matched. Therefore, it is provisionally identified as a Coryneform bacterium TU-19.

• The Korean Journal of Rheology
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• v.7 no.2
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• pp.101-109
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• 1995

아주작은 Reynolds수 조건하의 나선형 미세입자가 갖는 저항 및 이동계수를 계산하 는 일반적인 방법을 논하였다. 이러한 문제의 해를 구하기 위해서는 입자의 중심선을 따라 분포되어 있는 stokeslet으로 수식화된 유동장을 필요로 한다. 입자에 작용하는 수동력학적 힘과 토오크는 이러한 stokeslet의 적분에 의하여 구할 수 있는데 유동특성에 따라 2계 이상 의 텐서에 비례한다. Johnson에 의하여 유도된 적분방정식은 LU-분해법을 사용하여 해를 구하였다. 해석 결과의 정확성은 침상체를 모델로 하여 Brenner의 엄밀해와 비교하였으며, 일치된 결과를 얻었다.

• Journal of Biomedical Engineering Research
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• v.10 no.1
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• pp.17-24
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• 1989

This papaer presents a new algorithm for the P-wave detection in the ECG signal. Digital differentiation method (7-point derivative) is used for detecting P-waves exactly. This algorithm can detect various parameters of PR, PP, RR interval, which are important to diagnosis AV blocks and WPW syndrome. Especially, this algorithm can detect P-waves very efficiently not only in well-preprocessed waves but in pccr waves with noise and artifact. And it enables to develope more reliable automatic diagnosis algorithm.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1977.06a
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• pp.8.2-8
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• 1977

There are in many instances emergent cases in traumatic lesions of neck, which require emergency treatment for life saving. The authors experienced a case of multiple lacerations including anterior neck, both forearms and abdomen, that have psychological problems. This is the report of this case along with literature survey.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10a
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• pp.138-140
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• 1999

분류기법은 과거데이터를 분석하여 새로운 데이터에 대한 예측에 사용되며, 결정트리 알고리즘을 많이 사용한다. 따라서, 이 기법은 전자상거래에서 DB 마케팅을 위해 데이터베이스에 저장되어 있는 고객데이터를 분석하여 암시적인 고객들의 행위규칙을 찾고, 예측하기 위하여 사용할 수 있다. 기존의 분류알고리즘들은 전자상거래에서 일반적인 연속형 고객데이터를 처리하는데는 많은 문제점을 가지고 있다. 이러한 문제를 해결하기 위하여 연속형 데이터를 범주형 데이터로 변환하는 알고리즘을 구현하였다. 이 논문은 전자상거래에 적용하기 위한 고객분류기로서 ID3 알고리즘에 1차원 클러스터링알고리즘을 결합하여 사용한다.

• Resources Recycling
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• v.7 no.2
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• pp.39-45
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• 1998

We smelted thc pellets made by mixing the distilled carbon from wlISte Lires, LD converter dust and slag with reduction process in the revcrberatory furnace. Thc obtained results are as follows 1) The removal mte of zinc appears above 97% after T reducing the pellets at $1300^{\circ}C$ for Ihr and the zinc content in the residue are 0.1~D.2%. 2) Under the mixing condition of 500 g LD dust. 150-200 g LD slag and 30-50 g distilled carbon of waste lires the removal raho of zinc shows above 95%, while t the 50-60% Fe remains in the residue. 3) After smelting at $1350^{\circ}C$ for 3hrs, the recovery ratio of pig iron reduced from lhe p pellets containing 15-20% LD slag and 4.1-7.2% distilled carbon of waste tires appears in the range of 89.3-92%. 4) Tbe c chemical composition of the recovered pig iron is 1.7%C, O.05%P, 0.05%S and balance Fe. 5) Tbe recovered dust from the d dust collcctor alter finishing the reduction rcaction appears as a crude zinc oxide conLaining 60% zinc.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2007.04a
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• pp.37-42
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• 2007

A network of MAC type was constructed in the Gyeonggi-do area to analyze the usefulness and validity of the Network RTK-GPS. Six sites were selected to conduct GPS observation for 24 hours, and by determining the ITRF of each site, coordinates were determined in connection with IGS network. Then check points which were established in Gimpo area were observed at least 7 times by Network RTK at 20 secs of retrieval intervals. The result showed high accuracy in the difference between the coordinates determined immediately by the in-field network survey and the current performance was 1-2cm. Its biggest benefit is the expanded range of survey and efficiency of practice. In summary, it is proved that a network survey has the accuracy, scalability and efficiency and it is expected that the network survey will contribute to the cadastral survey.

• Proceedings of the KOSOMBE Conference
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• v.1991 no.05
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• pp.51-55
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• 1991

This paper describes an algorithm of pattern analysis of ECG signals by significant points extraction method. The significant points can be extracted by modified zerocrossing method, which method determines the real significant point among the significant point candidates by zerocrossing method and slope rate of left side and right side. This modified zerocrossing method improves the accuracy of detection of real significant point position. This paper also describes the pattern matching algorithm by a hierarchical AND/OR graph of ECG signals. The decomposition of ECG signals by a hierarchical AND/OR graph can make the pattern matching process easy and fast. Furthermore the pattern matching to the significant points reduces the processing time of ECG analysis.

• MALSORI
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• no.50
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• pp.1-22
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• 2004

The aim of this paper is to show what are the sociolinguistic variables of word-initial length loss in Seoul dialect. 350 people were inquired to pronounce 40 words. Among the informants, 152 were male, and 198 were female. In terms of their age, 49 were twenties, 70 were thirties, 69 were forties, 71 were fifties, and 91 were above sixties. According to our statistics, 18 words show sociolinguistic variation by age, and sex was not a variable. So we can conclude that Seoul dialect is undergoing length loss by age at least. But we need to enlarge the number of words and informants and we also need to adopt other variables like social level, education etc for better understanding of Seoul dialect.