• 식물분류학회지
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• 제40권1호
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• pp.71-73
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• 2010

인천광역시 옹진군 대청도에서 발견된 지치과 미기록속의 1분류군을 한반도 미기록종으로 보고한다. 이 분류군은 중국일대에 분포하는 것으로 알려진 Thyrocarpus glochidiatus Maximowicz로서, 한국명은 발견된 지역명을 따라 '대청지치'로 명명하였다. 이 분류군에 대한 형태적 특징을 기재하였고, 도해 및 생태 사진을 제시하였다.

• 식물분류학회지
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• 제47권2호
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• pp.119-123
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• 2017

A new unrecorded species, Hypodematium squamuloso-pilosum Ching (Hypodematiaceae), previously known only in China, was newly found on the rocks of a limestone mountain in Yeongwol-gun, Gangwondo, Korea. This taxon is distinguished from H. glanduloso-pilosum (Tagawa) Ohwi, reported as a species of Hypodematium in Korea based on linear lanceolate scales on the rhizome and a stipe base, white long hairs throughout the leaves, rarely reddish brown curly linear scales on the stipe, and oblong-lanceolate basal pinna. This taxon was most similar to H. hirsutum based on the plant height, rhizome, scale shape and size, sori position, and indusium shape. A new Korean name, 'Huin-geum-teol-go-sa-ri', was given based on the long white hair throughout. Descriptions and illustrations of this taxon and a photograph of its habitat are provided from Korea.

• 아동학회지
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• 제27권6호
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• pp.199-215
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• 2006

In this study of the documentation process, a toddler's behavior was interpreted through use of text and picture both of which are subjective representations of reality. Two teachers deconstructed and reconstructed their knowledge of a photographed toddler by first referring to scientific theories from a text. They used these theories to analyze markings drawn on paper by the toddler in the photograph. But, the theories from the text were transformed into a new theory in the documentation process of reflecting on the history of markings in different contexts. Thus, the semiotics of pictures and texts changed in addition to change in meanings. This demonstrates the variability of signs, as in the concept of "rhizome" (Deleuze and Guattari, 1999).

• 한국입자에어로졸학회지
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• 제9권1호
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• pp.1-6
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• 2013

New evaluation method for the particle size and morphology via change of ground particle during a grinding process was investigated. The grinding experiments were carried by a planetary ball mill. The relationship between the particle outline of the scanning electron microscopy photograph and measurement line, the measurement contact number was evaluated. The value of contact number decreased with the increase in the particle size of the ground sample, and varied with the experimental conditions. The value of contact number, which is related to the particle size of the raw sample, changed at the various experimental conditions.

• 한국기록관리학회지
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• 제8권1호
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• pp.257-274
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• 2008

본 연구에서는 사진작가 최민식의 다큐멘터리 사진기록물에 대한 정리와 기술에 필요한 요소들을 연구 조사하였다. 기록학의 정리와 기술에 관한 선행연구를 중심으로 내용을 파악하였으며, 파악된 내용을 중심으로 주요요소들에 관한 내용을 분석 수행하였다. 연구결과 행정기록물에서 보편적으로 적용할 수 있는 분류 체계는 적용되기는 어렵지만 한사람의 사진작가가 지속적으로 촬영한 기록물의 정리와 기술에 대한 사례로 제시할 수 있었다.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2012년도 제46차 하계학술발표논문집 20권2호
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• pp.301-302
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• 2012

본 논문에서는 웹 서버에 사진을 등록(upload)하면 서버에서 자동으로 사진의 메타데이터(EXIF)의 GPS정보를 추출하여 미리 정이된 정보와 비교하여 사진이 촬영된 장소를 표시하고, 좌표 값을 활용하여 구글 지도(google map)과 연계되는 방법을 제안한다. 사진등록으로 사용되는 서버 웹페이지로는 php를 사용하여 그림을 등록하고, exif_read_data함수를 사용하여 메타데이터에 접근하고 메타데이터 안의 GPS의 값을 추출하여 정의된 분류표에 의해 사진을 분류하고, 구글지도와 연계하여 촬영된 위치를 지도상에서도 확인할 수 있도록 하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 추계 학술논문 발표대회
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• pp.116-117
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• 2013

The various photo data has a lot of information that had produce by the process of construction project lifecycle. Therefore construction site images is very important for effective management of the photograph information to transmit of accurate object information included in photography data. So the purpose of the study is to make application direction of intelligent image information that had image information in tandem with information of 5W1H for effective management of sites image in construction and maintenance phase.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제53권6호
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• pp.316-323
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• 2004

HTS transformer is one of the most promising devices to supply enough electric energy for quick increase consumption. However, for practical design of the HTS transformer, it is necessary to establish the research on breakdown, V-t characteristics, degradation, and so on. In this paper, we discussed breakdown characteristics and V-t characteristics of polyimide/L$N_2$ and glass fiber reinforced plastic/$LN_2$ composite insulations. These composite insulations have been used as turn-to-turn and layer-to-layer insulations for HTS transformer respectively, Moreover, we investigated the degradation of these insulation samples after breakdown using microscope and SEM photograph.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 추계학술대회 논문집 전기물성,응용부문
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• pp.3-8
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• 2004

The Pulse Width Modulation (PWM) Inverter plays an important role in express locomotive. Especially after traction motors are fed by fast switching inverters, the interturn insulation is destroyed more heavily. However, a new type of polyimide corona resistant film is developed and used in insulation of traction motors. In order to investigate the service life of this kind of traction motor, the mechanism and characteristics of dielectric breakdown of polyimide corona resistant are studied in the paper. Experiments have been carried out on specimen according to the condition of traction motor. The breakdown point of tested sample film is analyzed through energy spectrum analysis and electron microscopic photograph. At last, it is presented that the characteristics and mechanism of breakdown of polyimide corona resistance film.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.254-255
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• 2007

This paper describes underwater discharge phenomena which are less studied than gas, solid and dielectric liquid. Since discharge phenomena were affected by various factors, we investigated the effect of water resistivity in point-plane gap by impulse voltage. In discharge photograph, it is hard to discover the streamer development in positive polarity at high reisistivity. On the other hand, the streamer originated at the tip of rod and developed toward the plane with increasing voltage. It is found that the breakdown voltage of both polarities in lower resistivity are lower than that of high resistivity. High current flowing in lower resistivity before the breakdown induce more streamer and enhance the probability of breakdown.