• Journal of Korean Vacuum Science & Technology
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• 제4권3호
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• pp.78-80
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• 2000

We reprot on the fabrication and characterization of InGaN/GaN multiple quantum well light-emitting diode (LED) with a highly transparent Pt ohmic contact as a current spreading layer. The value of light transmittance of a Pt thin film with a thickness of 8 nm on-GaN was measured to be 85% at 450 nm. The peak wavelength and the full-width at half-maximum (FWHM) of the emission spectrum of the LED at 20 mA were 453 nm and 23 nm, respectively. Pt-contacted LEDs show good electrical properties and high light-output efficiency compared to Ni/Au-contacted ones. These results suggest that a Pt thin film can be used as an effective current spreading layer with high light-transparency.

• 한국동물학회지
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• 제23권3호
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• pp.125-136
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• 1980

노랑초파리 (Drosophila melanogaster) Oregon-R strain과 Kwangju strain에서 발생단계에 EK라 합성되는 효소의 양상은 다음과 같다. 1. Oregon-R strain 및 Kwangju strain의 발생 4단계에 따른 ADH isozyme pattern은 알에서 ADH 2, ADH 3, ADH 4가 나타났고, 유충 번데기 및 성충에서는 ADH 1, ADH 2, ADH 3, ADH 4, ADH 5가 모두 나타났다. 2. ADH isozyme의 단백질을 분석하여 보면 양극 방향으로 이동한 ADH 3, ADH 4, ADH 5가 대부분을 차지하고 음극 방향으로 이동한 ADH 1, ADH 2는 적은 비율로 나타났다. 한편 유충 번데기 및 성충에서 ADH 3은 Oregon-R strain과 Kwangju strain에서 가장 큰 비율로 나타나지만, ADH 4에 대해서는 Kwangju Strain이 Oregon-R strain 보다 훨씬 낮은 비율로 나타나는 것이 특이하였다. 3. 활성은 앞에서 가장 낮고 유충에서 높아지고 번데기에서 낮아서 성충에서 제일 높게 나타났다. Strain 별에서도 모든 발생단계에서 Kwangju strain이 Oregon-R strain보다 높게 나타났다. 이것을 활경요소에 의하여 변화될수 있는 것으로 추정된다.

• 사상체질의학회지
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• 제17권3호
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• pp.156-162
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• 2005

1. Objectives The purpose of this study is to evaluate the effects of Sasang constitutional medical diagnosis and treatment on Taeumin's Hangueol syndrome, probably caused by Iatrogenic Adrenal Insufficiency. 2. Methods The subject is a 75 years old woman who has a severe chilling symptom without fever, probably caused by Iatrogenic Adrenal Insufficiency, and we had diagnosed her syndrome as Taeumin's Hangueol syndrome and prescribed Sasang Constitutional Medicine. 3. Results The scale of chilling symptom has been reduced. 4. Conclusions This case study shows an effcient results by using Sasang Constitutional Medicine in treatment of Taeumin's chilling syndrome.

• The Plant Pathology Journal
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• 제15권1호
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• pp.72-75
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• 1999

A scab disease occurred on watermelon seedlings by the infection of Cladosporium cucumberinum. This is the first report demonstrating the scab disease on watermelon in Korea. The casual agent attacked all plant parts of the seedlings on the ground. Infection sites were initiated with sunken and dark green spots, and then suddenly developed to large lesions softened with gummy substances. When hypocotyl and leaf stalk of seedlings were infected and softened, upper parts of seedlings were brokin down, dried and eventually died. Conidiophores of the fungus were characterized by pale olivaceous brown color, and variable length of about 3-5 mm in width. Conidia were formed I long branched chains, and conidium was ellipsoidal, fusiform or subspherical single cell mostly without septum. Morphological characteristics of the fungus were almost identical to Cladosporium cucumerinum Ellis & Authur. The fungus was also pathogenic to cucumber, squash and oriental melon, suggesting that it is a common pathogen to cucurbits. However, the fungus was not pathogenic to bottle gourd.

• 한국가정과학회지
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• 제4권2호
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• pp.48-67
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• 2001

The purpose of this study is both to describe and to explain the shapes and the changes of Kwangju women's productive activities from the middle of 1950's to the end of 1990's. Productive activities in this study include wage labors as well as economic activities in informal labor sector and domestic labor. Three factors - economic structure, the family, and women's consciousness - are drawn to explain women's work in Kwangju. The period from the middle of 1950's to the end of 1990's has been divided into 5 stages and the characteristics of women's work at each stage are as follows : Kwangju women during 1950's worked hard and contributed to the family economy not only inside but also outside the family : during the second stage from 1960's to 1970's, they accomplished not only the traditional women's role but also industrial wage worker : the third period of the first half of 1980's was the time for the development of social consciousness : the fourth period from the end of 1980's to the beginning of 1990's was the time when women tried to solve their problems by themselves: during the last period from the middle of 1990's to the end of 1990's. Kwangiu women wanted to establish their identities in the independent area from their families.

• 대한공간정보학회지
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• 제12권3호
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• pp.43-50
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• 2004

본 연구에서 교통수요 예측기법 중 통행량 분포기법의 이론적 배경에 대하여 광주광역시를 중심으로 컴퓨터 시뮬레이션을 통하여 분석 평가하고 모형에 내재되어 있는 매개변수의 특성변화를 연구하여 통행량 분포모형의 적용 타당성을 찾고자 하는데 연구의 목적이 있다. 본 연구에서는 통행분포모형의 정립을 목적으로 광주시의 20개 대존 중에서 도심지역에 해당되는 9개 존을 중심으로 한 통행목적별, 수단별, 출발 도착통행량 모형을 정립하였다. 여기에서는 기준 년도를 1996년으로 하고 2001년까지의 통행량을 분석하고 2008년도까지의 통행분포량을 예측하였다.

• 한국치위생학회지
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• 제21권5호
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• pp.645-653
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• 2021

Objectives: This study aimed to offer basic resources needed to solve conflicts and problems of communication among dental hygienists working in dental clinics by comprehending and analyzing their in-depth communication experiences. Methods: Individual depth interviews were conducted with 10 dental hygienists who had over one year of clinical experience and worked in dental clinics in Gwangju, from September 16 to October 15, 2020. Colaizzi's phenomenological analysis was performed. Results: The results of the interviews were grouped into four central categories: lack of communication due to differences in position, relationships they want to avoid, return to joint work, beginning of new communication. The participants of this study experienced difficulties in communicating with dental hygienists in the clinical field, but they overcame the conflicts by trying to understand others by putting themselves in others' shoes. Conclusions: This study is expected to contribute to providing good quality medical services to patients by promoting effective communication among dental hygienists.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2003년도 추계학술대회 논문집
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• pp.400-401
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• 2003

Atmospheric fine aerosol particles play an important role in controlling a number of atmospheric processes, such as the deposition of different compounds, the optical properties etc. (Molnar et al., 1999). In this report, water-soluble species of PM$_{2.5}$ obtained from simultaneous measurements at four Asia sites (Beijng (39.56$^{\circ}$N, 116.17$^{\circ}$E), China; Gwangju (35.10$^{\circ}$N, 126.53$^{\circ}$E), South Korea; Kyoto (35.01$^{\circ}$N, 135.44$^{\circ}$E), Japan; and Ulan-Bator (47.55$^{\circ}$N, 106.52$^{\circ}$E), Mongolia) during the periods of 14-22 August, 30 October-06 November 2000, 14-21 January 2001, 23 July-02 August and 05-16 November 2002, within the framework of an APN (The Asia-Pacific Network for Global Change Research) project are reported. Ion components in 23 July-02 August 2002 were not obtained because of the technical problem of equipments.s.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 B
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• pp.598-600
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• 2002

The magnet design is investigated by using the topology optimization and FEM. The design sensitivity equation for topology optimization is derived using the adjoint variable method and the continuum approach. The proposed method is applied to the topology optimization of C-core.

• 한국자기학회:학술대회 개요집
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• 한국자기학회 2003년도 somma/kms meeting
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• pp.82-82
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• 2003