• 한국수자원학회논문집
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• 제40권4호
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• pp.287-297
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• 2007

DEM을 이용하여 국부경사와 기여면적 사이의 규모에 따른 거동특성을 조사하여 면적한계기준과 경사-면적한계 기준이 상호보완적인 형태의 수로망 추적절차를 제시하였다. 상기방법과 현장자료에 대한 적용을 통하여 유역의 경사는 공간적으로 대규모의 산포경향을 갖는 지형인자임을 확인할 수 있었다. 양자의 규모에 따른 거동특성권역에 따라 지면의 형상은 발산지형과 수렴지형으로 분류될 수 있었다. 본 연구에서 제시한 수로망 동정 절차를 설마천 시험 유역에 대하여 수행한 결과 유역의 동적 거동을 확인할 수 있었다. 또한 이로부터 지형도를 이용한 수작업에 기초한 방법에 비하여 하천두부의 거동과 수로망의 동적특성을 잘 표현하고 있음을 볼 수 있었다.

• 한국치위생학회지
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• 제12권2호
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• pp.275-284
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• 2012

Objectives : The purpose of this study was to examine the oral health behavior of shipbuilding company workers in some regions in a bid to provide information on the oral health plans for industrial fields. Methods : The subjects in this study were 310 workers in 10 shipbuilding companies and suppliers in Jeolla Namdo Province, on whom a self-administered survey was conducted. Results : 1. Concerning general information about the subjects who participated in the research, gender was possessed 94.8% by men and 5.2% by women. Age was the largest in 31~40 years old with 44.2%. Marital status was the largest in the married with 64.5%. It was the largest in under high school graduate with 71.9% for academic background, in 2,000,000 won~3,000,000 won with 49.0% for monthly family income, and in cooking with 33.9% for work field. 2. Research subjects' toothbrushing time was indicated to be the largest in after having breakfast. It was indicated to be twice a day with 41.3% for toothbrushing frequency. 90.3% of the respondents are not using auxiliary oral hygiene devices. 3. Recognition on periodontal health status was found larger in workers whose response was that their own periodontal health status is 'healthy' than workers who responded that their status is 'not healthy.' Workers, who don't have subjective symptom on periodontal status, were indicated to be larger. 4. Ratio of subjects with tooth scaling experience accounted for 59.7%. The ratio of tooth scaling experience was indicated to be different depending on academic background and monthly family income. Conclusions : Academic credential, monthly family income and the line of work were identified as the main factors to affect oral health care of the shipbuilding workers. Oral health education and dynamic implementation of corporate oral health promotion which are designed to meet the needs of workers are required.

• 대한한의학회지
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• 제21권4호
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• pp.204-215
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• 2000

Objectives: This study was conducted to establish the study form of atopic dermatitis in oriental medicine, to find out the effect of herbal medicine and to compare Bangpungtongsungsan group with symptom-complexes prescription group. Methods: We gave scores(1-3) to the 37 outpatients who visited the dept. of Ophthalmotolaryngology & Dermatosurgery of the Kyunghee Oriental Medical Center from June 1,2000 to September 30, 2000. According to transformed the G. Rajka, T. Langeland and Jon M. Hanifin standard. We checked the Eosinophil count, IgE and the scores (intensity: the degree of itching, course: the degree of itching during a year, extent: erythema, lichenification, scaling. dryness, erosion' oozing). After herbal treatment for 6 weeks, we checked the above factors again in the same way. In treatment, we divided the patients into Bangpungtongsungsan group and Symptom-complexes group for cross-comparison. Results: There were 19 patients we could check by score and 14 patients by laboratory. 1. In the 14 lab cases, the number of abnormal value of Eosinophil count and IgE was decreased but it was not significant. 2. In the 19 cases by score, clinical severity of the intensity of itching, lichenification, scaling' dryness was significantly decreased between the before- and after-herbal treatment periods (P<0.01, P<0.01, P<0.05). 3. In 19 cases, clinical severity of erythema, erosion. oozing was decreased after herbal treatment but it was not significant(p>0.05). 4. In point of total score, clinical severity of atopic dermatitis was significantly decreased after herbal treatment(p<0.01). 5. There was no significant difference between Bangpungtongsungsan group and Symptom-complexes group(P<0.05). Conclusions: Although more study is needed, these results indicate that herbal treatment is effective on atopic dermatitis.

• Ocean and Polar Research
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• 제32권1호
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• pp.1-13
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• 2010

To assess short-term variation of summer phytoplankton community structure in different water masses, phytoplankton and environmental factors were monitored from 31 stations on and off the southern coasts of Korea, from June 18 to June 20 2009. According to multidimensional scaling (MDS) and cluster analysis based on phytoplankton community data from each station, the southern sea was divided into two groups. The first group included stations in the south-eastern region of Jeju Island, which is strongly influenced by the Kuroshio warm current. The second group located along the coastal region of the southern sea, which was mainly comprised of Bacillariophyceae and Crytophyceae. Of these stations, St. 13 and 28 formed a temperature front caused by different hydrological conditions. In particular, nutrients and Chl.a concentrations in these two stations were significantly higher compared to those in the other stations. This indicates that phytoplankton population and subsequent microalgal growth under high nutrient concentrations vary in different water masses. Our results support the theory that phytoplankton community structure in the southern sea of Korea can be influenced on a short-term scale by different water masses and currents.

• 한국콘텐츠학회논문지
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• 제13권5호
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• pp.295-302
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• 2013

치과진료실내에서 감염관리의 주체가 되는 예비 치과위생사인 치위생과 학생들을 대상으로 치면세마 실습 시 감염관리에 대한 인식태도 실천을 조사하여 학교에서부터 감염관리에 대한 지식도와 실천도가 어느 정도 지켜지고 있는지 분석하여 학교에서의 감염관리를 엄격히 하고 나아가 이를 토대로 치과 진료실에서의 감염관리 실천을 적용할 수 있도록 하는데 본 연구의 목적이 있다. 현재 감염방지 예방에 대한 현황에 대한 결과 먼저 b형 간염 예방 접종 여부에 대해서는 전체 불이행이 55.0%, 이행 45.0%의 순으로 나타났고, 치면세마 실습 시 환자내원 시 전신질환 문진 여부에 대해서는 이행이 88.6%로 나타났으며, 감염방지 교육여부에 대한 결과는 91.6%가 이행하고 있어 예방적인 측면도 대부분 잘 이행하고 있는 것으로 나타났다.

• The Korean Journal of Physiology and Pharmacology
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• 제15권6호
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• pp.371-382
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• 2011

We performed experiments using Aplysia neurons to identify the mechanism underlying the changes in the firing patterns in response to temperature changes. When the temperature was gradually increased from $11^{\circ}C$ to $31^{\circ}C$ the firing patterns changed sequentially from the silent state to beating, doublets, beating-chaos, bursting-chaos, square-wave bursting, and bursting-oscillation patterns. When the temperature was decreased over the same temperature range, these sequential changes in the firing patterns reappeared in reverse order. To simulate this entire range of spiking patterns we modified nonlinear differential equations that Chay and Lee made using temperature-dependent scaling factors. To refine the equations, we also analyzed the spike pattern changes in the presence of potassium channel blockers. Based on the solutions of these equations and potassium channel blocker experiments, we found that, as temperature increases, the maximum value of the potassium channel relaxation time constant, ${\tau}_n(t)$ increases, but the maximum value of the probabilities of openings for activation of the potassium channels, n(t) decreases. Accordingly, the voltage-dependent potassium current is likely to play a leading role in the temperature-dependent changes in the firing patterns in Aplysia neurons.

• 보건교육건강증진학회지
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• 제24권1호
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• pp.93-108
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• 2007

Background: School is a primary health education setting for children and the continuous support should be provided to renew school health education curriculum correspondent to socio-cultural changes in Korean society. Objectives: This study was conducted to identify the principals' and teachers' needs of health education topics for their students and to analyze their conceptual map for health education curriculum in Korean elementary school. Methods: The sample size of the first survey was 179 and that of the second survey was 691 of elementary school principals and teachers from stratified sampling over Korea. The self-administered mailing survey was conducted to o identify the factor structure of the health education topics and to analyze the conceptual properties with exploratory factor analysis and multidimensional scaling analysis in SPSS 12.0. Results: A total of 21 health education topics were collected from the first survey and 31 topics were, comprehensively, generated for the second survey. The five factors were determined: 'life health promotion behavior,' 'drug control and mental health,' 'bulling and aggression prevention,' 'safety perception and injury prevention,' and 'sex education and sexual harassment.' The educational need scores were the highest in 'safety perception and injury prevention.' The two-dimensional cooperates were generated for the 31 health education topics and the two dimensional properties which divided the conceptual space were 'health-safety' for one and 'public/environmental-individual/personal' for the other. Conclusions: Health education curriculum and textbook should be developed considering teachers' needs and conditions for health education in school fields. The field-based health education programs or textbook would make more possible problem-solving health education for children in real school fields.

• 한국멀티미디어학회논문지
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• 제13권1호
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• pp.30-37
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• 2010

최근 많은 임베디드 실시간 시스템에 동적 전압 조절(Dynamic Voltage Scaling: DVS)을 지원하는 프로세서를 사용하고 있다. 이런 시스템의 설계 및 동작의 최적화를 위한 중요한 요소 중 하나가 전력(power)이다. 동적 전압 조절을 지원하는 프로세서의 슬로우다운을 이용함으로서 많은 소비 전력을 절약할 수 있다. 본 논문에서는 태스크의 동기화가 필요한 임베디드 실시간 시스템에서 효율적인 전력 소비를 위해 태스크들의 슬로우다운 값을 구하는 기존 알고리즘을 시간복잡도 측면에서 개선하였다. 시간복잡도 $O(n^{2})$인 기존 알고리즘을 수학적인 분석 및 시뮬레이션을 통하여 그 성질을 파악하고, 그 성질을 이용하여 기존 알고리즘과 같은 성능을 가지는 시간복잡도가 O(nlogn) 및 O(n)인 개선된 알고리즘들을 제안하였다.

• 한국습지학회지
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• 제14권4호
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• pp.457-469
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• 2012

우리나라 서해 근해역 4개지역의 해저표면형상 자료를 분석하였다. 우리나라 서해안은 조차가 클 뿐 아니라 파랑 또한 상당히 크며, 해저질의 입도가 약 1.2 ~ 1.6 ${\varnothing}$의 분포로 상대적으로 입경이 큰 사질의 형태이다. 자료를 취한 해역에서의 수심은 10 ~ 65 meters로서 해저면의 표면형상이 잘 발달해 있는 편이며, 해저표면형상에서 모래결 길이(ripple length)는 약 6 ~ 13 meters 범위이다. 기존의 모래결 길이를 예측할 수 있는 예측식 중 파랑과 흐름이 공존할 때에 적용할 수 있는 예측식으로는 Khelifa and Ouellet 과 Soulsby 가 있다. 조사한 모래결 길이를 이 두 식으로 예측한 결과 두 식 모두 실제 측정값보다 작은 값을 나타내었다. 이는 기존의 두 예측식이 우리나라 서해안과는 다른 해역에서 구한 자료로부터 얻은 식이거나 실험실에서 얻어졌기 때문으로 판단된다. 기존의 예측식에 일정한 보정계수를 곱하여 수정한 결과 우리나라 서해안에서 관측한 모래결 길이를 잘 표현할 수 있게 되었다.

• 한국치위생학회지
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• 제18권5호
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• pp.665-674
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• 2018

Objective: The purpose of this study was to reduce the burden on dental hygienists in performing dental hygiene processes in the clinic. This study systematically analyzed dental hygiene problems and dental hygiene planning according to the oral condition of patients by applying an oral health care program based on the dental hygiene process. Methods: This study analyzed influential factors of 17 dental hygiene problems and 12 dental hygiene plans according to the oral health index and charts of 185 patients. This study was approved by the Institutional Review Board (IRB No. 1041449-201801-HR-003) of Silla University. The frequency of dental hygiene problems and dental hygiene planning was analyzed and correlations among the oral health index, dental hygiene problems, and dental hygiene planning were analyzed. Results: The higher the bleeding on probing score was, the more scaling was planned. The higher the calculus rate was, the more air-jet and jaw joint disorder prevention education was planned. The higher the O'Leary index was, the more dietary education and air-jet was planned. The higher the Simplified Oral Hygiene Index was, the more air-jet and jaw joint disorder prevention education was planned. The higher the Periodontal Screening and Recording index was, the more scaling and professional tooth cleaning was planned (p<0.05). Conclusions: The burden of oral preventive duties on dental hygienists will be minimized by systematically establishing problems and planning of dental hygiene according to patients' oral health index scores. Therefore, it is expected that dental hygienist can actively use the dental hygiene process in oral health care programs.