• Title/Summary/Keyword: AE index

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Development of Prediction Technique for Future Vegetation Information Using NOAA AVHRR Image and Weather Data Based on Climate Change Scenario (NOAA AVHRR 위성영상과 기후변화 시나리오에 의한 기상자료를 이용한 미래 식생정보 예측 기법 개발)

  • Ha, Rim;Shin, Hyung-Jin;Park, Geun-Ae;Kim, Seong-Joon
    • 한국공간정보시스템학회:학술대회논문집
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    • 2007.06a
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    • pp.162-168
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    • 2007
  • 기후변화는 강수유형, 기온상승과 일사량의 변화로 인한 증발산량의 변화, 유역 식생피복변화로 인한 지표-대기 관계의 변화와 같은 현상을 통해 지역 부존 수자원과 유출량에 큰 변화를 가져올 수 있다. 특히 지표면의 76%를 차지하고 있는 식생피복은 지표와 대기 사이의 물 순환과정에서 중요한 인자이다. 본 연구에서는 넓은 지역에 대한 식생피복의 파악이 용이한 NOAA 위성의 AVHRR (Advanced Very High Resolution Radiometer) 센서로부터 얻을 수 있는 정규화 식생지수 (Normalized Difference Vegetation Index, NDVI)를 통하여 현 식생정보를 정량화하였다. 이로부터 토지피복별 NDVI와 기상인자(기온, 강수량, 일조시간, 풍속, 습도) 사이의 상관관계를 분석하고, 이를 기후변화 시나리오에 의한 기상인자로 부터 토지피복에 따른 미래 NDVI를 추정하였다.

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Long-term variation of total electron contents over Daejeon measured from Global Positioning System between 2000 and 2010

  • Lee, Chi-Na;Chung, Jong-Kyun
    • Bulletin of the Korean Space Science Society
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    • 2011.04a
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    • pp.27.1-27.1
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    • 2011
  • This study is about the ionospheric variation on the Korean Peninsula using GPS TEC data from Daejeon IGS GPS site. It has accumulated the 11 years GPS data from 2000. In this work, the hourly and daily averaged TEC data are used. Data period covers a full solar cycle from 2000 to 2010 (11 years) which the total observed days are 98%. The mean TEC data shows the annual/semiannual variation, solar cycle and 27 days. GPS TEC has a good correlation with solar F10.7 index. We also compare with planetary Kp and AE indices. The maximum of the daily mean GPS TEC is around 50 TECU at 2000 and that value of 2009 is near 10 TECU. we confirms that the GPS TEC is a good indicator for ionospheric variation for the mid-latitudinal region to understand the ionospheric climatology over Korea Peninsula.

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Relationships among Mother's Thinking Styles, Stress Coping Styles, and Child-Rearing Stress (어머니의 사고양식, 스트레스 대처방식과 양육 스트레스와의 관계)

  • Park, Jin Sung;Shin, Hyun Jung;Park, Ae Soon
    • Korean Journal of Child Studies
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    • v.29 no.3
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    • pp.55-72
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    • 2008
  • This study investigated how mother's thinking styles are represented and researched relationships between their thinking styles, their stress coping styles, and child-rearing stress. Subjects were 254 mothers of children attending child care centers and kindergartens. Instruments were the Thinking Styles Questionnaire Short Version (Sternberg & Wagner, 1991), Parenting Stress Index/Short Form (Abidin, 1990), and the Way of Coping Checklist (Lazarus & Folkman, 1984) Data were analyzed by MANOVA, Pearson's correlation, and regression. Results showed more educated mothers had legislative and internal thinking styles, and mothers employed outside the home had hierarchical, internal, and liberal thinking styles. Varieties of maternal thinking styles were related to parental distress, to parent-child dysfunctional interaction and to child's difficult temperament.

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Analysis of Vegetation on the Pavements and under the Street Trees in Seoul (서울市 步道와 街路樹밑의 植生에 관한 分析)

  • Chang, Nam-Kee;Kim, Eun-Ae
    • The Korean Journal of Ecology
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    • v.13 no.4
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    • pp.331-342
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    • 1990
  • Analysis of vegetation on the pavements and under the trees of streets in Seoul city were investigated from July to November 1989. All of the vascular herbs were 9 orders, 13 families, 30 genera, 37 species and 1 forma. Species diversity and evenness index were higher on the pavements than under the trees of streets. Eragrostis multicaulis with C-4 pathway was a dominant species, and next orders of importace values were Eleusine indica(C-4), Digitaria sanguinalis(C-4), Taraxacum officinale(C-3) and Erigeron annus(C-3). On the pavements and under the trees of streets, light intensity and surface temperature were very high, Also, these sites were affected by many kinds of human interferences. Therefore, it was an example of adaptation to specific ecological environments that C-4 plats were more dominant than C-3, growth forms of C-3 plants were rosette or prostrate, and annual or biennial plants were distributed in these studied sites. Generally, fruits types were grains, achens and capsules. Seeds were very small and some had appendages such as pappus.

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A Case Report of Psoriasis Treated by Osuyu-tang Based on Shanghanlun (상한론에 근거하여 오수유탕을 이용하여 호전된 건선 치험 1례)

  • Lee, Sung-Jun;Seo, Hee-ae;Lee, Soong-In
    • Herbal Formula Science
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    • v.24 no.1
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    • pp.53-61
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    • 2016
  • Objective The object of this case report is to evaluate the possibility of utilizing Osuyu-tang as a new therapy of psoriasis.Method Diagnosis and Psoriasis' progress was evaluated based on the patient's chart and picture. Diagnosis based on Sanghanlun was organized by graph. The severity of psoriasis' progress was evaluated by Psoriasis Area Severity Index(PASI) and visually analyzed through picture.Results On PASI and picture, we could confirm psoriasis’s area was decreased from hairline to middle of forehead and redness, thickness, scale of psoriasis also got better.Conclusion Osuyu-tang is efficient to patient of this case report as a treatment.

A Case Report about Obese Child (소아 비만 치험 1례 보고)

  • Jung, Sun-Kyung;Yu, Sun-Ae;Lee, Seung-Yeon
    • The Journal of Pediatrics of Korean Medicine
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    • v.25 no.2
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    • pp.94-101
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    • 2011
  • Objectives: The childhood obesity causes not only physical problems but also psychosocial ones, thus making it difficult to treat than adult obesity. To prove this, study was performed to examine an obese child who was on an oriental medical treatment. Methods: This study was based on the obese child, visited the oriental medical center from March 13th, 2010 to December 22th, 2010. The patient has taken herbal medicine, moxibution, low frequency acupuncture, auricular therapy, and behavior modification. Results: While the patient was treated, his Body weight, Body Mass Index, Fat percents were reduced and the effect lingered for five more months since the treatment. Conclusions: This study shows that herbal medicine is effective on developmental disorder induced. However, further clinical studies are needed.

Assessment of Soil Moisture for a Soyanggang Dam Watershed using SWAT and MODIS Satellite Image (SWAT모형과 MODIS위성영상을 이용한 소양강댐 유역의 토양수분 평가)

  • Park, Geun-Ae;Hong, Woo-Yong;Jung, In-Kyun;Lee, Mi-Seon;Kim, Seong-Joon
    • Proceedings of the Korea Water Resources Association Conference
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    • 2010.05a
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    • pp.1466-1470
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    • 2010
  • 토양수분은 지표의 다양한 과정을 통제하는 중요한 수문학적 변수며 이에 신뢰할 수 있는 토양수분의 정보를 습득하는 것은 매우 중요하다. 그러나 정확한 토양수분의 실측자료는 그 설치비용과 인력부족으로 매우 빈약하여 이를 대체할 만한 정보를 획득하기 위한 연구 또한 부족하다. 요즘, 많은 수문모형의 개발로 토양 수분 또한 결과물로써 많이 이용된다. 그러나 모형에서 모의된 토양수분의 신뢰성을 판단할 때는 실측자료를 이용하는 것이 가장 이상적이나, 토양수분의 실측값이 부족하므로, 유역의 토양수분 실측자료 대신 모의된 토양수분을 적용할 필요가 있다. 이에 따라 본 연구에서는 우리나라 소양강댐 유역에 대하여 SWAT(Soil and Water Assessment Tool) 모형을 이용하여 실측 토양수분자료를 최대한 활용함으로써 토양수분을 모의하였다. 또한 모의된 토양수분을 Terra MODIS NDVI(Normalized Difference Vegetation Index)와 LST(Land Surface Temperature)과의 상관성을 계절별, 월별로 분석하여 그 관계식을 도출하고자 하였다.

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The Difference of Socio-demographic Variables and Health-related Behaviors among Groups of Body Mass Index (여성의 BMI에 따른 인구사회학적 특성 및 건강행동 특성비교)

  • Sohn, Ae-Ree;Jin, Ki-Young
    • Korean Journal of Health Education and Promotion
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    • v.25 no.4
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    • pp.1-11
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    • 2008
  • The purpose of this study was to identify the variables which affect BMI and the relationships among BMI and socio-demographic variables and health-related behaviors among women in Pajoo city. A self-report questionnaire was used covering questions regarding health, eating habits and health related behaviors such as smoking and drinking behavior, exercise, weight management, etc. Test of significance for differences between the groups were performed with $X^2$-test and hierarchial regression. The level of BMI has a positive relationship with age, married status, and weight management among Pajoo citizens in Korea. This study may be utilized in preparation and planning for dementia prevention programs and policies of older people. Also it can be useful for developing and enhancing various health programs and policies and policies when applied appropriately.

The Design of An Ultra-Lightweight RFID Authentication Protocol Using The Index Processing Techniques and Random Numbers (인덱스 처리 기법과 난수 사용을 기반으로 하는 초경량 RFID 인증 프로토콜 설계)

  • Kang, Hyunwoo;Lee, Woo jin
    • Annual Conference of KIPS
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    • 2015.10a
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    • pp.676-679
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    • 2015
  • 수동형 RFID는 제한된 자원으로, 무선채널을 사용하는 기술이다. 하지만 여러 보안 문제점이 있으며, 이를 해결하기 위한 각종 암호화 기법이나 알고리즘을 활용한 인증 프로토콜이 발표되었다. AES와 해시는 대표적인 암호화 알고리즘으로써 그 안정성이 검증되었지만, EPC Global에서 규정한 통신 횟수를 만족하기 힘들다. 본 논문에서는 인덱스 처리 기법과 난수 사용을 기반으로 하는 초경량 RFID 인증 프로토콜을 제안한다. 이 프로토콜은 산술 논리연산자를 사용하여 주요 보안 문제를 해결하였다. 그리고 RFID에 최저 통신횟수를 만족하도록 구현 가능한 프로토콜을 작성하였다.

Effect of Tremella fuciformis Berk on Anti-stress activities during Long-Term and Short-Term in Mice (마우스에서 흰목이버섯 (Tremella fuciformis Berk)의 장.단기적 항스트레스 효과)

  • Ko, Min-Seok;Lee, Seung-Jin;Kang, Sang-Mo
    • KSBB Journal
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    • v.24 no.2
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    • pp.131-139
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    • 2009
  • The objective of this study was to evaluate the protective effect of aqueous extracts from Tremella fuciformis Berk(Tf AE) against stress during long-term and short-term in ICR mice. All the animals were randomly divided into two groups which had been bred for 5 months that were treated by immobilization stress for 8 weeks (total 7 months breeding, equivalent to human beings aged 20) with or without Tf AE, and one out of two groups was continuously bred until they become 18 months old (equivalent to human beings aged 60) without Tf AE. Afterwards, the changes of serum and hepatic metabolites were investigated on the basis of the index of stress-related in vivo oxidative damage. As a result, it was found that stress increases serum triglyceride (TG) and aspartate aminotransferase (AST) and decreases serum HDL-cholesterol in the long-term (total 18 months breeding) and short-term (total 7 months breeding). In addition, stress concerned the decrease of total antioxidant status (TAS) and superoxide dismutase (SOD) as well as the increase of malondialdehyde (MDA) in liver. On the other hand, Tf AE-fed groups reversed all these biochemical indices. These results suggest that stress in one's youth causes negative results in TG, HDL-cholesterol, LDL-cholesterol, AST, TAS, SOD and MDA measured in one's senescent. The administration of Tf AE in the stressed mice decreases serum TG and AST that are increased by stress, and exerts influence on the increase of serum HDL-cholesterol. Also Tf AE recovered the values of liver TAS, SOD and MDA in the stressed mice. In conclusion, Tf AE represented protective effect in the stressed mice to some degree.