• Title/Summary/Keyword: Sunshine

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Adaptation Study of Rice Cultivation in Gangwon Province to Climate Change (기후변화에 대한 강원지역 벼 재배의 적응)

  • Seo, Young-Ho;Lee, An-Soo;Cho, Byoung-Ouk;Kang, An-Seok;Jeong, Byeong-Chan;Jung, Yeong-Sang
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.12 no.2
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    • pp.143-151
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    • 2010
  • The impact of climate change on rice plants in Gangwon province was examined by comparing the climatic conditions during the recent 10 years (2000~2009) with those of normal (1971~2000) years, and by evaluating the rice plant responses. The daily mean air temperature increased by $0.5^{\circ}C$ while the daily range decreased by $0.1^{\circ}C$ as compared with the normal years. During the main rice growing period in field (from June to September) precipitation increased from 900 to 1,051mm and sunshine hours decreased from 704 to 619 hours. The respiration consumption effect during the rice growing period increased by 0.07 as a result of increased air temperature and reduced sunshine hours. The optimum heading date (determined by the mean air temperature for 40 days after the heading) was delayed in Chuncheon, Hongcheon, Wonju, and Gangneung compared with the normal. The maximum climatic yield potential based on mean temperature and sunshine hours for 40 days after the rice heading decreased by 94 kg/10a mainly due to the decrease in sunshine. The mean air temperature for 40 days after the rice heading from 1999 to 2009 in Chuncheon, Cheorwon, and Gangneung was generally above $22^{\circ}C$ implying that yield and quality of rice can be reduced. Therefore, it is necessary to delay the heading date by planting mid- to late-maturing varieties or by changing the transplanting date in order to produce high quality rice and to maintain rice productivity. In addition, it is also important to develop or select cultivars suitable to changing climate for each region in Gangwon province.

A Study on Systematizing Production and Access of the Public Institution's Conference Records -Focused on The Government in the Sunshine Act in USA - (공공기관의 회의록 생산·공개 제도화 연구 -미국의 회의공개법에 대한 분석을 중심으로-)

  • Byon, Ju-yon
    • The Korean Journal of Archival Studies
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    • no.17
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    • pp.203-245
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    • 2008
  • Although a few years have passed since the importance of the public record management became the subject, the management of the minutes which is produced from the deliberation and decision-making process of an important policy relatively was been neglected the while. When institutionally inspecting at present, the minutes production is based upon Record Management Law, and the minutes opening is based upon Freedom of Information Act. Although the minutes must be made out according to Record Management Law, it is not well operated. So, the minutes formally is made out and there was actually the important minutes excepted from the management object. Opening of the minutes made by Article 9 of Freedom of Information Act has the problem that be used as a basis of dividing unfairly into closed opening because the reason of the closed opening is vague. This study analyzes the problem of production and opening of the current minutes. It also considers Sunshine Act in USA and suggests a institutional ways for production and opening of Korean minutes. We can think of two institutional ways for production and opening of the minutes. One is making a separate law like Sunshine Act in USA. The other is revising the existing laws. In reality it's very difficult to make a new law for minute production and opening. Therefore, the purpose of this study is to suggest the way for revising Record Management Law and Freedom of Information Act that include minutes related regulations. The record must be fundamentally produced and opened for a nation and people as public records is the records of the nation and people as well as an authority which produced those records. If the minutes is produced and opened from a institutional change through the revision of Record Management Law and Freedom of Information Act, the minutes can not only help the responsible administration to realize but be utilized to important historical records as a basis data of an important policy decision-making.

Clinical Case Study on Plantar Fasciitis after Extracorporeal Shock Wave Treatment (체외충격파 시술 후 내원한 족저근막염 환자 치험 1례)

  • Chu, Min-Gyu;Choi, Jin-Bong;Kim, Whan-Young;Jeong, Il-Moon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.1
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    • pp.232-236
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    • 2009
  • Plantar fasciitis is most common cause of heel pain which starts anterior tubercle of calcaneus. It is chronic inflamation of plantar fascia, reduces collagen and water content of heel pain which incur the degenerative changes with elastic fiber weakness. We treated one patient after extracorporeal shock wave treatment. We diagnosed him with X-ray and treated her conservative maneuver as to oriental medical method. We measured Vas(Visual analogue scale) and thermographic picture of both leg. Visual analogue scale is from 10 to 4 and thermographic picture of both leg were improved in cases.

Development of Yield Forecast Models for Vegetables Using Artificial Neural Networks: the Case of Chilli Pepper (인공 신경망을 이용한 채소 단수 예측 모형 개발: 고추를 중심으로)

  • Lee, Choon-Soo;Yang, Sung-Bum
    • Korean Journal of Organic Agriculture
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    • v.25 no.3
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    • pp.555-567
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    • 2017
  • This study suggests the yield forecast model for chilli pepper using artificial neural network. For this, we select the most suitable network models for chilli pepper's yield and compare the predictive power with adaptive expectation model and panel model. The results show that the predictive power of artificial neural network with 5 weather input variables (temperature, precipitation, temperature range, humidity, sunshine amount) is higher than the alternative models. Implications for forecasting of yields are suggested at the end of this study.

The Effects of Mental Practice about Leg Exercise Muscle Activities of the Rectus Femoris

  • Kim, Tae-Hoon;Kim, Kyung-Hun;Kim, Ju-O
    • Journal of Korean Physical Therapy Science
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    • v.24 no.3
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    • pp.39-47
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    • 2017
  • Purpose: This study aimed to investigate the effects of mental practice about leg exercise muscle activities of the rectus femoris. Method: 20 subjects were participated in this study. The values before the experiment were measured and those after the mental performance from the first experiment to the fifth experiment were measured. Electromyography (EMG) was used to measure the muscle activity of rectus femoris. Result: The muscle activity of the both rectus femoris after mental practice increased steadily and showed significant differences. Conclusion: In the present study, it was found that the muscle activity of both legs was increased during the mental practice. It can be seen that there was a difference before and after mental practice, and muscle activity of rectus femoris was increased.

Analyses on Sunshine Influence of Road using GIS (GIS를 이용한 도로의 일조영향 분석)

  • Lee, Hyung-Seok;Kim, Jung-Sik;Park, Joon-Kyu
    • 한국공간정보시스템학회:학술대회논문집
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    • 2005.05a
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    • pp.419-425
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    • 2005
  • 산악지역을 관통하는 도로의 경우 그 특성상 절토 후 도로를 시공하는 경우가 자주 있으며 때로는 매우 긴 구간에 일조가 적게 나타나 음영이 오래 지속되는 곳이 발생한다. 본 연구는 GIS를 이용하여 도로의 노선계획시 예상되는 일조영향을 평가하여 정확한 데이터를 제공하고자 한다. 실험대상지역을 선정하고 수치지형자료의 변환을 통하여 3D 지형 메쉬데이터를 작성하고 동일좌표체계의 도로선형자료를 반영하여 정확한 도로모델링을 생성하므로써 도로의 각 지점별 일조영향분석을 위한 기초자료를 구축하였다. 또한 도로노면상의 음영시간을 계산하고 일영이 도로 전체에 어느 정도 유지되는지를 가시적으로 모델링화하여 계절별 시간대별로 도식화하므로써 판단자의 시각적 분석을 가능케 하였다.

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Characteristics of nocturnal maximum ozone and meteorological relevance in Pusan coastal area (부산 연안역의 야간 고농도 오존 발생 특성과 기상학적 관련성)

  • 전병일
    • Journal of Environmental Science International
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    • v.8 no.3
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    • pp.287-292
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    • 1999
  • This study was performed to investigate the characteristics of nocturnal maxiumu ozone occurrence and the meteorological relevance using to hourly ozone data and meteorological data for 1995~1996 in Pusan coastal area. Kwangbokdong showed the highest occurrence of nocturnal maximum ozone as 36.9%, and Deokcheondong showed the lowest occurrence(9.2%) for research period in Pusan. The occurrence rates of nocturnal maximum ozone concentration were decreased toward land area. The low maximum temperature, high minimum temperature, low diurnal range, high relative humidity, high wind speed, high could amount, low sunshine and low radiation were closely related to the main meteorological characteristics occuring the nocturnal maximum concnetration of ozone. It was shown that normal daily variation of ozone concentration by strong photochemical reaction at the before day of nocturnal maximum ozone. The concnetration of nocturnal maximum ozone were occured by entrainment of ozone from the upper layer of developed mixing layer. There are no ozone sources near the ground at night, so that the nighttime ozone should be entrained from the upper layer by forced convection.

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The Study on Optimize the Battery of Stand Alone PV/Wind Hybrid System for Supplying Stably Power (독립형 태양광 풍력 복합발전 시스템에서 안정적인 전력공급을 위한 축전지 용량의 최적 산정에 관한 연구)

  • Choi, Byoung-Soo;Kim, Jae-Chul
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.25 no.9
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    • pp.26-32
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    • 2011
  • The object of this paper is to optimize the battery system for supplying stably power in separate house in which a PV-wind hybrid power generation system is applied. In a power system to be used in a stand alone, it is very important to build optimize the electrical storage system and to utilize it for supplying stably output voltage when there is a shortage of the power generation capacity or there is no sunshine, or when power is to be supplied with a load. This paper provides an optimized method to evaluate capacity of battery by analyzing advantages and disadvantages of the existing battery evaluating method being used in each company for supplying stably power in separate house utilizing the new renewable energy such as a light of the sun.

A Study on the Estimating Solar Radiation for Arbitrary Areas (임의의 지점에 대한 일사예측에 관한 연구)

  • Jo, D.K.;Lee, T.K.;Cho, S.H.;Chea, Y.H.;Auh, P.C.
    • Solar Energy
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    • v.9 no.3
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    • pp.25-36
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    • 1989
  • It is necessary to estimate the regression coefficients in order to predict the monthly mean daily global radiation on a horizontal surface. Therefore many different equations have proposed to evaluate them for certain areas. In this work a new correlation has been made to predict the solar radiation for any area over Korea by estimating the regression coefficients taking into account latitude, percentage of possible sunshine, and cloud cover. Particularly, the single linear equation proposed by Page & Garg shows reliable results for estimating the global radiation with average deviation of -1 to 3% from the measured values.

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Development of PV Power Prediction Algorithm using Adaptive Neuro-Fuzzy Model (적응적 뉴로-퍼지 모델을 이용한 태양광 발전량 예측 알고리즘 개발)

  • Lee, Dae-Jong;Lee, Jong-Pil;Lee, Chang-Sung;Lim, Jae-Yoon;Ji, Pyeong-Shik
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.64 no.4
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    • pp.246-250
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    • 2015
  • Solar energy will be an increasingly important part of power generation because of its ubiquity abundance, and sustainability. To manage effectively solar energy to power system, it is essential part In this paper, we develop the PV power prediction algorithm using adaptive neuro-fuzzy model considering various input factors such as temperature, solar irradiance, sunshine hours, and cloudiness. To evaluate performance of the proposed model according to input factors, we performed various experiments by using real data.