• Title/Summary/Keyword: Sunshine

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A Case Study on Arrangement and Application of Public Facilities on Lower Levels in the Multiple-Family Housing (공동주택 단지 주동 저층부 공용시설의 배치와 활용 현황)

  • Hur, Bo-Hyung;Yang, Woo-Hyun
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2004.11a
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    • pp.177-182
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    • 2004
  • To cope with the serious housing shortage arising from rapid urbanization and industrialization, residential communities were constructed to meet the growing demand for housing. However, mass construction of these residential communities unavoidably resulted in uniformity standardization. In particular, for high rise apartment blocs using the ground floor as the center of the lower levels housings has raised problem of sunshine, airing, privacy. The research which it sees as the house low evaluation it is coming to become it plans a public facilities on lower levels of the building which keeps the quality which the ground connection and human scale back separates as, to solve the problem point of the lower levels house and the resident collective life which is smooth becomes accomplished.

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A study on the temperature characteristic in OPGW link due to meteorological effects (기상조건에 따른 OPGW회선온도특성 연구)

  • Yoon, Il-Hwan;Lee, Jae-Jo;Huh, Young;Yoo, Jae-Tack
    • Proceedings of the KIEE Conference
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    • 1997.11a
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    • pp.581-583
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    • 1997
  • In this paper, we present a temperature characteristic in OPGW link due to meteological effects. we measured a temperature on a 2km OPGW using a distributed optical fiber temperature sensing system. The measurement showed that OPGW temperature was several degrees lower to ambient atmospheric temperature in the nighttime and several degrees higher than that in the daytime due to sunshine. It'll be used for a reference data of the transmission delay variations in OPGW link due to meteorological effects.

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Water Requirement for Crops by using Meteological data (기상자료에 의한 작물의 필요수량 결정)

  • 이중기
    • Water for future
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    • v.6 no.1
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    • pp.87-99
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    • 1973
  • The calculation of the comsumptive use by crop can be most accurate when it is actually measured. The mankind is not yet able tole grasp all the natural conditions or phenomena. The induces of actual measurement at a representive observatory and the formula abtained from the area werowere made as close as possible, which is called as the Blaney Criddle formcula, published in 1945. In calculating the water require-ment of consumptive use of water by farm crops, a more accurate and reasonable formula should be induced as the factors other than temperature and day-time hours according to the location of project area have also influences. The formula of Mr. Jerald E. Christianen published in 1969 is based on the induces of the records of actural measurements for 3, 928 months at 80 different stations and his formula couers a wider range of functions that calculate water requirement to induce the functions of moisture, wind, velocity, sunshine at elevatons, in addition to temperature and daytime hours in accordance with latitude and was modified to be fit to natural phenomena. The formula is being widely in use in many contries with their modification since it is worth while for usealso in korea, the formula is introduced and explained in the following.

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Modeling of Daily Reference Evapotranspiration using Polynomial Networks Approach (PNA) (PNA를 이용한 일 기준증발산량의 모형화)

  • Kim, Seong-Won
    • Proceedings of the Korea Water Resources Association Conference
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    • 2011.05a
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    • pp.473-473
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    • 2011
  • Group method of data handling neural networks model (GMDH-NNM) is used to estimate daily reference evapotranspiration (ETo) using limited climatic variables such as max temperature ($T_{max}$), min temperature ($T_{min}$), mean wind speed ($W_{mean}$), mean relative humidity ($RH_{mean}$) and sunshine duration (SD). And, for the performances of GMDH-NNM, it consists of training and test performances, respectively. The training and test performances are carried out using daily time series data, respectively. From this research, we evaluate the impact of GMDH-NNM for the modeling of the nonlinear time series data. We should, thus, construct the credible data of the daily ETo data using GMDH-NNM, and can suggest the methodology for the irrigation and drainage networks system. Furthermore, this research represents that the strong nonlinear relationship such as ETo modeling can be generalized using GMDH-NNM.

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A Study of Korean Traditional Physical Therapy (한국의 전통 물리치료에 관한 연구)

  • Kim, Yeon-Ju;Bae, Sung-Soo;Oh, Hyen-Ju
    • Journal of the Korean Society of Physical Medicine
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    • v.1 no.1
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    • pp.161-168
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    • 2006
  • Purpose : The purpose of this study was carried out to review for hydrotherapy, phototherapy, cupping therapy, therapeutic touch and massage as a Korean traditional physical therapy. Methods : This is literature study with books, and thesis. Results : The physical therapy that is in use nowadays has been around since human being started to live on the earth. In primitive times, when men were injured while hunting, they washed the wound in clinic water and dried it out in the sunshine, they also soaked their bodies in hot springs to decrease physical fatigue, Heating of injured tissue has been used for centuries for pain relief and muscle spasm. Conclusion : Korean traditional physical therapy has been developed and its scientific effects has been proven, It is required, to continue to carry out studying on this field.

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Factors Affecting Unusually Severe Outbreak of Rice Blast in Gyeongnam Province in 1993 (1993년 경상남도지역의 벼도열병 다발생과 그 원인)

  • 강수웅;김희규
    • Korean Journal Plant Pathology
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    • v.10 no.2
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    • pp.78-82
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    • 1994
  • Unusually severe rice blast epidemic sweeped over the rice growing area in Gyeongnam Province and elsewhere in 1993. Leaf blast infection was reached to 33,133 ha, which is about 24.5% of total paddy area and neck blast infection was apparent throughout 4,421 ha. Major factors affecting such an unusual epidemic appeared to be as follow: Firstly, low temperature, frequent rainfall and coincidentally insufficient duration of sunshine through July and August; Secondly, most cultivars possessing low levels of field resistance were cultivated in wide areas: Thirdly, blast fungus population was enough for successive infection under optimum weather condition and most races distributed in field were able to infect most cultivars.

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Practical Application of Virtual Acoustic Field Simulation System(VAFSS) (능동형 음장조성시스템의 적용 사례)

  • Park, Sa-Keun;Jang, Gil-Soo;Kook, Chan;Song, Min-Jeong;Jeon, Ji-Hyeon;Shin, Hoon
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2006.05a
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    • pp.738-741
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    • 2006
  • Virtual Acoustic Field Simulation System (VFASS) has been developed through soundscape technique research for making comfortable acoustic environment in urban public places. This system could suggest Introducing sounds which are suitable for certain area, Also this system gives certain area vitalities and amenity through with the correspondence to time, temperature, humidity, wind velocity and sunshine of the area. In this paper, Application possibility of VFASS is examined how can be adapted to D University square as a case study.

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The Classification and Age Determination of Ballpoint Pen Inks in Questioned Documents

  • Kim, Nam Yee;Park, Sung Woo;Doble, Philip;Roux, Claude
    • Analytical Science and Technology
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    • v.17 no.3
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    • pp.271-277
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    • 2004
  • The aim of this study was to investigate questioned documents written with blue or black ballpoint pen on paper by nondestructive technique. In this work, 21 blue and 22 black ballpoint pen inks which were purchased on different brands were analyzed by using Microspectrophotometry (MSP). The reflectance spectra were obtained from these ink samples and their shapes and the wavelength of the maximum intensity were compared. In the blue and black ballpoint pen inks, the discriminating powers (DP) were 0.85 and 0.61, respectively. The changes of the reflectance intensity at their wavelength of maximum intensity and their shapes appeared according to the exposure time to sunshine in a laboratory, especially in the blue ballpoint pen inks. Therefore it is possible to distinguish ink entries on the same paper with the relative age in case of questioned letters written with blue ballpoint pen.

Interpretation on the Epidemic Outbreak of Rice Blast Disease in Korea, 1978. (1978년도 도열병 대발생의 요인분석)

  • Eun-Woong Lee;Sun-Zik Park
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.24 no.1
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    • pp.1-10
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    • 1979
  • In order to investigate the causes of epidemic out break of rice blast disease in 1978, investigations were undertaken in respect of climatic conditions, variety, cultural practice and plant pathology. During 1978, especially in August at heading time, it was higher temperature and humidity, higher frequency and amount of rainfall, lower amount of sunshine and solar radiation than less blast infested years. Nitrogen content in rice plant was higher than previous years. Acreage increase of semi-dwarf varieties brought about a result of proportional increase of new blast races which are able to infect the semi-dwarf varieties. It was concluded that those conditions mentioned above might have caused the result of severe neck blast disease in rice varieties in Korea, 1978.

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PRESENT AND FUTURE OF SUPER HIGH-EFFICIENCY TANDEM SOLAR CELLS

  • Yamaguchi, Masafumi
    • Electrical & Electronic Materials
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    • v.11 no.11
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    • pp.37-45
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    • 1998
  • In this paper, present status of super high-efficiency tandem solar cells has been reviewed and key issues for realizing super high-efficiency have also been discussed. In addition, the terretrial R&D activities of tandem cells, in the New Sunshine Program of MITI(Ministry of International Trade and Industry) and NEDO(New Energy and Industrial Technology Development Organization) in Japan are reviewed briefly. The mechanical stacked 3-junction cells of monolithically grown InGaP/GaAs 2-junction cells and InGaAs cells have reached the highest efficiency achieved in Japan of 33.3% at 1-sun AM1.5. This paper also reports high-efficiency InGaP/GaAs 2-junction solar cells with a world-record efficiency of 26.9% at AM0, 28$^{\circ}C$ and radiation damage recovery phenomena of the tandem cell performance due to minority-carrier injection under light illumination or forward bias, which causes defect annealing in InGaP top cells. Future prospects for realizing super-high efficiency and low-cost tandem solar cells are also described.

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