• Title/Summary/Keyword: Observation Survey

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Comparison and Analysis of Observation Data of Rainfall Sensor for Vehicle and Rainfall Station (차량용 강우센서와 강우관측소 관측자료 비교분석)

  • Lee, Chung Dae;Lee, Byung Hyun;Cho, Hyeong Je;Kim, Byung Sik
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.38 no.6
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    • pp.783-791
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    • 2018
  • The biased estimation of low density rainfall network and radar rainfall has limited application to extreme rainfall in a small area. To improve this, more rainfall information needs to be produced. In this study, we analyzed the applicability of the vehicle rainfall sensor developed and used recently. The developed rainfall sensor was attached to the vehicle to observe the rainfall according to the movement of the vehicle. The analytical method used time series and average rainfall values for observations of rainfall sensors and nearby rainfall stations. The results show that the trend of observed values according to rainfall events shows a certain pattern. It is analyzed that it is caused by various causes such as the difference between the observation position of the rainfall sensor and the nearby rainfall station, the moving speed of the vehicle, and the rainfall observation method. This result shows the possibility of rainfall observation using a rainfall sensor for a vehicle, and it is possible to observe rainfall more precisely through experiments and improvement of rainfall sensors in various conditions in the future.

ASTRO-F: MISSION OVERVIEW

  • MATSUMOTO TOSHIO
    • Journal of The Korean Astronomical Society
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    • v.38 no.2
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    • pp.93-95
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    • 2005
  • ASTRO-F is the first Japanese dedicated infrared astronomical satellite which will be launched in 2005FY and is now in the final stage of the development. ASTRO-F is a 70 cm aperture cryogenically cooled telescope and designed for the infrared survey with much higher sensitivity and angular resolution than IRAS. We present the current status of the mission, focal plane instruments, and the observation plan now being discussed.

대학도서관 장서구성의 영향요인 분석- 부산대학교도서관 교육학장서를 중심으로 -

  • 김정근;김종성
    • Journal of Korean Library and Information Science Society
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    • v.21
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    • pp.1-55
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    • 1994
  • The present survey aimed at analyzing factors influencing the development of the university library collection, with the special reference to the case of the Education Collection of the Pusan National University Library. For this, the present researchers have identified two areas of influencing factors, i.e.., library factors and user factors. Library factors included collection development policy, manpower, materials received as gift and budget. User factors included faculty and students. For analyzing the factors, the present researchers have relied on qualitative research techniques, using heavily documents produced within the case library, interviews librarians, faculty and students, and observation.

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Survey on the Infestation Rate of Sarcoptes scab-iei var suis from Ear Scrapings of Slaughter Pigs (도장돈에 있어서 돼지천공개선충 (Sarcoptes scabiei var. suis)의 감염률 조사)

  • Lee Bang-Whan;Lim Jung- Taek;Yoon Chung-Kun
    • Journal of the korean veterinary medical association
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    • v.20 no.1
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    • pp.19-25
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    • 1984
  • Seasonal infestation rate of Sarcoptes scabiei var suis were surveyed in 560 slaughter pigs of Kwangju area by means of microscopical detection of eggs and mites from ear scrapings, supplementing morphological observation of the mites. The results were su

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Observation on Reproduction Efficiency Dairy Cattle - Calving Interval, Gestation Poriod, The Interval between Parturition and First Breeding, The Duration from Delivery to Conception - (유우의 번식능률에 관한 연구 -분만간격, 임신시간, 첫 수정일수, 공태일수-)

  • Cho Myoung-Rae;Kwon Oh-Kyeong
    • Journal of the korean veterinary medical association
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    • v.21 no.3
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    • pp.164-169
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    • 1985
  • The survey was carried out to investigate calving interval, gestation period, the interval between parturition and first breeding and the duration from delivery to conception in the total of 320 heads of Holstein cows being fed in the suburbs of Suwon. Th

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New Record of Two Oligohymenophorean Ciliates (Protozoa: Ciliophora) from Korea

  • Jung, Jae-Ho
    • Animal Systematics, Evolution and Diversity
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    • v.37 no.4
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    • pp.280-286
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    • 2021
  • During a field survey on Korean coastal marine waters, two ciliates belonging to the genera Pseudovorticella Foissner & Schiffmann, 1975 and Frontonia Ehrenberg, 1838 in the class Oligohymenophorea de Puytorac et al., 1974, were collected. Even though the two genera are very common in the aquatic ecosystems, they had been superficially studied in Korean habitats. Using the observation of living cells and specimens impregnated by protargol, silver carbonate, and silver nitrate, two newly recorded ciliate are identified as P. paramarina Sun, Ji, Warren & Song, 2009 and F. ocularis Bullington, 1939. A brief diagnosis, remark, and comprehensive micrographs are provided for each species.

VARIABLE STARS IN THE REGION OF AN OPEN CLUSTER M50 (산개성단 M50 영역의 변광성)

  • Jeon, Young-Beom
    • Publications of The Korean Astronomical Society
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    • v.23 no.2
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    • pp.17-23
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    • 2008
  • From the short-period variability survey (SPVS), we obtained time-series BV CCD images in the region of an open cluster M50 (NGC 2323) for 10 nights from 2008 February 9 to 27. The observation was performed using a small refracting telescope (${\phi}$=155mm, f=1050mm) in Bohyunsan Optical Astronomy Observatory (BOAO). M50 is included in the observing field of ASAS (The All Sky Automated Survey). In the region of M50, we found 8 new variable stars including two ${\delta}$ Scuti stars with short-periods and very small amplitudes. There are known nine variable stars by the catalogues of ASAS and GCVS in the region. We confirmed the variability of the known variable stars for six and non-variability for three.

Isolation and Identification of Acanthamoeba in a Contact Lens Storage Case

  • Moon, Eun-Kyung
    • Biomedical Science Letters
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    • v.18 no.3
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    • pp.324-327
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    • 2012
  • Acanthamoeba is a free-living amoeba that causes human infections, and recently the incidence of amoebic keratitis has increased among contact lens wearers. In order to investigate Acanthamoeba contamination of contact lens storage cases, a short survey was performed on 57 contact lens wearers, and Acanthamoeba was found in one contact lens storage case. To diagnose Acanthamoeba, the 18s small subunit ribosomal DNA (18s rDNA) gene was amplified by polymerase chain reaction (PCR), and subsequently, the isolate was identified as A. lugdunensis. This species was originally isolated from a freshwater pool in France, and was reported recently to be a cause of amoebic keratitis. This observation indicates the need for a large survey to investigate the extent of Acanthamoeba contamination, and suggests that contact lens wearers be aware of the importance of hygiene and of the implications of Acanthamoeba infection.

An Analysis on the Project of Creating a Village by Utilizing Assets in a Rural Area - Focused on the Project for a New Cultural Space Creation- (농촌지역 유.무형 자산을 활용한 마을 가꾸기 사업의 추진현황 분석 - 신문화공간조성사업을 중심으로-)

  • Jeon, Yeong-Mi
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2011.04a
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    • pp.197-202
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    • 2011
  • The purpose of this study was to investigate the current situation of physical and intangible assets, and to analyze the use of planning in a new cultural space creation project areas. For this study, literature survey, filed survey and participant observation methods were used for data collection. The results were as follows. 1) The project's characteristics had a variety of space utilization's scope. It was to emphasize the organizations and participants in the human side. 2) There are the pumping stations, mokgammak, mills, barbershops, marketplaces etc in physical assets, and it was worth the historic or agricultural facility. 3) The using plans of three kinds in hardware facilities, software programs, human ware(human abilities)are linked to each other organically. 4) The problems in the project's process include the administrative and institutional factors rather than planning matters.

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A Survey Study on the Characteristics of Korean Chinese Housing Form around Mt. Changbaek in China (중국 장백산 조선족 마을의 주거 형식에 관한 조사연구)

  • Kim, Junebong
    • Journal of the Korean Institute of Rural Architecture
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    • v.2 no.1
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    • pp.47-55
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    • 2000
  • The purpose of this study was to analyze the housing form characteristics of Korean Chinese living around Chagbaek mountain in Chinese. The field survey of housing layout and form of houses and interview and observation methods were was used with the data which were obtained form literature and statistical materials of Chinese government. Their houses are called Guytle-house and their analysed characteristics are summarized as follows ; the housing plans are one room type and they tend to have wide site area, abundant storage spaces and efficient energy saving structure.

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