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Transmission ability of Zika virus with artificially infected Aedes albopictus in Korea
Yang Sung‐Chan,Lee Hee-Il,Kim Hyunwoo,Lee Wook‐Gyo 한국곤충학회 2021 Entomological Research Vol.51 No.8
Zika virus (ZIKV), a virus mainly occurring in South America, is now globally distributed. Understanding the pathogen transmission cycle in a vector is exceptionally important in developing disease control strategies. In this study, we performed ZIKV microinjection in Aedes albopictus (Skuese), to estimate its vertical and horizontal transmission ability. The virus infection rate was confirmed by real-time qPCR in the F1 generation derived from the ZIKV-injected Ae. albopictus. The minimum infection rate (MIR) of the F1 generation was highest when they were injected with the virus at 6–12 h (MIR: 16.1) and lowest at 12–24 h (MIR: 4.7) after feeding. In the developmental stage of the F1 progeny, MIR values were 1.0, 1.3, and 6.7 in each egg, larval, and adult stage, respectively, but ZIKV was not detected in the pupa stage. Virus transmission ability was not significantly different between the collection areas (Tongyeong and Jeju). Ae. albopictus demonstrated a high venereal transmission rate of ZIKV and was detected in males (6 pool/7 pool) and females (6 pool/7 pool), confirming that ZIKV can be transmitted from infected mosquitoes to uninfected mosquitoes via mating. This is the first study of the administration of a ZIKV microinjection to Ae. albopictus in Korea and suggests a possibility of a potential mechanism for the virus to survive during adverse conditions via vertical transmission.
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양진영,김원식,김진희,박찬원 江原大學校 産業技術硏究所 2009 産業技術硏究 Vol.29 No.B
This paper presents the development of smart road line lamp system consisting light control device. It can perform the individual power control or partial on/off control of a LED lamp by control center and can detect the error of the LEDs by current sensing . Also, the ability to control the brightness and period of on/off by detecting the car's existence. This light control circuit consists of road line lamp unit device. It can give a lot of solutions when the server, which controls the whole system, is operated through CDMA(Code-Division Multiple Access) network
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感冒辨證에서 희수식 맥진기를 이용한 肺脈觀察의 臨床的 意義
김준명,고재찬,배한호,박양춘,김병탁,김철중 대전대학교 한방병원 2001 惠和醫學 Vol.10 No.1
By useing hisusik-makjingi(희수식맥진기) we analysed lung-pulse of common cold patient. The result as fellow ; 1. In case of wind-cold common cold patient, It is short-avove pulse type and when cold transfer to fever it is dry-cold type pulse. 2. In a case of wind-heat, there is a pulse of above-frequent or frequent-stringed. And also we can find out that in a mild fever case there is not a frequent pulse meaning the heat. 3. In case of vutal energy shortage and yabggi deficiency, we can also notice that the pulse is so powerless. 4. The patient who have had an old complaint and a serious illness didn't show the accordance with the pulse and common cold type.
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김성철,양동훈,송찬후,전형순 정보통신정책학회 2005 정보통신정책연구 Vol.12 No.1
RFID는 차세대 유비쿼터스 환경에서 중요한 기술적, 산업적인 위치를 차지할 것으로 주목받고 있는데 향후 다양한 분야에서 새로운 시장을 창출할 것으로 기대되고 있다. 본 연구는 RFID 확산으로 인해 야기되는 정보보호 이슈들에 대응하기 위한 기업차원의 주요전략에 대해 고찰한다. 우선 RFID의 개요와 RFID관련 정보보호 문제들을 개관한 후 주요 선진국의 법제도적인 그리고 기술적인 차원에서의 대응을 분석한다. 이러한 분석을 바탕으로 RFID를 공급하는 기업의 입장에서, RFID를 적용하는 수요기업의 입장에서 그리고 정부 입장에서의 전략적인 대응방안을 도출한다. RFID (radio frequency identification) as a form of next-generation barcode has received a great deal of attention in the commercial world over the couple of years. In spite of the promise of enhanced efficiency and accuracy, RFID raises privacy and information security issues. This paper examines privacy and information security issues and describes current legal actions and technical solutions. In addition, this paper suggests that RFID vendors, users and government need to develop careful strategies coping with RFID security challenges to enjoy the magic of RFID.
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제주도 함덕연안해역의 해황·기상의 계절변동에 관한 연구
양성기,최찬문,김해동 濟州大學校海洋硏究所 1995 해양과환경연구소 연구논문집 Vol.19 No.-
Time series data of oceanic and meteorological elements observed by Marine Research Institute, Cheju National University are used to investigate seasonal variabilities in oceanic and atmospheric conditions. Heat ?? elements at the sea surface are derived from the data of the marine meteological reports by applying an aerodynamical bulk method. The seasonal variation of serveral heat flux elements were abnormal during the analysed period(June,1993 ∼ September, 1995), and it might be related to global-scale changes in the ocean-atmosphere system. And the oceanic condition of the northern Cheju Island was sensitive to the insolated solar radiation.
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2차원 형상의 삼각 요소망 자동 생성 소프트웨어의 개발
김찬수,양현익 漢陽大學校 工學技術硏究所 1999 工學技術論文集 Vol.8 No.1
최근 20여년 동안 다양한 2차원 형상에 대한 다수의 자동 요소망 생성 알고리듬이 꾸준히 제시되어 왔으며 그중 삼각요소 망이 효율성과 조절이 용이하다는 점에서 주류를 이루어왔다. 본 연구에서는 절점의 배치, 요소의 형상, 대상 힘상의 독립성을 향상시키기 위해 기존의 삼각요소망 알고리듬을 전반적으로 수정하였다. 본 알고리듬은 절점 생성 부분과 요소 생성 부분으로 구성되어 있다. 제안된 알고리듬은 기하학적인 형상 안에서 적절한 절점 위치를 찾기 위해서 경계내의 점들을 검색하고 비교적 우수한 요소망을 구성하기 위해 절점의 위치를 최적화한다. 더욱이, 제안된 알고리듬은 다양하고 복잡한 2차원 대상물을 다루며 요소망 생성 속도가 기존의 알고리듬에 비해 10배정도 빠르다 대상물의 경계를 구성하는 부분이 완전 자동화되었으며 독립적인 요소망 소프트웨어로 바로 사용할 수 있도록 하였으며, 사용자의 편의성을 제공하고 있다. For last two decades numerous automatic mesh generation algorithms for various two dimensional objects have been introduced continuously and among them triangular mesh generation schemes have been majority because of efficiency and controllability. In our study, an existing triangular mesh generation algorithm is totally modified to more improve node distribution, element shape, and objects shape independency. It is composed of node generation part and element generation part. In order to find a suitable node position within geometry, the suggested algorithm searches desirable positions of points within boundary and optimizes node position to generate comparatively well-shaped elements. More over, the suggested algorithm handles various complex two dimensional objects and its meshing speed is almost on-tenth that of the exisiting triangulation mesh algorithms. It is fully automated in a sense of constructing object boundary and hence can be directly used as an independent meshing software. A well implemented user interface also incorporated into it.
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Pseudomonas sp. 로부터 생산되는 phytase에 관한 연구
김대영,양시용,권문남,김찬길 建國大學校 自然科學硏究所 2002 建國自然科學硏究誌 Vol.13 No.2
Phytase (myo-inositol hexakisphosphate phosphohyrolase) is found naturally in plants and microorganisms. It catalyses pydrolysis of phytate to release inorganic phosphate, which would decrease the addition of phosphorus to feedstuffs for monogastric animals and thus reduce environmental pollution. this study was carried out for examination of characteristic of phytase from Pseudomonas sp. The phytase from Pseudomonas sp. was partially purified by DEAE-Sepharose chromatography and its molecular weight was estimated to 45kDa by SDS-PAGE Partially purified phytase was stable at pH values ranging from 5.0~7.0, and it was stable to 40℃.
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