• Title/Summary/Keyword: 충인

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지역에 따른 기생충감염 실태,아직도 심각

  • Ju, Gyeong-Hwan
    • 건강소식
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    • v.13 no.3 s.124
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    • pp.32-35
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    • 1989
  • 전반적 기생충 감염율은 감소되는 반면 다른 기생충 질환이 사회적으로 문제가 되고 있으며, 지역에 따라서는 다른 지역에 비해 높은 감염율을 나태 내는 특정 기생충 질환이 문제가 된다.

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속설 '기생충'

  • Lee, Byeong-Ju
    • 건강소식
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    • v.2 no.9 s.12
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    • pp.4-5
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    • 1974
  • 우리는 "기생충"이란 말을 여러 곳에서 쓰고 있다. 남에게 붙어서 얻어먹는 것을 "기생"이라고 한다. 기생충은 우리 몸속에서만 몰아 낼 것은 아니다. 사회에서, 우리들이 살고 있는 밝고 명랑한 사회에서도 단호히 몰아내어야겠다.

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Computational Modeling of Charge-Discharge Characteristics of Lithium-Ion Batteries (리튬이온 전지의 충방전 특성에 대한 전산 모델링)

  • Lee, Dae-Hyun;Yoon, Do-Young
    • Journal of Energy Engineering
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    • v.20 no.4
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    • pp.278-285
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    • 2011
  • Computational modelling and simulation for the charge-discharge characteristics of Lithium-ion batteries have been carried out. The battery system consists of a simplified 2-dimensional single cell for the modelling, in which the thermal modelling on the charge-discharge characteristics was conducted in the temperature range from 288 K through 318 K by using FEMLAB as an engineering PDE solver. While material parameters adopted in the present modelling were dependent on the system temperature, their thermal modelling were applied on the simulations of the charge-discharge period and the rate of transferring charges systematically. The resulting simulation shows that the cycle of the charge-discharge shorten itself by reducing the system temperature, regardless of the charge-discharge rates. In addition, the mass-transport phenomena of Lithium ion have been discussed in connection with the charge-discharge characteristics in the battery.

A Design and Implementation of Multimedia Pest Prediction Management System using Wireless Sensor Network (무선 센서 네트워크를 이용한 멀티미디어 병해충 예측 관리 시스템 설계 및 구현)

  • Lim, Eun-Cheon;Shin, Chang-Sun;Sim, Chun-Bo
    • Journal of the Korea Society of Computer and Information
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    • v.12 no.3
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    • pp.27-35
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    • 2007
  • The majority of farm managers growing the garden products in greenhouse concern massively about the diagnosis and prevention of the breeding and extermination for pests. especially, the managing problem for pests turns up as main issue. In the paper, we first build a wireless sensor network with soil and environment sensors such as illumination, temperature and humidity. And then we design and implement multimedia pest predication and management system which is able to predict and manage various pest of garden products in greenhouse. The proposed system can support the database with information about the pests by building up wireless sensor network in greenhouse compared with existing high-priced PLC device as well as collect various environment information from soil, the interior of greenhouse, and the exterior of greenhouse. To verify the good capability of our system, we implemented several GUI interface corresponding desktop. web, and PDA mobile platform based on real greenhouse model. Finally, we can confirm that our system work well prediction and management of pest of garden products in greenhouse based on several platforms.

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Studies on the Control of AtoN Charge and Discharge Controller (항로표지 충·방전조절기의 제어에 관한 연구)

  • Ye, Seong-hyeon;Han, Soonhee
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2014.10a
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    • pp.654-657
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    • 2014
  • In this paper, we proposed a short distance control method of AtoN charge and discharge regulator. The proposed control measures, was constructed by applying the communication standards NEMA018 of AtoN and control function analysis of the charge and discharge regulator that has been operating in the country. By using the control method is proposed, while maintaining the waterproof without product degradation, there is an advantage that can communicate control wired or wireless. Also, it is possible to ensure the accessibility of the charge and discharge regulator in operation, it is effective for maintenance. In this paper, installed the application to control the charge and discharge regulator to the smart-phone. by using a PC and Blue-tooth communication, to examine the effectiveness of the control information. Future, control method of power controller, can provide a national standard.

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Parasites of Freshwater Fishes in Cheju-do (제주도산(濟州道産) 담수어류(淡水魚類)에 기생(寄生)하는 기생충(寄生蟲)에 관한 연구(硏究))

  • Jo, Jae-Yoon
    • Journal of fish pathology
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    • v.3 no.2
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    • pp.51-60
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    • 1990
  • Parasites of freshwater fishes in Cheju-do were studied from May 1989 to April 1990, and incidence of infection in 16 fish species was reported. Protozoan parasites (Trichodina sp., Chilodonella sp., Ichthyophthirius sp., Vorticella sp., Myxidium sp., Myxobolus sp., Henneguya sp:, Ichthyobodo sp., and Trychophrya sp.), water mold (Saproregnia sp.), two monogenes (Dactylogyrus sp. and Gyrodactylogyrus sp.), Trematods, Cestods, Nematods, Acanthocephalas, parasitic copepods(Lernaea sp. and Pseudergasilus sp.) and a Hirudinea were recognized as freshwater fish parasites in Cheju-do. Trichodina sp. showed the highest infection rate (18.3%). Fifty seven individual fishes out of 311 were infected by this parasite. Nematods showed the second highest infection rate (13.5%). Dactylogyrus sp., Acanthocephalas, and Trematods showed the third (4.8%), fourth (4.2%), and fifth (2.6%) infection rate respectively. Of the 16 fish species Cryptocentrus filifer (Gobiidae) showed the highest infection rate. Nineteen fish out of 28 have Trichodina sp., and 14 fish out of 28 have Nematods. Those infection rates were 67.9% and 50.0% respectively. No parasites were collected from the fishes of Gwangryung vally, Dosoon-chun, Gangjeong-chun, and Hyodon-chun.

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Practical Approach for Quantitative and Qualitative Analyses of Marine Ciliate Plankton (해양 섬모충플랑크톤 정량과 정성분석의 현실적 접근)

  • KIM, YOUNG OK;KIM, SUN YOUNG;CHOI, JUNGMIN;KIM, JAESEONG
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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    • v.26 no.3
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    • pp.248-262
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    • 2021
  • Marine planktonic ciliates include two major groups, loricated tintinnids and naked oligotrichs. The study of marine ciliate plankton in Korea began with taxonomic efforts on tintinnids based on the morphology of lorica, a vase-shaped shell. Despite polymorphism in the lorica, it is utilized as a key characteristic in identification of tintinnid species. However, oligotrichs have been studied only recently in Korea due to challenges associated with the observation of ciliary arrangements and the technical development for cell staining. Species diversity and phylogenetic classification of the ciliates have been informed by recent advances in morphological and molecular analyses. Illustrations of the planktonic ciliate in Korea have been published on the basis of taxonomic data of tintinnids and oligotrichs. Planktonic ciliates acting as the major consumers of pico- and nanoplankton as well as the prey of mesozooplankton, has been monitored by spatial and temporal investigations in Korean coastal waters. A practical approach addressing the limitations and potential of marine ciliate studies in Korea is proposed here to improve the data quality of planktonic ciliates, providing an enhanced basis for quality control of ciliate monitoring.

The influences of character strength on full life of adults in Korea: Mediating effects of volunteering (한국사회에서 성인의 성격강점이 충만한 삶에 미치는 영향: 봉사행동의 매개효과를 중심으로)

  • Eunho Kim;Junseong Park;Taeyun Jung
    • Korean Journal of Culture and Social Issue
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    • v.23 no.4
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    • pp.587-604
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    • 2017
  • The purpose of this research is to analyze generation gap of positive effects on character strength for full life of adults in Korea and to verify mediating effect of volunteering from character strength in this roots. To test this effects, there was an investigated differences of perception on character strength, volunteering and full life from 1,405 Koreans. Then had set up the influence model of character strength on full life between generation, and verified the model through structural equation. Therethrough first, there was statistical significant between generations except the variables of trust, full life and meaning of life. Second, full life was positively influenced by character strength in early adulthood. Third, volunteering had fully mediated from character strength to full life in post middle aged adults, but had partially mediated in early adulthood. This will help acquaint us with importance of accompany with volunteering at character strength than character strength directly connects to full life. Based on these results, we are treated on importance of mediating volunteering effects and influences of character strengths on full life in Korean society.

넙치 스쿠티카증에 대한 케토코나졸의 구제효과 및 안전성에 관한 연구

  • 지보영;조미라;심재동;김이청;박미선
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2003.05a
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    • pp.324-325
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    • 2003
  • 스쿠티카충은 해산어류의 체표 등과 같은 외부기관 뿐만 아니라 뇌에까지 침입하여 양식산업에 심대한 경제적 손실을 야기시키는 기생충으로써(Cheung et al., 1980; Ototake and Matsusato, 1986; Dragesco et al., 1995; Munday et at.,1997; Jee et al., 2001), 이 기생충에 의한 국내의 양식 넙치 폐사량은 총 폐사량의 약 10 % 정도 내외에 이르고 있다. 본 연구는 체내에 감염된 스쿠티카충에 대한 케토코나졸의 치료효과를 검토하고 본 약물의 넙치에 대한 안전성을 분석코자 하였다. (중략)

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