• Title/Summary/Keyword: CPV

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Detection of viral infections in wild Korean raccoon dogs (Nyctereutes procyonoides koreensis)

  • Yang, Dong-Kun;Lee, Seoug Heon;Kim, Ha-Hyun;Kim, Jong-Taek;Ahn, Sangin;Cho, In-Soo
    • Korean Journal of Veterinary Research
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    • v.57 no.4
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    • pp.209-214
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    • 2017
  • Wild raccoon dogs (Nyctereutes procyonoides koreensis) may play a role transmitting several pathogens to humans and pet animals. Information concerning the incidence of rabies, canine distemper virus (CDV), canine parvovirus (CPV), canine adenovirus type 2 (CAdV-2), canine parainfluenza virus type 5 (CPIV-5), and canine herpesvirus (CHV) is needed in wild raccoon dogs. In total, 62 brain samples of raccoon dogs were examined for rabies virus (RABV) and CDV, and 49 lung samples were screened for CDV, CAdV-2, CPIV-5, and CHV. No RABV, CAdV-2, CPIV-5, or CHV was identified, but nine CDV antigens (8.1%, 9/111) were detected. Moreover, 174 serum samples from wild raccoon dogs were screened for antibodies against the five major viral pathogens. The overall sero-surveillance against CDV, CPV, CAdV-2, CPIV-5, and CHV in wild raccoon dogs was 60.3%, 52.9%, 59.8%, 23.6%, and 10.3%, respectively. Comparisons of the sero-surveillance of the five pathogens showed that raccoon dogs of Gyeonggi province have slightly higher sero-positive rates against CDV, CPV, and CHV than those of Gangwon province. These results indicate high incidences of CDV, CPV, and CAdV-2 in wild raccoon dogs of two Korean provinces and a latent risk of pathogen transmission to companion and domestic animals.

Detection and Epidemiological Survey of Canine Parvoviral Enteritis by Polymerase Chain Reaction (Polymerase Chain Reaction을 이용한 Canine Parvovirus성장염의 진단과 역학조사)

  • Kim, Doo;Jang, Wook
    • Journal of Veterinary Clinics
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    • v.14 no.2
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    • pp.177-184
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    • 1997
  • Canine parvovirus(CPV) is a very highly contagious virus causing hemorrhagic enteritis and myocarditis mainly in young dogs. The diseases were first recognized in 1978, and then spread throughout the world by 1980. The main source of the infection seems to be the feces of infected dogs, at the same time feces are suitable materials for detection of virus in the enteric form exactly for the same reasons. Recently, a new technique of in vitro DNA amplification, Known as the polymerase chain reaction (PCR), has been widely applied to clinical viral diagnosis because of its sensitivity, specificity and rapidity. In this research, we attemped to set up the PCR for the detection of CPV in fecal samples and conformed the canine parvpviral enteritis by PCR. To increase the sensitivity and specificity of a PCR, the nested PCR (two-step PCR) was performed. We also surveyed the contamination status of CPV in the research using fecal specimen was highly sensitive and specific. Of the 100 fecal specimens suspected canine parvoviral enteritis, 45 fecal specimens were positive in HA test, 64 fecal specimens were positive in the first PCR, and 87 fecal specimens were positive in the second PCR. CPV contamination status of animal clinics and breeding centers was serious, wo hygienic management of environment in which dogs are reared is required. The nested PCR described here seems to be a rapid, sensitive and specific for the detection of canine parvovirus.

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A Study of the Design for the Korean Wheeled Armored Command Post Vehicle Using AHP (AHP 기법을 이용한 한국형 차륜형 지휘소차량 디자인에 관한 연구)

  • Kim, Gunkook;Kim, Seokhwan;Lee, Jeongyeob;Kim, Jeongwoo;Choi, Insuk;Lee, Jaewoo;Kim, Uiwhan
    • Journal of the Korea Institute of Military Science and Technology
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    • v.20 no.5
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    • pp.717-725
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    • 2017
  • Traditionally, a design has been applied on a various defense area for the improvement of the mobility, reducing the radar detection area and other reasons. In case of Korean Wheeled Armored Vehicle(WAV), a design has been also applied for retaining the agility and threatening feature in the battlefield. However some figures has been changed because of constraints such as assembling and manufacturing in the development stage. Today, the government has planned to develop the Wheeled Armored Command Post Vehicle(CPV), a variant of WAV, and it is necessary to apply the latest design trend, which is suitable for the concept of the CPV, on it.

Effect of structure configurations and wind characteristics on the design of solar concentrator support structure under dynamic wind action

  • Kaabia, Bassem;Langlois, Sebastien;Maheux, Sebastien
    • Wind and Structures
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    • v.27 no.1
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    • pp.41-57
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    • 2018
  • Concentrated Solar Photovoltaic (CPV) is a promising alternative to conventional solar structures. These solar tracking structures need to be optimized to be competitive against other types of energy production. In particular, the selection of the structural parameters needs to be optimized with regards to the dynamic wind response. This study aims to evaluate the effect of the main structural parameters, as selected in the preliminary design phase, on the wind response and then on the weight of the steel support structure. A parametric study has been performed where parameters influencing dynamic wind response are varied. The study is performed using a semi-deterministic time-domain wind analysis method. Unsteady aerodynamic model is applied for the shape of the CPV structure collector at different configurations in conjunction with a consistent mass-spring-damper model with the corresponding degrees of freedom to describe the dynamic response of the system. It is shown that, unlike the static response analysis, the variation of the peak wind response with many structural parameters is highly nonlinear because of the dynamic wind action. A steel structural optimization process reveals that close attention to structural and site wind parameters could lead to optimal design of CPV steel support structure.

Prediction survey on the viral diseases of companion animals in Gwangju area, Korea (광주지역 반려동물 바이러스 질병 예측 조사)

  • Na, Ho-Myung;Bae, Seong-Yeol;Lee, Yeun-Ey;Park, Jae-Sung;Park, Seong-Do;Kim, Eun-Sun;Kim, Yong-Hwan
    • Korean Journal of Veterinary Service
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    • v.36 no.3
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    • pp.187-192
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    • 2013
  • For the monitoring of six viral disease (CIV: canine influenzavirus, CPIV: canine parainfluenzavirus, CHV: canine herpesvirus, CPV2: canine parvovirus type 2, CCoV: canine coronavirus, CNV: canine norovirus) inspections, a total of 300 samples were collected nasal or feces from the companion dogs of animal hospital (n=98) and the abandoned dogs of animal shelters (n=202) in Gwangju, Korea. Using PCR and RT-PCR, CPV2, CPIV and CHV were detected in 55 (18.3%), 11 (3.7%), 1 (0.3%), respectively. CPV2 was highly detected in May, October and November. and CPIV was highly detected in November. But those agents were not detected the virus in March and July. Based on the results of the investigation continuous monitoring for companion and abandoned dogs will be required.

Outbreak of Canine Parvoviral Enteritis in Korea (개 파보바이러스성(性) 장염(腸炎)의 국내발생(國內發生))

  • Rhee, Young-Ok;Choi, Dae-Young;Park, Bong-Kyun;Han, Hong-Ryul;Hwang, Eui-Kyung;Yoo, Gyu-Yeon
    • Korean Journal of Veterinary Research
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    • v.22 no.2
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    • pp.171-174
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    • 1982
  • The disease syndrome characterized by the acute vomiting and diarrhea with high mortality had been greatly epidemic in Korea since June, 1931 and it was followed serologically and electron microscopically for the clarification of the agent. The agent present in feces of dogs associated with this syndrome had characteristic feature in agglutinating pig red blood cells that was specifically inhibited by anti-CPV reference dog serum. This also showed the serological identity with the reference CPV antigen in immuno-diffusion. Electron micrograph of the material revealed parvovirus particles with size of 20nm and icosahedral structure. These results clearly indicated that CPV was the primary cause of canine epidemic prevailing in 1981 in Korea.

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Modeling study on repeat purchase intention on silk products based on the electronic commercial platform

  • Shi, Rui;Li, Gaihang;Liu, Guolian
    • The Research Journal of the Costume Culture
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    • v.20 no.6
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    • pp.937-941
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    • 2012
  • Based on the literature on customer's repeat purchase intention, customer's repeat purchase intention was explored, customer's repeat purchase intention has been a crucial factor influencing consumer behaviors, In this research, the development of models on repeat purchase intention repurchase was indicated. Based on the electronic commerce platform, we focus on the customer's repeat purchase intention on silk products, This paper mainly explores the e-commerce purchase frequency (EPF), customer perceived value (CPV), perceived risk of e-commerce (EPR), and customer satisfaction (CS). The influence of the four factors on repeat purchase intention (RPI) is investigated. In the results, we found that CPV and CS have positive correlations with repeat purchase intention, The EPR has a negative correlation with RPI and has no significant influence on RPI. The result can provide meaningful suggestions for silk product retailers.

Electrical Characteristics of Mono Crystalline Silicon Solar Cell for Concentrating PV System using Fresnel Lenses (프레넬 렌즈를 이용한 집광 시 단결정 실리콘 태양전지의 전기적 특성)

  • Kang, Kyung-Chan;Kang, Gi-Hwan;Yu, Gwon-Jong;Huh, Chang-Su
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.218-219
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    • 2007
  • Silicon feed stock shortage have acted as major restraints for growth of photovoltaic industry. Concentrating photovoltaic (CPV) system will reduce the use of silicon PV materials. This paper presents the application possibility of mono-crystalline silicon solar cell, which has increased in market share, for PV concentrator. We measured the power of solar cell using sun simulator and I-V curve tracer and compared the results. The comparison of results showed that the concentrated solar cell generated the power more approximately 7 times than without concentration in spite of non-heat sink. If CPV technology included heat sink combines already developed PV tracking system, it will have a merit economically.

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A Forensic Engineering Study on Bursting Accident of Composite Pressure Vessel in CNG Bus (CNG버스 복합재 압력용기 파열사고에 관한 법공학적 연구)

  • Kim, Eui-Soo;Kim, Jin-Pyo;Park, Nam-Kyu;Kim, Youn-Hoi
    • Journal of the Korean Society of Safety
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    • v.23 no.5
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    • pp.15-21
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    • 2008
  • The bus using compressed natural gas(CNG) trend to be extended in use internationally as optimal counter-plan for reducing discharge gas of light oil due to high concern about environment. But, Composit pressure vessels(CPV) to be equipped with CNG bus is always involved in the point that safety accidents happen due to having compressed natural gas. In this report, we analysis the cause of CPV bursting accident by reviewing design and manufacture factor and suggest preventive measure through this case.

Overview of the Korean Neutrino Observatory

  • Kim, Soo-Bong
    • The Bulletin of The Korean Astronomical Society
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    • v.43 no.2
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    • pp.29.2-29.2
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    • 2018
  • Korean Neutrino Observatory (KNO) aims to make important discoveries in particle physics and astronomy by building a gigantic neutrino telescope consisting of 260 kiloton water and 40,000 20 inch photomultiplier tubes. Using J-PARC neutrino beam, leptonic CP violation (CPV) could be discovered if the CP is maximally violated, and neutrino mass ordering is guaranteed to be determined with more than 6 sigma for any CPV value. As a neutrino telescope, solar and Supernova burst/relic neutrinos could be studied very precisely. Indirect dark matter search sensitivity is improved by 3 to 4 times than that of Super Kamiokande. There are several candidate sites in Korea and especially Mt. Bisul and Mt. Bohyun are very promising according to our site survey. In this talk, an overview of the KNO is presented.

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