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박영일,전호종,Seung Jegal,Myung-Deok Kim-Jeon,Jong Yul Roh,Wook-Gyo LEE,Seo Hye PARK,Seong Kyu AHN,Jinyoung LEE,Young Woo GONG,Mun Ju Kwon,Tong-Soo KIM 한국곤충학회 2020 Entomological Research Vol.50 No.1
Owing to global climate change, the global resurgence of vector-borne infectious diseases and their potential to inflict widespread casualties among human populations has emerged as a pivotal burden on public health systems. In this study, the prevalence of flaviviral diseases transmitted by mosquitoes, and their target vector diversity, abundance, and distribution was investigated to enable the mapping of hotspots for these diseases. For the surveillance of the vector mosquitoes carrying flaviviruses during April to November 2015, female mosquitoes were collected to study whether they carried pathogens from abroad at seven locations in Incheon Metropolitan City (Incheon) as a typical urban area and Hwaseong-si (= city, Hwaseong) of Gyeonggi-do (= province) as a rural area. A total of 15 species belonging to seven genera (29,102 female mosquitoes) were collected with blacklight and BG-Sentinel™traps at a collection rate of 260 per trap/night from whole collection locations. The most collected mosquito species in Incheon were Aedes vexans nipponii (species ratio (SR), 29.9%) and the Culex pipiens complex (SR, 28.8%), followed by Anopheles sinensis s.l. (SR, 27.9%) and Ochlerotatus koreicus (SR, 7.1%). From the results of viral RNA detection, five flaviviruses were found in 20,981 individuals (excluding An. sinensis 696 pools) in the Cx. pipiens complex and Ae. vexans nipponii. Three Japanese encephalitis virus (JEV)-positive pools were from the Cx. pipiens complex, a Chaoyang virus pool was found from Ae. vexans nipponii, and the remaining unidentified flavivirus pool was from Cx. pipiens. The three JEV-positive pools were phylogenetically grouped as genotype V. The results of our study demonstrate that enhanced monitoring and long-term surveillance of these vector viruses are of great public health importance.
박영일,백동훈 ( Y . I . Park,D . H . Baik ) 한국축산학회 1973 한국축산학회지 Vol.15 No.4
The purpose of this experiment was to compare the performance of the crosses of seven different stocks to Cornish males for broiler production. The seven stocks used as female parents were White Plymouth Rocks, Columbians, Barred Plymouth Rocks, New Hampshires, Stock D, Stock C, and Stock H. The first four stocks, WR, Columbian, BR, and NH were the pure Strains that had been maintained at the College of Agriculture, Seoul National University. The Stock D was the female parent stock of a broiler stock produced by a Korean Poultry Breeding Farm. The stocks C and D were the commercial chicken of two different broiler stocks imported from abroad. The commercial chicks of the imported Hubbard Broilers were used as the control to compare with the seven different crosses mentioned above. The average body weight at 8 weeks of age was 1,596 grams for the Hubbard Broilers, 1,563 grams for the C×Cornish, and 1,544 grams for the H×Cornish, all of which were significantly larger than those of other stocks compared. The income per bird over the cost of feed and day-old chick was largest for the C×Cornish, followed in rank by the H×Cornish, Hubbard Broilers, D×Cornish, Columbian×Cornish, NH×Cornish, BR×Cornish, and WR×Cornish. The superior performance of the C×Cornish and H×Cornish appeared to be due to the effect of the genes transmitted from their dams. The hens of the Stock C had a higher rate of laying, and had a heavier egg weight than those of the Stock H. The age at 50% production was 196 days for the Stock C, 195 days for the Stock H and 179 days for the Stock D. The average body weight of the hens at 30 weeks of age was about 3.2㎏ for both Stocks C and H.
위험직종(危險職種) 분류(分類)에 따른 난청(難聽)의 고찰(考察)
박영일,Park, Young-Il 한국생명보험의학회 1985 保險醫學會誌 Vol.2 No.1
The basis for determining hearing disturbance adopted by the Life Insurance Industry is the loss of hearing power above 80 db on either or both sides, in accordance with the divide sixth method of audiometric test. Different types of small-to-medium-sized enterprises were chosen for the study of the extent of loss and the power of hearing. The following are the findings: 1. The disturbance percentage found among the types of occupation and different levels of age was found to be higher as the subject's ages increased. 2. The heavier the workload and the noisier the environment, the higher the percentage of disturbance. The average percentage of the subjects turned out to be 24.35%. Those engaged in sawing and wood-work showed 49%. Those engaged in machinery and equipment for transportation accounted for 42.6%. Those engaged in the metal products occupied 39.6%. The disturbance percentage among those engaged in such noisy works as press, pipe and sawing showed 32.52%. 28.46% of those workers with three to four years employment turned out to be disturbed in hearing. Of these, a high percentage of 43.9% showed disturbance in conversation or talk. 3. No hearing loss due to occupation beyond the Life Insurance standard of 80 db was found; therefore, the present status poses no problem. Constant attention, however, is needed.