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오리알의 卵黃, 卵白 및 卵殼중 微量鑛物質의 含量分布에 관한 硏究
이명헌,김상근,이종진 충남대학교 수의과대학 동물의과학연구소 1994 動物醫科學硏究誌 Vol.2 No.-
This study was to assayed 9 trace minerals of Ca, P, K, Na, Mg, Fe, Zn, Cu, Mn in duck's egg yolk, egg white and egg shell by with Inductively Coupled Argon Plasma(ICAP). The results summarized as follows: 1. The levels of Ca, P, K, Na, Mg in duck's egg yolk, egg white and egg shell were 747.9ppm, 2216.6ppm, 620.0ppm, 345.5ppm, 30.9ppm and 52.9ppm, 136.5ppm, 1127.2ppm, 1638ppm, 69.1ppm and 220ppm, 814.6ppm, 298.0ppm, 535.2ppm, 812.2ppm, 1447.8ppm, respectively. The levels of K and Na of duck's egg are the highest compared with that of another constituents in eggs. 2. The levels of Fe, Zn, Cu, Mn in duck's egg yolk, egg white and egg shell were 22.7ppm, 14.3ppm, 0.98ppm, 0.25ppm and 5.0ppm, 0.29ppm, 0.48ppm, 0.02ppm and 3.4ppm, 2.1ppm, 0.96ppm, 0.56ppm, respectively.
한명철,김정관,최명욱,이왕근,김헌주 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-
The dental high-speed handpiece is one of the most popular and important devices that has been widely used as the main means of cutting tooth structure and restorative materials in dentistry, In consideration of usage and marketability of the dental handpiece, it is obviously worthy of investigating it. In this paper, a high speed dendal handpiece is developed through reverse engineering with 3D X-Ray CT equipment and wire cutter for the Mark II model in NSK. The demension of the handpiece parts is obtained through this process, and 3D modeling is performed with CATIA V5. The interference between parts can be examined through the part assembly in CATIA, and the performance is finally compared with Mark II model in NSK.
Damage and Seasonal Occurrence of Arboridia spp. in Grapevine Export Complexes in Korea
Chae Min Lee,Dong Woon Lee,Suk Jun Lee,Jin Sun Song,Tae Heon Lim,Sang Sub Han,Sang Myeong Lee,Hyeong Hwan Kim,Myoung Rae Cho 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.04
This report is a part of research on pests occurring in grapevine orchards in export complexes (Hwangsung in Gyeonggi, Sangju and Yeongcheon in Gyeongbuk, Namwon in Junbuk and Yeongdong in Chungbuk) from 2010 to 2012. This research was conducted to evaluate the distribution and difference in damage rates depending on management types of grapevine orchards (domestic sale farm vs. export farm). Damage by Arbordia spp. occurred only in 2010 and differed depending on localities and individual farms in the same area. Numbers of orchards damaged by Arbordia spp. were one, two and four in Hwasung, Namwon and Sangju, respectively, and the damage rate was below 6.2%. There was no damage in the orchards in 2011 and 2012, however, Arbordia spp. were collected on sticky traps in the orchards. A. nigrigena and A. kakogawana were the dominant species in Yeongcheon and Yeongdong, respectively, in 2011. A. kakogawana, A. maculifrons and A. nigrigena were collected on sticky traps in 2012. Collected numbers of Arbordia spp. were different depending on localities and management types of the orchards (domestic sale vs. export). A. kakogawana was the dominant species in all the survey sites and the densities were higher in the domestic sale farms than in the export farms.
Seroepidemiology of HBV Infection in South Korea , 1995 through 1999
(Myoung Kuk Jang),(Ja Young Lee),(Jin Heon Lee),(Yong Bum Kim),(Hak Yang Kim),(Myung Seok Lee),(Choong Kee Park),(Jae Young Yoo) 대한내과학회 2001 The Korean Journal of Internal Medicine Vol.16 No.3
N/A Background: We analyzed serologic data that were obtained from the Korea Association of Health from 1995 to 1999 to estimate the reliable prevalence of HBV in South Korea. Methods: 603, 375, 639, 465, 621, 476, 612, 705 and 650, 398 serum samples were annually tested for HBsAg. Of HBsAg positive persons whose serum samples were available, HBeAg positivity was checked. Results: HBsAg positivities among subjects between 6 and 19 years old were 8.2 %, 3.9 %, 2.1%, 2.6 % and 1.3 %. HBsAg positivities among subjects above 20 years old were 8.9 %, 6.4 %, 5.9 %, 5.4 % and 5.4 %. The positive rates of HBeAg were 39.8 to 62.9 % among subjects between 6 and 19 years old, and 18.3 to 37.9 % among persons above 20 years old, in each year. In both subgroups, HBsAg positivity in the latter year was significantly lower than that in the former year (p<0.001). It also showed that HBsAg positivities among subjects between 6 and 19 years old have been significantly lower than those among subjects above 20 years old, but those of HBeAg the exact reverse of HBsAg since 1996. Conclusions: It was observed that prevalence of HBV infection in the late 1990s, especially in the group between 6 and 19 years old, was conspicuously lower than that in the past. The nationwide vaccination programme might be one of the most important contributors to this tendency in Korea.
HPLC를 이용한 육류중 바이피리딜리움계 제초제 잔류분석
이희수,이혜숙,조병훈,김병용,이광직,이명헌,박은정,김문배,이성모,조준형,박종명,정갑수,김옥경 한국수의공중보건학회 2001 예방수의학회지 Vol.25 No.4
A simultaneous and rapid method for determination of bipyridylium herbicides, paraquat dichloride and diquat dibromide have been developed in meat using high-performance liquid chromatography (HPLC) at UV 255/310nm. It is possible to detect effectively below maximal residue levels (MRL) set in CODEX and Korea with little amount of sample. Based on the collaborative studies in 3 laboratories, the mean of recovery within laboratory repeatability were 108.7%, 93.5% and 105.7%, respectively and the coefficient of variation were 6.9%, 9.8% and 12.1% in paraquat analysis. In case of diquat analysis, the mean of recovery were 86.3%, 87.0% and 86.3%, respectively and the coefficient of variation were 13.2%, 8.9% and 7.6%, respectively of which results would be acceptable to recommended guideline of CODEX. In addition, the coefficient of variation between laboratory repeatability were 7.9% and 9.7% in paraquat and diquat, respectively which would be also acceptable to the guideline of CODEX. In conclusion, the present method which would be equivalent to an official method of analysis makes feasible both for qualified determination in meat and for precise diagnosis of intoxification caused by paraquat and diquat, bipyridylium herbicides.
Bovine tuberculosis in an Asian small-clawed otter (<i>Aonyx cinerea</i>) in the Republic of Korea
Lee, Hyunkyoung,Kim, Jae-Myung,Jang, Yunho,Lee, Kyunghyun,Baek, Kanghyun,Lee, Boram,Kim, Ha-Young,Lee, Myoung-Heon,Ryoo, Soyoon,Bae, You-Chan,Choi, Eun-Jin,So, ByungJae SAGE Publications 2015 Journal of veterinary diagnostic investigation Vol.27 No.5
<P>Bovine tuberculosis caused by <I>Mycobacterium bovis</I> has a wide range of hosts including cattle and humans, but its incidence in otters is very rare. Our report describes a case of bovine tuberculosis in an Asian small-clawed otter (<I>Aonyx cinerea</I>). A deceased female otter ~2–3 years of age that was raised in an aquarium was submitted to the Animal and Plant Quarantine Agency (Anyang, Republic of Korea) for autopsy in June 2013. Following gross pathological examination, many white nodules were observed in the lungs and mesentery. The nodules showed central necrosis infiltrated with lymphocytes and macrophages and surrounded by fibrous tissue. Acid-fast bacteria were detected in the necrotic foci, but no fungi were observed. Molecular analysis led to the detection of <I>M. bovis</I>, which is identified in otters in some European countries such as Spain and France.</P>
Lee, Ja Myoung,Lee, Young Seok,Kim, Young Baeg,Park, Seung Won,Kang, Dong Ho,Lee, Shin Heon The Korean Neurosurgical Society 2017 Journal of Korean neurosurgical society Vol.60 No.2
Objective : The objective of this study was to analyze the correlation between further compression and necrotic area in osteoporotic vertebral fracture (OVF) patients with contrast-enhanced magnetic resonance imaging (CEMRI). In addition, we investigated the radiological and clinical outcome according to the range of the necrotic area. Methods : Between 2012 and 2014, the study subjects were 82 OVF patients who did not undergo vertebroplasty or surgical treatment. The fracture areas examined on CEMRI at admission were defined as edematous if enhancement was seen and as necrotic if no enhancement was seen. The correlation between further compression and the necrotic and edematous areas of CEMRI, age, and bone mineral density was examined. Also, necrotic areas were classified into those with less than 25% (non-necrosis group) and those with more than 25% (necrosis group) according to the percentages of the entire vertebral body. For both groups, further compression and the changes in wedge and kyphotic angles were examined at admission and at 1 week, 3 months, and 6 months after admission, while the clinical outcomes were compared using the visual analog scale (VAS) and Eastern Cooperative Oncology Group (ECOG) performance status grade. Results : Further compression was $14.78{\pm}11.11%$ at 1 month and $21.75{\pm}14.43%$ at 6 months. There was a very strong correlation between the necrotic lesion of CEMRI and further compression (r=0.690, p<0.001). The compression of the necrosis group was $33.52{\pm}12.96%$, which was higher than that of the non-necrosis group, $14.96{\pm}10.34%$ (p<0.005). Also, there was a statistically significantly higher number of intervertebral cleft development and surgical treatments being performed in the necrosis group than in the non-necrosis group (p<0.005). Moreover, there was a statistical difference in the decrease in the height of the vertebral body, and an increase was observed in the kyphotic change of wedge angle progression. There was also a difference in the VAS and ECOG performance scales. Conclusion : The necrotic area of CEMRI in OVF had a strong correlation with further compression over time. In addition, with increasing necrosis, intervertebral clefts occurred more frequently, which induced kyphotic changes and resulted in poor clinical outcomes. Therefore, identifying necrotic areas by performing CEMRI on OVF patients would be helpful in determining their prognosis and treatment course.
메틸렌블루 비색법을 이용한 원유중 음이온 계면활성제의 분석
이희수,이명헌,정갑수,조병훈,이광직,이승환,김정임,김문배,박종명,조준형,김옥경 한국수의공중보건학회 2001 예방수의학회지 Vol.25 No.4
A determination method for anionic surfactants residue in raw milk was established using methylene blue method. The residue in raw milk was first precipitated with acetonitril, seperated by centrifugation, concentrated by evaporation of supernatant, dissolved with distilled water, allowed to complex formation by adding the methylene blue and extracted with chloroform. The final was analysed and quantified by spectrophotometry. Based on the collaborative studies in 3 laboratories after spiking 5 to 20 ppm of standard solution, the mean of recovery rate within laboratory repeatability were 85.9%, 104.6% and 94.9%, respectively and the coefficient of variation were 9.3%, 9.8% and 6.4%. In addition, the coefficient of variation between laboratory repeatability was 16.1% which would be acceptable to the recommended guideline of CODEX. In conclusion, the present method makes feasibilities for quantified and qualified determination of anionic surfactants residue in raw milk.