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자연산 숭어(Mugil cephalus)의 Myxobolus sp. 감염증
김위식,이무근,박경희,정성주,오명주 한국어병학회 2003 한국어병학회지 Vol.16 No.1
2002년 2월 광양만에서 자연 서식하는 숭어에서 폐사가 발생하였다. 그 폐사 원인을 조사하는 과정에서 Myxobolus sp.의 감염을 확인하여, 본 연구에서는 병리조직학적 검사를 통한 Myxobolus sp.의 감염증을 보고하게 되었다. Myxobolus sp.의 cyst는 숭어의 장간막, 간, 아가미 및 인두낭에서 관찰되었으며, 병리조직학적 검사에서 Myxobolus sp.의 전신감염을 확인할 수 있었다. 감염 충체는 길이 10-12 ㎛, 폭 9-10 ㎛, 두께 6.4-7.2 ㎛의 크기로서 체내에 길이 4-5.2 ㎛, 폭 2.5-3.3 ㎛의 2개의 극낭을 가지고 있었다. The mortality of wild mullet, Mugil cephalus was detected in Kwang-Yang bay on February, 2002. The mullet were infected with Myxobolus sp., the cysts of Myxobolus sp. were found in the mesentery, liver, gill and pharyngeal pocket. The histological findings suggested a systemic infection by the Myxobolus sp.. The spores were measured 10-12 (10.9)㎛ in length, 9-10 (9.4) ㎛ in width, 6.4-7.2 (6.8) ㎛ in thickness, with polar capsules of 4-5.2 (4.4) ㎛ in length and 2.5-3.3 (2.9) ㎛ in width.
이주열,김정근,김무채 한국보건통계학회 1995 한국보건정보통계학회지 Vol.22 No.1
Among numerous health indicators to evaluate the regional health status, life expectancy is recognized as the one of best indicators. Dud to inaccuracy of age specific death rate the regional life table is constructed after the age-specific death rate of each region is corrected by Brass logit system. 1. The life expectancy of life table constructed by corrected mortality rate is higher than that of non-corrected one. 2. The life expectancy in 1990 is 69.46 years for males and 76.97 years for females. 3. The life showed highest life expectancy is Seoul : 72.46 years for male and 79.33 for female respectively. 4. The life expectancy of metropolitan regions including Seoul is higher than that of all other regions. And also the sex difference of life expectancy of metropolitan including Seoul is smaller than that of all other regions at all age groups. 5. By time series analysis we observed little change of rank order of life expectancy by regions : The life expectancy for female in Seoul ranks top among all regions for the years 1975 and 1990 while that of Cheju is the highest in year 1998. Junnam shows the lowest life expectancy both males and females throughout all observed years.
임무창(Mu-Chang Lim),명차리(Cha-Lee Myung),박심수(Simsoo Park),박정남(Jeong-Nam Park),김성근(Sung-Kun Kim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_1
Liquified Petroleum injection (LPi) system has strong points in which it can increase engine performance with less penalty in volumetric efficiency, and that it can reduce exhaust emissions with more precise injection control. The purpose of this study is development of turbine type LPi pump which has lower cost than conventional vane type. in addition to this, the durability and noise performance need to be equivalent characteristics with vane type pump. Pump test rig has been designed and manufactured to evaluate the performance of LPG fuel supply system including fuel pump, tank and pressure regulator. This experimental results showed that series connection of two fuel pump has advantage for pressure. Flow rate of turbine type LPi fuel pump can be changed variously with PWM duty control logic. And max flow rate of turbine type LPi fuel pump decrease about 46% in LPG compared with gasoline.
LPG연료 조성비에 따른 터빈방식 LPi용 연료펌프의 성능 및 엔진적용특성에 관한 연구
임무창(Mu-Chang Lim),최성원(Seong-Won Choi),명차리(Cha-Lee Myung),박심수(Simsoo Park),박정남(Jeong-Nam Park),김성근(Sung-Kun Kim) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
BLDC type fuel pump for Liquified Petroleum injection (LPi) system has complicated structure and expensiveness. So in this study turbine type fuel pump made simple structure is possible as a substitute for BLDC type fuel pump, which was tested. This study shows that flow rate and fuel injection of turbine type fuel pump were equivalent or better performance comparing to BLDC type fuel pump. And as the turbine type fuel pump was equipped in the LPG fuel tank, possibility of mass production was founded for the noise characteristic. Also engine performances with respect to the pump change were equivalent or better than BLDC.
김정근(Jong-Kun Kim),이승욱(Seung-Wook Lee),이주열(Ju-Yul Lee),김무채(Mu-Chae Kim) 한국인구학회 1996 한국인구학 Vol.19 No.2
이 논문은 인구자질정책을 전개하는 데 필요한 기초적인 정보를 제공하기 위하여 실시된 임신추적조사의 결과이다. 경기도 가평군 전지역을 대상으로 1993년 11월 3일부터 1995년 12월 31일까지 유배우 여성이 경험한 모든 임신을 추적조사하여 임신경과와 그 결과를 관찰하였다. 조사기간중 782건의 임신이 관찰되었는데, 이중 642건은 최종 임신종결 형태가 확인되었으며 140건은 전출 및 조사종료에 따라 관찰이 중단되었다. 본 연구에서는 임신추적조사 자료로 태생기 생명표를 작성하여 그 생명현상을 분석하였다. 태생기 생명표에 따른 임신종결확률은 출생률 53.5%, 태아사망률 14.5%, 인공유산율 32.0%로 전임신기간을 통해서 46.5%의 임신손모가 있었으며, 태아주령에 따른 임신종결확률의 곡선모양은 인공유산율과 태아사망률 모두 L형을 나타내었다. 한편 인위적으로 임신을 중단시키는 인공유산을 제외했을 경우의 태아시망확률은 21.9%였다. 본 연구의 결과에 따르면 임신 초기에 태아사망이나 인공유산과 같은 임신손모에 의해 태생기의 생명이 상당히 손실되고 있는 것으로 나타났다. 따라서 임신손모를 방지하기 위한 대책이 이루어져야 할 것이다. This study was carried out to provide the basic information for the implementation of population quality policies by analyzing fetal life. The outcomes and process of all the pregnancies of women with spouses living in Gapyung-gun, Kyunggi province from November 3, 1993 through December 31, 1995 were analyzed. The results of the study are as follows: According to the fetal life table, the estimated probability of pregnancy outcome showed 53.5% of live birth, 14.5% of fetal death, 32.0% of induced abortion, which resulted in 46.5% of pregnancy wastage throughout gestation period. The curve of the estimated probability of pregnancy outcome by gestation weeks showed L shape in case of total pregnancy wastage rate, induced abortion rate and fetal death rate. The estimated probability of fetal death was 21.9% in case that the induced abortion was excluded, which was 7.4% higher than the case that induced abortion was included. The expected duration of pregnancy was 22.9 weeks until the fourth week of gestation and then started to become the highest, 26.6 weeks at the tenth week. At the 11th week, it declined to decrease to 26.4 weeks. This is attributed to the fact that the pregnancy wastage including fetal death and induced abortion ocurred in the early period of pregnancy. The establishment of appropriate policies to cope with this situation are needed.