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재일한국인(在日韓國人)에 對(대)한 사회의학적조사(社會醫學的調査)
김병우,Kim, Byong-Woo 대한예방의학회 1973 예방의학회지 Vol.6 No.1
Socio-medical survey was carried out on six hundred and thirty Korean households in the cities of Tokyo, Osaka, Kyoto, and Nagoya in Japan from Nov. 1972 to Dec. 1972, and following results were obtained. 1. Age distribution of households showed the highest occurence in the group of 40 to 49 years of age in the both sexes. Families with five members showed highest occurence, and the average number of familial members was 5.7 persons per one household. 2. More than half of the householders were some independent enterprisers rather than to be the employees and most of the household had one familial member engaged in more or less liberal profession. 3. 19.4% of households moved into these cities from 1941 to 1945. 4. 40.5% of all the households had their own houses. The possession rate of one's own house was higher in the households which had long period of residence in Japan. 5. 83.5% of all households had various medical insurances. And the 6.2% of the household which had no insurance stated that the reason for not being affiliated was 'because to be the foreigner'. Household of shorter dwelling period had less tendency to be affiliated to the various insurances. 6. In 41.3% of all the households, average medical expenditure amounted to 1000-5000 Yen per month. And only 25.6% of household stated that they do not worry about the medical expenditure for the futures. 7. 66.3% of households were consulting to medical doctors for their sickness, such as toothache, severe coughing, profuse sputum, children's fever and stomach pain etc. 8. 59.4% of households were using the facilities of health center services. The health center service was used mainly for individual health service rather than the environmental aspect. And 19.8% of households were not aware of health center activities. 9. It was found that 23.5% of households received the screening test of the tuberculosis and adult diseases. Especially, the rate of screening test of the adult diseases showed as following ; stomach cancer, 8.9% ; hypertension, 7.9% ; diabetes mellitus, 2.1% ; and uterus cancer, 1.6%. 10. Birth control was carried out in 17.3% of households but not in 52.5%. The chief reason of birth control was 'because of poor maternal health' (40.0%) or 'should not be done' (5.4%). 11. Most of them are obtaining the knowledges and informations on family plannings. public nuisance problems and nutritions etc. by means of the mass communications, while those no preventing diseases and the environmental hygiene through the administrative organizations.
적은 소자수를 갖고 전해커패시터가 없는 단일단 인터리브드 토템폴 전기자동차 탑재형 충전기
김병우,조우식,최세완 전력전자학회 2017 전력전자학회 논문지 Vol.22 No.6
This paper proposes a single-stage interleaved totem-pole on-board battery charger with a simple structure and a reduced component count. Apart from achieving ZVS turn-on of all switches and ZCS turn-off of all diodes, this charger does not require an input filter due to its CCM operation and bulky electrolytic capacitors, which in turn result in a high power density. A single-stage power conversion technique is applied to the interleaved structure in order to achieve a high power density and high efficiency. A 2.5 kW prototype of the proposed charger is also built and tested to validate the proposed operation.
검정소 검정돈의 경제형질에 대한 개량추세와 환경적인 요인분석에 관한 연구
김병우,이정규,박종원,김희열,최진성 경상대학교 농업생명과학연구원 2008 농업생명과학연구 Vol.42 No.1
This study analyzed the improvement trend and environmental factors for major economic traits on average daily gain(ADG), backfat thickness(BF), Age at 90kg, feed conversion(FC), lean percent(LP), and selection index of 19,575 heads of the Duroc, Landrace, and Yorkshire breeds which had been tested in the KSA-authorized 1st and 2nd swine testing stations for five years from 2000 to 2004. There were significant differences among the breeds for all traits except selection index. The ADG and Age at 90kg of Duroc were the best at 1030.66±1.513g and 136.12±0.170 days, and those of Yorkshire were the worst at 996.20±1.322g and 139.37±0.148 days. All traits showed significant differences by birth year. ADG tended to get better progressively over the birth years. Age at 90kg was the longest in 2000 at 139.73±0.218 days, but shortened a little after 2003. 본 연구는 2000년부터 2004년까지 5년 동안 대한양돈협회 공인 제1, 제2종돈능력검정소에서 검정이 완료된 Duroc종, Landrace종, Yorkshire종의 3개 품종 19,575두를 대상으로 돼지의 주요 경제 형질인 일당증체량, 등지방두께, 90kg 도달일령, 사료요구율, 정육율 및 선발지수에 대한 개량추세와 환경적인 요인을 분석하였다. 품종의 효과에 있어서 선발지수를 제외한 모든 형질에 있어 유의성이 있었는데, 일당증체량과 90kg 도달일령은 듀록종이 가장 우수하였고, 그 다음이 랜드레이스, 요크셔종 순으로 나타났다. 조사된 모든 형질에 있어 검정 연도 간에 유의한 차이를 보였으며, 일당증체량의 경우 연도가 경과함에 따라 점점 우수해지는 경향을 보였다. 90kg 도달일령은 2000년도에 139.73±0.218일로 가장 불량하였으나, 2003년 이후 다소 짧아진 것으로 나타났다. 각 형질별 개량추세를 보면 등지방두께를 제외한 일당증체량과 사료요구율 및 90kg 도달일령은 매년 높은 수준으로 개량되고 있으며, 특히 등지방두께는 최근 우리 국민의 고품질 우수 돈육 수요와 사육농가의 모돈 내구성 요구에 의해 오히려 두꺼운 방향으로 개량이 요구되고 있다.