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콘크리트 구조물의 군열원인 평가를 위한 전문가 시스템 연구
형상수 陸軍士官學校 2001 한국군사학논집 Vol.57 No.-
In general, concrete develops cracks because of one or more of the reasons; heat of hydration, alkali aggregate reactions, over loading or abnormal loading, and other factors, Traditionally, the assessment of cracks in concrete structures was done by experienced engineers only; however, expert systems have been developed to save time, make expertise more widely available, and simplify decision making. The characteristics of cracks are difficult to describe precisely. These caracteristics include how long after casting cracks develop, whether cracks are regular or irregular, the types of concrete members that develop cracks, crack patterns. Fuzzy pttern recognition was employed to identify fuzzy relationship between the cause of cracking and the characteristics that crack exhibit. Rule was combined to revise the degree of confirmation of each cause of cracks.
전북 익산지역 젖소에서 네오스포라, 요네병, 백혈병 및 브루셀라에 대한 항체가 조사
추금숙 ( Keum Suk Chu ),형상기 ( Sang Gi Hyong ),임정철 ( Jeong Cheol Im ),서이원 ( Lee Weon Seo ) 한국동물위생학회 2007 한국동물위생학회지 (KOJVS) Vol.30 No.1
The purpose of this study was to investigate the seroprevalence of infection with the production-limiting diseases in dairy cattle in Jeonbuk-Iksan area. The blood samples were collected from 260 dairy cows in 52 herds, and examined. The antibody rates against N caninum, M paratuberculosis, and bovine leukemia virus were 34.6%, 13.5% and 89.6%, respectively. All samples for bovine brucellosis were negative.
전북 익산지역 양돈장에서 돼지생식기호흡기 증후군, 써코바이러스-2 및 마이코프라즈마 폐렴의 항체가 조사
추금숙 ( Keum Suk Chu ),형상기 ( Sang Gi Hyong ),이지영 ( Ji Young Lee ),김지영 ( Ji Young Kim ),서이원 ( Lee Weon Seo ),정병우 ( Bung Woo Jung ) 한국동물위생학회 2007 한국동물위생학회지 (KOJVS) Vol.30 No.3
The present studies was to seroepidemiological investigation with the related pneumonia due to a combination of both viral and bacterial agents. In selected herd in Jeonbuk-Iksan area of swine farms in 2006. The seroprevalence of antibody titers of PRRS, PCV-2 and mycoplasmal pneumonia were 87.2%, 69.8% and 47.4%, respectively. High seroprevalence of antibody in sow indicate that the infected sow major source of the diseases, and play an important role in circulation between production stage.
송형상 ( Hyung Sang Song ),이준희 ( Joon Hee Rhee ) 한국파생상품학회(구 한국선물학회) 2015 선물연구 Vol.23 No.4
본 논문은 지방정부의 청렴도가 지방채 발행금리에 미치는 영향을 연구한다. 청렴도를 나타내는 첫 번째 대리변수는 국민권익위원회에서 발표하는 청렴도지수이며, 청렴도지수가 높을수록 지방정부의 청렴도가 높다는 의미이다. 청렴도의 두 번째 대리변수는 백만 명당 지방공무원의 범죄건수이다. 인구당 지방공무원의 범죄건수가 적은 지방정부는 청렴도가 높다고 볼 수 있다. 회귀분석 결과, 지방정부의 청렴도지수는 지방채 발행금리와 유의한 음의 관계가 존재하며, 청렴도지수 한 단위가 상승할 때, 지방채 발행금리는 0.34%가 하락하는 것으로 나타났다. 지방채 발행금리가 비교적 높았던 금융위기 전기간에 청렴도가 발행금리에 미치는 영향의 민감도가 더 높다. 연구의 결과는, 지방정부의 청렴도를 개선시킴으로써 지방정부의 자본조달 비용을 낮출 수 있다는 시사점을 지닌다. We study whether the integrity of local governments has effects on municipal bond coupon rate. We conjecture that higher integrity is associated with lower bond coupon rate. One of proxies for the integrity is the integrity index which Anti-Corruption and Civil Rights Commission of Korea announces annually. The high degree of the index implies high integrity. We also use the number of crimes by local government officials as the integrity measure. Empirical results show that Increasing a unit of integrity is equivalent to decreasing 0.34% of municipal coupon bond. The sensitivity of the integrity to municipal bond coupon rate is stronger before 2007-2008 financial crisis, when the coupon rate was higher, than after the crisis. Overall, our results imply that local governments could save financing cost by improving the integrity of the governments.