• 한국시뮬레이션학회논문지
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• 제29권3호
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• pp.57-72
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• 2020

북한 장사정포 위협에 대응하기 위해서는 한국형 장사정포요격체계 구축이 필요하다. 본 연구는 북한 장사정포의 위협에 대응하기 위한 요격체계의 운영개념 정립과 운용 효과도 프로세스를 개발하는 것을 목적으로 하였다. 먼저 장사정포요격체계의 운영개념을 설정하고, 다대다 교전 상황에서 효과도의 개념과 이를 도출하기 위한 프로세스를 수립하였으며, 이를 바탕으로 실제 효과도를 분석하기 위한 도구를 개발하였다. 그리고 다대다 교전 상황에서 효과도에 영향을 미치는 요인을 알아보기 위하여 탐지자산, 교전통제, 발사대 성능 등 다양한 변수들을 조합하여 시뮬레이션 실험을 수행하고 분석하였다. 그 결과 유도탄 성능 외에도 탐지자산, 교전통제소 성능이 요격률과 방어성공률에 얼마나 영향을 미치는지를 알 수 있었다. 이러한 연구 결과는 향후 무기체계 개발에 있어서 다대다 교전 상황에서의 효과도 측면에서 중요한 성능 지표를 이해하고 달성하고자 하는 수준의 방어성공률을 위해 필요한 각 요소의 개발 방향과 목표값 설정을 판단하는 데에 활용될 수 있을 것이다.

• Asian-Australasian Journal of Animal Sciences
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• 제32권3호
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• pp.320-333
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• 2019

Objective: The Shanghai Holstein cattle breed is susceptible to severe mastitis and other diseases due to the hot weather and long-term humidity in Shanghai, which is the main distribution centre for providing Holstein semen to various farms throughout China. Our objective was to determine the genetic mechanisms influencing economically important traits, especially diseases that have huge impact on the yield and quality of milk as well as reproduction. Methods: In our study, we detected the structural variations of 1,092 Shanghai Holstein cows by using next-generation sequencing. We used the DELLY software to identify deletions and insertions, cn.MOPS to identify copy-number variants (CNVs). Furthermore, we annotated these structural variations using different bioinformatics tools, such as gene ontology, cattle quantitative trait locus (QTL) database and ingenuity pathway analysis (IPA). Results: The average number of high-quality reads was 3,046,279. After filtering, a total of 16,831 deletions, 12,735 insertions and 490 CNVs were identified. The annotation results showed that these mapped genes were significantly enriched for specific biological functions, such as disease and reproduction. In addition, the enrichment results based on the cattle QTL database showed that the number of variants related to milk and reproduction was higher than the number of variants related to other traits. IPA core analysis found that the structural variations were related to reproduction, lipid metabolism, and inflammation. According to the functional analysis, structural variations were important factors affecting the variation of different traits in Shanghai Holstein cattle. Our results provide meaningful information about structural variations, which may be useful in future assessments of the associations between variations and important phenotypes in Shanghai Holstein cattle. Conclusion: Structural variations identified in this study were extremely different from those of previous studies. Many structural variations were found to be associated with mastitis and reproductive system diseases; these results are in accordance with the characteristics of the environment that Shanghai Holstein cattle experience.