In the design of a spent-fuel (SF) storage, the consideration of burnup credit brings the benefits in safety and economic views. According to it, various SF burnup measurement systems have been developed to estimate high fidelity burnup credit, such as FORK and SMOPY. Recently, there are a few attempts to localize the SF burnup measurement system in South Korea. For the localization of SF burnup measurement systems, it is very important to build the isotope inventory data base (DB) of various kinds of SFs. In this study, we performed DeCART2D/MASTER core follow calculations and McCARD single fuel assembly (FA) burnup analyses for Hanbit unit 3 and confirmed the characteristic of the isotope inventory over burnup. Firstly, the core follow calculations for Cycles 1~7 were performed using DeCART2D/MASTER code system. The core follow calculation is very realistic and practical because it considers the design conditions from its nuclear design report (NDR). Secondly, the Monte Carlo burnup analyses for single FAs were conducted by the McCARD Monte Carlo (MC) transport code. The McCARD code can utilize continuous energy cross section library and treat complex geometric information for particle transport simulation. Accordingly, the McCARD code can provide accurate solutions for burnup analyses without approximations, but it needs huge computing resources and time burden to perform whole-core follow calculations. Therefore, we will confirm the effectiveness of the single McCARD FA burnup analyses by comparing the DeCART2D/MASTER core follow results with the McCARD solution. From the results, the use of single FA burnup analyses for the establishment of the DBs will be justified. Various FAs, that have different 235U enrichments and loading pattern of fuel rods and burnable absorbers, were considered for the burnup analyses. In addition, the results of the sensitivity analyses for power density, initial enrichment, and cooling time will be presented.

A safety lancet was developed in this study. The development process consists of a conceptual design, mock-up tests, performance evaluation, verification, validation for medical device certification and mass production preparation. It is designed as a single unit which makes it possible to use more convenient. It is also designed as disposable product which cannot be reused or recycled structurally. The developed safety lancet can prevent the secondary infection by needle stick injury or reuse. Biocompatibility and physico-chemical characteristics were passed in KTL(Korea Testing Laboratory). Validation of gamma sterilization of packing materials was passed in professional company for mass production.

본 연구는 관측된 단일 강우-유출사상으로부터 최적화 모형과 추계학적 기법을 결합하여 침투율 공식의 최적매개변수와 단위도를 결정하였다. 수문계측유역에서의 최적 단위도와 침투율을 결정하기 위하여 관측 유출수문곡선과 계산치의 절대오차누계를 최소화하는 모형과 절대최대오차를 최소화하는 선형계획모형을 정립하였다. 손실율의 매개변수를 섭동하기 위하여 추계학적 최적화방법 중의 하나인 Multistart 알고리즘을 채택하였다. Multistart는 분석가능영역을 효과적