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Analyze Requirements for PAIS with Best Practice
Juntao GAO,Xueshan Wang,Yongan WANG 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.2
Traditional requirements analysis is focused on capture functions of the system that are being built from scratch. As the size and complexity of process-aware information system continues to grow, the use of COTS (Commercial off-the-shelf) software packages is being viewed as a solution. Use of COTS packages accelerates the implementation process to some extent, however, it puts enterprises into a dilemma: whether to adapt as-is business processes or to customize software packages. In order to help the enterprises get out of the dilemma, a methodology is proposed to automatically elicit software requirement using best practice as domain knowledge. The methodology involves three phases: business modeling, gap detecting and gap bridging. Firstly, VPML is employed to describe as-is business process, Secondly, semantics computing technology is employed to analyze the gap between enterprise needs and COTS software capacity. At last, Goal Reasoning Technology is employed to encourage enterprise users and software vendors take participate in decision making process together.
Medical Image Segmentation Based on Morphology Algorithm and FCM Algorithm
Shigang Wang,Zhinan Rong,Xueshan Gao 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.10
Fuzzy c-means algorithm is an unsupervised clustering algorithm, its clustering process can reduce the human intervention, and it is suitable for processing medical images of uncertainty and ambiguity. When simply using FCM algorithm in brain image segmentation will leads to the condition of low accuracy. On the basis of FCM algorithm, this paper proposes a new method which combines FCM algorithm and morphology algorithm. The result of simulation shows that this method can accurately and efficiently segment the brain image. The new algorithm is an effective method for image segmentation.
Zhang Cheng,Pan Jie,Wang Zixie,Wu Zhaoyu,Mei Qiliang,Ding Qianxue,Gao Jing,Xiao Xueshan 한국원자력학회 2023 Nuclear Engineering and Technology Vol.55 No.5
The new Modified-690Gd alloy, namely as Nie30Cr-(10-x) Fe-xGd (x ¼ 0.5, 1.0, 1.5,2.0, 3.0 wt%) for function structure integrated thermal neutron shielding has been prepared and characterized. The Modified-690Gd alloy was mainly composed of g austenite matrix and (Ni, Cr, Fe)5Gd precipitated along grain boundaries. The new Modified-690Gd alloy had great mechanical properties, which had the tensile strength exceeding 620 MPa and the elongation being above 50%. Meanwhile, this alloy had excellent weldability and good corrosion resistance in boric acid. The new Modified-690Gd alloy is expected to be a kind of high efficiency thermal neutron shielding materials