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Qingdao, China

Wang X.-L.,Wuhan Naval University of Engineering | Cai Q.,Wuhan Naval University of Engineering | Zhu Z.-M.,Naval Submarine College | Chen Y.-Q.,Wuhan Naval University of Engineering | Liu S.-X.,Wuhan Naval University of Engineering
Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | Year: 2013

During change of marine nuclear power plant load, the water level of steam generator often waved heavily and even more false water level occurred. In the meantime, water level measurement channels failed once in a while. All problems affected heavily self-regulation of water level and operator's correct judgment on the operation states. Therefore, a water level predicting method based on multi-signal reconstruction was brought forward. This method added relevant signals which may affect water level change as input information for prediction. Comparing with predicting method based on analyzing the history of water level change only, this method improves accuracy, stability and reliability of prediction, and supports predicting in longer term. Source


Xie H.-Y.,Wuhan Naval University of Engineering | Cai Q.,Wuhan Naval University of Engineering | Jiang W.-M.,Troop 92351 | Zhang J.,Naval Submarine College | Chen Y.-Q.,Wuhan Naval University of Engineering
Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | Year: 2010

The processing of small break loss-of-coolant accident (SBLOCA) in marine reactor was complicated and using the operational safety analysis platform, LOCA was simulated. The effects of systems and components on the accident process and results were studied, including water fill-in system, emergency cooling system and components in the secondary loop. The research is helpful for the processing of the operator and the establishment of emergency regulations. Source


Zhang W.,National University of Defense Technology | Zeng L.,National University of Defense Technology | Zhang H.,Naval Submarine College | Li S.,National University of Defense Technology
Jisuanji Yanjiu yu Fazhan/Computer Research and Development | Year: 2012

Most traditional digital games are little concerned about the description of high-level dynamic interactions, and do not support describing collaboration relations and planning of multi-level of groups. Furthermore, few of them are based on a complete formal theory. The description logic of tasks combines the knownlege representation structure of the description logic and the task semantics of the logic of tasks. A formal definition of the collaboration and collaborative planning in digital games is provided, which defines the completeness of the task. Meanwhile, a decision theorem of the completeness of the planning under joint strategies is also given by the method. Experimental results demonstrate that task interaction semantics in high-level relationship of the virtual group is described accurately, and decidable deduction service for the completeness of the collaborative planning is provided as well. Source


Zhang W.,National University of Defense Technology | Zeng L.,National University of Defense Technology | Zhang H.,Naval Submarine College | Li S.-K.,National University of Defense Technology
Ruan Jian Xue Bao/Journal of Software | Year: 2010

Most existing researches on task planning in joint operation simulations are not based on a complete formal theory, thus can only support the description of low-level interactions among entities, but can not support the planning of multi-level organizational groups. The description logic of tasks is a theory for describing organization structures and collaborative behavior plans. This paper proposes a method named TPDLT (task planning based on the description logic of tasks), which provides a formal description of the task planning in joint operation simulations based on the description logic of tasks, and gives a definition of the completeness of task plans and a decidable theorem of the completeness under joint strategies. At last, a deduction algorithm for task planning is given. As illustrated by a case study, with the method TPDLT, the task interaction semantics in virtual groups can be described succinctly and accurately, and powerful service for the accomplishment deduce of tasks is provided. © by Institute of Software, the Chinese Academy of Sciences. Source

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