The basic concepts and models of weapon-target assignment （WTA） are introduced and the mathematical nature of the WTA models is also analyzed. A systematic survey of research on WTA problem is provided. The present ...The basic concepts and models of weapon-target assignment （WTA） are introduced and the mathematical nature of the WTA models is also analyzed. A systematic survey of research on WTA problem is provided. The present research on WTA is focused on models and algorithms. In the research on models of WTA, the static WTA models are mainly studied and the dynamic WTA models are not fully studied in deed. In the research on algorithms of WTA, the intelligent algorithms are often used to solve the WTA problem. The small scale of static WTA problems has been solved very well, however, the large scale of dynamic WTA problems has not been solved effectively so far. Finally, the characteristics of dynamic WTA are analyzed and directions for the future research on dynamic WTA are discussed.展开更多
Objective:To evaluate mental health of sailors by the Syptom Checklist-90 (SCL-90). Methods: A total of 335 sailors were administered the SCL-90. The results were compared with Chinese norms for the army and general p...Objective:To evaluate mental health of sailors by the Syptom Checklist-90 (SCL-90). Methods: A total of 335 sailors were administered the SCL-90. The results were compared with Chinese norms for the army and general population. Results: The SCL-90 total score of sailors was 125.35±35.12. The number of endorsed positive symptom items and the mean score of positive symptom items were 24.56±17.88 and 2.44±0.38,respectively. The total score, the mean factor score, the positive symptom score and overall endorsement for positive symptoms were significantly lower when compared with the Chinese norms for the army ( P <0.001). The mental health status of sailors was significantly better than that of the general population. Conclusion: There remains significant need for strengthening mental heath education for promoting mental health of sailors.展开更多
基金This project was supported by the National Defense Pre-Research Foundation of China
文摘The basic concepts and models of weapon-target assignment （WTA） are introduced and the mathematical nature of the WTA models is also analyzed. A systematic survey of research on WTA problem is provided. The present research on WTA is focused on models and algorithms. In the research on models of WTA, the static WTA models are mainly studied and the dynamic WTA models are not fully studied in deed. In the research on algorithms of WTA, the intelligent algorithms are often used to solve the WTA problem. The small scale of static WTA problems has been solved very well, however, the large scale of dynamic WTA problems has not been solved effectively so far. Finally, the characteristics of dynamic WTA are analyzed and directions for the future research on dynamic WTA are discussed.
基金supported by National Natural Science Foundation of China(61425008,61333004,61273054)Top-Notch Young Talents Program of China,and Aeronautical Foundation of China(2013585104)
文摘Objective:To evaluate mental health of sailors by the Syptom Checklist-90 (SCL-90). Methods: A total of 335 sailors were administered the SCL-90. The results were compared with Chinese norms for the army and general population. Results: The SCL-90 total score of sailors was 125.35±35.12. The number of endorsed positive symptom items and the mean score of positive symptom items were 24.56±17.88 and 2.44±0.38,respectively. The total score, the mean factor score, the positive symptom score and overall endorsement for positive symptoms were significantly lower when compared with the Chinese norms for the army ( P <0.001). The mental health status of sailors was significantly better than that of the general population. Conclusion: There remains significant need for strengthening mental heath education for promoting mental health of sailors.
