Grounded ship faces up exceptionally different stability forces unlike in her normal operating condition. This critical situation must be corrected as soon as can minimize hull stress, the risk of pollution and stabil...Grounded ship faces up exceptionally different stability forces unlike in her normal operating condition. This critical situation must be corrected as soon as can minimize hull stress, the risk of pollution and stability failure. Re-floating the ship need full understanding of the impact of ground reaction （R） on the ship buoyancy and stability. Re-floating the ship has different phases and there are several immediate actions that should be taken by ship＇s crew; one of these phases is re-calculation of ship stability conditions. In this paper, a guide to understanding the effect of the ground reaction （R）, determines the amount of ground pressure and its location. With consideration of the seabed form whether symmetric of asymmetric. Calculating the magnitude of the ground reaction （R） using different applicable methods, explaining the effect of using weight to re-float the ship by her own means, focusing on GM calculation after grounding.展开更多
The ferry problem may be viewed as generalizations of the classical wolf-goatcabbage puzzle. The ferry cover problem is to determine the minimum required boat capacity to safely transport n items represented by a conf...The ferry problem may be viewed as generalizations of the classical wolf-goatcabbage puzzle. The ferry cover problem is to determine the minimum required boat capacity to safely transport n items represented by a conflict graph. The Alcuin number of a conflict graph is the smallest capacity of a boat for which the graph possesses a feasible ferry schedule. In this paper the authors determine the Alcuin number of regular graphs and graphs with maximum degree at most five.展开更多
The margins in elite sport are becoming increasingly smaller particularly in timed sporting events forcing the limits of perfor- mance to be pushed further. Although traditionally only the phys- iological and physical...The margins in elite sport are becoming increasingly smaller particularly in timed sporting events forcing the limits of perfor- mance to be pushed further. Although traditionally only the phys- iological and physical attributes of performance were considered, there is growing awareness of a range of factors including but not limited to; the performance culture including the team environ- ment, athlete coach relationship, facilities etc; specific physical attributes and skills for each sports; mental skills such as confi- dence, resilience, motivation etc; technical skills including agility, coordination; tactical skills and finally lifestyle skills including nutrition, well-being, and recovery.展开更多
文摘Grounded ship faces up exceptionally different stability forces unlike in her normal operating condition. This critical situation must be corrected as soon as can minimize hull stress, the risk of pollution and stability failure. Re-floating the ship need full understanding of the impact of ground reaction （R） on the ship buoyancy and stability. Re-floating the ship has different phases and there are several immediate actions that should be taken by ship＇s crew; one of these phases is re-calculation of ship stability conditions. In this paper, a guide to understanding the effect of the ground reaction （R）, determines the amount of ground pressure and its location. With consideration of the seabed form whether symmetric of asymmetric. Calculating the magnitude of the ground reaction （R） using different applicable methods, explaining the effect of using weight to re-float the ship by her own means, focusing on GM calculation after grounding.
基金supported by the National Natural Science Foundation of China(Nos.11871329,11571222)
文摘The ferry problem may be viewed as generalizations of the classical wolf-goatcabbage puzzle. The ferry cover problem is to determine the minimum required boat capacity to safely transport n items represented by a conflict graph. The Alcuin number of a conflict graph is the smallest capacity of a boat for which the graph possesses a feasible ferry schedule. In this paper the authors determine the Alcuin number of regular graphs and graphs with maximum degree at most five.
文摘The margins in elite sport are becoming increasingly smaller particularly in timed sporting events forcing the limits of perfor- mance to be pushed further. Although traditionally only the phys- iological and physical attributes of performance were considered, there is growing awareness of a range of factors including but not limited to; the performance culture including the team environ- ment, athlete coach relationship, facilities etc; specific physical attributes and skills for each sports; mental skills such as confi- dence, resilience, motivation etc; technical skills including agility, coordination; tactical skills and finally lifestyle skills including nutrition, well-being, and recovery.
