Ferry accidents often occur the result of ship handling difficulty which interfacing human, machine and environment. Therefore, a decision tool model as a comprehensive information system, based on the ship handling d...Ferry accidents often occur the result of ship handling difficulty which interfacing human, machine and environment. Therefore, a decision tool model as a comprehensive information system, based on the ship handling difficulty, needs to be developed through the combination of Analytic Hierarchy Process (AHP) and Fuzzy Logic System. The Fuzzy Logic System part consists of ship condition, ship handling facility condition, navigation condition and weather condition. The output of decision tool is the ship handling difficulty level in linguistic form. The simulation of model is conducted at several straits in Indonesia water. The decision tool model could be used as management information system by port authority to monitor the ferry/ship movement in real time regarding the ship handling difficulty. Further, it would be used to take some useful safety operation strategies and safety policies to improve ferry transportation safety at port water and strait water.展开更多
为了提高专门用于战场的DTN路由算法效率并满足区分消息优先级的需要,通过对一些具有代表性的容迟容断网络路由算法的分析,结合战场实际,在部队整体作战性能和网络通信质量之间做出了合理权衡,提出了基于多级队列和改进的EZF(elliptical...为了提高专门用于战场的DTN路由算法效率并满足区分消息优先级的需要,通过对一些具有代表性的容迟容断网络路由算法的分析,结合战场实际,在部队整体作战性能和网络通信质量之间做出了合理权衡,提出了基于多级队列和改进的EZF(elliptical zone forwarding)策略的战场环境下DTN网络路由算法B-DTN(battlefield DTN),并在ONE仿真平台上进行了仿真。仿真结果表明,B-DTN在保证高优先级消息优先送达的前提下,投递率和整体传输时延相对于传统路由算法仍有较大改善。展开更多
文摘Ferry accidents often occur the result of ship handling difficulty which interfacing human, machine and environment. Therefore, a decision tool model as a comprehensive information system, based on the ship handling difficulty, needs to be developed through the combination of Analytic Hierarchy Process (AHP) and Fuzzy Logic System. The Fuzzy Logic System part consists of ship condition, ship handling facility condition, navigation condition and weather condition. The output of decision tool is the ship handling difficulty level in linguistic form. The simulation of model is conducted at several straits in Indonesia water. The decision tool model could be used as management information system by port authority to monitor the ferry/ship movement in real time regarding the ship handling difficulty. Further, it would be used to take some useful safety operation strategies and safety policies to improve ferry transportation safety at port water and strait water.
文摘为了提高专门用于战场的DTN路由算法效率并满足区分消息优先级的需要,通过对一些具有代表性的容迟容断网络路由算法的分析,结合战场实际,在部队整体作战性能和网络通信质量之间做出了合理权衡,提出了基于多级队列和改进的EZF(elliptical zone forwarding)策略的战场环境下DTN网络路由算法B-DTN(battlefield DTN),并在ONE仿真平台上进行了仿真。仿真结果表明,B-DTN在保证高优先级消息优先送达的前提下,投递率和整体传输时延相对于传统路由算法仍有较大改善。
