船舶

The ship arrival law, lock operation strategy, and lockage dispatching are studied base on the queuing theoiy, decision theory, and integer programming.

作者应用排队论、决策论、整数规划等最优化理论，从船舶到达规律、船闸运行策略和船舶过闸调度决策三方面深入研究了船闸的运行调度方法。

Since the model is a large scale and NP-hard combinational optimization problem in the real navigation environment, a hybrid simulated annealing algorithm is employed to search the suboptimal solution composed of a lockage timetable and a ship scheduling, The search starts by trimming the existing lockage timetable based on heuristic rules; the result is then used to compute the ship scheduling by the depth-first-search algorithm. The obtained solution is finally updated by the Metropolis rule.

本文首先提出了该问题的混合整数非线性规划模型，在实际通航调度环境中，该模型属于强NP-hard复杂度的大规模组合优化问题，因此设计了一种混合模拟退火算法来搜索次优化调度方案，该算法将解分解为闸次时间表和船舶调度计划两部分，在搜索过程中用启发式规则对闸次时间表进行调整，然后用深度优先搜索算法根据闸次时间表求解船舶调度计划，最后根据Metropolis规则对当前解进行更新。

In this paper I introduced the method of how to constructed the math model of the Ship Lubricating Oil System.

主机润滑油系统是船舶主机的重要组成部分，建立它的动态仿真模型对于是船舶模拟器的建立有重要的作用。

With the development of the modern shipping industry,some ships reduced their manning.

由于现代航运业的发展与船舶配员减少等原因，海上船舶安全出现了新的问题。

The following software to be used by company, GHS(R11.5) software used for Hydrostatics calculation, stability and global strength evaluation and freeboard and tonnage calculation; SHD and Mastership software used for Hull construction Modeling, Working drawing generation and Mould loft; ANSYS software used for FEM structural analysis; SB3DS software used for modeling of Piping and it s fittings, electrical cable and it s fittings, working drawing generation; Microsoft Project used to project planning.

公司内的设计和管理工作主要应用以下软件：船舶性能计算采用用美国的 GHS(R11.0)系统；船体结构建模及放样采用上海东欣软件；船舶结构有限元分析主要用ANSYS通用有限元分析及结构优化软件；管系布置及放样软件采用SB3DS；电缆布置及放样软件采用SB3DS； Microsoft Project用于工程及设计管理。

According to Floquet theory and transition curves of Mathieu equation, two different modified strained parameter methods are compared on precision of periodic solutions.

中文摘要：为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。

In order to solve the problem of chart projection transformation among all projections in shiphandling simulator,using the theory of power series spreading out and the method of trigonometric power series calculating back, a direct and reverse solving algorithm models of meridian arc length , and Gauss projection and Mercator projection transforming algorithm are introduced in this paper.

为了解决船舶操纵模拟器中不同投影方式海图的投影变换问题，应用幂级数展开理论和三角级数回求方法，给出了子午线弧长、等量纬度的直接正反解算法模型及高斯投影与墨卡托投影的相互转化算法。这些算法具有非常高的计算精度，避免了迭代运算，在船舶操纵模拟器中得到广泛应

For this reason, to decrease the human misplay is the key to reduce collision and enhance the safety of navigation.

因此，减少人为操纵失误是降低船舶碰撞事故率和提高船舶航行安全的关键。

Deployment of helicopters on ships - both singly and in groups - was subjected to a very stringent testing on ships of various types, including the well-known ASW cruisers "Moskva" and "Leningrad".

船舶上的部署直升机-无论单独和团体-遭到了不同类型的船舶上非常严格的测试，包括著名的反潜巡洋舰"莫斯科"和"列宁格勒"。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。