A business jet is an aircraft that is designed to transport a small number of passengers. Passengers pay a premium price to travel compared to commercial airliners. These jets are owned and operated by corporations, individuals, government agencies, or commercial business jet operators that provide business jet charter services. Jet card programs or fractional ownership schemes allow customers to have the benefit of business jet travel without the need for full ownership of the business jet.

Composites are made by combining two or more different materials. They have properties different from the physical or chemical properties of the individual components used in the combination. Fiber reinforced polymers composed of carbon, glass, and aramid fibers are primarily used in the aerospace industry. Composites have found a wide range of applications in commercial and military aircraft, rotorcraft, and UAVs. They provide lightweight structure and components for aircraft, while possessing superior strength. They are used for aircraft fuselage, tail, wings, aircraft cabin interiors and seats, and jet engine components.

Landing gear is one of the most important subsystems installed in an aircraft. It supports the entire weight of an aircraft during takeoff and landing, and during ground operations. Commercial aircraft landing gear is highly advanced and the sophisticated systems make use of modern control and steering mechanisms. Landing gear also comprises shock-absorbing equipment, brakes, and sensors.

The safety and security of both passengers and aircraft are of primary concern to airline operators. Aircraft video surveillance systems are used to monitor the activities in the cockpit, cabin, cargo, and ground areas to alert crew members to any emergency such as terrorist activities, air rage, baggage theft issues, and theft of parts or fuel.

由于作为海洋研究和开发的重要载体的供应船的控制技术决定着船舶能否按预定位置航行或停泊，因此，解决控制技术中的一个关键问题即确定船舶数学模型中的水动力导数很重要。采用CFD商用软件FLUENT，结合动网格技术，对系列供应船的纵荡运动进行数值模拟，得到系列船舶的纵向水动力，进而获得相应的纵向加速度导数，并分析数值计算结果的合理性。在此基础上，采用偏最小二乘的回归方法，得出供应船纵向加速度导数关于船型参数和呆木参数的估算公式。

军用舰船指挥员面对恶劣海况时，需在舰船安全与使命任务间做出最为合理的决策。因此，应用模糊综合评价的方法，在考虑军用舰船特殊舰体结构和舰员构成的基础上，提出一种可供军用舰船指挥员在大风浪条件下进行航行决策的模型。在某测量船上运用该模型对不同航线的危险度进行实际估算，结果得到了随舰出海指挥员的认可。实践中，根据此结果做出了合理决策，使得测量船在付出一定代价后顺利完成了任务.

当前航运企业正面临多重困境,为求得生存并保持平稳发展,必须不断突破传统观念、思维模式和经营模式。在中国跨境贸易电商大发展的背景下,航运企业电商平台直接面向中小微客源,实现"一站式""扁平化"的新型O2O经营模式。航运企业积极探索平台化、数据化的经营模式,使得贸易、航运大数据得以融合并产生新的价值,必将促进"数字航运"的发展。

为满足上海临港新城工业开发区的发展需求，该地区的港区码头已于2013年下半年正式投入使用。综合介绍上海临港新城港区码头概况、与码头相关的具体航道、码头待泊和候潮锚地。阐述临港新城港区码头布置和功能，专门就进出该港区的船舶的航行和靠离泊作业的注意事项进行论述。

以黄金价格与道琼斯指数等指标代表国际金融资本市场，与 BDI建立Johanson协整关系，研究三者间的长期稳定的关系。建立VEC模型，研究三者间的短期动态调整能力，之后运用Granger因果检验进一步研究三者时间先后顺序上的因果关系。通过以上研究可知，BDI与黄金价格和道琼斯指数均呈现负相关的协整关系，该关系一旦偏离就能够在短期内迅速调整，其中协整关系可用来帮助判断BDI的走势。

为快速确定水面拖曳系统龙须缆的稳态运动参数，建立拖缆三维稳态平衡微分方程。根据拖缆两端的边界条件，利用二分法和龙哥库塔方法，对拖缆微分方程进行积分求解，确定水面拖曳系统中龙须缆的构型及稳态运动参数。以具体的拖曳实例为例进行数值仿真计算，分析龙须缆物理参数变化对系统稳态运动的影响。结果表明,运用这种算法，可以在拖曳系统初步设计阶段快速确定系统索具的参数，并能满足系统设计要求。