贻贝机械化收获与加工平台装备技术的研究

介绍机械化收获与加工平台的基础结构、甲板布置、收获滑道、脱粒机、筛分机、包苗机的设计,使其在海上完成收获、分组、清洗、临时冷藏保鲜、未成熟苗卷包等作业。     

地铁车辆空调系统送风风道分析

结合我国地铁车辆空调系统的设计,从结构和原理上对目前几种主型风道作了详细的介绍和分析。     

潮汐地区深水大直径钻孔桩施工

浙江省临海大桥横跨灵江,主塔位于江心,基础为深水大直径钻孔桩,施工既受洪水控制,又受潮水控制,介绍该桥主塔钻孔桩施工技术。     

VGELES1800型摊铺机故障分析一例

以 VO¨ GEL E S180 0型摊铺机在摊铺工作中出现的故障为例 ,介绍了分析、解决问题的全过程 ,着重分析了熨平板严重磨损后对摊铺造成的影响 ,并提出了减轻熨平板磨损的几项措施。     

浅谈港口服务型企业应对金融危机的策略

由美国次贷危机引发的全球性金融危机,对国际贸易和海运市场产生越来越严重的影响,随时间的推移,影响进一步波及至港口服务型企业.文章通过对金融危机下企业风险源类型及其危害的分析,从微观角度对港口服务型企业应对经济危机提出了几点建议与措施.     

内燃机车柴油机曲轴修复的探讨

通过分析内燃机车柴油机曲轴的重要性及在运用中存在的问题,指出曲轴在运用管理中应重点抓好的几个环节,强调要严格按规定的工艺进行修理,不能简化修理工艺,才能保证满足质量要求,并产生良好的经济和社会效益。     

A capacity restraint transit assignment with elastic line frequency

This paper proposes a new formulation for the capacity restraint transit assignment problem with elastic line frequency, in which the line frequency is related to the passenger flows on transit lines. A stochastic user equilibrium transit assignment model with congestion and elastic line frequency is proposed and the equivalent mathematical programming problem is also formulated. Since the passenger waiting time and the line capacity are dependent on the line frequency, a fixed point problem with respect to the line frequency is devised accordingly. The existence of the fixed point problem has been proved. A solution algorithm for the proposed model is presented. Finally, a numerical example is used to illustrate the application of the proposed model and solution algorithm.     

关于《海录》及其作者的新发现与新认识

一、关于谢清高的生平 对于谢清高我们知道的很少.谢清高大约生于清乾隆三十年(1765),死于清道光元年(1821),享年57岁.谢清高是清广东省嘉应州金盘堡人,即今广东省梅州市一带人.谢清高幼年应读过一点书,识一些字,这使他能够有见识,有兴趣,有能力记述海外见闻.谢清高年纪不大便跟从商贾从事海外贸易,在海上遭到风暴袭击,不幸落海,被外国商船搭救,以后便随外国商船游历海外各国.     

立交平做交通特性的微观仿真研究

立交平做作为一种交通组织方式。在城市道路交通管理实践中经常被运用。通过TSIS仿真实验，定量地研究了采用立交平做的信号交叉口的通行能力及其运行效果，进而探讨了立交平做的适用条件。     

Selection Method of Multi-Objective Problems Using Genetic Algorithm in Motion Plan of AUV

To research the effect of the selection method of multi-objects genetic algorithm problem on optimizing result, thismethod is analyzed theoretically and discussed by using an autonomous underwater vehicle(AUV) as an object. A changingweight vtlue method is put forward and a selection formula is modified. Some experiments were implemented on an AUV.TwinBurger. The results shows that this method is effective and feasible.