航标遥测遥控系统实现方案的探讨

从建设实践出发,提出适合长江航道管理模式的航标遥测监控系统的构架方案,并针对数据通信方式、数据平台标准以及航标定位等问题进行分析和研究,为今后内河航标遥测监控系统的大规模建设提出建设性意见。     

舰船在三维非规则波中的航向航速优选

文章探讨了舰船在三维非规则波中，基于方向谱的六自由度摇荡及动力响应统计特征值的计算方法，并给出了计算结果和实船海试结果的对比，证实了算法是可行的，精度高于舰船在二维非规则波中基于频谱的计算结果。在此基础上，提出了舰船在三维非规则波中航向航速优选的求解模式和算例。     

Modelling the adoption intention and installation choice of an automotive after-market mild-solar-hybridization kit

Despite the recent commercial success of hybrid, plug-in hybrid and electric vehicles their market share is still insufficient to produce either a significant impact on energy consumption on a global basis or a profitable automotive segment. In this context, the possibility of upgrading conventional vehicles to hybrid electric vehicles is gaining increasing interest.To this aim this paper investigated and modelled the intention to install an after-market hybridization solar-kit (HySolarKit) in order to ascertain the main behavioural determinants of the choice process and set up an operational model with which to estimate the market potential of such technology. In particular, two behavioural stages of the choice process were analysed and modelled: (i) the intention to adopt the HySolarKit; (ii) the choice to install the HySolarKit. Both issues were addressed through ad hoc stated preference surveys carried out in two different Italian cities, and through the specification and the calibration of discrete choice models based on the behavioural paradigm of random utility theory. Different modelling solutions (homoscedastic and heteroscedastic) were compared in terms of goodness-of-fit and sensitivity to level-of-service attributes. The results showed the technological potential of the HySolarKit, and that both behavioural stages may be effectively modelled through random utility theory. Estimation results allowed an interpretation of the main determinants of the investigated phenomena, making it possible to quantify the potential effects and the concerns towards such a green solution, and making it possible to draw up operative marketing strategies. In particular, the intention to adopt the kit mainly depends on socio-economic factors as well as activity-related and attitudinal attributes, whereas the probability of installing the kit is greatly affected, to the same extent, by installation cost, the charging cost and the weekly mileage driven.     

沥青稳定基层混合料抗变形能力试验研究

在分析含沥青稳定基层结构的全厚式沥青路面温度特性基础上，得出沥青基层混合料性能试验的合理温度，结合蠕变试验，分析了温度和级配对沥青基层混合料抗永久变形能力的影响，结果表明骨架密实级配比连续级配抗永久变形能力强。     

情境建构主义与ESP教学实践的融合——以航海模拟器仿真情境口语教学为例

航海英语属于专门用途英语（ESP）。能否构建既符合ESP教学理论又贴近航海实践环境的教学体系,是完善和创新航海职业教育的关键。模拟器仿真情境口语教学既符合建构主义认知规律,也符合ESP任务教学法学用一致的原则。本文将从辅助模式为主的内容型教学和模拟器辅助的抛锚式教学两个方面,探讨航海英语口语教学过程中两种教学模式的融合,利用船舶操纵模拟器进行航海英语口语教学,最大化提高教学效率,缩短学生与企业的磨合期。     

置信检验自适应联邦卡尔曼滤波及其水下机器人组合导航应用

[目的]为解决载体受到扰动时组合导航精度下降的问题,提出一种基于置信检验自适应联邦卡尔曼滤波(CC-AFKF)框架.[方法]首先,将电子罗盘(EC)、全球定位系统(GPS)与惯性导航系统(INS)相结合;其次,构建置信检验模型,有效滤除INS/GPS和INS/EC子系统中低置信度的量测值,保证量测值的准确性;最后,提出...     

Research on integrated navigation method for AUV

The principles of the SINS/DVL integrated navigation system are introduced, and the compass status accuracy is compared. When the heading is changed, the dead reckoning algorithm using the heading information of the SINS （Strapdown inertial navigation systems） and DVL （doppler velocity log） is adopted to substitute the SINS/DVL integrated system. The simulation results show that the method can improve the accuracy of integrated navigation system when AUV （autonomous underwater vehicle） is in motion.     

浅析思维差异在英汉互译中的影响

本文从思维对语言的影响入手,探讨英汉两个民族不同的思维特征与差异,并分析了这种差异在语言表达中的形式,指出英汉民族的思维差异对我们在语言学习及英汉互译时的影响,从而更准确地理解原文并进行自然、流畅的互译。     

航运纠纷中诉讼程序当事人不到庭的处理规则

随着我国海洋运输业和航运服务业的迅速发展,航海运输中的各种纠纷正呈逐年上升趋势,其中不乏海事行政诉讼案件.在海事行政诉讼案件中,当事人因为各种原因,有时会拒绝参与诉讼程序,特别是不到庭参加诉讼,这会对海事行政诉讼案件的恰当处理带来不利影响.此种情形下,海事法院应当从合法性和合理性两方面出发,结合法律规定及具体情形,对航运纠纷中海事行政诉讼当事人不到庭的理由作出正当性判断,并据此适用不同的处理规则,以确保海事行政纠纷得到妥善解决.     

黄骅港冰期航标维护

冰期航标维护是航标管理工作的难点。文中笔者对黄骅港冰冻的成因和范围进行了阐述,并结合多年的防抗冰冻及航标维护的经验,提出了多项应对之策,旨在拓宽防护思路和方法,更好地提供航海保障。