港口机械设备的维修涂装

论述港口机械设备腐蚀的原因,防腐涂层保养应注意的事项,维修涂装时期的确定方法,钢材表面除锈去污处理方法及其质量要求,维修涂装涂料配套性的选择原则和方法,维修涂装施工步骤及其要领,以及涂层质量验收要求.     

沥青路面养护技术现状及发展

随着公路建设事业的发展,我们面临着越来越严峻的公路养护和改建问题。本文简单介绍了目前我国沥青路面养护技术现状及存在问题,重点介绍了微波加热法沥青路面修复技术,指出了沥青路面养护技术的发展趋势。     

Real time traffic information and its impacts on route switching behavior of expressway drivers

Non‐quantifiable factors (e.g. perceived, attitudinal and preferential factors) have not been investigated fully in past transportation studies, which has raised questions on the predictive capabilities of the models. In this study, Structure Integration Models, with one of their sub‐models, Measurement Equation, are combined with latent variables, which are integrated with another sub‐model, Structural Equation. The estimated latent variables are used as explanatory variables in decision models. As a result, the explanatory and predictive capabilities of the models are enhanced. The models can then be used to describe the various behaviors of travelers of different types of transportation systems in a more accurate way. In this study, the Structure Integration Model was applied to study the impacts of real‐time traffic information on the route‐switching behavior of road users on the Sun Yat‐Sen expressway, Taiwan. At present, the real‐time traffic information provided on this expressway includes radio traffic reports and changeable message signs. The results of this study can facilitate the provision of traffic information on highways.     

项目法施工的成本控制

笔根据多年的项目法施工实践及调查分析，总结项目法施工中有效控制工程成本的原则及途径。     

船用消防机器人自动控制技术的研制

本文介绍了船用消防机器人的系统功能特点、控制结构及工作原理，给出了上、下位机的硬件结构与控制软件的通讯技术及控制程序流程。     

论我国企业知识产权战略管理体系的构建

知识产权战略在企业发展战略中的地位日益显著,企业要有效实施知识产权战略就应当构建知识产权管理体系.首先分析了知识产权战略管理过程和战略管理工作构成,再从企业知识产权管理机构的设置,相关管理制度的制定和完善,企业知识产权管理信息平台的构建,以及企业知识产权管理评估体系等方面探讨我国企业知识产权战略管理体系的构建.     

利用MultiGen Creator软件建立虚拟船舶电站控制屏的建模研究

随着计算机技术、通信技术以及其它相关技术的飞速发展，信息可视化已经成为新的应用发展方向，基于虚拟现实的仿真技术正成为当前研究热点。本文选择利用虚拟现实技术以船舶电站控制屏为研究对象，基于Creator软件着重对船舶电站控制屏作深入研究，这为船舶其它虚拟操纵研究提供了一个很好的借鉴。     

On constructing certificateless proxy signature from certificateless signature

In proxy signature schemes, an original signer A delegates its signing capability to a proxy signer B, in such a way that B can sign message on behalf of A.The recipient of the final message verifies at the same time that B computes the signature and that A has delegated its signing capability to B.Recently many identity-based(ID-based) proxy signature schemes have been proposed, however, the problem of key escrow is inherent in this setting.Certificateless cryptography can overcome the key escrow problem.In this paper, we present a general security model for certificateless proxy signature scheme.Then, we give a method to construct a secure certificateless proxy scheme from a secure certificateless signature scheme, and prove that the security of the construction can be reduced to the security of the original certificateless signature scheme.     

Parallel Key-insulated Signature： Framework and Construction

To deal with the key-exposure problem in signature systems, a new framework named parallel key-insulated signature （PKIS） was introduced, and a concrete PKIS scheme was proposed. Compared with traditional key-insulated signature （KIS） schemes, the proposed PKIS scheme allows a frequent updating for temporary secret keys without increasing the risk of helper key-exposure. Moreover, the proposed PKIS scheme does not collapse even if some （not all） of the helper keys and some of the temporary secret keys are simultaneously exposed. As a result, the security of the PKIS scheme is greatly enhanced, and the damage caused by key-exposure is successfully minimized.     

LNG船齿轮箱基座预装工艺的优化

针对LNG船齿轮箱基座在船坞阶段安装产生的涂层破坏和对生产进度的影响,提出预总组的工艺阶段进行基座预装,并制定相应工艺,既满足了基座安装精度要求,又保证了涂装质量,确保质量的同时提高了产品建造效率。