勘察设计企业全面预算管理探讨

全面预算是企业提升管理水平的重要工具,建立与完善科学的全面预算管理体系,是企业经营目标得以实现的重要环节。基于上述认识,作者以某勘察设计企业(以下简称某企业)为例,通过对其全面预算管理现状分析,结合国内外先进的预算管理理论和思想,通过健全全面预算管理组织机构,完善制度建设,确立科学合理的预算目标,引进信息化管理手段,完善全面预算管理监督控制与考核机制等,对其全面预算管理工作进行了全面优化。     

Exploring the issue of integrating logistics and traffic control in urban areas

This paper proposes an optimization framework for urban transportation networks’ (re-)design which explicitly takes into account the specific decision-making processes of ordinary users and logistic operators. Ordinary users are typically commuters whose travels consist of well-defined pairs of origin and destination points, while logistic operators make deliveries at multiple locations. Obviously, these two user classes have different objectives and scopes of action. These differences are seldom considered in traffic research since most models aggregate the flow demand in OD matrices and use assignment models to predict the response of all users as if the dynamics of their optimization processes were of the same nature. This work demonstrates that better results can be achieved if the particular features of each user class are included in the models. It potentially improves the estimation of the responses and allows managers to shape their control measures to address specific user needs.     

价值工程理论在沥青混合料碳排放减排措施中的应用

沥青混合料碳排放减排措施是降低碳排放的有效手段,而对减排措施的选择将直接影响工程的质量和经济效益。本文运用价值工程理论的基本原理与方法,论述价值工程在减排措施选择中的应用方法和步骤,并结合工程实例,对减排措施方案的选择进行研究。结果表明,运用价值工程理论的方法可以择优确定沥青混合料碳排放减排措施。     

交通土建类工程造价专业工学结合人才培养模式研究

文章介绍了广西交通职业技术学院交通土建类工程造价专业工学结合人才培养模式的实践现状,分析了开展工学结合人才培养模式中出现的问题,提出了工学结合人才培养模式有效运行的措施。     

工程总承包模式下项目业主风险防范探讨

文章结合工程总承包的特点,分析了工程总承包模式下项目业主在项目实施过程中所面临的风险,提出了相应的防范风险的措施。     

载人潜器人因工程研究

对载人潜器人因工程的研究现状、研究范畴、技术手段和发展趋势进行梳理和总结,旨在为指导载人潜器设计总体集成优化、提高潜器综合效能、节省全寿命周期费用及缩减潜器人员编制提供参考。     

公路平曲线设计在工程可行性研究阶段的探讨

文章针对工程可行性研究阶段的公路平面设计特点,介绍利用小计算器确定平曲线的平面设计方法,为提高工程可行性研究阶段设计的工作效率及质量提供参考。     

Identifying preferences for public transport investments under a constrained budget

As urban areas face increasing demands for new transport infrastructure to promote a sustainable future with an increasing reality of constrained government budgets, the debate on whether we should focus on rail or bus-based investments continues unabated in many jurisdictions. Associated with the debate is an emotional (or ideological) bias by communities in favour of one mode, especially rail, which carries much sway at the political level as if there is no budget constraint. This paper presents a stated choice experiment to investigate this context as two unlabelled options described by 20 potential drivers of community preferences for improved public transport, where each choice scenario is conditioned on an estimated construction cost and a total annual transport infrastructure budget for the relevant geographical jurisdiction. This is followed by a labelling of each alternative to reveal whether the option is bus rapid transit (BRT) or light rail (LRT) and to establish whether this additional information influences preference revision. Data is collected in all eight capital cities of Australia in mid 2014. Mixed logit models with heteroscedastic conditioning in terms of the cost of the project infrastructure and whether the alternative is labelled BRT or LRT, provide new evidence on the nature and extent of community modal bias in a budget-constrained choice setting. The conclusions are twofold. On the one hand, if a fully compensatory choice rule is assumed (as is common in all previous modal comparison studies), LRT is predominantly preferred over BRT despite budgetary constraints, similarities in quality of service attributes and the opportunity to choose a greater network coverage for a given construction cost. However, when we allow for attribute non-attendance (a semi-compensatory choice rule), the modal bias is no longer a significant driver of preferences.     

基于VTM水泥稳定碎石劈裂强度特性

通过振动法,研究级配、原材料、水泥剂量、龄期等因素对水泥稳定碎石劈裂强度的影响,结果表明,与传统试验方法设计水泥稳定碎石相比,在同等水泥剂量下,基于VTM水泥稳定碎石劈裂强度可提高76％左右;与GF级配水泥稳定碎石相比,MG级配水泥稳定碎石28d、60d劈裂强度提高了8％-15％;在同等条件下,劈裂强度Rp90／R日范围为2．9—3．8,平均值3．3;劈裂强度R脚／尺F范围为1．9～2．0,平均值2．0;在同等水泥剂量、龄期下,水泥稳定碎石（石灰岩或花岗岩）劈裂强度为水泥稳定碎石（砂岩）2倍以上;水泥稳定碎石劈裂强度水泥增强效廊在减弱．     

静液储能传动汽车发动机怠速模糊自适应控制

针对静液压储能传动汽车的特点,应用模糊控制理论对发动机怠速控制进行了研究,设计了一个用于发动机怠速控制的模糊自适应控制器。台架试验结果表明,模糊自适应控制方法应用于发动机怠速控制是可行的,而且具有较好的稳定性和较快的动态响应特性。