“形式正义为实质正义服务”——中铁二局法律顾问吴大平谈企业诚信经营

"领导一看到你就烦,烦什么呢?因为一看到你,不是我们公司去找别人的麻烦,就是别人找我们公司的麻烦,就是打官司,反正没有好事!"作为中铁二局的法律顾问,吴大平饶有兴趣地讲起了行业法律顾问的尴尬。     

地铁车站出入口优化设计研究

地铁车站出入口作为地铁建设的重要组成部分,不仅便利市民出行,也很好地展现了城市风貌。为了进一步优化地铁车站出入口设计,结合深圳市地铁车站出入口设计案例,主要对出入口布局影响因素、布局原则、设置形式、设计标准进行了深入研究,以此为相关设计人员提供参考。     

商品汽车运输形式初探

<正> 商品汽车运输是汽车行业进入大批量的生产阶段之后的必然产物。多年来,十堰市政府、交通局、运管处对十堰二汽商品汽车的运输,曾采取了一系列的公路运输管理措施,并取得了良好的社会效益。我现在仅从汽车厂生产、销售、运输角度,谈谈几点体会。请供研讨。     

浅议我国粮食包装形式的改进

<正> 一、我国粮食包装形式的改进势在必行 在粮食运输、储藏、销售过程中,为了便于搬运,提高工作效率,为了保护粮食不受污染,减少粮食损失,总要采取一定的包装形式。我国在粮食流通过程中一直采用袋装的形式。其中原粮多用每袋装     

浅谈高等级沥青路面

结合国内高等级公路的建设经验,探讨了沥青路面的结构形式、面层厚度、材料性能、路面排水等问题,并就此提出了几点认识.     

薄壁不锈钢金属软管失效形式分析

本文对薄壁不锈钢金属软管的失效形式和分类作简要分析，并提出了预防失效的办法。     

单拱单柱双层新型结构形式在蒲黄榆地铁车站中的应用

北京地铁五号线蒲黄榆车站成功地采用了暗挖法施工方案和单柱单拱双层结构形式,实践证明,这种施工方法和结构形式是安全、可行的。文章介绍了施工方案和结构形式的选定、施工过程的模拟分析,以及结构设计计算结果等,并提出了问题和建议。     

高压水射流清洗作业中喷嘴的设计原理和选型依据

主要介绍了高压水射流清洗系统中喷嘴的设计原理和选型依据、实验结果,通过了解喷嘴的设计过程和影响喷嘴的性能因素,选择与清洗系统匹配的喷嘴,可以明显地提高清洗作业的效果,减少劳动损耗.     

公路运输企业资本运营机制优化问题探讨

<正> 我国社会主义市场经济体制的逐步建立、完善和发展,为公路运输企业建立产权清晰、权责明确、政企分开、管理科学为基本特征的现代企业制度,争取早日成为自主经营、自负盈亏、自我发展、自我约束的法人实体和市场竞争主体创造了有利的宏观环境和条件。但企业改革不适应建立社会主义     

Measuring the potential for automobile fuel savings in the US: The impact of obesity

High rates of oil consumption and obesity in the US have become important socioeconomic concerns. While these concerns may seem unrelated at first, growing obesity rates in the US increase fuel consumption by adding passenger weight to vehicles. This paper estimates the additional amount of fuel (i.e., gasoline) consumed annually by noncommercial passenger highway vehicles in the US due to passenger overweight and obesity. The mathematical model presented in this paper estimates that as many as one billion additional gallons of gasoline are consumed each year due to overweight and obesity in the US, accounting for up to 0.8% of the fuel consumed by these vehicles annually. This additional fuel consumption causes carbon dioxide emissions of up to 20 billion pounds or more, accounting for up to 0.5% of the annual carbon dioxide emissions in the transportation sector.     

物流企业在中国-东盟自由贸易区内运营财务核算问题研究

文章通过对当前物流企业财务核算体系存在的问题进行分析,探讨了加强物流企业在东盟自由贸易区内运营财务核算的必要性,提出了建立物流企业在东盟自由贸易区内运营财务核算的对策。     

盾构法施工单机核算管理模式的应用

近年来盾构机越来越多地应用于各种隧道工程中,其中地铁应用的数量最多,约占80%。现代盾构已演变成为一种高度智能化的大型工程机械装备,对其控制的好坏将直接影响到整个工程的施工成本和企业的经营效益,而通过单机核算降低机械成本是降低施工成本、提高企业效益的有效手段,因此推行盾构法施工单机核算显得尤为重要。文章结合地铁2222标施工项目,重点介绍了盾构法单机核算管理模式及其在施工中的应用。     

GPS-RTK技术在高速公路征地测量中的应用

文章介绍了GPS-RTK全球定位系统实时动态相位差分定位技术的概念、组成及特点,分析了传统征地测量方法存在的问题,阐述了利用GPS-RTK技术进行征地测量的前期准备工作、外业及内业工作内容,并通过对比分析,指出了GPS-RTK技术在速度、精度、可追溯性、审计、可控性方面的优势。     

A spatial Difference-in-Differences estimator to evaluate the effect of change in public mass transit systems on house prices

Evaluating the impact of public mass transit systems on real-estate values is an important application of the hedonic price model (HPM). Recently, a mathematical transformation of this approach has been proposed to account for the potential omission of latent spatial variables that may overestimate the impact of accessibility to mass transit systems on values. The development of a Difference-in-Differences (DID) estimator, based on the repeat-sales approach, is a move in the right direction. However, such an estimator neglects the possibility that specification of the price equation may follow a spatial autoregressive process with respect to the dependent variable. The objective of this paper is to propose a spatial Difference-in-Differences (SDID) estimator accounting for possible spatial spillover effects. Particular emphasis is placed on the development of a suitable weights matrix accounting for spatial links between observations. Finally, an empirical application of the SDID estimator based on the development of a new commuter rail transit system for the suburban agglomeration of Montréal (Canada) is presented and compared to the usual DID estimator.     

An analysis of Metro ridership at the station-to-station level in Seoul

While most aggregate studies of transit ridership are conducted at either the stop or the route level, the present study focused on factors affecting Metro ridership in the Seoul metropolitan area at the station-to-station level. The station-to-station analysis made it possible to distinguish the effect of origin factors on Metro ridership from that of destination factors and to cut down the errors caused by the aggregation of travel impedance-related variables. After adopting two types of direct-demand patronage forecasting models, the multiplicative model and the Poisson regression model, the former was found to be superior to the latter because it clearly identified the negative influences of competing modes on Metro ridership. Such results are rarely found with aggregate level analyses. Moreover, the importance of built environment in explaining Metro demand was confirmed by separating built environment variables for origin and destination stations and by differentiating ridership by the time of day. For morning peak hours, the population-related variables of the origin stations played a key role in accounting for Metro ridership, while employment-related variables prevailed in destination stations. In evening peak hours, both employment- and population-related variables were significant in accounting for the Metro ridership at the destination station. This showed that a significant number of people in the Seoul metropolitan area appear to take various non-home-based trips after work, which is consistent with the results from direct household travel surveys.     

高速铁路隧道长度对压缩波波前变形的影响研究

依据一维可压缩非定常不等熵流动理论,以及黎曼变量特征线方法,在控制方程中计入瞬态摩擦项及传热项,对不同长度无碴隧道内压缩波波前变形进行数值模拟。与国外现场试验比较验证,表明本文计算方法和程序是正确的;在长隧道计算工况下,隧道长度对出口处压缩波的压力梯度影响明显,为进一步研究微压波强度提供依据。     

Towards a practical method to establish comparable values of travel time savings from stated choice experiments with differing design dimensions

Individual’s process the information in stated choice (SC) experiments in many different ways. In order to accommodate decisions rules that are used in processing information, there is good sense in conditioning the parameterisation of stated choice design attributes on these rules. In particular, rules might be invoked to cope with the dimensionality of the SC design. In this paper, we investigate the impact of rules such as attribute aggregation and reference dependency on preference profiles for specific design attributes, as well as the design specification, as we vary the dimensionality of an SC design. The heteroscedastic extreme value logit model is estimated to identify the role of design dimensionality and attribute processing rules, after accounting for scale differences across sixteen pooled data designs The empirical evidence, drawn from a study in Sydney of car commuter route choice, suggests that accounting for the way that stated choice designs are processed, given their dimensionality, does make a statistically significant difference on measures of willingness to pay, as does accounting for scale differences between pooled data designs. This evidence has practical value in guiding the design of SC experiments and in adjusting results from different SC designs when comparing the evidence. We propose a simple adjustment formula to use in adjusting VTTS from different studies so that they are comparable. From a practical policy perspective, the evidence sends a warning about the risk of undervaluing mean VTTS if the attribute processing rules are not accounted for.     

Air pollution dynamics and the need for temporally differentiated road pricing

In this paper we investigate the effects of the temporal variation of pollution dispersion, traffic flows and vehicular emissions on pollution concentration and illustrate the need for temporally differentiated road pricing through an application to the case of the congestion charge in Stockholm, Sweden. By accounting explicitly for the role of pollution dispersion on optimal road pricing, we allow for a more comprehensive view of the economy–ecology interactions at stake, showing that price differentiation is an optimal response to the physical environment. Most congestion charges in place incorporate price bands to mitigate congestion. Our analysis indicates that, to ensure compliance with air quality standards, such price variations should also be a response to limited pollution dispersion.     

往来账管理问题及其控制制度

文章对某公司往来账款管理进行了分析,指出了该公司在往来账管理中存在的问题,并从内部控制环境、风险评估、控制活动、信息与沟通、内部监督五方面提出了加强往来账款管理的企业内部控制制度。