长株潭城市群的城市功能互补性研究

长株潭城市群作为两型社会建设综合配套改革实验区,三个城市的功能存在禀赋差异,因此,可以使得三个城市的功能实现互补,从而可以在功能互补的基础上实现长株潭一体化。本文在研究三个城市的经济、硬件设施、文化等方面的禀赋之后,发现这个三个城市的功能能进行较好的互补,但城市一体化进程一直较为缓慢,针对性地提出了一些对策。     

Improving the Strategy-Innovation Link

In spite of the tremendous impact that new technology has had on every aspect of business operations, we have yet to develop a satisfactory way of incorporating innovation in our strategic thinking processes. However, we are making progress. A further step in our understanding is provided in this article by Gerhard Mensch, the recent winner of the Humboldt prize for his creative work in economics, and Vasudevan Ramanujam. They collaborate in developing a model that links strategy and innovation by relating innovation activities to strategic goals of the firm and the external pressures that are perceived by management.     

航天测控地面站监控自动化

本文阐述了航天测控地面站监控自动化的作用、特点和技术要求,并提出了总体设计的原则和方法。重点介绍了监控自动化微机网的功能设计、配置设计和接口设计及其技术实现的难点和对策。     

智能电机监控器在螺旋输送机上的应用

介绍了电机智能监控器的特点和功能,重点分析了智能电机监控器在螺旋输送机上的应用以及取得的效果,说明了技术革新的重要性。     

浅谈天津西站站房基础设计

本文通过对天津西站站房基础工程的设计，介绍了大型铁路枢纽工程，在复杂边界条件和复杂地质情况下，基础设计的一般过程，阐述了基础设计过程中抗浮设计、超长底板设计以及非常规基础构件设计，对类似工程具有很好的借鉴意义。     

长轴深井泵振动值超标原因分析与处理

简要介绍龙潍水电站大型长轴深井泵振动值超标的情况,详细分析长轴深井泵振动值超标的各种原因,并提出解决处理方案和防范措施,给从事水泵维护检修工作的人员提供经验借鉴。     

映秀湾水力发电总厂计算机监控系统改造

文章基于映秀湾水力发电总厂和所属3个电站的改造项目,介绍了LCU对应多个控制中心的结构配置和控制方式,并重点阐述了NTP网络对时、厂站问的双环网结构及集控中心上位机直接与电站侧PLC通信的模式,对今后一厂双控的流域控制有一定的工程参考意义。     

Attracting travellers to the high-speed train: a methodology for comparing potential demand between stations

The High-Speed Railways (HSR) which are currently operative in 12 countries throughout the world include a wide range of stations with a highly varied capacity to attract travellers. Although there are various reasons for these differences, we have focused on the ones that can be quantified for further comparison. The main purpose of this study was twofold. First of all, we sought to identify stations with a low capacity to attract travellers and to explain the reasons for their concentration in certain countries rather than others. Secondly, we looked for a simple, but widely acceptable, method with which to calculate the capacity to attract users to HSR stations. This would help to establish a better way of allocating financial resources for public investment. This approach enabled us to identify those stations that had little or no potential at all and which had been established for essentially political reasons in countries where the concept of territorial cohesion had been applied in an inappropriate way. This led us to a number of observations relating to the railway policies undertaken in the countries studied and to underline the need for greater international coordination in areas like Europe and for better justified HSR policies. The calculations presented in this article use data relating to the urban populations which live in the vicinity of the world’s HSR stations, the distance from each of these stations to the nearest urban centres and the level of the corresponding regional GDP. All of this information has been used to build a GIS to facilitate analysis and pave the way towards a general comparative approach in which stations would be classified according to their capacity to attract travellers. Such an approach could also be used in areas in which lines are currently under construction and/or where future projects – such as the TEN-T in Europe – have already been approved but not yet executed. Our approach will make it easier to obtain data to show the potential success of, and need for, a HSR connexion as a preliminary step within the decision making process. This constitutes a significant contribution to the debate about the need to assess political decisions concerning HSR investments. It also highlights the need to encourage improved intermodality around railway stations and particularly around those located in non-metropolitan areas.     

基于VPN实现城市污水泵站远程集中监控

针对城市污水池零星分布在整个市区的特点，通过采用虚拟专用网（VPN）的隧道和加密等安全技术，开发出一套远程控制软件，高效地实现了对整个城市污水泵站的监控与管理。文章结合项目示例，介绍该方法的构架和工作原理，以及采用的VPN技术和软硬件设备。该方法应用效果良好。     

基于配流方案的树枝形专用线取送车时机的确定

由于每个车站设备条件、作业组织方法、车流性质等各不相同,难以用一种通用的模型来描述车站的取送车作业问题。我国大多数编组站的专用线都采用树枝形布置形式,因此以此为例,依据货场、专用线有无合适去向的车流等情况,结合车流到发的不同方式分为取车和送车两个过程,并分别给出合理取送车时机的计算方法。