F六H型飞机多发性电气故障分析

为掌握F六H型飞机多发性电气故障的发生规律,提高维修的针对性,文章收集了2003—2004年20架F六H型飞机134起电气故障的发生情况,按照电气各系统、设备故障分布情况进行统计。通过故障模式分析,统计出电源系统、起动系统、供油系统和液压刹车系统故障分布情况,进而分析各类故障存在的特点,并根据故障特点提出了解决故障的方法和建议。     

水力发电企业实现本质安全难点分析

文章分析了水力发电企业的特点、本质安全的内涵、安全生产的现状以及难点,提出了用两个到住和六个加强来创建本质安全型企业的建议和对策,具有较强的现实意义。     

挤扩支盘灌注桩技术及其应用研究

挤扩支盘灌注桩是最新的一种土建施工方法,为了能够很好地推广应用此方法,文章首先对分析了挤扩支盘灌注桩的结构模型和其形成机理,其次对其桩身的受力原理进行了详细分析,然后结合施工案例得出了挤扩支盘灌注桩在施工过程中的注意要点和挤扩支盘灌注桩的优点。     

被动防护网在遵义市某危岩带治理工程中的应用

危岩体通常存在于高陡边坡及陡崖上,是山区常见的地质灾害类型之一,在我国每年都造成大量的人员伤亡和经济损失。     

香港物流业发展对珠三角地区的启示

物流业是香港经济发展的支柱产业之一,其高水平的物流设施和经营管理代表国际物流的发展方向。文中对香港物流业发展的现状及特点进行了分析,对促进珠三角地区物流业的发展具有重要意义。     

地质工程机械管理对策分析

本文论述了地质工程机械管理的重要性,并详尽的分析了机械管理中存在的问题和提高机械管理的具体措施。     

Context matters: How existing sectors and competing technologies affect the prospects of the Swiss Bio-SNG innovation system

Emerging technological fields are affected by developments in their broader context. This article proposes a differentiation of context structures as a crucial step in the analysis of technological innovation systems. A thorough context analysis, so the argument, is essential for understanding the pace and direction of technology development and the prospects of an emerging technological innovation system. Empirical insights are provided for Bio-SNG, a technology in an early stage of development. The article discusses the conditions under which actors from different sectors (forestry, wood industry, and energy supply) may play a role in the emerging field. It is shown that Bio-SNG is likely to become a victim of the recent boom in wood-to-energy technologies that has favored investments in more mature but technologically inferior alternatives. The case provides lessons for policy making as it highlights how effective support schemes might foster a lock-in into technologies that are readily available.     

A network-based analysis of the impact of structural damage on urban accessibility following a disaster: the case of the seismically damaged Port Au Prince and Carrefour urban road networks

The magnitude 7.0 earthquake that struck Haiti in January 2010 led to an unprecedented effort in collecting and providing geographical information in support of humanitarian aid. Although most of the compiled datasets and generated maps were able to provide specific and detailed information regarding the location of damaged buildings and road interruptions, none or little information was available to describe the accessibility—or otherwise—of the urban space. Here we try to offer an alternative method to define the urban accessibility landscape in the aftermath of earthquake damage, by combining simple graph theory concepts and GIS-based spatial analysis to assess how the urban space accessibility decreases when the road network is damaged.     

高校图书管理数字化模式探究

21世纪,信息化时代的到来给高校图书的管理带来了巨大的挑战,高校图书管理进入了现代会、网络化、数字化的时代。高校图书管理必须改变传统的管理方法与服务方式,促进高校图书管理的数字化进程,提高高校数字化管理模式.     

物质流成本会计理论及其应用研究

由于现有物质流分析的缺陷与传统环境成本会计核算的不足,文章提出了物质流成本会计（MFCA）方法。该方法从物质流的“物理”与“价值”流转角度,根据输入输出模型,核算企业的合格产品成本与废弃物成本,找到企业资源损失的改善点,促使企业降低资源输入、提高资源使用率、减少废弃物输出。MFCA是企业进行低碳经济发展的一个有力工具。