基于M／N检测的高距离分辨率信号的速度补偿

本文介绍了进步频率高距离分辨率信号，分析了运动速度对该高距离分辨率信号的影响，提出了基于多散射中心联合检测（Ｍ／Ｎ检测）的速度环路补偿方案。该方案使用多距离单元的联合检测完成高距离分辨率信号的最佳速率补偿，同时进一步降低目标的虚警概率，提高了目标的发现概率。     

公开市场操作与利率期限结构行为——基于混频数据信息的研究视角

在混频数据信息环境中,精准识别公开市场操作(央行政策利率)和国债收益率曲线(基准利率体系)之间的关联机制至关重要,其影响了货币政策期限结构传导的有效性。本文在混频Nelson-Siegel(N-S)利率期限结构模型框架下,引入央行政策利率,揭示公开市场操作与利率期限结构(水平、斜率、曲度)因子之间的作用机制。实证结果表明:混频数据信息条件下,引入的公开市场操作信息显著改进国债收益率曲线的拟合效果;斜率因子冲击对公开市场操作具有显著的正向影响,而利率期限结构因子对政策调控的反应不敏感。进一步研究表明,2015年以来,公开市场操作对斜率因子的影响逐渐扩大,政策利率向国债收益率曲线的传导效率得到显著提高,我国现代货币政策框架日益健全。     

高投资、宏观成本与经济增长的持续性

过去20多年,中国高投资—高增长的发展模式以宏观成本积累为代价。增长是中国今后相当长时期的主题,但是以高成本为代价的高投资—高增长发展模式的持续性如何?本文从理论上说明了中国高投资的政府激励机制及宏观成本边界和高成本增长的临界点;进而指出,在开放经济中,资本流动、外部需求和供给冲击构成高成本投资模式的现实约束,政府必须权衡粗放式高增长的宏观收益和成本,制定相应的政策来约束低效率的投资行为,实现全社会的福利优化。     

适应高技术战争需要,加快我军装备物流建设

强大的军事物流体系已经成为高技术战争强有力的支撑。军事物流的能力和水平，已经成为决定战争进程和结果的关键性制约因素。本文从高技术战争的特点和发展趋势出发，提出了高技术战争对军事物流的需求；基于对美军军事物流的分析，对装备物流的基本内涵、装备物流建设的发展战略和需要重视的问题进行了初步的探讨。     

中国银行业不良资产证券化信用风险评价研究

本文首先论述了国际通用的各信用风险模型的适用条件，提出改进的KMV模型作为度量我国不良资产证券化信用风险的模型。同时，提出了计算其违约概率的方法。然后根据我国不良资产的实际情况，建立了一个具有普遍性的模拟的不良资产包，分析其证券化中各个不同发债规模下的信用风险，得出其资产变现收入在对数正态分布下和真实分布中的违约概率，为我国不良资产证券化的风险控制在一定程度上提供了理论依据和技术支持。     

射频识别技术在商品储运领域的应用

文中介绍了RFID技术在商品储运领域中的优势,然后从危险品跟踪、集装箱跟踪、食品跟踪和仓库管理等方面列举了RFID在商品储运领域的典型应用,最后分析RFID在商品储运领域的应用环节。     

API Spec 15HP-1995《高压玻璃纤维管线管规范》的分析与介绍

本文介绍了高压玻璃纤维管线管规范的制定技术背景和主要特点,分析了前后两版的修订内容及原因.     

Anthropogenic and topographic correlates of natural vegetation cover within agricultural landscape mosaics in Turkey

Natural vegetation enhances the value of agricultural landscapes for people and wildlife. However, the role of anthropogenic versus topographic factors in driving the extent of natural vegetation cover within agricultural lands at large spatial scales remains unexplored. I assessed the influence of anthropogenic and topographic variables on the extent of agricultural mosaics with high natural vegetation cover in the country of Turkey where a large extent of natural and semi-natural vegetation is maintained by traditional agriculture. GIS layers depicting human land use, elevation, slope, roads and population data were obtained and summarized at two spatial scales, within provinces and for 100 km² grid cells covering the country’s entire agricultural land area. Average farm size was also obtained at province level. Hierarchical Partitioning was conducted to determine the independent effect of anthropogenic and topographic variables on the variation in agriculture with high natural vegetation. Slope had the largest independent effect on the variation in the proportion of agricultural mosaic with high natural vegetation cover. The extent of agricultural and settlement area also explained much of the variation in natural vegetation across both grid cells and provinces. The proportion of natural vegetation increased as human population and road density decreased across grid cells and as average farm size decreased across provinces. These results suggest that while topography is the primary driver of natural vegetation cover within agricultural mosaics in Turkey, the pressures associated with urban development and agricultural industrialization may also influence the cultural and wildlife value of agricultural landscapes.     

巷道快速掘进技术在贵州省煤与瓦斯突出煤层中的探讨与应用

巷道快速掘进技术是一项系统工程。为了实现矿井高产高效,必须以巷道快速掘进技术为前提和保障。本文以贵州省为例,探讨了巷道快速掘进技术的研究现状及影响因素。针对贵州某矿突出综合检测指标经常超限、掘进速度慢等问题,采用了高压水射流割缝与瓦斯抽放边抽边掘相结合技术。研究表明:该项技术能有效削弱煤层突出危险性,大幅度提高瓦斯抽放量且巷道掘进速度提高了2~3倍。同时根据贵州省的本土情况,提出了针对性地建议和措施,能为巷道快速掘进技术的推广与应用提供一定的指导。     

Limits to air travel growth: The case of infrequent flyers

Most air travel forecasts predict a long-term rise in demand, with limited consideration of any limits to growth. However for any given population there will be those who have not flown recently (‘infrequent flyers’), as well as non-flyers, and little is known about these and whether they are likely to fly in the future. The aim of this paper is to analyse the characteristics of these groups and the reasons for their travel habits, using the UK as a case study. The findings show that infrequent flyers make up a heterogeneous consumer group whose non-flying is influenced more by budget constraints and personal circumstances than specific aviation factors. Comparisons with Belgian, German and Dutch infrequent flyers indicate some similarities, although there are differences in the relative importance of the reasons for not flying. The findings have implications for the aviation industry and regulators, and policy areas related to consumers and climate change.