南岸区水土保持规划的效益预测分析

水土保持作为改善农业生产条件,提高人口环境容量的一项措施,是改善生态环境的重要手段.本文对南岸区水土保持规划进行生态效益和静态经济效益预测分析;应用森林作为"大气的总调度室",分析了其环境作用及带来的间接经济价值,同时通过效益费用比R、净效益C、投资回收年限T、内部回收率I和敏感性分析,得出水土保持规划从生态和经济上的可行性.     

中国能源需求长期均衡和短期波动的协整分析

为了研究经济增长与能源需求之间的波动关系,利用协整分析、误差修正模型等现代计量经济方法构造了中国能源需求的长期均衡模型和短期波动的误差修正模型,对我国能源需求的影响因素进行了深入分析,实证测算出影响能源需求的变量组成：国民生产总值、总人口敷、产业结构变化、能源消费结构变化,以及居民消费水平,这些解释变量能够解释能源需求变化的99．1%．     

高层停车系统现代设计分析方法研究

随着汽车社会保有量的增多,使得立体停车系统成为社会的必然需求.根据这一发展趋势,作者在查阅大量国内外资料的基础上,分析了高层停车系统的设计瓶颈,对钢结构系统、机械传动系统提出模块化设计思路,完成了基于特征的、面向工程的高层停车系统结构、机械、电拖、控制、管理、作业仿真的设计分析与绘图软件"PARK".软件全部采用Visual Basic6.0语言编制,根据系统集成的原则和方法,实现了VB与SAP,VB与AutoAD以及工程数据库信息流的链接和集成.整个CAD/CA软件在Windows98平台上运行,界面友好,操作简便,可视化程度高,可应用于企业的产品设计和技术投标.     

产业国际竞争力的信息评价方法

研究产业的国际竞争力 ,重点是关注国际竞争性较强的产品和产业 ,评价有关环境信息对产业竞争力的影响 .分析方法可主要采用价值链方法、显示指标计算方法和多元统计分析法     

一元回归统计分析模型在土地利用动态监测中的应用

概述了一元回归统计分析模型的几种常见类型 ,给出了各种函数的曲线标准形式和将非线性问题线性化的方法 ;详细阐述了计算软件的功能和使用方法 ,并以河北省某市建成区为实例进行计算 ,证明方法可行 ,原理正确 ,结果可靠     

中国区域投资的有效性研究

运用数据包络分析（DEA）和广义BCG矩阵法对区域投资的有效性进行分阶段研究,得出具有对策性意义的结论：改革开放大的地区实现经济高速增长,但不能促进投资的有效性的提高,即区域投资相对有效性逐步降低,并呈现东部高西部低的梯度分布,但是东西部下降幅度高于中部地区,新兴工业区的有效性低于沿海老工业区,整体上形成过分追求增长速度的具有马太效应的区域投资格局,致使各个省市区经济运行情况不平衡,并对其致因进行了分析。     

2009-2013年14种图书馆学核心期刊载文被引分析

利用CNKI的《中国期刊全文数据库》网络版作为统计源，采用文献计量和对比分析的方法，从载文量和被引量、被引基金论文、单篇被引频次区间分布、高频次被引文献分析等方面，对《中文核心期刊要目总览》2011年版确定的14种图书馆学核心期刊从2009—2013年的载文进行了研究和统计分析，以了解各研究成果的交流、利用情况及其对我国图书馆学学术研究领域的影响，从而掌握各期刊的发展趋势，并与前期的研究成果进行比较，以期为后继研究提供参考。     

A palynological and palaeoclimatological record from the southern Philippines since the Last Glacial Maximum

A palynological analysis of a marine sediment core in the southern Philippines,provides a detailed regional vegetation and climate history for the West Pacific Warm Pool(WPWP)since the Last Glacial Maximum(LGM).Chronology was determined by a detailed oxygen isotope record.A higher representation of pollen from tropical upper montane rainforest during the LGM indicate that this forest type moved down along elevation,probabaly due to the lowered temperature.During the last deglaciation and the early Holocene,mangroves were more expanded and tropical mid and upper montane rainforests were restricted,suggesting a rising sea-level and temperature increase.Herbaceous pollen and pteridophyte spore records indicate a much drier condition during the LGM than the Holocene.Mangrove development is controlled by conditions at the river mouth influenced by river discharge.Pteridophyte spores are abundant in wet conditions and are mainly transported by rivers.During the mid-Holocene,the reduction in mangrove pollen and pteridophyte spore appears to be a result of climate change:mainly decrease in river discharge.This may have been affected by the decreasing intensity of the Southeast Asian Monsoon,and the increasing frequency and intensity of warm ENSO events,El Ni?o,in this region.     

Holocene palynological records and their responses to the controversies of climate system in the Shiyang River drainage basin

The Shiyang River drainage basin is located in the northwest margin of the Asian monsoon region. Previous studies reached different conclusions about Holocene climatic changes in the basin. Some studies suggested the Holocene climatic changes were mainly controlled by the Asian monsoon and that the climate was relatively humid during the early Holocene (11.6-7.1 cal ka BP). Other studies found the mid-Holocene Climatic Optimum (7.0-5.0 cal ka BP), and this climate condition was similar to the Holocene westerly wind pattern in arid Central Asia. The modern climate is affected by the Asian monsoon and westerly wind in the drainage basin, and the Holocene climatic records showed two different Holocene climatic patterns-a westerly wind pattern and monsoonal pattern. However, it remains unclear what caused the two different Holocene climatic patterns to co-exist in the region. The palynological records are the main evidence for the Holocene climatic changes in the basin. This paper focuses on palynological records for different parts of the drainage basin. Among them, QTH02, QTL-03 and Sanjiaocheng records are located in the terminal lake, and the Hongshuihe record is located in the middle reaches of the basin. In the terminal lake, the palynological records of QTH02 and QTL-03 are similar, but the Sanjiaocheng record differs. The difference is mainly affected by the variable pollen assemblages in the different locations of the lake basin. From comparison and synthesis of the four palynological records, we concluded that the millennial-scale Holocene climatic changes were affected by the combined effects of the Asian monsoon and westerly wind in the drainage basin, which show the complicated Holocene climatic pattern in the northwest margin of the Asian monsoon.     

基于持续期限模型的中外股市泡沫实证分析

基于持续期限模型,利用美国、日本、中国台湾地区和中国大陆股市的数据,研究各地股市泡沫的存在性,并比较泡沫程度是否会随着信息披露要求的放松,变得更加严重。实证结果表明,各地都存在显著的泡沫,并且随着信息披露要求的放松,各地股市的泡沫程度也变得越加明显和严重,其中中国大陆股市泡沫最为严重,接下来分别是中国台湾地区、日本和美国。