基于引文索引的航空发动机咨询通告分析方法

引入了引文索引方法对整部航空规章中所有咨询通告进行整体上的分析,提出了一种基于引文索引的航空发动机咨询通告分析方法.首先,确定某部航空规章的咨询通告为研究对象,根据咨询通告间的相互引用关系画出引文网络图;然后,在引文网络图的基础上结合评价指标的定性分析和定量分析对咨询通告进行全面的研究分析;最后,应用此方法对美国某部航空规章的咨询通告进行实例分析,同时也说明了基于引文索引的航空发动机咨询通告分析方法的可行性.     

旋转飞行器应答式速度测量研究

由于受单天线的方向性限制,采用传统的天线模式不能实现对旋转飞行器连续跟踪测量。通过多天线分集和合成2种模式,可以实现信号的全向接收和转发,但同时带来接收信号阶跃以及信号干涉区等新问题,这些问题会导致信号变化剧烈,能否正确描述信号动态下的特征,并分析其对设备多普勒回路的影响是实现连续高精度跟踪的关键。本文推导了多天线动态下的双程应答多普勒测速方程,详细分析了分集、合成2种天线模式下信号的特征及信号对多普勒回路的影响,并根据分析结果对多普勒回路提出改进建议。     

Statistical study of twist values of transequatorial loops and the relationship with flares

In this paper, the twist values of ‘S’-shape transequatorial loops (TLs) from 1991 to 2001 are calculated, GOES soft X-ray flares dataset of the active regions connected by these TLs are investigated. The result shows the twist value of the TLs has a weak relation with the flare flux. There is no clear correlation between the twist value and the distance between the footpoint of TLs and location of flare in the corresponding active regions.     

固态染料敏化太阳能电池用聚苯胺-乙炔黑空穴导体的制备

以粘土状的聚苯胺-乙炔黑导电材料为空穴导体,制备了固态染料敏化太阳能电池.研究结果表明,将乙炔黑颗粒加入到聚苯胺电解质中,可明显提高该固态染料敏化太阳能电池的光电转换效率.这是由于加入的乙炔黑不仅可以提高聚苯胺电解质的空穴迁移率,改善其可润湿性,而且加强了电解质与光阳极以及对电极之间的界面接触性.最后,加入50%乙炔黑的聚苯胺电解质的电池光电转换效率达到了液态电池的48%.因此,聚苯胺-乙炔黑复合电解质可以作为有效的空穴导体材料,应用到固态染料敏化太阳能电池中.     

微小薄板类零件的装夹及毛刺转移方法研究

针对微小薄板类零件装夹定位困难、毛刺去除难度大的工艺特点,提出"压板压装坯料+微型夹具固定零件"的微型组合装夹方法,设计三件套微型组合夹具,并提出一种毛刺转移方法,有效解决了微小薄板类零件的装夹及去毛刺难题,提高了微小薄板类零件的加工质量。     

Increase in fish abundance during two typhoons in the South China Sea

A fish monitoring program was conducted in the northern region of the South China Sea from March 2009 to December 2010. During this period, two typhoons, GONI and Koppu, hit this region consecutively in August and September 2009. The fish and satellite data were analyzed to understand the influence of the typhoons on fish activities. The results showed that the fish species number (FSN) increased by approximately 14.29% and 14.81% after the two typhoons, GONI and Koppu, respectively. The five increased fish species included three estuarine species and two shallow sea species. However, one shallow sea species was also absent. In the nearshore (near the Pearl River Estuary) and offshore (along the typhoon’s track) regions after GONI, the FSN increased by approximately 24% (nearshore) and 52.63% (offshore), with estuarine species accounting for 42.86% (nearshore) and 33.33% (offshore) of the fish species; after Koppu, the FSN increased by approximately 15.38% (nearshore) and 163.64% (offshore), with estuarine species accounting for 60% (nearshore) and 26.32% (offshore) of the fish species. In the increased records, small and medium-sized fish species were dominant nearshore, and small fish species were dominant offshore. The FSN increased to a maximum value between the 5th and the 10th days after the typhoon nearshore and between the 3rd and 8th days after the typhoon offshore. The results indicated that river discharge, triggered by the typhoon’s nearshore rainfall, as well as offshore upwelling nutrients, also triggered by the typhoons, and may have played important roles in the variability of fish species. This research found that the increase in the FSN was associated with the typhoons in the northern South China Sea.     

多雷达跟踪处理在空中交通管制领域的应用

多雷达跟踪处理系统是目前国际上最先进的空中交通管制（ＡＴＣ）系统,广州空中交通管制中心是国内第一家使用融合式多雷达处理方式的管制中心。描述了目前国际上实现多雷达跟踪的几种方法,并结合广州空中交通管制中心多雷达跟踪处理系统的建设,指出我雷达跟踪处理系统建设过程中需要解决的几个问题及解决方法。     

镁合金焊接的研究与发展

综述了三种典型的镁合金焊接技术的研究现状，分别为钨极氩弧焊、激光焊和搅拌摩擦焊，分析了镁合金焊接的研究和应用现状，讨论了这些焊接方法的优缺点，并指出镁合金焊接研究中存在的问题和今后的发展方向。     

中国民航货运市场分析和预测

对中国民航货运市场的特点及其发展状况进行了对比分析，剖析了国民经济与民航货运的内在关系，从而建立了货邮运输量和货邮周转量的非线性回归模型，预测出2005-2020年的中国航空货邮运输量和周转量，为中国民航货运部门进行决策提供了一定的科学依据。     

京津奥运智能型多式联运发展模式

以北京和天津之间的多种城际交通方式为研究实例,从多式联运的角度分析了北京和天津奥运交通联合运作模式,并重点研究了奥运期间京津两地之间空铁联运和陆空联运的具体运作设想,提出在京津间建立高速铁路与航空联运的新型城际交通运输模式。