高逼真度燃油重心控制仿真平台开发

针对现有燃油重心控制仿真手段存在的不足,提出了基于Flowmaster、CATIA与VB交联仿真的燃油重心控制仿真技术方案,重点论述了该技术方案中涉及的燃油质量特性数据库建立和燃油系统交联仿真,在此基础上搭建了燃油重心控制仿真平台。以某型飞机为例,进行了燃油重心控制仿真分析,验证了平台的可行性和有效性。     

自动化计量学大会展出的坐标测量机

介绍自动化计量学大会展出的坐标测量机及其结构，性能和使用范围。     

电机瞬态转速测试

介绍了一种利用单片机和光电转速传感器来测量电机瞬态转速及电机转速变化过程的方法。该方法简单、反应时间快、准确度高。     

Solar activity dependence of total electron content derived from GPS observations over Mbarara

Vertical total electron content (VTEC) observed at Mbarara (geographic co-ordinates: 0.60°S, 30.74°E; geomagnetic coordinates: 10.22°S, 102.36°E), Uganda, for the period 2001–2009 have been used to study the diurnal, seasonal and solar activity variations. The daily values of the 10.7 cm radio flux (F_10.7) and sunspot number (R) were used to represent Solar Extreme Ultraviolet Variability (EUV). VTEC is generally higher during high solar activity period for all the seasons and increases from 0600 h LT and reaches its maximum value within 1400 h–1500 h LT. All analysed linear and quadratic fits demonstrate positive VTEC-F_10.7 and positive VTEC-R correlation, with all fits at 0000 h and 1400 h LT being significant with a confidence level of 95% when both linear and quadratic models are used. All the fits at 0600 h LT are insignificant with a confidence level of 95%. Generally, over Mbarara, quadratic fit shows that VTEC saturates during all seasons for F_10.7 more than 200 units and R more than 150 units. The result of this study can be used to improve the International Reference Ionosphere (IRI) prediction of TEC around the equatorial region of the African sector.     

Response of the EIA ionosphere to the 7-8 May 2005 geomagnetic storm

In this paper, response of low latitude ionosphere to a moderate geomagnetic storm of 7–8 May 2005 (SSC: 1920 UT on 7 May with Sym-H minimum, ∼−112 nT around 1600 UT on 8 May) has been investigated using the GPS measurements from a near EIA crest region, Rajkot (Geog. 22.29°N, 70.74°E, Geomag.14°), India. We found a decrease in total electron content (TEC) in 12 h after the onset of the storm, an increase during and after 6 h of Sym-H deep minimum with a decrease below its usual-day level on the second day during the recovery phase of the storm. On 8 May, an increase of TEC is observed after sunset and during post-midnight hours (maximum up to 170%) with the formation of ionospheric plasma bubbles followed by a nearly simultaneous onset of scintillations at L-band frequencies following the time of rapid decrease in Sym-H index (−30 nT/h around 1300 UT).     

大力发展技术市场 迎接知识经济挑战

扼要介绍了知识经济的概念及我国技术市场的状况；分析了技术市场对发展知识经济的重要作用，并就发展和培育技术市场、促进技术创新，提出了建议。     

制约理论(TOC)下的贡献毛益会计研究

制约理论（英文缩写：ＴＯＣ）是以服务于实现企业利润最大化为目的的一种生产经营管理新理念。ＴＯＣ认为：企业经营作为一个系统，总是存在着种种制约因素，而这些制约因素将直接制约着企业目标即企业财富增加的实现；持续不断地发现、改善和消除制约，就可不断增加企业利润；改善和消除制约的过程中，应当遵循“系统中部分最佳的总和不等于系统整体最佳”的原则；寻求实现企业目标的措施时，可将其核心问题归结为三个方面：即保证     

建立中小企业诊断专家系统的构想

运用考试法、直接认定法、临时聘请法遴选专家，组建由政府、企业和民间协会共同组成的专家系统，对中小企业（宏观）发展与（微观）运行中的问题进行咨询和诊断，是我国中小企业快速、健康发展不可缺少的条件。作者对建立这一专家系统的有关问题，提出了自己的看法。     

Cutting the bread

Why the draft Treaty on the Prevention of the Placement of Weapons in Outer Space, the Threat or Use of Force Against Outer Space Objects (PPWT) will not work - whereas the Code of Conduct for Outer Space Activities may.     

论文献生产

本文主要从经济学、社会学和角度讨论文献的生产，认为一次文献生产只有相对的“不确定性”，没有绝对的“不确定性”；文献生产分为两个阶段，其中第一阶段具有决定性意义。在此认识基础上，文章还分析了文献生产的劳动消耗和劳动对象的特点、性质。