军机维修一线体系管理的研究与设计

应用WSR系统工程方法．对军机维修系统进行分析和识别，构建了军机维修保障系统的管理控制模型．在此基础上，研究、设计并在军机维修一线实践了这一体系管理思想方法。     

基于Web的复杂武器装备采办综合集成研讨厅的研究

以飞机采办项目中的决策支持为研究对象,在分析综合集成研讨厅在面向飞机的武器装备采办系统中的重要地位的基础上,提出了一种基于Web、面向飞机的武器装备采办综合集成研讨厅的体系结构,分析讨论了实现综合集成研讨厅的关键点,并设计开发了基于Web的武器装备采办综合集成研讨厅原型系统.本文通过研究证实,综合集成研讨厅在面向飞机的...     

民用飞机复合材料C型框分析方法研究

以层压板理论为基础,提出一种复合材料C型框结构的工程分析方法,并通过试验给出了C型框结构设计许用值。通过工程分析结果与试验结果的对比,说明此工程分析方法可用于指导C型框结构设计。     

高校大学生音乐素质分析与研究

本文通过对学院音乐素质教育的调研，分析学校学生目前的音乐水平，从培养人才的综合素质入手，提出了在学校普及与提高音乐素质教育的思路与对策。     

What is wrong with space system cost models? A survey and assessment of cost estimating approaches

Despite several decades of research and refinement in cost estimating tools and practices, the final cost of US space programs continues to exceed initial cost estimates by an average of more than 45%. Thus, program cost models not only exhibit error, they are seriously biased. A structured review surveyed techniques, approaches, models and conceptual tools related to space program cost estimating, to understand cost in complex space systems. Analysis shows problems of cost estimating result from the growing complexity of space programs, failures in managing growth, and mission failures. Although there is greater expectation for the models to accurately predict program costs, the current models used for seeking funding for large space programs are inadequate due to (1) inability to predict future, (2) lack of insight, and (3) process replaces judgment in decision making.     

测量质量工程技术在计量管理中的应用

测量质量工程技术是日本著名质量工程学专家田口玄一博士创立的一门新的工程技术(也称田口方法)在测量领域中的具体应用.它对提高计量管理水平,促进企业经济效益是非常有益的.本文着重介绍了这一新技术运用到计量管理中的几项突出表现.     

浅析自动校准软件的测试

测试是自动校准软件开发的重要内容,也是保证自动校准软件质量的重要手段.运用软件工程的思想并结合国内校准实验室实际状况,着重介绍了自动校准软件测试的组织管理工作、方法和测试的一些原则.     

SETI implications of gravitational assist via chaotic trajectories of binary objects

Extrapolating from the technique of gravitational assist via chaotic trajectories of binary objects, this paper considers how such techniques might be used in other systems. We examine which types of systems are the best candidates for harvesting gravitational energy for payload ejection. We also consider what signatures might be present in either the asteroid orbits or radiation of the central body if extraterrestrial intelligences were to use such techniques about these candidate systems.The simulation studies show that current technology cannot approach the sensitivity needed to detect either of these signals. Instead, we provide these results as guidance to studies in coming decades on patterns that may indicate the use of an asteroid ejection system.     

Private property rights on asteroid resources: Assessing the legality of the ASTEROIDS Act

On June 10, 2014, a bill proposing to establish and protect (private) property rights on asteroid resources was introduced in the US House of Representatives.Regardless of its effective chances to become law, the presentation of the Bill raises numerous legal questions, particularly concerning the status of extraterrestrial natural resources and the consistency of what the Bill suggests with international space law.The purpose of the present viewpoint is to address and clarify the above questions.     

Asteroid and comet hazard: Identification problem of observed space objects with the parental bodies

This article focuses on the genetic identification of observed small cosmic bodies with alleged parental bodies; namely, comets, asteroids and meteoroid swarms. There is a problem of the upper D-value limit as a measure of proximity between the orbits of the bodies in the five-dimensional phase space (Southworth and Hawkins, 1963). In the study of genetic relationships of the comet and meteor complexes, the D value is usually taken as equal to 0.2 for all meteor showers. However, the upper D limit should be investigated for each meteoroid complex. For example, such investigation was performed for the Taurid meteor complex (Porub?an et al., 2006). In this paper, the upper D-criterion limit value was investigated for the Perseid meteor shower. The 1862 III Swift–Tuttle comet is its parental comet.