宇航科学文献情报源初析

本文通过对《宇航学报》1981～1988年322篇论文中2466条参考文献的统计分析,得出以下结论,(a)宇航科学的文献情报源重在期刊类文献。(b)以《宇航学报》、《航空学报》、《AIAA,Jourual》等六种期刊类文献为重点文献。(c)中文的引文作者和论文作者相对集中。(d)期刊类文献的半衰期为8～10年。     

用科学发展观构建高职高专学报创新发展之路

胡锦涛同志倡导的科学发展观，不仅对全面实现建设小康社会、构建社会主义和谐社会的宏伟目标有着极其重要的意义，同时，对高职高专学报的创新和发展，也有着非常重要的意义。高职高专学报目前存在着实力不强、质量不高、特色不明、办刊因难的局面，要改变这种状况，就要贯彻落实科学发展观，明确学报的发展方向、本质和核心，发展的基本内涵和基本要求，使高职高专学报在林立的高校学报队伍中真正拥有一席之地。     

科技论文的投稿策略

目的为作者的科技论文写作和成功投稿提供借鉴和帮助；方法以编辑的视角多方面解读影响科技论文投稿命中率的因素；结果从了解并选择所投刊物，撰写科技论文应有的几个注重，投稿时若干注意事项和策略等三方面分析了科技论文的投稿策略；结论论文投稿有技巧和策略可循，但是作者真正应下工夫的地方，不是囿于方法，也不是囿于投稿策略和人际关系，而是要多参加科研实践，掌握素材，勤于笔耕，保证论文的学术价值。     

投资项目经济评价的意义,方法及程序

经济评价是项目投资风险分析的重要工作。本文阐述了投资项目经济评价的目的，意义，内容及特点，介绍了经济评价的方法及程序；提出了经济评价工作中应注意的事项。     

A comprehensive numerical model investigating the thermal-dynamic performance of scientific balloon

The increase of balloon applications makes it necessary for a comprehensive understanding of the thermal and dynamic performance of scientific balloons. This paper proposed a novel numerical model to investigate the thermal and dynamic characteristics of scientific balloon in both ascending and floating conditions. The novel model consists of a dynamic model and thermal model, the dynamic model was solved numerically by a computer program developed with Matlab/Simulink to calculate the velocity and trajectory, the thermal model was solved by the Fluent program to find out the balloon film temperature distribution and inner Helium gas velocity and temperature field. These models were verified by comparing the numerical results with experimental data. Then the thermal and dynamic behavior of a scientific balloon in a real environment were simulated and discussed in details.     

Scientific objectives and payloads of Tianwen-1, China’s first Mars exploration mission

This paper describes the scientific objectives and payloads of Tianwen-1, China’s first exploration mission to Mars. An orbiter, carrying a lander and a rover, lifted-off in July 2020 for a journey to Mars where it should arrive in February 2021. A suite of 13 scientific payloads, for in-situ and remote sensing, autonomously commanded by integrated payload controllers and mounted on the orbiter and the rover will study the magnetosphere and ionosphere of Mars and the relation with the solar wind, the atmosphere, surface and subsurface of the planet, looking at the topography, composition and structure and in particular for subsurface ice. The mission will also investigate Mars climate history. It is expected that Tianwen-1 will contribute significantly to advance our scientific knowledge of Mars.     

重大科研项目的风险管理方法

阐述了科研项目风险及风险管理的概念,分析了重大科研项目风险管理的主要内容,包括风险规划、风险评估、风险处理和风险监控,针对一类科研项目,提出了需要重视的8个关键风险区,并对加强科研项目的风险管理提出了3条具体的措施建议。     

Telemetry,telecommand and safety sub-systems for scientific ballooning from Hyderabad

Highly sophisticated balloon-borne scientific payloads have stringent requirement on the telemetry and command system. The development and fabrication of the on-board TT&C package for telemetry, tracking, command, safety and ranging for these experiments is done in-house at the National Balloon Facility (NBF) at Hyderabad. In the last few years, we have made major improvements both in the ground station and the on-board sub-systems, thereby improving the data quality, data handling speed and the general flight control along with aviation safety. The new system has telemetry data rate up to 1 Mbps. A reduction in weight, power and cost of the reengineered on-board integrated package has also lead to the ease of operation during field tests prior to launch and at remote recovery sites. In this paper, we describe the details of the new control package, its flight performance and our plans for portable S-band telemetry and telecommand system to cater to the balloon flights from Antarctic station and long duration balloon flights.     

科学评价党史，正确处理历史遗留问题——论邓小平指导党史研究的基本原则

本文系统阐述了邓小平同志指导党史研究、正确处理历史遗留问题的六大原则：“向前看”原则;“宜粗不宜细”原则;“有错必纠”原则;客观性原则;分析个人责任与分析复杂背景相结合的原则;总结成功经验与汲取失败教训相结合的原则。文章深入分析了上述原则的内涵、要求及其意义。     

浅谈洪都航空工业集团电子档案的管理

结合洪都航空工业集团科研和生产的实际情况，从型号研制与生产的角度人笔，阐述了电子档案管理存在的问题，并提出了解决办法。