神龙之首 世纪之星——民航三大区管中心空管自动化系统建设

2003年的初冬，对于民航京、沪、穗三大区管中心的建设者来说，是一段紧张、繁忙的日子。北京首都机场高速路旁，北京区管中心大楼内中外双方工程师正在忙着调机、核对系统数据；上海青浦淀山湖畔，上海区管中心机房中系统硬件设施的安装在有序地进行；广州城北西岭山下，广州区管中心的主体和配     

不符合RVSM标准航空器在RVSM空域飞行的管制程序探讨

2007年11月22日零时,在沈阳、北京、上海、广州、昆明、武汉、兰州、乌鲁木齐飞行情报区以及三亚飞行情报区岛内空域实施缩小垂直间隔(不含已经实施缩小垂直间隔的三亚飞行情报区海洋空域,以及     

每月一览

民航局空管局 1月5—7日,民航局空管局技术中心在三亚组织召开了三大区管自动化系统第十七次维修例会及软件支持工作年终总结会。民航局空管局技术中心余波主任、中南空管局刘伟副局长、三亚空管站兰建琼站长、技术中心软件支持处、北京、上海、厂州、成都、天津、合肥等地的技术保障负责人及各地技术专家参加了会议。     

不符合RVSM标准航空器在RVSM区域飞行的管制程序探讨

2007年11月22日零时，在沈阳、北京、上海、广州、昆明、武汉、兰州、乌鲁木齐飞行情报区以及三亚飞行情报区岛内空域实施缩小垂直间隔（不含已经实施缩小垂直间隔的三亚飞行情报区海洋空域，以及香港、台北飞行情报区）。     

海口空管中心举行技术保障工作发展规划研讨会

2005年6月2日至5日．海口空管中心在三亚空管站举行了技术保障工作发展规划研讨会。海口和三亚两地空管技术保障部的主要管理人员、分管领导、综合业务室和航务部相关领导共计20人参加了会议。海口空管中心主任陈超和三亚空管站站长兰建琼参加会议并发表讲话。会议以“营造一流的环境、培养一流的人才，     

感怀历程多磨难，喜看三亚谱新篇

1月26日,民航总局在京举办了三亚飞行情报区建立工作座谈会。民航总局局长杨元元,副局长杨国庆、王昌顺,原副局长阎志祥、鲍培德等领导参加了座谈会。参加座谈会的还有民航在京单位历年来参加三亚飞行情报区建立工作的有关人员代表。     

主动实施策略横向偏移程序在管制工作中的应用

2005年1月20日零时（北京时），三亚区域管制中心在洋区空域正式开始实施策略横向偏移程序，这是中国民航根据国际民航组织在洋区和陆地上空边远地区实施策略横向偏移程序的具体要求而实施的。     

华东空管局完成上海区管中心内话系统扩容

近日,为配合异地高空管制区引接工程的实施,华东空管局通信设备保障部顺利完成上海区管中心内话系统扩容项目,提高了地空通信的保障力度。本次上海区管中心内话系统扩容分为主系统、培训系统、旁路应急RES_Q系统、席位切换单元、总配线架MDF、TMCS监控系统等六大部分的硬件和软件扩容,其中旁路应急RES_Q系统在整个华东地区是首次使用。扩容后的上海区管中心内话系统可使培训系统与主系统完全独立,另外甚高频旁路应急RES_Q系统的使用无需人工干预,基本可满足今后接管其他高空管制区的需求,并为上海区管、进近提供了更为安全和丰富的设备保障手段。     

策略横向偏移程序在雷达管制中的应用

根据民航组织在洋区和陆地上空偏远地区实施策略横向偏移程序的具体要求,2005年1月20日北京时零时三亚责任区洋区空域正式开始实施该程序,旨在利用偏移来缓解前方航空器的尾流效应,提高航空器失去垂直间隔后的飞行安全性。该程序仅适用于具有自动偏移循迹能力的航空器,且由机组     

十年一剑 励精图治——回望华东空管十年历程

华东地区空中交通管理局成立于1997年2月28日,其前身为民航华东管理局航务管理中心(1990年9月20日成立)。2002年月1月8日,济南等8个空管中心(站)同时挂牌,加上原先成立的厦门航管站、青岛空管站,10个空管中心(站)正式划归华东空管局直接管理。目前,华东空管局共辖济南、合肥、南京、杭州、南昌、厦门、青岛、宁波、温州、福州等中心(站),以及上海区域管制中心、终端管制中心等上海地区9个基层单位,全局共有员工3800多人。     

On the stability of the track of the space elevator

A string moving with geostationary angular velocity in its radial relative equilibrium configuration around the Earth, reaching from the surface of the Earth far beyond the geostationary height, could be used as track for an Earth to space elevator. This is an old dream of mankind, originating about 100 years ago in Russia. Besides the question of feasibility from a technological point of view also the question concerning the stability of such a configuration has not yet been completely solved. Under the assumption that a proper material (carbon nanotubes) is available, making the connection possible technologically, we address the question of existence and stability of the radial relative equilibrium of a tapered string on a circular geosynchronous trajectory around the Earth, reaching from the surface of the Earth far beyond the geostationary height.     

On the Possibility of the Existence of Volatile Compounds in the Region of the Scott Crater on the Moon

In this paper, we analyze the illumination conditions, the thermal regime, and the possibility of deposits of volatile compounds existing in the vicinity region (NSR S5 region) near the southern pole of the Moon. It has been found that there are no permanently shadowed zones near the Scott crater and the NSR S5 region, though the temperature conditions allow the of compounds such as CH₃OH, SO₂, NH₃, CO₂, H₂S, C₂H₄, and water to remain stable relative to evaporation for a long time (≥1 Gyr). It has been also shown that compounds like CO and CH₄ cannot stably exist in these regions.     

对老年人体育锻炼负荷量监控方法的探讨

通过对老年人体育锻炼活动的情况进行相关调查，发现目前老年人体育锻炼中存在一些误区。因此本文针对这些现实情况提出，应根据实际情况运用一些简单易行的方法来对老年人体育锻炼实施医务监督，达到提高老年人体育锻炼的科学性。     

Estimation of the current density and analysis of the geometry of the current system surrounding the Earth

The results of an investigation of the distribution of plasma pressure, pressure gradients, and magnetic field near the equatorial plane in the plasma ring surrounding the Earth under magneto-quiet conditions are presented. Observational data obtained during the international THEMIS mission are used. The picture of the distribution of transverse-current density near the equatorial plane was obtained under assumption of observing the magnetostatic balance condition at geocentric distances from 6 to 12R _E. In estimating the integral transverse current it was accepted that in daytime sector the magnetic-field minima on magnetic field lines are not localized in the equatorial plane. Estimates of the integral transverse current were obtained, which demonstrate the possibility of closing nighttime transverse currents at geocentric distances of up to ～12R _E inside the magnetosphere, which form a high-latitudinal continuation of the ring current.     

实施“三位一体”教育模式 提高学生的综合素质

本文介绍了“三位一体”教育模式的内容,描述亍我们实施该模式所采取的措施及取得的成效。实践表明,“三位一体”教育模式能够提高学生的综合素质,为学生毕业后的发展打下坚实基础,对教育模式的改革具有一定的指导意义。     

Estimating the accuracy of the technique of reconstructing the rotational motion of a satellite based on the measurements of its angular velocity and the magnetic field of the Earth

The paper has studied the accuracy of the technique that allows the rotational motion of the Earth artificial satellites (AES) to be reconstructed based on the data of onboard measurements of angular velocity vectors and the strength of the Earth magnetic field (EMF). The technique is based on kinematic equations of the rotational motion of a rigid body. Both types of measurement data collected over some time interval have been processed jointly. The angular velocity measurements have been approximated using convenient formulas, which are substituted into the kinematic differential equations for the quaternion that specifies the transition from the body-fixed coordinate system of a satellite to the inertial coordinate system. Thus obtained equations represent a kinematic model of the rotational motion of a satellite. The solution of these equations, which approximate real motion, has been found by the least-square method from the condition of best fitting between the data of measurements of the EMF strength vector and its calculated values. The accuracy of the technique has been estimated by processing the data obtained from the board of the service module of the International Space Station (ISS). The reconstruction of station motion using the aforementioned technique has been compared with the telemetry data on the actual motion of the station. The technique has allowed us to reconstruct the station motion in the orbital orientation mode with a maximum error less than 0.6° and the turns with a maximal error of less than 1.2°.     

Optimization of the trajectory of the spacecraft insertion into the system of heliocentric orbits

The possibility of the spacecraft insertion into the system of operational heliocentric orbits has been analyzed. It has been proposed to use a system of several operational heliocentric orbits. On each orbit, the spacecraft makes one or more revolutions around the Sun. These orbits are characterized by a relatively small perihelion radius and relatively high inclination, which allows one to investigate the polar regions of the Sun. The transition of the spacecraft from one orbit to another has been performed using an unpowered gravity assist maneuver near Venus and does not require the cruise propulsion operation. Each maneuver transfers the spacecraft into the sequence of operational heliocentric orbits. We have analyzed several systems of operational heliocentric orbits into which the spacecraft can be inserted by means of the considered transportation system with electric propulsion (EP). The mass of the spacecraft delivered to these systems of operational orbits has been estimated.     

从应变计现状看电阻式传感器的前景

电阻式传感器的核心部件——电阻应变计是目前最常用的应力分析的敏感元件。也常用于测量力、压力、扭矩和加速度等物理量。作者简要回顾了电阻应变计的发展历史，介绍了电阻应变计的结构、分类及现状，展望了电阻式传感器的前景。     

System of works on numerical modeling of the dynamics of the structure of the Space Radiotelescope in the RadioAstron project

The results of modeling the dynamics of the Space Radiotelescope are presented. The results of ground-based vibration-dynamic tests are used to validate the calculation models and estimate the damping levels. The dynamic distortions of the reflecting surface caused by the operation of the pointing mechanism of the high-gain antenna are estimated.     

复杂受载条件下固体火箭发动机壳体屈曲应力的估计

论文简略介绍了静力轴压下园柱壳屈曲应力的工程计算方法,对某固体火箭发动机壳体的复杂受载条件对壳体屈曲应力的影响进行了分析,并对该火箭发动机壳体屈曲应力如何估计提出了建议。