月球测绘在月球探测中的应用

根据探月历史概述了月球测绘与月球探测的关系、月球探测的焦点和我国探月计划；分析研究了月球测绘的关键技术；论述了月球测绘在月球探测中的应用。     

虚拟压缩恢复基本原理及应用实例解析

概述了虚拟压缩恢复基本原理及其在地球科学特别是边值问题中的应用。作为新的应用实例，论证了Runge定理、Runge-Krarup定理和Keldysh-Lavrentiev定理均是虚拟压缩恢复原理的推论。     

拾振器输入信号恢复方法的研究

为了补偿由于拾振器及其测量系统有限带宽而使测量结果产生的测量误差，本文提出了一种用FIR横向滤波器来恢复拾振器原始输入信号的方法。该方法是将拾振器的输出信号作为FIR横向滤波器的输入，用自适应RLS算法对FIR横向滤波器系数进行辨识而最终获得可以恢复拾振器原始输入信号的反卷积滤波器。通过用几组不同特点的信号对其进行实验检验，结果证明该方法的有效性和较好的泛化能力。     

云南地区强震活跃期与平静期的某些特征

重点研究了20世纪以来云南4次强震活跃期的酝酿及启动过程，发现地壳内构造能量的多年加速积累是形成云南强震活跃期的必要条件，而月球的运行位置及地表涝旱振荡的加剧又进一步调控着活跃期的时间。在此基础上，建立了一套预测云南强震活跃期的定量判据，并应用于对云南地区下一强震活跃期的实际监视中。     

俄罗斯石油开采和长输油气管道的事故分析及对中国的启示

俄罗斯不仅是世界上石油、天然气储量和开采量大国,而且是长输油气管道技术水平较高的国家.以近年来俄罗斯长输油气管道事故统计资料作为切入点,分析了俄罗斯长输油气管道事故的类型及发生的原因,并提出了对中国现役管道管理的建议和将建管道应注意的事项.     

河西走廊干旱荒漠区盐碱化土地修复与调控研究 --以黑河灌区为例

黑河流域地处干旱的甘（甘肃）蒙（内蒙古）西部，是这一带最大、全国第二大内陆水系。黑河水源于祁连山，山区岩石风化后，地表与地下径流携带大量可溶性盐类（主要为NaHCO3、Na2CO3）向黑河灌区汇集，使得该片土地盐分含量不断增加，土壤理、化性质遭到破坏。人类在生产及生活中的不合理活动也加剧了盐碱化的发生。此为盲目毁草开荒，过度放牧、樵柴及采草，导致草原严重退化。特别是草原开荒将地下的盐碱翻至地表，不利于植物生长。植被大量减少又促进地表的蒸发作用，将盐碱带至地表，从而加剧了土壤盐碱化。在自然因素与人为因素的共同作用下，盐碱化土地及碱斑面积不断增加，出现了连片的碱斑和不毛之地。在盐碱化土地的治理与恢复中，应坚持因地制宜及可持续发展的原则，根据盐碱化程度、特征及当地的经济、社会状况，选择切实可行的措施。黑河灌区修复改良盐碱土的可行性措施大致可归纳为4个方面．即农业技术措施、水利工程措施、生物改良措施及化学改良措施。     

加速江苏矿业废弃地环境恢复治理市场化的思考与建议

江苏省域内矿业废弃地分布广泛，对生态环境破坏严重，已影响生态省建设进程及区域经济可持续发展。目前虽已采取了相应措施，并取得引人注目的成效。但与全省矿业开发对生态环境的破坏和生态省建设要求相比仍有差距。文章在全面分析全省露采矿业废弃地环境恢复治理现状及其制约因素的基础上，提出加速矿业废弃地环境恢复治理市场化的对策建议。统一规划矿业废弃地环境的恢复治理、统一协调其规划的实施和管理、实行有偿治理；治理初期采用半市场化运作的与政府联合开发模式、使治理业逐步成熟并走向市场化；加快矿业废弃地环境的恢复治理示范工程建设、建立不同类型的治理模式、促进恢复治理技术规范化；走矿山环境恢复治理产业化的道路、引导治理业由无序向有序转变；加强市场化宣传、吸引外部资金投入；建立健全矿山环境恢复治理的有关政策法规、形成多元化、多渠道的投资机制、规范市场运作机制等措施。     

Advances in the study of lunar opposition effect

1Introduction Thelightscatteredfromthesurfacesofsolarsys temobjectsbearsinformationonthenatureoftheirsur faces,whichcanimproveourknowledgeontheorigin andevolutionofthewholesolarsystem.Theopposition effectreferstothenarrowpeakintheintensityoflight scatteredfromaparticulatemediumdirectlybackin thedirectiontowardthesource,whichalsomeansthe brightnessincreaseswithdecreasingsolarphaseangle (Hapkeetal.,1998).Itisoneofthemajorchallen gesinopticsofplanetarysurfaces.Seeliger(1887) discoveredfirstly…     

Imaging and power generation strategies for chandrayaan-1

The Chandrayaan-1 mission proposes to put a 550 kg lunarcraft into Geostationary Transfer Orbit (GTO) using the Polar Satellite Launch Vehicle (PSLV) which will subsequently be transferred into a 100 km circular lunar polar orbit for imaging purposes. In this paper, we describe certain aspects of mission strategies which will allow optimum power generation and imaging of the lunar surface. The lunar orbit considered is circular and polar and therefore nearly perpendicular to the ecliptic plane. Unlike an Earth orbiting remote sensing satellite, the orbit plane of lunar orbiter is inertially fixed as a consequence of the very small oblateness of the Moon. The Earth rotates around the Sun once a year, resulting in an apparent motion of Sun around this orbit in a year. Two extreme situations can be identified concerning the solar illumination of the lunar orbit, noon/midnight orbit, where the Sun vector is parallel to the spacecraft orbit plane and dawn/dusk orbit, where the Sun vector is perpendicular to the spacecraft orbit plane. This scenario directly affects the solar panel configuration. In case the solar panels are not canted, during the noon/midnight orbit, 100% power is generated, whereas during the dawn/dusk orbit, zero power is generated. Hence for optimum power generation, canting of the panels is essential. Detailed analysis was carried out to fix optimum canting and also determine a strategy to maintain optimum power generation throughout the year. The analysis led to the strategy of 180‡ yaw rotation at noon/midnight orbits and flipping the solar panel by 180‡ at dawn/dusk orbits. This also resulted in the negative pitch face of the lunarcraft to be an anti-sun panel, which is very useful for thermal design, and further to meet cooling requirements of the spectrometers. In principle the Moon’s surface can be imaged in 28 days, because the orbit chosen and the payload swath provide adequate overlap. However, in reality it is not possible to complete the imaging in 28 days due to various mission constraints like maximum duration of imaging allowed keeping in view the SSR sizing and payloads data input rate, time required for downlinking the payload data, data compression requirements and visibility of the lunarcraft for the Bangalore DSN. In each cycle, all the latitudes are swept. Due to the constraints mentioned, only 60‡ latitude arc coverage is possible in each orbit. As Bangalore DSN is the only station, half of the orbits in a day are not available. The longitudinal gaps because of non-visibility are covered in the next cycle by Bangalore DSN. Hence, in the firstprime imaging season, only 25% of the prime imaging zones are covered, and an additional threeprime imaging seasons are required for a full coverage of the Moon in two years. Strategy is also planned to cover X-ray payload coverage considering swath and orbit shift.     

Telerobotic exploration and development of the Moon

There has been a debate for the last thirty years about the relative merits of human versus robotic systems and we argue here that both are essential components for successful lunar exploration and development. We examine the role of robots in the next phases of exploration and human development of the Moon. The historical use of robots and humans in exploration is discussed, including Apollo-era exploration, International Space Station, and deep-water petroleum exploration. The technological challenges of lunar operations are addressed in the context of how robotic systems can be designed for robust and flexible operations. System design recommendations are given based on the lessons learned from terrestrial and space robotics.