深空机动对运载火箭发射火星探测轨道研究

为解决长征(LM)运载火箭发射火星探测器转移轨道时，因低温入轨级最长允许滑行时间及测控限制，有效发射日期窗口亟需拓展的问题，采用主矢量理论结合序列二次规划算法(SQP)，研究了探测器深空机动(DSM)对优化运载火箭发射火星转移轨道的作用。在发射直接转移火星探测轨道算法基础上，重点研究了包含引力影响球(SOI)内近地及近火飞行段后，采用主矢量获取深空机动最优猜测初值的分析算法，通过直接使用探测器近火点目标轨道参数优化运载火箭发射轨道，研究对比不同优化目标及设计约束下深空机动的分析结果，证实深空机动对降低转移轨道总发射能量需求、拓展发射日期窗口的高效性；该算法已应用于工程设计。     

Evaluation of craters formation in hypervelocity impact of debris particles on solid structures

The aim of this work is to develop simplified model of space debris particle collision on solid structures, which would provide closed form solution formulas for determining crater depth, radius and ejected mass being functions of impactor mass, speed and material of both impactor and target. The model will be verified with results of experiments.     

利用“杠杆”搭配解决财务资源过剩的研究——基于稳健财务思想

我国部分上市公司中存在着大量闲置的财务资源，流动性水平居高不下，致使资金效率降低，损害股东利益和公司的可持续发展。从稳健财务思想出发，通过财务杠杆和经营杠杆的适当调整与搭配，理顺上市公司财务资源合理配置路径，为我国上市公司解决财务资源过剩和资本结构优化提供一些有价值的参考。     

Swarm – An Earth Observation Mission investigating Geospace

The Swarm mission was selected as the 5th mission in ESA’s Earth Explorer Programme in 2004. This mission aims at measuring the Earth’s magnetic field with unprecedented accuracy. This will be done by a constellation of three satellites, where two will fly at lower altitude, measuring the gradient of the magnetic field, and one satellite will fly at higher altitude. The measured magnetic field is the sum of many contributions including both magnetic fields and currents in the Earth’s interior and electrical currents in Geospace. In order to separate all these sources electric field and plasma measurements will also be made to complement the primary magnetic field measurements. Together these will allow the deduction of information on a series of solid earth processes responsible for the creation of the fields measured. The completeness of the measurements on each satellite and the constellation aspect, however, implies simultaneous observations of a unique set of important electrodynamical parameters crucial for the understanding of the physical processes in Geospace, which are an important part of the objectives of the International Living With a Star Programme, ILWS. In this paper an overview of the Swarm science objectives, the mission concept, the scientific instrumentation, and the expected contribution to the ILWS programme will be summarized.     

System design of the Hayabusa 2—Asteroid sample return mission to 1999 JU3

The Japan Aerospace Exploration Agency is currently developing the second asteroid sample return mission, designated as Hayabusa 2. Following the successful return of Hayabusa from the asteroid “Itokawa”, Hayabusa 2 is designed as a round-trip mission to the asteroid “1999 JU3”. The 1999 JU3 is a C-type asteroid, which is believed to contain organic matter and hydrated minerals. Thus, it is expected that successful sample collection will provide additional knowledge on the origin and evolution of the planets and, in particular, the origin of water and organic matter. The current mission scenario will enable the spacecraft to reach 1999 JU3 in the middle of 2018 and perform an asteroid proximity operation for 1.5 years. Three touch downs for sampling and one 2-m-class crater generation by means of a high-speed impact operation are planned during the asteroid proximity operation. The samples are to be brought back to the Earth by a re-entry capsule. The present paper describes the system design of Hayabusa 2, some key technical challenges of the mission, and the development status.     

我国人力资源法制化建设的政策分析——基于《劳动合同法》和《就业促进法》视角

我国新制定的《劳动合同法》和《就业促进法》是事关人民群众切身利益、企业规范管理和经济又好又快发展的法律保障。现实生活中经常存在的企业不签劳动合同、滥设试用期、无故拖欠工资、经常加班加点的侵权行为就会得以制止，我国经济与社会法制化、规范化的发展从此进入了新阶段。为此，文章在认真学习和深入研究的基础上，从我国人力资源新法规实施的背景以及新法规的主要内容和实施重点等方面进行了分析和阐述，供有关部门和劳资双方进行参考。     

日本铁矿石资源战略模式对我国的启示

在解析日本铁矿石资源现状的基础上,进一步梳理了日本铁矿石战略模式,将其总结为两个基础（获得海外权益矿、铁矿石战略储备制度）、四个保障（政府支持、法律保障、海运配套及技术支持）和多方互动;并指出对我国铁矿石战略的五大借鉴意义。     

我国的人力资源与经济结构调整

分析了中国的人力资源结构在经济结构调整中的作用，指出人力资源结构若不能随经济结构的变动而变动，将对经济结构的调整产生负面影响，从而制约经济的发展。     

我国人力资源开发现状分析

当前我国人力资源开发状况的主要特点为：人口众多、增长速度较快、农村人口多，文化素质较低；劳动力资源十分丰富，平均受教育程度较低。文章在此基础上分析了其产生的原因，最后提出了改变我国人力资源开发落后状况的若干对策。     

The mitigation, management, and survivability of asteroid/comet impact with Earth

The chances that Earth will collide with a significant near earth object (NEO) within the next century are very small, but such a collision is possible, would be catastrophic, and could happen at any time. Much discussion has been devoted to methods of diverting these objects away from Earth through the use of space technology. However, if these efforts are unsuccessful, we would need to implement effective strategies to survive the event, no matter how cataclysmic. To date, disaster management for various impact scenarios has not been addressed (except in novels and Hollywood films). An impact disaster may be many orders of magnitude greater than any disaster the human species has ever experienced. Initially, technology and experience gained in other large-scale disasters will most likely form the foundation of how these impact events will be managed and classified. Given the size and energy of the projectile, the estimated area of damage, and whether impact effects might be localized or global in nature, we can begin to build basic disaster response scenarios, anticipate public health concerns, and formulate questions in need of answers. Questions we must deal with include: what will be required technologically, sociologically, and medically to survive? What types of evacuation plans and warning systems might be required? Capabilities in need of further investigation include: technological protection strategies related to ‘impact winter’, expanded chemical hazard control methodologies, food storage and production, roles of national governments, and international cooperation. Whatever the magnitude and severity of the event, we must reflect on what we know, what capabilities we can apply, develop or adapt, and seriously investigate what might be done to manage it and survive.