关于《消防法》实施以来的几点思考

2009年《消防法》实施以来,消防工作得到了长足的发展,但也反映出一定的问题。分析了《消防法》实施几年来在执法主体力量、概念界定、法律术语等方面中存在的问题,认为应通过合理考虑执法力量状况、理性看待法律条文本身、主动形成执法合作意识等措施,更好地发挥《消防法》在消防监督管理中的重要作用。     

浅谈法治边检建设

＂法治边检＂建设是在党的十八届三中全会提出建设＂法治中国＂目标时代背景下,在提高边检服务水平工作进入深水区、社会各界对边检工作要求日趋严格和多样化形势下,边检机关立足工作实际,顺应时代发展的必然选择。分析＂法治边检＂的理论内涵和面临形势,总结法治边检建设现状和存在问题,从构建体系型边检、有限型边检、效能型边检、责任型边检、服务型边检、信用型边检、开放型边检、廉洁型边检等方面对法治边检体系建设进行了探讨。     

The legality of unmanned aerial vehicles outside the combat zone: a case study of the Federally Administered Tribal Areas of Pakistan

The drone is the latest tool to promote interests of a nation-state. It is clear that USA as well as other major powers anticipate that robotics will play a key role in future warfare. Today, more than 70 countries have already acquired drone technology and many others are desperate to join the ranks. This urge for drone technology will ultimately lead to a “boundless and borderless war without end.” In the case of Pakistan, the US drone campaign has raised some important issues regarding how their use could, or should, be regulated in the future. This article analyses the legal issues raised by the US's use of drone technology in non-combat zones, such as Pakistan. It is argued that a reckless disrespect of Pakistan's sovereignty has had adverse implications and consequences for the legitimacy of the Pakistani government. Drone strikes have prompted instinctive opposition among the Pakistani population, hurt their feelings and estranged them from the government. This in turn has added to Pakistan's instability and stimulated a ground-swell of animosity toward the USA.     

BTT导弹制导律研究综述

与STT导弹相比,BTT导弹在气动效率、机动能力、控制性能等方面具有明显优势,但其运动耦合特性也给传统研究框架下的制导律设计带来了挑战。本文针对BTT导弹制导律设计问题展开研究,首先描述了BTT导弹制导基本问题,分析了BTT导弹制导律设计的技术难点,需要综合考虑运动耦合、多约束、目标机动、弹体动态效应等因素,然后综述了国内外现代制导律设计的基本方法,将其分为双通道解耦法、球坐标法、现代几何法等,最后指出了BTT导弹制导律的进一步研究方向。     

AFRICAN REGIONAL ORGANISATION' PEACE OPERATIONS

This paper reviews recent developments among African regional organisations in undertaking peacekeeping operations, as well as in preparing for future missions. It focuses on those that have been the most active: the Organisation of African Unity/African Union, the Economic Community of West African States and the Southern African Development Community. The paper goes on to briefly describe and analyse the activities of the French, UK, and US capacity-building programmes designed to develop African peacekeeping capacities. The author then identifies some specific concerns and recommends actions to help meet today's challenges. The paper concludes with a short analysis of African organisations' capacities and proclivities to provide a peacekeeping force for Sudan.     

载人飞船上升段轨道的Newton迭代设计法

本文对载人飞船上升段轨道的一种工程设计方法进行了探讨。该方法的特点是根据上升段飞行的特征,运用飞行力学原理选定其控制规律的数学模型,然后根据上升段轨道的中间约束条件和终端约束条件,利用Newton迭代法确定模型中的各待定参数。本文给出了该设计方法的流程图,并通过模拟计算论证了该设计方法的可行性。     

再入机动弹头的速度控制

本文详细地讨论了再入机动弹头的速度控制问题。根据优化原理找到了对固定目标进行攻击的最优制导规律,讨论了理想速度曲线的设计方法,以及具体实施减速控制的方法。仿真计算表明,对落速控制的精度是较高的。     

基于热力学第二定律的直喷式柴油机性能分析

这项研究的目的是发展用热力学第二定律分析柴油机在不同运行工况性能的能力.研究是针对一台12150L型柴油机进行的,以发动机气缸内部压缩、燃烧、膨胀、瞬时传热和换气过程的理论模拟模型为基础,应用热力学第二定律分析,度量各种能量品质的优劣和不可逆损失值,并且与热力学第一定律的能量平衡进行了比较.分别改变循环喷油量、燃烧开始角、燃烧持续期及燃烧品质指数.研究了参数变化对缸内可用能和热力学第一定律效率和第二定律效率的影响.     

飞行器栅格翼三维复杂流场的气动力计算

为了计算作用在飞行器和栅格翼上的气动力,采用时间相关法数值求解完全气体的三维Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程,并运用通量守恒的分区计算方法,将复杂的飞行器和栅格翼系统分解成八个既相对独立,又相互关联的计算区域,得到了满意的结果。