《共产党宣言》中关于社会主义和共产主义文献的分析与当代意义

在阐明《共产党宣言》中对社会主义和共产主义文献的分析的基础上,着重论述了这种分析的当代意义,使我们再次品味《共产党宣言》的永不磨灭的价值。     

浅谈数学实验与物理教学的关系

本文从数学实验的角度着手，以傅立叶级数和曲线族的包络实验为例，从一个侧面探讨数学教学与物理教学之间的关系。为高校的教学改革提供了新的视角。     

The relationship between field-aligned currents and the auroral electrojets: A review

The recent development of several new observational techniques as well as of advanced computer simulation codes has contributed significantly to our understanding of dynamics of the three-dimensional current system during magnetospheric substorms. This paper attempts to review the main results of the last decade of research in such diverse fields as electric fields and currents in the high-latitude ionosphere and field-aligned currents and their relationship to the large-scale distribution of auroras and auroral precipitation. It also contains discussions on some efforts in synthesizing the vast amount of the observations to construct an empirical model which connects the ionospheric currents with field-aligned currents. While our understanding has been greatly improved during the last decade, there is much that is as yet unsettled. For example, we have reached only a first approximation model of the three-dimensional current system which is not inconsistent with integrated, ground-based and space observations of electric and magnetic fields. We have just begun to unfold the cause of the field-aligned currents both in the magnetosphere and ionosphere. Dynamical behaviour of the magnetosphere-ionosphere coupling relating to substorm variability can be an important topic during the coming years.On leave of absence from Kyoto Sangyo University, Kyoto 603, Japan.     

掌握语言与社会文化的关系,开通社会交往的桥梁

本通过对萨丕尔－－沃尔夫假设的陈述，旨在分析语言与社会化的关系，从而指出正确处理这两的关系可以帮助我们准确地进行社会交往。     

Three-dimensional analysis of relationship between relative orientation and motion modes

Target motion modes have a close relationship with the relative orientation of missile-totarget in three-dimensional highly maneuvering target interception. From the perspective of relationship between the sensor coordinate system and the target body coordinate system, a basic model of sensor is stated and the definition of relative angular velocity between the two coordinate systems is introduced firstly. Then, the three-dimensional analytic expressions of relative angular velocity for different motion modes are derived and simplified by analyzing the influences of target centroid motion, rotation around centroid and relative motion. Finally, the relationships of the relative angular velocity directions and values with motion modes are discussed. Simulation results validate the rationality of the theoretical analysis. It is demonstrated that there are significant differences of the relative orientation in different motion modes which include luxuriant information about motion modes. The conclusions are significant for the research of motion mode identification,maneuver detection, maneuvering target tracking and interception using target signatures.     

GH4169合金晶粒尺寸与持久性能的关联性

以GH4169合金大规格棒材为研究对象,结合棒材的加工过程,利用OM、FE-SEM、EBSD和TEM等手段分析了该合金不同晶粒尺寸试样的持久性能。结果表明:在长时高温应力作用下,不同晶粒尺寸试样呈现不同的持久性能和不同的晶粒取向演变规律。发生变形至断裂的位置,晶粒尺寸较小时,部分〈101〉取向明显转向〈001〉或〈111〉取向,加上宏观变形协调性较好,促使应力集中得到有效释放,表现出较好的塑性;但细晶试样中更多晶界带来的扩散蠕变对高温强度不利,裂纹也容易在与〈111〉硬取向晶粒接邻的晶界处形核并扩展,降低持久寿命;此外,细晶试样的变形程度较大,应变主要集中于晶界处,且大角度取向差的含量较多,这些位置容易萌生裂纹而使寿命降低。     

各国金融危机对策与马克思主义公有制的新发展

金融危机全球拯救行动全面展开,救市的方法却惊人的相似.由于救市之急迫在眉睫,西方各国不得不暂时淡化以往的意识形态之争,把马克思主义公有制的核心理论之一国有化付诸于实践,以解救市之急.金融海啸过后,意识形态之争必将在新的层面拉开,在昔日被视为毒蛇猛兽的共产主义的幽灵变成了普世的菩萨之后,主义之争会更加残酷,共产主义的历程依旧遥远,我们对共产主义的景仰和追求也会因这场经济的血与火的洗礼而升华到一种更高的境界.     

民航安全管理与风险管理的关系

根据国际民航公约附件1、6、8、11、13、14条,以及国际民航组织有关文件要求,安全管理体系作为国家安全纲要(SSP)的组成部分,各缔约国应强制要求已获批准的且在提供服务时面临安全风险的培训组织、航     

航空发动机技术进步与投资强度的定量关系

对航空发动机技术水平提高速度与投资强度这两个概念做了界定.利用有关数据,针对航空涡轮发动机的技术水平提高速度、最大推力、类型(涡喷或涡扇)与投资强度的定量关系建立了的一个数学模型,并对模型的应用进行了探讨.     

对航空发动机研究和发展规律的认识

探讨了世界上航空发达国家航空发动机技术加速发展的态势。分析了甸航空动力技术预先研究的现状及存在问题。加深了对航空发动机发展规律的认识。对如何振兴航空、动力先行,把我国航空发动机搞上去,走自主创新的发展道路提出了建议。     

弹性变形金属的力学化学效应与腐蚀过程相关性的研究

１根据力学，热力学、电化学的原理，就弹性变形对金属热力势和电机电势的影响，从而加速金属腐蚀的问题，进行了详细的理论分析与探讨。