射击与通信实践环节的综合训练

以院实施射击、通信课改革为出发点,针对改革实施的必要性、指导思想、改革的内容、改革的措施等几个问题进行了具体论述。为下一步改革提供几点借鉴,促进改革的顺利实施。     

频率捷变雷达干扰方法分析

频率捷变雷达有许多其它雷达无法比拟的优点,在现代雷达体制中占有重要地位。分析了频率捷变雷达的特点,根据其工作原理,提出了干扰频率捷变雷达的几种方法,分析了各自的优点和局限性。阐述了干扰方法的原理及实现的技术途径,并给出了有关参数的计算方法和实例。     

Unsolved murders and the investigative failures of the Nigerian police force: Security and sociopolitical implications

This article focuses on the systemic failures of the Nigerian police force to unravel the mysteries surrounding homicides in the country, along with the security, social and political implications of the ongoing trend. The article draws on documented pieces of evidence of high-profile murders, along with the causes of the upsurge in murder incidences and the inhibitive factors relating to the investigative procedures of the police. The suitability of the theory of subaltern realism and the concept of third-world security predicaments in explaining the peculiarities of Nigeria’s internal security challenges is examined, along with the problems of the legitimacy of political regimes and weak borders. There is a need for the National Assembly of Nigeria to exercise its constituted powers in reawakening and supervising investigations into dormant cases of murder through its committees on police affairs, public safety and national security. The police should check its organisational failures, which may be related to using the wrong investigative approaches, low levels of information, limited resources, corrupt practices, and pressure to obtain quick results.     

Insurgent courts in civil wars: the three pathways of (trans)formation in today’s Syria (2012–2017)

As part of research on the meso-foundations of conflict, the field of ‘rebel governance’ examines political institutions that regulate the affairs of civilians in wartime as well as their relations with armed actors. Judicial institutions play an important role in this and research has shown that they are widespread among both historical and current insurgencies. However, usually these bodies have been analysed in the context of one hegemonic faction like the Tamil Tigers in Sri Lanka and the Afghan Taliban. What is missing so far is an analysis of different pathways of (trans)formation of rebel courts. As exemplified by the three case studies of judicial institutions in Eastern Ghouta, Idlib and Aleppo, these are shaped by the distribution of power between ‘same-side’ groups, yielding unipolar, bipolar, or multipolar constellations. The analysis is located on the meso or movement level of insurgent social structures, complementing research on the micro and macro levels.     

Study on performance degradation and failure analysis of machine gun barrel

An increase in the use of the gun barrel will cause wear of the inner wall, which reduces the muzzle velocity and the spin rate of the projectile. The off-bore flight attitude and trajectory of the projectile also change, affecting the shooting power and the accuracy. Exterior ballistic data of a high-speed spinning projectile are required to study the performance change. Therefore, based on the barrel's accelerated life test, the whole process of projectile shooting is reproduced using numerical simulation technology, and key information on the ballistic performance change at each shooting stage are acquired. Studies have shown that in the later stages of barrel shooting, the accuracy of shooting has not decreased significantly. However, it is found that the angle of attack of the projectile increases as the wear of the barrel increases. The maximum angle of attack reaches 0.106 rad when the number of shots reaches 4300. Meanwhile, elliptical bullet hole has appeared on the target at this shooting stage. Through combining external ballistic theory with simulation results, the primary reason of this phenomenon is found to be a significant decrease in the muzzle spin rate of the projectile. At the end of the barrel life, the projectile muzzle spin rate is 57.5% lower than that of a barrel without wear.     

军内行政执法主体研究

军内行政执法主体是指依法享有军内行政执法权的组织。但是,在理论上如何界定军内行政执法主体的范围？军内行政执法主体之间的相互关系如何界定？军内行政执法主体之间的职权在宏观上如何划分？这便是本文所要探讨的问题。     

开放化学实验教学

开放化学实验教学是在原有化学实验教学体系基础上提出的新的化学实验教学模式,是化学实验教学改革的必然趋势。开放化学实验教学在实验内容的确定、实验方案的设计、实验步骤的实施、实验结果的分析与总结方面有着自己的特点。实践经验表明,开放化学实验教学对培养学生创新能力、提高学生综合素质具有重要作用。     

新时期高校师德建设面临的问题与对策

高等教育发展对师德建设提出的新要求,应采取适当措施探讨高校师德建设的新路径和方法。     

禅宗思想对诗教审美文化的突破与超越

我国古代禅宗思想巧妙地实现了中国本土的儒道思想和西土印度的佛教思想的完美结合,同时也对我国古代语文教育产生了极大的影响。禅宗是真正中国化的佛教,它在审美主体意识、审美心理历程、审美修养途径、审美境界等方面突破与超越了我国古代的诗教审美文化,为我国当前的语文教育提供了有益的思考和启示。     

谈对民俗的认识

在历史的积淀中,各族人民创造了丰富多彩的民俗文化,这种独特的文化又对人们产生了深远的影响。笔者在学习了民俗学理论的基础上,对民俗有了一些粗浅的认识,即民俗是历史积淀的产物,它具有浓郁的地域特色。体现出民族和信仰的多样性,是通过文化进行记录和传承并不断变化和发展的一种社会现象。