基于OWA算子的军队院校物资采购招投标管理研究

针对军队院校物资采购招投标管理问题,文中分析了军队院校物资采购招投标的特点,研究了基于合同的谈判机制;针对评标过程中,其所评指标中存在定量指标和定性指标的特点,提出一种基于OWA算子和语言OWA算子的综合多属性群决策方法,实现了招投标管理中的评标、定标。最后,通过实例说明了该方法的有效性及合理性。     

防毒面具罩体材料发展现状

简要介绍了防毒面具罩体材料的发展历史及国内外具有代表性的先进面具罩体材料的使用情况,并指出了罩体材料通常的性能要求和我军现有面具罩体材料存在的主要问题。通过对几种常用罩体材料的性能比较,介绍了综合性能更好的丁基类橡胶和硅橡胶材料．最后,就罩体方面应努力的方向进行了简要总结。     

A drive to regime change through nonviolent economic warfare: The post-Mugabe era, 2017–2019

ABSTRACT

This article examines efforts made by the Movement for Democratic Change Alliance to bring about regime change through nonviolent economic warfare including its subsequent failure. The 30 July 2018 harmonised elections in Zimbabwe led to a victory by Emmerson Mnangagwa but it was disputed by Nelson Chamisa. Since August 2018, the political opposition led by Chamisa sought to make the country ungovernable by waging a nonviolent economic war nicknamed Kuzvidira jecha (pouring sand) against the Mnangagwa administration. This was punctuated by price hikes, fluctuation of the local currency, artificial food stuff price hikes and fuel shortages which caused serious challenges for most Zimbabweans. This was primarily intended to bring about regime change via public unrest against the Mnangagwa regime. On the contrary, the anticipated public uproar failed to foster regime change in Zimbabwe despite widespread adverse socio-economic effects. This led to the nonviolent participants resorting to violent tactics instead of adhering to nonviolence. Consequently, it was the failure to adhere to nonviolent principles by opposition advocates which forced the Mnangagwa regime to deploy its own instruments of violence in an effort to protect lives and property.