胶印机离合压机构示教装置的电气控制设计     

张明长 《实验技术与管理》2007,24(8):55-58

研制了胶印机示教装置，简单阐述了该示教装置开发的主要特点及基本要求，并且对该示教装置离合压系统电气控制设计作了详细的分析介绍。胶印机示教装置在低速运行时，演示现象明显。  相似文献   

根据柔度判断压杆失稳的误区分析     

周梅芳  金向平  傅美贞 《金华职业技术学院学报》2005,5(1):25-26,45

国内很多教科书上都有“压杆的柔度越大，越容易失稳”这一结论，本文通过例子证明这一结论的不正确性，并得出了正确结论。  相似文献   

西方舆论监督法的原则探析与借鉴     

唐光怀 《广西师范大学学报(哲学社会科学版)》2007,43(2):123-126

新闻自由、信息公开、权利义务一致性、特许权原则,是国外舆论监督法的主要原则,探究与分析其经验教训,将为中国特色社会主义舆论监督立法提供重要的启示。  相似文献   

研究生压力认知对心理健康的影响   总被引：4，自引：0，他引：4  

姜松梅  傅安洲 《扬州大学学报(高教研究版)》2006,10(5):14-16

目前研究生的压力主要有学业压力、就业压力、经济压力、角色以及生活方式压力等;对压力不合理的认知是产生心理问题的根源,这又主要是由于极端思维和情绪化推理,因此建立正确压力认知模式可以提高心理健康水平。  相似文献   

由价格战看我省报业的同质化竞争及对策     

梁杰 《江西师范大学学报(哲学社会科学版)》2004,37(1):125-126

近几年，我省报业呈现出持续快速发展的良好态势。但是，随着报业改革的深化和报业竞争的日趋激烈，报纸同质化的问题日益突出，不仅造成资源和成本上的浪费，而且易引发无序竞争，影响到我省报业的进一步持续健康发展。针对此，应从调整报纸定位、规范报业市场秩序、加强宏观调控、优化报业结构等方面入手。促进我省报业的繁荣和健康发展。  相似文献   

关于同调代数中几个问题的注记     

殷志云 《湖南城市学院学报》2001,18(3):14-15

阐述了态射广义逆及其模的性质，给出了几个猜想，分析了投射模、平坦模、内射模的相互关系.  相似文献   

Now You See Me – Now You Don't: Journalists’ Experiences With Surveillance     

Anthony Mills 《Journalism Practice》2019,13(6):690-707

If democracy is a platform for many voices, and the voices of the many, journalists serve democracy by bringing these voices to the forefront of governance by asking difficult questions to those in power. It can be argued that journalists engage in the broader form of surveillance of power from below, or sousveillance [Mann, Steve, and Joseph Ferenbok. 2013. “New media and the power politics of sousveillance in a surveillance-dominated world.” Surveillance and Society 11 (1-2): 18–34.], which aims towards a form of relative equilibrium. In democracies, the institutional system of checks and balances forms the basis on which journalism pursues its watchdog function. This paper explores the experiences of journalists with surveillance and their impact on journalists’ sense of freedom to fulfil their watchdog role. The paper contributes to increasing research interest in “journalism after Snowden” by addressing the intangible conditions under which journalists may or should work, and ultimately also how widely accepted standards of democratic liberties are challenged.  相似文献   

国产300MW汽轮机汽封改造     

全浩荣 《中国科技信息》2007,(12):68-69

本文简要地分析了汽封弧段卡涩的问题,介绍了某厂300MW汽轮机组汽封改造的几点措施,从一个侧面对提高老机组的可靠性和经济性作了有益的探索。  相似文献   

Perspectives on the right to publish: Globalinequalities, digital publications, and thelegacy of revolutionary France     

William Wresch 《Ethics and Information Technology》2003,5(2):117-127

By 1789 the French Enlightenment had alreadyestablished that the rights of citizensincluded the right to speak, write, and printfreely. This right has since been enshrined invarious national and international documents,but remains elusive in much of the world. Oneway to consider these freedoms is to look notjust across the world comparing nations thathave or don't have freedom, but back throughtime at the first effort to promulgate thesenew rights – the French Revolution. When theFrench Revolution created freedom of the pressin 1789, the French book publishing industrywas noted for five attributes: completecensorship of all publications, a rigidlyenforced printing monopoly, copyrightprotection for all authors, fossilized content,and the proliferation of illegal presses. Digital technology is enabling a second dawn ofpress freedoms, but the five problems found inFrance two centuries ago can still be seen invarious forms, especially in the massivemonopoly of book publishing by a few countries. The answers created by France in 1810 present apartial basis for how current governments couldrespond to contemporary problems with freedomof the press. Rightly used, new digitaltechnology also has an opportunity to finallyfacilitate one of civilization's fundamentalfreedoms.  相似文献   

1957-1966:报刊民族主义话语的褊狭性     

田中阳 《湖南大众传媒职业技术学院学报》2007,7(5):5-9

首先,只说西方发达国家的"坏",只说自己的"好",说"坏"说得一无是处,黑暗无比,说"好"说得无一不是,无一瑕疵;其次,"居天下之中心"的思想,都是1957-1966年我国报刊话语的重要的言说内容;按照阶级斗争的观点来阐释民族问题,认为"民族问题的实质是阶级问题",则是此一时期报刊话语关于民族问题的一个基本理论观点。  相似文献