女性主义的悲歌:《麦克白》

<麦克白>是莎士比亚四大悲剧中的一部重要作品,其中描写的女性形象被人们长期忽略甚至误解.<麦克白>中所描写的女性是莎士比亚四大悲剧中所受压迫最深的一部作品,这与莎翁当时的社会环境和自身经历密切相关.     

Dynamic Wave Pressures on Deeply Embedded Large Cylindrical Structures due to Random Waves

The response of dynamic wave pressures on structures would be more complicated and bring about new phenomena under the dynamic interaction between soil asnd structure.In order to better understand the response characteristics on deeply embedded large cylindrical structures under random waves,and accordingly to offer valuable findings for engineering ,the authors designed wave flume experiments to investigate comparatively dynamic wave pressures on a single and on continuous cylinders with two different cembedment depths in response to two wave spectra ,The time histories of the water surface elevation and the corresponding dynamic wave pressures exerted on the cylinder were analyzed in the frequency domain,By calculating the transfer function and spectral density for dynamic wave pressures along the height and around the circumference of the cylinder,experimental results of the single cylinder were compared with the theoretical results based on the linear diffraction theory ,and detailed comparisons were also carried out between the single and continuous cylinders ,Some new findings and the corresponding analysis are reported in present paoer,The investigation on continuous cylinders will be used in particular for reference in engineering applications becaus information is scarce on studying such kind of problem both analytically and experimentally.     

High cycle fatigue life prediction and reliability analysis of aeroengine blades

Based on the nonlinear continuum damage model(CDM) developed by Chaboche,a modified model for high cycle fatigue of TC4 alloy was proposed.Unsymmetrical cycle fatigue tests were conducted on rod specimens at room temperature.Then the material parameters needed in the CDM were obtained by the fatigue tests,and the stress distribution of the specimen was calculated by FE method.Compared with the linear damage model(LDM),the damage results and the life prediction of the CDM show a better agreement with the test and they are more precise than the LDM.By applying the CDM developed in this study to the life prediction of aeroengine blades,it is concluded that the root is the most dangerous region of the whole blade and the shortest life is 58 211 cycles.Finally,the Cox proportional hazard model of survival analysis was applied to the analysis of the fatigue reliability.The Cox model takes the covariates into consideration,which include diameter,weight,mean stress and tensile strength.The result shows that the mean stress is the only factor that accelerates the fracture process.     

创设认知冲突 重塑政治课堂

认知冲突理论是美国心理学家费斯廷格提出的。其观点是:一般情况下,人们都有维持自己的观点或信念一致性的需要,以保持心理平衡;如果人们的观念出现了前后不一致,也就是出现了所谓认知上的失调,这时人的心理会出现紊乱或不安,就会力求通过重新组织或改变自己的观点,以达到新的认知平衡。在思想政治课堂教学中,教师有意地设置一些问题情境,     

利用学生校园生活资源,打造高效思想政治课堂

陶行知认为:"没有生活做中心的教育是死教育,没有生活做中心的学校是死学校,没有生活做中心的书本是死书本。"高中思想政治新课程改革强调学科教学与社会生活接轨,在传授知识和训练能力过程中,教师要自然而然地注入生活内容,还要引导学生学会运用所学知识为自己的生活服务。在实施新课程改革和大力实行素质教育的背景下,科技节、艺术节、读书节、体育节等学校校园活动和社团活动蓬勃地开展起来。这些经常发生在学生身边的事情,不仅贴近学生的生活实际,而且符合学生的心理需要,对于打造高效的思想政治课堂具有重要的资源支撑作用。     

对当代学术期刊发展现状及问题的若干思考

新时期学术期刊发展在平衡其学术文化价值和经济价值上还没有找到一个很好的平衡点,在对学术期刊的功能和定位上也还存在着误区,导致学术期刊在发挥自身作用和功能上受到诸多限制。只有树立正确的学术期刊理念和意识,并找到正确的解决方式,改变目前学术期刊内容生产上的机制,才能真正实现学术期刊的知识生产和传播的功能。本文从多角度论述了学术期刊的办刊理念及其重要性,并提出了具体的一些改革方向,期望对这一领域理论与方法的研究提供一些有益的参考和帮助。     

高校校庆活动的文化价值及其实现

随着高校办学的日益开放与社会化,高校校庆活动越来越具有教育性、社会性和文化性的特征,尤其呈现出特有的文化功能,蕴涵着独特的文化价值。高校校庆活动的文化基础在于建构与运作文化符号系统,校庆文化的价值核心是凝练大学精神,打造特色文化,提升核心竞争力。而建立师生相互责任的心理契约,培育师生的学校归属感,是实现高校校庆文化价值的根本诉求,也是积淀大学文化的重要支撑和保证。     

中职数学创新教学模式的探索与实践

“预读、思议、导学、实训、评价”的教学模式是根据中职数学教学特点提出来的。这一教学模式的实施可以培养学生学习兴趣;可以提高学生自学能力;可以提高学生探究与合作学习能力;可以提高学生实际操作和实训、实习能力;还可以通过有效评价体系增强学生自信心。     

提高昆明烟叶收购水平初探

随着我国加入WTO,外国烟草巨头不断深入,以及国内烟草行业的改革,烟草行业出现了前所未有的激烈竞争局面,"重质量,树品牌"提到了空前高的重要位置。生产促进收购,收购指导生产,要加快昆明市烤烟生产的发展,提升昆明烟叶质量,打造昆明烟叶强势品牌,必须提高昆明烟叶收购水平。     

植烟土壤氮素矿化研究进展

土壤氮素矿化是反映土壤供氮能力的重要因素之一,氮素是决定烟草产量和质量的一个关键因素。