从李杰到林道静:知识精英的身份尴尬与认同焦虑     

张冀 《华中师范大学学报(人文社会科学版)》2013,52(4)

在现代中国文学史上,知识精英工农大众化既是牵涉知识精英主体重构的文学创作现象,又是事关知识精英思想改造的时代理论命题.从左翼小说革命叙事率先形塑的李杰到十七年文学精心打造的林道静这一系列形象,集中展示了知识精英皈依工农大众的情境方式:面对与生俱来的出身原罪,主动抛弃既有身份,积极获取无产阶级革命主体的思想认同;面对工农大众的政治启蒙,彻底否定自我人格,重新确立对于无产阶级革命力量的从属地位;面对工农大众的示范效应,自觉践行精神自戕或肉体牺牲,从而实现知识精英的工农大众化.这种对知识精英与工农大众精神品格极为大胆的艺术处理,深刻反映了这一历史阶段文学审美规范的独特性质.  相似文献   

张祜《题润州金山寺》若干问题探析     

卢娇 《安庆师范学院学报(社会科学版)》2013,(3):38-41

张祜的《题润州金山寺》是镇江金山寺众多题诗中知名度很高的一首,然对该诗历来褒贬不一。实际上它虽然存在一些瑕疵,但总体上仍超越其它金山寺题诗,不失为"金山绝唱"。  相似文献   

电磁驱动球形机器人转弯特性分析     

桑胜举  沈丁  赵继超  周京伟  安琦 《泰安师专学报》2013,(3):82-87

本文提出一种电磁驱动全方位运动球形机器人驱动原理．采用几何分析的方法,推导出球形机器人低速运动时,转弯半径的表达式;利用分析力学的力平衡、力矩平衡方法,考虑到离心力、陀螺效应等因素的影响,对球形机器人的转弯特性进行了深入的分析,分别建立了球形机器人中速、高速运动时的转弯半径计算方程;通过对比分析,验证了所建立的转弯半径计算公式的正确性．  相似文献   

大学生考试舞弊的动因浅析及其应对措施     

周广林  陈娇 《黑龙江教育学院学报》2013,(11):121-124

考试舞弊违背了公平公正的原则和公民诚实守信的基本道德要求,为社会所不容.从社会环境及观念、教育理念及教学模式、考试方式及学习质量评价体系、教学管理因素、考生的心理因素等方面,分析了大学生考试舞弊的动因,推出了通过抓教风,带学风,促考风;积极推进考试方式和考试内容的改革;重视诚信教育;培养学生正确的考试观等措施,控制舞弊现象的产生,并践行了部分理论,收到了预期的效果.  相似文献   

百万亿次集群系统的设备管理与系统运维     

林皎  徐伟平  张武生  杨广文 《实验技术与管理》2013,30(5):87-90

清华信息科学与技术国家实验室(筹)高性能计算公共平台是清华大学校级公共服务平台之一。建立完备的设备管理方法及高效的系统运维模式是高性能计算平台管理的最基础工作之一。采用自动化与人工管理相结合的方式,建立了完善的设备管理制度保证整个集群设备安全运行;在集群系统运维中,自主开发了集群机自动检测及修复系统,实现了无人值守系统运维模式,保证集群系统的稳定性。目前,设备管理与系统运维系统已经应用于清华"探索100"百万次超级计算系统,为校内外用户提供了稳定、高效的高性能计算环境。  相似文献   

Identification of the activity source of CO2 electroreduction by strategic catalytic site distribution in stable supramolecular structure system     

Sheng-Nan Sun  Ning Li  Jiang Liu  Wen-Xin Ji  Long-Zhang Dong  Yi-Rong Wang  Ya-Qian Lan 《国家科学评论(英文版)》2021,8(3)

Identification of the real catalytic site in CO₂ reduction reaction (CO₂RR) is critical for the rational design of catalysts and the understanding of reactive mechanisms. In this study, the catalytic activity of pyridine-containing materials was for the first time structurally demonstrated in CO₂RR by crystalline supramolecular coordination compounds model system. The system consists of three stable supramolecular coordination compounds (Ni-TPYP, Ni-TPYP-1 and Ni-TPP) with different numbers (4, 2 and 0) of active pyridine groups (i.e. uncoordinated pyridine nitrogen atoms). The electrocatalytic test results show that with the decrease of the number of active pyridine groups, the CO₂RR performance is gradually reduced, mainly showing the reduction of highest FE_CO (99.8%, 83.7% and 25.6%, respectively). The crystallographic, experimental and theoretical evidences prove that the CO₂RR activity is more likely derived from uncoordinated pyridine nitrogen than the electrocatalytic inert metal nickel in porphyrin center. This work serves as an important case study for the identification of electrocatalytic activity of pyridine-containing materials in CO₂RR by simple supramolecular model system.  相似文献   

Estimation Methods for One‐Parameter Testlet Models     

Hong Jiao  Shudong Wang  Wei He 《Journal of Educational Measurement》2013,50(2):186-203

This study demonstrated the equivalence between the Rasch testlet model and the three‐level one‐parameter testlet model and explored the Markov Chain Monte Carlo (MCMC) method for model parameter estimation in WINBUGS. The estimation accuracy from the MCMC method was compared with those from the marginalized maximum likelihood estimation (MMLE) with the expectation‐maximization algorithm in ConQuest and the sixth‐order Laplace approximation estimation in HLM6. The results indicated that the estimation methods had significant effects on the bias of the testlet variance and ability variance estimation, the random error in the ability parameter estimation, and the bias in the item difficulty parameter estimation. The Laplace method best recovered the testlet variance while the MMLE best recovered the ability variance. The Laplace method resulted in the smallest random error in the ability parameter estimation while the MCMC method produced the smallest bias in item parameter estimates. Analyses of three real tests generally supported the findings from the simulation and indicated that the estimates for item difficulty and ability parameters were highly correlated across estimation methods.  相似文献   

Decreased Self-Reported Cognitive Failures after Memory Training     

Marek Preiss  Jiří Lukavský  Dana Steinová 《Educational gerontology》2013,39(9):798-808

In recent years, attention has been focused on investigating the effectiveness of composite memory intervention programs with different age and diagnostics groups. The goal of this study was to measure changes in cognitive lapses by Cognitive Failure Questionnaire (CFQ) in a large trained, dementia free group (Mini-Mental State Examination [MMSE] > 26). The CFQ was administrated to older adults before training (Wave 1), after training (Wave 2), and in a six-month follow-up (Wave 3) to an experimental (N = 77; memory training) and control sample (N = 78, no intervention). Significant changes in subjective cognitive functioning in the experimental group and a plateau curve in the control group were observed. The results indicate support for the efficiency of a large memory-training group in promoting subjective cognitive functioning.  相似文献   

模拟智能BIT测试微处理机系统板   总被引：1，自引：0，他引：1  

姬建新 《科技广场》2008,(5)

机内测试技术(Built-inTest,简称BIT)是一种能显著改善装备或系统测试性与诊断能力的重要技术手段。智能机内测试模拟系统是运用智能BIT技术的理论,开发出的一个对硬件设备在线测试的模拟系统。它是在Windows操作系统下,利用嵌入式C语言开发出来的,嵌入式C语言现广泛应用于各种硬件测试及开发环境中。智能机内测试模拟系统在对智能的模拟方面运用数组、随机函数等方法来实现,从而体现出智能机内测试的特点。本文描述了系统中对微处理机系统板部分的测试过程。  相似文献   

CBA绿色看台文化建设的目标体系及对策研究     

吉玉良  赵克宁  杨明 《吉林体育学院学报》2008,24(5):26-27

运用文献资料法对CBA看台文化做了系统的研究。在界定CBA看台文化概念的基础上,论述了CBA绿色看台文化建设的现状,然后提出CBA绿色看台文化建设的目标体系及对策,为CBA绿色看台文化建设提出一定理论依据。  相似文献