注重实效,全面推进现代教育技术应用   总被引：2，自引：0，他引：2  

李泰峰 《现代教育技术》2006,16(2):69-71

该文概述了电子科技大学教育信息化与教育现代化所开展的工作和已经取得的成绩,同时也讨论了传统教育手段与现代教育手段相互关系和互补,以及今后的发展方向等问题。  相似文献   

江苏省农村公共食堂的历史考察     

柳森 《徐州师范大学学报(哲学社会科学版)》2011,37(5):83-90

农村公共食堂是"大跃进"和人民公社化运动中极"左"思潮的产物,是人民公社供给制的载体。从1958年下半年到1961年5月,它在"吃饭不要钱"等天堂般的宣传和政治高压下一哄而起,适应了"组织军事化、行动战斗化、生活集体化"的"大跃进"需要,但很快就出现难以为继而加以调整,由领导人的偏爱和一意孤行而强行恢复,并得以苟延残喘,后又由大兴调查研究等实事求是之风而一哄而散,给农村、农业、农民带来了灾难性的后果。江苏农村公共食堂是全国农村公共食堂的一个缩影,存在着浪费粮食、降低社员生产积极性、浪费劳动力、不利于发展家庭副业、不节省烧柴、不利于团结、生活不便等自身难以克服的缺点,又是当时农村以"共产风"为主要特征的"五风"盛行根源之一,为群众所深恶痛绝。与全国其他省份相比,江苏在"大跃进"中,以江渭清为首的省党政领导很快走向务实,江苏农村公共食堂很快就出现了数量急剧减少、固定食堂少、农忙食堂多、食堂规模小等特点。庐山会议后,江苏公共食堂恢复率低,又以"调整"为名解散了很多食堂,特别是从1961年2月经毛泽东的同意江苏首先在全国解散公共食堂,这也是"大跃进"期间江苏省"非正常死亡"人数较少的原因之一。  相似文献   

Exploring the forward citation patterns of patents based on the evolution of technology fields     

Su Jung Jee  Minji Kwon  Jung Moon Ha  So Young Sohn 《Journal of Informetrics》2019,13(4):100985

Forward citations of patents have been used extensively to capture the impact of technological knowledge. However, our understanding of the factors shaping patent citation patterns remains limited. One of the main limitations is the lack of scholarly attention paid to the dynamic influences arising from the evolution of technology fields. From an evolutionary perspective, technological impact is not simply determined by the static attributes of a technology itself; it is also dynamically affected by changes in the external conditions. Drawing on this viewpoint, this study suggests a model for understanding patent citation patterns by reflecting the evolution of the technology fields to which each patent belongs. Four such factors are explored: technology cycle time, potential of technological convergence, popularity of the technology field, and technological novelty. Based on the proposed model, we show how expected citation patterns can change as a result of different scenarios for technology field evolution. We conduct a case study of patents in the information technology and healthcare industries to show citation patterns of patents across heterogeneous industries as well as those within an industry. Contributions to the innovation literature and research investment decisions are discussed.  相似文献   

信息误导与新中国建立后社会主义道路探索中的决策失误     

廖灵丹 《河北北方学院学报(社会科学版)》2014,(5):71-74

信息是作出决策的前提,虚假信息往往会使领导人作出错误的决策。新中国成立后,社会主义建设探索之所以会发生＂大跃进＂运动与阶级斗争扩大化的错误,与当时中央领导的决策信息失真不无关系。可以说,信息失真是导致＂大跃进＂运动与阶级斗争扩大化错误的重要原因。因此,领导在决策过程中,必须坚持实事求是的原则,完善信息监督系统,健全信息收集渠道,确保信息的真实性。  相似文献   

大跃进运动发生原因探析   总被引：2，自引：0，他引：2  

曹学恩 《陕西师范大学学报(哲学社会科学版)》2003,32(6):105-110

大跃进运动是我国在探索社会主义建设道路中的一次严重失误。这次失误,并非毛泽东的个人问题,还有深层原因,它是在特定的国内国际形势下出现的特殊现象,与大同思想、精神万能思想和国际共运的影响有关;与个人崇拜、浮夸以及急于求成的社会心理密切相关。  相似文献   

基于法律状态与被引信息整合的专利价值评估研究     

桂婕  张兆锋  雷孝平  李鹏 《数字图书馆论坛》2010,(9):26-30

专利价值评估是近年来技术创新管理领域的研究热点,专利被引用次数与专利的法律状态信息是专利价值评估中的两项重要评估指标。文章尝试将这两项指标进行整合分析,通过测度专利的权利维持状态与专利被引用之间的关系,从细致微观的角度来揭示专利价值的变化趋势。文章研究发现,专利的权利维持对专利获得引用有着积极的作用。在进行专利价值评估时,如同时考虑专利权利的维持与专利的被引两项评估指标,可有效提高评估的准确性。  相似文献   

“孟母三移”故事在戏曲中的演绎     

董菲菲 《宁波教育学院学报》2013,15(1):30-32,40

"孟母三移"故事代代相传,耳熟能详,这一故事也被戏剧家作为题材,演绎成各种戏曲作品。从南戏到当代,均有不同类型的"孟母三移"题材剧,现知的有六种。从已掌握的剧本来看,剧本情节越往后越简单,越容易演出,然而它所反映的主题依然很深刻。通过各个时代剧作家不同的改编,将孟母教子的精神通过戏曲这一特殊形式传播开来,不仅歌颂了孟母,而且教育着一代又一代人。  相似文献   

Application of neural network in the study of combustion rate of natural gas/diesel dual fuel engine     

严兆大  周重光  苏石川  刘震涛  王希珍 《浙江大学学报(A卷英文版)》2003,4(2):170-174

In order to predict and improve the performance of natural gas/diesel dual fuel engine (DFE), a combustion rate model based on forward neural network was built to study the combustion process of the DFE. The effect of the operating parameters on combustion rate was also studied by means of this model. The study showed that the predicted results were good agreement with the experimental data. It was proved that the developed combustion rate model could be used to successfully predict and optimize the combustion process of dual fuel engine. Project supported by National Lab. for Automotive Engine and Safety, Tsinghua University, China  相似文献   

划船动力学方程的建立   总被引：3，自引：3，他引：0  

黄胜初  葛新发  何永康  张华杰  冯晓峰  徐菊生 《武汉体育学院学报》1999,(5)

以赛艇动力学方程为基础,与皮、划艇的操桨模型进行比对,综合归纳出完整而统一的划船动力学方程,揭示了在划船操桨过程中人体质心移动产生人体冲力的力学依据,并指出应用该理论的要点,为划船运动学、划船生物力学的发展提供了理论参考。对划船训练科学化、智能化亦将产生深远影响  相似文献   

Mechanical power output in rowing should not be determined from oar forces and oar motion alone     

Mathijs J. Hofmijster  Lotte L. Lintmeijer  Peter J. Beek  A. J. Knoek van Soest 《Journal of sports sciences》2018,36(18):2147-2153

Mechanical power output is a key performance-determining variable in many cyclic sports. In rowing, instantaneous power output is commonly determined as the dot product of handle force moment and oar angular velocity. The aim of this study was to show that this commonly used proxy is theoretically flawed and to provide an indication of the magnitude of the error. To obtain a consistent dataset, simulations were performed using a previously proposed forward dynamical model. Inputs were previously recorded rower kinematics and horizontal oar angle, at 20 and 32 strokes?min^?1. From simulation outputs, true power output and power output according to the common proxy were calculated. The error when using the common proxy was quantified as the difference between the average power output according to the proxy and the true average power output (P?_residual), and as the ratio of this difference to the true average power output (ratio_res./rower). At stroke rate 20, P?_residual was 27.4 W and ratio_res./rower was 0.143; at stroke rate 32, P?_residual was 44.3 W and ratio_res./rower was 0.142. Power output in rowing appears to be underestimated when calculated according to the common proxy. Simulations suggest this error to be at least 10% of the true power output.  相似文献