排序方式： 共有9条查询结果，搜索用时 311 毫秒
1
1.
本文通过主持开发高中物理精品课程和物理教学实践,结合笔者的感想体会,从课程意识、课堂提问的有效性、驾驭课堂的能力、课堂教学的艺术性等方面阐述物理精品课程建设对青年教师成长的启示。 相似文献
2.
黄德斌 《中国科教创新导刊》2013,(5):100-100
项目教学法可以改变学生单纯,被动地接受教师知识传输的学习方式,构建开放的学习环节,激发学生主动探究和研究的精神,独立思考与解决问题的能力。在《化工原理》课程中,通过一个实际项目,阐述了项目教学的设计和执行过程。 相似文献
3.
1Introduction Theinvestigationsontheexistenceofthequantum chaoshavebeenconductedforalongtimeandthere havebeenaincreasingnumberofpeopleinterestedin thefield[29].Thedifficultyoftheproblemisthatthere existsthephenomenonofso calledbreakdownofthe correspondentprincipleforthechaoticsystem[5,8].A reasonofthequantumbreakdownofchaosisthatthe classicalchaosgenerallyappearsinsomenonlinear systemsandthecorrespondingquantumSchr¨odinger equationssupplysuchsystemsforus[10].Sincetheex perimentalobservationo… 相似文献
4.
基于《数值分析》课程的主要特点,结合教学实际,列举了几类行之有效的教学改革方法。实践证明,这些方法对提高学生学习兴趣、培养创新能力,有一定的指导作用。 相似文献
5.
分析了新形势下医学院校图书馆的特殊地位和作用，提出了适应新医学模式转变的对策。 相似文献
6.
GAP理论模型在数字资源绩效评价中的应用 总被引：1，自引：1，他引：0
选择湖北民族学院图书馆2008年以来使用三年以上的4个典型全文数据库(CNKI、VIP、SDOS、SDL)作为研究对象,建立SERVQUAL和LibQUAL+TM模型,依据绩效值与下载成本、用户期望、用户感知等相关性,导出绩效值定义与计算公式,并分析其重要影响因子。结果发现,SDOS单篇下载成本是1.86元,是集团单篇下载成本(0.7元)的2.5倍,位居首位。SDL单篇下载成本是0.16元,是集团单篇下载成本(0.10元)的1.5倍,位居第二;专家组的绩效值SDL最高,用户组的绩效值CNKI最高(P<0.05),两者平均,以SDOS为最低(P<0.05)。研究表明,绩效值定义与计算公式经过4个典型全文数据库的验证与应用,理论绩效值与实际绩效值具有一致性和可操作性,具有实际应用价值。 相似文献
7.
In this paper, based on an adaptive chaos synchronization scheme, two methods of encoding-decoding message for secure communication are proposed. With the first method, message is directly added to the chaotic signal with parameter uncertainty. In the second method, multi-parameter modulation is used to simultaneously transmit more than one digital message （i.e., the multichannel digital communication） through just a single signal, which switches among various chaotic attractors that differ only subtly. In theory, such a treatment increases the difficulty for the intruder to directly intercept the information, and meanwhile the implementation cost decreases significantly. In addition, numerical results show the methods are robust against weak noise, which implies their practicability. 相似文献
8.
In this paper, dynamics in the oscillations of the relative atomic population in two periodically driven and weakly coupled Bose-Einstein eondensates (BECs) was qualitatively studied. Using the well-known Melnikov method, the conditions of existence of the periodic and chaotic coherent atomic tunnellings were given in the model. Our results indicate the typical route from bifurcation of the limited circles to chaos, and are in agreement with the previous numerical results. 相似文献
9.
1 Introduction Asweknow ,thedrivenMorseoscillatoristheequationwhichisfrequentlyusedintheoreticalchem istrytodescribethephotodissociationofmolecules .EspeciallytheclassicalMorseoscillatordrivenbyasi nusoidalforcehasbeeninvokedinstudiesofstochasticexcitationanddissociationassociatedwiththeonsetofchaos,andsomeverycommonphenomenaisscienceandengineering ,suchasescapefromapotentialwell,havebeenfound[1 5] .In [1],GogginandMilonniin troducedtheMorseoscillatordrivenbyasinnusolidalfieldintheform x =… 相似文献
1