内外结合觅选题 打开编辑学论文写作通道     

霍振响  屈李纯  范军 《编辑学报》2019,31(6):685-688

撰写编辑学论文,是科技期刊青年编辑业务能力提升和个人发展的需要,也是加速个人成长的有效途径。确定选题是撰写论文的必要条件,在凸显编辑主体主观能动性的基础上,从内在和外在因素2个维度对如何发现选题进行探讨,帮助青年编辑尽快打开论文写作通道。其中:内在因素包括困惑破解、经验积累、自我学习、情怀表达等,这是开展研究的“源头活水”,青年编辑据此可以较容易地觅到选题;外在因素则包括新闻热点关注、与同行交流、向前辈学习等,借助这些“他山之石”,青年编辑可拓宽选题思路,对感兴趣的编辑学研究专题进行深耕细作。  相似文献   

陶行知的诗歌理论和诗歌语言实践     

冯军 《毕节学院学报》2011,29(2):14-18

陶行知不仅是伟大的教育家,也是一位高产的诗人。在陶行知现存的近千首诗歌中,寄托着诗人开启民智的伟大理想,蕴藏着丰富的语言材料和语言现象。通过对陶行知诗歌的归纳和分析,明确了陶行知秉持教育性、战斗性、大众性的诗歌创作理论;同时通过大量的语言事实,揭示了陶行知诗歌语言的原生性和艺术性的特质。  相似文献   

鱼腥草水培营养液的筛选   总被引：1，自引：0，他引：1  

许娜  储俊  朱明兰  余琴 《安徽科技学院学报》2011,25(6):44-47

采用水培方式研究了6种常用营养液配方对鱼腥草生长和品质的影响,探讨了鱼腥草水培适宜的营养液配方。结果表明,6种营养液配方对水培鱼腥草生长无显著影响,但对其可溶性糖含量和叶绿素含量有显著影响。水培鱼腥草可溶性糖含量以霍格兰配方最高,较对照增加179．26％;叶绿素含量以霍格兰配方最高,较对照增加56．15％。鱼腥草水培营养液配方以霍格兰配方较为适宜。  相似文献   

Using digital images of the zebra finch song system as a tool to teach organizational effects of steroid hormones: a free downloadable module     

Grisham W  Schottler NA  McCauley LM  Pham AP  Ruiz ML  Fong MC  Cui X 《CBE life sciences education》2011,10(2):222-230

Zebra finch song behavior is sexually dimorphic: males sing and females do not. The neural system underlying this behavior is sexually dimorphic, and this sex difference is easy to quantify. During development, the zebra finch song system can be altered by steroid hormones, specifically estradiol, which actually masculinizes it. Because of the ease of quantification and experimental manipulation, the zebra finch song system has great potential for use in undergraduate labs. Unfortunately, the underlying costs prohibit use of this system in undergraduate labs. Further, the time required to perform a developmental study renders such undertakings unrealistic within a single academic term. We have overcome these barriers by creating digital tools, including an image library of song nuclei from zebra finch brains. Students using this library replicate and extend a published experiment examining the dose of estradiol required to masculinize the female zebra finch brain. We have used this library for several terms, and students not only obtain significant experimental results but also make gains in understanding content, experimental controls, and inferential statistics (analysis of variance and post hoc tests). We have provided free access to these digital tools at the following website: http://mdcune.psych.ucla.edu/modules/birdsong.  相似文献   

Asynchronous quantized control of Markovian switching Lur’e systems with event-triggered strategy     

Wei Kang  Jun Cheng  Xia Zhou  Jinde Cao  Hailing Wang 《Journal of The Franklin Institute》2021,358(3):1984-1998

This work is devoted to investigating the asynchronous quantized control of discrete-time Markovian switching Lur’e systems with an event-triggered mechanism. To model the asynchronous controller and the quantization effects, the hidden Markov model is employed. For reducing the burden of communication bandwidth, an event-triggered mechanism is adopted. By choosing the proper stochastic Lyapunov functional, sufficient conditions are derived. Finally, a practical example is given to illustrate the effectiveness and efficiency of the proposed method.  相似文献   

Networked control for linear systems with forward and backward channels in presence of data transmission delays,consecutive packet dropouts and disordering     

Yanliang Cui  Lanlan Xu 《Journal of The Franklin Institute》2021,358(8):4121-4140

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A novel control Lyapunov-Krasovskii functional methodology for simultaneous stabilization of a set of multiple time-delays nonlinear systems     

A. Dastaviz  T. Binazadeh  Y. Cui 《Journal of The Franklin Institute》2021,358(12):6101-6120

This paper considers the simultaneous stabilization of a set of nonlinear systems, that involve uncertain nonlinearities besides multiple time-varying delays in the states. Under the assumption that the upper bounds of delays are known, a memoryless simultaneously stabilizing state feedback controller is presented by proposing a control Lyapunov-Krasovskii functional (CL-KF) method. As required to establish the CL-KF approach, a systematic procedure is given to construct CL-KFs for the systems under consideration. By the obtained CL-KFs, a common stabilizing state feedback control law is established to drive all the systems to the origin. Examples are finally given to verify the benefit of the proposed design method.  相似文献   

Linear active disturbance rejection control for oscillatory systems with large time-delays     

Yutong Wang  Wen Tan  Wenqing Cui  Wenjie Han  Qixin Guo 《Journal of The Franklin Institute》2021,358(12):6240-6260

Oscillatory systems with time delays exist widely in actual industrial process. This paper discusses the design and tuning of linear active disturbance rejection controller (LADRC) for the oscillatory systems with large time delays. First, internal model controllers (IMC) are designed for the oscillatory systems to compensate the time-delay and cancel the complex poles; then they are implemented with the general LADRC structures and approximated with observer-bandwidth-based LADRCs. Afterwards, the third-order LADRC tuning formulas for oscillatory systems are derived from the IMC controllers. Simulation examples and load frequency control(LFC) in power system with communication delay are used to test the applicability of the proposed tuning formula.  相似文献   

网络教育新时代背景下的开放智慧学习空间设计     

王宏  肖君  谭伟 《北京广播电视大学学报》2018,(3):36-42

本文从网络教育新时代背景出发,采用文献研究的方法,梳理了国内外关于智慧教室和网络学习空间的研究及实践趋势,提出开放智慧学习空间是用于开放远程教育领域的融智慧环境、智慧学习、智慧管理、智慧服务于一体的学习空间,并在此基础上提出了开放智慧学习空间的设计取向、阐述了开放智慧学习空间的设计方法,最后基于对开放教育智慧学习空间的理解及开放智慧学习空间的设计取向和方法,构建了一个开放教育智慧学习中心模型,以助力网络教育的学习环境变革.  相似文献   

教育信息化下成人高校教学模式研究——基于成人学生的调查问卷分析     

陶玉侠  康峻  王酾安 《北京宣武红旗业余大学学报》2018,(1):39-44

教育信息化逐渐被人们熟知,并推动着我国教育改革的不断发展.信息化下,人们的学习方式发生了很大的变革,这必然要求教育教学模式随之改变.成人高等教育是终身教育体系中非常重要的一环,成人高等学校必然是教育信息化中不可或缺的主体.成人高校如何进行教学模式改革不仅需要理论指导,更需要了解信息化下成人的学习需求.为此,我们对信息化下成人学生的学习模式和需求进行调研,在此基础上对教育信息化下成人高校教学模式进行研究,以更好地推进教育信息化下成人高校的教育教学改革.  相似文献