共查询到20条相似文献，搜索用时 178 毫秒
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提出了一种判断反馈放大器组态的方法和步骤。依此可以直观而准确地判断出反馈放大器的组态。同时，还可以在此基础上进一步定性分析负反馈对放大器性能的影响。 相似文献
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在电子技术中,几乎所有实用的放大器都离不开负反馈。反馈的判断在模拟电路中,已成为重要学习内容之一。笔者发现许多教材中对此判断方法表述篇幅过多、系统性不强。为此,本文归纳了有关反馈的各种判断方法,使之更简便,易于学生掌握。 相似文献
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从不同角度阐述了用瞬间极性法判别反馈放大器反馈的极性及其规律，归纳了最快捷捷的口诀、巧记方法，提高了教学效果。 相似文献
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傅祖清 《湖南城市学院学报》1994,(5)
方框图法是全面定量计算负反馈放大器性能参数的主要方法。本文结合四种典型反馈电路，运用人们所熟悉的网孔法推导反馈放大器的基本放大电路，是学习反馈电路的另一途径。 相似文献
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David Carless 《Assessment & Evaluation in Higher Education》2019,44(5):705-714
A key challenge for feedback practice involves promoting student uptake through the closing of feedback loops. This paper investigates feedback loops by using the concepts of single and double-loop learning to interrogate student responses to feedback. Single-loop learning tackles an identified problem or task, whereas double-loop learning additionally re-evaluates how the problem or task is approached. Evidence from a five-year longitudinal enquiry into four undergraduate students’ experiences of feedback is used to analyse feedback loops. Students reported a variety of experiences: failing to engage significantly with end-of-semester comments; short-term uptake within modules which had two assignments; and longer-term efforts at improving their learning strategies. A model of long-term student engagement with feedback is proposed, including single-loop feedback processes, double-loop feedback processes and unresolved learning puzzles. Whereas feedback loops are mainly focused on the shorter-term, it is suggested that feedback spirals represent an alternative way of analysing complex, iterative longer-term learning processes. Implications for practice focus on student self-regulation and the development of student feedback literacy. 相似文献
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通过对体育专业体育系学生田径运动技术教学课进行长达两年的对比教学实验研究发现:在技术动作初学阶段,即刻反馈的反馈效能优于延迟反馈;在技术动作熟练阶段,适当的延迟反馈其反馈效能优于即刻反馈;在技术动作初学阶段,教师提供即刻反馈,技术动作熟练后,提供适当的延迟反馈,这种反馈时机模式的反馈效能优于单纯的即刻反馈或延迟反馈. 相似文献
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卢杨 《合肥教育学院学报》2013,(3):42-44,119
翻译是一种跨语际跨文化的信息传播。将翻译纳入传播学的框架,借鉴传播学中受众研究的理论探讨翻译传播过程中的受体反馈,能丰富翻译受体研究的内涵,拓展翻译研究的内容。对翻译受体反馈的实质、分类、作用以及反馈渠道进行分析,旨在在翻译研究中建立翻译受体的反馈机制。 相似文献
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Ashley Waggoner Denton 《College Teaching》2018,66(1):22-23
This article presents some simple strategies that instructors can use to improve the quality of the feedback students provide each other during a peer review activity. Briefly, I recommend that emphasis be placed solely on the provision of constructive comments, and that in order to qualify as constructive, a comment must: (1) identify a specific problem, (2) explain why it is a problem, and (3) provide a concrete solution for the problem. 相似文献
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Feedback plays a central role in writing development. However correcting students' writing is one of the most timeconsuming tasks for our senior English teachers. By conducting a survey of direct feedback and indirect feedback in students writing the author tries to test the influence of direct feedback and indirect feedback in graduates' writing. 相似文献
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Feedback plays a central role in writing development. However correcting students’writing is one of the most time-consuming tasks for our senior English teachers. By conducting a survey of direct feedb... 相似文献
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