Results 131 to 140 of about 105,295 (257)
, 2017 本发明提供了一种提高Y基烧结磁体磁性能的方法。该方法将包含Pr或-和Nd元素的待扩散合金粉末与有机溶剂均匀混合，得到待扩散合金液；将待扩散合金液附着在Y基烧结磁体表面，然后置于真空烧结炉中进行晶界扩散热处理，使Pr或-和Nd元素扩散进入Y基烧结磁体的主相晶粒表层，最后进行回火处理，增强了主相晶粒表层处的磁晶各向异性场，阻止反磁化过程中晶粒表层处的反转形核，提高了Y基烧结磁体的剩磁、最大磁能积以及矫顽力等磁性能 ...
丁广飞 +6 more
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Learning Styles, Engagement and Anxiety in AI‐Mediated Writing: A Multimodal Feedback Study
International Journal of Applied Linguistics, EarlyView.ABSTRACT Artificial intelligence (AI) tools now permeate English academic writing. However, evidence on how feedback modalities align with student differences and with psychological mechanisms remains limited. Prior work often reduced learning styles to simple matches with delivery modes and treated learning engagement and writing anxiety as peripheral.
Yi Ren +3 more
wiley +1 more source
Dianci bileiqi, 2006 测试了添加两种不同粘度增塑剂对坯料泥浆性能、吸湿性能及其它性能的影响,结果表明,在相对湿度较低的条件下,高粘度增塑剂（干料0.8%的含量）的加入对坯料的吸湿性能有影响;在相对湿度较高的条件下,高、低粘度增塑剂（干料0.8%的含量）的加入对坯料的吸湿性能均有影响,且高粘度增塑剂的影响较明显。两种增塑剂对坯料其它性能的影响基本相同。建议增塑剂的加入量应结合坯料中粘土的可塑性能而定,当坯料中粘土的可塑性能满足生产工艺条件时,可以适当减少增塑剂的加入量。
杨娟
doaj
, 2002 针对原型S~2I开关电流存储单元性能上的一些弱点，提出了共源-共栅组态的S~2I电流存储单元（简称CS~2I）新结构，使其关键速度与精度性能得到较好的改善。相同器件尺寸下的CS~2I单元电路相比，后者速度性能提高了1.6倍 ...
李拥平, 石寅
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT This computational linguistic study analyzes 8743 Rednote posts to examine how sentiment, emotion, and content domain collectively shape social comparison dynamics on social media. We identify four key findings: (1) an emotional gradient, where upward comparison content exhibits the highest sentiment scores and downward comparison the lowest; (
Michelle Mingyue Gu +7 more
wiley +1 more source
Dianci bileiqi, 1995 硅灰石应用在高压电瓷配方中，可降低烧成温度、缩短烧成时间、减少烧成收缩、提高介电性能和绝缘性能。研究提出的配方具有良好的制造工艺性能和机、电、热性能，用于研制ＺＬ─１０／４００户内联合胶装支柱绝缘子，其主要性能达到或接近国内外同类产品水平。
金世浩, 李学权, 李一哲
doaj
, 2003 对并联式后弯管波力发电浮体模型的波能转换性能和锚泊力进行了试验研究。结果表明并联式后弯管浮体模型的最佳响应周期基本不变，各单元浮体性能略有差异，位于中间的单元浮体性能略低于两侧的浮体，波能转换性能随浮体数量增加而下降，多点系泊使并联式后弯管装置效率提高。并联式后弯管波力发电装置采用标准化单元设计，灵活组成不同装机容量的装置，将大大降低锚泊系统 ...
孙培亚, 梁贤光
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT Generative artificial intelligence (GenAI) has emerged as a powerful tool in the Informal Digital Learning of English (IDLE) environment, offering personalized, interactive, and innovative language learning experiences that may enhance learning engagement.
Jin Liu, Meilu Liu, Yuan Yao, Dechao Li
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2018 基于纤维单元和单轴材料本构的多段梁法在钢管结构的滞回性能模拟中得到了广泛应用。利用OpenSees程序和多段梁法,以现有的3个圆钢管轴向加载滞回性能试验为基准,对以下4种常用的单轴材料本构对圆钢管轴向滞回性能模拟的影响进行了研究:不考虑弹塑性过渡段的随动硬化模型、考虑弹塑性过渡段的随动硬化模型、不考虑弹塑性过渡段的混合硬化模型和考虑弹塑性过渡段的混合硬化模型。分别对3个圆钢管的轴向荷载-轴向位移滞回性能进行了试验和数值模拟的对比分析,研究表明 ...
杨大彬 +3 more
doaj
Synthesizing Empirical Research on Learner Metacognition in Second Language Writing
International Journal of Applied Linguistics, EarlyView.ABSTRACT Despite considerable research interest in learner metacognition in second language (L2) writing, there is not yet a review that synthesizes the existing empirical findings and discusses their implications. To fill the void, this systematic review synthesized 39 empirical studies on learner metacognition in L2 writing and examined their salient
Chen Li, Icy Lee, Zhicheng Mao
wiley +1 more source