Results 31 to 40 of about 16,108 (208)
Rare Metals, Volume 44, Issue 11, Page 8161-8197, November 2025.Graphical abstract AbstractThe studies on the synthesis of two‐dimensional (2D) Janus materials have made significant progress over the years. They offer new opportunities to increase the potential usage of Janus transition metal dichalcogenide (TMDC) materials in different application areas due to their unique structural, electrical, optical and ...
Ayça Coşkun +9 more
wiley +1 more source
APPLYING EMGUCV IMAGE PROCESSING LIBRARY IN WPF [PDF]
, 2013 以一款游戏软件的设计为背景,重点介绍基于C#语言的EMguCV图像处理库在WPf平台的应用实例。软件需要完成对图像的滤波、特征提取、相似度计算、图形匹配等任务,最终实现对输入图形图像的识别功能。图像处理单元使用EMguCV图形图像处理库,它允许人们在C#语言或者.nET框架中使用OPEnCV图像处理库的功能。A game software design is taken as the background,in the article we introduce the application ...
任超, 冯勇建
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International Journal of Applied Linguistics, Volume 35, Issue 4, Page 2063-2077, November 2025.ABSTRACT Despite the efforts devoted to improving L2 writing pedagogy to promote student writing development, students’ dissatisfactory writing development and outcomes are still reported. Investigating student learning preparedness to navigate L2 writing curriculum transitions may generate new understandings and provide an alternative explanation for ...
Yu Zhou, Shulin Yu
wiley +1 more source
基于Gammatone滤波器组的齿轮系统侧隙诱发冲击特征提取
Jixie chuandong, 2015 齿侧间隙会引发齿间啮合冲击,影响齿轮传动的平稳性和可靠性。为了对故障冲击成分进行提取,提出了基于Gammatone滤波器组的特征提取方法。该方法借鉴听觉系统复杂语音信号识别过程中耳蜗基底膜的信号处理思想,采用与基底膜冲击响应、幅频特性相似的Gammatone滤波器组模型对齿轮系统故障信号进行时频分析,进而提取冲击特征。研究结果表明:Gammatone滤波器组具有对齿轮系统的非平稳瞬变振动信号进行时频分析的功能,该方法能够有效提取由于齿侧间隙引起的啮合冲击故障特征。
高洪波, 李允公, 于良会, 刘杰
doaj +1 more source
Gaoya dianqi, 2015 高压断路器分合闸线圈电流信号特征提取在故障识别、检测及诊断方面都有重要的意义。文中提出采用小波分析与时域求极值点相结合的方法来获取高压断路器分合闸线圈电流信号特征值,并根据该特征值对断路器的故障判别方法做了探索性研究。实验结果表明,电流信号特征值提取方法是有效的,故障识别方法正确。
孙银山 +4 more
doaj
Design and Implementation of Piano Playing Automatic Scoring System Based on BP Algorithm [PDF]
, 2015 随着人们物质生活水平的不断提高，人们对精神生活的质量要求越来越高，钢琴学习也受到越来越多人的追捧。采用计算机技术对钢琴演奏技术进行自动评价，可以减轻钢琴学习负担，提高钢琴学习效果。 钢琴音乐的评价特征因素众多，评价方法模糊。根据钢琴音乐和计算机处理的特点，以及钢琴乐音自动评价的需求，选取短时平均幅度、短时平均过零率和短时平均幅度差三个钢琴乐音特征来对钢琴音乐进行评价。基于BP算法信息处理能力强，不确定性信息处理能力强等特点，采用BP算法来实现对钢琴音乐的自动评价 ...
吴蔚
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Clip Voice: Misogyny and the Renegotiation of a Gendered Vocal Style in Chinese Digital Discourse
Journal of Sociolinguistics, Volume 29, Issue 5, Page 348-359, November 2025.ABSTRACT The participatory culture of social media allows women's voices to be heard but also parodied and policed. On Chinese social media platforms, where performers rapidly adopt and transform vocal trends for engagement, discourse on gendered vocal styles has proliferated.
Zichuan Yu, Rebecca Lurie Starr
wiley +1 more source
Gaoya dianqi, 2014 分析高压断路器机械振动信号和声波信号的特性,针对现有诊断方法的不足,笔者提出了一种基于振声时三维图的高压断路器机械故障诊断方法,并给出了可行的诊断步骤和分析。此方法首先利用分级多时标信号对准的方法构建振声时三维图,然后提取断路器振声时三维图的包络,最后采用基于形状的分级特征向量提取方法构建支持向量机的输入向量进行故障诊断。其中,一级特征提取振声时三维图包络六面八角的特征向量,二级特征提取振声时三维图二维投影的区域弦的分布特征。实验结果表明,该方法诊断高压断路器机械故障能取得良好的效果。
张佩, 周秀萍
doaj
3D reconstruction of train accident scene based on monocular image [PDF]
, 2017 To help with making an emergency rescue plan for train accidents, a rapid 3D reconstruction method of train accident scene based on a monocular image was proposed.
Chang, J. +4 more
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Functional Ecology, Volume 39, Issue 10, Page 2889-2904, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract In the Southwest Australian Biodiversity Hotspot, the greatest plant species diversity tends to occur on the most phosphorus (P)‐impoverished soils. Many plant species in this P‐impoverished environment release root carboxylates that mobilise soil P which is a more ...
Xue Meng Zhou +5 more
wiley +1 more source