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关键词： 环卫设备   智能管理   动态监测   预防维护   协同调度  

摘要： 面对城市环境治理要求提升与环卫管理模式转型的双重挑战,本研究通过构建智能管理系统解决传统作业效率不足问题,采用电子副本技术建立设备模型消除人工巡查盲区,结合移动终端与定位装置形成全流程监测网络并实现数据互联互通,其智能分派系统通过动态算法优化作业路线,预警模块基于数据分析识别设备异常,试点应用表明系统能够提升作业响应速度、降低设备故障率并提高群众满意度,同时促进管理流程规范化发展,为环卫管理现代化提供可操作方案。

关键词： VR一体机   尺寸检测   定位装置   柔性夹持  

摘要： 针对虚拟现实(Virtual Reality,VR)一体机外壳的尺寸检测中定位不准和夹持变形的问题,对VR一体机外壳的结构、注塑工艺和传统夹具存在的问题进行分析,设计了一套内外夹持、压力传感器反馈控制和柔性支撑的结构尺寸定位检测装置,实现了稳定可靠的高精度与低变形的定位,研究结果中可以看出本文尺寸检测装置能有效提高尺寸检测的一致性和准确性,满足多类型塑料外壳的工业检测需求。

关键词： functional articulation disorder   intelligence   intelligence quotient   language development disorder   learning difficulties  

摘要： Objective To compare the differences in intelligence levels and the distribution of intelligence levels among children aged 6 to 16 years with language development disorder (LDD), functional articulation disorder (FAD), and learning difficulties (LD), in order to provide a more scientific basis for precise diagnosis and intervention. Methods A retrospective study was conducted to collect data of 139 children with LDD, 142 children with FAD, and 106 children with LD who met clinical diagnostic criteria in the Child Healthcare Department of Henan Children's Hospital from October 2014 to September 2022. The Wechsler Intelligence Scale for Children-Fourth Edition (WISC-Ⅳ) was used to assess the intelligence levels of these three groups of children. Based on IQ scores, participants were categorized into five levels: Borderline, low-average, average, high-average, and superior. Results The proportions of children at the borderline IQ level were 22.3%, 33.1%, and 34.0% for LDD, FAD and LD groups, respectively;the proportions in the low-average range were 33.1%, 30.3%, and 21.7%;the proportions in the average range were 38.9%, 32.4%, and 42.5%;the proportions in the high-average range were 3.6%, 3.5%, and 1.9%;and the proportions in the superior range were 2.2%, 0.7%, and 0%, respectively. The verbal comprehension index of children with LDD was significantly higher than that of children with FAD (P<0.05);the processing speed index of children with FAD was significantly higher than that of children with LD (P<0.05). After controlling for gender, parental education level was significantly positively correlated with verbal comprehension, perceptual reasoning, working memory indexes and full-scale IQ of children with LDD (r=0.416, 0.288, 0.239, 0.409, P<0.01). For children with FAD, parental education level was only significantly positively correlated with their verbal comprehension index (r=0.224, P<0.01). For children with LD, grade was significantly positively correlated wit

关键词： 电力系统   卷积神经网络   状态识别  

摘要： 为了提升电力系统运行状态识别的智能化水平,采用卷积神经网络构建多层特征提取模型,研究系统架构设计、数据预处理方法及模型训练策略等。研究结果表明,该模型在多种电力状态识别中具有较高的准确率与稳定性,可有效支持复杂工况下的故障诊断与运行优化。