数字波形记录仪测量控制系统研究

针对目前数字波形记录仪校准现状,利用多型标准可程控标准仪器搭建了自动测量控制系统,在VB6.0平台的基础上,开发了基于VISA COM函数库的自动测量软件。提出了"方案测试"的软件设计思想,将需要校准的功能或参数、设备的控制信息和校准点设置等编辑成测量控制方案,从而实现了测试的极大灵活性,在校准不同型号的数字波形记录仪时,无需改动软件平台就能达到测试目标。为开展此类仪器的自动校准提供了参考方法。     

采煤机大功率截割部加载试验的方法

介绍了采煤机大功率截割部加载试验的一种新的实现方法,同时阐述了加载试验的工作原理、主要组成部分和主要技术特点。     

面向神经形态感知的人工脉冲神经元的研究进展

近年来,随着人工智能技术和脉冲神经网络(SNN)的迅猛发展,人工脉冲神经元的研究逐渐兴起。人工脉冲神经元的研究对于开发具有人类智能水平的机器人、实现自主学习和自适应控制等领域具有重要的应用前景。传统的电子器件由于缺乏神经元的非线性特性,需要复杂的电路结构和大量的器件才能模拟简单的生物神经元功能,同时功耗也较高。因此,最近研究者们借鉴生物神经元的工作机制,提出了多种基于忆阻器等新型器件的人工脉冲神经元方案。这些方案具有功耗低、结构简单、制备工艺成熟等优点,并且在模拟生物神经元的多种功能等方面取得了显著进展。文章将从人工脉冲神经元的基本原理出发,综述和分析目前已有的各种实现方案。具体来说,将分别介绍基于传统电子器件和基于新型器件的人工脉冲神经元的实现方案,并对其优缺点进行比较。此外,还将介绍不同类型的人工脉冲神经元在实现触觉、视觉、嗅觉、味觉、听觉和温度等神经形态感知方面的应用,并对未来的发展进行展望。希望能够为人工脉冲神经元的研究和应用提供有益的参考和启示。     

合理选择施工方案修复采区煤仓

文章针对潘一矿采区煤仓损坏严重、修复难度大、工期紧的特点,认真选择方案,合理安排工序,采用顺序作业与平行作业相结合,成功地在规定检修期内完成煤仓修复和堵水任务。     

企业文化建设与实践研究——以湖北白莲河抽水蓄能有限公司为例

在白莲河抽水蓄能电站建设中,重视企业文化建设来提高员工综合素质和凝聚力,促使企业各种要素和谐发展,取得了高的效益。     

压缩机厂房桥式起重机选型浅析

从工作环境、起升高度、额定起重量、工作级别、运行速度、跨度等方面论述了桥式起重机选型的国家标准、行业标准和运行参数;从起重机行程、操作方式和导电方式论述了桥式起重机的吊装方式以及吊装操作注意事项。     

数据与知识驱动的零件特征工艺决策方法

在零件的工艺设计阶段, 加工工艺方案的生成强依赖于设计人员选择和应用的工艺知识. 而由于实际的生产环境与设计人员选择工艺知识存在着诸多偏差, 加工方案与实际的工艺过程不匹配成为当前零件制造领域关注的难题. 为解决上述问题, 本文提出了一种数据与知识双驱动的零件特征工艺决策方法. 本方法使用基于注意力机制的MLP深度学习算法, 从结构化工艺数据中挖掘工艺知识, 关联零件特征与特征工艺标签. 将其经过数据加工后, 用于训练神经网络模型. 经过验证, 该方法能够以零件特征的工艺数据为输入, 输出其对应的特征工艺标签的概率分布, 为零件工艺方案的选择提供决策支持.     

Genome-Wide Analysis of the Peptidase M24 Superfamily in Triticum aestivum Demonstrates That TaM24-9 Is Involved in Abiotic Stress Response

The peptidase M24 (Metallopeptidase 24, M24) superfamily is essential for plant growth, stress response, and pathogen defense. At present, there are few systematic reports on the identification and classification of members of the peptidase M24 proteins superfamily in wheat. In this work, we identified 53 putative candidate TaM24 genes. According to the protein sequences characteristics, these members can be roughly divided into three subfamilies: I, II, III. Most TaM24 genes are complex with multiple exons, and the motifs are relatively conserved in each sub-group. Through chromosome mapping analysis, we found that the 53 genes were unevenly distributed on 19 wheat chromosomes (except 3A and 3D), of which 68% were in triads. Analysis of gene duplication events showed that 62% of TaM24 genes in wheat came from fragment duplication events, and there were no tandem duplication events to amplify genes. Analysis of the promoter sequences of TaM24 genes revealed that cis-acting elements were rich in response elements to drought, osmotic stress, ABA, and MeJA. We also studied the expression of TaM24 in wheat tissues at developmental stages and abiotic stress. Then we selected TaM24-9 as the target for further analysis. The results showed that TaM24-9 genes strengthened the drought and salt tolerance of plants. Overall, our analysis showed that members of the peptidase M24 genes may participate in the abiotic stress response and provided potential gene resources for improving wheat resistance.     

Structure evolution,dielectric,and conductivity behavior of(K0.5Na0.5)NbO3-Bi(Zn2/3Nb1/3)O3 ceramics

(1-x)K0.5Na0.5NbO3-xBi(Zn2/3Nb1/3)O3 ((1-x)KNN-xBZN,x =0.010,0.015,0.020,0.025,and 0.030) lead-free ceramics were fabricated via a traditional solid-state metho...     

Investigation on the Transient Thermal Performance of a Mini-Channel Cold Plate for Battery Thermal Management

Cold plate is an important component for a liquid battery thermal management system.In order to study the transient thermal performance of the cold plate under ...