柴油机特性试验的计算机模拟

为了提高教学效率,优化教学过程,加强实验技能培养,本论文结合学校硬件和软件情况采用Visual Basic语言开发了柴油机特性试验软件系统平台,为学生提供了一个人机交互、界面友好的学习试验环境。本系统是采用Visual Basic语言构建了柴油机特性试验软件系统平台,可以进行柴油机负荷特性和速度特性试验,学生可以选择不同的试验类型,不同的柴油机型号,以及试验中的不同的过程参数进行试验,得到相应的试验数据绘制出负荷特性曲线,速度特性曲线和万有特性曲线,进而方便学生分析参数间的变化规律来评价柴油机的性能。     

利用VB实现SQL SERVER数据库的备份与恢复

数据安全对数据库应用系统至关重要。对于一般使用者而言，SQL Server本身的备份操作太专业，数据的存储也不方便。笔者提出了一个从Microsoft Visual Basic前台实现的数据库备份与恢复的解决办法，很好地解决了上述问题。     

基于MFC的拉扭复合系统界面设计

为了方便对拉扭复合系统中2台伺服电机的控制,设计了基于MFC的上位机界面。通过串口通信,使用不同的按钮操作设置伺服驱动器相应参数,从而控制2台伺服电机的运行。上位机实时接收伺服驱动器监控数据绘制出转速、位移、转矩曲线。针对在数据接收过程中信息帧接收错误的情况,使用拼接两相邻错误信息帧的方法进行修复。结果表明:上位机界面实现了系统功能及对电机运行工况的监控。     

在LabVIEW环境下基于ADO技术和SQL语言的数据库系统实现

本文介绍了在LabVIEW环境下,如何利用ActiveX对象功能调用Microsoft ADO控件和SQL语言实现对数据库的访问,并给出了学生管理数据库系统的具体实现。通过实际测试,访问速度快,内存支出和占用磁盘空间较少,是一种理想的数据库实现方法。     

基于注意力机制的Siamese目标跟踪算法研究

为了进一步提升Siamese神经网络算法在目标跟踪领域的性能，本文对SiamMask的backbone模型基于注意力机制原理进行了重新设计。首先，对Siamese目标追踪网络的backbone网络框架进行局部修改；其次，对改进的算法与原SiamMask算法在Microsoft COCO2017数据集上进行了网络训练与验证；最后，将原SiamMask算法与改进的算法的验证集数据进行比对，以此来评价改进算法的性能。结果表明，在同等算力与数据集的条件下，基于注意力机制的backbone Siamese目标跟踪算法比SiamMask在IOU值上有2个百分点左右的性能提升。     

动画agent在e-learning系统中的设计与实现

伴随着信息技术的高速发展,产生了许多基于WEB的系统,使人们得以方便、高效的处理事情,完成相应任务。其中的Elearning系统拥有数量众多的教学资源,利用E-learning系统,教师可以高效快捷的开展教学工作,学生可以进行个性化学习。本文阐述了一个E-learning系统的设计与实现,该系统包括了E-learning系统的基本功能,如课程资源上传下载、教学视频在线播放、在线测验以及智能交互等功能,并且该系统引入了Microsoft Agent,Microsoft Agent负责与用户进行交互,对用户进行提醒和提示。     

用VB创建支持断点续传的Internet传输控件

简要介绍了ＦＴＰ的功能和实现方法；并说明利用ＦＴＰ实现断点续传的原理。最后结合ＶｉｓｕａｌＢａｓｉｃ编程讲述了创建支持断点续传的Ｉｎｔｅｒｎｅｔ传输控件的过程．     

SQL SERVER数据库与VB对接方法研究

本文论述了SQL Server数据库如何与高级语言VB的连接的具体方法。     

Structure-based object representation and classification in mobile robotics through a Microsoft Kinect

A new approach enabling a mobile robot to recognize and classify furniture-like objects composed of assembled parts using a Microsoft Kinect is presented. Starting from considerations about the structure of furniture-like objects, i.e., objects which can play a role in the course of a mobile robot mission, the 3D point cloud returned by the Kinect is first segmented into a set of “almost convex” clusters. Objects are then represented by means of a graph expressing mutual relationships between such clusters. Off-line, snapshots of the same object taken from different positions are processed and merged, in order to produce multiple-view models that are used to populate a database. On-line, as soon as a new object is observed, a run-time window of subsequent snapshots is used to search for a correspondence in the database.Experiments validating the approach with a set of objects (i.e., chairs, tables, but also other robots) are reported and discussed in detail.     

An approach to the electrochemical activity of poly-(phenothiazines) by complementary electrochemical impedance spectroscopy and Vis-NIR spectroscopy

The electroactivity of two poly-(phenothiazine), the poly-(Azure A) and the poly-(Methylene Blue), has been compared in this work. The spectroelectrochemical results prove clearly the existence of two electroactive moieties integrated in the polymeric lattice, the phenothiazine ring (detected by changes of absorbance at 590 and 685 nm) and the newly formed covalent links which fixes the monomers in the backbone of the polymer (detected by changes of absorbance at 460 and 875 nm). Differences in the electrochemical response of both polymers are due to differences in this covalent link. However in both polymers, the charge balance during electrochemical reactions takes place by the exchange of one anion species and one cation species during the double electronic transference in both types of electroactive centers. Electrochemical impedance analysis together with the spectroelectrochemical (cyclic voltammetry + Vis-Near IR spectroscopy) makes possible to throw light on the mechanistic model of the electrochemical reaction of these polymers taking into account the coupled electronic/ionic transports, the trapped polarons (pinning model), structural configurations and inner water molecules.