In reference to the status quo of research and the application of the agricultural expert system, this paper analyzes problems existing in the current development, and puts forward the idea of research and development...In reference to the status quo of research and the application of the agricultural expert system, this paper analyzes problems existing in the current development, and puts forward the idea of research and development for agriculturespecific software. The agent application is discussed, and an agent-based Agricultural Expert System Inspection Tool is constructed. In addition, this paper addresses the outlook in application, potential problems and the development trend of multi-agent-based inspection software for the agricultural expert system.展开更多
Technological progress has led to increased demand for small components with tiny features, which cannot be achieved through conventional machining. Industrial application of processes based on microcutting is limited...Technological progress has led to increased demand for small components with tiny features, which cannot be achieved through conventional machining. Industrial application of processes based on microcutting is limited by some issues concerning the geometrical scale. The process performance is significantly affected by milling machine, tool holder, tool, workpiece material microstructure, workpiece fixtures, and process parameters. At present, an ultimate micromachining assessment procedure is not available. This study aims to propose and conduct an experiment on a testing procedure for micromilling. The set up to be implemented and the output to be considered are defined and described. Three major stages are identified: estimation of the effective bandwidth of the load cell–tool holder system, the milling machine natural frequency measurement, and micromilling test execution. The entire procedure is performed, and its robustness is demonstrated.展开更多
Nowadays, the circulation of poor quality medicines is becoming an alarming worldwide phenomenon with serious public health and socio-economic concerns. The situation is particularly critical in developing countries w...Nowadays, the circulation of poor quality medicines is becoming an alarming worldwide phenomenon with serious public health and socio-economic concerns. The situation is particularly critical in developing countries where drug quality assurance and regulatory systems for drug manufacturing, importation, distribution and sales are weak. A sustained vigilance on poor quality medicines that regroup counterfeit/falsified, substandard and degraded medicines is therefore required to ensure patient safety and genuine medicines integrity. A case situation is illustrated including a strategic approach and analytical tools that were found useful to detect poor quality medicines, identify unknown components, and timely alerts for appropriate measures against the spread of those harmful products. Several suspected medicines randomly sampled in several strategic Rwandan areas were firstly check-controlled by means of visual inspection and then applying several analytical techniques from simple to more complex ones. The following medicines were studied: quinine sulfate tablets, artemisinin-based combination tablets, and artesunate powders for injection. Taking into account the pharmaceutical forms and the chemical characteristics, the following tests were applied: uniformity of mass, friability, disintegration, fluorescence, identification and assay. They were followed by more complex analytical techniques that allowed more comprehension of abnormal findings among which the presence of a wrong active pharmaceutical ingredient in quinine sulfate tablets which is mainly discussed in this paper to illustrate a strategic approach and various analytical tools that can be used in detecting and identifying unknown component in poor quality medicines.展开更多
为解决数控机床刀具无拆卸条件下,基于机械臂的刀具损伤视觉检测系统对准对焦调节耗时长、计算分析方法鲁棒性差等难题,提出了一种融合YOLOv5网络智能感兴趣区域(region of interest, ROI)的机器人视觉系统自动对准对焦方法。首先,利用...为解决数控机床刀具无拆卸条件下,基于机械臂的刀具损伤视觉检测系统对准对焦调节耗时长、计算分析方法鲁棒性差等难题,提出了一种融合YOLOv5网络智能感兴趣区域(region of interest, ROI)的机器人视觉系统自动对准对焦方法。首先,利用ROI模型检测并定位刀具中心,通过九点标定法计算机械臂末端对准坐标;然后自适应筛选ROI对焦窗口,采用改进的Laplacian函数计算清晰度评价值以确定最佳刀具图像。在实际设备上开展实验后结果表明,所提方法比一般方法灵敏度至少提高1.63倍,平均中心点误差为3.76像素,有效提升了刀具损伤视觉检测系统的准确度和灵活性。展开更多
为解决日常网络安全检测活动中综合使用多种维度的网络安全检测工具数据自动化汇总和统计耗费大量人力、汇总统计易出错等问题,文章在对各类主流网络安全工具原始报告结构调研的基础上,对当前HTML文件和PDF文件内容进行了解析及调研,实...为解决日常网络安全检测活动中综合使用多种维度的网络安全检测工具数据自动化汇总和统计耗费大量人力、汇总统计易出错等问题,文章在对各类主流网络安全工具原始报告结构调研的基础上,对当前HTML文件和PDF文件内容进行了解析及调研,实现了多源异构网络安全检测评估报告统计分析工具,能够对绿盟漏洞扫描工具、绿盟基线核查工具、Acunetix Web Application Scan和源代码扫描工具Fortify等原始报告的关键数据进行解析、汇总分析并形成汇总报告,极大地提高了安全检测人员的报告编写效率。展开更多
文摘In reference to the status quo of research and the application of the agricultural expert system, this paper analyzes problems existing in the current development, and puts forward the idea of research and development for agriculturespecific software. The agent application is discussed, and an agent-based Agricultural Expert System Inspection Tool is constructed. In addition, this paper addresses the outlook in application, potential problems and the development trend of multi-agent-based inspection software for the agricultural expert system.
文摘Technological progress has led to increased demand for small components with tiny features, which cannot be achieved through conventional machining. Industrial application of processes based on microcutting is limited by some issues concerning the geometrical scale. The process performance is significantly affected by milling machine, tool holder, tool, workpiece material microstructure, workpiece fixtures, and process parameters. At present, an ultimate micromachining assessment procedure is not available. This study aims to propose and conduct an experiment on a testing procedure for micromilling. The set up to be implemented and the output to be considered are defined and described. Three major stages are identified: estimation of the effective bandwidth of the load cell–tool holder system, the milling machine natural frequency measurement, and micromilling test execution. The entire procedure is performed, and its robustness is demonstrated.
文摘Nowadays, the circulation of poor quality medicines is becoming an alarming worldwide phenomenon with serious public health and socio-economic concerns. The situation is particularly critical in developing countries where drug quality assurance and regulatory systems for drug manufacturing, importation, distribution and sales are weak. A sustained vigilance on poor quality medicines that regroup counterfeit/falsified, substandard and degraded medicines is therefore required to ensure patient safety and genuine medicines integrity. A case situation is illustrated including a strategic approach and analytical tools that were found useful to detect poor quality medicines, identify unknown components, and timely alerts for appropriate measures against the spread of those harmful products. Several suspected medicines randomly sampled in several strategic Rwandan areas were firstly check-controlled by means of visual inspection and then applying several analytical techniques from simple to more complex ones. The following medicines were studied: quinine sulfate tablets, artemisinin-based combination tablets, and artesunate powders for injection. Taking into account the pharmaceutical forms and the chemical characteristics, the following tests were applied: uniformity of mass, friability, disintegration, fluorescence, identification and assay. They were followed by more complex analytical techniques that allowed more comprehension of abnormal findings among which the presence of a wrong active pharmaceutical ingredient in quinine sulfate tablets which is mainly discussed in this paper to illustrate a strategic approach and various analytical tools that can be used in detecting and identifying unknown component in poor quality medicines.
文摘为解决数控机床刀具无拆卸条件下,基于机械臂的刀具损伤视觉检测系统对准对焦调节耗时长、计算分析方法鲁棒性差等难题,提出了一种融合YOLOv5网络智能感兴趣区域(region of interest, ROI)的机器人视觉系统自动对准对焦方法。首先,利用ROI模型检测并定位刀具中心,通过九点标定法计算机械臂末端对准坐标;然后自适应筛选ROI对焦窗口,采用改进的Laplacian函数计算清晰度评价值以确定最佳刀具图像。在实际设备上开展实验后结果表明,所提方法比一般方法灵敏度至少提高1.63倍,平均中心点误差为3.76像素,有效提升了刀具损伤视觉检测系统的准确度和灵活性。
文摘为解决日常网络安全检测活动中综合使用多种维度的网络安全检测工具数据自动化汇总和统计耗费大量人力、汇总统计易出错等问题,文章在对各类主流网络安全工具原始报告结构调研的基础上,对当前HTML文件和PDF文件内容进行了解析及调研,实现了多源异构网络安全检测评估报告统计分析工具,能够对绿盟漏洞扫描工具、绿盟基线核查工具、Acunetix Web Application Scan和源代码扫描工具Fortify等原始报告的关键数据进行解析、汇总分析并形成汇总报告,极大地提高了安全检测人员的报告编写效率。
