侯马冶炼厂奥斯麦特熔炼炉炉渣恶化的处理

介绍侯马冶炼厂奥斯麦特熔炼炉3次炉渣恶化的原因，采取的措施和结果。粉煤灰积存，生料堆积和风料比失当造成炉渣SiO2含量升高，Fe含量降低是炉渣恶化的主要原因，添加高铁造渣成分调整渣组成或不加料浸沿喷枪正常熔炼状态操作，将生料中的铁氧化造渣，提高炉温，改善炉渣性质，使炉况恢复正常。     

意大利RIS-2K探地雷达数据解密及其快速可视化方法

RIS-2K探地雷达数据结构一直不公开,给利用RIS-2K雷达实测数据带来了极大的困难。为此,对RIS-2K探地雷达数据进行了分析与多方测试,基本摸清其数据结构,并编程实现了对RIS-2K探地雷达数据的读取。在常规可视化方法基础上,应用GPU并行技术实现了RIS-2K探地雷达数据快速可视化,有效解决了常规可视化速度慢及界面冻结问题,满足了对实测探地雷达资料进行实时处理解释工作的需要。试验结果证明了该方法的正确性和有效性。     

基于卷积神经网络的直线描述方法研究

为提高直线特征匹配的可靠性,提出一种基于卷积神经网络（CNN）学习的直线特征描述方法。构建用于网络学习的大规模直线数据集,该数据集包含约20.8万对匹配直线对,每条直线用其周围的局部图像块表征。将图像块输入CNN,利用HardNet网络结构提取特征,使用三元组损失函数进行训练,输出强鲁棒性的直线特征描述子。实验结果表明,与手工设计的描述子MSLD和IOCD相比,该描述子在视角、模糊、尺度和旋转变化下均具有较好的区分性,在图像拼接应用中同样表现出良好的描述性能。     

直流故障引起全站失压案例分析及防范措施

分析了一例直流系统故障引起变电站全站失压的案例,查找故障原因及存在问题,针对存在问题从技术上和组织上提出了防范措施。     

Single-crystal diamond micro-cupped resonators made by laser ablation

This paper presents a novel three-dimensional fabrication process of micro-scale shell resonator made of single-crystal diamond (SCD) called micro-cupped resonator (MCR). The key feature of the process is the application of laser ablation, which can contribute to the shaping process of SCD with higher accuracy, better structural symmetry, greater speed, and lower breakage rate. UV laser high precision processing machine has been employed for the ablation of SCD in the present investigation. This paper describes the principle of laser ablation of SCD and analyses the effects of beam parameters on ablation quality. Then MCR with better structural symmetry and less structural imperfection has been successfully fabricated based on optimum parameters by laser ablation. The MCR is promising for emerging applications such as micro rate-integrating gyroscope.     

Os-TMK-OP-乙醇体系的有机溶剂化效应

研究了在乳化剂ＯＰ存在下，锇－硫代米蚩酮超高灵敏显色体系及其有机溶剂化效应。其ε４６０ｎｍ＝１．２×１０７Ｌ·ｍｏｌ－１·ｃｍ－１，精密度０．０１８％，检出限５．７×１０１０ｇ／ｍＬ，检测下限１．８８×１０－９ｇ／ｍＬ．锇含量在０～０．０２０ｍｇ／Ｌ范围内符合比耳定律。拟定的方法可用于痕量我的测定，结果令人满意。     

某激光制导炸弹内场检测设备的研制

本文介绍了某激光制导炸弹内场检测设备的研制过程.硬件设计上采用DSP技术、CPLD技术以及交流有效值变换技术,实现了对炸弹的响应采集和参数检测;系统软件采用了一种通用测试软件框架,提高了测试软件的通用性、可扩充性和可移植性.该设备已成功应用于炸弹内场测试.     

基于实例推理的高速切削数据库系统

由于目前十分缺乏合理适用的高速切削数据 ,使建立高速切削数据库遇到了很大困难 ,也在一定程度上限制了高速切削技术的推广应用。利用基于实例推理技术 ,可为建立高速切削数据库提供一个可行且有效的方法 ,即将以前切削加工积累的切削数据和经验存储在数据库中 ,为新的工件加工问题提供参考解决方案。建立了简洁可行的用结构化数据表示的实例描述模型 ,分析了实例相似度的计算问题并介绍了实例检索的具体方法。     

A time-space discretization method in milling stability prediction of thin-walled component

The stability prediction of thin-walled workpiece milling is an awkward problem due to the time variant of dynamic characteristics during milling process. Integrating the time discretization method for stability prediction mentioned in many articles, a novel time-space discretization method for thin-walled component milling stability prediction is proposed based on thin plate theory and mode superposition principle, which includes the effects of the engagement position between cutter and workpiece and multi-modes of the system. The results show that the method presented is very reliable and efficient, and its accuracy is also in good agreement with experimental results. Additionally, the method can be used to handle various complex boundary conditions by means of the updated Rayleigh-Ritz solutions together with the penalty method. Two case studies are performed to explain the validation of the method as well as milling experiments of a half-clamped thin plate.