共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
A. Khoshnevisan H. Yoozbashizadeh 《Mineral Processing and Extractive Metallurgy Review》2013,34(4):292-299
This study is concerned with investigation of pressure oxidative leaching of entire molybdenum of a molybdenite concentrate. Effects of oxygen pressure, stirring speed, pulp density, acid concentration, and temperature on the leaching rate of molybdenum were studied. A three-layer feed-forward artificial neural network was applied to model the effect of the abovementioned parameters on the leaching ability. The leaching efficiency was considered as a target value for modeling. The quantified leaching efficiencies obtained by applying different parameters demonstrated a good agreement with neural network predictions. 相似文献
3.
在矿石储量计算过程中,准确计算矿石体重是影响矿体储量的一个重要因素。将人工神经网络理论引入矿石体重回归之中,并利用部分实际数据进行了传统线性回归方法与BP神经网络的对比研究。研究结果表明,神经网络方法完全可用于矿石体重回归分析之中 相似文献
4.
简述国内外在设备诊断中应用人工神经网络(Artificial Neural Networks-ANN)的发展状况,阐述人工神经网络在设备振动诊断领域的应用方法,现场使用表明人工神经网络对于设备故障的识别及诊断具有较好的应用前景. 相似文献
5.
6.
Gireesh S. S. Raman Mark S. Klima 《Mineral Processing and Extractive Metallurgy Review》2019,40(2):148-155
This study deals with the modeling and analysis of the pressure filtration process using statistical and machine learning techniques. The effects of externally controllable process-influencing factors such as pressure, pH, temperature, solids concentration, filtration time, air-blow time, and cake thickness on filtration performance, measured in terms of cake moisture, were modeled. A 9-factor regression model based on an exhaustive search algorithm and a 7-6-1 artificial neural network (ANN) model based on a resilient backpropagation algorithm were developed and gave R2 values of 0.84 and 0.94, respectively. Relative importance of input variables was analyzed using novel methods such as added-variable plots based on the regression model and Olden’s method based on the ANN model. Results from both methods established a negative correlation for pressure, solids concentration, filtration time, temperature, and air-blow time and a positive correlation for cake thickness and pH. Analysis from regression and ANN models indicated pH to be the most significant process-influencing factor. Even though both models served as good interpretable models, the ANN model outperformed the regression model in terms of predictive capability, with an R2 value of 0.965 compared with the regression model’s 0.750 for the test dataset. 相似文献
7.
8.
YanLu-Ming;(严六明);ZhanQian-Bao;(詹千宝);QinPei;(钦佩);ChenNian-Yi;(陈念贻)(ShanghaiInstituteofMetallurgy,AcademiaSinica,Shanghai200050... 相似文献
9.
人工神经网络在钢铁工业中的应用 总被引:16,自引:2,他引:14
人工神经网络因其具有较强的非线性问题处理能力且容错性强,能实现实时性应用及在线响应而得以钢铁工业中应用,本文叙述了其应用现状,分析了人工神经网络模型的优势及局限性,讨论了应用中存在的问题及未来的应用方向。 相似文献
10.
11.
神经网络在奥氏体钢设计中的应用 总被引:5,自引:0,他引:5
采用人工神经网络分别对奥氏体钢的相变临界点Ms、Mes,力学性能和化学成分间的关系建立了非线性网络模型,并通过试验数据验证了这些模型的正确性。此方法不同于以线性回归为基础来推导得到经验公式。它具有容错性好,通用性强等优点,神经网络的应用为材料的设计与应用提供了一种较为可靠的新途径。 相似文献
12.
bp神经网络在钢铁工业中的应用 总被引:1,自引:0,他引:1
张修群 《金属材料与冶金工程》2012,40(2):59-63
BP神经网络是近年来发展起来的一种模仿人脑神经网络行为特征,进行分布式并行信息处理的算法数学模型,在钢铁工业中有着广泛的应用前景.据此,介绍了BP(Back propagation)神经网络的基本工作原理、特点及其网络结构和工作方式等,主要针对BP神经网络在钢铁工业中的应用进行了概述,并指出了其局限性及发展前景. 相似文献
13.
14.
15.
16.
17.
本文提出了运用神经网络技术,通过拍摄转炉炉表被监测部位的红外热图像,经过计算机图像处理后,提取图像特征,并检测对应的炉内的蚀损状况,分别作为神经网络模型训练样本的输入和输出。训练好的神经网络系统即可用来监测转炉的炉衬蚀损状况。 相似文献
18.
19.
蒸气管网是具有典型大时滞特点的非线性网络系统结构,提高管网运行预测能力,对管网的安全高效运行有很好的指导意义。贝叶斯神经网络具有良好的泛化能力和准确计算能力,在网络目标函数中引入表示网络结构复杂性的惩罚项,以便能够在训练优化过程中降低网络结构的复杂性,达到避免网络过拟合的目的。实例验证表明,模型计算结果和泛化能力均有良好表现,优于传统BP算法计算性能,可提高企业蒸气管网运行管理水平,对流程工业节能减排建设有一定的帮助。 相似文献
20.
GAO Xiuhua QI Kemin DENG Tianyong QIU Chunlin ZHOU Ping DU Xianbin 《钢铁研究学报(英文版)》2006,13(6):71-0
The demand for high quality gear steel has rap-idlyincreasedin recent years with the steady devel-opment of automobile ,agricultural machine and me-chanical manufacture industries[1]. In general , thegear steel is difficult to distort after heat treat mentbecause of its large width of hardenability band andso the life of gear is reduced[2].Stability of hardena-bilityis an i mportant index in producing gear steel .They directly affect mechanical properties of auto-mobile gear . The control of h… 相似文献