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[an error occurred while processing this directive]Research on the Prediction of CO Concentration in Single-head Roadway Based on Curve Fitting and Neural Network
Received date: 2023-07-31
Revised date: 2023-11-07
Online published: 2024-03-22
In order to realize the prediction of CO concentration in the single-head roadway of the mine,based on the monitoring data of CO concentration in the heading face of the single-head roadway in the 1800 transport lane of Laochang tin mine in Yunnan Province.Firstly,the MATLAB curve fitting toolbox was used to fit the curve of the change of CO concentration with time in the single-head roadway,and the mathematical model of the change of CO concentration with time in the single-head roadway of the mine was established.Through the model,the time required for the CO concentration value in the single-head roadway of the mine to reach the CO concentration value required by the safety regulations was obtained.Then,the convolutional neural network time series prediction model(CNN model) and the BP neural network time series prediction model(BP model) were used to predict the CO concentration,and the two evaluation indexes of R 2 and RMSE were compared.The results show that the BP neural network time series prediction model has the better prediction effect on the CO concentration of the single-head roadway,which provides an accurate and reliable theoretical basis for the monitoring and control of the CO concentration value of the single-head roadway in the mine.
Changwei ZHOU , Xianping XIE , Xidong DU . Research on the Prediction of CO Concentration in Single-head Roadway Based on Curve Fitting and Neural Network[J]. Gold Science and Technology, 2024 , 32(1) : 75 -81 . DOI: 10.11872/j.issn.1005-2518.2024.01.108
我国科研团队牵头建立首个矿物超族分类命名方案获得批准
由侯增谦院士团队牵头国际研究小组建立的碳锶铈矿超族分类命名方案获得国际矿物学协会新矿物命名及分类委员会(IMA-CNMNC)的正式批准。“这是第一个由我国科研团队主导建立的矿物超族分类命名体系。”中国新矿物及矿物命名专业委员会副主任委员谷湘平介绍。
碳锶铈矿超族是含水稀土碳酸盐矿物。稀土因其独特的物理化学性质,广泛应用于新能源、新材料、节能环保、航空航天以及电子信息等领域,是现代工业中不可或缺的重要元素。
国际同行认为,碳锶铈矿超族建立不仅明确了该矿物超族的化学通式、分类边界和命名原则,为晶体学家和矿物学家传达重要的矿物化学信息,同时可以为稀土元素在碱性岩和碳酸岩中的迁移、沉淀机制研究提供新的参考。
命名方案的第一作者、中国地质大学(北京)博士研究生王艳娟介绍,新矿物的发现与矿物分类命名是地学领域重要的基础研究,科学的分类命名方案可以为人类认识复杂的矿物系统以及如何将矿物归类提供国际标准规范。截至目前,经由IMA-CNMNC正式批准和认可的矿物超族共34个,独立分级的矿物族31个。“长时间以来,制定矿物超族分类命名方案的研究工作一直被西方国家垄断,碳锶铈矿超族的建立,提高了我国矿物学的基础研究水平和国际影响力。”王艳娟说。
新华社)
http://www.goldsci.ac.cn/article/2024/1005-2518/1005-2518-2024-32-1-75.shtml
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