使用人工神经网络预测浮选回收率与碰撞概率

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"Estimation of froth flotation recovery and collision probability based on operational parameters using an artificial neural network (2010年)" 本文是工程技术领域的学术论文,发表于2010年的《国际矿物、冶金与材料期刊》(International Journal of Minerals, Metallurgy and Materials),主要探讨了如何利用人工神经网络来预测在不同操作条件下石英浮选精矿的回收率和碰撞概率。浮选是矿物加工的重要步骤,用于分离有价值矿物和脉石。 在浮选过程中,关键的操作参数包括无量纲数,如弗劳德数(Froude number)、雷诺数(Reynolds number)和韦伯数(Weber number)。这些参数分别反映了流体动力学特性,如浮选机中的气泡速度、流体粘度和表面张力等因素对浮选过程的影响。通过人工神经网络(Artificial Neural Network, ANN)模型,研究者可以更准确地理解这些参数如何影响矿物粒子与气泡的碰撞概率,从而优化浮选效率和矿物的回收率。 论文中提到的人工神经网络是一种模仿人脑神经元结构的计算模型,能通过学习和训练处理复杂的非线性关系。在本研究中,ANN模型被用来建立浮选操作参数与恢复率和碰撞概率之间的数学关系,以实现预测和优化。此外,还可能采用了回归分析方法来进一步验证和校正模型的预测结果。 浮选回收率是指在浮选过程中,目标矿物从原矿中成功分离并富集到精矿中的比例。碰撞概率则是指矿物颗粒与气泡相遇并发生粘附的概率,它是决定浮选效率的关键因素。提高这两个指标对于提高矿物加工的经济效益至关重要。 作者Saeed Chehreh Chelgani、Behzad Shahbazi和Bahram Rezai分别来自加拿大西安大略大学的Surface Science Western、伊朗伊斯兰阿扎德大学科研分院的矿业工程系以及伊朗阿米尔卡比尔科技大学。他们的研究为理解和控制浮选过程提供了新的工具和方法,有助于矿产行业的技术进步。 这篇论文通过结合浮选工程学和人工智能技术,为矿物浮选的精细化控制提供了理论支持和实践指导,对于提高浮选效率和资源利用率具有重要意义。

With the rapid development of China's economy, the per capita share of cars has rapidly increased, bringing great convenience to people's lives. However, with it came a huge number of traffic accidents. A statistical data from Europe shows that if a warning can be issued to drivers 0.5 seconds before an accident occurs, 70% of traffic accidents can be avoided. Therefore, it is particularly important to promptly remind drivers of potential dangers to prevent traffic accidents from occurring. The purpose of this question is to construct a machine vision based driving assistance system based on machine vision, providing driving assistance for drivers during daytime driving. The main function of the system is to achieve visual recognition of pedestrians and traffic signs, estimate the distance from the vehicle in front, and issue a warning to the driver when needed. This driving assistance system can effectively reduce the probability of traffic accidents and ensure the safety of drivers' lives and property. The main research content of this article includes the following aspects: 1. Implement object detection based on the YOLOv5 model. Conduct research on convolutional neural networks and YOLOv5 algorithm, and develop an object detection algorithm based on YOLO5. Detect the algorithm through road images, and analyze the target detection algorithm based on the data returned after training. 2. Estimate the distance from the front vehicle based on a monocular camera. Study the principle of estimating distance with a monocular camera, combined with parameters fed back by object detection algorithms, to achieve distance estimation for vehicles ahead. Finally, the distance estimation function was tested and the error in the system's distance estimation was analyzed. 3. Design and implementation of a driving assistance system. Based on the results of two parts: target detection and distance estimation, an intelligent driving assistance system is constructed. The system is tested through actual road images, and the operational effectiveness of the intelligent driving assistance system is analyzed. Finally, the driving assistance system is analyzed and summarized.

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