通过使用改进的人工智能,通过每日溶解氧度预测水质
1University of Cambridge, Cambridge, CB2 1TN, UK. jy484@cam.ac.uk.
Scientific reports
|November 21, 2023
概括
这项研究引入了四种新方法来预测溶解氧 (DO) 水位,这是水质的关键指标. 电磁场优化-MLPNN模型被证明是DO预测中最有效和最准确的.
科学领域:
- 水文学的水文学
- 环境科学 环境科学
- 计算智能是一种计算智能.
背景情况:
- 溶解氧 (DO) 是一个关键的水文参数,也是水质的主要指标.
- 准确的DO预测对于有效的水资源管理和生态健康监测至关重要.
研究的目的:
- 引入和评估四种新的整合方法来预测DO度.
- 使用现实世界水文数据来比较这些方法的性能.
主要方法:
- 采用多层感知神经网络 (MLPNN) 作为预测模型.
- 使用了四种优化算法:基于教学学习的优化 (TLBO),正弦共弦算法,水循环算法 (WCA) 和电磁场优化 (EFO).
- 训练和测试模型使用来自俄勒冈州克拉马斯河 (USGS站) 的水文数据.
主要成果:
- 所有模型在DO预测中都显示出可靠性,WCA-MLPNN在训练阶段显示出初始优势 (MAE:0.9624).
- 在测试阶段,EFO-MLPNN和TLBO-MLPNN的表现略高于WCA-MLPNN,这是皮尔森相关系数 (Rp) 和根平均平方误差 (RMSE) 所示的.
- 鉴于复杂性和优化时间,EFO-MLPNN被确定为最有效的工具.
结论:
- 开发的整合模型,特别是EFO-MLPNN,为基于机器学习的DO建模提供了更高的准确性.
- 这些新的方法为水文参数预测和水质评估提供了先进的工具.
- 这些发现表明,环境监测的计算智能应用有着显著的进步.
相关概念视频
Quality of Water
In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
Testing Water Quality
When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...


