Research from China Institute of Water Resources and Hydropower Research Provide New Insights into Physics (Compaction Density Evaluation Model of Sand-Gravel Dam Based on Elman Neural Network With Modified Particle Swarm Optimization)

摘要

By a News Reporter-Staff News Editor at Network Daily News - A new study on physics is now available. According to news originating from Beijing, People’s Republic of China, by NewsRx correspondents, research stated, “The compaction density of sand-gravel materials has a strong gradation correlation, mainly affected by some material source parameters such as P5 content (material proportion with particle size greater than 5 mm), maximum particle size and curvature coefficient.”