本研究针对 entrained flow气化过程中合成气组分 (H2 /CO/CO2 /CH4 )预测难题，创新性采用FT-Transformer深度学习模型与随机森林 (RF)、梯度提升机 (GBM)等ML算法对比，发现FT-Transformer在CO ( R2 =0.861)、CH4 (0.891)预测中表现最优且无过拟合，SHAP分析揭示O2 /coal ...

Hard Trowel Finish on Air-entrained concrete (Position Statement #1) published by the American Society of Concrete Contractors, 2025 S. Brentwood Blvd, Suite 105, St. Louis, MO 63144 | Phone: 314 ...

Laboratory testing and field experience have shown that highway concrete should be properly air entrained to resist the action of freezing and thawing, particularly in wet climates. TRB hosted a ...

Numerous investigations have been conducted to determine the effect of fuel composition and molecular structure on particulate emissions using exhaust gas analysis, but relatively few measurements ...

Which indicates that fresh state entrained air due to PEG-PVA addition is not stable and air gets released during concrete consolidation. PEG-PVA-modified and AEA samples were proven to improve freeze ...