DONGHUI LI

Dr. DONGHUI LI

orcid

Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 September 2024 in Steel Research International
Verified
Journal Article
Closed access
SDSoumitra Kumar Dinda
Soumitra Kumar Dinda
DLDONGHUI LI
DONGHUI LI
FGFernando Guerra
Fernando Guerra
CCChad Cathcart
Chad Cathcart
MBMansoor Barati
Mansoor Barati

15 December 2024 in ISIJ International
Verified
Journal Article
Open access
PDF file
SDSoumitra Kumar Dinda
Soumitra Kumar Dinda
DLDONGHUI LI
DONGHUI LI
FGFernando Guerra
Fernando Guerra
CCChad Cathcart
Chad Cathcart
MBMansoor Barati
Mansoor Barati
Argon gas injection in slab continuous casting is common practice to counter SEN clogging phenomena. Bubble characteristics determine the probability of bubble-driven defects such as steel cleanliness, liquid steel reoxidation, and sliver and blister defects. 1:2 scaled water model studies were performed with the help of an advanced high-speed-high-resolution camera shadowgraph imaging technique. Bubble Sauter mean diameter and count were calculated using Trainable Weka segmentation, a machine learning image-based segmentation in the ImageJ platform for different processing conditions such as gas flow rate, liquid flow rate, mold width, and submerged entry nozzle (SEN) depth. A predictive model was developed on the experimental data using an artificial neural network (ANN) algorithm to optimize the bubble mean diameter and count sampling strategy. The model performance is optimized based on the cross-validated adjusted R2. The model shows significant promise with bootstrapping aggregation, five-fold cross-validation, and improved accuracy.