Shandong Iron and Steel Group (China)

Effect of ultrafine slag dosage on chloride and sulfate resistance of blended cement

To investigate the effect of ultrafine ground granulated blast furnace slag (GGBS) on the corrosion resistance of blended cement, in this study, the mechanical properties, chloride resistance, sulfate resistance, hydration products and pore structure of a fly ash–gypsum blended c...

Thermofluid Behavior During Post‐VD Soft Argon Stirring of X80 Pipeline Steel: Coupled Modeling and Industrial Validation

Postvacuum degassing (VD) soft argon stirring controls temperature homogenization and interfacial stability during clean steel refining. A 3D transient coupled flow and heat‐transfer model was developed for a 210 t ladle during post‐VD soft stirring of X80 pipeline steel. Four qu...

Research Progress and Prospect of Ultralow Phosphorus Steel Smelting Technology

Ultralow phosphorus steel (phosphorus content ≤ 0.005%) is a key material for high‐end equipment manufacturing in fields such as nuclear power, marine engineering, and high‐pressure vessels, where phosphorus content control is the core technology. Molten steel dephosphorization i...

IRA-YOLO: Inter-Class Relation Attention for PPE Detection in Industrial Scenes

Personal protective equipment (PPE) detection in industrial scenes is a joint classification-and-localization problem complicated by partial occlusion, scale variation, and background clutter. PPE categories also follow structured physical relations; for example, helmets are norm...

Comprehensive evaluation of roadway cut blasting based on an entropy-weighted optimized matter-element cloud model

The comprehensive evaluation of cut blasting constitutes a multi-objective decision-making problem in underground rock engineering. When the differences among alternative blast design schemes are marginal, it is essential to account for the boundary fuzziness and mutual interacti...

A ReSCAL-based numerical study on synergistic optimization of photovoltaic arrays for sand control and power generation

In arid desert environments, photovoltaic (PV) arrays not only serve as clean energy suppliers, but also act as physical barriers to mitigate wind-blown sand movement. Based on the Real-Space Cellular Automaton Laboratory (ReSCAL), this study explores the coupled effects of PV ar...

Numerical investigation of resistance reduction mechanisms and scale effects in tandem ship formation

Ship formation offers a strategic approach for resistance reduction in sustainable maritime transportation, whereas the underlying physical mechanisms and their scale dependencies remain insufficiently understood. In the present research, a URANS-based framework integrated with r...

Dual-targeted bioengineered bacterial extracellular vesicles ameliorate senile osteoporosis via SAE1-mediated NAT10 SUMOylation and ac4C-dependent glycolysis

Senile osteoporosis (SOP) is an age-related skeletal disease characterized by progressive bone loss and the deterioration of bone microarchitecture. Promoting the osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) is a potential strategy for SOP intervention...