Taiyuan University of Science and Technology

Multifractal Evolution Characteristics of Multiscale Fracture-Pore Structures in Coal under CO2 Phase-Transition Fracturing

Abstract To deeply analyze the multifractal evolutionary characteristics of multiscale fracture-pore structures in coal subjected to CO2 phase transition fracturing (CO2–PTF), CO2–PTF experiments on coal samples were carried out in this study. Multiple multiscale fracture-pore ch...

Effect of N and Mo Contents on Precipitation Behavior, Intergranular Corrosion Resistance, and Mechanical Properties of Super Austenitic Stainless Steel

High‐Mo super austenitic stainless steels are prone to precipitate Cr‐ and Mo‐rich σ phases during hot working, which severely impairs their corrosion resistance and mechanical properties. To regulate precipitation, maintain corrosion resistance, and enhance strength, the key lie...

Robotic grasping of hollow guardrail components for outdoor installation: a geometry-based RGB-D depth sampling approach for 3D localization

Purpose This study aims to develop an integrated sensing–perception–control system for automated highway guardrail installation, addressing the depth perception failure of RGB-D cameras over hollow structural regions in field working conditions. Design/methodology/approach An edg...

Tuning donor–acceptor interactions via electronic modulation in Ga-doped ZnO for carbon chain growth from syngas

Higher alcohol synthesis from syngas over conventional CuZn catalysts often encounters a trade-off between total alcohol selectivity and C 2 + distribution. Here, we show that Ga-doped ZnO enables precise electronic modulation to balance donor and acceptor reactions through contr...

Seasonal Shifts in Nitrogen Isotope Fractionation Regimes in the Leighton Cycle

Abstract Nitrogen isotopes are used to trace nitrogen oxides (NO x = nitric oxide (NO) + nitrogen dioxide (NO 2 )) emissions and nitrate formation, but their interpretation depends on isotope redistribution during NO−NO 2 cycling. A key uncertainty is whether this partitioning is...

Effect of tempering temperature on microstructure evolution and Cl − corrosion resistance of 4Cr13 steel

The effect of tempering temperature on microstructure and Cl − corrosion resistance of 4Cr13 steel was investigated using XRD, SEM, electrochemical and immersion testing. The results showed that with increasing tempering temperature, the matrix evolved from tempered martensite to...

Research progress on the thermal activation treatment process of coal gangue

Coal gangue is one of the largest solid wastes generated during coal mining and washing, and its low intrinsic reactivity greatly restricts direct high-value utilization. Thermal activation is an effective strategy for converting low-activity coal gangue into reactive aluminosili...

GalSpecCNN: Deep Learning Estimates of Fiber Stellar Mass and Specific Star Formation Rate with Uncertainty for LAMOST Galaxies

We present GalSpecCNN, a probabilistic deep-learning framework for estimating fiber-scale stellar mass (M*) and specific star formation rate (sSFR) from LAMOST galaxy spectra. The model uses a one-dimensional convolutional neural network to extract spectral features, followed by...

Boosting lattice oxygen activity and accelerating intermediate consumption for enhanced toluene catalytic oxidation via CeCu solid solution engineering

Background Ce-based catalysts demonstrated outstanding catalytic activity for volatile organic compounds (VOCs) oxidation. Cu had been extensively utilized as a secondary metal modifier to regulated the physicochemical properties of Ce-based catalysts, thereby enhancing toluene o...

Preparation of Mixed Matrix Membranes Using Graphitic Carbon Nitride as Solid Cross-Linking Agent for CO2 Separation

Abstract The development of efficient carbon capture technologies, such as membrane separation technology, is of vital importance for achieving carbon neutrality. Mixed matrix membranes (MMMs) integrate the advantages of polymer matrices and inorganic fillers, making them promisi...

Design and implementation of sheep posture estimation algorithm based on skeletal keypoint localization

Automated sheep posture recognition can provide posture-related behavioural information for precision livestock monitoring. Manual video observation is labour-intensive, and contact sensor-based methods may require specialized installation. This study developed a non-contact shee...

Physical simulation of roadway surrounding rock cumulative failure characteristics under dynamic loading and energy-absorbing support solutions

Roadway surrounding rock in deep coal mines is subjected to the combined effects of static loading and dynamic disturbances, which can induce progressive deformation, crack propagation, and catastrophic instability. To investigate the progressive failure characteristics and mecha...

Causality-aware many-objective intra-day dispatch for wind-PV-thermal-storage complementary power systems

Intraday dispatch of wind-PV-thermal-storage complementary power systems is challenged by volatile renewable generation, strong inter-temporal state coupling, narrow and evolving feasible regions, and conflicting economic, low-carbon, renewable-accommodation, and operational-secu...

A novel infrared thermography-based gearbox fault diagnosis under small samples and different working conditions via few-shot learning

Infrared thermography provides a non-contact solution for gearbox condition monitoring in complex industrial environments. However, reliable fault diagnosis from infrared images remains challenging under few-shot conditions. In this paper, a novel Multi-Scale SwinResNet-enhanced...

Inducing Orientation Polarisation via Regional Isomerisation in Covalent Organic Frameworks for Enhanced O 2 Photoactivation

ABSTRACT Boosting the O 2 photoactivation for efficient generation of reactive oxygen species is crucial to the synthesis of high‐value chemicals. Inducing strong dipole interaction is an effective strategy to strengthen the built‐in electric field (BIEF). However, it remains a g...

Novel intelligent design method of soft magnetic metallic glasses with excellent magnetic properties by utilizing machine learning technology

In this study, a machine-learning (ML)-assisted compositional screening strategy is developed for Fe-based amorphous/nanocrystalline soft magnetic alloys. Typical ML algorithms including random forest (RF), k-nearest neighbor (kNN), and support vector machine (SVM) are applied to...

A kinematic-muscle hybrid synergy-assisted EMG-driven NMSK model for muscle activation and joint moment prediction with minimal sensors

Cross-country sit-skiing relies heavily on upper-limb power, with double poling (DP) propulsion generated by coordinated pole forces and trunk rotation. Estimating shoulder and elbow joint moments and muscle forces during DP is crucial for technique optimization and injury-risk r...

Effect of Prefabricated Borehole Diameter on the Nonlinear Mechanical Response of Coal–Rock Composite Specimens Under Dynamic Loading

To investigate the effect of prefabricated borehole diameter on the dynamic response of coal–rock composite specimens, split Hopkinson pressure bar (SHPB) tests were conducted on specimens without a borehole and with borehole diameters of 4, 6, and 8 mm. Twelve specimens were tes...

Investigation into Adsorption Performance and Mechanism for Copper on Red Mud Modified Biochar

Peanut shells from Shanxi Province were used as the biomass feedstock to prepare three red-mud-modified biochars at red mud-to-peanut-shell mass ratios of 1:1 (RMBC1), 1:5 (RMBC2), and 1:10 (RMBC3) through suspension loading followed by pyrolysis. Their adsorption behavior and me...

Pollution characteristics, migration and transformation, and health risk assessment of polycyclic aromatic hydrocarbons in environmental media of prototype coking plants in Shanxi, China

Environmental context Coking is one of the important emission sources of polycyclic aromatic hydrocarbons (PAHs). We analysed distribution characteristics of PAHs emitted from the coke oven top and in environmental media in the prototype coking plants. The migration and transform...