Shandong University of Science and Technology

Rapid Fault Restoration Strategy of Power System Based on Mobile Operation and Maintenance Base

In recent years, power grids have grown increasingly complicated, and the rising penetration of new energy sources poses prominent risks to the secure and stable operation of power systems. As a critical technology for improving grid resilience and power supply reliability, mobil...

A Knowledge-Enhanced Iterative Reasoning Framework for Accurate and Traceable Fault Diagnosis in Distributed Service Systems

Fault diagnosis in distributed systems is challenged by complex service dependencies, cascading anomaly propagation, and similar symptom patterns. This paper proposes a knowledge-enhanced iterative reasoning framework that integrates large language models (LLMs) with a numerical...

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...

Dynamic lane-changing trajectory planning based on spatiotemporal skewed driving risk field

In lane-changing trajectory planning, the relative motion between the ego vehicle (EV) and surrounding vehicles (SVs) poses dynamic collision risks. However, existing risk field models limit their applicability in complex traffic environments as they are insufficient to quantify...

Measurement error law and uncertainty characterization method of directional drilling trajectory in advanced investigation

To improve the trajectory control accuracy of directional drilling for advanced geological investigation, this study systematically investigates the composition, propagation law, and uncertainty characterization method of measurement errors based on theoretical calculations and e...

Mo equivalent guided microstructural regulation and strength-toughness synergy of Fe-doped near β titanium alloy

The intrinsic strength-toughness trade-off, coupled with an inadequate understanding of microstructure regulation, restricts the further development of as-cast near β titanium (Ti) alloys with ultra-high strength and toughness. In this work, a series of Ti-7Mo-4Al-4Zr-3Nb-2Cr- x...

Comprehensive exploration of the C3H8N radicals potential energy surface

C3 amines (C3H9N) are the simplest aliphatic amine subgroup encompassing primary, secondary, and tertiary isomers, playing a key role in understanding nitrogen migration during biomass thermal conversion. Despite extensive computational studies on the H abstraction rates of C3 am...

Digital twin technology and operations management efficiency in construction: the roles of information transparency, collaboration and digital readiness

Purpose This study examines how Digital Twin Technology (DTT), defined as a virtual replica of physical systems enabled by real-time data, influences operations management efficiency (OME) in the construction industry. Drawing on Resource Orchestration Theory (ROT), it explores t...

A Physics‐Guided Feature Selection Machine Learning Approach for Cloud Probability Retrieval and Detection From TEMPO Imagery

Abstract Accurate cloud detection is critical for reliable retrievals of aerosols and trace gases from remote‐sensing measurements. TEMPO provides unprecedented hourly observations over North America, but radiometric calibration biases, thousands of spectral channels, and limited...

Unveiling the cooling effects of urban green spaces in Eastern China: spatial heterogeneity, diurnal asymmetry, and nonlinear margins of 2D/3D features

Urban green spaces (UGS) play an important role in mitigating urban heat island effects. However, the mechanisms underlying their cooling effects are still not fully understood, particularly regarding the role of three-dimensional vegetation structure and nonlinear threshold resp...

Aero-DETR: a frequency-adaptive sparse-interaction network for UAV-assisted aircraft surface defect detection

Abstract Aircraft surface defect inspection is critical for aviation safety but remains challenging because defects in unmanned aerial vehicle (UAV) imagery are often small, low-contrast, and multi-scale. We construct the aircraft UAV defect inspection dataset (AUDID), containing...

Efficient nitrogen management as a win-win strategy for air quality, health, and climate

Reactive nitrogen (Nr) management links climate policy, air quality and food production, yet its combined impacts remain poorly quantified. Here, we conduct ensemble simulations with two global climate models, Goddard Institute for Space Studies (GISS) and Community Earth System...

Competition mechanisms of interfacial crack propagations in thermal barrier coatings

Abstract Cracking failure of thermal barrier coatings (TBCs) in advanced gas turbines under bending loads presents a persistent engineering challenge, particularly regarding how cracks compete and propagate through multilayer structures. This study addresses that challenge by con...

Fisher-Information-Based Cooperative Sensor Node Pre-Selection for UWB-Aided GNSS-Denied UAV Swarm Localization Under Heterogeneous Ranging Noise

Ultra-wideband (UWB) inter-node ranging provides relative-distance constraints for cooperative localization in GNSS-denied UAV swarms, but dense candidate networks can exceed the available ranging slots, communication bandwidth, computation, and energy. This paper proposes a Fish...

Machine-Learning-Based Screening of Relative Eccentric-Wear Severity in Shield TBM Disc Cutters Using 3D-Scan Morphology Labels

Disc-cutter wear in abrasive strata is spatially non-uniform, yet mean wear depth cannot indicate where it concentrates. This retrospective feasibility study develops a machine-learning-based condition-monitoring framework that predicts the relative severity of eccentric wear fro...

Tracking the baryon number with nuclear collisions

Baryon quantum number is found to be conserved since baryogenesis in the early Universe. Conventionally, each fractionally charged valence quark is understood to carry one-third of a baryon number. An alternative hypothesis posits that baryon number is instead carried by a baryon...

Analysis of the application of computerized optokinetic nystagmus analyzer in vision examination

To investigate the practicability, accuracy, and consistency of the computerized optokinetic nystagmus (OKN) analyzer for visual acuity (VA) measurement. Cross-sectional consistency evaluation study. A total of 219 subjects (13.48 ± 12.89 years, 115 males, 104 females) underwent...

Flow field evolution mechanism and fine separation performance of coal slime in a novel cyclone cluster with a tapered column section

Single-stage hydrocyclones struggle to meet the requirements for the fine separation of coal slime. Existing combined hydrocyclones are constrained by the discharge capacity of the transverse underflow port, where the recirculation vortex at the bottom induces flow field instabil...

Paleomagnetic Reconstruction of the Early Triassic Paleogeographic Position of the South Yellow Sea and Its Geological Significance

Most studies on the Early Triassic paleomagnetism of the Yangtze Block (YB) have concentrated on the Western to Middle parts, but the South Yellow Sea (SYS) in the Eastern YB (EYB) is relatively lacking. To ascertain the paleogeographic position of the SYS, we isolated the charac...

High-Precision UT1 Prediction with Different Angular Momentum Combination Schemes

Universal Time (UT1) is a core component of the Earth orientation parameters (EOP). High-precision UT1 predictions are essential for satellite navigation, deep-space exploration, and the maintenance of national standard time. Although effective angular momentum (EAM) information...