Chengdu University of Technology

Motivational Trajectories of Chinese Secondary School EFL Learners: Understanding Demotivation and Remotivation Through a Bioecological Lens

This study drew on bioecological systems theory to investigate factors influencing demotivation and remotivation among Chinese secondary school EFL learners. Adopting a sequential explanatory mixed-methods design, 129 Grade-12 students were asked to create motivational change gra...

Cerium isotopic behavior during gabbro weathering in a tropical climate

Cerium (Ce) is a redox-sensitive element, making it an effective tracer for continental weathering processes. To elucidate mechanisms of Ce isotopic fractionation during chemical weathering processes, we analyzed Ce isotopic compositions across a well-developed latosol profile de...

Managing hydraulic fracturing-induced seismicity in the Duvernay shale: Triggering mechanisms, influencing factors, and practice-oriented mitigation strategies

Abstract This review provides a Duvernay-focused synthesis of hydraulic fracturing (HF)-induced seismicity, integrating geological datasets, case studies of significant events, coupled poroelastic simulations, and machine-learning-based factor ranking. While the three underlying...

Evidence driven dual granularity cross modal reasoning for cultural heritage visual language understanding

This paper addresses a critical limitation in vision-language models for cultural heritage understanding, namely the lack of explicit evidence-centered reasoning mechanisms. Existing approaches typically treat visual evidence as a post hoc explanation rather than an intrinsic com...

Encoder Choice Outweighs Modular Refinement in U-Net Architectures for Globally Distributed Coseismic Landslide Segmentation

Rapid post-earthquake landslide mapping is critical for emergency response, yet the quantitative hierarchy of architectural choices in U-Net-based segmentation remains unresolved. Using the Globally Distributed Coseismic Landslide Dataset (GDCLD; nine earthquakes, four continents...

Multi-Year Variation Characteristics and Driving Forces of Groundwater Levels in the Yibin Area, Southern Sichuan, China

To support groundwater protection and sustainable utilization in southern Sichuan, this study aims to clarify the multi-year variation characteristics of groundwater levels (GWLs) and identify their main driving factors in the Yibin region. In this paper, 2019–2024 GWL monitoring...

Health-related fitness mediates the longitudinal association between engagement in fundamental movement skill-related activities and social interaction abilities in the ABCD study

Under the Know it-Do it-Love it (KDL) framework, structured physical activity is expected to support adolescents’ social development. Guided by the KDL concept, this study examined the longitudinal association between engagement in fundamental movement skill (FMS)-related activit...

Gamma-Irradiation-EnhancedReduction of 99Tc(VII) and Re(VII) by Natural Pyrite

Abstract Reductive immobilization of 99Tc(VII) to sparingly soluble TcO2-type phases is a key process limiting 99Tc transport in the environment. However, the reactivity of natural pyrite toward 99Tc(VII) under conditions relevant to nuclear waste repositories remains poorly unde...

Mechanism and Application of Biochar as an Electron Shuttle in the Remediation of Soil Pollutants

Biochar has attracted increasing attention in soil remediation due to its porous structure, abundant surface functional groups, and environmental compatibility. Beyond its conventional roles as an adsorbent and soil amendment, biochar has increasingly been recognized as an electr...

Landslide Susceptibility Assessment Using a Machine Learning Model with VAE-CDM Sample Augmentation: A Case Study of Southeastern Xizang

Landslide susceptibility mapping in alpine regions with limited data has two persistent obstacles: too few recorded landslide cases and the questionable reliability of non-landslide samples. We address these issues with a hybrid generative framework—a Variational Autoencoder (VAE...

Effects of Lanthanum Doping on Structural Evolution, Morphological Features, and Flux Pinning in FeSe0.5Te0.5 Single Crystals with Machine Learning Assistance

Abstract Single crystals of La x Fe 1− x Se 0.5 Te 0.5 ( x = 0, 0.02, 0.04, 0.06, 0.08) were grown using the self-flux method. A systematic investigation of the effects of La addition revealed changes in the lattice parameters, with the lattice parameter a decreasing and the latt...

Seeking Stability Amid Uncertainty: The Impact of Climate Policy Uncertainty on Corporate Innovation Resilience

As the global sustainability agenda and carbon neutrality goals continue to advance, climate policy has become an important governance instrument for promoting firms’ green and low-carbon transformation. Adjustments in policy timing, regulatory intensity, and enforcement arrangem...

Joint MLP and Token Pruning for Personalizing Vision Transformers

ViTs have achieved excellent performance in image recognition tasks, but their large parameter counts and high computational complexity limit their deployment on resource-constrained devices. Most existing ViT pruning methods adopt class-agnostic pruning strategies, which fail to...

Preparation Method of Simulated Deep Sandstone Materials Based on Dual Equivalence of Principal Components and Mechanical Properties, and Quantitative Evaluation of Simulation Effectiveness

Intact deep sandstone cores are scarce, heterogeneous with poorly repeatable, limiting systematic laboratory studies of deep-rock mechanical behavior. This study selected dense sandstone recovered from 1050 m in the Pingdingshan mining area as the prototype system for the develop...

Assessing Differentiated Land Supply Performance Under China’s Major Function-Oriented Zone Strategy: A Scale–Structure–Efficiency Perspective

China launched the major function-oriented zone planning (MFZP) strategy in 2010 to address regional imbalances and resource–environment pressures through differentiated regulation. Using county-level data from 2010 to 2020, this study develops a “scale–structure–efficiency” fram...

Molecular-level insight into water adsorption and projected atmospheric water harvesting performance in a hydrolytically stable MOF

Sorption-based atmospheric water harvesting (AWH) promises a solution to the global challenge of water scarcity and, despite the increasing number of promising AWH materials, there remains a need for insight into pore-filling mechanisms and the hydrolytic stability of such desicc...

Climate Justice in Sports: Quantifying the Thermally-Induced Competitive Inequality

This study examines the impact of thermal stress on competitive inequality in professional football. Using a labor productivity framework and a dataset of over 39,000 matches from the Big Five European leagues (France, England, Germany, Spain, and Italy) spanning 1996 to 2019, we...

Catalytic Regulation of Reaction Networks in High-Concentration 5-Hydroxylmethylfurfural Oxidation

Abstract The selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is a key catalytic transformation for the production of renewable polymers. Although near-quantitative FDCA yields can be achieved under dilute conditions, increasing substrate...

Research on the dynamic evolution of competitive and water-film-mediated wear mechanisms of the carbon strips in the pantograph-catenary system at low temperature

Abstract To investigate the evolution of wear mechanisms in carbon strips at low temperature, this study conducted comparative friction tests on copper-impregnated carbon strips at room temperature (25 °C) and low temperature (-20 °C). To replicate operating conditions, the exper...

Early Jurassic Granitoids in the Pairigang Area, Tibet: Implications for the Evolution of the Neo-Tethyan Ocean and the Accretion of Juvenile Crust in the Southeastern Lhasa Block

The Jurassic represents one of the most significant periods within the widespread Mesozoic magmatism of the Lhasa Block; however, its formation age and petrogenesis have led to controversy over the deep genetic mechanisms responsible for magmatism. To address this, we present new...