Chengdu University of Technology

Elevation-dependent regulation of alpine vegetation productivity by snow cover and grazing on the Tibetan Plateau under a warming–wetting climate

Grassland productivity on the Tibetan Plateau (TP) is fundamental to regional carbon cycling and ecosystem functioning and is strongly regulated by snow dynamics and grazing under a changing climate. However, the mechanisms by which alpine grassland productivity responds to inter...

Unveiling the oxygen-mediated hopping and defect effects of H+ in monoclinic ZrO2: A DFT+KMC study

During the aqueous corrosion of zirconium alloy cladding, the diffusion behavior of hydrogen within the oxide layer is a critical factor governing the hydrogen uptake rate. As the migration mechanisms of hydrogen in monoclinic zirconia (m-ZrO2) and the influence of defects on its...

The unique role of bromine in NaF crystallization of photo-thermo-refractive glass

Photo-thermo-refractive (PTR) glass generates a refractive-index modulation through photothermally induced NaF nanocrystallization, making it essential for volume Bragg gratings. The halide co-dopant determines how silver nanoparticle templates (Ag NPs@AgX, X = Cl, Br, I) steer N...

Molecular Insights into the Effect of Nanoscale Surface Roughness on CO2 Hydrate Nucleation: Implications for Carbon Sequestration

Abstract Hydrate-based CO2 sequestration is a promising carbon storage technology, but its practical application is hindered by slow formation kinetics. Understanding the nucleation mechanism at a molecular level is crucial for optimizing this process. Herein, systematic microsec...

Transition of friction properties and failure mechanisms of metal-impregnated carbon strip induced by competition between current-induced lubrication and arc erosion under varying current densities

With the increasing speed of high-speed railways, elevated current-carrying density exacerbates wear failure of metal-impregnated carbon strips in the pantograph-catenary system. This study focuses on the competitive interaction between current-induced lubrication and arc erosion...

Nuclear and Renewable Energy Transitions for Global Sustainability: Exploring the Interactions of Tourism Development and Economic Drivers

ABSTRACT In light of exacerbating climate change issues, recent environmental policy reforms have attempted to balance economic growth and environmental conservation to foster a sustainable development transition. To further debate the scope of decarbonization policies, this stud...

Synergistic Self-Healing and Seepage Resistance of Basalt Fiber-Reinforced Microbial Concrete for Pressurized Diversion Tunnel Linings

Concrete linings in pressurized diversion tunnels are susceptible to cracking and seepage under sustained hydraulic pressure and saturated service conditions, threatening their long-term durability, water-conveyance reliability, and operational safety. To improve the autonomous r...

Effects of Relative Rigidities of Backbone and Arms on Conformational and Dynamical Characteristics of Branched Ring Polymer in Shear Flow

Abstract We investigate how the relative rigidities of the backbone and arms influence the conformational and dynamical properties of branched ring polymers (BRPs) under steady shear flow, using a hybrid mesoscale simulation approach that combines multiparticle collision dynamics...

Preparation of Amino Acid-Functionalized Carbon Nanotubes and Study of Their Carbon Dioxide Capture Performance

Abstract In postcombustion capture technology, the amine absorption approach is currently the most economical and widely applied method. However, the desorption process still requires a large amount of energy. Therefore, we have prepared a solid acid catalyst, Arg-MWCNTs, aiming...

Nuclear tests at Mt. Mantap have reactivated intraplate faults

Underground nuclear explosions typically produce short-lived seismic sequences that decay rapidly after testing ceases. By contrast, seismicity near the Punggye-ri nuclear test site at Mt. Mantap in the Democratic People’s Republic of Korea has persisted and intensified for years...

Hydrocarbon Generation Kinetics and History of the Middle Jurassic Yangye Formation in the Southwestern Tarim Basin Piedmont, Northwest China

Abstract Shale gas discovered in the Middle Jurassic Yangye Formation (Well TNY1) confirms the hydrocarbon generation potential of the Southwestern Tarim Basin Piedmont (SWTBP), yet its hydrocarbon generation patterns, processes, and potential require clarification. This study co...

Nonlinear Association and Spatial Heterogeneity Between Urban Vitality and Built Environment: Evidence from the Main Urban Area of Chengdu

Urban vitality (UV) is the core index to measure the quality and sustainability of urban development. Accurately analyzing the complex association mechanism between UV and built environment (BE) is critical to urban planning practice. Focusing on the main urban area of Chengdu, t...

TPHH: a long-term (1901–2023) high-resolution (1∕30°) near-surface humidity dataset for the Tibetan Plateau generated via spatial downscaling based on hybrid-structure deep learning

The Tibetan Plateau acts as the “Asian Water Tower” and faces regional amplified warming compared to the global climate change baseline. Given the Tibetan Plateau's pronounced alpine terrain, i.e., significant elevation gradients within short horizontal distances, studies on clim...

Phytochemical Molecular Engineering Reconfiguring Solvation Chemistry and Interfacial Energy for Highly Reversible and Long‐Lifespan Zn‐Ion Batteries

ABSTRACT Severe hydrogen evolution, sluggish desolvation kinetics, and chaotic dendritic growth severely impede the commercialization of aqueous zinc‐ion batteries. Herein, a sustainable phytochemical molecular engineering strategy is proposed by introducing a natural chenpi extr...

Two‐Photon Laser Writing of Sub‐Diffraction Three‐Dimensional Luminescent Perovskite Architecture Embedded in Non‐Luminescent Perovskite

ABSTRACT As emerging high‐performance optoelectronic materials, metal halide perovskites display outstanding advantages in micro‐nano optoelectronic integration. However, high‐precision multidimensional processing and on‐demand dynamic modulation of the luminescent properties of...

Comparative Evaluation of Agronomic Traits in Various Vetch Genotypes

Abstract The present research, “Evaluating the agronomic performance of various vetch genotypes,” was conducted at the Fodder and Forage Crop Section at the National Agricultural Council (NARC), Islamabad, Pakistan. The basic objective of this trial was to compare the yield and r...

Ecosystem-Service Changes During Ecological Restoration and Urban Expansion in a Medium-Sized Hilly City: A Case Study of Nanchong, China

Understanding how ecological restoration and urban expansion jointly reshape ecosystem-service patterns remains challenging in medium-sized inland hilly cities undergoing rapid land-use change. Nanchong, a representative hilly city in southwestern China, provides an opportunity t...

Time‐State‐Dependent Reliability Analysis of Wheel‐Rail Contact Parameter Degradation for High‐Speed Trains

ABSTRACT Wheel‐rail contact parameters are essential to high‐speed‐train stability, but their stochastic degradation complicates reliability analysis. A time‐state‐dependent reliability method is developed for complex thresholds defined implicitly or probabilistically. Different...

Thermal Shock Resistance Enhancement of Alumina-Based Castables by Incorporating Porous Alumina Spherical Aggregates

Chrome-containing corundum–spinel castables are the preferred materials for ladle purging plugs due to their excellent slag resistance, high mechanical strength, and good volume stability. However, their poor thermal shock resistance often leads to transverse cracking or thermal...

Tectonic escape from the Pangean megamonsoon via oceanic isolation modulated low-latitude hydroclimate

The assembly of the Pangea supercontinent during the late Paleozoic ice age drove Earth’s most intense megamonsoon. Although climate models predict a humid low-latitude eastern Pangean margin, widespread red-bed records indicate extreme seasonal oxidation, creating a conspicuous...