Xinjiang University

Medium-Entropy LDH-Driven Electronic Coupling of MnO x for Preferential Oxidation of Formaldehyde

Abstract Preferential oxidation of formaldehyde (HCHO) in natural gas engine exhaust is pivotal to prevent NH3–SCR catalyst deactivation and inhibit highly toxic hydrogen cyanide (HCN) formation. Although manganese-based catalysts exhibit prominent activity for HCHO oxidation, co...

Coordinated sizing and operation of wind-solar-hydrogen system: Coupling stack-level dispatch and state machine with IMOPSO

This study develops a coordinated sizing-operation framework integrating proton exchange membrane stack-level dispatch, a dwell-time state machine, and improved multi-objective particle swarm optimization (IMOPSO). Embedding stack-level logic into candidate evaluation links equip...

Calibration and crop-induced footprint dynamics of cosmic-ray neutron sensing in maize cropland

Cosmic-ray neutron sensing (CRNS) provides continuous, non-invasive estimates of field-scale soil water content, but retrieval performance depends on site calibration, crop growth, and temporal variation in the sensing footprint. This study combined five field calibration campaig...

Stability of nonlinear systems with delayed saturated impulsive control and its application to synchronization of coupled neural networks with switching topology

This study is presented on the local exponential stability (LES) of a class of nonlinear systems with discrete and distributed delays, using an impulsive control strategy that incorporates both input delays and actuator saturation. By integrating Lyapunov function theory, the Raz...

Surface-Token-Guided Query Refinement for Weakly Supervised RGB Apple Defect Sensing and Visible Surface-Condition Scoring

Low-cost RGB imaging is attractive for postharvest apple grading, yet an image-level defect label does not reveal where damage occurs or how much of the visible surface it affects. This study examines whether folder-labeled images can support defect recognition, weak localization...

Functionalized Olefin-Linked Covalent Organic Frameworks for Selective Mercury Capture and Recovery from Vinyl Chloride-Rich Gas Streams

Abstract The calcium carbide-derived acetylene hydrochlorination route for vinyl chloride monomer (VCM, C2H3Cl) production remains a major source of mercury consumption and emission owing to its reliance on HgCl2/activated carbon catalysts. Selective removal of elemental mercury...

Molecular-scale origins of shear-thinning in SiO₂-Al₂O₃-CaONa₂O slag: High-temperature rheology and non-equilibrium molecular dynamics

SiO₂-Al₂O₃-CaO Na₂O slag represent the basic constituents of high-alkali coal ash, and its non‑Newtonian rheology critically affects ash deposition and transport. In this study, their shear‑thinning behavior was investigated by combining high‑temperature rheometry (0–500 s⁻¹) wit...

Thermal conductivity characteristics and predictive modeling of rubber sand composite geomaterials under multiple influencing factors

Waste tire rubber has low density, high elasticity, and excellent fatigue resistance. When mixed with sand, it forms a sustainable composite geomaterial in which thermal conductivity (TC) governs thermal performance. This study systematically investigated the TC of rubber-sand co...

Digital Transformation and Operational Efficiency in Petroleum Enterprises: Mechanisms and Panel Evidence from Chinese A-Share-Listed Firms, 2008–2024

Amid the rapid development of the digital economy and China’s carbon-peaking and carbon-neutrality goals, digital transformation has emerged as a critical pathway for petroleum enterprises to improve quality and efficiency. However, the mechanisms linking digital transformation t...

On the Fourier transforms of rational, trigonometric, and inverse trigonometric functions

In this paper, we derive the Fourier transforms of arbitrary rational functions in the sense of distributions by means of Jordan's lemma and contour integration. In addition, we obtain the Fourier transforms of all trigonometric functions in the sense of distributions, and the po...

TiO2/Saponite composite catalyst for ultraviolet photocatalytic ozonation of coal chemical wastewater

In ultraviolet photocatalytic ozonation (UV-PCO 3 ) systems, the limited ozone adsorption capability of conventional catalysts restricts the synergistic coupling between catalytic ozonation and photocatalysis. In this study, a TiO 2 /saponite (TiO 2 /Sap) composite catalyst was s...

Structural diagnosis and evolution of urban resilience in dryland oasis urban agglomerations from an eco-immunological perspective

Dryland oasis urban agglomerations face increasing drought risk, but gains in long-term adaptive capacity may not translate into stronger structural resilience because additive indices allow strong dimensions to offset weak ones. This study developed a partially non-compensatory...

Effects of initial water content and Na2SO4 on pore structure and radon exhalation of dried remolded loess

The pore structure of loess directly governs the storage and migration of radon. In this study, remolded loess specimens were prepared at four initial water contents (8%, 10%, 12%, and 14%) and five Na 2 SO 4 contents (0%, 0.4%, 0.8%, 1.2%, and 1.6%). Low-temperature nitrogen ads...

Mechanical, wear and corrosion properties of refractory high-entropy alloys based on different Al and Hf contents

TiZrHfNb-based refractory high-entropy alloys (RHEAs) possess promising comprehensive properties, yet the high cost of Hf restricts their engineering applications. In this study, Ti 30 Zr 30 Hf (16-x) Nb 24 Al x (x = 0, 2, 4, 6, 8) RHEAs prepared via vacuum arc melting were inves...

RCA–RAP Hot-Mix Asphalt Mixtures: Mass–Volume Non-Equivalence and Recycled Binder Availability in Mix Design and Performance Interpretation

Combining recycled concrete aggregate (RCA) and reclaimed asphalt pavement (RAP) in hot-mix asphalt (HMA) creates a coupled aggregate–binder design problem. This review critically synthesizes RCA–RAP studies, supplemented by relevant single-material evidence, to clarify how mater...

Cornus mas L. Ameliorates Hepatic Insulin Resistance in High-fat Diet-induced Diabetic Mice

Background Type 2 diabetes (T2D) remains a prominent chronic metabolic disease characterized by hyperglycemia worldwide. Insulin resistance is the primary risk factor contributing to T2D development. Cornus mas L. is a natural product shown to play a regulatory role in metabolic...

Crack propagation mechanisms in single-fractured red sandstone under freeze–thaw cycles considering water content and fracture inclination

To elucidate the coupled effects of water content and fracture inclination on crack propagation and failure evolution in single-fractured red sandstone under freeze–thaw conditions in cold regions, freeze–thaw cycling–uniaxial compression tests were conducted on specimens with va...

Stereodivergent Synthesis of C -Glycosides from Glycals by Ni-Catalyzed Cross-Hydrocarbonylation of Alkenes

Abstract C-Glycosides always significantly improve the physicochemical properties and pharmacokinetic characteristics of the native O- and N-glycosides and are one of the most powerful strategies for carbohydrate-based drug discovery. However, direct access to C-glycosides with c...

Recovering the Fractional Order and an Initial Value Simultaneously in a Time-Fractional Diffusion-Wave Equation

For a one-dimensional time-fractional diffusion-wave equation, we investigate joint recovery of its fractional order and the initial velocity from measurements taken at one interior point. Uniqueness is proved through analytic continuation, Laplace transforms, an integral mean va...

Synergistic Effect of MOF-Derived Porous In2O3 and High-Entropy Alloy for Enhanced Room-Temperature Ammonia Sensing

Abstract High-performance room-temperature ammonia (NH3) sensors are highly desirable for environmental monitoring and noninvasive chronic kidney disease diagnosis via breath analysis. Structurally advantageous, metal–organic framework (MOF)-derived metal oxides combined with low...