Xihua University

Reliability Analysis of TPMS Structures Considering Uncertainties in Operating Conditions

ABSTRACT Triply periodic minimal surface (TPMS) porous structures show considerable promise for lightweight load‐bearing implants. To address the fatigue reliability of radially graded gyroid‐type TPMS Ti‐6Al‐4V scaffolds under unavoidable uncertainties in loading and material pr...

Influence of operating parameters on blade wear characteristics of helical vane multiphase pump

To address blade wear of helical vane multiphase pumps during sand-containing crude oil transportation in desert oilfields, a self-developed multi-stage pump was studied via numerical simulation (Discrete Phase Model, DPM) and experimental verification. The effects of flow rate,...

Contrasting Nitrate Sources and Transport Pathways in a Connected Karst Surface Water and Groundwater System

Nitrate contamination threatens surface water and groundwater quality in karst regions, posing risks to drinking water safety and aquatic ecosystems. Strong surface water–groundwater connectivity in karst recharge areas can accelerate contaminant transport through fractures and c...

High‑Entropy Perovskite Anodes for Efficient Water Oxidation Reaction in Protonic Ceramic Electrolysis Cells

ABSTRACT Protonic ceramic electrolysis cells (PCECs) have emerged as promising energy conversion devices due to their high efficiency and environmental friendliness. However, the development of excellent anodes with high catalytic activity of water oxidation reaction, ionic condu...

An All-in-One Optical Emission Platform for On-Site Sensitive Detection of Selenium in Selenium-Enriched Food: Integrating Digestion, HS-SPME, and Microplasma OES

Abstract The narrow margin between selenium (Se) deficiency and toxicity demands rapid and reliable methods for monitoring Se levels in Se-enriched foods. In this work, we present an all-in-one optical emission platform that integrates in situ sample digestion, derivatization wit...

Superior flexibility merges high power density in single-crystal Bi2Te3 film thermoelectric generators

Developing high-performance, mechanically robust power sources is critical for wearable microelectronic networks. Flexible thermoelectric technology offers a promising solution, but the central challenge remains the synergistic optimization of mechanical flexibility and functiona...

Recycled aggregate concrete based on an improved SVM method a study on the prediction of compressive strength

The mix design of recycled aggregate concrete (RAC) has long relied on extensive trial-and-error testing, which is costly and time-consuming; moreover, existing empirical models struggle to accurately capture the complex nonlinear relationship between material components and comp...

Single-Atom Switching for Constructing a Full-Spectrum Hypochlorite-Responsive Probe Library: Screening Candidates for Water Analysis

Abstract Residual hypochlorite/hypochlorous acid (ClO–/HClO) is widely used in disinfection, yet simple assays integrating visual readout with quantitative fluorescence analysis remain limited. Herein, we report a single-atom-switching strategy for constructing a six-member, full...

Investigating the spatial distribution of China’s Dong ethnic drum towers: influencing factors and synergistic dynamics with human activity patterns

China is a quintessential multi-ethnic integrated nation, where extensive cultural heritages have emerged through the process of ethnic convergence. The Dong ethnic drum tower stands as a highly regarded example. Although numerous studies have thoroughly examined the spatial feat...

Optimization of China’s Urban Waste Sorting Policy Pathways from the Public Perspective Under a Multi-Party Cooperation Framework

China has experienced rapid growth in municipal solid waste generation, highlighting the need to improve the effectiveness of waste sorting governance in urban areas. As the implementation of MSW sorting policies relies heavily on public acceptance and sustained participation, ev...

Thermal Regulation of Urban Waterfront Spaces Across Functional Districts: A Multi-Scale Analysis of Morphological Influences in Chengdu, China Effect

Urban waterfront spaces play an increasingly important role in mitigating urban heat and supporting climate-resilient urban development. However, previous studies have primarily focused on individual waterfront sites or local microclimatic simulations, with comparatively limited...

Weakening Local Chemical Bonds for Enhanced Thermoelectric Performance in YbMg 2 Sb 2 Zintl Compounds

ABSTRACT Alloying is a well‐established strategy for reducing lattice thermal conductivity ( κ L ) and enhancing thermoelectric performance of materials, typically explained by the Klemens model, which describes the point‐defect phonon scattering via mass and size contrasts. Yet,...

CitraNav: A Lightweight Navigation Method Using Spatiotemporal Information Voxel Mapping and Model Predictive Path Integral Control for Complex Orchards

Canopy occlusion, dynamic vegetation, structural degeneracy, and implicit terrain risks make stable localization and task-adaptive planning difficult for resource-constrained orchard robots. This paper proposes CitraNav, a lightweight navigation method for global navigation satel...

Efficient and explainable multivariate time series forecasting: a survey of architectures, taxonomies, and open challenges

Abstract The rapid expansion of multivariate time series (MTS) data has made deep learning a central tool for forecasting across industrial and scientific domains. As these architectures move into settings such as clinical decision support, industrial monitoring, and financial ri...

Occupational identity, competence dimensions, and psychological well-being among Chinese public security personnel: a cross-sectional path analysis

Police personnel are exposed to substantial occupational stress, yet less is known about how occupational identity and different dimensions of occupational competence are associated with psychological well-being. This study examined the direct associations of occupational cogniti...

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...

Factors associated with exclusive breastfeeding at 6 weeks postpartum in Southwest China: a cross-sectional study

Breastfeeding is known to be shaped by a complex interplay of socio-demographic, medical, and psychological factors. However, there is a lack of research on the determinants of breastfeeding at 6 weeks postpartum. This study aimed to examine factors associated with exclusive brea...

Quantitative Morphological Analysis and Indicator Identification in Linear Market Towns of the Chengdu Plain of Western Sichuan

The traditional market towns of the Western Sichuan Plain, known as Changzhen, represent a distinctive form of vernacular settlement shaped by the interplay of geographical conditions, migration history, and socio-economic dynamics. In the context of rural revitalisation and inte...

A Multidimensional Framework for Traffic Accident Consequence Prediction: Integrating Multi-Objective Optimization, Explainable AI, and Causal Inference

Road traffic accident consequences are multidimensional, involving fatalities, injuries, and property loss. Existing studies have mainly focused on single outcomes, limiting the understanding of heterogeneous mechanisms across different consequence dimensions. Based on road accid...

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...