Zhengzhou Railway Vocational & Technical College

Distinct dual-interface strengthening mechanisms of KH560 and EVA in PVA fiber-reinforced rubberized concrete

Previous studies have shown that KH560 and ethylene-vinyl acetate (EVA) can modify rubberized cementitious interfaces, but their effects on the coexisting rubber/cement and PVA fiber/cement interfaces remain unclear. Here, two parallel L9 (3 4 ) orthogonal designs were establishe...

Digital currency money laundering identification model based on graph structure and transformer self-supervised learning

Digital currency money laundering detection faces two major challenges: scarce labeled illicit transactions and complex fund-flow topologies. To address these issues, this study proposes GT-SSL, a graph-structured Transformer self-supervised learning framework for cryptocurrency...

Bayesian belief-to-action planning for truck–drone emergency routing

Post-disaster truck–drone delivery is planned while road access is only partly known and may recover during the response. Existing disruption-aware routing models usually treat accessibility as fixed before planning, which limits their ability to use field confirmations and comma...

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...

Spatiotemporal characteristics and trends of combined PM2.5 and O₃ pollution across the central plains: a decadal analysis of Henan, China (2016–2025)

The co-occurrence of fine particulate matter (PM 2.5 ) and surface ozone (O₃) pos es an environmental challenge to high-quality development in China. Henan Province, a major agricultural and industrial center in the Central Plains, faces particular difficulties in coordinating PM...

ACR-Nav: Localization-Free Corridor Navigation via Action-Conditioned Scalar-Range Evolution

Mapless navigation often removes global maps while retaining localization-derived goal vectors or bearings. We study a stricter setting in which a mobile robot observes only local LiDAR, scalar goal range, and short histories of executed actions; neither pose nor goal direction i...

Application of targeted next-generation sequencing in bronchoalveolar lavage fluid testing for pathogen identification in pulmonary infections

Pulmonary infections remain a leading cause of morbidity and mortality worldwide. However, conventional microbiological tests (CMTs) frequently fail to identify the causative pathogens, owing to their limited sensitivity, prolonged turnaround times, and inherent inability to dete...

Simulation-Based Performance and Limitations of Photovoltaic and Solar Water Heating Systems in a Passive-Designed Rural House

Rural houses in cold regions of China usually have high energy demands, particularly for space heating and domestic hot water. Passive design can reduce building energy demand, but additional renewable energy systems are still needed to improve on-site energy supply. This study e...

Breathing ferroelectricity, flat-bands and multiple chiral phonons in van der Waals breathing kagome Nb3Cl8

Van der Waals layered Nb3X8 (X=Cl, Br, I) are predicted to integrate multiple intriguing physical properties, notably multiferroicity and flat-bands that are highly promising for novel-principle memories and superconductors. However, direct experimental validations such as the pr...