China Railway Group (China)

Experimental study of the startup and heat-transfer performance of a novel two-phase closed thermosyphon with an internal phase-separation structure

Two-phase closed thermosyphons (TPCTs) are widely used as active cooling devices in permafrost engineering. Countercurrent transport of rising gas and returning liquid through a shared flow channel can impede working-medium circulation and constrain heat-transfer performance. Thi...

Seasonally Adaptive Natural Ventilation for Sustainable and Energy-Efficient Large-Space Railway Stations in Hot-Summer and Cold-Winter Regions: A Case Study of Chengdu Station

The rapid expansion of high-speed railway networks has increased the operational energy demand and indoor overheating risk of large-scale, high-volume railway station buildings. Natural ventilation is a climate-responsive passive strategy that can improve indoor environmental qua...

Self‐Assembly of Organic–Inorganic Copolymers Toward Bio‐Inspired Cementitious Composites

ABSTRACT Refined by millions of years of rigorous evolution, highly mineralized biological materials have perfected organic–inorganic self‐assembly to break the traditional trade‐off between strength and damage tolerance. Their rigid‐flexible precursor architectures motivate an o...

Multiscale Mechanisms Governing the Performance Evolution of MgO-GGBS-Stone Powder Lightweight Foamed Soil Under CO2 Curing

To facilitate low-carbon construction technologies in subgrade engineering, this study proposes a carbon-sequestering lightweight foamed soil (C-LFS) using an all-solid-waste binder system in which reactive magnesium oxide (MgO), ground granulated blast-furnace slag (GGBS), and s...