National Development and Reform Commission

Exploring calibration-free luminescence thermometry with Mn 4+ anti-Stokes/Stokes emission

Mn 4+ -activated phosphors offer a unique possibility of calibration-free primary luminescence thermometry using the ratio of anti-Stokes to Stokes (AS/S) vibronic emission lines of the 2 E → 4 A 2 transition. Previous work used the AS/S emission of Mn 4+ for thermometry but alwa...

High Sewage Sludge Loading Drives N2O-Dominated Warming Potential and Destabilizes Soil Microbial Networks during Ryegrass Cultivation

Abstract The application of sludge as a fertilizer contributes to greenhouse gas (GHG) emissions, but the associated microbial and geochemical mechanisms across sludge application rates remain unclear. A field experiment evaluated three sludge application rates (0, 3, and 30 kg/m...

Evolution and Action Mechanisms of Dual Trade-Offs Under Water-Saving Improvement in Arid Irrigated Zones: Evidence from Ningxia

While continuously promoting agricultural water-saving and efficiency improvement, Ningxia is confronted with problems such as deepening groundwater tables and growing ecological vulnerability. Exploring the trade-off relationships and their evolutionary characteristics between s...

Fisher-Information-Based Cooperative Sensor Node Pre-Selection for UWB-Aided GNSS-Denied UAV Swarm Localization Under Heterogeneous Ranging Noise

Ultra-wideband (UWB) inter-node ranging provides relative-distance constraints for cooperative localization in GNSS-denied UAV swarms, but dense candidate networks can exceed the available ranging slots, communication bandwidth, computation, and energy. This paper proposes a Fish...