Hohai University

Anthropogenic aerosol reduction contributes to faster flash drought onset in a changing climate

Flash droughts have emerged as severe hazards, posing growing challenges to natural and socioeconomic systems, yet the influence of recent aerosol reductions on their onset remains unclear. Here, we investigate the impacts of aerosols and their underlying mechanisms using multi-s...

Spatiotemporal Variation Analysis of Groundwater Storage in Huaihe River Basin Based on GRACE and Interpretable Machine Learning

Groundwater represents an essential water resource across the Huaihe River Basin, and its sustainable use is important for maintaining regional water resource security. This study systematically examined the long-term evolution, seasonal variability, and major drivers of groundwa...

Fixed‐Time Disturbance Attenuation Formation Control for Nonholonomic Mobile Robots With Uncertain Sliding

ABSTRACT In this article, a fixed‐time formation control strategy that combines curvature tracking method is proposed for multiple nonholonomic mobile robots with uncertain sliding. Considering the skidding and slipping, a curvature tracking motion law is derived by sorting out t...

Virtual boundary integral neural network for three-dimensional exterior acoustic problems

This paper presents a virtual boundary integral neural network (VBINN) for three-dimensional exterior acoustic problems. The method introduces a virtual boundary within the scatterer or vibrating body and represents the associated source density using a neural network. Based on t...

Effects of Sensor-Guided Irrigation on Post-Harvest Soil Nutrient Status, Yield, and Resource Use Efficiency in Greenhouse-Fertigated Tomato: A Single-Season Case Study

Most evidence on integrated water–fertilizer management for greenhouse tomatoes comes from arid and semi-arid systems; whether sensor-guided irrigation provides comparable benefits under humid subtropical conditions, where rainfall does not enter the greenhouse water balance, is...

Biaxial response of buried pipelines to arbitrary excavation-induced ground-movement fields: A pipe–soil interaction solution with Bayesian updating from sparse field settlement monitoring

Ground movements induced by deep excavation impose simultaneous vertical and horizontal deformation on adjacent pipelines. Excavation pipeline solutions commonly prescribe a specific movement function, and field monitoring generally provides sparse settlement data. This study dev...

Design and implementation of sheep posture estimation algorithm based on skeletal keypoint localization

Automated sheep posture recognition can provide posture-related behavioural information for precision livestock monitoring. Manual video observation is labour-intensive, and contact sensor-based methods may require specialized installation. This study developed a non-contact shee...

Analysis of soil-foundation-structure interaction based on a novel lumped parameter model with improved Legendre polynomials

A lumped parameter model (LPM) adopting frequency independent spring, damper and inerter is developed in this work. It can effectively characterise frequency-dependent impedance within the time domain, thus supporting direct time-domain seismic analysis for structures with soil s...

Spatial variability and drivers of N2O emission responses to nitrogen fertilization across agricultural regions in China

Nitrogen fertilization is an important source of agricultural N 2 O emissions, yet the spatial variability in nitrogen-induced N 2 O responses and its underlying drivers across agricultural regions in China remain insufficiently understood. This study conducted a meta-analysis of...

Local creative culture environment and corporate digital transformation: evidence from cultural and creative industry parks in China

Based on a sample of Chinese A-share listed firms from 2009 to 2023, we investigate the influence of the local creative culture environment on corporate digital transformation (DT). The results show that a vibrant creative culture environment is positively related to firms’ DT, p...

Does public transport fare discount policy affect travel choices of the elderly? An empirical study based on Chongqing, China

As population aging accelerates, public transport fare discounts have become a crucial tool for cities to address the mobility needs of the elderly. This study aims to optimize such policies by examining the psychological decision-making process of elderly bus users, using survey...

Fixed-Sequence Confidence-Interval Calibration for Finite-Sample Selective Risk Control

Selective prediction requires a statistically reliable rule for deciding which model outputs can be returned while controlling the error rate among accepted predictions. In large language model (LLM) applications, uncertainty scores provide useful ranking information, but directl...

Seeing Is Coding: On the Effectiveness of Vision Language Models in Code Understanding

Large Language Models (LLMs) have achieved remarkable success in source code understanding, yet as software systems grow in scale, computational efficiency has become a critical bottleneck. Currently, these models rely on a text-based paradigm that treats source code as a linear...

From Point Clouds to IFC-Compliant BIM: A Pipeline for Geometric Modeling of Arch Dam Bodies

Abstract Dams are vital infrastructure for water resource management, flood control and hydropower generation, yet their long-term safety is increasingly challenged by aging structures and limited monitoring practices. As-built building information modeling (BIM) provides precise...

A High‐Performance Dibenzothiophene‐Terminated Self‐Assembled Hole Transport Monolayer for Perovskite Solar Cells

ABSTRACT Self‐assembled hole transport monolayers (SAMs) have become indispensable components of high‐performance inverted perovskite solar cells (PSCs). SAMs not only govern the interfacial hole extraction kinetics but also influence the crystallization quality of the overlying...

Carbon Emission Network Centrality and Agricultural Green Total Factor Productivity: Evidence from the Yangtze River Delta, China

Cross-regional greenhouse gas emission linkages have contributed to the formation of interconnected carbon emission networks among cities. However, whether a city’s position within such networks influences agricultural green total factor productivity (AGTFP) remains insufficientl...

Underestimated rice yield risks from extreme cold in China

Despite global warming, intensifying extreme cold anomalies present a significant paradox for global food security. While heat-related risks are well-documented, the impact of extreme cold on crop yields remains a critical yet understudied vulnerability in climate change assessme...

Regulatory penalties and ESG outcomes: a nonlinear governance mechanism

This study examines the nonlinear relationship between environmental penalty intensity and corporate ESG performance, as well as the contextual conditions under which this relationship changes. Using panel data for Chinese A-share listed companies from 2013 to 2023, we employ a f...

The impact of population aging on household carbon emissions and its heterogeneity: evidence from CGSS 2018 data in China

Abstract Background Against the backdrop of the “Dual Carbon” goals and accelerated population aging, changes in household demographic structure may influence household carbon emissions; however, existing research has not fully examined these effects and their heterogeneity at th...

Experimental and numerical investigation on hydraulic characteristics of the water-retaining weir in the long-distance water conveyances system

Water-retaining weirs are key local flow-control structures in long-distance water conveyance systems, and their hydraulic performance is of great significance for maintaining flow depth, improving conveyance conditions, and ensuring operational safety. This study aimed to optimi...