China Ocean Shipping (China)

Optimizing Sequential Competitive Facility Location and Attractiveness Design

We consider a sequential competitive facility location and attractiveness design problem (S-CFLAP) in which the leader and follower sequentially decide on the location and attractiveness design (e.g., building area) of new facilities to maximize their market shares. Customer dema...

Task-Adaptive Reinforcement Learning for Unified OCR in Maritime and Complex Documents

Maritime logistics relies on documents that combine dense multilingual text, irregular layouts, and task-specific output schemas, requiring operational systems to recover text, structure, location, and semantics. We trained Hi-Dolphin-OCRusing a task-adaptive reinforcement-learni...

Effects of a Self-Developed Composite Modifier on the Compressive Strength, Shrinkage Behavior, and Microstructure of Cement-Stabilized Macadam

Cement-stabilized macadam is widely used in pavement base layers but is susceptible to shrinkage-induced cracking. This study evaluated a self-developed composite modifier, designated DX-3, with the aim of improving volumetric stability while maintaining compressive strength. Mix...

Life cycle cost-oriented energy management and configuration co-optimization for fuel cell hybrid ships

Fuel cell hybrid ships (FCHS) face challenges in balancing economic optimization, power allocation, and capacity configuration. This study develops an energy management strategy coupled configuration optimization framework integrating adaptive cut-off frequency and low-pass filte...

A two-stage weather routing strategy for container ships with container loss prevention

Container loss accidents caused by severe weather pose a serious threat to the reputation of shipping companies and damage the marine environment. However, most existing ship weather routing strategies only focus primarily on economic performance, or ensure navigation safety base...

Dynamic responses and local load distribution of a twin-barge topside transport system: A numerical and experimental study

Multi-barge floatover operations enable topside installation and decommissioning, but local force-unit loads remain insufficiently understood. Frequency- and time-domain analyses and model-scale experiments investigate coupled motions and local Deck Mating Unit (DMU) forces. Beca...

A copula-based poisson-mixed multinomial logit model for joint analysis of vessel incident types and fatality counts: Evidence of tail dependence from commercial fishing data

Commercial fishing remains one of the most hazardous occupations worldwide, with high fatality rates and complex incident dynamics, making the joint understanding of incident type and fatality frequency critically important. This study addresses the limitation of conventional app...

Ship Docking Motion Prediction and Collision-Risk Early Warning Using a Physics–SVR Model

Reliable collision-risk warning during low-speed ship docking requires accurate and efficient hydrodynamic prediction. This study develops a physics-SVR (support vector regression) framework combining a three-degree-of-freedom maneuvering model with three SVR models that learn re...

Benchmarking strategic trade-offs: financial and sustainability performance in the Portuguese metal wholesale sector

Purpose This study aims to examine how firms manage competing performance objectives by analysing the trade-offs associated with financial structure, sustainability engagement and export activity. The study explores how strategic decisions intended to improve specific performance...

Synergy Between Air Pollution and Carbon Emissions of On-Road Mobile Sources, Evidence from a Typical Southwestern Region in China

The transport sector has emerged as a significant source of greenhouse gases and airborne pollutants. However, few studies have carried out a comprehensive assessment of the synergistic benefits between air pollutant and carbon emission reductions that account for the unique regi...