Beijing University of Posts and Telecommunications

Beyond statistical thresholds: Mapping sequential ATN cascade transitions via brain structural topography in Alzheimer’s disease

Alzheimer’s disease is widely conceptualized as a biological continuum initiated by amyloid-β (Aβ) accumulation, followed by tau aggregation and neurodegeneration. Although the ATN framework is commonly used to define disease stages, its static biomarker categories may not fully...

Polydopamine‐Mediated Interfacial Engineering of Perylene Diimide Organic Semiconductors for Photocatalytic Hydrogen Evolution

ABSTRACT Efficient and durable hydrogen evolution with PDI‐based organic supramolecular photocatalysts remains limited by insufficient surface‐active sites, structural instability and inefficient charge utilization. Here, we design a bioinspired polydopamine (PDA)‐mediated interf...

Lightweight online offline authenticated encryption for secure UAV systems

Abstract Unmanned aerial vehicles (UAVs) are rapidly being used for surveillance, environmental monitoring, disaster response, and intelligent transportation systems. However, protecting their connection remains a significant issue due to open wireless channels, severe energy lim...

Effects of proactivity, autonomy, and transparency on user perception in human-AI agent interactions

As large language model-driven AI agents evolve from generative tools into collaborative entities with autonomous capabilities, the human-AI interaction paradigm is shifting from command execution to task delegation. However, empirical evidence on how the behavioral characteristi...

Why intra- and inter-regional diversification matter: emerging-country multinational firms' geographic diversification and green technology innovations

Purpose Geographic diversification is a critical strategy for emerging market firms (EMFs) with limited domestic knowledge to support the development of knowledge-intensive green technology innovation (GTI). This study focuses on the multi-regional operations of EMFs and investig...

3D visual grounding based on active perception

3D visual grounding (3DVG) is a key capability for embodied agents, requiring a robot to localize in 3D the object referred to by a free-form language expression. Existing LLM/VLM-based approaches often make one-shot decisions from incomplete observations or invoke expensive mult...

Topology Engineering Regulates Free Volume to Decouple Efficiency‐Mechanical Performance Trade‐Off in Intrinsically Stretchable Organic Solar Cells

ABSTRACT Intrinsically stretchable organic solar cells (IS‐OSCs) hold great promise for wearable electronics, yet their development is severely hindered by the trade‐off between efficiency and mechanical robustness, remaining a critical challenge. Herein, three polymerized small‐...

Intelligent Matching Algorithm with Density-Based Clustering for UAV Swarm Networking

As an emerging and powerful technology, unmanned aerial vehicles (UAVs) have tremendous potential applications in real-time monitoring, instant communication, data transmission, and more, providing ground terminal users with more efficient services and support. In this paper, we...

Mixed‐Dimensional 1D/2D Ternary CMOS for High‐Performance Integrated Circuits

ABSTRACT Ternary logic offers a path to higher information density and lower power consumption beyond the limits of binary CMOS, yet its progress has been limited by the absence of high‐performance ternary transistors and scalable circuit technologies. Here we report a mixed‐dime...

Leaky-wave antenna design based on the Synergistic Hybrid Electric Eel Algorithm (SHEEA)

To tackle the strongly-coupled multi-objective optimization challenges in leaky-wave antenna (LWA) design, a Synergistic Hybrid Electric Eel Algorithm (SHEEA) is proposed. Built upon the Electric Eel Foraging Optimization (EEFO) framework, SHEEA integrates simulated annealing acc...

A co-optimization qubit mapping algorithm via two-stage search and bidirectional look

Abstract Current quantum devices typically lack full qubit connectivity, making it difficult to directly execute logical circuits on quantum devices. This limitation necessitates quantum circuit mapping algorithms to insert SWAP gates, dynamically remapping logical qubits to phys...

Exploring the Synergetic and Divergent Potentials of Multimodal Semantics for Feature Fusion-based Video Recommendation

Traditional multimodal video recommendation systems typically focus on semantic synergy across modalities (e.g., text, image, video) by employing attention mechanisms to weight and aggregate features, while overlooking the potential benefits of semantic divergence among modalitie...

Geometry-Informed Adaptive Time-Series Fusion of ADS-B Sensor Data for Short-Term Aircraft Trajectory Prediction

Automatic Dependent Surveillance-Broadcast (ADS-B) systems provide continuous aircraft position reports for aviation surveillance and short-term trajectory prediction. However, many data-driven predictors directly model the longitude, latitude, and altitude contained in ADS-B mes...

A partially supervised joint segmentation method for farmland and rural roads from single-class annotated remote sensing datasets

Accurate segmentation of co-existing land-cover objects in high-resolution remote sensing imagery is essential for precision agriculture and rural planning. Although multi-class datasets are increasingly available, many high-quality annotations remain task-specific, where only a...