Nanjing University of Posts and Telecommunications

A Frequency-Gated Decoupled-Synergy Network for SAR target detection

The presence of inherent speckle noise in Synthetic Aperture Radar (SAR) imagery considerably complicates the detection of diverse targets, resulting in a pronounced degradation in the performance of conventional detection algorithms. To address these issues, this letter proposes...

Message Dissemination Method with Lightweight Learning Based Link Prediction for Hybrid UASN

Underwater Acoustic Sensor Network (UASN) comprises two types of nodes: anchored nodes and floating nodes. Due to the complex movement of floating nodes and the sparse deployment of anchored nodes, the message dissemination in hybrid UASN is achieved by utilizing the intermittent...

Inverse-Designed Lithium Niobate Waveguide Crossing with Broadband Operation, Low Loss, and Compact Footprint

Waveguide crossings are fundamental building blocks of high-density photonic integrated circuits and on-chip optical routing systems. However, realizing a high-performance, compact waveguide crossing on a lithium niobate-on-insulator (LNOI) platform remains challenging because co...

Forecasting Crude Oil Futures Prices: A Stacking Model With Mixed‐Frequency Predictors, Machine Learning, and Forecast Combination

ABSTRACT Low‐ and high‐frequency data are widely used in crude oil futures price forecasting, and machine learning techniques exhibit strong performance. To enhance predictive accuracy, this study presents a stacking model that integrates mixed‐frequency predictors, machine learn...

Research Progress and Challenges of GaN‐Based Micro‐LEDs in Short‐Reach Optical Interconnects

ABSTRACT With the explosive development of the artificial intelligence industry, data centers are facing unprecedented challenges in interconnect bandwidth. Traditional electrical interconnects are gradually approaching their physical limits in terms of bandwidth and power consum...

Free Bubble-Assisted Interfacial Assembly of Amphiphilic NIR-II Small Molecules with Enhanced Fluorescence Brightness

Abstract The second near-infrared window (NIR-II, 1000–1700 nm) holds promise for in vivo bioimaging owing to its inherent advantages such as minimized background autofluorescence, reduced light scattering, and deep tissue penetration. Donor–acceptor–donor (D–A–D)-type small mole...

Noise-Enhanced Hamming Code Transmission over an Additive Gaussian Mixture Noise Channel with One-Bit ADCs

Random noise may have a positive effect on the transmission and reception of signals in some nonlinear communication systems, which is termed as stochastic resonance (SR) or noise-enhanced effect. In this paper, we investigate the performance of signals transmitted over an additi...

Intrinsic Large‐Unit‐Cell Systems for Advanced Thermoelectrics and Thermal Management

ABSTRACT The urgent demand for efficient thermoelectric conversion and precise heat management technologies drives the search for materials capable of simultaneously optimizing often‐conflicting electronic and thermal transport properties. Intrinsic large‐unit‐cell (LUC) systems,...

Observation of Magnetic‐Anisotropy Crossover and High‐Temperature Skyrmions in the Dirac Magnet Fe 3 Ge with a Distorted Kagome Lattice

ABSTRACT Topological materials that simultaneously host robust high‐temperature skyrmions and nontrivial electronic band structures have attracted tremendous interest owing to their distinctive advantages for both fundamental research and prospective technological applications. H...

Engineering Li + Kinetic‐Buffering and Anion‐Anchoring Interphase via One‐Step Sequential In Situ Polymerization for Stable Solid Li Metal Batteries

ABSTRACT The pursuit of high‐energy solid‐state Li metal batteries is hindered by unregulated Li + deposition kinetics at the electrolyte/anode interface. Current research generally focuses on enhancing bulk ionic conductivity, often overlooking the critical need to engineer inte...

Enhancing Shadow Fading Mitigation with RIS Using Two-Dimensional Orthogonal Pattern Division Multiple Access

This paper addresses multipath interference introduced by reconfigurable intelligent surface (RIS) in mitigating shadow fading in wireless communication systems. To tackle this, we propose the use of two-dimensional orthogonal pattern division multiple access (OPDMA) with optimal...

Unlocking intrinsic TADF in flexible crystalline covalent organic frameworks through nanopore confinement design

Covalent organic frameworks (COFs) combine structural precision with synthetic versatility, yet their crystalline lattices intrinsically waste 75% of electro-generated excitons as non-emissive triplets. Thermally activated delayed fluorescence (TADF) could harvest these triplets,...

Radiotherapy-induced immunity is real but incomplete: nano-immunoadjuvants as immune amplifiers in radioimmunotherapy

Abstract Radiotherapy (RT) can initiate antitumor immunity through immunogenic cell death, tumor-associated antigen release, and innate immune engagement, but these responses are often too weak and transient to achieve durable systemic tumor control. This perspective identifies i...

Hierarchical Fuzzy Adaptive Control for Cooperative Pursuit‐Evasion Formation in Marine Surface Vehicles

ABSTRACT This paper investigates a formation‐based cooperative pursuit‐evasion (PE) problem for marine surface vehicles (MSVs) under local sensing and partially connected communication topologies. A distributed two‐layer control framework is proposed for the case where each pursu...

Proof-of-principle experimental demonstration of side-channel-secure quantum key distribution over 200 km

Quantum key distribution (QKD) enables two remote parties to share encryption keys with information-theoretic security guaranteed by physical laws. Side-channel-secure QKD (SCS-QKD) has attracted considerable attention because it simultaneously removes source and detector side-ch...

Ni-Based Metal–OrganicFramework Derived from2,6-Bis(1H-Pyrazol-1-yl)Isonicotinic Acid and its Sensing Performance

Abstract Metal–Organic Frameworks (MOFs) are a class of highly promising antibiotic sensing materials. However, the practical applications of MOF-based fluorescent probes are limited due to their drawbacks, such as insufficient selectivity, weak anti-interference ability, and poo...

Controlled flight of high-thrust ultralight ion-propelled microrobot with integrated sensing

Ion wind technology holds potential for the miniaturization of flying microrobots, generating thrust without mechanical moving parts, enabling simplified and light designs free from high-frequency actuators. Nevertheless, two fundamental challenges have limited its practical impl...

Synergies and trade-offs for reaching global biodiversity and climate commitments

The Kunming-Montreal Global Biodiversity Framework strives to expand high-quality protected areas globally, yet faces economic constraints, climate change and human pressures. This requires integrating biological and socio-economic complexity while ensuring equity. We explore mul...

Optimization of Multimodal Public Transit Networks Considering Spatial Equity

Public transport equity is usually assessed after a network has been designed rather than treated as a requirement that shapes the design itself. This study develops an equity-oriented optimization framework for hierarchical multimodal transit networks in which a fixed rail backb...

Direct Regeneration of Spent LiFePO 4 Using Methionine for Defect Repair and N/S‐Doped Interface Construction

ABSTRACT The coming wave of end‐of‐life electric vehicles presents a formidable challenge for the recycling of spent Li‐ion batteries, particularly those with LiFePO 4 cathodes. The degradation of the LiFePO 4 cathode is primarily attributed to Li loss‐induced lattice defects and...