North University of China

PKSF: A Task-Aware Prior Knowledge Selection and Fusion Framework for TextVQA

Text-based visual question answering (TextVQA) requires reasoning over images containing rich textual content, often involving knowledge beyond what is directly observable. Existing methods fuse visual objects and OCR tokens but struggle when questions require external knowledge....

Comparison study of the total sugar, amino acids, Maillard reaction products and volatile compounds of Huangjiu from Shaoxing and Daixian in China

Abstract BACKGROUND The Huangjiu (Chinese rice wine) is one of the most culturally important alcoholic beverages in China, with the varieties from Southern Shaoxing and Northern Daizhou being particularly renowned. The raw materials and production processes of Huangjiu from these...

Multi-scale multi-task CNN with bidirectional squeeze-and-excitation attention for rolling bearing fault diagnosis

Abstract To overcome the engineering drawback that existing rolling bearing diagnosis models fail to simultaneously identify fault types and classify fine-grained damage severities, this paper proposes a multi-scale multi-task CNN embedded with bidirectional squeeze-and-excitatio...

Speech feature decoding and classification based on contact-type piezoelectric sensors and deep learning

Purpose Speech has become the preferred method of interaction for human-machine interfaces and internet of things (IoT) control; however, traditional air-conduction microphones are susceptible to environmental noise interference and lack sufficient security. To address these chal...

Tetranuclear Cluster-Based Luminescent Metal-Organic Framework as Robust Chemical Sensor toward Phenylglyoxylic Acid Biomarker in Bodily Fluids

Abstract Phenylglyoxylic acid (PGA) is widely established as a core urinary biomarker for assessing human exposure to styrene (SM) and ethylbenzene (EB), and developing reliable luminescent sensors carries critical practical significance for occupational health monitoring. In thi...

Membrane Emulsification Preparation of ADN/PVA Composite Particles Exhibiting Excellent Thermal Properties and Anti-Hygroscopicity

Ammonium dinitramide (ADN) is a high-energy green oxidizer with significant potential for use in solid propellants; however, its practical application is restricted by its strong hygroscopicity and low safety. In this study, morphology control and surface coating were simultaneou...

A TSV-packaged SP6T RF MEMS switch with ultra-thin profile and suppressed substrate loss for DC to Ku band application

The evolution of wireless communication imposes stringent requirements on RF front-end modules, specifically demanding switches with ultra-thin profiles and wideband coverage up to Ku band. However, conventional packaged MEMS switches often result in excessive device height, crea...

Physics‐Guided Transformer Enables Efficient Inverse Design of Terahertz Metasurfaces for Glucose Sensing

ABSTRACT Inverse design of terahertz (THz) metasurfaces via algorithmic models has become a mainstream trend and finds wide application in THz biosensing devices. However, traditional inverse design methods without optimization often rely solely on mathematical correlations, lack...

In Situ Sodiation of CoSe 2 Modulating Charge Transfer in Sodium−Selenium Batteries

ABSTRACT Selenized polyacrylonitrile (SePAN), characterized by the unique C−Se covalent bonds, can suppress the formation of polyselenides and their associated shuttle effect in sodium−selenium (Na−Se) batteries. However, its polymeric structure and distinct conversion mechanism...

A survey of contrastive clustering research: algorithms, applications and challenges

Contrastive clustering, which leverages contrastive learning to enhance clustering performance, has made significant progress in recent years. The emergence of numerous diverse and valuable research outcomes highlights the necessity of systematically summarizing and analyzing the...