Northeast Normal University

Reconfigurable Floating‐Gate van der Waals Phototransistor With Asymmetric Contact Geometries for Bio‐Inspired Multi‐Stage Visual Tasks

ABSTRACT Bio‐inspired optoelectronic devices with in‐sensor neuromorphic computing capability are promising for artificial visual applications. However, the biological visual system possesses simultaneous sensing and multi‐stage processing capability through the retina and visual...

Polyoxometalate-incorporated metal–organic frameworks as electrochemical sensors for ascorbic acid, dopamine and uric acid

Abstract Real-time analysis of small-molecule metabolites such as ascorbic acid (AA), dopamine (DA), and uric acid (UA) is valuable for investigating biological systems and supporting disease diagnosis. As a representative metal-organic framework (MOF), MIL-101(Cr) combines stron...

Pressure-Driven Topological Reconfiguration toward Fast-Charging Hard Carbon with Plateau-Capacity Retention

Abstract Conventional carbonization of semi-coke induces excessive ordering of aromatic skeletons, producing dense graphitic structures that hinder Na+ intercalation and suppress low-potential plateau capacity. Here, we develop a rapid thermomechanical coupling sintering strategy...

Decreased precipitation frequency increases nitrogen loss across degraded grasslands in a two-year mesocosm experiment

Soil inorganic nitrogen (N) is frequently lost from grasslands through gaseous emissions and leaching, both strongly regulated by precipitation, reducing soil nutrient availability and influencing offsite environments. Amid declining precipitation frequency and widespread grassla...

Why can’t they “Go back”? — A multi-group comparative analysis of pre-service teachers’ hometown return intention in local universities based on latent profile analysis

The high-quality development of rural education urgently requires strengthening the supply of outstanding rural teachers. Based on Social Cognitive Career Theory (SCCT), a survey of 6,546 teacher education students from local universities in Heilongjiang Province revealed that th...

Species-specific phenological indicators reveal topographic–climatic associations with evergreen-tree phenology in subtropical hilly regions

Evergreen-tree phenology is an important ecological indicator of forest responses to climate change and local environmental heterogeneity. In subtropical hilly regions, frequent cloudy and rainy conditions, complex terrain, and weak seasonal greenness signals hinder species-level...

Band Degeneracy and Liquid-like Dynamics in Intercalated La2O2Te/BiAgSeO Thermoelectrics

Abstract Interlayer modulation of layered oxychalcogenide superlattices provides a strategy to decouple electron–phonon transport for high-performance thermoelectric (TE) materials. Herein, an intercalated oxychalcogenide superlattice (La4Bi2Ag2Se2Te2O6) is theoretically designed...

NaIO 4 ‐Mediated Tandem Oxidative Annulation of Aryl Isocyanides With 2‐Alkynylanilines: Access to Indolo[2,3‐ b ]quinolines

A NaIO 4 ‐mediated oxidative tandem annulation of aryl isocyanides with 2‐alkynylanilines has been developed for the efficient construction of the indolo[2,3‐ b ]quinoline scaffold. Under metal‐free conditions in an EtOH/H 2 O solvent system at room temperature, a series of desir...

Comparison of the Photodegradation of Pharmaceuticals and Personal Care Products (PPCPs) in Water and Ice

Abstract Photochemical reactions are prevalent in natural aquatic environments and play a crucial role in aquatic ecosystems. Sunlight-induced photodegradation is particularly effective in degrading various pharmaceuticals and personal care products (PPCPs). However, the photoche...

Non‐Markovian Entanglement via Parametrically Mediated Molecular Cavity Optomechanics

ABSTRACT Quantum entanglement in molecular cavity optomechanical (COM) systems serves as a fundamental resource to explore quantum‐enhanced sensing, coherent molecular dynamics, and quantum information processing, which has been studied under Markovian approximation but not yet e...

High-fidelity fabrication of sub-millimeter thickness silica glass optical components via a synergistic suppression strategy in UV imprint lithography

Ultraviolet imprinting technology offers significant advantages in fabricating silica glass optical devices due to the high precision, high efficiency, and excellent reproducibility. However, when fabricating components with sub-millimeter thickness and high aspect ratios, the st...

Theoretical Study of Iridium-Based PDT Photosensitizers for Improving Two-Photon Absorption, Triplet Lifetime, and Lipophilicity through Ligand Tuning

Abstract Iridium-based photosensitizers have attracted significant attention in photodynamic therapy (PDT) due to their exceptional photophysical properties and chemical stability, as well as tunable phosphorescence emission spectrum and high triplet state production yields. Phot...

Construction of Porous Aromatic Frameworks by Organic Cage Building Blocks for Organic Vapor Adsorption and Ethanol/Water Separation

Abstract Three-dimensional porous aromatic frameworks (PAFs) possess high specific surface areas and interconnected pore channels, holding great promise for applications in adsorption and separation. To expand the library of building blocks for PAFs and enrich their topological d...

Multiwavelength Optical Pulse-Induced Temporal State Mapping in an ITO/SnO2/ITO Optoelectronic Synaptic Device

A vertical ITO/SnO2/ITO optoelectronic synaptic device was fabricated by magnetron sputtering for optical sensing and temporal-state encoding. The ITO/SnO2 stack exhibited 88.3% average transmittance over 400–800 nm. The device responded to 380, 550 and 660 nm illumination and sh...

Multiscale axial displacement measurement based on radially segmented double-helix PSF and multi-feature hierarchical demodulation

The double-helix point spread function (DH-PSF) inherently suffers from a trade-off between axial range and sensitivity, which limits its use in optical alignment and focal-plane tracking tasks that require both wide-range acquisition and high-precision localization. To overcome...

Subwavelength resonances in two-dimensional high-contrast elastic media with circular inclusions

Abstract This paper employs layer potential techniques to investigate wave scattering in two-dimensional elastic media exhibiting high contrasts in both Lamé parameters and density, with the analysis restricted to circular inclusions. Our contributions are fourfold. First, we con...

Simulated Trampling Disturbance Alters Biocrust Microbial Communities and Soil Functions: A Container‐Based Mesocosm Experiment

ABSTRACT Biological soil crusts (biocrusts) are crucial components of dryland ecosystems; however, they are highly vulnerable to anthropogenic disturbances, particularly trampling caused by grazing. To evaluate the impacts of trampling on biocrust structure, microbial communities...

Robust hyperspectral retrieval of mangrove functional traits across species and spatial scales using GA-ELM

Plant functional traits provide critical indicators of ecosystem functioning, biodiversity maintenance, and plant adaptive strategies under environmental change. However, hyperspectral retrieval of mangrove functional traits remains challenging because trait-related spectral sign...

The Development of Mandarin-Speaking Children’s Comprehension of Irony

This study examined age-related differences in irony comprehension among 168 Mandarin-speaking children aged 6–10 years. Each child watched four illustrated stories with prerecorded audio: one literal, one deception, and two irony stories. For each irony story, children judged th...

Philhellenism, mishellenism and classical reception in modern China

Abstract ‘Constantly commending Hellas’ is a metaphorical expression coined by Mao Zedong to label Soviet-backed party rivals as ‘philhellenic’ during the 1941 party purge, reinforcing his leadership under the guise of the Sinification of Marxism. Following the communist conquest...