Junwei Yu

ORCID: 0000-0003-0869-1646
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About
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Research Areas
  • Supercapacitor Materials and Fabrication
  • Fiber-reinforced polymer composites
  • Hydrogen Storage and Materials
  • Graphene research and applications
  • Advanced Memory and Neural Computing
  • Circadian rhythm and melatonin
  • Electrospun Nanofibers in Biomedical Applications
  • Neural dynamics and brain function
  • Neurobiology and Insect Physiology Research
  • Genetics, Aging, and Longevity in Model Organisms
  • Aerogels and thermal insulation
  • Adsorption and biosorption for pollutant removal
  • Photoreceptor and optogenetics research
  • Insect and Arachnid Ecology and Behavior
  • Mechanical Behavior of Composites
  • Hybrid Renewable Energy Systems
  • Metal-Organic Frameworks: Synthesis and Applications
  • Pain Mechanisms and Treatments
  • Conducting polymers and applications
  • Emotion and Mood Recognition
  • Epoxy Resin Curing Processes
  • Natural Fiber Reinforced Composites
  • Advanced Cellulose Research Studies
  • Covalent Organic Framework Applications
  • Advancements in Battery Materials

Shandong University
2017-2025

Tsinghua University
2015-2024

Zhejiang University-University of Edinburgh Institute
2024

Nanjing Tech University
2024

South China University of Technology
2023

Taizhou University
2023

East China Normal University
2023

Brandeis University
2016-2022

Shanghai Maritime University
2022

Fuzhou University
2021

Both the structure and amount of sleep are important for brain function. Entry into deep, restorative stages is time dependent; short bouts selectively eliminate these states. Fragmentation-induced cognitive dysfunction a feature many common human pathologies. Whether normally regulated independent unknown. Here, we show that in Drosophila melanogaster, activation subset serotonergic neurons fragments without major changes total sleep, dramatically reducing long episodes may correspond to...

10.1016/j.cub.2019.08.079 article EN cc-by Current Biology 2019-10-24

Epoxy and epoxide composites have a wide range of outdoor applications wherein they are affected by ageing. In this study, epoxy casting plates epoxy-based composite rods for use in overhead conductors were prepared. A concurrent investigation concerning the ageing resins their carbon fibre was carried out via artificially accelerated experiments under hygrothermal salt mist conditions. The moisture penetration along depth, water absorption, appearance, hardness, density resins, variation...

10.3390/polym15030725 article EN Polymers 2023-01-31

ABSTRACT A series of self‐emulsified waterborne epoxy resin (WEP) emulsions were used as surface sizing for carbon fibers (CFs) to improve the interfacial adhesion between CF and matrix. In this work, hydrogenated bisphenol‐A (HBPAE) was modified by polyethylene glycol (PEG) with molecular weights 400, 800, 1000, 1500, 2000, 4000, 6000 g/mol. The properties WEP emulsion examined Fourier transform infrared spectroscopy, dynamic light scattering, transmission electron microscopy....

10.1002/app.44757 article EN Journal of Applied Polymer Science 2017-01-06

Heterojunction nanofibers have attracted scholars' attention due to their structural and performance advantages. Their unique structure allows for a clear interface between two or even multiphase components of the material, fully leveraging coupling synergistic effects multicomponents multilevel. We report spontaneous phase separation spinning technology under ambient conditions suitable mixture pitch polyacrylonitrile (PAN), which achieves one-step facile preparation pitch@PAN coaxial...

10.1021/acs.macromol.3c02629 article EN cc-by-nc-nd Macromolecules 2024-04-04

Abstract How neurons are capable of decoding stimulus intensity and translate this information into complex behavioral outputs is poorly defined. Here, we demonstrate that the C. elegans interneuron AIB regulates two types behaviors: reversal initiation feeding suppression in response to different concentrations quinine. Low quinine decoded by a low-threshold, fast-inactivation glutamate receptor GLR-1 translated initiation. In contrast, high high-threshold, slow-inactivation GLR-5 AIB....

10.1038/s41467-018-06819-5 article EN cc-by Nature Communications 2018-10-11

Graphene oxide (GO) has been widely used as an additive of polyacrylonitrile (PAN)-based carbon nanofibers (CNFs) to optimize its crystal structure and improve the mechanical performances nanofibers. However, homogeneous dispersion GO nanosheets among entangled PAN molecular chains is always challenging, poor severely limits positive effects on both CNFs. Considering this issue, paper provides for first time effective solution achieve rapid uniform introduction in PAN-based via situ...

10.1021/acsami.1c02643 article EN ACS Applied Materials & Interfaces 2021-03-30

Abstract Emulating the auditory sense is a significant challenge in terms of both integration and energy consumption for handling complicated spatiotemporal information. Here, we demonstrate how to utilize chaotic dynamics threshold switching memristor, which usually acts as leaky integrate fire neuron neuromorphic network, encode frequency amplitude We fabricate Pd/Nb/NbO x /Nb/Pd memristor dominated by Poole–Frankel conduction mechanism, set its state at edge chaos, stimulate it using...

10.1002/inf2.12458 article EN cc-by InfoMat 2023-06-12

The large thickness COPV is designed by netting theory and the finite element simulation method, but actual performance low cylinder still cannot be improved after increasing of composite winding layer. This paper analyzes reasons for this puts forward a feasible solution: without changing layer, can effectively increased proportion annular fiber. method has been verified tests supported theory.

10.3390/ma16072713 article EN Materials 2023-03-29

In this study, the slit dual-frequency ultrasound-assisted pulping of fresh Lycium barbarum fruit was optimized to improve dissolution polysaccharides. The microscopic mechanism polysaccharide explored through establishing polysaccharides kinetics model and visualizing multi-physical fields during ultrasonic process, an in situ real-time monitoring established by relationship between chemical value spectral information collected near-infrared spectroscopy. results showed that, under optimal...

10.1016/j.ultsonch.2023.106509 article EN cc-by Ultrasonics Sonochemistry 2023-07-01

Porous carbon fiber materials designed for hydrogen storage and dioxide capture under ambient pressure have garnered significant research interest due to their safety, high efficiency, simplicity. However, traditional activation processes compromise the nanopore microenvironment composed of surface chemical structure, multistage mechanical self-supporting properties porous excessive pore-making etching action, hindering practical application. To address this, a flexible cloth (POACF-P30-900)...

10.1021/acsanm.4c06684 article EN ACS Applied Nano Materials 2025-01-31

Adsorption agents are an important class of solid hydrogen storage materials. Attributed to their high specific surface area and adjustable nanopore structure, activated carbon nanofibers have attracted extensive attention in the application storage. The research this field mostly focuses on applications with a pressure condition 30 300 bar, while there been few systematic studies performance these materials under ambient pressure. In study, polyacrylonitrile-based were constructed by...

10.46690/capi.2023.03.02 article EN Capillarity 2023-03-19
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