Junnan Li

ORCID: 0000-0003-2116-4111
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About
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Research Areas
  • Microplastics and Plastic Pollution
  • Crystallization and Solubility Studies
  • Recycling and Waste Management Techniques
  • X-ray Diffraction in Crystallography
  • biodegradable polymer synthesis and properties
  • Landslides and related hazards
  • Microbial Community Ecology and Physiology
  • Emotion and Mood Recognition
  • Marine Bivalve and Aquaculture Studies
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Nanocluster Synthesis and Applications
  • Electromagnetic wave absorption materials
  • Metamaterials and Metasurfaces Applications
  • Injection Molding Process and Properties
  • Magneto-Optical Properties and Applications
  • Quantum Dots Synthesis And Properties
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Advanced Nanomaterials in Catalysis
  • Magnetic Properties and Applications
  • Full-Duplex Wireless Communications
  • Machine Learning in Materials Science
  • Data Stream Mining Techniques
  • Seedling growth and survival studies
  • Advanced Antenna and Metasurface Technologies
  • Graphene and Nanomaterials Applications

Shanghai Jiao Tong University
2024

Beijing Ditan Hospital
2024

Capital Medical University
2024

Ocean University of China
2023

Huazhong University of Science and Technology
2015-2023

Fujian University of Technology
2023

Anhui University
2022

Jangan University
2022

University of Science and Technology Liaoning
2022

Soochow University
2019

Colloidal quantum dot (CQD) solar cells processed from pre-exchanged lead sulfide (PbS) inks have received great attention in the development of scalable and stable photovoltaic devices. However, current hole-transporting material (HTM) 1,2-ethanedithiol-treated PbS (PbS-EDT) CQDs several drawbacks terms commercialization, including need for oxidation multilayer fabrication. Conjugated polymers are an alternative HTM with adjustable properties. Here we propose a series conjugated (PBDB-T,...

10.1021/acsenergylett.9b02301 article EN ACS Energy Letters 2019-11-05

The nitrogen cycling has an important ecological role in aquaculture ponds, and microbes mainly carry out the related processes. To better reveal microbial community processes shrimp clam polyculture we analyzed communities of water sediment four ponds containing Litopenaeus vannamei with different stocking densities Mercenaria mercenaria (LM, 0 ind/m2; LM-L, 17.4 LM-M, 34.8 LM-H, 52.2 ind/m2) from May to September. Additionally, possible reaction rates gene abundances involved were...

10.1016/j.aqrep.2023.101769 article EN cc-by Aquaculture Reports 2023-10-10

Emotion recognition from physiological signals (ERPS) has drawn tremendous attention and can be potentially applied to numerous fields. Since are nonstationary time series with high sampling frequency, it is challenging directly extract features them. Additionally, there 2 major challenges in ERPS: (a) how adequately capture the correlations between at different times types of (b) effectively minimize negative effect caused by temporal covariate shift (TCS). To tackle these problems, we...

10.34133/cbsystems.0074 article EN cc-by Cyborg and Bionic Systems 2023-11-03

Purpose Approximately one-third of hepatocellular carcinoma (HCC) cases are characterized by alpha-fetoprotein (AFP) negativity (AFP-NHCC. Among these patients, around 60% exhibit des-gamma-carboxyprothrombin (DCP) positivity, and DCP-positive patients have a poorer prognosis. As curative treatment, recurrence after liver resection poses significant challenges to the prognosis HCC patients. Therefore, it is necessary determine relevant risk factors provide timely treatment options. Methods...

10.3389/fonc.2024.1414083 article EN cc-by Frontiers in Oncology 2024-08-08

The structures, magnetic properties, permittivity spectra, and magnetodielectric (MD) effects of polycrystalline Y3Fe5−xSnxO12 compounds prepared by solid state reactions were systematically investigated. substitution Sn4+ leads to lattice expansion the donation excess electrons in ceramics, which affects concentration Fe2+, space charge, electric dipole. As a result, as amount Sn dopant increases, so does saturation magnetization low frequency band. MD coefficient ([εr(H) − εr(0)]/εr(0))...

10.1063/1.4933279 article EN Journal of Applied Physics 2015-10-16

Mg <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1-x</sub> Cu xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> Fe xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> ferrites for electromagnetic interference suppression were systematically investigated in crystallographic structure, morphologies, and magnetic dielectric spectra over a frequency range of 10-1000 MHz. Findings indicated that...

10.1109/tmag.2015.2428718 article EN IEEE Transactions on Magnetics 2015-05-01

Fe-6.5%Si alloy powders coated with manganese oxides using an innovative in situ process were investigated. The in-situ coating of the insulating was realized a KMnO4 solution by chemical process. mixed valance state verified X-ray photoelectron spectroscopy analysis. thickness layer on particles determined to be range 20–210 nm, depending upon concentration. powder core loss and change permeability under DC-bias field measured at frequencies ranging from 50 100 kHz. experiments indicated...

10.1063/1.4919038 article EN Journal of Applied Physics 2015-04-24

In this paper, 3D particulate scale modelling on the die compaction of DEM generated initial packings both soft and hard particles was conducted by employing multiparticle finite element method (MPFEM). The effects packing structures as well pressure macroscopic microscopic properties whole powder mass local were investigated. addition, corresponding physical experiments carried out for model validation. results show that compact obtained from dense under vibration undergoes yielding stage...

10.1155/2022/8580849 article EN Mathematical Problems in Engineering 2022-02-10

Background: The integrity of the extracted core in loose sandstone gas reservoirs is poor, and because hydration collapse easily occur, it difficult to evaluate sensitivity characteristics accurately by traditional flooding experiments. Objectives: We instead investigate stress water formation soaking time using digital technology. Methods: take a reservoir as research object begin scanning samples with CT scanner. A three-dimensional image can be obtained, information extracted, pore...

10.2174/1874834101811010084 article EN The Open Petroleum Engineering Journal 2018-06-22

Aims Defoliation by insects leads to significant changes in tree growth and physiological metabolism. However, how fine root dynamics would respond defoliation is still poorly understood. The objectives of this study were to: 1) compare the responses height stem collar diameter manchurian ash (Fraxinus mandschurica) Dahurian larch (Larix gmelinii) seedlings; 2) quantify effects on seasonal production mortality two species. Methods Manchurian seedlings, with different biomass allocation...

10.3724/sp.j.1258.2014.00102 article EN Chinese Journal of Plant Ecology 2014-01-01

Herein, we combined a derivative of cisplatin (CP) and the chemosensitizer lonidamine (LND) to design an amphiphilic prodrug, in which ratio LND was fixed at 2:1. Diaminedichlorodihydroxyplatinum (DH-CP) is hydrophilic derivative. Due its appropriate amphiphilicity, this prodrug could self-assemble into stable nanoparticles (denoted as LNP-NPs). Under action excessive glutathione (GSH) tumor cells, DH-CP be reduced cytotoxic cisplatin. In addition, released inhibit metabolic process...

10.1177/08853282221107951 article EN Journal of Biomaterials Applications 2022-06-10

Temporal concept shift (TCS) is an unavoidable problem in physiological signal-based emotion recognition tasks, i.e., the data distribution of signals constantly changing over time, which gradually degrades model accuracy. To this end, we propose a method based on combination domain adaptation and incremental learning to reduce impact temporal drift. In paper, used differences prevent learned knowledge from being forgotten. Finally, validate effectiveness our approach two real datasets.

10.1109/iccsie55183.2023.10175312 article EN 2023-01-14

There has been rising concern for the accumulation of microplastics (MP) in oceanic waters due no small part to their persistence and deterioration marine ecosystems. MP fragments uneven sizes are readily ingestible by biota with growing evidence postulating a size-regulated toxicity. The majority studies quantified localised toxic effects within contaminated organisms, but little attention placed on integrative toxicity response, which is greater importance from an ecological perspective....

10.2139/ssrn.4000684 article EN SSRN Electronic Journal 2022-01-01

Abstract Geological disasters damage highways and disrupt traffic, which reduces the service level of roads. We collected 15,435 geohazards in Guangxi Province. The within 1km highway buffer were selected to study its spatial distribution characteristics risk assessment methods. Geohazard intensity index sensitivity are proposed establish model. Based on weights evidence (WOE) method, influencing factors weight each factor obtained. By analyzing geohazards, collapses, landslides, ground...

10.21203/rs.3.rs-1002401/v1 preprint EN cc-by Research Square (Research Square) 2022-03-23
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