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Papers
16 resultsShowing papers from Beijing Jiaotong University
ClearRecent Advances on Underwater Soft Robots
This paper describes advances in underwater soft robots made from flexible materials that can adapt to ocean environments. While not directly related to microplastics, these robots have potential applications in ocean monitoring and environmental cleanup. The review covers the materials, movement patterns, power systems, and sensing capabilities that could eventually help address marine plastic pollution.
mTOR Signaling Pathway and Gut Microbiota in Various Disorders: Mechanisms and Potential Drugs in Pharmacotherapy
This review summarizes how the mTOR signaling pathway, a master regulator of cell growth and metabolism, interacts with gut bacteria to influence a wide range of diseases. Disruptions to gut microbiota can trigger mTOR-related problems linked to cancer, diabetes, and inflammatory conditions. While not focused on microplastics directly, this pathway is relevant because microplastic exposure is known to disrupt gut bacteria and may contribute to mTOR-related health issues.
Impact of vehicle type, tyre feature and driving behaviour on tyre wear under real-world driving conditions
Researchers measured real-world tire wear from 76 taxi cars over 22 months, finding that hybrid vehicles produced more tire wear than conventional cars, likely due to their heavier battery weight. Winter tires generated about three times more wear than summer tires, and front tires wore 1.7 times faster than rear tires. The study provides practical data on tire-derived microplastic emissions under actual driving conditions, which is important for understanding this significant but understudied source of environmental microplastics.
Separation, characterization and identification of microplastics and nanoplastics in the environment
This review evaluates the various analytical techniques used to separate, characterize, and identify microplastics and nanoplastics in environmental samples. Researchers compared the strengths and weaknesses of different methods including spectroscopy, microscopy, and thermal analysis approaches. The study highlights the need for standardized procedures and emerging detection tools to improve our understanding of microplastic contamination and its ecological impacts.
[Vertical Distribution Characteristics of Microplastics in Miyun Reservoir].
Researchers measured microplastic levels at different water depths in Beijing's Miyun Reservoir, an important drinking water source, finding concentrations ranging from 0.4 to 7.6 particles per liter. The study found that microplastic abundance was significantly higher during flood season, with fibers being the dominant type across all water layers and polyethylene and polypropylene the most common polymer types.
The impact of microplastics on the adsorption of 2,4,6-tribromophenol in soils: Competitive adsorption
Researchers investigated how polyethylene microplastics in soil affect the adsorption of the brominated organic contaminant 2,4,6-tribromophenol, finding competitive adsorption between soil particles and MPs that altered the contaminant's mobility and bioavailability.
A Comparison of new and age-old approaches treating microplastics in the marine environment
This review compares existing and emerging technologies for removing, recycling, or degrading microplastics in the ocean, concluding that current approaches remain insufficient to address the scale of marine plastic pollution.
Low-Cost Thermal-Infrared ‘THz-Torch’ Spectroscopy
This paper is not relevant to microplastics research; it describes a low-cost thermal-infrared spectroscopy technique ('THz-Torch') for non-destructive material characterization, demonstrated on glass, semiconductor, ceramic, and plastic materials.
Detecting and Evaluating Fatigue Damage Mechanisms in Concrete with Embedded Aggregate Sensors
Researchers embedded custom aggregate sensors in concrete specimens to monitor internal strain evolution during high-cycle fatigue loading, revealing significant strain localization, shifting stress transfer pathways, and a synergistic damage mechanism involving crack growth, interfacial friction, and evolving stress fields.
Comparative Analysis of Electrochemical Oxidation and Biodegradation for Microplastic Removal in Wastewater
Researchers compared electrochemical oxidation and biodegradation for removing polystyrene microplastics from wastewater, finding that electrochemical oxidation achieved superior removal efficiency and could serve as a more effective treatment pathway at wastewater treatment plants.
Ridge regression-based modeling for assessing the extent of response to biological invasions
Researchers developed a ridge regression-based model to assess biological invasion security threat levels by filtering key factors from economic, medical, scientific, social, and ecological domains and applying regularization to address data covariance and prevent overfitting. The study represents the first application of ridge regression to biological invasion risk assessment, demonstrating improved model stability and generalization compared to standard linear regression approaches.
Environmental Value Assessment of Plastic Pollution Control: A Study Based on Evidence from a Survey in China
Researchers assessed the environmental value of plastic pollution control in China using a choice experiment method with 450 surveyed residents, finding that residents were most willing to pay for source reduction over recycling or cleanup, and that incorporating discount rates and future price changes improves the accuracy of environmental valuation.
The formation of discontinuous gradient regimes during crack initiation in high strength steels under very high cycle fatigue
[Spatial Variation and Potential Sources of Microplastics in Rivers in Tongzhou District, Beijing].
Researchers sampled water from 19 sites across six rivers in Tongzhou District, Beijing, and found microplastic contamination at all sites, with the Xiaozhong River showing the highest abundance at 3.50x10^4 particles per cubic meter — about four times higher than the least-polluted river — with agricultural films and synthetic textiles identified as primary sources.
Evaluation of plastic damage for metallic materials under tensile load using nonlinear longitudinal waves
The Promotion/Inhibition of the Seepage Transport of Copper Ions by Suspension-Colloidal Particles with Wide Size Gradation
Researchers used sand column experiments to study how silicon particles of different sizes affect the transport of copper ions through soil. Larger silicon particles inhibited copper transport while smaller particles promoted it, with implications for understanding how colloids influence contaminant mobility in soils.