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Papers
7 resultsShowing papers from Hebei Science and Technology Department
ClearRisks of microplastics on germination and growth of pepper (Capsicum annuum L.) depending on the type, concentration, and particle size
Researchers tested how different types, concentrations, and sizes of microplastics affect pepper seed germination and seedling growth. They found that most microplastic treatments inhibited germination and that polyethylene terephthalate (PET) particles were generally the most harmful to seedling development. The study also revealed that larger microplastic particles tended to cause more oxidative stress in the plants, suggesting particle size plays an important role in toxicity.
Amount and characteristics of microplastic and organic matter in wind-blown sediment at different heights within the aeolian sand saltation layer
Researchers investigated microplastics in wind-blown sediment at different heights within the aeolian saltation layer over farmlands using plastic mulch, finding that wind erosion redistributes microplastics and enriches them at specific heights above the soil surface.
Characteristics of microplastics and their effects on phthalates and microbial activity in greenhouse soil after long-term planting
Long-term greenhouse vegetable cultivation using plastic mulch resulted in accumulation of microplastics in soil, which altered microbial activity and phthalate levels in ways that changed with the number of planting years.
The Preparation, Microstructure, and Wet Wear Properties of an Fe55-Based Welding Layer with the Co-Addition of 0.01 wt% CeO2 and 1.5 wt% SiC Particles Using the Plasma Beam Spraying Method
Researchers prepared and characterized an Fe55-based welding layer with co-additions of CeO2 and SiC particles using plasma beam spraying, evaluating the resulting microstructure and wet wear properties. The study found that the rare earth and ceramic particle additions improved the corrosion resistance and wear performance of the surface layer for valve spool applications.
Impact of Temperature Gradients on Multiphase Flow in Air Sparging Remediation Technology
Researchers developed a fully transient temperature-pressure coupled model to investigate how temperature gradients affect multiphase airflow behavior in air sparging groundwater remediation systems. The model addressed gaps in existing static-condition analyses and improved prediction accuracy for flow control under complex geological conditions with dynamic thermal variation.
Preparation, Microstructure and Wet Wear Properties of Fe55 Based Welding Layer with Co-addition of 0.01wt% CeO2 And 1.5 wt% SiC Particles by Plasma Beam Spraying Method
Researchers investigated the effects of co-adding CeO2 (0.01 wt%) and SiC (1.5 wt%) particles to Fe55-based plasma beam sprayed coatings on 1025 steel, characterizing microstructure and wet wear properties using optical microscopy, SEM, EDS, and rubber wheel friction testing, finding modified dendrite growth patterns and altered diffusion coefficients for Cr and C.
Effect of Cooling Rate on Microstructure Evolution and Mechanical Properties of SCM435 Steel
This materials science study examined how cooling rates during steel production affect the microstructure and mechanical properties of SCM435 steel. This metallurgy paper has no connection to microplastics or environmental health.