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    Interaction and Adsorption of Hydrophobically Modified Polyacrylamide on Silica and Asphaltene Surfaces by Wenjie Zou, Zichuan Fang, Zhijun Zhang, Zhenzhen Lu

    Published 2019-01-01
    “…The adhesion and adsorption of a hydrophobically modified polyacrylamide (HMPAM), i.e., P(AM-NaAA-C16DMAAC), on silica and asphaltene were investigated using surface force measurements, thermodynamic analysis and quartz crystal microbalance with dissipation (QCM-D) measurement. …”
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    Volatility Similarity and Spillover Effects in G20 Stock Market Comovements: An ICA-Based ARMA-APARCH-M Approach by Shanglei Chai, Zhen Zhang, Mo Du, Lei Jiang

    Published 2020-01-01
    “…Specifically, we first identify which G20 stock markets have similar volatility features using a fuzzy C-means time series clustering method and then investigate the dominant source of volatility spillovers using the ICA-based ARMA-APARCH-M model. …”
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    Investigating the Influence of Surface Runoff and Human Activities on the Seasonal Characterization of Physicochemical Properties of the upper segment of Qua Iboe River Water, Nige... by U. E. Jonah, I. I. Akpan, E. S. Umoh

    Published 2025-02-01
    “…The values of physicochemical parameters assessed in water samples gave the following ranges: Water Temperature (22.0-31.6 oC), Dissolved Oxygen (1.5-7.42 mg/L), Total Dissolved Solids (48.6-130.6 mg/L), Electrical Conductivity  (72.5-195.0 mg/L), Turbidity (5.14-48.0 NTU), Sulphate (42.8-158.3 mg/L), Nitrate (1.76-17.48 mg/L),Phosphate (1.85-17.95 mg/L), Biochemical Oxygen Demand (0.62-6.51 mg/L), Chloride (22.29-80.36 mg/L) and Total Suspended Solids (22.1-91.5 mg/L). …”
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