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Synthesis and Characterization of Nanoporous Carbon Materials; The Effect of Surfactant Concentrations and Salts

Nanoporous carbon framework was synthesized using phenol and formaldehyde as carbon precursors and triblock copolymer (pluronic F127) as soft template via evaporation induced self-assembly. Hexagonal mesoporous carbon with specific surface area of 350 m2/g through optimizing the situation was obtained. The effects of different surfactant/phenol molar ratio and presence of salts...

An Efficient Synthesis of Tetrahydrobenzo[b]pyran Derivatives Using Sulfonic Acid Functionalized Silica as an Efficient Catalyst

Tetrahydrobenzo[b]pyran derivatives were efficiently synthesized by the reaction of appropriated aromatic aldehydes, malononitrile and dimedone in the presence of SiO2-Pr-SO3H as a nanoporous and recoverable solid acid catalyst, in good to excellent yields. Single crystal x-ray analysis conclusively confirmed the structure of the 2-amino-3-cyano-7,7-dimethyl-4-(4-methylphenyl)-5...

Enhancing response coordination through the assessment of response network structural dynamics

Conceptualization: Alireza Abbasi, Abolghasem Sadeghi-Niaraki, Mahdi Jalili. Data curation: Alireza Abbasi. Formal analysis: Alireza Abbasi, Mahdi Jalili. Funding acquisition: Abolghasem Sadeghi-Niaraki, Soo-Mi ... Choi. Methodology: Alireza Abbasi. Project administration: Abolghasem Sadeghi-Niaraki, Soo-Mi Choi. Software: Alireza Abbasi. Supervision: Soo-Mi Choi. Validation: Mahdi Jalili. Visualization

Popularity and Novelty Dynamics in Evolving Networks

Network science plays a big role in the representation of real-world phenomena such as user-item bipartite networks presented in e-commerce or social media platforms. It provides researchers with tools and techniques to solve complex real-world problems. Identifying and predicting future popularity and importance of items in e-commerce or social media platform is a challenging...