Направление развития системы видеонаблюдения

The article is devoted to the study of modern trends in the development of video surveillance and video monitoring systems. Based on the characteristics and capabilities of the structural components of modern video surveillance systems analyzed in the scientific literature, the authors proposed a logical version of the block diagram of the video control system, which can be used as a basis for creating a video control system at automobile checkpoints.статья посвящена исследованию современных направлений развития систем видеонаблюдения и видеоконтроля. На основе проанализированных в научной литературе характеристик и возможностей структурных компонентов современных систем видеонаблюдения авторами предложено логичный вариант структурной схемы системы видеоконтроля, которое может быть использовано в качестве основы для создания системы видеоконтроля в автомобильных пунктах пропуска

A Natural Zeolite Developed with 3-Aminopropyltriethoxysilane and Adsorption of Cu(II) from Aqueous Media

In this work, we removed copper (II) from an aqueous solution by using zeolite modified with a silicon-organic monomer (3-aminopropyltriethoxysilane; APTES) depending on the pH, time, temperature, and initial concentration of Cu(II) ions. To confirm the modification process and assess the interaction between the modified zeolite and Cu(II), we performed instrumental analyses (XRD, SEM/EDX, TGA/DTA, BET, FT-IR, and XPS). We determined the maximum adsorption capacities of the modified zeolite for Cu(II) to be 4.50, 6.244, 6.96, and 20.66 mg/g at T = 25 °C (pH = 5, t = 8 h) when the initial concentrations of Cu(II) were 50, 100, 200, and 400 mg/L, respectively. According to the adsorption thermodynamics and kinetics, the second-order reaction controls the adsorption process. Based on the two isotherm models (Langmuir and Freundlich) with constant values (KL = 0.144, n = 2.764) and the correlation coefficients (R2 = 0.8946, R2 = 0.9216), we concluded that the Cu(II) adsorption onto the modified zeolite could be followed by the Freundlich isotherm model rather than the Langmuir isotherm model. The modified zeolite could be an effective material for the removal of Cu(II) from aqueous solutions