Muthanna Journal of Pure Science (MJPS)

In this study, activated soot (AS2) has been produced using materials that are both affordable and available. The preparation of the AS2 is done by thermal treatment of the soot at 400 °C for 2 hours. XRD, SEM, and FTIR techniques were used to characterize the properties of the prepared AS2. The AS2 was used for Alizarine Red S (AR) dye adsorption from aqueous solutions. Several experimental parameters have been tested to study the properties of AS2 as an adsorbent, which include temperature, adsorbent weight, time, and the influence of pH. The results indicate that the AS2 has good adsorbent properties. Moreover, other remarks have been found such as the adsorption efficiency increased at pH=4 and decreased at pH=10. The rise in temperature has a negative impact on the adsorption efficiency. Finally, the optimal adsorbent weight was found to be 0.08 g and the optimal contact time was 15 min.

This article describes a software model algorithm that was implemented in order to determine the author of an unknown document based on the previously presented data and also studies the degree of accuracy of each of the measures for determining the authorship of a text. A comparative analysis is carried out based on the dependence of the quality of the identification of the text's creator on his stylistic affiliation.
The problem of determining the authorship of anonymous text in this programming model has been solved using a set of metrics, for each of which the following parameters are required: analysis of text frequency, total number of characters in the text, and dimension of the alphabet. These parameters are required for anonymous text and for the library of famous authors.

In this paper, we introduce a new subclass of analytic and meromorphic univalent function associated with liner operator involving complex order in the punctured unit disk. Then we characterized these functions and obtained some of properties of this subclass.

In electronic devices, some important materials having a high dielectric constant can be used. Polymer-ceramic composites have a high dielectric constant and are widely used for embedded capacitor applications. It is critical to use polymer poly methyl methacrylate (PMMA) as thin films capacitors for the gate dielectric in organic field-effect transistors (OFETs). In this work, thin films of polymer PMMA were prepared by using spin coating at different speeds (1500, 2000, 2500, 3000 and 3500 rpm) to control the film thickness and study the effect of the thickness on the dielectric properties. Thin film thickness was measured by using field emission scanning electron microscopy (FESEM) to take cross-section images. We found that the film thickness decreased with increased rotational speed from 27387 nm at 1500 rpm to 10600 nm at 3500 rpm. The values of the capacities were nearly stable with increasing frequencies when thickness equal to or larger than (14366 nm), but their increased with increased frequency at thickness (10600 nm), and the dielectric constant also decreases with increasing thin films thickness. The best result of capacitance value was at thickness 10600nm which equal to (5.753 nF) and dielectric constant equal to (3.511) which represents best value that can be used as dielectric gate for Organic Field Effect Transistor (OFET).

currently, the development of a new class of software called “decentralized applications” is gaining popularity. Its foundations were laid by the technologies of Bitcoin and BitTorrent, aroused the interest of developers in the methods of their implementation.
Over the past few years, the whole world has been excited by the explosion in popularity of cryptocurrencies, which has brought blockchain technology into the spotlight. its application is not limited to the creation of electronic money and platforms for their exchange. One of the promising areas for the introduction of blockchain technology is its use in the banking sector to improve the security of operations and reduce costs.
This paper focuses on Blockchain technology and investigates its applications, implementations, and constituents. and how blockchain applications enhancing database management.