Scientific Inquiry and Review

A Study of New Continuous Univariate Weibull Model with Empirical Illustrations

2025-01-10T07:59:35+00:00

The theory of probability distribution is used for mathematical modeling in various research areas. It makes those models flexible that are used to quantify uncertainties and risks in extreme events. This is also important for decision-making. This study proposes a new model labeled as ‘exponentiated alpha Weibull (EAW)’. The densities and reliability functions of EAW are also depicted graphically. Various statistical properties of the proposed model are explored. For estimation, the maximum likelihood (ML) method is applied. Simulation study is also performed. To check model performance, the proposed model is compared with other competitive models (CMs) for water runoff data.

Selective Removal of Zinc, Cadmium, and Lead from Industrial Effluents using Bimetallic Nanoparticles Synthesized via Green Route

2025-01-06T11:46:24+00:00

The biocompatible qualities of nanoparticles, synthesized by plant medium, have garnered a considerable attention. Nanoparticles made of two different metals (thus the name "bimetallic") are crucial in the process of purifying wastewater. Adsorption is enhanced for bimetallic nanoparticles due to their larger surface area as compared to the monometallic nanoparticles. The current study examined the adsorption characteristics of Mg-Bi bimetallic nanoparticles and their efficacy in removing cadmium, lead, and zinc from wastewater. The synthesis of bimetallic nanoparticles from natural resources (plant extract) is more significant than conventional methods due to its low cost, dependability, non-toxicity, and environmental friendliness. Plant extract made from biomass wastes including roots, flowers, leaves, and fruit peels contains terpenoids, flavonoids, and alkaloids which are new secondary metabolites and work as stabilizing and reducing agents. SEM, UV- Visible, EDX, and XRD are some of the methods used to examine synthesized nanoparticles for shape, content, and size. Heavy metal removal is sensitive to changes in pH, adsorbent dose, and metal concentration at the outset. The results confirmed that the plant-mediated synthesized nanoparticles can be used as a systematic adsorbent for the elimination of heavy metals in wastewater.

On the Study of Topological Indices of Drugs against COVID-19

2025-01-06T10:04:50+00:00

A topological index (TI) is an analytical metric of the molecular structure derived from the corresponding molecular graph. A class of viruses known as coronaviruses is responsible for human upper respiratory tract infections. Several antiviral medications currently available in the market are efficient in managing COVID-19. These include ritonavir, arbidol, theaflavin, hydroxychloroquine, chloroquine, and remdesivir (GS-5734). In this study, a set of TIs for remdesivir (GS-5734), arbidol, theaflavin, ritonavir, chloroquine, and hydroxychloroquine are computed based on their repective molecular graphs. These indices comprise Nirmala leap index, modified Nirmala leap index, first inverse Nirmala index, and second inverse Nirmala index. Additionally, the calculated outcomes are plotted to see how they are affected by the relevant parameters. The analysis shows that the Nirmala leap index shows the highest value among the studied indices, with Ritonavir leading at . Conversely, the modified Nirmala leap index shows the lowest value of for chloroquine. These findings may offer assistance in the advancement of novel COVID-19 treatment drugs.

Computation of Tades of Some Families of Graphs

2025-01-06T10:05:44+00:00

This study presents novel and efficient techniques for computing the Total Absolute Difference Edge Irregularity Strength (TADES) of several well-known graph families. Specifically, the focus remains on book graphs with pentagonal pages, the hairy cycle graph, and three-regular graphs. For these increasingly complex graph structures, innovative algorithmic methods are introduced that significantly reduce the computational complexity of determining TADES, thus contributing valuable insights and advancements to the study of graph theory.

Review on Use of Lignosulfonate Additives for Soil Stabilization

2025-02-13T05:32:00+00:00

Compressible soils present a major obstacle in geotechnical engineering due to their tendency to expand and contract. This leads towards damages that may surpass the collective impact of floods, hurricanes, tornadoes, and earthquakes. The management of these soils during construction projects has become increasingly costly. However, employing suitable stabilization techniques may enhance their properties. The current study aimed to evaluate mechanical and chemical methods in order to stabilize expansive soils, considering factors, such as efficiency, environmental impact, and cost-effectiveness. The absence of standardized protocols to treat swelling soils complicates engineering practices. This highlights the need for collaboration among specialists. The study focused on lignosulfonate, an industrial by-product, for subgrade stabilization. Furthermore, it also explored the impact of lignosulfonate on soil properties and its environmental-friendly nature. Previous research indicates positive outcomes, with lignosulfonate effectively improving soil properties through ion exchange processes. Despite various challenges, lignosulfonate presents a promising approach to soil stabilization and also offers technical effectiveness and environmental sustainability.