Volume-15 ~ Issue-3 ~ March 2022

Abstract: Radiative cooling is an ecofriendly cooling method that has been deemed to be a possible solution for global warming. Recent works have created costly nanophotonic radiators that can bring considerable temperature reduction but are not suitable for mass production. Herein, we report the results of inexpensive PDMS films with patterns of rose petals and lily petals. Similar to artificial regular patterns, these films inspired by the nature can enhance the radiative cooling effect. The results show that the geometric structure of the petals can help promote radiative cooling, creating a maximum temperature difference of 6 °C with the bare metal plate. Further, the inspired films might not only perform daytime radiative cooling but also serve as useful resources in desertification. The results of this manuscript are essential as they add to the existing pool of knowledge in mechanical engineering, potentially having a significant impact on global energy consumption.

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Abstract: In the present study, the electrochemical degradation of Methylene blue dye from its aqueous solution by synthesized Sn/graphite modified electrode. The comparison between the kinetics of degradation by graphite and Sn/graphite modified electrode has been studied systematically. The effects of various parameters like dye concentration, pH, current density and different temperature, degradation rate is to be studied. UV-Visible spectra before and after degradation of dye was measured. The anodic oxidation by Sn/graphite modified electrode showed the complete degradation of aqueous solution methylene blue, which is confirmed by UV-Visible and COD measurements. This process.....

Keywords: Methylene Blue, Stannous graphite modified electrode (Sn/GME)

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Abstract: The isotopic elements obviously have no location in "the Periodic Table of the Chemical Elements". To resolve the ranking location of isotopes' place in the periodic table, to Constructing "Element's Periodic Law of Three-dimensional (solid)" becomes inevitable. The author summarizes the formation and development of the periodic law of chemical elements forms four stages: single→1D→2D→3D.

Keywords: Chemical element periodic table in plane; SNP; DNP; Isotopic center; 3DPeriodic System of Elements

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Abstract:Background: This study was carried out to investigate the level of heavy metals using Atomic Absorption Spectrophotometer (AAS) and to also carry out health risk posed to adult men by heavy metals such as lead (Pb), cadmium (Cd) and nickel (Ni) in goat meat organs sold within Kaduna Metropolis. The concentrations of these heavy meals were assessed on the basis of variation of heavy metals localization in different organs of goat (heart, liver, kidney and muscles) and the calculation of risk assessment parameters such as estimated daily intake of heavy metals (EDI), target hazard quotient (THQ) and target cancer risk (TCR). Material and Methods: Fresh samples of (heart, liver, kidney and muscles) of 20 different slaughtered goats were collected from Zango Abattoir within Kaduna....

Keywords: Health Risk Assessment, Heavy Metal, Goat, AAS, THQ, EDI, TCR

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