Elasto-optic Effect and Its Spatial Anisotropy in Ca3TaGa3Si2O14 Crystals

The photoelasticity of the Ca3TaGa3Si2O14 (CTGS) crystal was investigated using an interferometric technique based on a single-pass Mach-Zehnder interferometer. To illustrate the accuracy of piezo-optic coefficient determination, the most sample orientations for piezo-optic investigations were used. All the coefficients pik of the elastic-optic matrix are computed using the matrices of piezo-optic coefficients and elastic stiffness […]

Doubly-charged Negative Ion of C60 Molecule

An electronic structure of the doubly-charged negative ion is depicted in the Dirac- and Lorentz-bubble potential models C60A variational method was used to investigate it. The overall energy of the system is negative even in the first approximation of this method when a trial wave function of the two electrons is represented as a product […]

Phase Composition and Stress in Proton Exchanged Waveguide Layers in LiNbO3 and LiTaO3

Based on their mode and IR spectra, the phase composition of Li1-xHxNbO3 and Li1-xHxTaO3 waveguide layers created at various variations of the proton exchange (PE) technology and having complicated phase composition with varied quotas of the phases present is investigated. The optical integral approach is used to calculate the intrinsic stress induced by crystal lattice […]

Estimating the Availability of Underground River Water Based on Rainfall in the Maros Karst Region, South Sulawesi

Water resources determine the life around the Maros Karst region, which covers 43.750 hectares. In the Maros Karst, water is found in the rock strata or in the cave’s underground river. Primary and secondary data were employed in this investigation. The medium’s characteristics are included in primary data. Secondary data includes BMKG rainfall data, PSDA […]

Einstein’s Elevator in Cosmology

In comoving coordinates, the metrics of gravitational and cosmological models are brought into canonical form. From this, the FWR curvature parameter is calculated, and it is demonstrated that k = 0 does not correspond to a flat model, but to a spatially positively curved geometry with free-falling reference systems. This is also in line with […]

Structural Studies of ZnO Nanostructures and Nano Powders: A Recent Approach

Nanostructures and nanoparticles have attracted a lot of attention from scientists because of their unique features. Zinc Oxide has piqued the curiosity of researchers because it might be utilised as a low-cost alternative to Si and GaN. Because of its piezoelectric and transparent conducting capabilities, zinc oxide is one of the most promising semiconducting materials. […]

Investigation the Effect of Composition and Annealing on Electrodeposited CoxPt1- X Nanowires

By electrodepositioning highly ordered CoxPt1-x (x 0.82) magnetic nanowire arrays of 60 nm diameter into the pores of anodic aluminium oxide (AAO) templates, highly ordered CoxPt1-x (x 0.82) magnetic nanowire arrays of 60 nm diameter have been effectively produced. The electrodeposition approach was chosen because it is one of the most simple, cost-effective, and easy-to-control […]

Energy Efficiency Improvement in DC Railway Systems: The State of the Art

In the context of worldwide concerns about decreasing CO2 emissions by minimising energy use and energy loss, this study focuses on the relevant subject of boosting energy efficiency in DC railway systems. In a detailed review, the main achievements in this complicated subject are synthesised and addressed, with a focus on the implementation and application […]

Serological Thymidine Kinase1 is a Biomarker for Early Risk of Tumours Progression —Real World Data from a Health Screening Study on a Cohort of 35,365 People

STK1p, a serological thymidine kinase 1 (STK1p) proliferation marker, is a reliable prognostic, monitoring, and relapse marker. The application of STK1p in health screening for early diagnosis of pre-malignant and malignant disorders was examined in this study. The research was based on 35,365 people who took part in four separate health screening studies in China […]

Electrochemical Properties of MnO2 Nanoparticle Obtained from Waste Battery Powder by Reductive Acid Leaching Method

The goal of this study is to extract manganese dioxide (MnO2) nanoparticles from spent battery waste using environmentally safe leaching materials. Atomic Absorption Spectroscopy was used to determine the concentration of metals (AAS). Energy Dispersive X-ray analysis (EDAX), X-ray Diffractometer (XRD), scanning electron microscopy (SEM), and Fourier transform Infrared Spectroscopy (FTIR) were used to confirm […]