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The present study proposes a new approach for determining the concentration of acids. The method is based on the combination of Monte Carlo simulation and artificial neural network (ANN) technique for predicting the concentration of acids. Firstly, a Monte Carlo simulation model is validated based on the comparison of simulation data with experimental data. Then, the whole data derived from the Monte Carlo simulation using the MCNP code was used to train the ANN model. The trained ANN model was used to predict the percentage concentrations of 14 acid samples, which yields the maximum relative deviation between the predicted and the reference concentrations is less than 3.5%.
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http://dx.doi.org/10.1016/j.apradiso.2020.109563 | DOI Listing |
Ecotoxicol Environ Saf
September 2025
Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China.
Despite global phase-out initiatives, legacy polychlorinated biphenyls (PCBs) remobilize in marine ecosystems as secondary emission sources, posing ecotoxicological and human health risks emerge through cross-trophic dietary exposure pathways. This study aimed to systematically examined the distribution, trophic transfer properties, and health risks of PCBs in six fish and eight invertebrate species from the Beibu Gulf in southern China, by stable isotope analysis, hierarchical cluster analysis, and Monte Carlo simulation. The ΣPCBs concentrations ranged from 0.
View Article and Find Full Text PDFBiol Trace Elem Res
September 2025
Laboratório de Testes Farmacológicos E Toxicológicos - LEFT, Universidade Federal Do Rio Grande, Instituto de Ciências Biológicas, Av. Itália Km 8 Bairro Carreiros, CEP 96203-900, Rio Grande, Rio Grande Do Sul, Brasil.
This study aimed to evaluate fluoride concentrations in a variety of commonly consumed teas and Herbal infusions in Brazil and assess potential Health risks associated with their ingestion. A total of 21 samples were analyzed, including 12 loose-leaf and 9 commercially bagged products. Fluoride quantification was performed using a validated spectrophotometric method, and a deterministic and probabilistic human Health risk assessment was conducted.
View Article and Find Full Text PDFJ Cancer Res Clin Oncol
September 2025
Cancer Treatment and Nuclear Cardiology Department, Al Azhar University, Cairo, Egypt.
Background: High-dose-rate (HDR) brachytherapy is essential in the treatment of locally advanced cervical cancer. While Iridium-192 (Ir-192) is commonly used, its short half-life imposes logistical and financial constraints, particularly in low- and middle-income countries (LMICs). Cobalt-60 (Co-60), with a longer half-life and lower operational costs, is a viable alternative.
View Article and Find Full Text PDFJ Acoust Soc Am
September 2025
Department of Physics, University of Louisiana at Lafayette, Lafayette, Louisiana 70503, USA.
A method is presented for determining the significant parameters, maximum wind speed and radius of maximum wind speed, of the surface winds associated with a hurricane. The method is based on Bayesian inversion, using Markov chain Monte Carlo sampling. Underwater acoustic measurements are used to estimate parameters in the axisymmetric Holland model for hurricane surface winds.
View Article and Find Full Text PDFChaos
September 2025
School of Mathematics and Statistics, Northwestern Polytechnical University, Xi'an 710129, People's Republic of China.
Vibro-impact systems exhibit non-smooth characteristics and pose significant challenges for analysis. Non-smooth coordinate transformations are widely recognized for their ability to convert vibro-impact systems into systems with continuous trajectories, thereby enabling the application of some classical methods. This paper introduces an improved non-smooth coordinate transformation method [Su et al.
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