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Monitoring and predicting ground vibration levels during blasting operations is essential to safeguard mining sites and surrounding communities. This study introduces an IoT-based ground vibration monitoring device specifically designed for limestone mining operations, combined with machine learning algorithms to predict ground vibration intensity. The primary aim is to provide an efficient predictive tool for anticipating hazardous vibration levels, enabling proactive safety measures. A comparative analysis with the industry-standard Minimate Blaster indicates high accuracy of the IoT device, with percentage errors as low as 0.803% across multiple blasts. The study also employed Support Vector Regression (SVR), Gradient Boosting Regression (GBR), and Random Forest (RF) algorithms to predict Peak Particle Velocity (PPV) values. Among these, the Random Forest model outperformed the others, achieving an R score of 0.92, Mean Absolute Error (MAE) of 0.21, and Root Mean Squared Error (RMSE) of 0.31. These findings underscore the reliability and predictive accuracy of the IoT-integrated Random Forest model, suggesting that it can significantly contribute to enhancing safety and operational efficiency in mining. The research highlights the potential of IoT and machine learning technologies to transform ground vibration monitoring, promoting safer and more sustainable mining practices.
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http://dx.doi.org/10.1038/s41598-025-86827-w | DOI Listing |
ACS Omega
September 2025
School of Chemical Engineering, Inner Mongolia Key Laboratory of Theoretical and Computational Chemistry Simulation, Inner Mongolia University of Technology, Hohhot 010051, P. R. China.
The incorporation of transitional elements into silicon or germanium-based semiconductor clusters not only notably improves their structural stability but also endows them with unprecedented multifunctionalities. In this work, the structural, vibrational, and electronic properties for copper-doped silicon and germanium cation clusters Cu (X = Si or Ge, = 6-16) are systematically investigated. The ground-state structures are identified using the PBE0 and mPW2PLYP method combined with a global search technique.
View Article and Find Full Text PDFJ Chem Theory Comput
September 2025
International Center for Quantum and Molecular Structures, Faculty of Physics, Shanghai University, Shanghai 200444, China.
The representation of the electronic structure of benzene is important for understanding the properties of planar and monocyclic organic carbon compounds. Resonant Kekulé and conjugated structures based on localized and delocalized electronic theories, respectively, can be used to depict the ground state of benzene; however, depictions of its electrons vibrating in the excited states remain to be clarified. This paper presents a novel algorithm for exploring the three lowest lying vertically singlet excited states of benzene, focusing on the electronic excitations between occupied π and unoccupied π* orbitals.
View Article and Find Full Text PDFJ Phys Chem A
September 2025
Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.
The rotational spectra and analysis of the two lowest-energy vibrationally excited states, ν (A', 126 cm, MP2) and ν (A″, 133 cm, MP2), of -1-cyano-1,3-butadiene from 130 to 375 GHz is presented. The state symmetries allow and type Coriolis coupling, the effects of which are observed due to the close energy spacing of these states. A combined total of 6744 transitions were modeled (σ < 60 kHz) with a partial-octic two-state A-reduced Hamiltonian including eight coupling parameters (, , , , , , , and ).
View Article and Find Full Text PDFDermatol Surg
September 2025
All authors are affiliated with the Department of Dermatology, Dr. D.Y. Patil Medical College, Hospital and Research Centre, Pimpri, Pune, Maharashtra, India.
Background: Vibration-assisted anesthesia, grounded in the gate control theory, offers a nonpharmacologic alternative to reduce pain; however, real-world dermatologic data remain sparse.
Objective: To evaluate the efficacy of a novel wearable vibrating kinetic anesthesia (VKA) device in reducing pain during dermatologic procedures, using a split-lesion, intrapatient-controlled design.
Methods: In this prospective observational study, 629 patients underwent dermatologic procedures.
Chem Sci
August 2025
State Key Laboratory of Chemical Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
We report time-sliced velocity map imaging studies of the methyl (CH) and electronically excited sulfur (S(D)) fragments formed following the photoexcitation of jet-cooled CHSH molecules in the 2A'' ← X̃ A' absorption band (. at wavelengths in the range 190 ≤ ≤ 210 nm). Analyses of images of CH fragments in their = 0, 1 and 2 vibrational levels confirm the perpendicular parent transition dipole moment and prompt bond fission and show that the ground state SH(X) partners are formed with an inverted vibrational population distribution, peaking at = 2 at the shortest excitation wavelengths investigated.
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