Decision tree (DT)
DT Regression serves as an ML model employed for forecasting continuous numerical values. The algorithm builds a hierarchical model that divides the dataset into segments guided by the values of specific features. This process…
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Improved performance of carbon-based perovskite solar cells using a multi-walled carbon nanotubes/Zn(COO)2 nanocomposite
The FTIR spectra of the precursor, zinc oxalate dihydrate, were recorded in the range of 4000–400 cm−1 (see Fig. 1a). A broad absorption band at 3428–3104 cm⁻1 is attributed to the ν(O–H) stretching mode. Other notable bands include…
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A novel acidic deep eutectic solvent for sustainable and efficient coumarin synthesis
Smith, E. L., Abbott, A. P. & Ryder, K. S. Deep eutectic solvents (DESs) and their applications. Chem. Rev. 114 (21), 11060–11082 (2014).
Google Scholar
Hansen, B. B. et…
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Synthesis and olfactory evaluation of (±)-β-irone
General information
Unless otherwise stated, commercial solvents and reagents were used as received. Solvents and reagents were purchased from TCI, FUJIFILM Wako Chemicals, and Sigma-Aldrich. Methyltrioxorhenium was prepared according to the…
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In space fabrication of Janus base nano matrix for improved assembly and bioactivity
Mission details
The Ax-2 mission was launched on 21 May 2023, from Launch Complex 39 A at the Kennedy Space Center. Aboard a Falcon 9 rocket, the crew of Peggy Whitson, Rayyanah Barnawi, John Shoffner, and Ali Alqarni then docked and boarded the…
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A clean self-diverting acid for carbonate reservoir in deep wells at high temperatures and its performance evaluation
Viscothermal behavior
The viscosity-temperature relationship is a crucial performance indicator for acid. The apparent viscosity of clean self-diverting acid gradually rises with the increase in temperature, eventually reaching a maximum value….
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Osteoporosis in adjacent cervical segments exacerbates disc herniation
Clinical follow-up data
This study was approved by the Ethics Committee of Shanxi Norman Bethune Hospital. Informed consent was obtained from all participants. This study included all patients hospitalized in our hospital from January 2014 to…
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Chirality encoding in resonant metasurfaces governed by lattice symmetries
Kelvin, W.T. The Molecular Tactics of a Crystal 27. (Clarendon Press, Oxford, 1894).
Caloz, C. & Sihvola, A. Electromagnetic chirality, Part 1: the microscopic perspective [Electromagnetic Perspectives]. IEEE Antennas Propag. Mag. 62, 58–71…
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Generation of large amplitude phonon states in quantum acoustics
Experimental setup
Our device comprises a flip-chip ℏBAR architecture with two bonded device chips7,12,15,16,28,29. We have implemented a fully on-chip integration, which can multiplex different devices on a single silicon chip18,30. A single…
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