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Simple and Feasible Method for 67Ga Production on CS-30 Cyclotron With High Purity
Published 2025-04-01“…The distribution coefficients of Ga3+, Zn2+, Cu2+, Ni2+ and Co2+ ions in w=60% TBP resin under the action of 0.05, 0.10, 0.50, 1.00, 2.00, 4.00, 6.00 and 8.00 mol/L HCl were determined. …”
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Comparation of specific equation of fat percentage in Brazilian military women with bioimpedance and infrared interactance methods
Published 2025-04-01“…With EPE (Standard Estimate Error) of 2.7, r (Correlation Index) of 0.99 and R2 (Coefficient of Determination) of 0.99. Comparing the model with the BIA method (tetrapolar MALTRON 900), an r = 0.8 and R2 = 0.7 was obtained, while comparing with the NIR (FUTREX 5000 A/ZL), an r = 0.6 was obtained and R2 = 0.4. …”
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Age- and sex-related changes in the position of the mental foramina and age estimation methods that use these changes
Published 2024-12-01“…The results of the single regression analysis showed a positive correlation (r = 0.54) of the distance with age in men and a negative correlation (r=-0.54) in women. The mean coefficient of determination for single regression analysis was 0.26 for both sexes, which was low, making it unsuitable as a stand-alone age estimation index, although it can aid in age estimation.…”
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Data-driven vertiport siting: A comparative analysis of clustering methods for Urban Air Mobility
Published 2025-06-01“…Urban Air Mobility (UAM) has emerged as a promising solution to enhance metropolitan urban mobility. A critical determinant of UAM’s success is vertiport siting, which directly influences accessibility and travel time benefits. …”
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An Evaluation of Different Digestion Methods for the Quantitation of Inorganic Elements in Human Hair Using ICP-MS
Published 2022-01-01“…Our results demonstrated that O-MicroD, MicroD, and RT were the best performing digestion methods for coefficient of variation (CV) scores, coverage, and recovery efficiency, respectively. …”
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Simultaneous Determination of Fifteen Polyphenols in Fruit Juice Using Ultrahigh-Performance Liquid Chromatography-Tandem Mass Spectrometry Combining Dispersive Liquid-Liquid Micro...
Published 2022-01-01“…To clarify the content and distribution of polyphenols in different fruit species samples accurately, a rapid and sensitive ultrahigh-pressure liquid chromatography-electrospray ionization-tandem mass spectrometry (UPLC-ESI-MS/MS) method combining dispersive liquid-liquid microextraction (DLLME) was developed for quantitative determination of fifteen polyphenol compounds in fruit juice. …”
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Determination of Polycyclic Aromatic Hydrocarbons from Atmospheric Deposition in <i>Malva sylvestris</i> Leaves Using Gas Chromatography with Mass Spectrometry (GC-MS)
Published 2024-11-01“…The purpose of this study was to develop an analytical method for the determination of PAHs deriving from atmospheric deposition using <i>Malva sylvestris</i> leaves. …”
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Development and validation of spectrophotometric methods for estimation of arrhythmias drug-dronedarone hydrochloride in pure and dosage forms
Published 2024-12-01“…The proposed method is based on the oxidation reaction of DND with a known excess of cerium(IV) ammonium sulfate (Ce(IV)) as an oxidizing agent in acid medium, followed by the determination of the unreacted oxidant by adding a fixed amount of dye, e.g., amaranth (AM), methylene blue (MB), and indigocarmine (IC), followed by measuring the absorbance at 520, 664, and 610 nm, respectively. …”
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Effective spectral pre-processing methods enhance accuracy of soil property prediction by NIR spectroscopy
Published 2025-08-01“…Model performance was assessed through several metrics, including the coefficient of determination (R2), root mean square error (RMSE), and the ratio of performance to deviation (RPD). …”
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Case Report: Independence day, comparison of methods to estimate the onset of dispersal in large territorial birds
Published 2025-02-01“…To quantitatively assess which method best matched the reference values, we calculated the mean deviation and bias on an individual basis, also accounting for the interindividual coefficient of variation. …”
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Maize and soybean yield prediction using machine learning methods: a systematic literature review
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Approximate Analytic Solutions for the Two-Phase Stefan Problem Using the Adomian Decomposition Method
Published 2014-01-01“…By determining these coefficients, approximate analytic solutions for the model are obtained. …”
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Nodal frequency-constrained energy storage planning via hybrid data-model driven methods
Published 2025-03-01“…The energy storage capacities and locations are determined in the planning scheme based on year-round operations. …”
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Assessment for Thermal Conductivity of Frozen Soil Based on Nonlinear Regression and Support Vector Regression Methods
Published 2020-01-01“…For coarse and fine-grained soil categories, the above two models still have reliable prediction accuracy and determine coefficient (R2) ranges from 0.8 to 0.91, which validates the applicability for small sample soils. …”
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Mathematical Modelling and Optimization Methods in Geomechanically Informed Blast Design: A Systematic Literature Review
Published 2025-07-01“…Results: High-fidelity simulations delimit blast-induced damage with ≤0.2 m mean absolute error; extensions of the Kuznetsov–Ram equation cut median-size mean absolute percentage error (MAPE) from 27% to 15%; Gaussian-process and ensemble learners reach a coefficient of determination (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>R</mi><mn>2</mn></msup><mo>></mo><mn>0.95</mn></mrow></semantics></math></inline-formula>) while providing closed-form uncertainty; Pareto optimisers lower peak particle velocity (PPV) by up to 48% without productivity loss. …”
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Solving Systems of Volterra Integral and Integrodifferential Equations with Proportional Delays by Differential Transformation Method
Published 2014-01-01“…If the solutions of the problem can be expanded to Taylor series, then the method gives opportunity to determine the coefficients of Taylor series. …”
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