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Research lift coefficient on the distance between the revolving cylinders a turbulent stream
Published 2020-03-01“…The aerodynamic forces in the cross-flow of a cylinder and a system of two cylinders have been measured. A method for determining the optimal distance between the cylinders in their cross-flow has been developed. …”
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THE METHODOLOGY OF ASSESSMENT OF ECONOMIC EFFICIENCY OF INNOVATIVE PROJECTS WITH VENTURE FINANCING BASED ON REAL OPTIONS METHOD WITH FUZZY SETS ANALYSIS
Published 2017-10-01“…All of this requires the development of the theory and methods for analysis of economic efficiency of innovations and determines the high level of fundamentality of the issue. …”
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665
The effect of the method of joining layers in two-layer fabrics on their physical and mechanical properties
Published 2024-09-01“…Filling drawings of these weaves are constructed, their coefficient of connectivity is determined. Testing of materials according to physical and mechanical properties was carried out in accordance with standard methods, resulting in the values of breaking load, tensile elongation, abrasion resistance, fabric thickness, breathability and shrinkage during the final finishing being determined. …”
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666
Determination of a novel anticonvulsant drug GIZh-290 in rat plasma by liquid chromatography–tandem mass spectrometry
Published 2022-01-01“…The linearity of the method was confirmed by a high correlation coefficient of 0.999. …”
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Complex processing geophysical survey and selection of methods for detailing the geological structure of mega-reservoirs (Hayan block, of the Palmyride fold belt)
Published 2024-01-01“…The processed materials made it possible to select the most effective GWD combination for identifying the boundaries and fringe zones of sediments in the Kurrachine-Dolomite formation, considered as a mega reservoir, and to identify priority development objects similar in geological structure and reservoir properties.Conclusion. The proposed method for processing field geophysical materials (construction of correlation matrices and statistical processing of geological and field data) can be used in selecting an optimal combination of GWD for establishing the reservoir boundaries of the Kurrachine-Dolomite formation, quantifying the reservoir properties, and increasing the efficiency of the Jihar field development (mega reservoir of the Hayan block).…”
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669
Improving the Efficiency of Electric Rolling Stock Operation Through the Use of Adaptive Filtering Methods for High Harmonic Current Components in Traction Drive Systems
Published 2023-11-01“…The aim of this work is to investigate the efficiency of various adaptive filtering methods for higher harmonic components of stator currents in a vector-controlled traction drive system to improve the operation efficiency of electric rolling stock. …”
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670
Dual crop coefficient of common bean in Tangará da Serra, Mato Grosso
Published 2016-05-01“…The study used the FAO-56 dual kc method, dividing the kc into soil evaporation coefficient (ke), determined in microlysimeters, and basal crop coefficient (kcb), determined in weighing lysimeters. …”
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Determinação do coeficiente cultural (Kc) do feijoeiro (Phaseolus vulgaris L.), em Campos dos Goytacazes, RJ Determination of the crop coefficient (Kc) for common bean (Phaseolus v...
Published 2007-10-01“…<br>The evapotranspiration of a crop is one of the main information required for proper irrigation management and to develop an efficient water usage plan. Among the methods to estimate the amount of water that is consumed by plants, the use of crop coefficients (Kc), associated with estimates of the reference evapotranspiration (ETo), stands as one of the most promising. …”
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673
Permeability of Concrete and Correlation with Microstructure Parameters Determined by 1H NMR
Published 2020-01-01“…Water and gas permeability coefficients of concrete with different water-binder (w/b) ratios and admixtures were measured by a self-designed test device based on the steady-state flow method for liquid and the method of differential pressure in stability for gas, respectively. …”
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Regression Analysis in Development of Method for Isolation and Quantitative Determination of Water-soluble Polysaccharides from Sunflower Roots of One-year-old
Published 2022-02-01“…The adequacy of the model was confirmed by testing hypotheses against Pearson's χ2 criterion. The correlation coefficient derived from the values of the regression coefficient and the mean square deviation was used in determining the tightness of the overall relationship between the source and the obtained data. …”
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676
Effect of seedling size on post-planting growth and survival of five Mexican Pinus species and their hybrids
Published 2024-12-01“…Therefore, the aim was to evaluate the influence of initial morphological parameters of 2,007 nursery seedlings of these species and their hybrids on their growth and survival 44 months after planting in the Sierra Madre Occidental, Mexico. Methods Spearman’s coefficient (rs) and the unbiased conditional pseudo coefficient of determination (R2c) between each specific predictor and each response variable and their 95% confidence interval (CI95%) were determined using Random Forest, generalized linear model, and bootstrapping. …”
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Improving Orbit Prediction of the Two-Line Element with Orbit Determination Using a Hybrid Algorithm of the Simplex Method and Genetic Algorithm
Published 2025-06-01“…A hybrid algorithm of the simplex method and genetic algorithm is proposed to improve orbit determination accuracy using TLEs. …”
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678
A Method for Determining Intrinsic Mode Function Number in Variational Mode Decomposition and Its Application to Bearing Vibration Signal Processing
Published 2020-01-01“…A method called center frequency statistical analysis (CFSA) is proposed in this paper to determine K value. …”
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Determination of the Effects of Mineral on Seed Yield by Different Statistic Methods in Bread Wheat (Triticum aestivum L.) under Drought Conditions
Published 2018-12-01“…Thepurpose of this study is to determine the effect of minerals (N, P, K, Ca, Mg, S, Fe, Mn, Zn and Cu) on yield components by different statisticalmethods and this will help to understand efficiency of them in breedingprograms. …”
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