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5281
Machine learning-driven design of wide-angle impedance matching structures for wide-angle scanning arrays
Published 2025-05-01“…Optimal WAIM parameters are efficiently determined using a genetic algorithm (GA). …”
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5282
The Effectiveness of Instruction Based on the Four-Component Instructional Design (4C-ID) Model on Meaningful Learning and Critical Thinking in Sixth-Grade Students of Ardabil
Published 2025-01-01“…The sample size was determined to be 40 students, using a non-random convenience sampling method from two sixth-grade classes in Ardabil. …”
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5283
Forecasting Inflation Rate Using Support Vector Regression (SVR) Based Weight Attribute Particle Swarm Optimization (WAPSO)
Published 2018-11-01“…Determination of these parameters can be done by optimization, to obtain optimal forecasting of SVR method. …”
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5284
MECHANICAL CALCULATION OF FLEXIBLE WIRES WHEN THE CONCENTRATED FORCES ARE REPLACED BY A DISTRIBUTED LOAD
Published 2018-04-01“…A relationship between the load factors, the increase of the sag and the coefficient of concentrated forces is established. The formula has been deduced for determining the error in the replacement of concentrated forces by a uniformly distributed load along the span as a function of the number of concentrated forces and the coefficient of concentrated forces. …”
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5285
OPTIMIZATION OF PARAOXONASE ORGANOPHOSPHATASE ACTIVITY ASSESSMENT IN MOUSE PLASMA USING PARAOXON-ETHYL
Published 2025-04-01“…Enzyme activity was calculated using a molar extinction coefficient of 18290 M⁻¹cm⁻¹, and protein concentration was determined by the Bradford method. …”
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5286
The proposed model of the body of knowledge of digital transformation for the Central Bank of the Islamic Republic of Iran
Published 2025-06-01“…After conducting the content validity of the designed indicators in the next step, the construct validity was checked. To determine construct validity, confirmatory factor analysis was used, which is a sub-branch of structural equation modeling, a method for examining construct validity in studies where the measured indicators are a questionnaire with quantitative and qualitative items. …”
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5287
Pharmacoeconomic analysis of using drugs containing mycophenolic acid in kidney transplant recipients in the context of domestic pharmaceutical market
Published 2015-08-01“…The use of mycophenolic acid (MPA) in patients after kidney transplantation made it possible to achieve significant results in reducing the number of acute rejection of kidney in recipients, and increasing the long-term survival of transplant. Methods and results. With the aim of evaluation of the clinical and economic feasibility of conversion kidney transplant recipients from EC-MPS to MMF in the setting of Ukrainian pharmaceutical market, pharmacoeconomic cost minimization method has been investigated a coefficient of «missed opportunities» in the conversion to a less expensive therapy has been calculated, and the analysis of the impact on the budget has been performed. …”
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5288
Digital technology for spectral analysis of oscillation parameters
Published 2022-06-01“…The distortion of the frequency spectrum of oscillations is eliminated by suppressing its side lobes using window filters. To compare the efficiency of different windows, the following special parameters are used: width of the main lobe of the frequency spectrum; coefficient of relative expansion of the main lobes; maximum relative level of side lobes; coefficient of relative attenuation of signal energy. …”
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5289
Analysis of Machine Learning Performance in Spatial Interpolation of Rainfall Data
Published 2025-01-01“…Therefore, this study aims to analyze the performance of machine learning algorithms, including artificial neural networks, comparing them to the Inverse Distance Weighting method. The accuracy of the models was evaluated using the coefficient of determination, root mean square error, and concordance index, to confirm the effectiveness of these methodologies for maximum daily annual precipitation data. …”
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5290
Comparative Study of Wellhole Surrounding Rock under Nonuniform Ground Stress
Published 2019-01-01“…Then, according to the principle of the same coefficient being equal, the relationship equation between the direction eigenvalue and the angle coefficient is obtained, from which the specific expression of the special solution of the equation can be determined. …”
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5291
The impact of coarse aggregate mineral compositions on skid resistance performance of asphalt pavement: A comprehensive study.
Published 2024-01-01“…Additionally, macroscopic adhesive friction coefficients between polished surfaces of three types of rock slabs (basalt, limestone, granite) and rubber were determined using a pendulum friction tester. …”
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5292
CONTROLLING SENSITIVITY OF THE SENSOR WITH DIFFERENTIAL ELECTROSTATIC TRANSDUCERS
Published 2015-12-01“…It is shown that their boundaries are determined by the value of the coefficient of asymmetry, as well as by the value of the resonant frequency of the PM. …”
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5293
Validation of a Probabilistic Mathematical Model for Soybean Seed Separation in a Gravity Column
Published 2024-09-01“…During bar vibration, the functions of the bending moment with vertical coefficients a = –30, b = –31.9, and horizontal coefficients a ̃= – 0.58, b ̃= –1.47 Pascal to the power of negative one per meter to the power of negative one, yield a fairly high statistical correlation between the developed mathematical model and experimental values (coefficient of determination 0.96). …”
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5294
Inversion Study of Hydrogeological Parameters for Metro Foundation Pit Confined Aquifiers Based on Surrogate Modeling
Published 2025-07-01“…[Objective] To enhance the safety of metro station foundation pit construction, it is essential to accurately determine the groundwater hydrogeological parameters, improving the accuracy of permeability and storage coefficient in confined aquifers particularly. …”
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5295
离心式通风机叶轮CAD模块开发
Published 2009-01-01“…The internal relation between a large number of existing aerodynamic sketches and performance parameters of centrifugal fan is analyzed and investigated by means of statistical method,the correspondence relation between speed coefficient and diametral quotient,impeller outlet breadth and diametral quotient is found.A new method which determined the main geometric parameters of impeller is put forward.On the base of the software of CAD,the CAD module of impeller of centrifugal fan with VBA using the parametric drawing technology is developed,and the automatation of design and drawing of impeller is realized,efficierry and the quality of drawing are improved.…”
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5296
BAYESIAN ESTIMATE OF TELECOMMUNICATION SYSTEMS PREPAREDNESS
Published 2021-02-01“…The parameters of the a priori information can be determined by different methods or on the basis of sufficient statistical data. …”
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5297
Research on Walnut (<i>Juglans regia</i> L.) Yield Prediction Based on a Walnut Orchard Point Cloud Model
Published 2025-04-01“…By combining these morphological features with statistical models and machine learning methods, a prediction model between tree morphology and yield is established, achieving prediction accuracy with a mean absolute error (MAE) of 2.04 kg, a mean absolute percentage error (MAPE) of 17.24%, a root mean square error (RMSE) of 2.81 kg, and a coefficient of determination (R<sup>2</sup>) of 0.83. …”
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5298
Thermal Stress Analysis of Axle Mounted Disc Based on ANSYS for CRH2 EMUs
Published 2018-01-01“…According to the energy conservation method, the heat flux density applied to the surface of the brake disc was simplified and the relationship between the average forced convective heat transfer coefficient and the average natural convective heat transfer coefficient was determined. …”
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5299
Thermoelectric system for cooling and air conditioning in passenger cars
Published 2025-01-01“…The aim of the study is to develop a design of a thermoelectric system (TES) for cooling and air conditioning in the passenger compartment of a car, its calculation, analysis of parameters and electrical and thermal characteristics. Method. The study is based on the methods of natural and computational modeling of air conditioning and life support systems in order to find optimal solutions for efficiency, reliability and service life of low-temperature installations, machines and devices. …”
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5300
Investigation of the substrate properties of fluorescently labeled pyrimidine triphosphates in recombinase polymerase amplification
Published 2024-11-01“…The following values of the substrate efficiency parameters were determined: amplification efficiency (kinetic indicator), normalized product yield, and embedding coefficient.Conclusions. …”
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