Search alternatives:
variable » variables (Expand Search)
coefficient. » coefficiency. (Expand Search)
efficient. » efficiency. (Expand Search)
variable » variables (Expand Search)
coefficient. » coefficiency. (Expand Search)
efficient. » efficiency. (Expand Search)
-
1261
THE BONITATION METHOD FOR ASSESSING THE FERTILITY OF THE CHERNOZEM
Published 2019-01-01“…Statistical indicators have been determined using the functions from Excel Program, such as: average, standard deviation, coefficient of variability, annual growth rate. …”
Get full text
Article -
1262
Convergence analysis of option drift rate inverse problem based on degenerate parabolic equation
Published 2025-05-01“…In this paper, we study the convergence of the inverse drift rate problem of option pricing based on degenerate parabolic equations, aiming to recover the stock price drift rate function by known option market prices. Unlike the classical inverse parabolic equation problem, the article transforms the original problem into an inverse problem with principal coefficients of the degenerate parabolic equation over a bounded region by variable substitution, thus avoiding the error introduced by artificial truncation. …”
Get full text
Article -
1263
Jacobian-Free Newton Krylov Methods for Steady and Transient Neutron Transport Models
Published 2024-06-01“…To further improve computational efficiency of comeSn_JFNK, in the JFNK solution, neutron scalar fluxes instead of neutron angular fluxes were chosen as the global solution variables. …”
Article -
1264
New Approach of Blind Adaptive Equalizer Based on Genetic Algorithms
Published 2025-01-01“…Unlike traditional methods that rely on linear programming and suffer from local minima issues, this technique utilizes a stochastic linear programming cost function with GAs for robust optimization. The proposed method termed Blind Linear Equalizer based on genetic algorithm (BLE-GA) enhances performance by leveraging a GA’s ability to handle stochastic variables, offering rapid convergence and resilience against signal noise and inter-symbol interference. …”
Get full text
Article -
1265
Integration of artificial intelligence and advanced optimization techniques for continuous gas lift under restricted gas supply: A case study
Published 2025-03-01“…In addition, the net present value (NPV) serves as the objective function. To optimize the selected input variables, including tubing inside diameter, gas injection rate, and separator pressure, various optimization algorithms such as particle swarm optimization (PSO), ant colony optimization (ACO), genetic algorithm (GA), and a Novel optimization algorithm in a gas-lift study called grey wolf optimization (GWO), were utilized considering the constraint of the limited available gas. …”
Get full text
Article -
1266
Structural network topologies are associated with deep brain stimulation outcomes in Meige syndrome
Published 2024-07-01“…The results indicated that HIG showed a higher clustering coefficient, longer characteristic path length, lower small-world index, and lower global efficiency compared with LIG. …”
Get full text
Article -
1267
Determinants of growth differentiation factor 15 plasma levels in outpatients with peripheral arterial disease
Published 2024-12-01“…Results: The multivariable analysis identified independent relations of GDF-15 with several of the included variables (adjusted R2 = 0.48). Diabetes (beta coefficient [β] of 0.37, 95% confidence interval [95% CI] 0.25 to 0.50), low-density lipoprotein (LDL) cholesterol (β = −0.22, 95% confidence interval [CI]: −0.34 to −0.09), and physical activity (β = −0.16, 95% CI: −0.25 to −0.06) had the strongest associations. …”
Get full text
Article -
1268
Long-term evolution of the calibration constant on a mobile water vapour Raman lidar
Published 2025-06-01“…We note that the use of ground-based measurements does not introduce any more uncertainty in the lidar calibration coefficient than vertical profiles obtained by radiosondes or airborne means. …”
Get full text
Article -
1269
Nonlinear Creep Constitutive Model of Rock Considering Hardening Effect
Published 2025-01-01“…To precisely capture the nonlinearity of rock creep and the law of accelerated deformation, a hardening function and a damage variable are introduced. Based on traditional rheological models, creep mechanisms, and damage laws, an accelerated creep constitutive model integrating hardening and damage effects is established. …”
Get full text
Article -
1270
Finite Difference/Fractional Pertrov–Galerkin Spectral Method for Linear Time-Space Fractional Reaction–Diffusion Equation
Published 2025-06-01“…The Pertrov–Galerkin spectral method is adapted using non-smooth generalized basis functions to discretize the spatial variable, and the L1 scheme on a non-uniform graded mesh is used to approximate the Caputo fractional derivative. …”
Get full text
Article -
1271
Maturity Classification and Quality Determination of Cherry Using VNIR Hyperspectral Images and Comprehensive Chemometrics
Published 2024-12-01“…Based on the spectral principal components, three classifiers were built to classify the maturity level: support vector machine, backpropagation neural network, and radial basis function neural network. Excellent results with a classification accuracy of 100% were obtained. …”
Get full text
Article -
1272
Approximation by interpolation spectral subspaces of operators with discrete spectrum
Published 2021-06-01“…Applications to spectral approximations of the regular elliptic operators with variable smooth coefficients in the space $L_q(\Omega)$ over an open bounded set $\Omega\subset\mathbb{R}^n$ and some self-adjoint ordinary elliptic differential operators in a bounded interval $\Omega=(a,b)$ are shown.…”
Get full text
Article -
1273
Using machine learning methods to determine a typology of patients with HIV-HCV infection to be treated with antivirals.
Published 2020-01-01“…This study was based on the Spanish HERACLES cohort (NCT02511496) (April-September 2015, 2940 patients) and involved application of different neural network models with different basis functions (product-unit, sigmoid unit and radial basis function neural networks) for automatic classification of patients for treatment. …”
Get full text
Article -
1274
Arterial hypertension and myocardial electric heterogeneity in patients with coronary heart disease
Published 2005-06-01“…Myocardial electric heterogeneity, especially in PS, correlated with left ventricular (LV) hypertrophy, LV diastolic function, and the overall functional status of cardiovascular system. …”
Get full text
Article -
1275
Task-Contingent Persistence is Related to Better Performance-Based Measures in Patients with Chronic Musculoskeletal Pain
Published 2020-01-01“…Their relationship with functioning of patients with chronic pain is debated. …”
Get full text
Article -
1276
Exploring the Future Energy Value of Long-Duration Energy Storage
Published 2025-03-01“…The negative effect of lower roundtrip efficiency on value is also found to be scenario-dependent, with the energy value in higher VRE scenarios being less sensitive to roundtrip efficiency and more supportive of longer storage durations. …”
Get full text
Article -
1277
Flexible imputation toolkit for electronic health records
Published 2025-05-01“…Pympute’s core algorithm, Flexible, intelligently selects the optimal imputation method for each variable based on its characteristics. Pympute offers a comprehensive suite of functionalities. …”
Get full text
Article -
1278
Exercise, Training & Health
Published 2022-03-01“…The highest differences between individual CVs were found in step 1, ranging from 2.9% to 11.8%.Conclusion: Stroke-to-stroke variability during rowing ergometer testing amounts to 4.7%, which is probably higher than during testing on externally controllable bicycle ergometers, where resistance is controlled as a function of cadence. …”
Get full text
Article -
1279
Optimization of household medical waste recycling logistics routes: Considering contamination risks.
Published 2024-01-01“…To enhance the realism of the simulation, traffic congestion is integrated into the vehicle speed function, reflecting the urban roads' variability. …”
Get full text
Article -
1280
Shell and tube heat exchanger optimization: A critical literature assessment and fairness-based comparative performance analysis of meta-heuristic algorithms
Published 2025-08-01“…In order to make comparisons, the objective function, decision variables and their boundary values were taken as the same. …”
Get full text
Article