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461
Modeling the position of tracked chassis in motion in the event of mechanical characteristics of separate drive electric motors of track contours
Published 2023-12-01“…The use of electric motors in the structure of a separate drive of the tracked chassis circuits with a random combination of deviations of their sliding can both enhance the factors contributing to the relative run-up of the circuits and compensate for them depending on the function of the change in the motion resistance coefficient over time. …”
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462
Zoning and Identification of Factors Affecting Illegal Livestock Grazing in Golestan National Park Using Logistic Regression
Published 2025-04-01“…The Aspect factor with a coefficient of 0.0015 was determined to be the least influential independent variable. …”
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463
Research and Development Expenditures and Economic Growth in the EU: A Panel Data Analysis
Published 2016-08-01“…The estimated model is the production function type standard growth model extended with R&D stock variable. …”
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464
PENDUGAAN FUNGSI KEUNTUNGAN DAN RISIKO USAHATANI SAWI PAHIT (Brasischa juncea) DI DESA SAMBIREJO KECAMATAN SELUPU REJANG KABUPATEN REJANG LEBONG
Published 2006-03-01“…Result of this research showed that, the average of farmer’s profit from the bitter mustard farming in sambirejo village, rejang lebong region on planting season of May/Juni are Rp.914.382,33/farm or Rp.4.747.964,79/Ha, and planting season of Feb/Maret are Rp.1.025.509,72/farm or Rp.6.698.378,53/Ha. Variable which influenced negatively and significantly on profit function of bitter mustard farming in sambirejo village, Selupu Rejang district of Rejang Lebong region on planting season of Feb/Maret and May/Juni are the land fare (X8*), production amount (X9*) and dummy variable (season plant). whereas, variables which influenced negatively and unsignificantly are the price of seed (X1*), the price of urea (X2*), but the price of dursban (X5*) influence positively and also has tendency to increase the profit of bitter mustard profit. …”
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465
Magnetohydrodynamic Maxwell hybrid nanofluid flow and heat transfer over a moving needle in porous media
Published 2025-06-01“…The Maxwell fluid parameter also influences the fluid speed and thermal efficiency of the fluid. Results reflect that the skin friction coefficient reduces and the Nusselt number or heat transfer rate increases with increasing Prandtl number. …”
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466
Research on Sealing Performance of Supercritical Hydrogen Cylindrical Seals Based on Multi-Objective Optimization of Spiral Grooves
Published 2025-07-01“…Aimed at hydrogen turbines, this research employs advanced noncontact cylindrical sealing and optimizes its sealing structure to enhance efficiency. Therefore, this paper considers the variable density and viscosity cylindrical sealing model with actual gas effects and explores the impact of groove parameters on load capacity, leakage, and friction force under two different temperature and pressure conditions. …”
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467
Nonparametric Test for Logistic Regression with Application to Italian Enterprises’ Propensity for Innovation
Published 2024-09-01“…In this work, a nonparametric method is proposed to jointly test the significance of the regression coefficient estimates in a logistic regression model and identify which explanatory variables are effective in predicting the binary response. …”
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468
The Influence of Wind Speed on Pneumatic Conveying Characteristics of Solid Feed in Horizontal Pipe by Simulation and Experiment
Published 2025-01-01“…The results show that when the conveying wind speed increases from 18 m/s to 20.6 m/s, the solid feed changes from sedimentary flow to suspended flow, the particle accumulation gradually decreases and the conveying efficiency is significantly improved. The particle slug greatly reduces the collision and friction between the internal particles and the pipe and reduces the crushing rate to a certain extent. …”
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469
Farm-Specific Risk Analysis in Dairy Farming: A Case Study from Turkey
Published 2016-07-01“…The relationship of mean risk aversion coefficient, calculated by using negative exponential function, with both average gross margin and gross margin standard deviation values determined for each farm was examined. …”
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470
Towards the Understanding of Damage Mechanism of Cemented Tailings Backfill
Published 2021-01-01“…The CTB damage constitutive model, which takes the corrected coefficient of damage variable into consideration, and peak toughness are introduced to investigate the effects of fine tailings contents, curing ages, curing temperatures, and water-to-cement ratios (w/c) on the damage evolution laws, damage (DP), and specific energy (GP) at peak stress point of CTB. …”
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471
Elastic Stress and Plastic Zone Distributions around a Deeply Buried Tunnel under the Nonhydrostatic Pressure
Published 2022-01-01“…Based on Muskhelishvili’s complex variable function, the analytical solution for the elastic stress around a deeply buried noncircular tunnel under the nonhydrostatic pressure is firstly derived. …”
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472
Skin Lesion Image Segmentation Algorithm Based on MC-UNet
Published 2025-01-01“…Finally, the network’s segmentation accuracy is improved through the use of a new loss function called MixLoss, which combines BceLoss and DiceLoss. …”
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473
Path integral for multiplicative noise: Generalized Fokker-Planck equation and entropy production rate in stochastic processes with threshold
Published 2025-05-01“…Then, using the Parisi-Sourlas method, we estimate the transition probability between states of a stochastic variable [X(t)] based on the cumulant-generating function (K_{η}) of the noise. …”
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474
Selected Aspects of Heat Transfer Study in a Gun Barrel of an Anti-Aircraft Cannon
Published 2023-06-01“…In each zone, the heat transfer coefficient, as a function of the time hi(t) and bore gas temperature as a function of the time Tg(t) to the cannon barrel for given ammunition parameters, was developed. …”
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475
Analysis of Heat Transfer Performance in a Brayton Cycle Recuperator
Published 2021-02-01“…The characteristic curves of heat transfer rate, effectiveness, convection coefficient and Colburn factor are built for each of the studied geometries in function of the Reynolds number. …”
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476
A Model-Driven Approach for Estimating the Energy Performance of an Electric Vehicle Used as a Taxi in an Intermediate Andean City
Published 2024-12-01“…The results demonstrated a Pearson correlation coefficient of 0.93, indicating a strong positive linear dependence between the variables. …”
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477
Predicting the Cetane Number of Biodiesel using two AI-Models: the Gradient-based ANN and ANN Optimized by Genetic Algorithm
Published 2024-04-01“…The learning function, transfer function, number of hidden layers, and number of neurons in the hidden layers are some of the optimized parameters in the current AI-models. …”
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478
Cálculo de la fuerza de fricción necesaria para extraer el coque de hornos solera para el diseño de prototipos de máquinas de empuje
Published 2022-07-01“…An experimental validation was performed using a proposed methodology to calculate the force required by the motor to extract coke, based on variables such as voltage, amperage, efficiency, and power factor. …”
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479
Improved basal drag of the West Antarctic Ice Sheet from L-curve analysis of inverse models utilizing subglacial hydrology simulations
Published 2025-06-01“…Since we cannot directly measure basal properties on a large scale, inverse models can be used to infer the basal drag coefficient by minimizing a cost function that depends on a velocity misfit and a regularization term.…”
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480
The reproducibility of 31-phosphorus MRS measures of muscle energetics at 3 Tesla in trained men.
Published 2012-01-01“…Estimates of mitochondrial function were variable, but experimentally useful. …”
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