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7221
Research on the vibration test load spectrum for bogie frame-mounted tractor motor based on on-track tests
Published 2023-01-01“…The test load spectrum was then extended across the life-cycle running mileage; the maximum load amplitude under the life-cycle running mileage was inferred depending on the consistency in the characteristic parameters of the load spectrum, to confirm the life-cycle load spectrum. Referring to the method defined in FKM, the variable amplitude cycle coefficient was calculated, the calculation method of the equivalent constant amplitude load was determined for the corresponding variable amplitude cycle, and the constant amplitude load spectrum was constructed for the vibration load fatigue test of the frame-mounted traction motor. …”
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7222
Attention-based BiLSTM-XGBoost model for reliability assessment and lifetime prediction of digital microfluidic systems
Published 2025-07-01“…The model achieved a mean absolute percentage error (MAPE) of 1.6464, Root mean squared error (RMSE) of 0.3667, mean absolute error (MAE) of 0.2557, and a coefficient of determination (R-squared) of 0.9949. …”
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7223
Multi-Fidelity Machine Learning for Identifying Thermal Insulation Integrity of Liquefied Natural Gas Storage Tanks
Published 2024-12-01“…Three machine learning algorithms—Multilayer Perceptron, Random Forest, and Extreme Gradient Boosting—were evaluated to determine the optimal implementation. This approach provides a reliable method for the real-time monitoring of thermal insulation integrity in liquefied natural gas storage tanks, contributing to improved industrial safety and operational efficiency.…”
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7224
An Improved Physics-Informed Neural Network Algorithm for Predicting the Phreatic Line of Seepage
Published 2023-01-01“…The measured data are converted into a quadratic regular term and added to the loss function as feature data to guide the update process for the weight and bias coefficient of each neuron in the neural network. A typical geotechnical problem concerning seepage phreatic line determination in a rectangular dam is analyzed to demonstrate the efficiency of the improved method. …”
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7225
Socio-Economic Factors of Population Reproduction in Russia and in the Context of Federal Districts
Published 2023-05-01“…In the course of the work, such statistical research methods as tabular and graphical methods, analysis of indexes of dynamics series were used.Results. …”
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7226
Forecasting Electricity Production in a Small Hydropower Plant (SHP) Using Artificial Intelligence (AI)
Published 2024-12-01“…Finally, after applying forecast quality measures of Mean Absolute Error (MAE), Mean Absolute Percentage Error (MAPE), and Coefficient of Determination (R<sup>2</sup>), the most effective model was indicated. …”
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7227
Removal of trihalomethanes from activated Napier grass-derived adsorbent using liquefied gas and chemical pretreatment
Published 2025-04-01“…Besides, this work aimed at improvement of efficiency and decrease costs associated with the removal of trihalomethanes.METHODS: The application of chemical pretreatments with sodium hydroxide, phosphoric acid, and ferric nitrate resulted in the generation of an adsorbent obtained from Napier grass. …”
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7228
The Analysis of Driving Factors of Farm Land Equipment to Sprinkler Irrigation Systems (Case Study: the Villages of Ravansar Township)
Published 2015-11-01“…The main research tool is a researcher-made questionnaire, whose validity, reliability and Cronbach's alpha coefficient were confirmed by university professors and relevant experts Wilcoxon test has been used to determine the effects of sprinkler irrigation systems on the farmers’ activities. …”
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7229
BUN‐to‐ALB ratio as an effective predictor of 30 day mortality in ADHF patients in eastern China
Published 2025-08-01“…ROC curve analysis determined that the predictive efficiency of BAR for short‐term mortality in ADHF patients was ~84%, with an area under the ROC curve (AUC) of 0.84. …”
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7230
Immobilization of Oat Bran Polyphenols in Complex Coacervates of Whey Protein and Malthodextrin
Published 2020-10-01“…After that, the mixes were treated by ultrasonication and 10% w/w of guar gum solution as double wall material. The encapsulation efficiency (EE) was determined as a ratio of encapsulated phenolic content to total phenolic content. …”
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7231
First-principles study of structural, elastic, electronic and optical properties of XRbCl3 (X = Ca, Ba) perovskite compounds
Published 2025-03-01“…The optimized lattice parameters were determined to be 5.83 Å and 5.77 Å for XRbCl3 (X = Ca, Ba), respectively. …”
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7232
Predicting Endpoint Temperature of Molten Steel in VD Furnace Refining Process Using Metallurgical Mechanism and Bayesian Optimization XGBoost
Published 2024-11-01“…If the endpoint temperature is too low, the molten steel must be reheated in the ladle furnace (LF), severely impacting production efficiency. Therefore, the refining endpoint temperature significantly influences the quality of molten steel, production efficiency, and continuous casting. …”
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7233
Parameter Sensitivity Analysis and Algorithm Improvement of Optimization Scheduling Model for Cascade Pumping Stations
Published 2024-01-01“…The proposed optimal scheduling method of cascade pumping stations based on TRUN could effectively improve the current operating efficiency of the system, and the efficiency of the optimization scheme calculated by TRUN was better than that obtained by RUN, TPSO, PSO, TGA and GA, which demonstrated that the improved algorithm could be applied to the scheduling decision-making of cascade pumping stations and had excellent solving performance. …”
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7234
Calibration and experiments of discrete element flexible model parameters for kiwifruit stalk
Published 2024-12-01“…First, physical experiments were conducted to determine the intrinsic and contact parameters of kiwifruit stalk. …”
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7235
Performance assessment of grid-forming converters frequency support during disturbances in active distribution networks
Published 2025-03-01“…To determine the gain of the controller, the Result adaptive PID controller is performed, and its performance is compared to the classical PID controller based on the trial/error method. …”
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7236
Measurement of tepotinib by UPLC‒MS/MS and its interaction with naringenin in rats
Published 2024-11-01“…Excellent linearity was shown in the range of 0.1–500 ng/mL, and the coefficient of correlation was > 0.99. Notably, the lower limit of quantification (LLOQ) for tepotinib was determined to be 0.1 ng/mL. …”
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7237
Validating the diagnostic accuracy of medical certification: a population-level comparison between verbal autopsy and Saudi medical records causes of death of deceased with type 2...
Published 2024-12-01“…Background In contexts where certifying causes of death (COD) is inadequate – either in industrialized or non-industrialized countries – verbal autopsy (VA) serves as a practical method for determining probable COD, helping to address gaps in vital data. …”
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7238
TEACHERS' VOLITION, INSTRUCTION AND CORRECTION STRATEGIES FOR TEACHING STUDENTS' WITH BEHAVIOURAL PROBLEMS IN GENDER- SPECIFIC SECONDARY SCHOOLS IN ANAMBRA STATE- NIGERIA
Published 2024-07-01“…The reliability of the instrument was determined using Cronbach alpha method and an alpha coefficient of 0.78 was obtained. …”
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7239
Investigating the farmers' perception towards the creation and development of diversification components in economic activities: the case of rural areas of Baghlan Jadid district o...
Published 2024-12-01“…In this research, the sample size was determined using Cochran's formula of 363 people, which was done by multi-stage sampling method. …”
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7240
Identification of dynamics for machining systems
Published 2024-12-01“…The paper proposes a method for identifying such dynamic parameters of the machining system, which include natural vibration frequencies, vibration damping coefficients, and stiffness of the replacement model of single-mass system in the direction of the machine-CNC coordinate axes. …”
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