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401
Experimental and Numerical Investigation into Formation of Metro Wheel Polygonalization
Published 2019-01-01“…More than 70% of metro wheels exhibit 6th–8th harmonic-order polygonal wear; the excitation frequency of the polygonal wear is located in the 50–70 Hz interval at an operating speed of 65–75 km/h. To determine the root cause of the polygonal wear, a dynamic train behavior test is conducted immediately after wheel reprofiling. …”
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402
Optimization of four-diode equivalent circuit models for solar cells: Analytical formulation and performance enhancement
Published 2025-08-01“…In addition, the models were experimentally verified using a laboratory-scale ET 250 photovoltaic training system, further confirming their precision and applicability under real-world operating scenarios. …”
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403
An Innovative Indoor Localization Method for Agricultural Robots Based on the NLOS Base Station Identification and IBKA-BP Integration
Published 2025-04-01“…This study proposes an innovative indoor localization algorithm based on the base station identification and improved black kite algorithm–backpropagation (IBKA-BP) integration to address the problem of low positioning accuracy in agricultural robots operating in agricultural greenhouses and breeding farms, where the Global Navigation Satellite System is unreliable due to weak or absent signals. …”
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404
Design of Constant Speed Controller for Hydraulic Retarder Based on Robust Control
Published 2025-06-01“…Simulation results indicate that the high-frequency controller exhibits remarkable robustness against dynamic disturbances within the system. Additionally, when variations in vehicle mass and road gradient occur, the root mean square error of the high-frequency controller’s speed, in comparison to the fuzzy controller, decreases by 0.1157 km/h, while the maximum absolute error in vehicle speed diminishes by 0.248 km/h. …”
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405
TLP-Supported NREL 5MW Floating Offshore Wind Turbine Tower Vibration Reduction Under Aligned and Misaligned Wind-Wave Excitations
Published 2025-04-01“…The current research results may be used to design a full-scale semi-active or hybrid TVA system serving a TLP-supported floating offshore wind turbine structure.…”
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406
Study on the Structural Optimization of Diffuser Guide Vanes for LNG High-Pressure Pump Expander
Published 2025-04-01“…The guide vanes of the high-pressure pump at the Jingtang LNG receiving station frequently fail, potentially generating metal fragments that threaten the safety of downstream systems.In order to extend the service life of the guide vanes, ANSYS software was used to establish a model and conduct strength simulation calculations and fatigue simulation analysis on the diffuser guide vanes of the high-pressure pump.Results showed that cracks or fractures were more likely to occur near the hub of the impeller blades, with an increased risk of fatigue fracture at the root of the inlet edge.By changing the material from cast aluminum to forged aluminum 6061-T6, the mechanical properties were significantly improved.Additionally, it was found that when the thickness of the guide vane was increased from 3.5 mm to 5.0 mm, the membrane plus bending stress at the root was reduced by 40%to 50%.Enlarging the root fillet of the guide vane effectively reduced stress concentration,thereby decreasing the risk of crack initiation and significantly enhancing the fatigue resistance of the blade.Based on engineering application data, these improvements effectively resolved the operational issues encountered in the LNG high-pressure pump, enhancing its reliability and safety, and ensuring the stable operation of the LNG transmission system.…”
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407
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408
Intelligent Alarm Analysis for Fault Diagnosis and Management in Nuclear Power Plants
Published 2025-03-01“…Traditional alarm systems often fall short in identifying the root causes of faults, especially in complex, multi-fault situations. …”
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409
Residual Life Prediction of Pneumatic Control Valves Based on Trans-TCN-GRU Modeling
Published 2024-01-01“…Control valves, as key actuating components in process industrial systems, are widely used in major industrial fields such as coal chemical, petrochemical, and nuclear power. …”
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410
SHERA: SHAP-Enhanced Resource Allocation for VM Scheduling and Efficient Cloud Computing
Published 2025-01-01“…In order to forecast and maximize the energy efficiency in cloud systems, this paper presents a machine learning based methodology. …”
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411
FORECASTING STOCK PRICES FOR MARITIME SHIPPING COMPANY IN COVID-19 PERIOD USING MULTIVARIATE MULTI-STEP MULTI-STEP CONVOLUTIONAL NEURAL NETWORK - BIDIRECTIONAL LONG SHORT-TERM MEMO...
Published 2025-06-01“…Prediction accuracy can be assessed by incorporating four metrics into the system: Root Mean Square Error, Mean Absolute Error, Mean Absolute Percentage Error, and Median Absolute Percentage Error. …”
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412
Experimental investigation of shaft misalignment effects on bearing reliability through vibration signal analysis using machine learning and deep learning
Published 2025-09-01“…Bearing failures account for approximately 40–70% of malfunctions in rotating machinery, with shaft misalignment recognized as a critical yet underexplored root cause of these failures. Despite its practical importance, the direct impact of parallel shaft misalignment on bearing fault prediction remains unaddressed, mainly in the existing literature. …”
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413
Evaluation of Biochemical Methane Potential and Kinetics of Organic Waste Streams for Enhanced Biogas Production
Published 2024-10-01“…The biochemical methane potential (BMP) of each sample was evaluated using an automatic methane potential system (AMPTS). Operating parameters such as pH, temperature, total solids, and volatile solids were measured. …”
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414
Occurrence of C-Shaped Canal in Mandibular First and Second Molars in the Erbil Population using Cone Beam Computed Tomography
Published 2025-03-01“…Background and objective: Anatomy of the root canal system and determining the number and form of the canals are the most important steps for successful root canal therapy without post-operative complications. …”
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415
Assessing Geometry Perception of Direct Time-of-Flight Sensors for Robotic Safety
Published 2025-07-01“…Quantitative metrics including the root mean square error, mean absolute error, area difference, and others were used to evaluate measurement accuracy. …”
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416
Development of Green Fluorescent Protein-Tagged Strains of <i>Fusarium acuminatum</i> via PEG-Mediated Genetic Transformation
Published 2024-11-01“…In this study, we employed the PMT technique to establish a transformation system for the <i>F. acuminatum</i> strain FDCY-5 due to its benefits such as ease of operation, low cost, high conversion efficiency, and broad applicability. …”
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417
Artificial Soil Environment Justification for Laboratory Studies of Wear and Traction Characteristics of Soil-Cutting Working Bodies
Published 2020-09-01“…It was determined that more than 30 percent of energy costs were accounted for by breaking the root system of the vegetation cover on virgin and fallow lands.…”
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418
Research Status and Prospects of Key Technologies for Rice Smart Unmanned Farms
Published 2024-11-01“…The construction of high-standard farmland is the foundation of the physical environment of the smart unmanned farms of rice, which provides perfect operating environment for the operation of modernized smart farm machinery through the reasonable layout of the field roads, good drainage and irrigation systems, and the scientific planting structure. …”
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419
Load Optimization for Connected Modern Buildings Using Deep Hybrid Machine Learning in Island Mode
Published 2024-12-01“…Electric Vehicles (EVs) are also considered in the system. They serve as energy storage devices and, through Vehicle-to-Grid (V2G) technology, can supply power when needed. …”
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420
Machine learning models for prognosis prediction in regenerative endodontic procedures
Published 2025-02-01“…The variables applied to predict the primary outcome in REPs were ranked accordingly to their values of feature importance, including age, sex, etiology, the number of root canals, trauma type, swelling or sinus tract, periapical lesion size, root development stage, pre-operative root resorption, medicaments, scaffold, second REPs, previous root canal filling. …”
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