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2941
A vision model for automated frozen tuna processing
Published 2025-01-01“…Experiments show that YOLOv8m-FusionSeg achieves an mAP@0.5 of 93.3%, while YOLOv8s RSF achieves an mAP@0.5 of 96.1%, with a mean absolute error (MAE) of 1.81 degrees in angle estimation, significantly outperforming other methods. …”
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2942
Investigating Rotor Conditions on Wind Turbines Using Integrating Tree Classifiers
Published 2022-01-01“…Five defects were reported for the diagnosis study of defective wind turbine rotor blades, and the considered defects are blade crack, erosion, loose hub blade contact, angle twist, and blade bend. The statistical features have been drawn from the recorded vibration signals, and the important features was selected through J48 classifier. …”
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2943
Design optimization of the podded propulsor considering pod housing drag and propulsion motor performance
Published 2025-01-01“…Sensitivity analysis revealed that the stator outer diameter and fore taper angle are key factors influencing motor performance and drag, respectively. …”
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2944
Analytical Verification of the Normal Vector Determination Methods for Planar Magnetic Structures
Published 2025-01-01“…The estimated normals of the in situ PMS discontinuities from the cross-product method form angles between 10° and 20° with the predicted PMS normals from MVABC. …”
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2945
Effects of Ozone Pretreatment and Lauric Acid Modification on the Structure and Properties of Banana Starch
Published 2024-12-01“…The results of contact angle and thermogravimetric (TG) analysis demonstrated that the hydrophobic properties and thermal stability of the complexes were improved. …”
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2946
The Effect of Joint Hypermobility Syndrome on DOMS and Recovery Time
Published 2024-02-01“…Visual analog pain scale (VAS), McGill pain scale, resting arm angle, girth, and the pressure pain threshold, all domains of DOMS, were measured over a five-day period. …”
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2947
An Improved Blade Vibration Parameter Identification Method considering Tip Clearance Variation
Published 2021-01-01“…In addition, based on the measurement principle of the eddy current sensors, the relationship among the output voltage of the eddy current sensor, tip clearance, and the blade cutting magnetic line angle was calibrated. A multisensor vibration parameter identification algorithm based on arbitrary angular distribution was introduced. …”
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2948
Numerical Investigation of Water Film Evaporation with the Countercurrent Air in the Asymmetric Heating Rectangular Channel for Passive Containment Cooling System
Published 2020-01-01“…In addition, the influences on these parameters, such as heat flux, evaporative mass flow rate, and water film thickness, are evaluated under the different tilted angles of the rectangular channel and horizontal plane, water/air inlet flow rates, water/air inlet temperatures, heating surface temperatures, and air inlet relative humidities. …”
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2949
Multiple Spacecraft Formation Flying Control around Artificial Equilibrium Point Using Propellantless Approach
Published 2022-01-01“…To properly allocate control inputs, a novel optimal allocation scheme is designed to calculate the charge product of the spacecrafts and sail attitude angles, which can make the magnitude of the acceleration required from the Coulomb propulsion system minimum and avoid formation geometry instabilities by balancing electrostatic interaction between adjacent spacecraft. …”
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2950
Prediction of Hydraulic Automatic Transmission Reliability Using Failure Data Based on Exponential Decay Oscillation Distribution Model
Published 2021-01-01“…Aiming at the problem that the traditional reliability models of mechanical products are used to predict the reliability of hydraulic automatic transmission and the expected result is relatively large, firstly, the empirical distribution model line is used to statistically analyze the failure distribution law of the hydraulic automatic transmission; then, the Fourier transform is used to perform frequency domain analysis on experience distribution; on this basis, comprehensively consider the characteristics of experience distribution and frequency domain characteristics of experience distribution, constructs the reliability model of exponential decay oscillation distribution and the corresponding reliability, failure efficiency and average life calculation model; meanwhile, studies the influence of attenuation coefficient, oscillation amplitude, oscillation angle frequency, and other parameters on the probability distribution characteristics. …”
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2951
Study on the Effect of Flocculation and Sedimentation on the Mechanical Properties of Iron Tailing Sand
Published 2022-01-01“…The direct shear test results showed that the internal friction angle of tailings sand increased by 2.18°, the cohesion increased by 5.814 kPa, and the shear resistance of flocculated settled tailings increased, which can effectively improve the safety factor of tailings sand pile sub-dam.…”
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2952
Study on Application Effect of Sand Consolidating Agent for the Slope of Highway Subgrade in Season Frozen Zone
Published 2019-01-01“…After freeze-thaw cycle tests, the cohesion, internal friction angle, and compressive strength of the solidified sand gradually decreased with increasing freeze-thaw cycles. …”
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2953
Physical Modelling of Rainfall-Induced Sandy and Clay-Like Slope Failures
Published 2023-01-01“…The model platform 2.3 m long, 1.0 m wide, and 0.5 m deep was used to build small-scale slope models with the same geometric conditions but different soil types/materials, including sand and two sand-kaolin mixtures with the same slope angle. The hydraulic response of the slope models under simulated rainfall conditions was monitored using volumetric water content, pore water pressure, and matric suction sensors installed at different depths and along different profiles. …”
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2954
The role of force and torque in friction stir welding: A detailed review
Published 2025-06-01“…Additionally, the review highlights how process parameters like tool shape, size, tilt angle, and welding speed can be optimized to enhance performance and investigates the use of force measurements for real-time weld monitoring and defect detection, contributing to the reliability of FSW in industrial applications. …”
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2955
Microstructure Evolution and Strengthening Mechanism of 2 100 MPa Grade Cold-Drawn Steel Wires for Bridge Cables
Published 2025-02-01“…The pearlite colonies turn to the drawing direction to form a fiber texture, and shear bands (S-bands) appear in cementite lamellae with a large angle to the drawing axis. The measured yield strength of steel wires conforms to the interface strengthening and dislocation strengthening models at low and medium drawing strain, with the interface strengthening and dislocation strengthening being 1 359 MPa and 569 MPa, respectively. …”
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2956
Simulation of Central Porosity and Hot Crack Formation in 14 t Flat Ingot by Mold Removal Controlled Cooling
Published 2025-02-01“…The results show that the temperature gradient of the lower part of the ingot is increased by mold removal and controlled cooling, the solidification front changes from U-shape to V-shape, the angle of solidification front is increased, the feeding channel between the riser and the solidification front is widened, and the feeding of the riser to the lower part is promoted. …”
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2957
Development of an information measuring and control system for a quadrocopter
Published 2021-12-01“…The system describes the dynamics of the quadrocopter movement and takes into account the expected smooth movement of the quadrocopter with small roll and pitch angles. A functional scheme and a mathematical model of the information-measuring and control system of the quadrocopter in the form of a block diagram are developed taking into account the influence of delays in the receipt of information from the sensors of the quadrocopter parameters. …”
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2958
Viscoelastic Fluid Factor Inversion and Application in Luojia Oilfield Based on Broadband Impedance
Published 2021-01-01“…Using the frequency-dependent viscoelastic impedance equation and Bayesian inversion framework, the objective function of frequency-dependent elastic impedance inversion can be established to realize the frequency-dependent impedance inversion at different angles. According to the elastic impedance equation of the frequency-varying viscoelastic fluid factor, the relationship between elastic impedance and the frequency-dependent viscoelastic fluid factor is established, and the prestack seismic inversion method of the frequency-dependent viscoelastic fluid factor is studied. …”
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2959
Timing of Frontal Plane Trunk Lean, Not Magnitude, Mediates Frontal Plane Knee Joint Loading in Patients with Moderate Medial Knee Osteoarthritis
Published 2018-01-01“…This was reflected by a lower rate of loading for the osteoarthritis group compared to controls (p<0.001), whereas no differences were found for peak KAM. Trunk angle, contralateral hip abductor strength, and BMI explained the rate of loading at the involved knee (p<0.001), an association not found for the contralateral knee or control knees. …”
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2960
Improving the thermal performance of PVC windows with pultruded thermoplastic reinforcement
Published 2025-01-01“…The mechanical tests results of the welded angle joint show that the window structure with composite reinforcement can be twice as strong as the steel reinforced one. …”
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