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14481
Influence of Friction Forces and Gravity on the Quality of Movement in the MWR Rehabilitation Supporting Device
Published 2025-05-01“…To address these issues, friction and gravity compensation functions were derived empirically and integrated into the control system’s algorithm. Implementing these compensation functions resulted in a substantial improvement in movement quality, as demonstrated by a reduction of over 50% in the integral of the absolute position error. …”
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14482
APPLICATION OF IMPROVED GWO-SVM IN WIND TURBINE GEARBOX FAULT DIAGNOSIS
Published 2021-01-01“…The improved gray wolf algorithm is used to optimize the support vector machine to diagnose the gearbox fault feature set after dimensionality reduction. …”
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14483
Research on optimization of C4 repair operation of Harmony electric locomotive based on preventive maintenance.
Published 2025-01-01“…The results of the study showed that the preventive maintenance approach resulted in a 51.04% reduction in total cost and a 7.89% increase in availability over the same operating cycle compared to the traditional fixed repair schedule maintenance program. …”
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14484
Design and experiment of a multimodal aerial aquatic vehicle with morphing wing and tilting rotors
Published 2025-02-01“…The attitude control and a control allocation algorithm were established for locomotion control. …”
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14485
A new method for reducing 5G overlapping coverage of urban grid roads
Published 2024-01-01“…The 5G network for urban grid road scenes has entered a new stage of refined operation and maintenance.The main contradiction has also shifted from insufficient coverage to severe overlapping coverage of some road sections.5G overlapping coverage will have a significant impact on users’ basic services such as internet access and voice.The optimization of traditional road overlapping coverage has many problems, such as inconsistent standards, recurring problems, and low work efficiency.The concept of overlapping coverage contribution was proposed, and an algorithm for root cause analysis of overlapping coverage was designed based on expert experience.An IT platform for optimizing overlapping coverage problems was also developed.The practice has proven that this method can effectively reduce the 5G overlapping coverage rate of urban grid roads, help enterprises save network optimization costs, and truly achieve the goal of cost reduction and efficiency increase.…”
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14486
RESEARCH ON ACOUSTIC RADIATION CHARACTRRISTICS OF PERIODIC PERFORATED DAMPING SANDWICH PLATE
Published 2015-01-01“…Base on the principle of damping reduction vibration and reference the periodic boundary conditions,through the acoustic bridge vibration energy transfer, this paper established a double-layer plate with the opening damping model;Considering the frequency-dependent properties of viscoelastic,through the finite element and boundary element numerical algorithm of calculating the radiation sound power,analyzes the periodic perforated damped sandwich plate structure acoustic radiation characteristics. …”
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14487
Mutation analysis of annual sediment discharge at Wu Long station in Wu Jiang River Basin from 1960 to 2016.
Published 2019-01-01“…The mutation of average annual sediment discharge in Wu Jiang River Basin is caused by both climate change and human activity. Sediment reduction effect of the hydraulic engineerings built since 1990s climate is main and direct, and the climate change have secondary effect on sediment discharge change.…”
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14488
Fault Diagnosis of Gearbox based on Multi-fractal and PSO-SVM
Published 2015-01-01“…Aiming at the non-stationary and nonlinear of gearbox vibration signals,a fault diagnosis method based on the multi-fractal and particle swarm optimization support vector machine(PSO-SVM)is put forward.Firstly,the fractal filter with short-time fractal dimension as fuzzy control parameters is used to filtering noise reduction the gearbox vibration signals with bigger background noises.Secondly,the multi-fractal spectrum algorithm is applied to analyze the signal after filtering,the results show that the characteristic parameters:Δa(q)、f(a(q))maxand box dimensions Dbcan give a good presentation for gearbox working condition.Finally,the particle swarm optimization(PSO)is applied to optimize the parameters of support vector machine(SVM).Taking the multi-fractal characteristic vectors as input parameters of PSO-SVM and SVM to recognize the fault types of the gearbox.The results show that SVM based on particle swarm optimization can improve the classification accuracy.Meanwhile,the validity of gearbox fault diagnosis based on muti-fractal and PSO-SVM is proved.…”
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14489
A Coordinated Allocation Method for Right-Turn Strategy at Signalized Intersections with Optimal Pedestrian and Vehicle Delays
Published 2023-01-01“…With strict enforcement of pedestrian right of way at all intersections, the inappropriate right-turn resource allocation from a spatial and temporal perspective will lead to a reduction in the operational efficiency of the intersection. …”
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14490
立磨减速机弧齿锥齿轮副动态疲劳性能研究
Published 2014-01-01“…The 3Dcontact finite element model of the input spiral bevel gear pair of vertical mill reducer is built,the flexible-body dynamics simulation analysis of bevel gear pair is carried out by using the LS-DYNA software,and the transient contact force is obtained,the fatigue life of the bevel gear pair is performed by using maximum main stress algorithm in FE-SAFE based on fatigue load spectrum,the S-N curve of the bevel gear pair and stress results of the bevel gear pair under static load.Then,the influence of stress concentration,loads and residual stress on fatigue life of bevel gear pair are studied based on the results above.The results indicate that the life decreases of bevel gear pair with the increase of stress concentration and loads,the fatigue life shows sensitization to loads,the residual tensile stress leads to a reduction of bevel gear pair fatigue life,however,the residual press stress leads to a increase of bevel gear pair fatigue life.…”
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14491
The Combination of Spectrum Subtraction and Cross-power Spectrum Phase Method for Time Delay Estimation
Published 2020-07-01“…Finally, the joint simulation results of the whole algorithm show that the combination of spectrum subtraction and crosspower spectrum phase method can effectively sharpen the peak value of cross-correlation function and improve the accuracy of time delay estimation in the low SNR environment. …”
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14492
In Silico Analysis of Coding/Noncoding SNPs of Human RETN Gene and Characterization of Their Impact on Resistin Stability and Structure
Published 2019-01-01“…Stability analysis predicted 9 nsSNPs (I32S, C51Y, G58E, G58R, C78S, G79C, W98C, C103G, and C104Y) which can decrease protein stability with at least three out of the four algorithms used in this study. …”
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14493
Three stages of laboratory stewardship in improving appropriate Clostridioides difficile testing in a community-based setting
Published 2025-01-01“…The EMR hard stop resulted in a (28%) reduction in the CDI testing rate (adjusted incidence rate ratio ((aIRR): 0.72; 95% confidence interval [CI], 0.53 to 0.96)) and ID review resulted in a (42%) reduction in the CDI testing rate (aIRR: 0.58; 95% CI, 0.42–0.79). …”
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14494
Modelling flame-to-fuel heat transfer by deep learning and fire images
Published 2024-12-01“…Results show that the proposed AI algorithm trained by flame images can predict both the convective and radiative heat flux distributions on the condensed fuel surface with a relative error below 20%, based on the input of real-time flame morphology that can be captured by a larger grid size. …”
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14495
Clinical decision support system based on artificial intelligence for adjusting insulin pump parameters in children with type 1 diabetes mellitus
Published 2024-07-01“…We constructed recurrent neural network (RNN) to predict glucose concentration for 30-120 minutes, an algorithm for optimizing IP settings using prediction results. …”
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14496
A study on rolling bearing fault diagnosis using RIME-VMD
Published 2025-02-01“…Abstract To address the challenges of feature extraction in Variational Mode Decomposition (VMD) for rolling bearing fault diagnosis, this paper proposes a feature extraction method optimized by the RIME algorithm, called RIME-VMD. First, under various rolling bearing fault conditions, the RIME algorithm is employed to determine the optimal combination of decomposition components and penalty factors in VMD. …”
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14497
Design of smart agriculture based on big data and Internet of things
Published 2020-05-01“…The crop growth curve is simulated and compared with improved K-means algorithm and the original k-means algorithm in the experimental analysis. …”
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14498
Evaluating the Effect of Thermal Treatment on Phenolic Compounds in Functional Flours Using Vis–NIR–SWIR Spectroscopy: A Machine Learning Approach
Published 2025-07-01“…Models trained on the 1000–2500 nm and 1400–2500 nm ranges showed minor reductions in accuracy, suggesting that classification is not solely driven by visible characteristics. …”
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14499
Defect Detection and 3D Reconstruction of Complex Urban Underground Pipeline Scenes for Sewer Robots
Published 2024-11-01“…Comprehensive comparisons and analyses are conducted with 12 mainstream detection algorithms to validate the superiority of the proposed model. …”
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14500
The Specific Features of the Pathogenesis and Correction of Critical Conditions in Obstetric Care
Published 2012-08-01“…The findings are suggestive of significant impairments in central hemodynamics (CHD) in the severe forms of gestosis, which are caused by reductions in cardiac index and circulating blood volume, the basis for these is hypovolemia. …”
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