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Research on Pantograph-Catenary Dynamics Characteristics in Mixed Double Pantographs Formation of Different Types
Published 2025-04-01“…Therefore, adjusting the value of c3 can effectively improve the current collection quality of pantograph and thus reduce the fluctuation amplitude of contact line uplift. When two different pantographs are in mixed operation, if the dynamic performance of the leading pantograph is better, the current collection quality of trailing pantograph will also be better; if the dynamic performance of leading pantograph is poor, the fluctuation amplitude of the average contact line uplift amount at each position behind the leading pantograph can be reduced by adjusting the value of c3, thereby optimizing dynamics performance of the trailing pantograph.…”
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2602
Wettability of the Plant Growth Regulator 28-HB on Pepper Leaves at Different Developmental Stages
Published 2025-06-01“…The surface free energy (SFE) of the leaves was calculated using the Owens-Wendt-Rabel-Kaelble (OWRK) method. Additionally, the surface tension of the 28-HB solutions containing various surfactants, as well as the contact angles on pepper leaves at different growth stages, were measured. …”
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2603
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2604
Convolutive blind source separation method based on tensor decomposition
Published 2021-08-01“…A convolutive blind source separation algorithm was proposed based on tensor decomposition framework, to address the estimation of mixed filter matrix and the permutation alignment of frequency bin simultaneously.Firstly, the tensor models at all frequency bins were constructed according to the estimated autocorrelation matrix of the observed signals.Secondly, the factor matrix corresponding to each frequency bin was calculated by tensor decomposition technique as the estimated mixed filter matrix for that bin.Finally, a global optimal permutation strategy with power ratio as the permutation alignment measure was adopted to eliminate the permutation ambiguity in all the frequency bins.Experimental results demonstrate that the proposed method achieves better separation performance than other existing algorithms when dealing with convolutive mixed speech under different simulation conditions.…”
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2605
A deep learning approach to detect diseases in pomegranate fruits via hybrid optimal attention capsule network
Published 2024-12-01“…Unfortunately, these fruits are susceptible to many different kinds of diseases caused by bacterial, viral, and fungal infections. …”
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2606
Energy Optimal Trajectory Planning for the Morphing Solar-Powered Unmanned Aerial Vehicle Based on Hierarchical Reinforcement Learning
Published 2025-07-01“…This study presents an energy-optimal trajectory planning method based on Hierarchical Reinforcement Learning for morphing solar-powered Unmanned Aerial Vehicles (UAVs), exemplified by a Λ-shaped aircraft. …”
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2607
Research on control strategies for low-pressure components in integrated thermal management systems based on optimal coefficient of performance
Published 2025-02-01“…These insights are meaningful for developing effective system control strategies to boost energy efficiency and optimize cooling capacity distribution. According to analysis above, a control strategy for fans, HVAC blowers, and pumps based on optimal COP has been proposed, which demonstrates a 5.45 %–14.69 % improvement in system COP compared to traditional pressure and temperature-based control methods.…”
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2608
Finding Optimal Spatial Window: The Influence of Size on Remote-Sensing-Based Chl-a Prediction in Small Reservoirs
Published 2024-01-01“…Results show that window sizes between 5×5 and 9×9 pixels yielded optimal Chl-a estimation accuracy. The Cmax estimator consistently outperformed other methods across different window sizes, particularly for mesotrophic and eutrophic waters. …”
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2609
Investigating the Orientation of Mehr Housing Buildings in Rasht City with the Aim of Optimal Use of Wind Direction and Solar Radiation
Published 2024-06-01“…Finally, through the calculation method of the cosine law, investigate the intensity of radiation in 24 geographical directions in different months and separately between the cold and hot periods of the year, taking into account 40% of the light reflection around the buildings. …”
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2610
Surgical Safety Checklist as an optimal organizational model in ensuring the maximum degree of preparedness for intraoperative incidents (case report)
Published 2024-01-01“…It results from attentive work with the checklist which shows a clear liability for each member of the operating team at different stages of preparation and treatment of a surgical patient.Conclusions. …”
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2611
Theoretical analysis and experimental validation of optimal vapor injection conditions for a low-pressure ratio scroll compressor
Published 2024-12-01“…The research combines experimental and simulation methods to analyze five injection ports designed at different positions. …”
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2612
The method of hail breaking on the protected areas of the Central Caucasus region
Published 2022-09-01“…The average physical eficiency of anti-hail protection was estimated at 95.7%. This method can be recommended to different countries when planning and carrying out scientific, experimental and production activities on influencing hailing.…”
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2613
Load balancing method of service cluster based on mean-variance
Published 2017-01-01“…When a large number of concurrent requests are allocated,the load scheduling mechanism is to achieve the load balancing of nodes in the network by minimizing the response time and maximizing the utilization ratio of nodes.In the load balancing algorithm based on genetic algorithm,the fitness function is designed to have an important influence on the load balancing efficiency.A service cluster load balancing method based on mean-variance was proposed to optimize the fitness function.The investment portfolio selection model mean-variance was used to minimize the response time,which was used to get the weight of each server's resource utilization,so as to obtain the optimal allocation combination.This method improves the accuracy and efficiency of the fitness function.Compared with other models in different service environment,the simulation results show that the load balancing algorithm makes the service cluster get a better balance performance in terms of node utilization and response time.…”
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2614
Formation and stability of gold nanoparticles in colloids prepared by citrate method
Published 2023-08-01“…The obtaining of Au NPs even via classical procedure of citrate method can be a challenge. In the present work we applied different experimental approaches to affect the process of Au NPs formation in the presence of sodium citrate. …”
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2615
A Hybrid Approach Integrating Decomposition Ensemble Forecasting With Optimal Combination Selection for Air Passenger Demand Forecasting
Published 2025-01-01“…Nevertheless, it remains unclear how linear combinations with different weight assessments affect the accuracy of decomposition ensemble forecasting. …”
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2616
Optimal Split Ratio in Double-Stator Permanent-Magnet Motors Considering Loss Limitations for Robot Joint Applications
Published 2025-07-01“…Additionally, an investigation into the electromagnetic characteristics of the optimized DSPM motor was conducted using the finite element method. …”
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2617
Power Enhancement under Partial Shading Condition Using a Two-Step Optimal PV Array Reconfiguration
Published 2021-01-01“…Under 8 different partial shading patterns, simulations are conducted and results confirm that the proposed method outperforms the TCT array and statically modified TCT array in terms of power and mismatch losses. …”
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2618
Optimal Fasting Insulin Cutoff Value to Predict Clinical and/or Biochemical Hyperandrogenism in Korean Women with Polycystic Ovary Syndrome
Published 2023-11-01“…To the best of our knowledge, however, few studies have determined the optimal fasting insulin cutoff value to predict HA in PCOS patients. …”
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2619
Critical Literature Review of Bone Grafts and Orthobiologics for Foot and Ankle Arthrodesis to Facilitate Optimal Clinical Decision Making
Published 2024-12-01“…The purpose of this review was to summarize the available clinical evidence surrounding the utilization and efficacy of the various materials and biological agents [autologous (autograft), allogenic bone graft (allograft), demineralized bone matrix (DBM), calcium sulfate, calcium phosphate, tricalcium phosphate/hydroxyapatite, recombinant human bone morphogenetic protein -2 (rhBMP-2) or recombinant human platelet derived growth factor-BB (rhPDGF-BB)], and preparations (platelet-rich plasma or concentrated bone marrow aspirate) to promote bone healing in hindfoot and ankle procedures, with emphasis on the quality of the existing evidence to facilitate optimal clinical decision making. Methods: A literature review was performed on MEDLINE, SCOPUS, PubMed, and Google Scholar. …”
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