Showing 2,641 - 2,660 results of 4,920 for search '(source OR sources) optimization methods', query time: 0.16s Refine Results
  1. 2641

    大型可展开网状天线反枕效应研究进展 by 贺乃馨, 宋燕平, 李团结, 张大羽, 黄鹏飞, 李怡晨, 曾家琛

    Published 2025-01-01
    “…It is too expensive to supplement air source and the self-curing technology is not mature, so it is difficult to achieve the effect of uniform curing in orbit and has not been applied in practice;The realization of uniform load is not ideal. …”
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  2. 2642

    Analysis of the spatiotemporal dynamics of grassland carbon sinks in Xinjiang via the improved CASA model by Xuewei Liu, Renping Zhang, Jing Guo, Haoen Xu, Yuhao Miao, Feifei Niu, Zhengjie Gao, Xiaming Yang, Fengqin Xiong, Jianli Zhang

    Published 2025-01-01
    “…The analysis revealed that (1) the R2 value of the optimal CASA model was 0.70, and the RMSE was 22.30 gC·m−2. (2) The 23-year average NEP in Xinjiang grassland was 113.00 gC·m−2·a−1, with 82.20 % carbon sink areas and 17.80 % carbon source areas. (3) NEPs of meadows, steppes, and desert grasslands in the Xinjiang region tended to increase during spring, summer, and autumn. (4) During the 23-year period, 15.77 % of the Xinjiang grassland area transitioned from carbon sources to carbon sinks. (5) Relative humidity and soil pH strongly influenced the NEP of Xinjiang grassland. …”
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  3. 2643

    Dazzle: Oversampled Image Reconstruction and Difference-imaging Photometry for the Nancy Grace Roman Space Telescope by Michael D. Albrow

    Published 2025-01-01
    “…Transient photometry is performed via PSF fitting on difference images, using Nelder–Mead optimization for subpixel accuracy. The software, Dazzle, is available as an open-source Python package built on widely used libraries, offering accessible tools for the detection and characterization of transient phenomena in crowded fields.…”
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  4. 2644
  5. 2645

    Greening concept in inventory system for deteriorating items with preservation investment and price and stock dependent demand via marine predators algorithm by Hachen Ali, Gobinda Chandra Panda, Adel Fahad Alrasheedi, Ali Akbar Shaikh, Jeonghwan Gwak

    Published 2025-08-01
    “…The robustness of the solution method is further demonstrated by comparing the MPA’s performance with other optimization techniques in terms of solution quality and computational efficiency. …”
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  6. 2646

    Noise Testing of the Conveyor Trough Sprocket and Surface Noise Reduction Performance Evaluation of the Cavity Structure in a Combine Harvester by Jianpeng Jing, Hongyan Sun, Runzhi Liang, Shuren Chen, Zhong Tang, Xiaoying He, Yuxuan Chen

    Published 2025-06-01
    “…Frequency spectrum analysis identified key noise sources and dominant frequency components. Finite element analysis (FEA) and vibration modal testing were performed to uncover critical noise-inducing factors, including chain meshing impacts and structural resonances. …”
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  7. 2647

    Evaluation Modeling of Electric Bus Interior Sound Quality Based on Two Improved XGBoost Algorithms Using GS and PSO by Enlai ZHANG, Yi CHEN, Liang SU, Ruoyu ZHONGLIAN, Xianyi CHEN, Shangfeng JIANG

    Published 2024-04-01
    “…Aiming at the practical application requirements of high-precision modeling of acoustic comfort in vehicles, this paper presented two improved extreme gradient boosting (XGBoost) algorithms based on grid search (GS) method and particle swarm optimization (PSO), respectively, with objective parameters and acoustic comfort as input and output variables, and established three regression models of standard XGBoost, GS-XGBoost, and PSO-XGBoost through data training. …”
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  8. 2648

    Hinged plakin domains provide specialized degrees of articulation in envoplakin, periplakin and desmoplakin. by Caezar Al-Jassar, Pau Bernadό, Martyn Chidgey, Michael Overduin

    Published 2013-01-01
    “…The range of mobility of the two arms about the hinge is revealed by applying the ensemble optimization method to small-angle X-ray scattering data. …”
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  9. 2649

    Resource allocation scheme in two-way multi-relay OFDM system by Xuan-wei LIANG, Qi ZHU, Guang-jun LIANG

    Published 2017-09-01
    “…A joint optimization scheme for power allocation and subcarrier pairing under high SNR in two-way multi-relay OFDM system was proposed.Unlike those schemes in which relays use subcarriers separately,all the relays were allowed to forward signal on each subcarrier pair for providing much space diversity.With the constraint of total system power,the proposed scheme firstly allocated each relay power with Cauchy inequality with the assuming that the total relay power was fixed.Then the dichotomy was used to calculate the power allocation between the source node and the relay node by maximizing the equivalent channel gain for different subcarrier pairs.Lastly,the power of different subcarrier pairs was allocated by convex programming,and the subcarriers were paired by Hungarian algorithm to obtain the maximum system capacity.There was no optimal power allocation method with low complexity because of the complexity of the power allocation algorithm in two-way multi-relay networks.This algorithm greatly reduces the complexity of power allocation and simulation results show that the proposed scheme outperforms the relay selection scheme and the relays use subcarriers separately scheme.…”
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  10. 2650

    Application, Implementation and Development of Automated Driving in Special Scenarios by Wang Qiuyue

    Published 2025-01-01
    “…Aiming at the limitation of traditional method, this paper puts forward multiple sensor fusion, dynamic obstacle avoidance algorithm optimization and multimode situation awareness integration scheme. …”
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  11. 2651

    Current status and prospects of research on the pollution and treatment technologies of per- and polyfluoroalkyl substances by Xuejiao Tang, He Yang, Xinya Li, Cuiping Wang

    Published 2025-07-01
    “…Additionally, it provides a forward-looking perspective on future research directions, compares the principles, applications, efficiency, and cost-effectiveness of different technologies, and proposes a novel evaluation framework to guide technology selection and optimization. Compared to previous studies, this article offers a more comprehensive and systematic review of PFAS treatment technologies, aiming to serve as a valuable reference for developing advanced PFAS removal methods.…”
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  12. 2652

    AMMap tool for additive manufacturing design, alloy discovery, and path planning by Alexander M Richter, Adam M Krajewski, Zhening Yang, Allison M Beese, Zi-Kui Liu

    Published 2025-01-01
    “…To define and navigate the high order chemical systems of CCMs/FGMs, the open-source tool, AMMap, has been developed utilizing open models and CALPHAD methods for thermodynamic computation. …”
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  13. 2653

    Learning dual context aware POI representations for geographic mapping by Quan Qin, Tinghua Ai, Shishuo Xu, Yan Zhang, Weiming Huang, Mingyi Du, Songnian Li

    Published 2025-08-01
    “…This study provides a new insight to mine deep information from POIs, contributing to a better understanding of urban systems. The source code is released at http://github.com/quan-qin/DCA.…”
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  14. 2654

    Measurement-Based Neural Network Technique for Modeling the Low-Frequency Electric Field Radiated Behavior of Satellite Units by Anna N. Lampou, Anargyros T. Baklezos, Konstantinos K. Spyridakis, Dimitrios A. Rigas-Papakonstantinou, Ioannis O. Vardiambasis, Christos D. Nikolopoulos

    Published 2024-12-01
    “…In this work, various ANN architectures are tested and compared in order to select the optimal <i>EDMnet</i> parameters for accurate source identification. …”
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  15. 2655

    An Explainable Fuzzy Framework for Assessing Preeclampsia Classification by Matías Salinas, Daira Velandia, Leondry Mayeta-Revilla, Ayleen Bertini, Marvin Querales, Fabian Pardo, Rodrigo Salas

    Published 2025-06-01
    “…<b>Methods:</b> The model integrates fuzzy decision trees with a genetic algorithm to identify a compact and relevant set of rules, optimized for both accuracy and interpretability. …”
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  16. 2656

    Structure and Antibiotic Resistance of the Main Causative agents of Infections Associated with the Provision of Medical care by N. M. Voropaeva, U. M. Nemchenko, E. V. Grigorova, N. L. Bel'kova, N. N. Chemezova, E. D. Savilov

    Published 2023-03-01
    “…P. aeruginosa and K. pneumoniae were identified as the main causative agents of HAI with multiple resistance to AMPs in the children's multidisciplinary hospital, the source of which was mainly the respiratory tract. …”
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  17. 2657

    3D Reconstruction With Spherical Cameras by Yan Cui, Qingling Chang, Qiang Liu, Xin Yang, Yajiang Huang, Shichao Chen, Fei Ren, Didier Stricker

    Published 2025-01-01
    “…In the camera locating part, we use a global descriptor augmentation model to build a labeled panorama dataset GDAP, in which the images are captured by our designed spherical cameras; In the depth estimation part, we propose a new network UMDE that can estimate the depth of both indoor and outdoor scenes; Finally, in the 3D surface reconstruction section, we turn the reconstruction problem to a graph optimization problem, called GraphFit, in which, we optimize the point clouds with s-t graph and smoothing method successively. …”
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  18. 2658

    Impact of glucose and propionic acid on even and odd chain fatty acid profiles of oleaginous yeasts by Veronica Bonzanini, Majid Haddad Momeni, Kim Olofsson, Lisbeth Olsson, Cecilia Geijer

    Published 2025-02-01
    “…When using the OCFAs precursor propionic acid as the sole carbon source, only eight strains exhibited growth, with tolerance to propionic acid concentrations between 5 and 29 g/L. …”
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  19. 2659
  20. 2660

    Research of edge-aligned staggered double-vane traveling-wave tube at G-band by Wenbo Wang, Cunjun Ruan, Pengpeng Wang, Yaqi Zhao, Tianyi Xu

    Published 2025-03-01
    “…Results show that under the optimization of the efficiency improving methods of the TWT, a considerable power output can be realized. …”
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