Showing 81 - 100 results of 1,441 for search '(( (source OR sources) utilization function ) OR ( sources utilization function ))*', query time: 0.10s Refine Results
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    Multi-Source Rainfall Data Assimilation based on Broad Learning System over Yunnan Province by Yuanyuan ZHOU, Xiaohui YANG, Tiangui XIAO

    Published 2025-04-01
    “…The accurate estimation of rainfall is always a topic of concern, given its pivotal role in accurately predicting rainfall-related disasters.This study proposed a multi-source rainfall assimilation technology based on a broad learning system (BLS) to improve the accuracy of rainfall estimation.Yunnan Province, located in China's low-latitude plateau, was chosen as the geographical area of interest to establish a multi-source rainfall assimilation model within this region.In particular, the model utilizes five satellite-derived rainfall datasets (3B42V7, IMERG, GSMaP, CMORPH, PERSIANN) and the latitude and longitude information as the source data, and the ground-based rainfall gauge data serves as the reference data.The time span of all the datasets is from April 2014 to December 2017.A leave-one-year-out cross-validation (LOYOCV) method was applied to verify the performance of the established assimilation model, where statistical indicators including Pearson’s correlation coefficient (CC), root-mean square error (RMSE), mean absolute error (MAE), Nash efficiency coefficient (NSE) and Kling-Gupta efficiency (KGE) were used to quantify the accuracy of assimilation rainfall at different spatiotemporal scales.Concurrently, assimilation models based on support vector machine (SVM) and deep neural network (DNN) were established to highlight the accuracy and efficiency of the BLS, respectively.Additionally, the effectiveness of the latitude and longitude information within the proposed assimilation model was examined.The results show that the daily average statistical index of assimilation rainfall based on BLS is better than that of the other five satellite-based products in LOYOCV.At the temporal scale, the proposed assimilation technique effectively reflects the temporal variations observed in gauge-recorded rainfall.Moreover, it can accurately estimate the rainfall amounts during rainstorms in Yunnan Province throughout 2017.It is worth noting that the rainfall data generated through the BLS method outperforms the CMORPH product (the most accurate one among the five satellite-derived rainfall products) in both rainy and dry seasons (May to October and November to April of next year, respectively).At the spatial scale, BLS-based rainfall results in most areas of Yunnan Province showed higher CC and NSE as well as smaller RMSE and MAE than the satellite-based products.The evaluation of the assimilation models based on BLS, SVM, and DNN highlights that the BLS exhibits superior functional mapping capabilities compared to SVM and demands fewer computational resources than DNN.It is reasonable to conclude that the multi-source rainfall assimilation approach utilizing the BLS while incorporating latitude and longitude information can enhance the precision of rainfall estimates in Yunnan Province.The proposed method presents practical significance in multi-source rainfall data assimilation.…”
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  4. 84

    Enhancing stochastic optimal power flow with modified cheetah optimizer for integrating renewable energy sources by Majid Saeidi, Taher Niknam, Mohsen Zare, Zulfiqar Ali Memon

    Published 2025-04-01
    “…Abstract In this paper, a modified cheetah optimizer (MCO) algorithm is presented, which has been designed to address the optimal power flow (OPF) problem in power grids that utilize renewable energy sources (RES). The issue of uncertainty in cost models for wind turbines (WTs) and photovoltaics (PVs), which can result in overestimation or underestimation of RES, is addressed by including the uncertain cost value in the direct cost of these renewable units to calculate their cost value accurately. …”
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  5. 85

    Radiation Mapping: A Gaussian Multi-Kernel Weighting Method for Source Investigation in Disaster Scenarios by Songbai Zhang, Qi Liu, Jie Chen, Yujin Cao, Guoqing Wang

    Published 2025-07-01
    “…Traditional radiation mapping methods often fail to accurately capture these complex variations, making the rapid and precise localization of radiation sources a significant challenge in emergency response scenarios. …”
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  6. 86

    Carbon Metabolism Characteristics of Rhizosphere Soil Microbial Communities in Different-Aged Alfalfa (<i>Medicago sativa</i> L.) and Their Covarying Soil Factors in the Semi-Arid... by Xianzhi Wang, Bingxue Zhou, Qian Yang

    Published 2025-06-01
    “…This study used Biolog EcoPlates to evaluate the carbon metabolism activity, functional diversity, and carbon-source utilization preferences of rhizosphere soil microbial communities in 5-, 7-, and 9-year-old alfalfa grasslands on the semi-arid Loess Plateau of western China. …”
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    Simulation study on the dosimetric parameters of domestically produced high-dose-rate brachytherapy 192Ir source by HAN Jinpeng, AN Xingtao, WANG Ji, YANG Zhijun, WANG Peiwei, WU Jinjie, WANG Kun

    Published 2025-02-01
    “…Furthermore, the dosimetric parameters for the radial dose function and anisotropy function obtained in this study show a high degree of consistency with corresponding data from existing literature.ConclusionsThe domestically produced 192Ir source model established using the Monte Carlo software demonstrates good consistent dosimetric parameters with the literature-reported dosimetric parameters, indicating that this model can be used for clinical practice applications of domestically produced 192Ir sources and has certain guiding significance.…”
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  11. 91

    Flow Allocation Algorithm Based on Potential Game in Multi-Source Multi-Hop Wireless Sensor Network by Wei Zhang, Linghua Zhang

    Published 2015-02-01
    “…The scheme adjusts the traffic based on the utility function to increase the number of coding opportunities. …”
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  12. 92

    Distributed Decision Making for Electromagnetic Radiation Source Localization Using Multi-Agent Deep Reinforcement Learning by Jiteng Chen, Zehui Zhang, Dan Fan, Chaoqun Hou, Yue Zhang, Teng Hou, Xiangni Zou, Jun Zhao

    Published 2025-03-01
    “…The algorithm incorporates task-specific knowledge into the reward function design to guide UAVs in exploring abnormal radiation sources. …”
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  13. 93

    Elastic Wave Phase Inversion in the Local-Scale Frequency–Wavenumber Domain with Marine Towed Simultaneous Sources by Shaobo Qu, Yong Hu, Xingguo Huang, Jingwei Fang, Zhihai Jiang

    Published 2025-05-01
    “…In our approach, we first employ a two-dimensional sliding window function to obtain local-scale seismic data. Following this, we utilize two-dimensional Fourier transforms to generate the local-scale frequency–wavenumber domain seismic data, constructing a corresponding elastic wave phase misfit. …”
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  14. 94

    Bias‐Independent True Random Number Generator Circuit using Memristor Noise Signals as Entropy Source by Jinwoo Park, Hyunjoong Kim, Hyungjin Kim

    Published 2025-06-01
    “…Herein, a bias‐independent TRNG circuit is presented, utilizing the random telegraph noise (RTN) signal of the memristor as a random entropy source. …”
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  15. 95

    A fully encapsulated piezoelectric–triboelectric hybrid nanogenerator for energy harvesting from biomechanical and environmental sources by C. Y. Chen, C. Y. Tsai, M. H. Xu, C. T. Wu, C. Y. Huang, T. H. Lee, Y. K. Fuh

    Published 2019-06-01
    “…In the construction of piezoelectric nanogenerator (PENG), an in-situ poling near-field electrospinning (NFES) was utilized to direct-write piezoelectric polymeric nano/micro fibers (NMFs) polyvinylidene fluoride (PVDF) as the functional layer of piezoelectric nanogenerators. …”
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  16. 96

    A Cost-Effective and High-Efficiency Novel 15-Level Hybrid MLI Topology for Renewable Energy Systems by Murat Karakılıç, Hasan Hataş

    Published 2025-06-01
    “…In this paper, a new hybrid model for single DC source multilevel inverters (MLIs) is proposed. The proposed switched diode (SD) and high frequency link (HFL) hybrid structure utilizes a single DC source voltage and supplies multiple DC voltages to the PUC circuit. …”
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  17. 97

    RpiBeh offers a versatile open source solution for rodent behavior tracking and closed loop interventions by Yiqi Sun, Jie Zhang, Qianyun Wang, Jianguang Ni

    Published 2025-08-01
    “…Existing commercial systems are costly and inflexible for customization, while current open-source tools are often lack of real-time functionality and suffer from steep learning curve. …”
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  18. 98

    A Two-Step Method for Impact Source Localization in Operational Water Pipelines Using Distributed Acoustic Sensing by Haonan Wei, Yi Liu, Zejia Hao

    Published 2025-08-01
    “…STEE is introduced as a stable metric to quantify signal impulsiveness and guides the selection of the relevant intrinsic mode function. The second step utilizes the Pruned Exact Linear Time (PELT) algorithm for accurate signal segmentation, followed by an unsupervised learning method combining Dynamic Time Warping (DTW) and clustering to identify the impact segment and precisely pick the arrival time based on shape similarity, overcoming the limitations of traditional pickers under conditions of complex noise. …”
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  19. 99

    Experimental Open-Source-Based Evaluation Platform for Highly Spectral-Efficient 5G With Simplified UTW-OFDM by Kazuki Takeda, Keiichi Mizutani, Hiroshi Harada

    Published 2025-01-01
    “…In this study, to tackle this issue, we propose and develop an experimental 5G full-stack evaluation platform that implements a waveform-shaping function for OFDM signals. The platform utilizes software-defined radio and open-source 5G software compliant with third-generation Partnership Project standards. …”
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  20. 100

    Multiomic Analysis Provided Insights into the Responses of Carbon Sources by Wood-Rotting Fungi <i>Daldinia carpinicola</i> by Peng Yang, Xingchi Ma, Yu Zhang, Yanan Sun, Hao Yu, Jiandong Han, Meng Ma, Luzhang Wan, Fansheng Cheng

    Published 2025-02-01
    “…Based on transcriptome and metabolomic analyses, <i>D. carpinicola</i> showed a greater ability to utilize sucrose over sawdust as a carbon source, enhancing its growth by activating glycolysis/gluconeogenesis and the citrate cycle. …”
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