Showing 5,121 - 5,140 results of 5,544 for search '"Nonlinearity"', query time: 0.07s Refine Results
  1. 5121

    ON STABILITY OF THE OIL DISPLACEMENT FRONT UNDER CONDITIONS OF THERMOGAS IMPACT ON THE OIL BEARING LAYER by K. V. Dobrego

    Published 2016-03-01
    “…Further research into methods and mechanisms of the displacement front perturbation compensation, including the front dynamics at nonlinear stage, might be conducted via detailed 2D and 3D numerical simulation of the system.…”
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  2. 5122

    A Risk Assessment Algorithm for College Student Entrepreneurship Based on Big Data Analysis by Chengjun Zhou, DuanXu Wang

    Published 2021-01-01
    “…The changes in risk assessment for college student entrepreneurship are also dynamic and nonlinear and are affected by many factors, which make the risk assessment process for college student entrepreneurship quite complicated. …”
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  3. 5123

    Closed-Form Models of Accuracy Loss due to Subsampling in SVD Collaborative Filtering by Samin Poudel, Marwan Bikdash

    Published 2023-03-01
    “…We postulate and analyze a nonlinear subsampling accuracy loss (SSAL) model based on the root mean square error (RMSE) and two SSAL models based on the mean square error (MSE), suggested by extensive preliminary simulations. …”
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  4. 5124

    Dynamical system analysis for extended f(P) gravity coupled with scalar field by Ratul Mandal, Ujjal Debnath, Anirudh Pradhan

    Published 2025-01-01
    “…After presenting the field equation for the corresponding cosmological setup, we introduce some dimensionless variables and formulate a nonlinear autonomous system. For the different interaction scenarios, we have investigated the phase space and their physical characteristics and the dynamics of the cosmological solution associated with each critical point. …”
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  5. 5125

    Power flow analysis and volt/var control strategy of the active distribution network based on data-driven method by Chen Hui, Zhu Weiping, Liu Liguo, Shi Mingming, Xie Wenqiang, Zhang Chenyu

    Published 2025-01-01
    “…Firstly, the CatBoost machine learning model for the distribution network power flow analysis is proposed, and the nonlinear mapping relationship between the distribution network state and power flow results is described from the data-driven perspective. …”
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  6. 5126

    Detection of Cracks in Rotating Shafts by Using the Combination Resonances Approach and the Approximated Entropy Algorithm by Rodrigo Nicoletti, Aldemir A. Cavalini, Valder Steffen

    Published 2018-01-01
    “…However, these techniques fail for the cases in which incipient cracks are concerned. Recently, a nonlinear approach to detect cracks in rotating shafts was presented. …”
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  7. 5127

    Association between cardiometabolic index and hypertension among US adults from NHANES 1999–2020 by Tuo Guo, Yang Zhou, Guifang Yang, Lijuan Sheng, Xiangping Chai

    Published 2025-02-01
    “…Findings confirmed that hypertensive participants exhibited significantly higher CMI levels (median 0.46 vs. 0.73), with adjusted logistic regression showing a notable association between increased CMI and hypertension prevalence (OR 1.30, 95% CI 1.25–1.35, P < 0.01), characterized by a nonlinear L-shaped curve with a critical threshold identified at a CMI value of 1.37. …”
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  8. 5128

    Multiplayer games and HIV transmission via casual encounters by Stephen Tully, Monica-Gabriela Cojocaru, Chris T. Bauch

    Published 2017-03-01
    “…They assess changes made at the population level for different intervention strategies.To further understand how individual changes affect the population as a whole, game-theoretical models are used to quantify the decision-making process.Investigating multiplayer nonlinear games that model HIV transmission represents a unique approach in epidemiological research. …”
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  9. 5129

    Mudharabah, musyarakah, financing risk, and performance of Islamic banks: Empirical evidence from Indonesia by Radhita Asfarina Annizar, Eddy Junarsin

    Published 2025-01-01
    “…Methodology – Using panel data and quadratic regression analysis, we explore the nonlinear relationships among mudharabah, musyarakah, financing risk, and performance of Islamic banks in Indonesia using a sample of 14 Indonesian Islamic banks during the period to 2008-2020. …”
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  10. 5130

    Analysis of Internet Financial Risk Control Model Based on Machine Learning Algorithms by Mingjin Liu, Ruijie Gao, Wei Fu

    Published 2021-01-01
    “…The research results show that the prediction effect of the classification model based on traditional linear regression is generally lower than that of the model based on the classification algorithm based on machine learning, and there is a complex nonlinear relationship between platform default and its related influencing factors. …”
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  11. 5131

    Multiscale Investigations of Overtopping Erosion in Reinforced Tailings Dam Induced by Mud-Water Mixture Overflow by Meibao Chen, Xiaofei Jing, Xiaohua Liu, Xuewei Huang, Wen Nie

    Published 2022-01-01
    “…This investigation conclusively showed that the red mud concentration for flooding over the dam slope had a nonlinear trend of first becoming larger, subsequently decreasing with the time going on in the process of tailing dam overtopping; the maximum red mud concentration achieved 19.0%. …”
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  12. 5132

    Leveraging Quantum LSTM for High-Accuracy Prediction of Viral Mutations by Prashanth Choppara, Bommareddy Lokesh

    Published 2025-01-01
    “…The QLSTM model leverages quantum computing techniques, including superposition and entanglement, to improve the model&#x2019;s ability to handle the high-dimensional, nonlinear structure inherent in viral genomic datasets. …”
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  13. 5133

    Social risks of e-learning in a digital society by E. V. Chmykhova

    Published 2020-05-01
    “…Kravchenko’s “humanistic theory of a complex society”, which has a nonlinear dynamics of development, – has been proposed. …”
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  14. 5134

    Integration of predictive and computational intelligent techniques: A hybrid optimization mechanism for PMSM dynamics reinforcement by Shaswat Chirantan, Bibhuti Bhusan Pati

    Published 2024-05-01
    “…We address the challenges of traditional control methods that struggle with the dynamics and nonlinear nature of PMSMs, offering a solution that leverages the predictive capabilities of MPC and the adaptive learning potential of neural networks. …”
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  15. 5135

    Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without Retrofitting by Fauzan, Zev Al Jauhari, Geby Aryo Agista, Atsushi Yokota, Masharya Eko Putra

    Published 2025-01-01
    “…The seismic fragility curve was determined from the maximum displacement of the building for varied earthquake acceleration, using nonlinear time history dynamic response analysis scaled using the incremental dynamic analysis method and damage limits defined by ATC-40, characterized by Hazus. …”
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  16. 5136

    Three-dimensional discrete element analysis of the excavation face stability of deep-buried shield tunnels by Xin Huang, Zihao Zhang, Guangyi Yan, Jiaqi Guo, Chong Xu, Qi Liang

    Published 2025-02-01
    “…Research results showed that (1) The horizontal displacement of tunnel excavation face and the critical chamber earth pressure ratio increase nonlinearly with the increase of tunnel burial depth; (2) The horizontal displacement of the excavation face, geological settlement, and critical chamber earth pressure ratio all increase with the increase of the cutterhead opening rate; (3) The horizontal displacement of the excavation face and the settlement of the strata increase with the increase of excavation speed and cutterhead rotation rate. …”
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  17. 5137

    Interpretable DWT-1DCNN-LSTM Network for Power Quality Disturbance Classification by Shuangquan Yang, Tao Shan, Xiaomei Yang

    Published 2025-01-01
    “…In addition, a large number of nonlinear loads are connected to the grid, resulting in frequent power quality disturbances (PQDs), which pose challenges to the stability and reliability of the power system. …”
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  18. 5138

    Effect of Admission Serum Calcium Levels and Length of Stay in Patients with Acute Pancreatitis: Data from the MIMIC-III Database by Dongyan Wang, Xiaoyan Guo, Wenwen Xia, Zhijuan Ru, Yihai Shi, Zhengyu Hu

    Published 2022-01-01
    “…RCS showed a significant nonlinear negative correlation between blood calcium levels and the LOS (p<0.001). …”
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  19. 5139

    Rainfall warning Based on indexs teleconnection, Synoptic Patterns of Atmospheric Upper Levels and Climatic elements a case study of Karoun basin by iran salehvand, amir gandomkar, ebrahim fatahi

    Published 2020-12-01
    “…For precipitation modeling, the monthly rainfall data of the Hamadid and Baranzadeh station in the statistical period (1984-2014) for 30 years as a dependent variable and climatic indexes, large-scale climatic signals including sea surface temperatures and 1000 millimeter temperatures Altitude of 500 milligrams, 200 milligrams of omega and climatic elements have been used as independent variables. Due to the nonlinear behavior of rainfall, artificial neural networks were used for modeling. …”
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  20. 5140

    A Reliable Approach for Solving Transmission Network Expansion Planning with Objective of Planning Cost Reduction by Yongqiu Liu

    Published 2022-04-01
    “…The optimization problem represented in this paper is a large-scale non-convex mixed integer nonlinear programming problem with multiple local minima. …”
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