Showing 5,841 - 5,860 results of 6,894 for search '"nonlinear"', query time: 0.07s Refine Results
  1. 5841

    CALCULATION OF STATIC PARAMETERS OF SILICON DIODE CONTAINING δ-LAYER OF TRIPLE-CHARGED POINT DEFECTS IN SYMMETRIC p–n-JUNCTION by N. A. Poklonski, A. I. Kovalev, N. I. Gorbachuk, S. V. Shpakovski

    Published 2018-06-01
    “…It was assumed that the cross-section for v-band hole capture on t-defects is greater than the cross-section for c-band electron capture on t-defects.The system of stationary nonlinear differential equations, which describe in the drift-diffusion approximation a migration of electrons and holes in semiconductors, is solved numerically. …”
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  2. 5842

    An Empirical Model of the Ionospheric Sporadic E Layer Based on GNSS Radio Occultation Data by Bingkun Yu, Xianghui Xue, Christopher J. Scott, Xinan Yue, Xiankang Dou

    Published 2022-08-01
    “…In this study, we have constructed an empirical model of the Es layer using the multivariable nonlinear least‐squares‐fitting method, based on the S4max from Constellation Observing System for Meteorology, Ionosphere, and Climate satellite radio occultation measurements in the period 2006–2014. …”
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  3. 5843

    Rotor Speed Control of a Direct-Driven Permanent Magnet Synchronous Generator-Based Wind Turbine Using Phase-Lag Compensators to Optimize Wind Power Extraction by Ester Hamatwi, Innocent E. Davidson, Michael N. Gitau

    Published 2017-01-01
    “…Moreover, these controllers’ linear nature, constricted operating range, and their sensitivity to changes in machine parameters make them ineffective when applied to nonlinear and uncertain systems. On the other hand, phase-lag compensators are associated with a design procedure that is well defined from fundamental principles as opposed to the aforementioned trial-and-error design procedure. …”
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  4. 5844

    Retracted: Computer Medical Image Segmentation Based on Neural Network by Xiaopeng Wang, Lei Gu, Zhongyi Wang

    Published 2020-01-01
    “…The experimental results show that the FPGA accelerator in this article can improve unit performance by 34% compared with other existing research work. The nonlinear quantified cellular neural network proposed in this article can reduce LUT resource consumption by 74% and energy of 48.2%. …”
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  5. 5845

    Decoupled level and flow rate control of a two-tank system in beverage production: A comparative analysis of Fuzzy-PID and GA-PID for minimum time operation. by Tamiru Demelash Kassie, Mebratu Sintie Geremew, Kassahun Ashagrie Chanie

    Published 2025-01-01
    “…Due to the nonlinear characteristics of the valves and the interactions between the controlled variables, designing a control system for coupled tanks is a difficult task. …”
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  6. 5846

    A Group-Based Signal Timing Optimization Model Considering Safety for Signalized Intersections with Mixed Traffic Flows by Fen Wang, Keshuang Tang, Keping Li, Zhigang Liu, Lin Zhu

    Published 2019-01-01
    “…Then, the multiobjective optimization issue was formulated as a nonlinear program and solved by a Nondominated Sorting Genetic Algorithm. …”
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  7. 5847

    Using a Synthetic Borehole Model to Determine the Pore Aspect Ratio Dependence of Velocities from Acoustic Well-Logging Data by Xiao Feng, Tianyang Li, Bingrui Du, Wenxin Kong

    Published 2023-01-01
    “…The change of VP/VS in different pore AR is more responsive to porosity and nonlinear dependent on the pore AR. The relationship between the defined normalized VP and VS indicates the pore AR has a more significant effect on VS than VP in our model. …”
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  8. 5848

    Fuzzy Networked Control Systems Design Considering Scheduling Restrictions by H. Benítez-Pérez, A. Benítez-Pérez, J. Ortega-Arjona, O. Esquivel-Flores

    Published 2012-01-01
    “…The related control law is designed considering fuzzy logic approximation for nonlinear time delays coupling, where the main advantage is the integration of this behavior through extended state space representation keeping certain linear and bounded behavior and leading to a stable situation during events presentation by guaranteeing stability through Lyapunov.…”
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  9. 5849

    Improvements on the discretisation of boundary conditions to the momentum balance for glacial ice by Constantijn J. Berends, Roderik S. W. van de Wal, Paul A. Zegeling

    Published 2024-01-01
    “…The flow of glacial ice is typically approximated as a nonNewtonian viscous fluid, with the momentum balance described by (an approximation to) the Stokes equations, and the nonlinear rheology described by a flow law. The most commonly used rheological law for glacial ice, Glen's flow law, yields infinite viscosity in the case of zero deformation, which can be the case at the ice surface. …”
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  10. 5850

    Optimum Energy Flow Management of a Grid-Tied Photovoltaic-Wind-Battery System considering Cost, Reliability, and CO2 Emission by Meryeme Azaroual, Mohammed Ouassaid, Mohamed Maaroufi

    Published 2021-01-01
    “…Then, as the model is nonlinear, a comparison with other existing algorithms is performed to select the feasible, robust, and reliable model for the residential application. …”
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  11. 5851

    Crashworthiness Design and Multiobjective Optimization for Hexagon Honeycomb Structure with Functionally Graded Thickness by Ruixian Qin, Junxian Zhou, Bingzhi Chen

    Published 2019-01-01
    “…The validation of a numerical analysis model for a UT honeycomb under axial loading is implemented by a nonlinear finite element code LS-DYNA (V971). Furthermore, the multiobjective crashworthiness optimization of an FGT honeycomb subjected to axial quasi-static compression is conducted to maximize specific energy absorption (SEA) and minimize peak crashing force (PCF). …”
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  12. 5852

    Study on the temperature prediction model of residual coal in goaf based on ACO-KELM by ZHAI Xiaowei, WANG Chen, HAO Le, LI Xintian, HOU Qinyuan, MA Teng

    Published 2024-12-01
    “…Existing studies on the temperature prediction of residual coal in goafs have mainly focused on the relationship between temperature and gas concentration, with limited attention given to the complex nonlinear relationships between the residual coal temperature in the goaf, the distance from the working face, and the air leakage velocity. …”
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  13. 5853

    Assessment of Rainfall Frequencies from Global Precipitation Datasets by Xueyi Yin, Ziyang Zhang, Zhi Lin, Jun Yin

    Published 2025-01-01
    “…Such biases could propagate into the hydrological process and influence the calibration of the rainfall-runoff process, one of the key nonlinear relationships in land surface modeling. We, therefore, call for urgent research into this topic to avoid misunderstandings of rainfall intermittency and ensure its proper application in various fields.…”
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  14. 5854

    Reentry Trajectory Optimization for a Hypersonic Vehicle Based on an Improved Adaptive Fireworks Algorithm by Xing Wei, Lei Liu, Yongji Wang, Ye Yang

    Published 2018-01-01
    “…First, via the Chebyshev polynomial interpolation, the trajectory optimization problem with infinite dimensions is transformed to a nonlinear programming problem (NLP) with finite dimension, and the scope of angle of attack (AOA) is obtained by path constraints to reduce the difficulty of the optimization. …”
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  15. 5855

    Analysis of the Strategic Emission-Based Energy Policies of Developing and Developed Economies with Twin Prediction Model by Yulian Jiang, Wuchang Wei, Ramesh Chandra Das, Tonmoy Chatterjee

    Published 2020-01-01
    “…One is the Box–Jenkins method, where linear nature of the two variables is considered and the other is artificial neural network methods where nonlinear nature of the variables is also considered. …”
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  16. 5856

    A Prediction Method of Electromagnetic Environment Effects for UAV LiDAR Detection System by Min Huang, Dandan Liu, Liyun Ma, Jingyang Wang, Yuming Wang, Yazhou Chen

    Published 2021-01-01
    “…Traditional electromagnetic environment effect prediction methods mostly use a single model of mathematical model and machine learning, but the traditional prediction method has poor processing nonlinear ability and weak generalization ability. …”
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  17. 5857

    Physicochemical Changes of Cocoa Beans during Roasting Process by Pedro García-Alamilla, Laura Mercedes Lagunes-Gálvez, Juan Barajas-Fernández, Ricardo García-Alamilla

    Published 2017-01-01
    “…The effect of the variables was nonlinear and modeled with a second-order response polynomial. …”
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  18. 5858

    Application of EMD Technology in Leakage Acoustic Characteristic Extraction of Gas-Liquid, Two-Phase Flow Pipelines by Jian Ji, Yuxing Li, Cuiwei Liu, Dongxu Wang, Huafei Jing

    Published 2018-01-01
    “…When the liquid flow is maintained constant, the energy values of the IMF components change in a nonlinear manner when the gas flow rate increases. …”
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  19. 5859

    Typhoon Cloud System Identification and Forecasting Using the Feng-Yun 4A/Advanced Geosynchronous Radiation Imager Based on an Improved Fuzzy Clustering and Optical Flow Method by Gen Wang, Dongyong Wang, Wei Han, Jian Yin

    Published 2019-01-01
    “…We optimized the semi-Lagrangian nonlinear extrapolation of the optical flow field by introducing background field information, thus improving the forecast accuracy of the optical flow field. …”
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  20. 5860

    Study of the Windowing and Overlap-Add Operation for a Super-Gaussian Random Vibration Test by Yiming Peng, Yang Li

    Published 2021-01-01
    “…A window function is recommended for zero-memory nonlinear (ZMNL) transformation to move the positions of the high-excursion peaks of a super-Gaussian signal, providing a novel way of adjusting kurtosis when WOA method is applied. …”
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