Showing 4,141 - 4,160 results of 5,544 for search '"Nonlinearity"', query time: 0.05s Refine Results
  1. 4141

    Computer Simulation Tests of Feedback Error Learning Controller with IDM and ISM for Functional Electrical Stimulation in Wrist Joint Control by Takashi Watanabe, Yoshihiro Sugi

    Published 2010-01-01
    “…The simple ISM learning method and the FEL-FES controller using the ISM would be useful in controlling the musculoskeletal system that has nonlinear characteristics to electrical stimulation and therefore is expected to be useful in applying to hybrid FES system using powered orthotic device.…”
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  2. 4142

    Assessment of Design and Retrofitting Solutions on the Progressive Collapse of Hongqi Bridge by Amir Seyed Khoei, Reza Akbari, Shahrokh Maalek, Alireza Gharighoran

    Published 2020-01-01
    “…In this study, progressive collapse of Hongqi Bridge was investigated using nonlinear dynamic analysis in the Applied Element Method, which has been proven as one of the best methods that can follow the collapse behavior of structures. …”
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  3. 4143

    Quantitative functional calculus in Sobolev spaces by Carlo Morosi, Livio Pizzocchero

    Published 2004-01-01
    “…In the frame work of Sobolev (Bessel potential) spaces Hn(Rd,R or C), we consider the nonlinear Nemytskij operator sending a function x∈Rd↦f(x) into a composite function x∈Rd↦G(f(x),x). …”
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  4. 4144

    Statistical Analysis of the Tensile Strength of Coal Fly Ash Concrete with Fibers Using Central Composite Design by Marinela Barbuta, Emanuela Marin, Sorin Mihai Cimpeanu, Gigel Paraschiv, Daniel Lepadatu, Roxana Dana Bucur

    Published 2015-01-01
    “…Using analysis of variance, the order of importance of the variables was established for each property (flexural strength and split tensile strength). From the nonlinear response surfaces, it was found that higher values of flexural strength were obtained for fibers longer than 12 mm and at a dosage of 1-2%. …”
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  5. 4145

    Logarithmic sensitivity ratio elucidates thermal transport physics in multivariate thermoreflectance experiments by Jing Tu, Md Azimul Haque, Derya Baran, Wee-Liat Ong

    Published 2025-01-01
    “…We mathematically derived a sensitivity-based method that identifies the thermal transport physics and parameters suitable for multivariate nonlinear fits in a frequency-domain thermoreflectance (FDTR) experiment. …”
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  6. 4146

    The Adjustment of Covariates in Cox’s Model under Case-Cohort Design by Guocai Rong, Luwei Tang, Wenting Luo, Qing Li, Lifeng Deng

    Published 2020-01-01
    “…According to the existing adjustable methods of distorted covariates for linear and nonlinear models, we propose estimating the distorting functions by nonparametrically regressing the distorted covariates on the distorting factors; then, the estimators for the parameters are obtained using the estimated covariates. …”
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  7. 4147

    Robustness Analysis of Control Laws in Complex Dynamical Networks Evoked by Deviating Argument by Biwen Lia, Jingjing Huang, Donglun Wang

    Published 2022-01-01
    “…We design two categories of control laws (linear control law and nonlinear control law) for the undisturbed CDNs to achieve exponential synchronization. …”
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  8. 4148

    Serotonergic Dysfunction in Parkinson's Disease and Its Relevance to Disability by Marios Politis, Clare Loane

    Published 2011-01-01
    “…With the use of in vivo positron emission tomography functional imaging, it has been shown that serotonergic terminals are affected at a varying, nonlinear degree starting early in the clinical course of Parkinson's disease. …”
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  9. 4149

    Design of Robust Adaptive Observer against Measurement Noise for Sensorless Vector Control of Induction Motor Drives by Asma Boulmane, Youssef Zidani, Mohammed Chennani, Driss Belkhayat

    Published 2020-01-01
    “…This technique ensures the stability of the induction motor considered as nonlinear dynamic system. Since the Luenberger observer works on deterministic environment, and it is most effective when sensor noise is limited, the present study aims to design a robust observer insensitive to measurement noise and parametric variation integrated in a cascade structure. …”
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  10. 4150

    Lamb Waves in a Functionally Graded Composite Plate with Nonintegral Power Function Volume Fractions by Xiaoshan Cao, Zhen Qu, Junping Shi, Yan Ru

    Published 2015-01-01
    “…The numerical results reveal that the dispersion properties in some regions are changed by the graded property, the phase velocity varies in a nonlinear manner with the gradient coefficient, nondispersion frequency exists in the first mode, and the set of cutoff frequencies is a union of two series of approximate arithmetic progressions. …”
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  11. 4151

    A 0.69-mW Subsampling NB-IoT Receiver Employing a Linearized <italic>Q</italic>-Boosted LNA by Hongyu Lu, Ahmed Gharib Gadelkarim, Jiannan Huang, Patrick P. Mercier

    Published 2024-01-01
    “…A direct-coupling derivative superposition technique where low-<inline-formula> <tex-math notation="LaTeX">$V_{t}$ </tex-math></inline-formula> and thick-gate transistors with opposite nonlinear characteristics are combined to improve the measured IIP3 by 7 dB to &#x2212;18 dBm with little NF overhead. …”
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  12. 4152

    Energy-Efficient Train Operation Using Nature-Inspired Algorithms by Kemal Keskin, Abdurrahman Karamancioglu

    Published 2017-01-01
    “…The optimization process results in switching points that initiate cruising and coasting phases of the driving. Due to nonlinear optimization formulation of the problem, nature-inspired evolutionary search methods, Genetic Simulated Annealing, Firefly, and Big Bang-Big Crunch algorithms were employed in this study. …”
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  13. 4153

    A Mathematical Algorithm of Locomotive Source Localization Based on Hyperbolic Technique by Homayun Kabir, Jeevan Kanesan, Ahmed Wasif Reza, Harikrishnan Ramiah

    Published 2015-10-01
    “…However, estimating the location of an emitter based on hyperbolic measurements is a highly nonlinear problem with inconsistent data, which are created due to the measurement noise, the deviation between assumption model and actual field of the velocity, and so forth. …”
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  14. 4154

    The Shock Characteristics of Tilted Support Spring Packaging System with Critical Components by An-Jun Chen

    Published 2014-01-01
    “…The nonlinear dynamical equations of tilted support spring packaging system with critical components were obtained under the action of half-sine pulse. …”
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  15. 4155

    Analysis and Prediction of Body Test Results Based on Improved Backpropagation Neural Network Algorithm by Zhanju Ma, Yao Wang

    Published 2022-01-01
    “…Based on BP neural network, an algorithm for predicting students’ endurance performance is proposed, which is applied to the sunshine long-distance intelligent sports testing system at Hangzhou Dianzi University. The nonlinear relationship between students’ performance in sunshine running and endurance performance is determined, and students’ performance in sunshine running is used to predict their endurance performance the following year. …”
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  16. 4156

    Hydraulic Simulation of Leakage in Post-Earthquake Water Supply Pipeline Network and Its Algorithm Improvement by Tianyang Yu

    Published 2022-01-01
    “…The linear search and backtracking algorithm was used to control the iterative step size of the nonlinear equations of the pipe network nodes, which ensures the global convergence of the low-pressure hydraulic analysis of the pipe network.…”
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  17. 4157

    Relationship between Urban Innovation Capability and Energy Utilization Efficiency: An Empirical Study of 281 Prefecture-Level Cities in China by Wanshu Wu, Kai Zhao

    Published 2022-01-01
    “…Following a dynamic nonlinear perspective, this study explores the relationship between urban innovation capability and energy utilization efficiency by employing the Panel Vector Autoregression (PVAR) and Dynamic Panel Threshold Regression (DPTR) methods. …”
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  18. 4158
  19. 4159

    Fixed-Time Trajectory Tracking Control of Autonomous Surface Vehicle with Model Uncertainties and Disturbances by Jiawen Cui, Haibin Sun

    Published 2020-01-01
    “…By combining the FTDO and ISMC techniques, a new control scheme (FTDO-ISMC) is developed, which can achieve both disturbance compensation and chattering-free condition. (3) Aiming at reconstructing the unknown nonlinear dynamics and external disturbances, a fixed-time unknown observer (FTUO) is proposed, thus providing the FTUO-ISMC scheme that finally achieves trajectory tracking of ASVs with unknown parameters. …”
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  20. 4160