Showing 4,701 - 4,720 results of 5,544 for search '"Nonlinearity"', query time: 0.06s Refine Results
  1. 4701

    Site Specific Stem Volume Models for Pinus patula and Pinus oocarpa by Herbert Malata, Elisha S. Ngulube, Edward Missanjo

    Published 2017-01-01
    “…Various predictors including diameter at breast height (dbh) and height (ht) were run against total stem volume using a nonlinear mixed-effects modelling approach. The results indicate that the developed site specific models showed a significant association between total stem volume and the predictors (dbh and ht). …”
    Get full text
    Article
  2. 4702

    Experimental Study on Compaction Characteristics and Mechanical Behavior of Crushed Rock Masses by Xiaolou Chi, Qiang Fu, Ke Yang

    Published 2022-01-01
    “…Further, we carried out an orthogonal experiment and built a multivariate nonlinear regression model to quantitatively characterize the combined influence of these factors on the compaction characteristics of the crushed rock masses and the mechanical behavior of the consolidated bodies.…”
    Get full text
    Article
  3. 4703

    Optimization of an On-Grid Inverter for PV Applications Using Genetic Algorithms by Anis Ammous, Abdulrahman Alahdal, Kaiçar Ammous

    Published 2020-01-01
    “…A new approach to the optimal design of power inverters for on-grid photovoltaic systems that uses genetic algorithms (GA) is provided in this article. The nonlinear average model is adopted to model the conversion stage in order to accurately evaluate and quickly estimate the power losses of the power devices. …”
    Get full text
    Article
  4. 4704

    Study on the Dynamic Magnification Effect of Structure Stiffness Based on the Gust Coupling Analysis of Civil Aircraft by Yingying Liu, Kaiping Yu, Jinze Li

    Published 2025-01-01
    “…The response of flexible aircraft is nonlinearly related to frequency. It exhibits a significant increase in the inertial force and the aerodynamic force at higher frequencies, while a quasi-rigid response at very low frequencies shows the importance of sufficient analysis time. …”
    Get full text
    Article
  5. 4705

    Comparison of Three Methods for Wind Turbine Capacity Factor Estimation by Y. Ditkovich, A. Kuperman

    Published 2014-01-01
    “…The third “approximate” approach, valid in case of Rayleigh winds only, employs a nonlinear approximation of the capacity factor versus average wind speed curve, only requiring rated power and rotor diameter of the turbine. …”
    Get full text
    Article
  6. 4706

    Integrated Navigation Method of Aerospace Vehicle Based on Rank Statistics by Jun Kang, Zhi Xiong, Rong Wang, Xinrui Zhang

    Published 2023-01-01
    “…In combination with the rank filter algorithm as well as the determined weights, sampling points are calculated and nonlinearly propagated through the transition matrix to achieve an accurate estimation about the predicted values of the state quantities and measurement quantities and the covariance matrix. …”
    Get full text
    Article
  7. 4707

    FE Analysis of Dynamic Response of Aircraft Windshield against Bird Impact by Uzair Ahmed Dar, Weihong Zhang, Yingjie Xu

    Published 2013-01-01
    “…Numerical simulations were performed by developing nonlinear FE model in commercially available explicit FE solver AUTODYN. …”
    Get full text
    Article
  8. 4708

    Experimental Study on Unsteady Radon Exhalation from the Overburden Layer of the Uranium Mill Tailings Pond under Rainfall by Hong Wang, Wenhua Wang, Runcheng He, Changshou Hong, Jin Wang, Xiangyang Li, Yong Liu

    Published 2022-01-01
    “…The results show that the radon concentration in the overburden layer of UMTs increases nonlinearly; the dynamic change in moisture content of the overburden layer on the beach surface leads to the unsteady radon exhalation. …”
    Get full text
    Article
  9. 4709
  10. 4710

    Experimental Implementation of Cascaded H-Bridge Multilevel Inverter with an Improved Reliability for Solar PV Applications by C. Dhanamjayulu, T. Girijaprasanna

    Published 2023-01-01
    “…The inverter is tested with linear and nonlinear loads for robustness, and during dynamic loads, inverter is stable and well suited to grid-connected applications. …”
    Get full text
    Article
  11. 4711

    Development of a Family of Chaotic Systems with Infinite Equilibria and Its Application for Image Encryption by Xiaofeng Li, Yulong Bai, Weishuan Pan, Di Wang, Yong-Jie Ma

    Published 2022-01-01
    “…Fourth-order autonomous nonlinear differential equations can exhibit chaotic properties. …”
    Get full text
    Article
  12. 4712

    Predicting Shear Capacity of FRP-Reinforced Concrete Beams without Stirrups by Artificial Neural Networks, Gene Expression Programming, and Regression Analysis by Ghazi Bahroz Jumaa, Ali Ramadhan Yousif

    Published 2018-01-01
    “…This paper proposes three new prediction models, utilizing artificial neural networks (ANNs) and gene expression programming (GEP), as a recently developed artificial intelligent techniques, and nonlinear regression analysis (NLR) as a conventional technique. …”
    Get full text
    Article
  13. 4713

    SOR-Like New Iterative Method for Solving the Epidemic Model and the Prey and Predator Problem by Atika Radid, Karim Rhofir

    Published 2020-01-01
    “…The proposed method is not limited to these two problems but can be applicable to a wide range of systems of nonlinear functional problem. The results, for different values of ω, show that we found some known methods and our method compared to methods using the calculation of special polynomials and derivatives like the Adomian decomposition method (ADM), the calculation of the Lagrange multiplier as in the variational iterative method (VIM), or the construction of a homotopy as in the homotopy perturbation method (HPM) has several advantages, such as very effective and very simple to implement. …”
    Get full text
    Article
  14. 4714

    Enhancement and Expansion of the Neural Network-Based Compact Model Using a Binning Method by Jinyoung Choi, Hyunjoon Jeong, Sangmin Woo, Hyungmin Cho, Yohan Kim, Jeong-Taek Kong, Soyoung Kim

    Published 2024-01-01
    “…However, the ANN-based compact model using only one set of model parameters (global-ANN) requires larger model sizes to achieve wider coverage and higher accuracy in order to capture the unpredictable nonlinearities of emerging devices. This results in reduced simulation speed and a trade-off between simulation accuracy, model coverage, and simulation speed makes it difficult to utilize ANN-based compact models in a variety of ways. …”
    Get full text
    Article
  15. 4715

    Real-Time Implementation of Islanded Microgrid for Remote Areas by Monika Jain, Sushma Gupta, Deepika Masand, Gayatri Agnihotri, Shailendra Jain

    Published 2016-01-01
    “…The effectiveness of the proposed controller is analyzed through experimental results under balanced/unbalanced nonlinear loads condition.…”
    Get full text
    Article
  16. 4716

    High-Stability PGC-EKF Demodulation Algorithm Integrated with a Phase Delay Compensation Module by Hengyang Zhao, Feng Zhu, Xiaoxiao Xu, Zongling Zhao, Chuanlu Deng

    Published 2025-01-01
    “…To effectively eliminate the nonlinear distortion caused by the modulation depth (<i>C</i> value) drift and carrier phase delay (<i>θ</i>) in the phase-generated carrier (PGC) demodulation scheme, the PGC-PDC-EKF joint algorithm is presented, which combines phase delay compensation (PDC) with an extended Kalman filter (EKF). …”
    Get full text
    Article
  17. 4717

    Is the Linear Modeling Technique Good Enough for Optimal Form Design? A Comparison of Quantitative Analysis Models by Yang-Cheng Lin, Chung-Hsing Yeh, Chen-Cheng Wang, Chun-Chun Wei

    Published 2012-01-01
    “…The consumer-oriented design approach uses quantification theory type I, grey prediction (the linear modeling technique), and neural networks (the nonlinear modeling technique) to determine the optimal form combination of product design for matching a given product image. …”
    Get full text
    Article
  18. 4718

    Development and Application of Blast Casting Technique in Large-Scale Surface Mines: A Case Study of Heidaigou Surface Coal Mine in China by Li Ma, Kemin Li, Xiaohua Ding, Hongge Peng, Shuangshuang Xiao

    Published 2016-01-01
    “…The procedure of stripping and excavating was implemented separately and alternately in the two sections around the middle ramp ditch. An unconstrained-nonlinear model was deduced for optimizing the shift distance of the middle ramp. …”
    Get full text
    Article
  19. 4719

    Analytical study of steady state axisymmetric stagnation-point gold–blood Casson nanofluid through a rotating stretchable disk by Usman Ali, Hamid Khan, Waris Khan, Emad E. Mahmoud, Marouan Kouki, Jabr Aljedani, Hakim AL Garalleh

    Published 2025-01-01
    “…By using scaling variables, the complex system of partial differential equations is simplified into a set of coupled high degree nonlinear ordinary differential equations with convective boundary conditions. …”
    Get full text
    Article
  20. 4720

    Parkinson’s Disease and Home Healthcare Use and Expenditures among Elderly Medicare Beneficiaries by Sandipan Bhattacharjee, Aaron Metzger, Cindy Tworek, Wenhui Wei, Xiaoyun Pan, Usha Sambamoorthi

    Published 2015-01-01
    “…Logistic regressions and Ordinary Least Squares regressions were used to assess the association of PD with home health use and expenditures, respectively. Postregression nonlinear and linear decomposition techniques were used to understand the extent to which differences in home healthcare use and expenditures among elderly Medicare beneficiaries with and without PD can be explained by individual-level factors. …”
    Get full text
    Article