Showing 6,221 - 6,240 results of 6,894 for search '"Nonlinearity"', query time: 0.06s Refine Results
  1. 6221

    Experimental Investigation on Strength and Deformation Characteristics of Red Sandstone at Strain Rates of 10−2∼55 s−1 by Jie Shi, Zongmu Luo, Huachao Liu, Dan Wang, Haipeng Shen, Zeng Li

    Published 2020-01-01
    “…It is indicated that the dynamic compressive strength of sandstone in the range of intermediate strain rate increases approximately linearly with the strain rate under the quasi-static loading condition, while increasing nonlinearly under the dynamic loading condition. The deformation and fracture process of sandstone still consists of pore compaction stage, elastic deformation stage, instable microcrack propagation stage, and brittle fracture stage. …”
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  2. 6222

    Ultra‐short‐term versus short‐term measures of heart rate variability in specialist police units: A pilot reliability study by Colin D. Tomes, Elisa F. D. Canetti, Ben Schram, Robin Orr

    Published 2025-01-01
    “…However, this study confirms the robust quality of nonlinear HRV analysis, as the SD1 value demonstrated the highest ICC reported here (0.902). …”
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  3. 6223

    2D MoS2-based reconfigurable analog hardware by Xinyu Huang, Lei Tong, Langlang Xu, Wenhao Shi, Zhuiri Peng, Zheng Li, Xiangxiang Yu, Wei Li, Yilun Wang, Xinliang Zhang, Xuan Gong, Jianbin Xu, Xiaoming Qiu, Hongyang Wen, Jing Wang, Xuebin Hu, Caihua Xiong, Yu Ye, Xiangshui Miao, Lei Ye

    Published 2025-01-01
    “…The inner-states and inter-connections of all modules co-encode versatile functions such as analog-to-digital/digital-to-analog conversion, and linear/nonlinear computations including integration, vector-matrix multiplication, convolution, to name a few. …”
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  4. 6224

    Effects of Paper-Mill Sludge as a Mulch versus Topsoil Incorporation on Potassium Uptake and the Grain Yield of Rain-Fed Wheat in a High Specific Surface Loess Soil with Illite Dom... by S. Amini, S. A. R. Movahedi Naeini, K. Mashayekhi

    Published 2012-01-01
    “…A very high Gapon selectivity coefficient (KG) for K exchange against Ca + Mg (16.58 (L/mole)0.5) produced a nonlinear normalized exchange isotherm in favor of potassium with these soils containing high illite. …”
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    Article
  5. 6225

    Study on Dynamic Characteristics of Deep Siltstone under High Static Stress and Frequent Dynamic Disturbance by Lu-ping Cheng, Chun Wang, Li-zhong Tang, Cheng Wang, Zhu-qiang Xiong, Shi-ming Wei, Yuan Chen, Tao Liu, Yong-heng Wei

    Published 2019-01-01
    “…The results show that the dynamic stress-strain curves of siltstone before the peak stress present two characteristics of linear and nonlinear variation and different degrees of resilience after the peak stress under high static stress and frequent dynamic disturbance. …”
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  6. 6226

    Model for Developing a Health-Related Quality of Life Questionnaire for Chronic Obstructive Pulmonary Disease by Nikolić Emilija, Nikolić Aleksandar, Stević Ruža, Brandmajer Tijana, Mićanović Veselin, Mašnić Jelena

    Published 2018-01-01
    “…Cronbach’s α coefficient of correlation, standard deviation, and multifactorial nonlinear regression analysis were used to verify the internal validity of the MQ and to develop the mathematical model. …”
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    Article
  7. 6227

    Unlocking biological complexity: the role of machine learning in integrative multi-omics by Ravindra Kumar, Rajrani Ruhel, Andre J. van Wijnen

    Published 2024-11-01
    “…Machine learning and ensemble methods allow researchers to model nonlinear relationships and manage high-dimensional data, improving the precision of predictions. …”
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    Article
  8. 6228

    Optimization of Solar Hybrid Power Generation Using Conductance-Fuzzy Dual-Mode Control Method by S. Ramesh, J. Seetha, G. Ramkumar, Satyajeet Sahoo, T. M. Amirthalakshmi, A. Ranjith, Asiful H. Seikh, Sohail M. A. Khan Mohammed, Ram Subbiah

    Published 2022-01-01
    “…This study’s approach incorporates a decentralized power generation system with a HESS while increasing electrical output in phases utilizing a dynamic reactive power compensation scheme and a conductance-fuzzy dual-mode control strategy. Due to a nonlinear behavior of photovoltaic (PV) devices’ power output, maximum power point tracking (MPPT) methods must be used to create the greatest power. …”
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  9. 6229

    Independent Modal Variable Structure Fuzzy Active Vibration Control of Cylindrical Thin Shells Laminated with Photostrictive Actuators by R.B. He, S.J. Zheng, H.T. Wang

    Published 2013-01-01
    “…Moreover, considering the time-variant and nonlinear dynamic characteristics of photostrictive actuator, variable structure self-adjusting parameter fuzzy active controller is explored to overcome disadvantages of conventional control schemes, in which off-line fuzzy control table is adopted. …”
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  10. 6230

    Machine learning-enhanced high-resolution exposure assessment of ultrafine particles by Yudie Jianyao, Hongyong Yuan, Guofeng Su, Jing Wang, Wenguo Weng, Xiaole Zhang

    Published 2025-01-01
    “…Approximately 20% (1.7 million) of the Swiss population experiences high UFP exposure exceeding an annual mean of 104 particles‧cm−3, with a national average of (9.3 ± 4.7)×103 particles‧cm−3, ranging from (5.5 ± 2.3)×103 (rural) to (1.4 ± 0.5)×104 particles‧cm−3 (urban). A nonlinear relationship is identified between the WHO-recommended 1-hour and 24-hour exposure reference levels, suggesting their non-interchangeability. …”
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  11. 6231

    Geological characteristics of coal mines in the Zagros Basin of Iran: Unveiling rock mechanical properties and time-dependent behavior by Alireza Khoshmagham, Navid Hosseini Alaee, Reza Shirinabadi, Amir Hossein Bangian Tabrizi, Mehran Gholinejad, Pooria Kianoush

    Published 2025-03-01
    “…The study reveals that the rock mass displays significant nonlinear behavior, with changes in rock mechanical properties over time. …”
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  12. 6232

    Multi-objective planning and sustainability assessment for integrated energy systems combining ORC and multi-energy storage: 4E (economic, environmental, exergy and emergy) analysi... by Juntao Han, Kai Han, Yongzhen Wang, Yibo Han, Zhaonian Ye, Jiayu Lin

    Published 2025-01-01
    “…Firstly, the mixed-integer nonlinear optimization models for three scenarios of gas turbine (GT) without ORC, GT with ORC (GT-ORC) and solid oxide fuel cell (SOFC) with ORC (SOFC-ORC) are established, and the Pareto curve is obtained by using the augmented ε constraint. …”
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  13. 6233

    Numerical Validation of Long-Term Behaviour of Reinforced Recycled Aggregate Concrete Beam by Abdulmajed Dalia Alaa Aldeen, Daud Sultan Ahmed, Alrshoudi Fahed

    Published 2024-12-01
    “…The study employs a sophisticated nonlinear finite element analysis using Diana FEA software to construct three distinct models based on widely adopted design codes, i.e., Eurocode 2 EN 1992-1-1, fib Model Code (2010), and ACI 209R-92. …”
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  14. 6234

    Machine learning-driven analysis of heat transfer in chemically reactive fluid flow considering Soret-Dufour effects by Shazia Habib, Saleem Nasir, Zeeshan Khan, Abdallah S. Berrouk, Waseem, Saeed Islam

    Published 2025-01-01
    “…By transforming the governing system of nonlinear partial differential equations into ordinary differential equations via similarity transformation, the methodology attains computational efficiency and solution precision. …”
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  15. 6235

    L-shaped association between ankle-brachial index and coronary heart disease in Chinese adults with hypertension by Wei Zhou, Yumeng Shi, Chao Yu, Tao Wang, Lingjuan Zhu, Huihui Bao, Xiaoshu Cheng

    Published 2025-02-01
    “…Conclusions In Chinese adults with hypertension, ABI exhibits a nonlinear, L-shaped association with CHD, with the inflection point at 1.07.…”
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  16. 6236

    Nondestructive Discrimination of Lead (Pb) in Preserved Eggs (Pidan) by Near-Infrared Spectroscopy and Chemometrics by Lu Xu, Si-Min Yan, Chen-Bo Cai, Xiao-Ping Yu

    Published 2014-01-01
    “…Linear partial least squares discriminant analysis (PLSDA) and nonlinear least squares support vector machine (LS-SVM) were used to classify samples based on NIR spectra. …”
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  17. 6237

    Optimizing photovoltaic power plant forecasting with dynamic neural network structure refinement by Dácil Díaz-Bello, Carlos Vargas-Salgado, Manuel Alcazar-Ortega, David Alfonso-Solar

    Published 2025-01-01
    “…Evaluation was performed on twelve representative days using annual, monthly, and seasonal data, and a comparison was made with multiple linear regression and nonlinear autoregressive neural network models, demonstrating the approach’s effectiveness. …”
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    Article
  18. 6238

    Simulation of the Vibration Characteristics for Agricultural Wheeled Tractor with Implement and Front Axle Hydropneumatic Suspension by Enlai Zheng, Song Cui, Yuanzhao Yang, Jinlin Xue, Yue Zhu, Xiangze Lin

    Published 2019-01-01
    “…The dynamic model is significant for the analysis of the vibrational characteristics of the wheeled tractor system with implement and front axle hydropneumatic suspension. In this work, the nonlinear stiffness and damping equations are derived first. …”
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    Article
  19. 6239

    Mask-Pix2Pix Network for Overexposure Region Recovery of Solar Image by Dong Zhao, Long Xu, Linjie Chen, Yihua Yan, Ling-Yu Duan

    Published 2019-01-01
    “…This paper makes effort to retrieve/recover missing information of overexposure by exploiting deep learning for its powerful nonlinear representation which makes it widely used in image reconstruction/restoration. …”
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    Article
  20. 6240

    The Correlation between Pore Structure and Macro Durability Performance of Road Concrete under Loading and Freeze-Thaw and Drying-Wetting Cycles by Sheng-bo Zhou, Jun-lin Liang, Wei-an Xuan, Ye Qiu

    Published 2017-01-01
    “…The correlation between strength and pore parameters can be represented with multiple nonlinear equations. A negative correlation is shown between strength and fractal dimension and most probable pore size. …”
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