Below the Schwinger critical magnetic field value, quantum vacuum and gamma-ray bursts delay by Iver H. Brevik, Moshe M. Chaichian, Anca Tureanu

“…The latter is equivalent to the use of the Euler-Heisenberg effective theory in nonlinear electrodynamics, where the Lagrangian has now a term with a higher power, B4. …”
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Level of elderly-supportive infrastructure, fine particulate matter and cardiovascular disease hospitalisations: a time-stratified case-crossover study in Wuhan by Mengxue Qin, Xingyuan Liu, Luyao Wang, Tengchong Huang, Xiuran Zuo, Yuliang Zou

“…The correlation of PM2.5 with cardiovascular hospitalisations and the moderating role of elderly-supportive infrastructure were elucidated through the conditional logistic regression and z-test. Nonlinear relationships among variables were determined using restricted cubic splines. …”
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Flow characteristics in heated trapezoidal channels: A finite element method study of Reynolds number and fin design influences by Mohammed Riad Benouaz, Houssameddine Kandouci, Mohammed Ayad Alkhafaji, Noureddine Kaid, Alain M. Dikandé, Younes Menni, Giulio Lorenzini, Ali J. Chamkha

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Dynamic Analysis of Vehicle Track Coupling Based on Double Beam Track Model by Yayun Qi, Huanyun Dai, Jianjin Yang, Kun Xu

“…The rail was considered as double Timoshenko beam in this paper, applied to the vehicle track coupling dynamics model; the Hertz nonlinear method is used to calculate the wheel rail contact force. …”
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Computation Simulation Research of Bushen Zhuangjin Decoction on Multi-target Effects in Delaying Cataplasia of Articular Cartilage by Chunsong ZHENG, Xiaojie XU, Suixin HUANG, Hongzhi YE

“…The relations between BSZJD compounds and targets followed the power function <italic>p</italic> (<italic>k</italic>) =<italic>k</italic>^-1.6429, which revealed the interaction between BSZJD compounds and targets existed the nonlinear regulation pattern of"one to many, many to one".Conclusion:BSZJD effects for delaying cataplasia of articular cartilage exist multi-target effects. …”
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Device and Measuring Method the Moments of Rolling Resistance Forces on the Contact Spot by I. Z. Gilavdary, S. Mekid, N. N. Riznookaya

“…It is assumed that the adhesion forces can exhibit both dissipative properties and elastic properties, while elastic forces are independent of the strain rate.The originality of the method of measuring rolling resistance in this paper consists in using the method of nonlinear approximation of the dependence of the amplitude and period of swing of the pendulum on time. …”
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Static Analysis of Gelatin-like Simulation Mass as a Subsoil in Scale Physical Modeling by Veronika Valašková, Jozef Vlček

“…However, the testing of gelatin-like materials is a complex process because of their viscoelastic nonlinear behavior.…”
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Construction of a prediction and visualization system for cognitive impairment in elderly COPD patients based on self-assigning feature weights and residual evolution model by Wenwen Cheng, Chen Yu, Xiaohui Liu

“…A self-assigning feature weights and residual evolution (SAFWRE) algorithm was built on the concept of linear and nonlinear information fusion.ResultsThe best method in SIOA was the circle search algorithm. …”
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Association of Body Mass Index with Echocardiographic Parameters and Incidence of Left Atrial Thrombus or Spontaneous Echo Contrast in Patients with Nonvalvular Atrial Fibrillation... by Yi Qiu, Shu Jiang

“…For each 1-unit increase in BMI, the odds of LAT/SEC increased by 12% (odds ratio (OR): 1.12, 95% CI: 1.02, 1.24). A threshold nonlinear relationship was found using the GAM between BMI and the risk of LAT/SEC. …”
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Influence of the coefficient of non-uniform expansion of the soil sample on mechanical characteristics by A. Z. Ter-Martirosyan, G. O. Anzhelo, L. Yu. Ermoshina, I. A. Bokov, A. V. Manukyan

“…However, the values of secant modulus of deformation at 50 % strength E50 are lower by an average of 7.7 % when the nonlinear expansion coefficient of the steel is excluded from the processing.Conclusions. …”
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Elastoplastic Analysis of Circular Opening Based on a New Strain-Softening Constitutive Model and Its Engineering Application in Hydraulic Fracturing by T. Yang, Q. S. Ye

“…The research results show that the fracture zone radii of circular opening presents the characteristic of EBM > EPBM > ESM > EPSFM; otherwise, it is on the contrast for the critical hydraulic pressure at the softening-fracture zone interface; the postpeak failure radii show a linear decrease with the increase of load-bearing coefficients or a nonlinear increase with the increasing brittleness coefficient. …”
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Assimilation of Sparse Continuous Near‐Earth Weather Measurements by NECTAR Model Morphing by I. A. Galkin, B. W. Reinisch, A. M. Vesnin, D. Bilitza, S. Fridman, J. B. Habarulema, O. Veliz

“…When applied to the sparse spatial data, such a neural network becomes a nonlinear multiscale interpolator of missing information. …”
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Experimental Investigation of Seawater for the Absorption of Carbon Dioxide from Ship Chimneys by İrem Koçyiğit Çapoğlu, Duygu Uysal, Özkan Murat Doğan, Bekir Zühtü Uysal

“…In these experiments, the liquid side individual physical mass transfer coefficients (kL0) were determined by the oxygen (O2) desorption method for pure water and 3.5 wt% NaCl solution. Also, nonlinear regression analyses were performed, and correlations were developed for mass transfer coefficients.…”
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Qualitative Analysis of a COVID-19 Mathematical Model with a Discrete Time Delay by Abraham J. Arenas, Gilberto González-Parra, Miguel Saenz Saenz

“…The constructed SAIRS-type mathematical model is based on nonlinear delay differential equations. The discrete-time delay is introduced in the model in order to take into account the latent stage where the individuals already have the virus but cannot yet infect others. …”
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Association between the atherogenic index of plasma and long-term risk of type 2 diabetes: a 12-year cohort study based on the Japanese population by Qianxing Zhou, Yamei Wu, Mingkang Li

“…Cox proportional hazard regression models were employed to assess the association between AIP and T2D risk. The nonlinear association was examined using a restricted cubic spline (RCS) model. …”
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Correlation between neutrophil percentage-to-albumin ratio and all-cause and cerebrovascular mortality among hypertension patients by You Li, Cheng Yu

“…RCS regression analysis found a positive nonlinear correlation between NPAR and all-cause and cerebrovascular mortality of hypertension patients. …”
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Modeling of two-dimensional MoxW_1−xS_2ySe_2(1−y) alloy band structure by N. Yu. Pimenov, S. D. Lavrov, A. V. Kudryavtsev, A. Yu. Avdizhiyan

“…However, since the band gap in such structures is highly nonlinear as far as their chemical composition is concerned, it can be challenging to select the required concentration in order to achieve uniform absorption. …”
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Influence of Infill Wall Configuration on Failure Modes of RC Frames by Xiaojie Zhou, Xiaoyuan Kou, Quanmin Peng, Jintao Cui

“…Based on the experiment, nonlinear finite element simulation and analysis were conducted to study the effects of the infill walls and connections. …”
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Overall Stability Analysis of Xiluodu High Arch Dam Based on Fine Three-Dimension Numerical Modeling by Tianhui Ma, Zhiqiang Feng, Chun'an Tang, Peng Lin, Kedar Prasad Yadav

“…The simulation results show that, under normal load conditions, the dam foundation surface after comprehensive reinforcement has better overall stability, the stress and deformation of the dam body have good symmetry, and the overload factor of crack initiation under overload calculation K1 = 2P0 (P0 is normal water load), the nonlinear deformation overload factor K2 = 3.5–4P0, and the limit load factor K3 = 7.5–8.0P0, dam safety can be satisfied. …”
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The weight-adjusted-waist index predicts all-cause and cardiovascular mortality in hypertension by Yu Zheng, Zixing Nie, Yifan Zhang, Tao Sun

“…The relationship between WWI and mortality was assessed using a weighted Cox proportional risk model; the nonlinear relationship was explored using restricted cubic splines. …”
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