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Simulation of spatially distributed monthly groundwater recharge: Spatially distributed monthly groundwater recharge was simulated using the WetSpass-M model (Abdollahi et al., 2017; Batelaan & De Smedt, 2007) as explained in section 2.4.1. Spatial variability is taken into account during the groundwater recharge simulation, and spatial …
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The impact of extrusion parameters on physicochemical, nutritional and sensorial properties of expanded snacks from pea and oat fractions
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size k and S is a parameter sensitivity matrix of size nm×k [33]. Low sensitivity parameters can be systematically iden-tified as low importance parameters in the model by this analysis process [34,35]. Cross correlation between para-meters, which impedes reliable parameter estimates, is also assessed with these methods [36].
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In order to gain further insights into the underlying mechanism for the effective TET through VINES for η between 0.04 and 0.06 in Fig. 2 (a) and above 0.08 in Fig. 2 (b), a bifurcation analysis is carried out as shown in Fig. 3. Fig. 3 (a) and (b) show the bifurcation diagram for the relative velocity w ̇ i (= z ̇ m, i − z ̇ b, i) at impacts as a function of the …
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Some aircraft in service or operation did not shimmy before, but suddenly appeared after a period of use. To solve the problem of clearance shimmy during the service of a certain aircraft, we established a dynamic model of rotating gear with clearance based on the flexible multi-body dynamics model of landing gear and L-N contact theory.
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Accumulation of micro and nano-plastic in the oceans has emerged as a global challenge. Here, the authors predict a hierarchy of features that regulate their degradation and surface erosion by a ...
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This approach essentially accounts for the displacement of material particles located at positions P 1 and P 2 and relates their final location with the strength model parameters. Although incorporating more points along the profile may help further inform the calibration, we will see that reasonable fits to the entire profile are attainable through …
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tosis deconvolution (MCKD) to enhance its impact characteristics. The results show that the phase between the fault impact and its adjacent meshing impact is consistent with the pro-posed assisted phase. Finally, the correctness of the vibration mechanism and the improved phenomenological model are verified experimentally. 1. Introduction
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However, the essence of the impact problem between bourrelet and barrel is the interaction of objects with complex geometry under a small gap. The research started early but developed slowly. L-N model is the most commonly used model to characterize the contact between bourrelet and barrel [18], [19], [20]. Download: Download high-res …
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This gives [6] (40) N 0 = 100 exp − v c m where v is the impact velocity; c is a fitting parameter and m is termed the Weibull modulus. The fitting value of c and m …
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In order to identify and mathematically model the impact of these lighting parameters on VF, it is necessary to select the key parameters from the 20 ones. The VF values of each setting were calculated using Formula 1, and the maximal information coefficients (MIC) between the 20 parameters and VF were computed to respectively …
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Different computational techniques for cosmological phase transition parameters can impact the Gravitational Wave (GW) spectra predicted in a given particle physics model. To scrutinize the importance of this effect, we perform large-scale parameter scans of the dynamical real-singlet extended Standard Model using three …
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This section provides validation of the computational model for the breakage of glass subjects to impact with the glass fracture model and the FEM-DEM code Y. Examples in both 2D and 3D are included and corresponding dynamic behaviours are investigated. 4.1. Validation for two-dimensional glass beams4.1.1. Elastic behaviour
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The impact breakage model is implemented in a DEM-PBM coupling framework. Limitation and extension of the breakage model are stressed for the future study. Nomenclature …
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Kuz-Ram model is generally used. The Kuz-Ram model is an empirical fragmentation model based on the Kuznetsov (1973) and Rosin and Rammler equations (Rosin and …
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As presented in Fig. 14 to Fig. 16, it is obvious to distinguish impact types by instantaneous wave profiles as (a) broken waves at C1: the waves already break before the vertical wall and hit the wall with a chaotic and disorderly surface; (b) almost breaking at C4: plunging breaker entraps a small air pocket and (c) non-breaking at C6: the ...
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Throughout the developing world, most remote and isolated communities are still without reliable electricity in the twenty-first century, and this is primarily due to the high cost of grid extensions. In communities that do have electricity, they usually rely on diesel generators, though these have high operating and maintenance costs, while also …
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6. Numerical simulation. Our numerical experiments are based on the simulation of the solution of the nonlinear Unemployment model (2).We are concerned in the case when the values of the basic reproduction number R (ϵ) > 1.This case study is chosen to ensure that the positive equilibrium Q ∗ exists and exhibits the local …
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The procedure discussed in Section 5.2 had been employed to estimate the impact damping model parameters for the experimental system shown in Fig. 1. The experiment was conducted for a given value of e/r c and Ω c is slowly increased until one impact per revolution of the cam is achieved.
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The parameters Rs, Lf and Lr are respectively the stator resistance, the global leakage inductance referred to the stator and the rotor inductance. B. Rotor It is assumed that the rotor cage can ...
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In this research, a methodology is proposed for predicting the material response and failure patterns of lithium-ion batteries subjected to high impact based on the experimental results at lower velocities. For this purpose, a constitutive law was proposed and parameters were calibrated for two types of lithium-ion cells, pouch and elliptical.
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With the continuous development of high-pressure water jet technology, research on the optimization of structural parameters for multi-nozzle configurations, the perforation effect of jet rotational impact rock breaking, and the impact force during rock breaking has received increasing attention. Through the development of a self-designed …
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The JH2 constitutive model is further optimized on the basis of the HJC model, and three parameters are added on the basis of the 17 parameters of the HJC model, ... The concrete around the bullet hole was broken, but the damage area on the impact surface was still greater than that on the back surface, and there was still no phenomenon of ...
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The measured features to be used in the SVC classifiers are then the fundamental harmonic, located at f s, and its left sideband, located at f l.As it can be observed from Fig. 9, the proposed model based SVC test accurately discriminates the broken and healthy motors used in our experimental results.. Download : Download full …
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So began the Powhatan Uprising of March 22, 1622, which claimed the lives of approximately 347 colonists and came perilously close to extinguishing England's most promising outpost in North America. ... Because the Indian uprising had such an important impact on English colonization and Anglo-Powhatan relations, historians have …
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2.1 Transient unloading model under in-situ stress. When excavating a circular tunnel at a large depth in rock mass, the in-situ stress is uniformly distributed. To …
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On each trial, participants indicated which of two similar stimuli was presented; correct identifications were rewarded. Quantile-probability plots and the HDDM quantified the impact of MDD on response times (RT), speed of evidence accumulation (drift rate), and the width of decision thresholds, among other parameters.
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By 1622, the paramount chief Powhatan and Pocahontas were dead, and the English had spread deep into Powhatan territory. The English forced the Powhatan Indians to move inland away from their traditional river valley homes. Native leaders under Opechancanough, Powhatan's half-brother and successor, had privately adopted a …
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Both function parameters were found to be dependent on the impact velocity and the initial particle size. • The procedure described in this paper makes it possible to characterize any new material for breakage simulation and analysis. Nomenclature. a,b,α,ϕ,t 10, A v, B v, a α,b α,c α. model parameters. B i,j. cumulative …
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Hyperparameters are adjustable parameters that let you control the model optimization process. Different hyperparameter values can impact model training and convergence rates (read more about hyperparameter tuning) We define the following hyperparameters for training: Number of Epochs - the number times to iterate over the dataset
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