Exact(3)
The number of cancer glands follows a Gompertzian growth model, a smooth S-shaped curve.
To control for seasonality and long term trend we also included in the model a smooth function of calendar date based on splines, estimated separately for each conurbation.
Although we performed a sensitivity analysis using different time periods to define seasons, we could not model a smooth transition in the magnitude of associations between pollutants and mortality between consecutive seasons.
Similar(57)
This initial model was also used as a prior model, and a smooth model was obtained using the Occam algorithm.
To avoid abrupt pattern changes at the boundaries of the tropics, we modeled a smooth latitudinal variation of the amplitude by implementing a corresponding sine wave.
It may be useful to consider the conversion of the layered structure model to a smooth depth-varying structure model when constructing a 3D velocity model of sedimentary structure for long-period ground motion simulations.
In a previous article we introduced the model employed in the present analysis and compared it to the kernel density model (where the kernel density model estimates a smooth probability density using multivariate or univariate data) [ 34].
To overcome these difficulties, a novel idea proposed in this work is to use a scalar sign function approach to effectively transform the original nonlinear and non-smooth model into a smooth nonlinear rational function model.
This model uses a smooth approximation of the unilateral displacement constraints that are used to model contact interactions.
This clustered drag model provides a smooth transition between the uniform and clustered states by means of a weighting function with two model parameters.
When tested, the towed ship model has a smooth clean hull with no appendages such as bossing, rudder, propeller, or bilge keels.
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