model

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Model

Any mathematical formula or other structure that economists use to explain or predict occurrences. Economists test their models with real world facts before they gain wide acceptance, but, even then, there is no guarantee that a model will always be a correct predictor. See also: Model risk.

model

An abstraction of reality, generally referring in investments to a mathematical formula designed to determine security values. Economists also use models to project trends in economic variables such as interest rates, economic activity, and inflation rates.

model

see ECONOMIC MODEL.
References in periodicals archive ?
In the course of the study, a three-dimensional implant model was constructed and a 3D scan of the femur was used to calculate the implant strength under the influence of human weight using Autodesk 3DsMax 2015 and Inventor 2017 programs.
Moreover, this material caused the highest von Mises stress value on the implant model because its low elastic modulus provides more deformation on the structure.
In conclusion, the slow release implant model, using the tested drugs through HVF vehicle, was not efficient in reducing the immune response in a controlled manner.
These minimum differences support the results from the finite element analysis demonstrating that both Von Mises stress and the distribution of stress and deformation are practically identical when comparing both Ti-15Zr and TAV implant models. For both models, it was confirmed that the bone load transfer is almost exclusively produced in the cortical bone surrounding the implant neck, which responds to an engineering principle known as the "composite beam analysis." These results corroborate most of the finite element studies consulted [22, 23].
Finally, implant design must be validated, so, bone and implant models existing in BioCAD software, will be exported to CAE environment (Computer Aided Engineering), to know the biomechanical behavior of the bone-implant interface, through structural analysis (Correa et al, 2012).
The algorithm creates a mesh by automatic intersecting of spine and implant models. As the spine model, we use a three-layered spine model consisting of a vertebral arch, an outer vertebral body, and an inner vertebral body.
The testing of each implant model was done as follows: an 820N tightening load was applied on the abutment fixing screw and a 500N test load was applied on the loading device.
Surgery to implant this device is expected to take 90 minutes, compared to the six hours it takes to implant Model 1.